PORTABLE REFRIGERATOR

Description

[0001] The present invention relates to a portable refrigerator comprising a rechargeable battery pack which many be detachable from a main housing and may be recharged through a conventional AC power source, a detachable solar panel, a car power output, and any DC power supply.

[0002] Portable refrigerators have widely been utilized around the world. A conventional portable refrigerator may utilize a compressor for actuating heat exchange between a storage compartment and ambient environment. A major disadvantage of conventional portable refrigerators relates to acquiring power for maintaining heat exchange processes which take place in various components of the portable refrigerators. Conventionally, a majority of portable refrigerators is electrically connected to a power port provided in a car. An obvious problem for this arrangement is that when the portable refrigerator is operating, the car must also be started to allow continuous supply of electrical power from the power port of the car.

[0003] Some conventional portable refrigerators utilize solar panels to collect solar energy and store the solar energy in a rechargeable battery embedded in the corresponding portable refrigerator. A problem with this type of portable refrigerators is that the rechargeable batteries cannot be taken out from the refrigerators. Moreover, the rechargeable batteries may or may not be charged by other means, such as connecting the portable refrigerators to a wall power supply. Even if the portable refrigerator can be connected to a wall power supply, it would be very inconvenience for a user to do so.

[0004] In French patent publication number FR 3015013, Pierrard Jean Pierre disclosed a refrigerator which maybe carried by a vehicle (Fig. 4). This document does not disclose a portable refrigerator having a detachable rechargeable battery pack, wherein the rechargeable battery pack may be recharged when it is attached or detached from a main housing. In US patent publication number US 2017/119116 A1, Bradley Todd disclosed an article of manufacture comprising an inflatable cooler having at least a portion with a drop-stitch construction. The inflatable cooler comprises a first inflatable drop-stitch chamber defining a bottom wall, a second inflatable drop-stitch chamber defining a plurality of side walls, and a third inflatable drop-stitch chamber defining a lid. This document does not disclose a portable refrigerator having a detachable rechargeable battery pack, wherein the rechargeable battery pack may be recharged when it attached or detached from a main housing. In US patent number 6595016, Demirkiran Arzu disclosed a portable refrigerator kit for perishable pet products comprising a boxlike assembly and a refrigeration assembly disposed in the boxlike assembly, container members removably disposed in the compartments of the boxlike member, and an assembly for supplying power to the refrigeration assembly. Means for supplying power to the refrigeration assembly includes a battery pack 37 conventionally connected with wires to the motor 28 and to the fan member 32 (Col. 3, lines 49-51). This document does not disclose a portable refrigerator having a detachable rechargeable battery pack, wherein the rechargeable battery pack may be recharged when it attached or detached from a main housing. In US patent publication number US 2017/259956 A1, Hori Shiro et al disclosed a stackable case comprising a cooling and/or heating device, and a power source device in which a plurality of battery packs is housed. The power supply device has latches for detachably joining or linking it to the stackable case in a stacked manner. This document does not disclose a portable refrigerator having a detachable rechargeable battery pack which can be accommodated in a main housing for ease of carrying and charging. This document does not disclose that the rechargeable battery pack may be recharged when it attached or detached from a main housing.

[0005] Certain variations of the present invention provide a portable refrigerator comprising a rechargeable battery pack which may be detachable from a main housing and may be recharged through a conventional AC power source or by a detachable solar panel.

[0006] The present invention provide a portable refrigerator in which various components of the portable refrigerator are centrally controlled by a central control unit.

[0007] Certain variations of the present invention provide a portable refrigerator in which the central control unit is arranged to utilize uninterruptible power supply (UPS) so that it provides near-instantaneous protection from input power interruptions to the compressor and other components of a cooling mechanism.

[0008] The invention provides a portable refrigerator according to claim 1.

[0009] This summary presented above is provided merely to introduce certain concepts and not to identify any key or essential features of the claimed subject matter.

Fig. 1 is a front perspective view of a portable refrigerator according to a preferred embodiment of the present invention.

Fig. 2 is a rear perspective view of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 3 is a schematic diagram of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 4 is an exploded perspective view of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 5 is a schematic diagram of a bottom wall of a main housing of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 6 is a schematic diagram of the portable refrigerator according to the preferred embodiment of the present invention, illustrating connection between a refrigerator cover and a main housing.

Fig. 7 is a perspective view of the refrigerator cover according to the preferred embodiment of the present invention.

Fig. 8 is another perspective view of the refrigerator cover according to the preferred embodiment of the present invention.

Fig. 9 is a perspective view of a power compartment of the portable refrigerator according to the preferred embodiment of the present invention, illustrating a bottom portion of the power compartment.

Fig. 10 is a perspective view of the power compartment of the portable refrigerator according to the preferred embodiment of the present invention, illustrating a lower portion of the power compartment.

Fig. 11 is a front view of the power compartment of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 12 is an exploded perspective view of the rechargeable battery pack of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 13 is a perspective view of the actuating member of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 14 is a schematic diagram of the rechargeable battery pack of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 15 is a block diagram of a central control unit and cooling mechanism of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 16 is a top perspective view of the rechargeable battery pack of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 17 is a bottom perspective view of the rechargeable battery pack of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 18 is a block diagram of a central control unit of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 19A to Fig. 19E are circuit diagrams of a charging control module of a central control unit of the portable refrigerator according to the preferred embodiment of the present invention.

Fig. 20A to Fig. 20H are circuit diagrams of a solar charging module of a central control unit of the portable refrigerator according to the preferred embodiment of the present invention.

[0010] The following detailed description of the preferred embodiment is the preferred mode of carrying out the invention. The description is not to be taken in any limiting sense. It is presented for the purpose of illustrating the general principles of the present invention.

[0011] Referring to Fig. 1 to 18, Fig. 19A to Fig. 19E and Fig. 20A to Fig. 20H of the drawings, a portable refrigerator according to a preferred embodiment of the present invention is illustrated. Broadly, the portable refrigerator comprises a main housing 10, a refrigerator cover 20, a cooling mechanism 30, a rechargeable battery pack 40, and a central control unit 50.

[0012] The main housing 10 has an accommodating cavity 11 for storing at least one item, and a power compartment 12. The refrigerator cover 20 is provided on the main housing 10 for selectively closing the accommodating cavity 11.

[0013] The cooling mechanism 30 is supported by the main housing 10 and comprises a plurality of heat exchanging tubes 31, a compressor 32, an evaporator 33 connected to the compressor 32 through at least one of the heat exchanging tubes 31, and a condenser 34 connected to the evaporator 33 and the compressor 32 through at least one of the heat exchanging tubes 31.

[0014] The rechargeable battery pack 40 is detachably attached on the power compartment 12 of the main housing 10. Moreover, the rechargeable battery pack is adapted for connecting to a power source.

[0015] The central control unit 50 is supported in the main housing 10 and electrically connected to the rechargeable battery pack 40 and the cooling mechanism 30 for centrally controlling an operation of the cooling mechanism 30, wherein a predetermined amount of refrigerant is arranged to controllably pass through the heat exchanging tubes 31, the condenser 34, the evaporator 33 and the compressor 31 for extracting heat from the accommodating cavity 11.

[0016] According to the preferred embodiment of the present invention, the portable refrigerator may be utilized in outdoor environment as a self-contained unit. The main housing 10 may comprise a front wall 141, a rear wall 142, and two side walls 143, wherein the accommodating cavity 11 may be formed as a space between a space surrounded by the front wall 141, the rear wall 142 and the side walls 143. The main housing 10 may further have an access opening 17 formed on a top side thereof as a top opening of the accommodating cavity 11. Thus, the accommodating cavity 11 may communicate with an exterior of the main housing 10 through the access opening 17.

[0017] The main housing 10 may further comprise a first side peripheral rim 103, a second side peripheral rim 104 and a rear peripheral rim 105 upwardly extended from an outer surface of the two side walls 143 and the rear wall 142 respectively for connecting to the refrigerator cover 20 (described in more details below). The access opening 17 may therefore be formed at a position below the first side peripheral rim 103, the second side peripheral rim 104 and the rear peripheral rim 105. Moreover, a cover seat 106 may be formed as the space on top of the two side walls 143, the rear wall 142 and the front wall 141 and surrounded by the first side peripheral rim 103, the second side peripheral rim 104 and the rear peripheral rim 105.

[0018] The main housing 10 may further have a components compartment 13 formed adjacent to the accommodating cavity 11 for storing various mechanical and electrical components of the portable refrigerator.

[0019] The main housing 10 may further comprise a plurality of wheels 15 rotatably provided on two side walls 143 respectively for facilitating easy transportation of the portable refrigerator. Moreover, the main housing 10 may further comprise a retractable handle 16 provided on the rear wall 142 so that a user may utilize the retractable handle 16 to carry the portable refrigerator. The main housing 10 may further comprise a plurality of hanging members 14 formed on the rear wall 142 for allowing an external objects to be hung thereon. Furthermore, the main housing 10 may further comprise an anchoring member 140 formed on a bottom wall 144 of the main housing 10 so that a user may tie an external object on the main housing by using the anchoring member 140.

[0020] The refrigerator cover 20 may be detachably attached on the main housing 10 to selectively close the access opening 17. Specifically, the refrigerator cover 20 may comprise a cover body 21 having a top surface 211, a bottom surface 212, a first side surface 213 and a second side surface 214. The cover body 21 may have a plurality of (but at least one) indentions 215 formed on the top surface 211 for holding cups or other beverage containers. In this preferred embodiment, there may be three indentions 215, two of which may have a circular cross section when viewed from the top while the remaining indention 215 may have a rectangular cross section also when viewed from the top.

[0021] Moreover, the refrigerator cover 20 further comprises a frictional member 22 provided on one of the indentions 215 of the cover body 21, wherein the frictional member 22 is configured to have a greater frictional force than other parts of the refrigerator cover 20 so that when external items, such as tablet computers, are disposed on the frictional member 22, the external items may be retained on the frictional member 22.

[0022] The refrigerator cover 20 may further comprise a first connecting member 23 and the second connecting member 24 extended from the first side surface 213 and the second side surface 214 of the cover body 21 respectively for pivotally and detachably connecting to the main housing 10. Specifically, the first connecting member 23 may be outwardly extended from the first side surface 213 and may be configured as having a cylindrical shape (i.e. circular cross-sectional shape) for pivotally connecting to the main housing 10. On the other hand, the second connecting member 24 may have a quadrilateral or rectangular cross-sectional shape and may be outwardly extended from the second side surface 214.

[0023] Referring to Fig. 4 and Fig. 6 of the drawings, the main housing 10 may further has a first pivotal slot 101 and a second pivotal slot 102 formed on the first side peripheral rim 103 and the second side peripheral rim 104 respectively, wherein the first connecting member 23 and the second connecting member 24 may be arranged to pivotally and detachably connect to the first pivotal slot 101 and the second pivotal slot 102 respectively.

[0024] The first pivotal slot 101 may be shaped and sized to correspond to a cross sectional shape of the first connecting member 23 so that when the first connecting member 23 is inserted into the first pivotal slot 101, the first connecting member 23 may freely rotate about a longitudinal axis of the first pivotal slot 101. Thus, when the first connecting member 23 is configured as having a cylindrical cross section, the first pivotal slot 101 may also be configured as such.

[0025] On the other hand, the second pivotal slot 102 may be inclinedly extended from a top surface of the second side peripheral rim 104 so as to form a top opening 1041 on the second side peripheral rim 104 as the top end of the second pivotal slot 102. The second pivotal slot 102 may downwardly and inclinedly extend from the top opening 1041 along an inner side surface 1042 of the second side peripheral rim 104. The second pivotal slot 102 may have an enlarged portion 1021 and a contracted extension portion 1022 extended between the enlarged portion 1021 and the top opening 1041, wherein the second connecting member 24 may be arranged pivotally move in the enlarged portion 1021 and to slide along the contraction extension portion 1022 only when the second connecting member 24 aligns with the contracted extension portion 1022.

[0026] As shown in Fig. 6 of the drawings, when the second connecting member 24 is inserted into the enlarged portion 1021 of the second pivotal slot 102, the second connecting member 24 may rotate about a longitudinal axis of the enlarged portion 1021 of the second pivotal slot 102. Since a width of the contracted extension portion 1022 is smaller than that of the enlarged portion 1021, when the second connecting member 24 is in the enlarged portion 1021, the second connecting member 24 may normally be prevented from sliding along the contracted extension portion 1022. However, when the second connecting member 24 is in the enlarged portion 1021 and aligns with the contracted extension portion 1022, the second connecting member 24 may slide along the contracted extension portion 1022 and detach from the second side peripheral rim 104 through the top opening 1041.

[0027] This arrangement ensures that the refrigerator cover 20 may only detach from the main housing 10 when the refrigerator cover 20 is pivotally moved to a predetermined angle of inclination with respect to the main housing 10. This angle of inclination is the angle of inclination of the contracted extension portion 1022 forming on the second side peripheral rim 104.

[0028] The cooling mechanism 30 comprises the compressor 32, the evaporator 33 and the condenser 34. They are connected by the heat exchanging tubes 31. The compressor 32 and the condenser 34 may be positioned in the components compartment 13 of the main housing 10. A predetermined amount of refrigerant flows through the heat exchanging tubes 31 for performing heat exchange with another physical medium so as to extract heat from the accommodating cavity 11.

[0029] The cooling mechanism 30 may further comprise a fan 35 provided in the components compartment 13 while the main housing 10 may further have a plurality of ventilating slots 18 which communicate the components compartment 13 with an exterior of the main housing 10. As such, the fan 35 may be driven to draw air into the components compartment 13 through the ventilating slots 18. Ambient air having lower temperature may be used to cool down the refrigerant which flows through the condenser 34 and carries heat from the accommodating cavity 11. The fan 35 may be mounted adjacent to the condenser 34 for effectively remove heat from the refrigerant flowing through the condenser 34. The fan 35 may also be electrically connected to the central control unit 50 so that it may also be centrally connected by the central control unit.

[0030] Referring to Fig. 3, Fig. 12 and Fig. 14 of the drawings, the rechargeable battery pack 40 comprises a battery housing 41 and a battery core 42 received in the battery housing 41 for storing electric power. The battery housing 41 has a front battery surface 411, a rear battery surface 412, two side battery surfaces 413, a top battery surface 414 and a bottom battery surface 415. The battery housing 41 may be configured to resemble a largely rectangular cross-sectional shape when viewed from the front. The battery housing 41 is fittedly and detachably accommodated in the power compartment 12 of the main housing 10.

[0031] Referring to Fig. 3 and Fig. 12 to Fig. 13 of the drawings, the rechargeable battery pack 40 further comprises a locking arrangement 43 operatively provided on the battery housing 41 for allowing the battery housing 41 to be selectively locked or detached from the power compartment 12. Specifically, the locking arrangement 43 comprises a first actuating member 431, a resilient element 433 mounted on the first actuating member 431 and may comprise a second actuating member 432 and a plurality of resilient elements 433 to normally exert a biasing force thereto.

[0032] On the other hand, the locking arrangement 43 further contains a plurality of through passage holes 435 formed on the battery housing 41, wherein parts of the first actuating member 431 and the second actuating member 432 may selectively pass through the corresponding through passage holes 435 (described below).

[0033] The first actuating member 431 has a first locking latch 4311, a second locking latch 4312, and a first depressing member 4313 positioned between the first locking latch 4311 and the second locking latch 4312. The first actuating member 431 may be mounted in the battery housing 41 such that the first locking latch 4311, the second locking latch 4312 and the first depressing member 4313 may align with three of the corresponding through passage holes 435 respectively. At least one of the resilient elements 433 normally exerts a biasing force against the first actuating member 431 so as to drive the first locking latch 4311, the second locking latch 4312 and the first depressing member 4313 to normally expose out of the battery housing 41 through the corresponding through passage holes 435.

[0034] Similarly, the second actuating member 432 has a third locking latch 4321, a fourth locking latch 4322, and a second depressing member 4323 positioned between the third locking latch 4321 and the fourth locking latch 4322. The second actuating member 432 may be mounted in the battery housing 41 such that the third locking latch 4321, the fourth locking latch 4322 and the second depressing member 4323 may align with another three of the corresponding through passage holes 435 respectively. At least one of the resilient elements 433 may normally exert a biasing force against the second actuating member 432 so as to drive the third locking latch 4321, the fourth locking latch 4322 and the second depressing member 4323 to normally expose out of the battery housing 41 through the corresponding through passage holes 435.

[0035] It is worth mentioning that the first actuating member 431 may be provided on an upper portion of the battery housing 41 while the second actuating member 432 may be provided on a lower portion of the same battery housing 41. Accordingly, two of the through passage holes 435 may be provided on the top battery surface 414, and another two of the through passage holes 435 may be provided on the bottom battery surface 415 of the battery housing 41.

[0036] As shown in Fig. 16 to Fig. 17 of the drawings, the battery housing 41 may further have a first battery indention 416 indently formed on the front battery surface 411 and the top battery surface 414. Similarly, the battery housing 41 may further have a second battery indention 417 indently formed on the front battery surface 411 and the bottom battery surface 415 wherein two of the through passage holes 435 may be formed on the first indention surface 4161 of the first battery indention 416 and a second indention surface 4171 of the second battery indention 417 respectively. The first depressing member 4313 and the second depressing member 4323 may be pushed to expose out of the battery housing 41 through the through passage holes 435 formed on the inner surfaces 4161 of the battery indentions 416 respectively.

[0037] As shown in Fig. 1 to Fig. 2 and Fig. 6 to Fig. 8 of the drawings, the first battery indention 416 may be formed at a position between the first locking latch 4311 and the second locking latch 4312, and the second battery indention 417 may be formed at a position between the third locking latch 4321 and the fourth locking latch 4322. The first indention surface 4161 may be substantially parallel to the top battery surface 414, while the second indention surface 4171 may be substantially parallel to the bottom battery surface 415.

[0038] The battery housing 41 is divided into a front thicker portion 418 and a rear thinner portion 419 so that a vertical height of the front thicker portion 418 is greater than that of the rear thinner portion 419. As such, the bottom battery surface 415 of the battery housing 41 is divided into a front section 4151 and a rear section 4152, wherein the front section 4151 is formed as the bottom surface of the front thicker portion 418 of the battery housing 41, while the rear section 4152 is formed as the bottom surface of the rear thinner portion 419. The second battery indention 417, the third locking latch 4321 and the fourth locking latch 4322 may be provided on the front section 4151 of the bottom battery surface 415. A biasing surface 4153 is formed as the boundary surface between the front section 4151 and the rear section 4152. This biasing surface 4153 may be parallel to the front battery surface 411 and the rear battery surface 412.

[0039] The battery housing 41 may further have a plurality of securing slots 410 formed on the top battery surface 414 and rear section 4152 of the bottom battery surface 415 respectively. These securing slots 410 may be formed on the rear thinner portion 419 of the battery housing 41.

[0040] Moreover, the rechargeable battery pack 40 may further comprise a connection port 44 provided on the bottom battery surface 415 of the battery housing 41. The connection port 44 may be electrically connected to the battery core 42 so that it may be used as a power outlet for the rechargeable battery pack 40. In this preferred embodiment of the present invention, the connection port 44 may be provided on the front section 4151 of the bottom battery surface 415 and the biasing surface 4153.

[0041] The battery housing 41 may further have a plurality of positioning recesses 401 provided on the bottom battery surface 415 for further assisting positioning of the battery housing 41 in the power compartment 12. Each of the positioning recesses 401 may extend on the front section 4151 and the biasing surface 4153 and align with a longitudinal direction of a corresponding securing slot 420.

[0042] Referring to Fig. 3 and Fig. 9 to Fig. 11 of the drawings, the power compartment 12 may be surrounded by a plurality of surfaces. Specifically, the power compartment 12 may be surrounded by a top compartment surface 121, a bottom compartment surface 122, a rear compartment surface 123, and two side compartment surfaces 124. The power compartment 12 may therefore be surrounded by the top compartment surface 121, the bottom compartment surface 122, the rear compartment surface 123, and the two side compartment surfaces 124. Moreover, the main housing 10 may further have a compartment opening 125 communicating the power compartment 12 with an exterior of the main housing 10. Thus, the power compartment 12 may be defined as a cavity for accommodating the rechargeable battery pack 40 and may be surrounded by the top compartment surface 121, the bottom compartment surface 122, the rear compartment surface 123, and the two side compartment surfaces 124.

[0043] In order to accommodate the bottom battery surface 415 of the battery housing 41, the bottom compartment surface 122 may also be divided into a front segment 1221 and a rear segment 1222 wherein a vertical height of the front segment 1221 and the rear segment 1222 with respect to the top compartment surface 121 may be different. The front segment 1221 may be formed at a position lower than that of the rear segment 1222. An urging surface 1223 may be formed as the boundary surface between the front segment 1221 and the rear segment 1222. This urging surface 1223 may be parallel to the rear compartment surface 123.

[0044] The main housing 10 may further comprise a plurality of securing ridges 1224 formed on the top compartment surface 121 and the rear segment 1222 of the bottom compartment surface 122 at positions corresponding to the securing slots 420 of the battery housing 41. When the rechargeable battery pack 40 is accommodated in the power compartment 12, the securing ridges 1224 may be arranged to engage with the securing slots 420 respectively so as to secure the rechargeable battery back 40 in the power compartment 12.

[0045] Moreover, the main housing 10 may further comprise a plurality of positioning protrusions 1225 formed on the front segment 1221 of the bottom compartment surface 122 at positions corresponding to the positioning recesses 401 of the battery housing 41. When the rechargeable battery pack 40 is accommodated in the power compartment 12, the positioning protrusions 1225 may be arranged to engage with the positioning recesses 401 respectively so as to secure the rechargeable battery back 40 in the power compartment 12.

[0046] The main housing 10 may further comprise a power inlet 19 formed on the urging surface 1223 of the power compartment 12 for electrically connecting to the connection port 44 of the rechargeable battery pack 40.

[0047] The portable refrigerator may further comprise a solar energy arrangement 60 which may comprise a solar panel 61 detachably attached on the main housing 10 provided in the components compartment 13 and electrically connected to the central control unit 50. The main housing 10 may detachably connect to the solar panel 61 for collecting solar energy. The solar energy collected may be controlled and managed by the central control unit 50. The solar energy may be stored in the rechargeable battery pack 40. The solar energy may then be converted into electrical energy which may be supplied to various components of the portable refrigerator as controlled by the central control unit 50.

[0048] Referring to Fig. 18 of the drawings, the central control unit 50 may comprise a charging control module 51, a solar charging module 52, and an energy management module 53. In describing the central control unit 50 below, references will be made as follows: Fig. 19A to Fig. 19E illustrate the circuit diagram for each of the charging control module 51 while Fig. 20A to Fig. 20H illustrate the circuit diagram of the solar charging module 52.

[0049] The charging control module 51 may comprise an integrated chip HT7536-1, an integrated chip U3, an integrated chip U4, an integrated chip U7, a Zener diode ZD1, a diode D5, a diode D6, a diode D7, a diode D8, a light emitting diode LD3, a light emitting diode LD4, a light emitting diode LD5, a light emitting diode LD6, a transistor Q7, a metal-oxide-semiconductor field-effect transistor MOSFET Q1, a MOSFET Q2, a MOSFET Q3, a MOSFET Q4, a MOSFET Q5, a MOSFET Q6, a resistor R1, a resistor R2, a resistor R3, a resistor R5, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a resistor R21, a resistor R23, a resistor R24, a resistor R25, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R34, a resistor R35, a resistor R36, a resistor R37, a resistor R38, a resistor R39, a capacitor C2, a capacitor C3, a capacitor C5, a capacitor C6, a capacitor C8, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, a capacitor C25, a capacitor C26, a capacitor C27, a capacitor C28, a capacitor C29, a capacitor C30, a capacitor C31, a capacitor C32, a capacitor C34 and an inductor L1.

[0050] The solar charging module 52 may comprise an integrated chip JP1, an integrated chip P1, an integrated chip U4, the integrated chip U3, an integrated chip USB, an integrated chip COM1, a diode D1, a diode D2, a diode D3, a diode D4, the diode D5, the diode D6, the Zener diode ZD1, a Zener diode ZD2, a Zener diode U1, a transistor Q1, a transistor Q2, a transistor Q3, a transistor Q4, a transistor Q5, a transistor Q7, a MOSFET UA1, a MOSFET UA2, a MOSFET UA3, a resistor group RP1, a resistor group RP2, the inductor L1, a variable resistor RT2, a variable resistor MOV1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a resistor R21, a resistor R22, a resistor R23, a resistor R24, a resistor R25, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R33, a resistor R34, a resistor R35, a resistor R36, a resistor R37, a resistor R38, a resistor R39, a resistor R40, a resistor R41, a resistor R42, a resistor R44, a resistor R45, a resistor R46, a resistor R47, a resistor R49, a resistor R52, a resistor R53, a resistor R55, a resistor R56, a resistor R62, a capacitor C1, the capacitor C2, the capacitor C3, the capacitor C5, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C17, an electrolytic capacitor C4, an electrolytic capacitor C6, a switch K1, a switch K2, a switch K3, an operational amplifier U2A and an operational amplifier U2B. Each of the above-mentioned resistors and capacitors may have two terminals. Each of the above-mentioned diodes and Zener diodes may have a positive terminal and a negative terminal. Each of the above-mentioned transistors may have a gate terminal, an emitter terminal, and a collector terminal. Each of the above-mentioned MOSFET may have a source terminal, a gate terminal and a drain terminal.

[0051] In the charging control module 51, one terminal of resistor R8 may be electrically connected to a negative terminal of the Zener diode ZD1, a Gate terminal of MOSFET Q1. Another terminal of the resistor R8 may be electrically connected to a power source VCC, capacitor C10, capacitor C19 and a Drain terminal of MOSFET Q2.

[0052] Moreover, a Source terminal of MOSFET Q1, a positive terminal of Zener diode ZD1, a terminal of resistor R1 and a terminal of resistor R9 may be connected to Ground. Another terminal of resistor R1 may be electrically connected to capacitor C10 and another terminal of resistor R9. Resistor R11 may be electrically connected to capacitor C3, resistor R23, and a sixth pin of integrated chip U3. Capacitor C3 and resistor R25 may also be connected to Ground. Resistor C19 may be electrically connected to resistor R13, resistor R26, capacitor C20, and a Gate terminal of MOSFET Q3. Resistor R13 may be electrically connected to a Gate terminal of MOSFET Q2. A Source terminal of MOSFET Q2 may be electrically connected to resistor R27, capacitor C20 and a Source terminal of MOSFET Q3. Resistor R26 may be electrically connected to a fourth pin of integrated chip U3. Resistor R27 may be electrically connected to a fourth pin of integrated chip U3. A Drain terminal of MOSFET Q3 may be electrically connected to a terminal of resistor R14, a terminal of resistor R15, a terminal of capacitor C6, a terminal of capacitor C16 and second pin of integrated chip U3. Another terminal of resistor R14 may also be electrically connected to another terminal of resistor R15, another terminal of capacitor C6, a terminal of capacitor C17, a terminal of capacitor C12, a terminal of capacitor C14, a terminal of capacitor C15, a Drain terminal of MOSFET Q4, a Drain terminal of MOSFET Q5, an output J3, and a first pin of integrated chip U3. Another terminal of capacitor C16 and another terminal of capacitor C17 may be connected to the Ground. Furthermore, another terminal of capacitor C12, another terminal of capacitor C14, and another terminal of capacitor C15 may also be connected to Ground.

[0053] Signal ACOK may be electrically connected to a fifth pin of integrated chip U3. Signal IADP may be electrically connected to a terminal of capacitor C31 and a seventh pin of integrated chip U3. Signal IDCHG may be electrically connected to a terminal of capacitor C32 and an eighth pin of integrated chip U3. Another terminal of capacitor C31 and capacitor C32 may be connected to Ground. Signal PMON may be electrically connected to a ninth pin of integrated chip U3. Signal PRO may be electrically connected to a tenth pin of integrated chip U3. Signal SDA may be electrically connected to a terminal of resistor R34 and an eleventh pin of integrated chip U3. Signal SCL may be electrically connected to a terminal of resistor R35 and a twelfth pin of integrated chip U3. Another terminal of resistor R34 and resistor R35 may be connected to +3.6V voltage supply. Signal TB-STAT may be electrically connected to a sixteenth pin of integrated chip U3.

[0054] A positive terminal of diode D7 may be electrically connected to positive voltage supply VCC. A positive terminal of diode D6 may be electrically connected to power supply BAT. A negative terminal of diode D7 may be electrically connected to a negative terminal of diode D6 and a terminal of resistor R20. Another terminal of resistor R20 may be electrically connected to another terminal of capacitor C22, and a twenty eighth pin of integrated chip U3. Another terminal of capacitor C22 may be connected to the Ground. A Source terminal of MOSFET Q4 may be electrically connected to twenty seventh pin of integrated chip U3, a terminal of capacitor C21, a Drain terminal of MOSFET Q6, and a terminal of inductor L1. A Gate terminal of MOSFET Q4 may be electrically connected to a twenty sixth pin of integrated chip U3, another terminal of capacitor C21, and a terminal of resistor R23. Another terminal of resistor R23 may be electrically connected to a twenty fifth pin of integrated chip U3. A terminal of capacitor C23 may be electrically connected to a twenty fourth pin of integrated chip U3. Another terminal of capacitor C23 may be electrically connected to a terminal of resistor R24. A terminal of capacitor C30, and a twenty second pin of integrated chip U3 may be connected to the Ground.

[0055] A Gate terminal of MOSFET Q6 may be electrically connected to a twenty third pin of integrated chip U3 and a terminal of capacitor C27. A Source terminal of MOSFET Q6 and another terminal of capacitor C27 may be connected to the Ground. Another terminal of resistor R24 may be electrically connected to another terminal of capacitor C30, a terminal of resistor R28, and a twenty first pin of integrated chip U3. Another terminal of resistor R28 may be electrically connected to +3.6V voltage supply. A terminal of resistor R29 may be electrically connected to a twentieth pin of integrated chip U3. Another terminal of resistor R29 may be electrically connected to Source terminal of MOSFET Q5, a terminal of capacitor C18, another terminal of inductor L1, a terminal of resistor R5, a terminal of resistor R7, a terminal of capacitor C24, a terminal of capacitor C28, and a terminal of resistor R32.

[0056] Moreover, a terminal of resistor R30 may be electrically connected to a nineteenth pin of integrated chip U3. Another terminal of resistor R30 may be electrically connected to another terminal of resistor R5, another terminal of resistor R7, another terminal of capacitor C24, a terminal of capacitor C29, a terminal of capacitor C25, a terminal of capacitor C26, a positive terminal of power supply BAT, a terminal of resistor R2, a terminal of resistor R3, a third pin of integrated chip U4.

[0057] Another terminal of capacitor C28 may be electrically connected to another terminal of capacitor C29. Another terminal of capacitor C25, another terminal of capacitor C26, a negative terminal of power supply J8, an output terminal of power supply J10 and power supply J7 may all be electrically connected to Ground.

[0058] A Gate terminal of MOSEFT Q5 may be electrically connected to another terminal of capacitor C18 and a terminal of resistor R31. Another terminal of resistor R31 may be electrically connected to an eighteenth pin of integrated chip U3. Another terminal of resistor R32 may be electrically connected to a seventeenth pin of integrated chip U3. Another terminal of resistor R2 may be electrically connected to another terminal of resistor R3, a first pin of integrated chip U4, and power supply J6. A second pin of integrated chip U4 may be electrically connected to a terminal of resistor R39, and a terminal of resistor R38. Another terminal of resistor R39 may be connected to Ground. Another terminal of resistor R38 may be electrically connected to signal SUN-ISEN, a terminal of capacitor C34 and a positive terminal of diode D8. A negative terminal of diode D8 and another terminal of capacitor C34 may be connected to Ground.

[0059] A terminal of resistor R37 may be electrically connected to signal DATA, while another terminal of resistor R37 may be connected to Base terminal of transistor Q7. A collector terminal of transistor Q7 may be electrically connected to a terminal of resistor R36 and a second pin of power source J2. Another terminal of resistor R36 may be electrically connected to +3.6V voltage source. An emitter terminal of transistor Q7 and a first pin of power source J2 may be connected to the Ground.

[0060] Another terminal of capacitor C8 may be electrically connected to +3.6 voltage source, and a first pin of integrated chip U7. Another terminal of capacitor C8 may be electrically connected to a second pin of integrated chip U7. Signal ACOK may be electrically connected to a third pin of integrated chip U7. Signal LD1 may be electrically connected to a fourth pin of integrated chip U7. Signal LD2 may be electrically connected to a fifth pin of integrated chip U7. Signal LD3 may be electrically connected to a sixth pin of integrated chip U7. Signal LD4 may be electrically connected to a seventh pin of integrated chip U7. Signal IADP may be electrically connected to a tenth pin of integrated chip U7. Signal IDCHG may be electrically connected to an eleventh pin of integrated chip U7. Signal SUN-ISEN may be electrically connected to twelfth pin of integrated chip U7. Signal PRO may be electrically connected to thirteenth pin of integrated chip U7. Signal SDA may be electrically connected to fourteenth pin of integrated chip U7. Signal SCL may be electrically connected to fifteenth pin of integrated chip U7. Signal DATA may be electrically connected to sixteenth pin of integrated chip U7. A terminal of resistor R12 may be electrically connected to a ninth pin of integrated chip U7. A terminal of resistor R10, a terminal of capacitor C11, and another terminal of resistor R10 may be electrically connected to power source BAT. Another terminal of resistor R12 and another terminal of capacitor C11 may be connected to the Ground.

[0061] On the other hand, the +3.6V voltage source may be connected to a positive terminal of light emitting diode LLD3, a position terminal of light emitting diode LD4, a positive terminal of light emitting diode LD5, and a positive terminal of light emitting diode LD6. A negative terminal of light emitting diode LD3 may be electrically connected to a terminal of resistor R16, while another terminal of resistor R16 may be electrically connected to signal LD1. A negative terminal of light emitting diode LD4 may be electrically connected to a terminal of resistor R17, while another terminal of resistor R17 may be electrically connected to signal LD2. A negative terminal of light emitting diode LD5 may be electrically connected to a terminal of resistor R18, while another terminal of resistor R18 may be electrically connected to signal LD3. Resistor R19 may have one terminal electrically connected to light emitting diode LD6, and another terminal electrically connected to signal LD4. Resistor R21 may have one terminal electrically connected to voltage source VCC, and another terminal electrically connected to a negative terminal of diode D5, a second pin of integrated chip HT7536-1, and a terminal of capacitor C2. Another terminal of capacitor C2 may be connected to the Ground. A positive terminal of diode D5 may be electrically connected to voltage V-OUT.

[0062] A third pin of integrated chip HT7536-1 may be electrically connected to +3.6v voltage source, and a terminal of capacitor C5. Another terminal of capacitor C5 may be connected to the Ground. A first pin of integrated chip HT7536-1 may also be connected to the Ground.

[0063] For the solar charging module 52, a first pin of integrated chip JP1 may be electrically connected to +5V voltage source. A second pin of integrated chip JP2 may be electrically connected to signal SWIM and signal U4-26. A third pin of integrated chip JP3 may be connected to the Ground. A terminal of resistor R2 may be electrically connected to +5V voltage source. Another terminal of resistor R2 may be electrically connected to a fourth pin of integrated chip JP1, a terminal of capacitor C1, and signal RST and signal U4-1. Another terminal of capacitor C1 may be connected to the Ground. A fifth pin of integrated chip JP1 may be electrically connected to signal T and a terminal of resistor R21. Another terminal of resistor R21 may be electrically connected to signal U4-30. A sixth pin of integrated chip JP1 may be electrically connected to signal R and a terminal of resistor R11. Another terminal of resistor R11 may be electrically connected to signal U4-31.

[0064] A first pin of integrated chip P1 may be electrically connected to signal U4-18. A second pin of integrated chip P1 may be electrically connected to signal U4-19. A third pin of integrated chip P1 may be electrically connected to signal U4-20. A fourth pin of integrated chip P1 may be electrically connected to signal U4-21. A fifth pin of integrated chip P1 may be electrically connected to signal U4-22. A sixth pin of integrated chip P1 may be electrically connected to signal U4-23. A seventh pin of integrated chip P1 may be electrically connected to signal U4-24. An eighth pin of integrated chip P1 may be electrically connected to signal U4-2. A ninth pin of integrated chip P1 may be electrically connected to signal U4-3. A tenth pin of integrated chip P1 may be electrically connected to signal U4-7, a third pin of a parallel connected resistors group RP2, and a fourth pin of a parallel connected resistors group RP2. An eleventh pin of integrated chip P1 may be electrically connected to signal U4-8, a first pin of a parallel connected resistors group RP2, and a second pin of a parallel connected resistors group RP2. A twelfth pin of integrated chip P1 may be electrically connected to signal U4-9, a third pin of a parallel connected resistors group RP1, and a fourth pin of a parallel connected resistors group RP1. A thirteenth pin of integrated chip P1 may be electrically connected to signal U4-10, a first pin of a parallel connected resistors group RP1, and a second pin of a parallel connected resistors group RP1.

[0065] A fifth pin, an eighth pin of the parallel connected resistors group RP1 and a fifth pin and an eighth pin of the parallel connected resistors group RP2 are connected to the Ground. A sixth pin and a seventh pin of the parallel connected resistors group RP1, and a sixth pin and a seventh pin of the parallel connected resistors group RP2 may be electrically connected to +5V voltage source.

[0066] A first pin of integrated chip U4 may be electrically connected to signal U4-1. A second pin of integrated chip U4 may be electrically connected to signal U4-2. A third pin of integrated chip U4 may be electrically connected to signal U4-3. A fourth pin of integrated chip U4 may be connected to the Ground. A fifth pin of integrated chip U4 may be electrically connected to a terminal of capacitor C17, while another terminal of capacitor C17 may be connected to the Ground. A sixth pin of integrated chip U4 may be electrically connected to +5V voltage source. A seventh pin of integrated chip U4 may be electrically connected signal U4-7. An eighth pin of integrated chip U4 may be electrically connected signal U4-8. A ninth pin of integrated chip U4 may be electrically connected signal U4-9. A tenth pin of integrated chip U4 may be electrically connected signal U4-10. An eleventh pin and a twelfth pin of integrated chip U4 are not connected. A thirteenth pin of integrated chip U4 may be electrically connected to a terminal of resistor R41, a terminal of resistor R39, and a terminal of capacitor C13. Another terminal of resistor R41 may be electrically connected to power source VA. A terminal of resistor R39 and another terminal of capacitor C13 may be connected to the Ground. A fourteenth pin of integrated chip U4 may be electrically connected to a terminal of capacitor C5, a terminal of resistor R19, and a terminal of variable resistor RT2. Another terminal of resistor R19 may be electrically connected to +5V voltage source. Another terminal of capacitor C5 and another terminal of variable resistor RT2 may be connected to the Ground. A fifteenth pin of integrated chip U4 may be electrically connected to signal U4-15. A sixteenth pin of integrated chip U4 may be electrically connected to signal U4-16. A seventeenth pin of integrated chip U4 may be electrically connected to a terminal of resistor R8 and a terminal of switch K3. Another terminal of resistor R8 may be electrically connected to +5V voltage source. An eighteenth pin of integrated chip U4 may be electrically connected to signal U4-18. A nineteenth pin of integrated chip U4 may be electrically connected to signal U4-19. A twentieth pin of integrated chip U4 may be electrically connected to signal U4-20. A twenty first pin of integrated chip U4 may be electrically connected to signal U4-21. A twenty second pin of integrated chip U4 may be electrically connected to signal U4-22. A twenty third pin of integrated chip U4 may be electrically connected to signal U4-23. A twenty fourth pin of integrated chip U4 may be electrically connected to signal U4-24. A twenty fifth pin of integrated chip U4 may be electrically connected to a terminal of resistor R30. Another terminal of resistor R30 may be electrically connected to +5V voltage source. A twenty sixth pin of integrated chip U4 may be electrically connected to a signal U4-26. A twenty seventh pin of integrated chip U4 may be electrically connected to a signal U4-27. A twenty eighth pin of integrated chip U4 may be electrically connected to a terminal of resistor R49 and a terminal of switch K1. Another terminal of resistor R29 may be electrically connected to +5V voltage source. A twenty ninth pin of integrated chip U4 may be electrically connected to a terminal of resistor R62 and a terminal of switch K2. Another terminal of resistor R62 may be electrically connected to +5V voltage source. Moreover, another terminal of switch K1, switch K2 and switch K3 may be connected to the Ground. A thirtieth pin of integrated chip U4 may be electrically connected to signal U4-30. A thirtieth first pin of integrated chip U4 may be electrically connected to signal U4-31. A thirtieth second pin of integrated chip U4 may be electrically connected to signal U4-32.

[0067] A terminal of resistor R46 may be electrically connected to signal U4-16, a terminal of resistor C12, and a terminal of resistor R40. Another terminal of resistor R46 and another terminal of capacitor C12 may be connected to the Ground. Another terminal of resistor R40 may be electrically connected to an output of operational amplifier U2B and a terminal of resistor R33. Another terminal of resistor R33 may be electrically connected to an inverting input of operational amplifier U2B and a terminal of resistor R29. Another terminal of resistor R29 may be connected to the Ground. A non-inverting input of operational amplifier U2B may be electrically connected to a positive terminal of diode D4, a terminal of capacitor C10, a terminal of resistor R22, and a terminal of resistor R27. A negative terminal of diode D4, another terminal of capacitor C10, another terminal of resistor R22, and another terminal of resistor R27 may be connected to the Ground. A terminal of resistor R37 may be electrically connected to signal U4-32 and a terminal of resistor R34. Another terminal of resistor R37 may be electrically connected to voltage source VB. Another terminal of resistor R34 may be electrically connected to a base terminal of transistor Q7. A collector terminal of transistor Q7 may be electrically connected to a terminal of resistor R42, and Gate terminal of MOSFET UA3. Another terminal of resistor R42 may be electrically connected to voltage source VB. A drain terminal of MOSFET UA3 may be connected to the Ground. A source terminal of MOSFET UA3 and an emitter terminal of transistor Q7 may be connected to the Ground. A positive terminal of diode D1 may be electrically connected to voltage source VA. A negative terminal of diode D1 may be electrically connected to a terminal of resistor R1, a terminal of resistor R3, and a collector terminal of transistor Q1. Another terminal of resistor R1 may be electrically connected to another terminal of resistor R3, a base terminal of transistor Q1 and a negative terminal of Zener diode ZD1. A positive terminal of Zener diode ZD1 may be connected to the Ground. An emitter terminal of transistor Q1 may be electrically connected to a positive terminal of electrolytic capacitor C4, a terminal of capacitor C11, a voltage source VB, a terminal of resistor R12, and a collector terminal of transistor Q5. A negative terminal of electrolytic capacitor C4 and another terminal of capacitor C11 may be connected to the Ground.

[0068] Another terminal of resistor R12 may be electrically connected to a base terminal of transistor Q5, a negative terminal of Zener diode U1, a terminal of resistor R15, and a terminal of resistor R16. A positive terminal of Zener diode U1 and another terminal of resistor R16 may be connected to the Ground. Another terminal of resistor R15 may be electrically connected to an emitter terminal of transistor Q5, a positive terminal of electrolytic capacitor C6, a terminal of capacitor C7, a terminal of capacitor C8, and a +5V voltage source. A negative terminal of electrolytic capacitor C6, another terminal of capacitor C7, and another terminal of capacitor C8 may be connected to the Ground. A positive terminal of diode D5 may be electrically connected to voltage source VA and voltage source TP1. A negative terminal of diode D5 may be electrically connected to a positive terminal of electrolytic capacitor C2, a positive terminal of electrolytic capacitor C3, and a first pin of integrated chip U3.

[0069] A fourth pin of integrated chip U3 may be disconnected. A second pin of integrated chip U3 may be electrically connected to a terminal of inductor L1 and a negative terminal of diode D6. Another terminal of inductor L1 may be electrically connected to a third pin of integrated chip U3, a positive terminal of electrolytic capacitor C14, a terminal of resistor R55, a terminal of resistor R53, a first pin of integrated chip USB, an eighth pin of integrated chip USB, and voltage source USB_+5V. Another terminal of resistor R55 may be electrically connected to a terminal of resistor R56, a second pin of integrated chip USB and a seventh pin of integrated chip USB. Another terminal of resistor R53 may be electrically connected to a terminal of resistor R52, a third pin of integrated chip USB and a sixth pin of integrated chip USB.

[0070] A negative terminal of electrolytic capacitor C2, a negative terminal of electrolytic capacitor C3, a fifth pin of integrated chip U3, a sixth pin of integrated chip U3, a seventh pin of integrated chip U3, an eighth pin of integrated chip U3, a positive terminal of diode D6, a negative terminal of electrolytic capacitor C14, another terminal of resistor R56, another terminal of resistor R52, a fourth pin of integrated chip USB and a fifth pin of integrated chip USB are connected to the Ground.

[0071] A terminal of resistor R28 may be electrically connected to signal U4-15. Another terminal of resistor R28 may be electrically connected to a terminal of resistor R26, a terminal of resistor R25, a terminal of capacitor C9, and a terminal of resistor R23. Another terminal of resistor R26 may be electrically connected to +5V voltage source. Another terminal of resistor R25 and another terminal of capacitor C9 may be connected to the Ground. Another terminal of resistor R23 may be electrically connected to a terminal of resistor R9, a terminal of resistor R47, a collector terminal of transistor Q3, a terminal of variable resistor MOV1, a positive terminal of Zener diode ZD2, a terminal of resistor R4, a Source terminal of MOSFET UA1, and a second pin of integrated chip COM1.

[0072] Another terminal of resistor R9 may be electrically connected to a terminal of resistor R7, a terminal of resistor R13, a positive terminal of diode D3, and a base terminal of transistor Q3. A negative terminal of diode D3 may be electrically connected to an emitter terminal of transistor Q3, a negative terminal of Zener diode ZD2, and a gate terminal of MOSFET UA1. Another terminal of resistor R7 may be electrically connected to another terminal of resistor R13 and a collector terminal of transistor Q2.

[0073] A positive terminal of diode D2 may be electrically connected to voltage source VA. A negative terminal of diode D2 may be electrically connected to an emitter terminal of transistor Q2 and a terminal of resistor R10. Another terminal of resistor R10 may be electrically connected to a terminal of resistor R14 and a base terminal of resistor Q2. Another terminal of resistor R14 may be electrically connected to a collector terminal of transistor Q4. A gate terminal of transistor Q4 may be electrically connected to a terminal of resistor R17 and a terminal of resistor R18. Another terminal of resistor R18 may be electrically connected to signal U4-27. Another terminal of resistor R17 and an emitter terminal of transistor Q4 may be connected to the Ground.

[0074] A first pin of integrated chip COM1, a third pin of integrated chip COM1, and a fifth pin of integrated chip COM1 may be electrically connected to voltage source VA. A fourth pin of integrated chip COM1 and a sixth pin of integrated chip COM1 may be connected to the Ground.

[0075] A drain terminal of MOSFET UA1 may be electrically connected to a drain terminal of MOSFET UA2. A source terminal of MOSFET UA2 and a terminal of resistor R24 may be connected to the Ground. A gate terminal of MOSFET UA2 may be electrically connected to another terminal of resistor R24, and a terminal of resistor R20. Another terminal of resistor R20 may be electrically connected to an output of operational amplifier U2A. A positive power input of the operational amplifier U2A may be electrically connected to voltage source VB. A negative power input of operational amplifier U2A may be connected to the Ground. An inverting input of operational amplifier U2A may be electrically connected to another terminal of resistor R47, a terminal of resistor R44, and a terminal of resistor R45. Another terminal of resistor R44 may be electrically connected to +5V voltage source. Another terminal of resistor R45 may be connected to the Ground. A non-inverting input of operational amplifier U2A may be electrically connected to a terminal of resistor R38 and a terminal of resistor R35. Another terminal of resistor R38 may be electrically connected to +5V voltage source. Another terminal of resistor R35 may be electrically connected to a terminal of resistor R36. Another terminal of resistor R36 may be connected to the Ground.

[0076] The charging control module 51 may be arranged to control and manage charging of the rechargeable battery pack 40. For example, when an input voltage is 12V or 24V, the integrated chip HT7536-1, integrated chip U3, integrated chip U4 and integrated chip U7 may be configured to discharge and charge the rechargeable battery pack 40 by using 6A current. The integrated chip HT7536-1, integrated chip U3, integrated chip U4 and integrated chip U7 may also be configured to protect overcharging, over-discharging or prevent short circuit of the rechargeable battery pack 40. Moreover, the integrated chip HT7536-1, integrated chip U3, integrated chip U4 and integrated chip U7 may also be configured to protect the battery of the vehicle when the present invention is electrically connected to the vehicle's rechargeable battery.

[0077] The solar charging module 52 may be configured to control and manage charging of the solar battery 62 by employing maximum voltage of 55V and charging current of 10A. Integrated chip JP1, integrated chip P1, integrated chip U4, integrated chip U3, integrated chip USB and integrated chip COM1 may be configured and programed to manage Pulse Width Modulation (PMW) charging cycles.

[0078] On the other hand, Zener diode ZD1, Zener diode ZD2, Zener diode U1, transistor Q1, transistor Q2, transistor Q3, transistor Q4, transistor Q5 and transistor Q7 may be utilized to prevent current overflow and short circuit so as to accomplish open circuit protection and reverse protection. MOSFET UA1, MOSEFT UA2, MOSFET UA3, resistors group RP1 and resistors group RP2 may be utilized to create a backflow prevention circuit.

[0079] The energy management module 53 may be configured to allocate the optimal voltage to the compressor 32. The central control unit 50 may be configured to accomplish uninterruptible power supply (UPS) so that it provides near-instantaneous protection from input power interruptions to the compressor 32 and other components of the cooling mechanism 30. According to the preferred embodiment of the present invention, the preferred mode of power supply is through an external DC power input. An adapter may be utilized to convert an external AC power supply into a DC power supply. When both an external DC power input and the rechargeable battery pack 40 are connected to the portable refrigerator, the central control unit 50 may first allocate the power from the external DC power supply to operate the compressor 32 and other components of the portable refrigerator. When the rechargeable battery pack 40 needs recharging, the central control unit 50 may be configured to allocate an optimal amount of power to recharge the rechargeable battery pack 40 and at the same time to keep operating the compressor 32.

[0080] Thus, the charging control module 51, the solar charging module 52 and the energy management module 53 may allocate an optimal amount of electrical power to the cooling mechanism 30 and the rechargeable battery pack 40. The cooling mechanism 30 may have a priority in allocation of electrical power. When the rechargeable battery pack 40 has insufficient battery level or power, the central control unit 50 may command charging of the rechargeable battery pack 40.

[0081] Moreover, when the rechargeable battery pack 40 is not connected to the central control unit 50, the portable refrigerator may also be powered by connecting it to an external power supply, such as an external DC power supply typically found in a vehicle, or the solar panel 62.

[0082] The present invention, while illustrated and described in terms of a preferred embodiment and several alternatives, is not limited to the particular description contained in this specification.

Claims

1. A portable refrigerator, comprising:

a main housing (10) having an accommodating cavity (11) for storing at least one item, and a power compartment (12);

a refrigerator cover (20) provided on said main housing (10) for selectively closing said accommodating cavity (11);

a cooling mechanism (30) which is supported by said main housing (10) and comprises a plurality of heat exchanging tubes (31), a compressor (32), an evaporator (33) connected to said compressor (32) through at least one of said heat exchanging tubes (31), and a condenser (34) connected to said evaporator (33) and said compressor (32) through at least one of said heat exchanging tubes (31);

a rechargeable battery pack (40) detachably attached on said power compartment (12) of said main housing (10), said rechargeable battery pack being adapted for connecting to a power source;

a central control unit (50) supported in said main housing (10) and electrically connected to said rechargeable battery pack (40) and said cooling mechanism (30) for centrally controlling an operation of said cooling mechanism (30), wherein a predetermined amount of refrigerant is arranged to controllably pass through said heat exchanging tubes (31), said condenser (34), said evaporator (33) and said compressor (32) for extracting heat from said accommodating cavity (11);

wherein the rechargeable battery pack (40) comprises : a battery housing (41), a battery core (42) received in said battery housing (41), and a locking arrangement (43), said battery housing (41) having a front battery surface (411), a rear battery surface (412), two side battery surfaces (413), a top battery surface (414) and a bottom battery surface (415), said locking arrangement (43) being operatively provided on said battery housing (41) for allowing said battery housing (41) to be selectively locked and detached from said power compartment (12);

the portable refrigerator being characterized in that the refrigerator cover (20) further comprises a frictional member (22) configured to have a greater frictional force than other parts of said refrigerator cover (20) for retaining external items on said frictional member (22) and in that the locking arrangement (43) of the rechargeable battery pack (40) further comprises a first actuating member (431), a first resilient element (433) mounted on said first actuating member (431) to selectively exert a biasing force thereto, and a plurality of through passage holes (435) formed on said battery housing (41), said first actuating member (431) being arranged to selectively and partially pass through said corresponding through passage holes (435), said first actuating member (431) having a first locking latch (4311), a second locking latch (4312), and a first depressing member (4313) positioned between said first locking latch (4311) and said second locking latch (4312), said first resilient element (433) being arranged to normally exert a biasing force against said first actuating member (431) so as to drive said first locking latch (4311), said second locking latch (4312) and said first depressing member (4313) to normally expose out of said battery housing (41) through said corresponding through passage holes (435), said battery housing (41) being divided into a front thicker portion (418) and a rear thinner portion (419) so that a vertical height of the front thicker portion (418) is greater than that of the rear thinner portion (419), said bottom battery surface (415) of said battery housing (41) being divided into a front section (4151), a rear section (4152) and a biasing surface (4153) as a boundary surface between said front section (4151) and said rear section (4152), wherein said front section (4151) is formed as said bottom surface of said front thicker portion (418) of said battery housing (41), while said rear section (4152) is formed as said bottom surface of said rear thinner portion (419).

2. The portable refrigerator, as recited in claim 1, wherein said main housing (10) comprises a front wall (141), a rear wall (142), and two side walls (143), wherein said accommodating cavity (11) is formed as a space surrounded by said front wall (141), said rear wall (142) and said side walls (143), said main housing (10) further having an access opening (17) as an opening of said accommodating cavity (11).

3. The portable refrigerator, as recited in claim 2, wherein said main housing (10) further comprises a first side peripheral rim (103), a second side peripheral rim (104) and a rear peripheral rim (105) upwardly extended from an outer surface of said two side walls (143) and said rear wall (142) respectively for connecting to said refrigerator cover (20), said access opening (17) being formed at a position below said first side peripheral rim (103), said second side peripheral rim (104) and said rear peripheral rim (105) to define a cover seat (106) as a space on top of said two side walls (143), said rear wall (142) and said front wall (141) and surrounded by said first side peripheral rim (103), said second side peripheral rim (104) and said rear peripheral rim (105).

4. The portable refrigerator, as recited in claim 3, wherein said refrigerator cover (20) is detachably attached on said main housing (10) to selectively close said access opening (17), said refrigerator cover (20) comprising a cover body (21) having a top surface (211), a bottom surface (212), a first side surface (213) and a second side surface (214), said cover body (21) having at least one indention (215) formed on said top surface (211).

5. The portable refrigerator, as recited in claim 4, wherein said refrigerator cover (20) further comprises a first connecting member (23) and a second connecting member (24) extended from said first side surface (213) and said second side surface (214) of said cover body (21) respectively for pivotally and detachably connecting to said main housing (10).

6. The portable refrigerator, as recited in claim 5, wherein said second connecting member (24) has a quadrilateral cross-sectional shape, said main housing (10) further having a first pivotal slot (101) and a second pivotal slot (102) formed on said first side peripheral rim (103) and said second side peripheral rim (104) respectively, wherein said first connecting member (23) and said second connecting member (24) are arranged to pivotally and detachably connect to said first pivotal slot (101) and said second pivotal slot (102) respectively, said second pivotal slot (102) having a top opening (1041), an enlarged portion (1021) and a contracted extension portion (1022) extended between said enlarged portion (1021) and said top opening (1041), said second connecting member (24) being arranged to pivotally move in said enlarged portion (1021) and to slide along said contracted extension portion (1022) only when said second connecting member (24) aligns with said contracted extension portion (1022).

7. The portable refrigerator, as recited in claim 1, wherein said locking arrangement (43) comprises a second actuating member (432) and a second resilient element (433) mounted on said second actuating member (432) to normally exert a biasing force thereto, said second actuating member (432) is arranged to selectively and partially pass through said corresponding through passage holes (435).

8. The portable refrigerator, as recited in claim 7, wherein said second actuating member (432) has a third locking latch (4321), a fourth locking latch (4322), and a second depressing member (4323) positioned between said third locking latch (4321) and said fourth locking latch (4322), said second resilient element (433) is arranged to normally exert a biasing force against said second actuating member (432) so as to drive said third locking latch (4321), said fourth locking latch (4322) and said second depressing member (4323) to normally and partially expose out of said battery housing (41) through said corresponding through passage holes (435).

9. The portable refrigerator, as recited in claim 1, wherein said battery housing (41) further has a first battery indention (416) indently formed on said front battery surface (411) and said top battery surface (414), wherein one of said through passage holes (435) is formed on a first indention surface (4161) of said first battery indention (416), said first depressing member (4313) being normally pushed to expose out of said battery housing (41) through said corresponding through passage hole (435).

10. The portable refrigerator, as recited in claim 8, wherein said battery housing (41) further has a second battery indention (417) indently formed on said front battery surface (411) and said bottom battery surface (415), wherein one of said through passage holes (435) is formed on a second indention surface (4171) of said second battery indention (417), said second depressing member (4323) being normally pushed to expose out of said battery housing (41) through said corresponding through passage hole (435).

11. The portable refrigerator, as recited in claim 10, wherein said power compartment (12) is surrounded by a top compartment surface (121), a bottom compartment surface (122), a rear compartment surface (123), and two side compartment surfaces (124), said battery housing (41) further having a plurality of securing slots (420) formed on said top battery surface (414) and rear section (4152) of said bottom battery surface (415) respectively, said main housing (10) further comprising a plurality of securing ridges (1224) formed on a top compartment surface (121) and a bottom compartment surface (122) of said power compartment (12) at positions corresponding to said securing slots (420) of said battery housing (41).

12. The portable refrigerator, as recited in claim 1, wherein said battery housing (41) further has a plurality of positioning recesses (401) provided on said bottom battery surface (415) for assisting positioning of said battery housing (41) in said power compartment (12).

13. The portable refrigerator, as recited in claim 11, wherein said battery housing (41) further has a plurality of positioning recesses (401) provided on said bottom battery surface (415) for assisting positioning of said battery housing (41) in said power compartment (12).

14. The portable refrigerator, as recited in claim 13, wherein said bottom compartment surface (122) is divided into a front segment (1221) and a rear segment (1222) wherein a vertical height of said front segment (1221) is lower than that of said rear segment (1222) to form an urging surface as a boundary surface between said front segment (1221) and said rear segment (1222), said main housing (10) may further comprising a plurality of positioning protrusions (1225) formed on said front segment (1221) of said bottom compartment surface (122) at positions corresponding to said positioning recesses (401) of said battery housing (41).

15. The portable refrigerator, as recited in claim 1, further comprising a solar energy arrangement (60) which comprises a solar panel (61) detachably attached on said main housing (10) and electrically connected to said central control unit (50).

16. The portable refrigerator, as recited in claim 1, wherein said central control unit (50) comprises a charging control module (51) and a solar charging module (52) electrically connected to said charging control module (51), said central control unit (50) being configured to provide uninterruptible power supply so as to provide instantaneous protection from input power interruption to said cooling mechanism (30).

Ansprüche

1. Ein tragbarer Kühlschrank, umfassend:

Ein Hauptgehäuse (10) mit einem Aufnahmehohlraum (11) für das Lagern von mindestens einem Element, und ein Stromversorgungsfach (12);

eine Kühlschrank-Abdeckung (20) auf dem Hauptgehäuse (10), um selektiv diesen Aufnahmehohlraum (11) zu schließen;

einen Kühlmechanismus (30), der vom Hauptgehäuse (10) getragen wird und eine Vielzahl von Wärmetauscherrohren (31) umfasst, einen Kompressor (32), einen Verdampfer (33), der mit dem besagten Kompressor (32) über mindestens eines der Wärmetauscherrohre (31) verbunden ist, und einen Kondensator (34), der mit dem Verdampfer (33) und dem Kompressor (32) über mindestens eines der Wärmetauscherrohre (31) verbunden ist;

ein wiederaufladbares Battery Pack (40), das abnehmbar im Stromversorgungsfach (12) des Hauptgehäuses (10) untergebracht ist, das wiederaufladbare Battery Pack ist so angepasst, dass es an einer Stromquelle angeschlossen werden kann;

eine zentrale Steuereinheit (50), die vom Hauptgehäuse (10) getragen wird und elektrisch mit dem wiederaufladbaren Battery Pack (40) und dem Kühlmechanismus (30) verbunden werden kann, um zentral einen Betrieb des Kühlmechanismus (30) regeln zu können, wobei eine vorbestimmte Menge an Kühlmittel so angeordnet ist, dass es regelbar durch die Wärmetauscherrohre (31), den Kondensator (34), den Verdampfer (33) und den Kompressor (32) fließt, um Wärme aus dem Aufnahmehohlraum (11) abzuleiten;

wobei das wiederaufladbare Battery Pack (40) Folgendes umfasst: ein Batteriegehäuse (41), einen Batterie-Kern (42), der in dem Batteriegehäuse (41) untergebracht ist, und eine Verriegelungsanordnung (43), das Batteriegehäuse (41) hat eine Batterie-Vorderseite (411), eine Batterie-Rückseite (412), zwei Batterie-Seitenflächen (413), eine Batterie-Oberseite (414) und eine Batterie-Unterseite (415), die Verriegelungsanordnung (43) ist betriebsbereit am Batteriegehäuse (41) angebracht, damit das Batteriegehäuse (41) selektiv im Stromversorgungsfach (12) verriegelt und wieder entnommen werden kann;

der tragbare Kühlschrank ist dadurch gekennzeichnet, dass die Kühlschrank-Abdeckung (20) ferner ein Reibungsteil (22) umfasst, dass so konfiguriert ist, dass es eine größere Reibungskraft hat als andere Teile der Kühlschrank-Abdeckung (20), um externe Elemente auf dem Reibungsteil (22) zu halten, und dadurch gekennzeichnet, dass die Verriegelungsanordnung (43) des wiederaufladbaren Battery Pack (40) ferner Folgendes umfasst:

Ein Betätigungsteil (431), ein erstes Federungselement (433), befestigt an dem ersten Betätigungsteil (431), um selektiv eine Vorspannkraft darauf auszuüben, und eine Vielzahl von Durchgangsöffnungen (435), die am Batteriegehäuse (41) gebildet sind, das erste Betätigungsteil (431) ist so angeordnet, dass es selektiv und partiell durch die entsprechenden Durchgangsöffnungen (435) verläuft, das erste Betätigungsteil (431) hat einen ersten Verschlussriegel (4311), einen zweiten Verschlussriegel (4312) und ein erstes Niederdrückteil (4313), das zwischen dem ersten Verschlussriegel (4311) und dem zweiten Verschlussriegel (4312) platziert ist, das erste Federungselement (433) ist so angeordnet, dass es normalerweise eine Vorspannkraft auf das erste Betätigungsteil (431) ausübt, um den ersten Verschlussriegel (4311), den zweiten Verschlussriegel (4312) und das erste Niederdrückteil (4313) anzutreiben, um normal aus dem Batteriegehäuse (41) durch die entsprechenden Durchgangsöffnungen (435) auszutreten, das Batteriegehäuse (41) ist in einen dickeren Vorderabschnitt (418) und einen dünneren Hinterabschnitt (419) unterteilt, so dass eine vertikale Höhe des dickeren Vorderabschnitts (418) größer ist als die des dünneren Hinterabschnitts (419),

die Batterie-Unterseite (415) des Batteriegehäuses (41) ist in einen Vorderabschnitt (4151), einen Hinterabschnitt (4152) und eine Vorspannfläche (4153) als Grenzfläche zwischen dem Vorderabschnitt (4151) und dem Hinterabschnitt (4152) unterteilt, wobei der Vorderabschnitt (4151) als Grundfläche des dickeren Vorderabschnitts (418) des Batteriegehäuses (41) geformt ist, während der Hinterabschnitt (4152) als Grundfläche des dünneren Hinterabschnitts (419) geformt ist.

2. Der tragbare Kühlschrank nach Anspruch 1, wobei das Hauptgehäuse (10) eine Vorderwand (141), eine Rückwand (142) und zwei Seitenwände (143) umfasst, wobei der Aufnahmehohlraum (11) als ein von der Vorderwand (141), der Rückwand (142) und den Seitenwänden (143) umgebener Raum geformt ist, das Hauptgehäuse (10) hat ferner eine Zugangsöffnung (17) als Öffnung des Aufnahmehohlraums (11).

3. Der tragbare Kühlschrank nach Anspruch 2, wobei das Hauptgehäuse (10) ferner eine erste Seitenrandzone (103), eine zweite Seitenrandzone (104) und
eine Rückseitenrandzone (105) umfasst, die von einer Außenfläche der beiden Seitenwände (143) bzw. der Rückwand (142) nach oben verlaufen, um die Kühlschrankabdeckung (20) zu verbinden, die Zugangsöffnung (17) ist in einer Position unter der ersten Seitenrandzone (103), der zweiten Seitenrandzone (104) und der Rückseitenrandzone (105) geformt, um eine Abdeckungsaufnahme (106) als einen Raum auf den beiden Seitenwänden (143), der Rückwand (142) und der Vorderwand (141) und umgeben von der ersten Seitenrandzone (103), der zweiten Seitenrandzone (104) und der Rückseitenrandzone (105) zu definieren.

4. Der tragbare Kühlschrank nach Anspruch 3, wobei die Kühlschrankabdeckung (20) abnehmbar an dem Hauptgehäuse (10) befestigt ist, um selektiv die Zugangsöffnung (17) zu schließen, die Kühlschrankabdeckung (20) umfasst ein Abdeckungsgehäuse (21) mit einer Oberfläche (211), einer Grundfläche (212), einer ersten Seitenfläche (213) und einer zweiten Seitenfläche (214), das Abdeckungsgehäuse (21) hat mindestens eine Einkerbung (215), die an der Oberfläche (211) geformt ist.

5. Der tragbare Kühlschrank nach Anspruch 4, wobei die Kühlschrankabdeckung (20) ferner ein erstes Verbindungsteil (23) und ein zweites Verbindungsteil (24) umfasst, die sich von der ersten Seitenfläche (213) bzw. der zweiten Seitenfläche (214) des Abdeckungsgehäuses (21) erstrecken, um das Hauptgehäuse (10) drehbar und abnehmbar zu verbinden.

6. Der tragbare Kühlschrank nach Anspruch 5, wobei das zweite Verbindungsteil (24) eine vierseitige Querschnittsform aufweist, das Hauptgehäuse (10) hat ferner eine erste drehbare Nut (101) und eine zweite drehbare Nut (102), die an der ersten Seitenrandzone (103) bzw. der zweiten Seitenrandzone (104) geformt sind, wobei das erste Verbindungsteil (23) und das zweite Verbindungsteil (24) so angeordnet sind, dass sie sich drehbar und abnehmbar mit der ersten drehbaren Nut (101) bzw. der zweiten drehbaren Nut (102) verbinden, die zweite drehbare Nut (102) mit einer oberen Öffnung (1041), einem aufgeweiteten Abschnitt (1021) und einem verengten Erweiterungsabschnitt (1022), der zwischen dem aufgeweiteten Abschnitt (1021) und der oberen Öffnung (1041) verläuft, das zweite Verbindungsteil (24) ist so angeordnet, dass es sich drehbar in dem aufgeweiteten Abschnitt (1021) bewegt und nur entlang des verengten Erweiterungsabschnitts (1022) gleitet, wenn sich das zweite Verbindungsteil (24) an dem verengten Erweiterungsabschnitt (1022) ausrichtet.

7. Der tragbare Kühlschrank nach Anspruch 1, wobei die Verriegelungsanordnung (43) ein zweites Betätigungsteil (432) und ein zweites Federungselement (433) umfasst, die an dem zweiten Betätigungsteil (432) befestigt sind, um normalerweise eine Vorspannkraft darauf auszuüben, das zweite Betätigungsteil (432) ist so angeordnet, dass es selektiv und partiell durch die entsprechenden Durchgangsöffnungen (435) verläuft.

8. Der tragbare Kühlschrank nach Anspruch 7, wobei das zweite Betätigungsteil (432) einen dritten Verschlussriegel (4321), einen vierten Verschlussriegel (4322) und ein zweites Niederdrückteil (4323) aufweist, das zwischen dem dritten Verschlussriegel (4321) und dem vierten Verschlussriegel (4322) positioniert ist, das zweite Federungselement (433) ist so angeordnet, dass es normal eine Vorspannkraft auf das zweite Betätigungsteil (432) ausübt, um den dritten Verschlussriegel (4321), den vierten Verschlussriegel (4322) und das zweite Niederdrückteil (4323) anzutreiben, und normal und partiell aus dem Batteriegehäuse (41) durch die entsprechenden Durchgangsöffnungen (435) austritt.

9. Der tragbare Kühlschrank nach Anspruch 1, wobei das Batteriegehäuse (41) ferner eine erste Batterieeinkerbung (416) hat, die als Kerbe an der Batterie-Vorderseite 30 (411) und der Batterie-Oberseite (414) geformt ist, wobei eine der Durchgangsöffnungen (435) an einer ersten Einkerbungsfläche (4161) der ersten Batterie-Einkerbung (416) geformt ist, das erste Niederdrückteil (4313) wird normal so gedrückt, dass es aus dem Batteriegehäuse (41) durch die entsprechende Durchgangsöffnung (435) austritt.

10. Der tragbare Kühlschrank nach Anspruch 8, wobei das Batteriegehäuse (41) ferner eine zweite Batterieeinkerbung (417) hat, die als Kerbe an der Batterie-Vorderseite (411) und der Batterie-Unterseite (415) geformt ist, wobei eine der Durchgangsöffnungen (435) an einer zweiten Einkerbungsfläche (4171) der zweiten Batterie-Einkerbung (417) geformt ist, das zweite Niederdrückteil (4323) wird normal so gedrückt, dass es aus dem Batteriegehäuse (41) durch die entsprechende Durchgangsöffnung (435) austritt.

11. Der tragbare Kühlschrank nach Anspruch 10, wobei das Stromversorgungsfach (12) von einer oberen Kammeroberfläche (121), einer unteren Kammeroberfläche (122), einer hinteren Kammeroberfläche (123) und zwei seitlichen Kammeroberflächen (124) umgeben ist, das Batteriegehäuse (41) hat ferner eine Vielzahl von Sicherungsschlitzen (420), die auf der oberen Batterie-Oberfläche (414) bzw. am hinteren Abschnitt (4152) der unteren Batterie-Oberfläche (415) geformt sind, das Hauptgehäuse (10) umfasst ferner eine Vielzahl von Sicherungsrippen (1224), die an einer oberen Kammeroberfläche (121) und einer unteren Kammeroberfläche (122) des Stromversorgungsfachs (12) an Stellen geformt sind, die den Sicherungsschlitzen (420) des Batteriegehäuses (41) entsprechen.

12. Der tragbare Kühlschrank nach Anspruch 1, wobei das Batteriegehäuse (41) ferner eine Vielzahl von Positionierungskerben (401) an der unteren Batterie-Oberfläche (415) aufweist, um die Positionierung des Batteriegehäuses (41) in dem Stromversorgungsfach (12) zu unterstützen.

13. Der tragbare Kühlschrank nach Anspruch 11, wobei das Batteriegehäuse (41) ferner eine Vielzahl von Positionierungskerben (401) an der unteren Batterie-Oberfläche (415) aufweist, um die Positionierung des Batteriegehäuses (41) im Stromversorgungsfach (12) zu unterstützen.

14. Der tragbare Kühlschrank nach Anspruch 13, wobei die untere Kammerfläche (122) in ein vorderes Segment (1221) und ein hinteres Segment (1222) unterteilt ist, wobei eine vertikale Höhe des vorderen Segments (1221) niedriger ist als das hintere Segment (1222), um eine gedrängte Oberfläche als Grenzfläche zwischen dem vorderen Segment (1221) und dem hinteren Segment (1222) zu formen, das Hauptgehäuse (10) kann ferner eine Vielzahl von Positionierungsvorsprüngen (1225) umfassen, die am vorderen Segment (1221) der unteren Kammerfläche (122) an Stellen geformt sind, die den Positionierungskerben (401) des Batteriegehäuses (41) entsprechen.

15. Der tragbare Kühlschrank nach Anspruch 1, ferner umfassend eine Solarenergieanordnung (60), die ein Solarmodul (61) umfasst, das abnehmbar am Hauptgehäuse (10) angebracht und elektrisch an die zentrale Steuereinheit (50) angeschlossen ist.

16. Der tragbare Kühlschrank nach Anspruch 1, wobei die zentrale Steuereinheit (50) ein Ladesteuermodul (51) und ein Solarlademodul (52) umfasst, das elektrisch an das Ladesteuermodul (51) angeschlossen ist, die zentrale Steuereinheit (50) ist so konfiguriert, dass sie eine ununterbrochene Stromversorgung liefert, um einen unmittelbaren Schutz vor einer Eingangsstromunterbrechung am Kühlmechanismus (30) bereitzustellen.

Revendications

1. Réfrigérateur portatif comprenant :

une enceinte principale (10) présentant une cavité de réception (11) destinée à stocker au moins un article et un compartiment d'alimentation (12) ;

un couvercle de réfrigérateur (20) prévu sur ladite enceinte principale (10) destiné à fermer de manière sélective ladite cavité de réception (11) ;

un mécanisme de refroidissement (30) qui est supporté par ladite enceinte principale (10) et qui comprend une pluralité de tubes d'échange de chaleur (31), un compresseur (32), un évaporateur (33) relié audit compresseur (32) par l'intermédiaire d'au moins un desdits tubes d'échange de chaleur (31) et un condenseur (34) raccordé audit évaporateur (33) et audit compresseur (32) par l'intermédiaire d'au moins un desdits tubes d'échange de chaleur (31) ;

un bloc de batterie rechargeable (40) fixé de manière détachable sur ledit compartiment d'alimentation (12) de ladite enceinte principale (10), ledit bloc de batterie rechargeable étant adapté à être connecté à une source d'alimentation ;

une unité de commande centrale (50) supportée dans ladite enceinte principale (10) et connectée électriquement audit bloc de batterie rechargeable (40) et audit mécanisme de refroidissement (30) pour commander de manière centrale un fonctionnement dudit mécanisme de refroidissement (30), dans lequel une quantité prédéfinie de réfrigérant est destinée à passer de manière commandable à travers lesdits tubes d'échange de chaleur (31), ledit condenseur (34), ledit évaporateur (33) et ledit compresseur (32) destinés à extraire la chaleur de ladite cavité de réception (11) ;

dans lequel le bloc de batterie rechargeable (40) comprend : un logement de batterie (41), une batterie principale (42) reçue dans ledit logement de batterie (41) et un dispositif de verrouillage (43), ledit logement de batterie (41) présentant une surface de batterie avant (411), une surface de batterie arrière (412), deux surfaces de batterie latérales (413), une surface de batterie supérieure (414) et une surface de batterie inférieure (415), ledit dispositif de verrouillage (43) étant situé de manière fonctionnelle sur ledit logement de batterie (41) pour permettre audit logement de batterie (41) d'être de manière sélective verrouillé et détaché dudit compartiment d'alimentation (12) ;

le réfrigérateur portatif étant caractérisé en ce que le couvercle de réfrigérateur (20) comprend en outre un élément de friction (22) conçu pour présenter une force de faction plus grande que d'autres parties dudit couvercle de réfrigérateur (20) pour retenir des articles externes sur ledit élément de friction (22) et en ce que le dispositif de verrouillage (43) du bloc de batterie rechargeable (40) comprend en outre :

un premier élément d'actionnement (431), un premier élément élastique (433) monté sur ledit premier élément d'actionnement (431) pour exercer de manière sélective une force de sollicitation sur celui-ci et une pluralité de trous de passage traversants (435) formés sur ledit logement de batterie (41), ledit premier élément d'actionnement (431) étant ménagé pour passer de manière sélective et partiellement à travers lesdits trous de passage traversants correspondants (435), ledit premier élément d'actionnement (431) présentant un premier verrou de blocage (4311), un deuxième verrou de blocage (4312), et un premier élément d'enfoncement (4313) positionné entre ledit premier verrou de blocage (4311) et ledit deuxième verrou de blocage (4312), ledit premier élément élastique (433) étant ménagé pour exercer normalement une force de sollicitation contre ledit premier élément d'actionnement (431) de manière à entraîner ledit premier verrou de blocage (4311), ledit deuxième verrou de blocage (4312) et ledit premier élément d'enfoncement (4313) pour qu'ils soient normalement exposés hors dudit logement de batterie (41) à travers lesdits trous de passage traversants correspondants (435), ledit logement de batterie (41) étant divisé en une partie avant plus épaisse (418) et une partie arrière plus mince (419) de manière à ce qu'une hauteur verticale de la partie avant plus épaisse (418) soit supérieure à celle de la partie arrière plus mince (419),

ladite surface de batterie inférieure (415) dudit logement de batterie (41) étant divisée en une section avant (4151), une section arrière (4152) et une surface de sollicitation (4153) comme surface limite entre ladite section avant (4151) et ladite section arrière (4152), dans lequel ladite section avant (4151) est formée en tant que ladite surface inférieure de ladite partie avant plus épaisse (418) dudit logement de batterie (41), pendant que ladite section arrière (4152) est formée comme ladite surface inférieure de ladite partie arrière plus mince (419).

2. Réfrigérateur portatif, tel que décrit dans la revendication 1, dans lequel ladite enceinte principale (10) comprend une paroi avant (141), une paroi arrière (142) et deux parois latérales (143), dans lequel ladite cavité de réception (11) est formée comme un espace entouré par ladite paroi avant (141), ladite paroi arrière (142) et lesdites parois latérales (143), ladite enceinte principale (10) présentant en outre une ouverture d'accès (17) comme ouverture de ladite cavité de réception (11).

3. Réfrigérateur portatif, tel que décrit dans la revendication 2, dans lequel ladite enceinte principale (10) comprend en outre un premier bord périphérique latéral (103), un second bord périphérique latéral (104) et un bord périphérique arrière (105) s'étendant vers le haut depuis une surface extérieure desdites deux parois latérales (143) et de ladite paroi arrière (142) respectivement pour se raccorder audit couvercle de réfrigérateur (20), ladite ouverture d'accès (17) étant formée à une position en dessous dudit premier bord périphérique latéral (103), dudit second bord périphérique latéral (104) et dudit bord périphérique arrière (105) pour définir un siège de couvercle (106) comme un espace sur le dessus desdites deux parois latérales (143), de ladite paroi arrière (142) et de ladite paroi avant (141) et entouré par ledit premier bord périphérique latéral (103), ledit second bord périphérique latéral (104) et ledit bord périphérique arrière (105).

4. Réfrigérateur portatif, tel que décrit dans la revendication 3, dans lequel ledit couvercle de réfrigérateur (20) est fixé de manière détachable sur ladite enceinte principale (10) pour fermer de manière sélective ladite ouverture d'accès (17), ledit couvercle de réfrigérateur (20) comprenant un corps de couvercle (21) présentant une surface supérieure (211), une surface inférieure (212), une première surface latérale (213) et une seconde surface latérale (214), ledit corps de couvercle (21) présentant au moins une indentation (215) formée sur ladite surface supérieure (211).

5. Réfrigérateur portatif, tel que décrit dans la revendication 4, dans lequel ledit couvercle de réfrigérateur (20) comprend en outre un premier élément de raccordement (23) et un second élément de raccordement (24) s'étendant depuis ladite première surface latérale (213) et ladite seconde surface latérale (214) dudit corps de couvercle (21) respectivement pour le raccordement de manière pivotante et détachable de ladite enceinte principale (10).

6. Réfrigérateur portatif, tel que décrit dans la revendication 5, dans lequel ledit second élément de raccordement (24) présente une forme de section transversale quadrilatérale, ladite enceinte principale (10) présentant en outre une première encoche de pivotement (101) et une seconde encoche de pivotement (102) formées sur ledit premier bord périphérique latéral (103) et ledit second bord périphérique latéral (104) respectivement, dans lequel ledit premier élément de raccordement (23) et ledit second élément de raccordement (24) sont ménagés pour se raccorder de manière pivotante et détachable à ladite première encoche de pivotement (101) et à ladite seconde encoche de pivotement (102), respectivement, ladite seconde encoche de pivotement (102) présentant une ouverture supérieure (1041), une partie élargie (1021) et une partie d'extension contractée (1022) étendue entre ladite partie élargie (1021) et ladite ouverture supérieure (1041), ledit second élément de raccordement (24) étant ménage pour se déplacer de manière pivotante dans ladite partie élargie (1021) et pour glisser le long de ladite partie d'extension contractée (1022) uniquement lorsque ledit second élément de raccordement (24) s'aligne avec ladite partie d'extension contractée (1022).

7. Réfrigérateur portatif, tel que décrit dans la revendication 1, dans lequel ledit dispositif de verrouillage (43) comprend un second élément d'actionnement (432) et un second élément élastique (433) monté sur ledit second élément d'actionnement (432) pour exercer normalement une force de sollicitation sur celui-ci, ledit second élément d'actionnement (432) est ménagé pour traverser de manière sélective et partiellement à travers lesdits trous de passage traversants correspondants (435).

8. Réfrigérateur portatif, tel que décrit dans la revendication 7, dans lequel ledit second élément d'actionnement (432) présente un troisième verrou de blocage (4321), un quatrième verrou de blocage (4322), et un second élément d'enfoncement (4323) positionné entre ledit troisième verrou de blocage (4321) et ledit quatrième verrou de blocage (4322), ledit second élément élastique (433) est ménagé pour exercer normalement une force de sollicitation contre ledit second élément d'actionnement (432) de manière à entraîner ledit troisième verrou de blocage (4321), ledit quatrième verrou de blocage (4322) et ledit second élément d'enfoncement (4323) pour qu'ils soient normalement et partiellement exposés hors dudit logement de batterie (41) à travers lesdits trous de passage traversants correspondants (435).

9. Réfrigérateur portatif, tel que décrit dans la revendication 1, dans lequel ledit logement de batterie (41) présente en outre une première indentation de batterie (416) formée par indentation sur ladite surface de batterie avant (411) et ladite surface de batterie supérieure (414), dans lequel l'un desdits trous de passage traversants (435) est formé sur une première surface d'indentation (4161) de ladite première indentation de batterie (416), ledit premier élément d'enfoncement (4313) étant normalement poussé pour être exposé hors dudit logement de batterie (41) à travers ledit trou de passage traversant correspondant (435).

10. Réfrigérateur portatif, tel que décrit dans la revendication 8, dans lequel ledit logement de batterie (41) présente en outre une seconde indentation de batterie (417) formée par indentation sur ladite surface de batterie avant (411) et ladite surface de batterie inférieure (415), dans lequel l'un desdits trous de passage traversants (435) est formé sur une seconde surface d'indentation (4171) de ladite seconde indentation de batterie (417), ledit second élément d'enfoncement (4323) étant normalement poussé pour être exposé hors dudit logement de batterie (41) à travers ledit trou de passage traversant correspondant (435).

11. Réfrigérateur portatif, tel que décrit dans la revendication 10, dans lequel ledit compartiment d'alimentation (12) est entouré par une surface de compartiment supérieur (121), une surface de compartiment inférieur (122), une surface de compartiment arrière (123) et deux surfaces de compartiment latéral (124), ledit logement de batterie (41) présentant en outre une pluralité d'encoches de fixation (420) formées sur ladite surface de batterie supérieure (414) et une section arrière (4152) de ladite surface de batterie inférieure (415) respectivement, ladite enceinte principale (10) comprenant en outre une pluralité de nervures de fixation (1224) formées sur une surface de compartiment supérieur (121) et une surface de compartiment inférieur (122) dudit compartiment d'alimentation (12) à des positions correspondant auxdites encoches de fixation (420) dudit logement de batterie (41).

12. Réfrigérateur portatif, tel que décrit dans la revendication 1, dans lequel ledit logement de batterie (41) présente en outre une pluralité d'évidements de positionnement (401) prévus sur ladite surface de batterie inférieure (415) pour aider au positionnement dudit logement de batterie (41) dans ledit compartiment d'alimentation (12).

13. Réfrigérateur portatif, tel que décrit dans la revendication 11, dans lequel ledit logement de batterie (41) présente en outre une pluralité d'évidements de positionnement (401) prévus sur ladite surface de batterie inférieure (415) pour aider au positionnement dudit logement de batterie (41) dans ledit compartiment d'alimentation (12).

14. Réfrigérateur portatif, tel que décrit dans la revendication 13, dans lequel ladite surface du compartiment inférieur (122) est divisée en un segment avant (1221) et un segment arrière (1222) dans lequel une hauteur verticale dudit segment avant (1221) est inférieure à celle dudit segment arrière (1222) pour former une surface de poussée comme une surface limite entre ledit segment avant (1221) et ledit segment arrière (1222), ladite enceinte principale (10) peut en outre comprendre une pluralité de saillies de positionnement (1225) formées sur ledit segment avant (1221) de ladite surface du compartiment inférieur (122) à des positions correspondant auxdits évidements de positionnement (401) dudit logement de batterie (41).

15. Réfrigérateur portatif, tel que décrit dans la revendication 1, comprenant en outre un dispositif d'énergie solaire (60) qui comprend un panneau solaire (61) fixé de manière détachable sur ladite enceinte principale (10) et connecté électriquement à ladite unité de commande centrale (50).

16. Réfrigérateur portatif, tel que décrit dans la revendication 1, dans lequel ladite unité de commande centrale (50) comprend un module de commande de charge (51) et un module de charge solaire (52) connecté électriquement audit module de commande de charge (51), ladite unité de commande centrale (50) étant configurée pour fournir une alimentation électrique ininterrompue de manière à fournir une protection instantanée contre une interruption de l'alimentation d'entrée audit mécanisme de refroidissement (30).

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