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(11) | EP 4 248 779 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
| published in accordance with Art. 153(4) EPC |
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| (54) | VAPORIZER AND ELECTRONIC VAPORIZATION DEVICE |
| (57) This application provides a vaporizer and an electronic vaporization device. The
vaporizer includes an outer housing with a vertical direction and a horizontal direction.
The outer housing is internally provided with: a liquid storage cavity; a liquid absorbing
element in fluid communication with the liquid storage cavity to absorb a liquid substrate;
a first support element, located between the liquid absorbing element and the liquid
storage cavity in the vertical direction, and configured to support the liquid absorbing
element, and define a vaporization chamber at least partially surrounding the liquid
absorbing element; a heating element, configured to heat at least a part of the liquid
substrate of the liquid absorbing element to generate an aerosol and release the aerosol
to the vaporization chamber; and an aerosol output channel, at least partially formed
on the first support element. The first support element is provided with a first protruding
edge extending into the vaporization chamber; and the first protruding edge is constructed
to surround the aerosol output channel, to prevent the liquid substrate from flowing
to the aerosol output channel through a gap between the first support element and
the liquid absorbing element. The first protruding edge prevents the liquid substrate
from flowing to the aerosol output channel along an inner wall of the first support
element. |
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to Chinese Patent Application No. 202011282645.0, entitled "VAPORIZER AND ELECTRONIC VAPORIZATION DEVICE" and filed with the China National Intellectual Property Administration on November 17, 2020, which is incorporated herein by reference in its entirety.
TECHNICAL FIELD
[0002] Embodiments of this application relate to the field of electronic vaporization devices, and in particular, to a vaporizer and an electronic vaporization device.
BACKGROUND
[0003] Tobacco products (such as cigarettes and cigars) bum tobacco during use to produce tobacco smoke. Attempts are made to replace these tobacco-burning products by making products that release compounds without burning.
[0004] An example of this type of products is a heating device that releases compounds by heating rather than burning materials. For example, the materials may be tobacco or other non-tobacco products. These non-tobacco products may include or not include nicotine. In another example, there are aerosol-providing products, for example, the so-called electronic vaporization devices. These devices usually contain a vaporable liquid, and the liquid is heated to vaporize, so as to generate inhalable vapor or an aerosol. Generally, in a known electronic vaporization device, a liquid absorbing element gradually absorbs a liquid substrate and transfers the liquid substrate to a heating element for vaporization to generate an aerosol, and the aerosol is outputted through a vapor output channel to the outside of the device for inhalation. During use of the foregoing known electronic vaporization device, there is a risk that the liquid substrate seeps into the aerosol output channel through a gap between the liquid absorbing element and another component.
SUMMARY
[0005] An embodiment of this application provides a vaporizer, configured to vaporize a liquid substrate to generate an aerosol, and including an outer housing, where the outer housing is internally provided with:
a liquid storage cavity, configured to store a liquid substrate;
a liquid absorbing element, constructed to be in fluid communication with the liquid storage cavity to absorb the liquid substrate;
a first support element, located between the liquid absorbing element and the liquid storage cavity, and configured to at least partially support the liquid absorbing element and at least partially define a vaporization chamber surrounding the liquid absorbing element;
a heating element, combined on the liquid absorbing element, and configured to heat at least a part of the liquid substrate of the liquid absorbing element to generate an aerosol and release the aerosol to the vaporization chamber; and
an aerosol output channel, at least partially formed on the first support element, and configured to output the aerosol in the vaporization chamber, where
the first support element is provided with a first protruding edge extending into the vaporization chamber; and the first protruding edge is constructed to prevent the liquid substrate from flowing to the aerosol output channel through a gap between the first support element and the liquid absorbing element.
[0006] In a preferred implementation, the first protruding edge is constructed to surround the aerosol output channel.
[0007] In a preferred implementation, the first support element is further provided with a holding portion that extends toward the liquid absorbing element and holds the liquid absorbing element.
[0008] In a preferred implementation, a grooved space is formed between the first protruding edge and the holding portion, to collect the liquid substrate flowing to the aerosol output channel through the gap between the first support element and the liquid absorbing element.
[0009] In a preferred implementation, a first capillary groove extending in a horizontal direction is further provided on a surface of the grooved space, to absorb and hold the liquid substrate in the hook-shaped or grooved space by a capillary action.
[0010] In a preferred implementation, the aerosol output channel includes a through hole extending in the first support element in a vertical direction;
the aerosol output channel further includes an air pipe extending in the vertical direction of the outer housing; and
the through hole and the air pipe are coaxially arranged and kept spaced.
[0011] In a preferred implementation, the first support element further includes a second protruding edge extending in a direction away from the vaporization chamber; and the second protruding edge is constructed to surround the through hole, to prevent aerosol condensate generated from an inner wall of the air pipe from flowing to the through hole.
[0012] In a preferred implementation, the first support element further includes a holding space surrounding the second protruding edge, to collect the aerosol condensate generated from the inner wall of the air pipe.
[0013] In a preferred implementation, a second capillary groove in fluid communication with the holding space is further provided on an outer wall of the first support element, to absorb, by a capillary action, the aerosol condensate collected in the holding space.
[0014] In a preferred implementation, the outer housing is further internally provided with:
a second support element, located on a side of the liquid absorbing element away from the first support element in a vertical direction, and at least partially supporting the liquid absorbing element, where the second support element and the first support element define the vaporization chamber.
[0015] In a preferred implementation, one of the first support element and the second support element is rigid and the other is flexible.
[0016] In a preferred implementation, a third capillary groove is further provided on an inner wall of the vaporization chamber defined by the second support element, to absorb aerosol condensate in the vaporization chamber.
[0017] Another embodiment of this application further provides a vaporizer, configured to vaporize a liquid substrate to generate an aerosol, and including an outer housing, where the outer housing is internally provided with:
a liquid storage cavity, configured to store a liquid substrate;
a liquid absorbing element, constructed to be in fluid communication with the liquid storage cavity to absorb the liquid substrate;
a first support element, located between the liquid absorbing element and the liquid storage cavity, and at least partially defining a vaporization chamber surrounding the liquid absorbing element;
a heating element, combined on the liquid absorbing element, and configured to heat at least a part of the liquid substrate of the liquid absorbing element to generate an aerosol and release the aerosol to the vaporization chamber; and
an aerosol output channel, configured to output the aerosol in the vaporization chamber, where the aerosol output channel includes a through hole extending in the first support element in a vertical direction and opposite to the heating element;
the first support element is further provided with a second protruding edge extending in a direction away from the vaporization chamber; and the second protruding edge is constructed to prevent aerosol condensate generated from an inner wall of the aerosol output channel from flowing to the through hole.
[0018] In a preferred implementation, the aerosol output channel further includes an air pipe extending in the vertical direction of the outer housing, and the through hole and the air pipe are arranged kept spaced.
[0019] In a preferred implementation, the second protruding edge is constructed to surround the through hole.
[0020] In a preferred implementation, the first support element further includes a holding space surrounding the second protruding edge, to collect the aerosol condensate generated from the inner wall of the air pipe.
[0021] In a preferred implementation, a second capillary groove in airflow communication with the holding space is further provided on an outer wall of the first support element, to absorb, by a capillary action, the aerosol condensate collected in the holding space.
[0022] In a preferred implementation, the first support element has a window located on the outer wall, and the holding space is in airflow communication with the second capillary groove through the window.
[0023] In a preferred implementation, the outer housing is further internally provided with:
a second support element, located on a side of the liquid absorbing element away from the first support element in a vertical direction, and at least partially supporting the liquid absorbing element, where the second support element and the first support element define the vaporization chamber.
[0024] In a preferred implementation, one of the first support element and the second support element is rigid and the other is flexible.
[0025] An embodiment of this application further provides an electronic vaporization device, including a vaporizer configured to vaporize a liquid substrate to generate an aerosol, and a power supply component supplying power to the vaporizer, where the vaporizer includes the vaporizer described above.
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] One or more embodiments are exemplarily described with reference to the corresponding figures in the accompanying drawings, and the descriptions do not constitute a limitation to the embodiments. Components in the accompanying drawings that have same reference numerals are represented as similar components, and unless otherwise particularly stated, the figures in the accompanying drawings are not drawn to scale.
FIG. 1 is a schematic structural diagram of an electronic vaporization device according to an embodiment of this application;
FIG. 2 is a schematic structural diagram of a vaporizer in FIG. 1 according to an embodiment;
FIG. 3 is a schematic cross-sectional view of the vaporizer in FIG. 2 in a width direction;
FIG. 4 is a schematic exploded view of some components of the vaporizer in FIG. 3 before assembled;
FIG. 5 is a schematic exploded view of a seal element, a vaporization assembly, and a support frame in FIG. 4;
FIG. 6 is a schematic cross-sectional view of the seal element, the vaporization assembly, and the support frame after assembly in FIG. 5;
FIG. 7 is a schematic structural diagram of a vaporizer in FIG. 1 according to another embodiment;
FIG. 8 is a schematic exploded view of parts of the vaporizer in FIG. 7 before assembled;
FIG. 9 is a schematic cross-sectional view of a rigid holder, a vaporization assembly, and a flexible support base after assembly in FIG. 8; and
FIG. 10 is a schematic structural diagram of the rigid holder in FIG. 8 in a three-dimensional view.
DETAILED DESCRIPTION
[0027] For ease of understanding of this application, this application is described in further detail below with reference to the accompanying drawings and specific implementations.
[0028] This application provides an electronic vaporization device. Referring to FIG. 1, the electronic vaporization device includes: a vaporizer 100, configured to store a liquid substrate and vaporize the liquid substrate to generate an aerosol; and a power supply mechanism 200, configured to supply power to the vaporizer 100.
[0029] In an optional implementation, as shown in FIG. 1, the power supply mechanism 200 includes: a receiving cavity 270, provided at an end in a length direction and configured to receive and accommodate at least a part of the vaporizer 100; and first electrical contacts 230, at least partially exposed on a surface of the receiving cavity 270 and configured to be electrically connected to the vaporizer 100 to supply power to the vaporizer 100 when at least a part of the vaporizer 100 is received and accommodated in the power supply mechanism 200.
[0030] According to a preferred implementation shown in FIG. 1, an end portion of the vaporizer 100 opposite to the power supply mechanism 200 in the length direction is provided with second electrical contacts 21, so that when at least a part of the vaporizer 100 is received in the receiving cavity 270, the second electrical contacts 21 form conductivity through being in contact with and abutting against the first electrical contacts 230.
[0031] A seal element 260 is arranged inside the power supply mechanism 200, and at least a part of an internal space of the power supply mechanism 200 is separated through the seal element 260 to form the receiving cavity 270. In the preferred implementation shown in FIG. 1, the seal element 260 is constructed to extend in a cross section direction of the power supply mechanism 200, and is prepared by a flexible material, so as to prevent the liquid substrate seeping from the vaporizer 100 to the receiving cavity 270 from flowing to components such as a controller 220 and a sensor 250 inside the power supply mechanism 200.
[0032] In the preferred implementation shown in FIG. 1, the power supply mechanism 200 further includes a core 210, located close to another end opposite to the receiving cavity 270 in the length direction, and configured to supply power; and the controller 220, arranged between the core 210 and an accommodating cavity, and operably guiding a current between the core 210 and the first electrical contacts 230.
[0033] During use, the power supply mechanism 200 includes a sensor 250, configured to sense an inhalation flow generated during inhalation by using a suction nozzle cover 20 of the vaporizer 100, so that the controller 220 controls the core 210 to output the current to the vaporizer 100 according to a detection signal of the sensor 250.
[0034] Further, in the preferred implementation shown in FIG. 1, a charging interface 240 is arranged on another end of the power supply mechanism 200 away from the receiving cavity 270, to supply power to the core 210 after being connected to an external charging device.
[0035] FIG. 2 is a schematic diagram of a specific structure of the vaporizer 100 according to an embodiment of this application. In this embodiment, the vaporizer 100 is
overall in an elongated flat shape and has a near end 110 and a far end 120 opposite to each other in the length direction. During use, the near end 110 serves as an end for the mouth of a user to vape, and the far end 120 is an end received in a power supply device 200. In terms of external construction, the vaporizer 100 includes:
a main housing 10, in a hollow barrel shape, where an end portion close to the far end 120 is an opening; and
an end cap 20, arranged on the far end 120 of the vaporizer 100 and closing the opening of the main housing 10, to jointly form a complete housing of the vaporizer 100. In material use, the end cap 20 is made of stainless steel, and when the vaporizer 100 is at least partially received in the power supply device 200, the end cap 20 can be magnetically attached to a magnetic member of the power supply device 200, so that the vaporizer 100 is stably held in the power supply device 200.
[0036] Further, as shown in FIG. 2, the second electrical contact 21 of the vaporizer 100 extends to the inside from the far end 120, and is at least partially exposed on a surface of the end cap 20, so as to easily form conductivity with the power supply device 200 during use. In addition, the far end 120 of the vaporizer 100 is further provided with air inlets 22, for external air to enter the vaporizer 100 during inhalation of the user.
[0037] Further, FIG. 3 to FIG. 5 show a schematic diagram of an internal structure of the vaporizer 100 and a schematic exploded view of some components of the vaporizer 100 in FIG. 2. As shown in FIG. 3 and FIG. 4, the vaporizer 100 further includes:
an aerosol output pipe 11, extending in an axial direction of the main housing 10, where an upper end of the aerosol output pipe 11 is in airflow communication with a suction nozzle A located on an upper end of the main housing 100, so as to output the aerosol generated in the vaporizer 100 to the suction nozzle A for inhalation;
a liquid storage cavity 12, formed by a space between the aerosol output pipe 11 and an inner wall of the main housing 10, and configured to store the liquid substrate; and
a vaporization assembly 30, configured to absorb the liquid substrate from the liquid storage cavity 12 through capillary infiltration, and heat and vaporize the absorbed liquid substrate to generate the aerosol for inhalation. Specifically, the vaporization assembly 30 includes a liquid absorbing element 31, and a heating element 32 at least partially surrounding the liquid absorbing element 31. As shown in FIG. 3 and FIG. 4, the liquid absorbing element 31 is constructed to extend in a width direction of the main housing 10, and two ends of the liquid absorbing element 31 are exposed or are in fluid communication with the liquid storage cavity 12. The liquid substrate in the liquid storage cavity 12 is absorbed by the two ends of the liquid absorbing element 31 and then transferred to the inside along arrows R1 shown in FIG. 3. The heating element 32 surrounds or is wound around at least a part of the liquid absorbing element 31, and is configured to heat at least a part of the liquid substrate in the first liquid absorbing element 31 to generate the aerosol for inhalation.
[0038] In an optional implementation, the liquid absorbing element 31 may be made of or include a porous ceramic body, fiber cotton, a porous material, and the like; and the heating element 32 may be made of a resistive metal material, such as, iron, nickel, chromium, or alloy thereof.
[0039] Further, referring to FIG. 3 to FIG. 5, for ease of assembly and fixing of the vaporization assembly 30 in the main housing 10, a first support element and a second support element are further arranged in the main housing 10. The second support element is a rigid support frame 50, and the first support element is a flexible seal element 40. In some embodiments, the support frame 50 and the seal element 40 jointly clamp and hold the vaporization assembly 30. Specifically, referring to FIG. 5, the rigid support frame 50 is provided with a first wall 510 and a second wall 520 that extend in a length direction, and the first wall 510 and the second wall 520 are arranged oppositely close to two sides of the main housing 10 in a thickness direction. A vaporization chamber 530 and support grooves 540 located at two ends of the first wall 510 and the second wall 520 and configured to support the liquid absorbing element 31 are formed between the first wall 510 and the second wall 520. As shown in FIG. 5, the support groove 540 is generally in a U shape.
[0040] After assembly, the liquid absorbing element 31 and the heating element 32 are both mainly accommodated in the vaporization chamber 530, so that the generated aerosol can be released to the vaporization chamber 530, and outputted from the vaporization chamber 530 to the aerosol output pipe 11 through an air pipe insertion hole 41 on the seal element 40.
[0041] Two ends of the heating element 32 are further connected to the second electrical contacts 21 through elongated pins or wires 321, so as to supply power to the heating element 32 through the second electrical contacts 21.
[0042] The seal element 40 is further wrapped outside the first wall 510 and the second wall 520 of the support frame 50. After assembly, the seal element 40 clamps or tightly presses the liquid absorbing element 31 from the top of FIG. 5, so that the vaporization assembly 30 is stably held between the seal element 40 and the support frame 50.
[0043] Usually, in an optional implementation, the seal element 40 is prepared by a flexible material such as silicone or rubber. The air pipe insertion hole 41 is provided on the seal member 40, and during assembly, a lower end of the aerosol output pipe 11 is inserted into the air pipe insertion hole 41 to communicate with the vaporization chamber 530, to output the aerosol in the vaporization chamber 530 to the suction nozzle A for inhalation. During use, the seal element 40 is configured to prevent the liquid substrate in the liquid storage cavity 12 from entering the aerosol output pipe 11 and the vaporization chamber 530, so that the liquid substrate can leave the liquid storage cavity 12 only by being absorbed by the first liquid absorbing element 31.
[0044] Further, referring to FIG. 5, through holes 42 are provided on two sides of the seal element 40 in the width direction, and after the liquid absorbing element 31 is clamped or tightly pressed, the liquid absorbing element 31 can at least partially extend into the liquid storage cavity 12 through the through holes.
[0045] Further, for an airflow design of the e-cigarette vaporizer 100, refer to FIG. 4 and FIG. 6. The support frame 50 is provided with a main air chamber 51, and buffer air chambers 52 that are located on two sides of the main air chamber 51 in the width direction and in communication with the main air chamber 51. The buffer air chambers 52 are in direct airflow communication with the air inlets 22 on the end cap 20. In this way, during inhalation, after external air enters the buffer air chambers 52 through the air inlets 22, and then enters the main air chamber 51 from the buffer air chambers 52, the external air is outputted from an air outlet hole 511 to the aerosol output pipe 11 through the vaporization chamber 530, thereby forming a complete inhalation airflow shown by an arrow R2 in FIG. 6.
[0046] Further, referring to FIG. 6, a structure of the seal element 40 includes a holding portion 43 extending toward the liquid absorbing element 31, and the holding portion 43 holds the liquid absorbing element 31 on the support frame 50 by clamping or tightly pressing.
[0047] An extending protruding edge 44 surrounding the air pipe insertion hole 41 is provided on an inner wall of the seal element 40 close to the vaporization chamber 530. A hook-shaped or grooved space 45 away from the aerosol output pipe 11 is formed between the protruding edge 44 and the clamping portion 43. When the vaporizer 100 is placed flat or upside down in a direction opposite to that in FIG. 3 during use, after the liquid substrate in the liquid storage cavity 12 seeps into the vaporization chamber 530 through a gap between the holding portion 43 and the liquid absorbing element 31 along an arrow R3 shown in FIG. 6, the liquid substrate can be blocked by the protruding edge 44 and held in the hook-shaped or grooved space 45 formed between the protruding edge 44 and the clamping portion 43. Therefore, the problem that the liquid substrate directly flows into the air pipe insertion hole 41 and is inhaled by the user during inhalation can be avoided.
[0048] Further, referring to FIG. 6, an outer surface of the protruding edge 44 opposite to the clamping portion 43 is designed in a step shape. When the vaporizer 100 is turned to an inhalation or holding state shown in FIG. 3 from being placed flat or upside down, the step-shaped outer surface of the protruding edge 44 can guide the liquid substrate accumulated in the hook-shaped or grooved space 45 to drip to the vaporization assembly 30 to be re-vaporized. Alternatively, in other variation implementations, the outer surface of the protruding edge 44 opposite to the clamping portion 43 is designed to be inclined, such as an inclined surface or an arc surface.
[0049] FIG. 7 to FIG. 9 show a schematic structural diagram of a vaporizer 100a according to another embodiment. Construction of the vaporizer 100a includes:
a main housing 10a, where a suction nozzle A is arranged at an upper end of the main housing 10a, and the main housing 10a is in a hollow barrel shape with an opening at a lower end of the main housing 10a;
an end cap 20a, arranged on the opening at the lower end of the main housing 10a;
an aerosol output pipe 11a, extending in an axial direction of the main housing 10a, and configured to output an aerosol generated in the vaporizer 100a to the suction nozzle A;
a liquid storage cavity 12a, defined and formed by a space between the main housing 10a and the aerosol output pipe 11a, and configured to store a liquid substrate; and
a vaporization assembly 30a, configured to absorb the liquid substrate from the liquid storage cavity 12a through capillary infiltration, and heat and vaporize the absorbed liquid substrate to generate the aerosol for inhalation. Specifically, the vaporization assembly 30a includes a liquid absorbing element 31a extending in a width direction of the main housing 10a, and a heating element 32a at least partially surrounding the liquid absorbing element 31a and heating a part of the liquid substrate of the liquid absorbing element 3 1a to generate the aerosol. Two ends of the liquid absorbing element 31a are in fluid communication with the liquid storage cavity 12a, and the liquid substrate in the liquid storage cavity 12a is absorbed by the two ends of the liquid absorbing element 31a and then transferred to the inside along arrows R1 shown in FIG. 7. Likewise, the vaporizer 100a further includes second electrical contacts 21a configured to supply power to the heating element 32a.
[0050] For ease of sealing the liquid storage cavity 12a and holding the vaporization assembly 30a, the main housing 10a is further internally provided with:
a first support element and a second support element arranged in sequence in a vertical direction of the main housing 10a, where the first support element is a rigid holder 40a, and the second support element is a flexible support base 50a. The rigid holder 40a is close to the liquid storage cavity 12a, and the flexible support base 50a is held on the end cap 20a. After assembly, a vaporization chamber 70a is formed between the rigid holder 40a and the flexible support base 50a. The vaporization assembly 30a is located between the rigid holder 40a and the flexible support base 50a, and is clamped or held in the vaporization chamber 70a by the rigid holder 40a and the flexible support base 50a, so that the generated aerosol is released to the vaporization chamber 70a during use.
[0051] In addition, the rigid holder 40a is provided with a first insertion hole 41a, for an end portion of the aerosol output pipe 11a to be inserted into the first insertion hole 41a. At least a partial surface of the rigid holder 40a is covered with a seal element 60a to seal a gap between the rigid holder 40a and the main housing 10a, so as to prevent the liquid substrate in the liquid storage cavity 12a from seeping through the gap.
[0052] To match liquid guiding and assembly of the rigid holder 40a, the seal element 60a is provided with a first liquid guide hole 62a for the liquid substrate to flow to the rigid holder 40a, and a second insertion hole 61a for the aerosol output pipe 11a to run through and then be inserted into the first insertion hole 41a. In addition, the seal element 60a further seals a gap between the rigid holder 40a and the first insertion hole 41a, to prevent the liquid substrate in the liquid storage cavity 12a from seeping into the aerosol output pipe 11a through the gap.
[0053] As shown by the arrows R1 in FIG. 7, the rigid holder 40a is further provided with a second liquid guide hole 42a, and during use, the liquid substrate in the liquid storage cavity 12a flows through the first liquid guide hole 62a and the second liquid guide hole 42a in sequence and is then transferred to the vaporization assembly 30a for absorption and vaporization.
[0054] Specifically, in construction of details, the flexible support base 50a is provided with a concave cavity 51a facing the rigid holder 40a, and the vaporization assembly 30a is accommodated and placed in the concave cavity 51a. The rigid holder 40a matches the flexible support base 50a in to jointly clamp the vaporization assembly 30a, so that the vaporization assembly 30a is stably held between the rigid holder 40a and the flexible support base 50a.
[0055] An air inlet channel 52a is provided in one side of the flexible support base 50a, for external air to flow through an air inlet hole on the end cap 20a and the air inlet channel 52a in sequence and enter the vaporization chamber 70a between the rigid holder 40a and the flexible support base 50a during use.
[0056] Further, referring to FIG. 9, the rigid holder 40a is provided with a holding portion 46a extending toward the vaporization assembly 30a, and the vaporization assembly 30a is pressed tightly or held between the rigid holder 40a and the flexible support base 50a by the holding portion 46a.
[0057] As shown by an arrow R2 in FIG. 8, the rigid holder 40a is further provided with an air outlet hole 44a located at the center and opposite to the first insertion hole 41a, and the aerosol in the vaporization chamber 70a is outputted to the aerosol output pipe 11a through the air outlet hole 44a.
[0058] The rigid holder 40a is further provided with a first protruding edge 442a extending into the vaporization chamber 70a and surrounding the air outlet hole 44a, so as to form a hook-shaped or grooved space 47a between the first protruding edge 442a and the holding portion 46a. The hook-shaped or grooved space 47a is configured to, when the vaporizer 100a is placed flat or upside down, prevent the liquid substrate in the second liquid guide hole 42a from seeping into the air outlet hole 44a through a gap between the holding portion 46a and the vaporization assembly 30a. According to a preferred implementation shown in FIG. 10, a surface of the hook-shaped or grooved space 47a is provided with several grooves 471a extending in the width direction and capable of absorbing and holding the liquid substrate flowing into the hook-shaped or grooved space 47a.
[0059] Further, referring to FIG. 9 and FIG. 10, the rigid holder 40a is further provided with a second protruding edge 441a extending toward the first insertion hole 41a, and an accommodating or holding space 45a defined by an outer wall of the second protruding edge 441a and surrounding the second protruding edge 441a. When the vaporizer 100a is obliquely held by a user for inhalation or is placed flat, condensate formed after the aerosol on an inner wall of the aerosol output pipe 11a is cooled obliquely drips into the holding space 45a rather than directly vertically dripping into the vaporization chamber 70a. In addition, the holding space 45a is in airflow communication with several capillary grooves 43a on an outer wall of the rigid holder 40a, so that the condensate or liquid in the holding space 45a can be transferred or absorbed to the capillary grooves 43a by capillary absorption and is therefore prevented from seeping through the end cap 20a. Specifically, as can be seen from FIG. 10, the holding space 45a is in airflow communication with the capillary grooves 43a through windows 48a on two sides of the rigid holder 40a.
[0060] Further, referring to FIG. 10, the holding portion 46a of the rigid holder 40a is located between the second liquid guide hole 42a and the first protruding edge 442a In other variation implementations, the holding portion 46a may also be in a U shape, so as to better match the shape of the vaporization assembly 30a, thereby reducing the gap between the holding portion 46a and the vaporization assembly 30a, and preventing and reducing seeping of the liquid substrate.
[0061] In addition, in a preferred implementation shown in FIG. 9, a third capillary groove 53a extending in the vertical direction is further formed on an inner wall of the vaporization chamber 70a defined by the flexible support base 50a. A function and an objective of the third capillary groove 53a are basically to absorb and hold the condensate of the aerosol generated and accumulated in the vaporization chamber 70a, to prevent the condensate from flowing out of the air inlet channel 52a.
[0062] Further, in the foregoing preferred implementations, a width of the capillary groove 43a and/or the groove 471a and/or the third capillary groove 53a configured to absorb a liquid by a capillary action is preferably maintained at a millimeter level, and is more preferably less than 1 mm.
[0063] It should be noted that, the specification of this application and the accompanying drawings thereof illustrate preferred embodiments of this application, but are not limited to the embodiments described in this specification. Furthermore, a person of ordinary skill in the art may make improvements or modifications according to the foregoing description, and all the improvements and modifications shall fall within the protection scope of the attached claims of this application.
a liquid storage cavity, configured to store a liquid substrate;
a liquid absorbing element, constructed to be in fluid communication with the liquid storage cavity to absorb the liquid substrate;
a first support element, located between the liquid absorbing element and the liquid storage cavity, and configured to at least partially support the liquid absorbing element and at least partially define a vaporization chamber surrounding the liquid absorbing element;
a heating element, combined on the liquid absorbing element, and configured to heat at least a part of the liquid substrate of the liquid absorbing element to generate an aerosol and release the aerosol to the vaporization chamber; and
an aerosol output channel, at least partially formed on the first support element, and configured to output the aerosol in the vaporization chamber, wherein
the first support element is provided with a first protruding edge extending into the vaporization chamber; and the first protruding edge is constructed to prevent the liquid substrate from flowing to the aerosol output channel through a gap between the first support element and the liquid absorbing element.
the aerosol output channel further comprises an air pipe extending in the vertical direction of the outer housing; and
the through hole and the air pipe are coaxially arranged and kept spaced.
a second support element, located on a side of the liquid absorbing element away from the first support element in a vertical direction, and at least partially supporting the liquid absorbing element, wherein the second support element and the first support element define the vaporization chamber.
a liquid storage cavity, configured to store a liquid substrate;
a liquid absorbing element, constructed to be in fluid communication with the liquid storage cavity to absorb the liquid substrate;
a first support element, located between the liquid absorbing element and the liquid storage cavity, and at least partially defining a vaporization chamber surrounding the liquid absorbing element;
a heating element, combined on the liquid absorbing element, and configured to heat at least a part of the liquid substrate of the liquid absorbing element to generate an aerosol and release the aerosol to the vaporization chamber; and
an aerosol output channel, configured to output the aerosol in the vaporization chamber, wherein the aerosol output channel comprises a through hole extending in the first support element in a vertical direction of the outer housing and opposite to the heating element;
the first support element is further provided with a second protruding edge extending in a direction away from the vaporization chamber; and the second protruding edge is constructed to prevent aerosol condensate generated from an inner wall of the aerosol output channel from flowing to the through hole.
a second support element, located on a side of the liquid absorbing element away from the first support element in a vertical direction, and at least partially supporting the liquid absorbing element, wherein the second support element and the first support element define the vaporization chamber.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.
Patent documents cited in the description