COMBINED AIR-CONDITIONING UNIT

Abstract

 A combined air-conditioning unit. The combined air-conditioning unit comprises a box, a combined body and a connecting assembly, wherein the box comprises a plurality of side plates; the connecting assembly comprises at least one first connecting component and a first support component; and the at least one first connecting component is a plastic member, and one of the at least one first connecting component comprises a first connecting body, a first insertion portion and a first heat insulation portion, the first insertion portion being arranged on the side of the first connecting body away from the box, and the first heat insulation portion being arranged in the first connecting body and being configured to prevent heat transfer between the inside and outside of the box, so as to insulate the interior of the box.

Description

[0001] This application claims the priority of a Chinese Patent Application No. 202311783159.0 filed on December 22, 2023, the priority of a Chinese Patent Application No. 202323539123.6 filed on December 22, 2023, the priority of a Chinese Patent Application No. 202323520192.2 filed on December 22, 2023, and the priority of a Chinese Patent Application No. 202311794189.1 filed on December 22, 2023, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of air conditioning, and in particular to a combined air-conditioning unit.

BACKGROUND

[0003] In recent years, with the rapid development of industries such as pharmaceuticals, semiconductors, lithium batteries, rail transit and electronic factories, combined air-conditioning units have found new application scenarios. A combined air-conditioning unit is an air treatment device formed by assembling various air treatment functional sections.

SUMMARY

[0004] Provided herein is a combined air-conditioning unit. The combined air-conditioning unit includes a box, a combined body and a connecting assembly. The box includes a plurality of side plates, and the box is surrounded by the plurality of side plates. The combined body is arranged in the box and includes a plurality of functional sections, and the plurality of functional sections have different functions. The combined body is configured to combine the plurality of functional sections to perform cooling or heating. The connecting assembly includes at least one first connecting component and a first support component. The at least one first connecting component is a plastic member and connects adjacent side plates of the plurality of side plates. One of the at least one first connecting component includes a first connecting body, a first insertion portion and a first heat insulation portion. The first insertion portion is arranged on the side of the first connecting body distal to the box. The first heat insulation portion is arranged in the first connecting body and configured to prevent heat transfer between an interior and an exterior of the box, so as to insulate the interior of the box. The first support component is a rigid member, arranged on the first insertion portion and configured to enhance the structural strength of the first connecting component.

BRIEF DESCRIPTION OF THE DRAWINGS

[0005] 

FIG. 1 is a block diagram of a combined air-conditioning unit according to some embodiments.

FIG. 2 is a structural diagram of a combined air-conditioning unit according to some embodiments.

FIG. 3 is another structural diagram of a combined air-conditioning unit according to some embodiments.

FIG. 4 is yet another structural diagram of a combined air-conditioning unit according to some embodiments.

FIG. 5 is a perspective view of a first connecting component and a plurality of side plates according to some embodiments.

FIG. 6 is a sectional view of a first connecting component and a plurality of side plates according to some embodiments.

FIG. 7 is yet another structural diagram of a combined air-conditioning unit according to some embodiments.

FIG. 8 is a partial enlarged view of area A in FIG. 7.

FIG. 9 is a structural diagram of an adapter according to some embodiments.

FIG. 10 is a structural diagram of a connecting assembly according to some embodiments.

FIG. 11 is a sectional view of a second connecting component and a plurality of sub-side plates according to some embodiments.

FIG. 12 is another structural diagram of a second connecting component according to some embodiments.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0006] Hereinafter, some embodiments of the present disclosure will be clearly and completely described with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, but not all embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art should be included in the scope of protection of the present disclosure.

[0007] Unless otherwise specified in the context, throughout the specification and claims, the term "comprise" and other forms thereof, such as the third-person singular form "comprises" and the present participle form "comprising", are construed as having an open, inclusive meaning, i.e., "including but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example", or "some examples" are intended to indicate that specific features, structures, materials, or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The illustrative representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be included in any one or more embodiments or examples in any suitable manner.

[0008] Hereinafter, the terms "first" and "second" are for descriptive purposes only, and cannot be understood as indicating or implying relative importance or as implicitly indicating the number of technical features indicated. Thus, the feature defined by "first" and "second" can explicitly or implicitly include one or more features. In the description of embodiments of the present disclosure, unless otherwise specified, "a plurality" means two or more.

[0009] When some embodiments are described, expression "connection" or derivatives thereof may be used. The term "connected" should be understood in a broad sense. For example, "connected" may be a fixed connection, a detachable connection or an integral connection, and may be a direct connection or an indirect connection through an intermediate medium. The embodiments disclosed herein are not necessarily limited to the content herein.

[0010] "At least one of A, B, and C" has the same meaning as "at least one of A, B, or C", including the following combinations of A, B, and C: only A, only B, only C, a combination of A and B, a combination of A and C, a combination of B and C, as well as a combination of A, B, and C.

[0011] The use of "applicable to" or "configured to" herein means open and inclusive language that does not exclude devices applicable to or configured to perform additional tasks or steps.

[0012] As used herein, "about," "approximately," or "approximately" includes a stated value as well as an average within an acceptable range of deviation from a particular value, where the acceptable range of deviation is determined by one of ordinary skill in the art taking into account the measurement in question and the error associated with the measurement of a particular amount (i.e., limitations of the measurement system).

[0013] As used herein, terms such as "parallel," "perpendicular," and "equal" include both the stated conditions and conditions that are approximate to the stated ones, with the range of approximation falling within an acceptable deviation, where the acceptable range of deviation is as determined by a person of ordinary skill in the art taking into account the measurement in question and the error associated with the measurement of a particular quantity (i.e., limitations of the measurement system). For example, "parallel" encompasses both absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism can be, for instance, within 5° of deviation; similarly, "perpendicular" includes both absolute perpendicularity and approximate perpendicularity, with an acceptable deviation range for approximate perpendicularity that can also be, for example, within 5° of deviation. "Equal" includes both absolute equality and approximate equality, where the acceptable deviation range for approximate equality can be, for example, a difference between the two quantities being compared that is less than or equal to 5% of either quantity.

[0014] A combined air-conditioning unit is an air treatment device formed by combining devices corresponding to a plurality of individual air-conditioning functional sections, and the functional sections can be freely combined according to specific requirements. For example, the plurality of individual air-conditioning functional sections include air mixing, flow equalization, filtration, cooling, primary heating, secondary heating, dehumidification, humidification, air supply, air return, water spraying, noise elimination, heat recovery, purification and the like. The flow equalization may refer to enabling air to flow uniformly within the combined air-conditioning unit to avoid local overheating or overcooling. The heat recovery may refer to recovering heat from indoor air for utilization. For example, components associated with the plurality of individual air-conditioning functional sections include fans, filters, cooling coils, heating coils and heaters, and the above devices can be combined as needed to meet different requirements. Additionally, the air volume of the combined air-conditioning unit can reach 2000 m³/h to 100000 m³/h, which is much greater than that of ordinary air conditioners.

[0015] Typically, a box of a combined air-conditioning unit includes a frame and a panel, and the frame includes a thermal break aluminum profile, a three-way connector and a straight connector, thereby enhancing the mechanical strength of the box. However, aluminum is costly. In some solutions, the aluminum is replaced with glass fiber reinforced plastics to reduce cost. However, it is difficult for the glass fiber reinforced plastics to form a secure connection with a fastening component (such as a tapping screw). For example, during assembly or maintenance of the combined air-conditioning unit, after the tapping screw is removed and when a frame of the glass fiber reinforced plastics and a panel are fixed by using the tapping screw again, a sliding wire phenomenon is prone to occur. In some other solutions, the fixing effect between the frame and the tapping screws is improved by manually inserting a steel pipe into an interior of the frame of the glass fiber reinforced plastics. However, this approach still incurs high costs.

[0016] Additionally, it is usually necessary to mount sealing cotton between the thermal break aluminum profile and the panel to improve the sealing performance. However, when the pressure inside the box exceeds the pressure outside the box, the sealing cotton receives pressure from an interior to an exterior the box, resulting in poor resilience of the sealing cotton.

[0017] Furthermore, the corners inside the combined box are usually right-angled. For example, the corner where the panel is joined to the panel inside the box, or where the panel is joined to the frame, is right-angled. However, since it is necessary to clean the interior of the box and components inside the box (such as a filtration apparatus), for example, the box is washed with water or the interior of the box is disinfected, and the right-angled corners tend to accumulate dust, it is difficult to clean the box.

[0018] Some embodiments of the present disclosure provide a combined air-conditioning unit 1000. The combined air-conditioning unit 1000 includes side plates and a connecting assembly, where the connecting assembly is formed by combining a plastic member and a rigid member to improve the fixing effect between the connecting assembly and the fastening component and reduce the cost. Additionally, the heat insulation component included in the connecting assembly is filled with a heat insulation material (such as polyurethane), and the material of the sealing portion is also polyurethane, so that the sealing effect of the combined air-conditioning unit 1000 is improved. Furthermore, at least one part of the connecting assembly located inside the box is arc-shaped to facilitate cleaning of the interior of the combined air-conditioning unit 1000. FIG. 1 is a block diagram of a combined air-conditioning unit according to some embodiments.

[0019] As shown in FIG. 1, the combined air-conditioning unit 1000 includes a combined body 1001 and a box 700. The combined body 1001 is arranged in the box 700.

[0020] In some embodiments, as shown in FIG. 1, the combined body 1001 includes a filtration apparatus 1002. For example, the filtration apparatus 1002 includes a frame and a filter element. The filtration apparatus 1002 is configured to filter airflow entering the combined air-conditioning unit 1000. For example, the box 700 is provided with an air inlet portion and an air outlet portion, and the filtration apparatus 1002 is arranged proximal to the air inlet portion, so that airflow entering the box 700 first passes through the filtration apparatus for filtration.

[0021] In some embodiments, as shown in FIG. 1, the combined body 1001 further includes a heat exchange apparatus 1003. The heat exchange apparatus 1003 is configured to exchange heat with the airflow inside the box 700 for cooling or heating. For example, the heat exchange apparatus 1003 includes a heat exchanger.

[0022] In some embodiments, as shown in FIG. 1, the combined body 1001 further includes a fan 1004. The fan 1004 is configured to drive the airflow to circulate inside the box 700. The fan 1004 draws airflow in from the air inlet portion, and the airflow passes through the filtration apparatus 1002 and the heat exchange apparatus 1003 before being discharged from the air outlet portion.

[0023] In some embodiments, the box 700 is provided with a first region 1010, a second region 1020 and a third region 1030. The filtration apparatus 1002 is arranged in the first region 1010 to form a filtration section. The heat exchange apparatus 1003 is arranged in the second region 1020 to form a heat exchange section. The fan 1004 is arranged in the third region 1030 to form an air supply section.

[0024] In some embodiments, the box 700 is further provided with a fourth region, thereby facilitating the maintenance of the combined air-conditioning unit 1000.

[0025] In some embodiments, the combined body 1001 further includes a humidifier. The humidifier is configured to increase the humidity of indoor air to improve the moisture level of the indoor air. For example, the humidifier is arranged behind the heat exchanger.

[0026] In some embodiments, the combined body 1001 further includes a silencer. The silencer is configured to reduce noise generated during the operation of the combined air-conditioning unit 1000. For example, the silencer is arranged before the third region 1030.

[0027] In some embodiments, the combined air-conditioning unit 1000 is connected to a main unit to achieve corresponding functions.

[0028] In some embodiments, the main unit includes a compressor. The compressor is configured to compress a refrigerant, so that a low-pressure refrigerant is compressed into a high-pressure refrigerant.

[0029] In some embodiments, the main unit further includes a second heat exchange apparatus. The second heat exchange apparatus is configured to exchange heat with fluid circulating within the main unit. For example, when the first heat exchange apparatus 1003 serves as an evaporator, the second heat exchange apparatus is a condenser. When the first heat exchange apparatus 1003 serves as a condenser, the second heat exchange apparatus is an evaporator.

[0030] In some embodiments, the main unit further includes an expansion valve. The expansion valve is configured to expand a high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant.

[0031] In some embodiments, the combined air-conditioning unit 1000 may also be connected to a cooling tower to achieve the functions of the combined air-conditioning unit 1000. It should be noted that the combined air-conditioning unit 1000 may be connected to different components according to actual requirements, and the present disclosure does not limit this.

[0032] FIG. 2 is a perspective view of a combined air-conditioning unit according to some embodiments. FIG. 3 is another perspective view of a combined air-conditioning unit according to some embodiments. FIG. 4 is yet another perspective view of a combined air-conditioning unit according to some embodiments.

[0033] In some embodiments, as shown in FIG. 2 to FIG. 4, the box 700 includes a plurality of side plates 200. The plurality of side plates 200 are connected mutually to form the box 700. For example, the box 700 is shaped like a cuboid.

[0034] For example, as shown in FIG. 2 to FIG. 4, the plurality of side plates 200 include four first side plates 201, a second side plate 202 and a third side plate 203. The four first side plates 201 are sequentially connected to form side walls of the box 700, and the second side plate 202 is arranged at upper ends of the four first side plates 201 to form a top wall of the box 700. The third side plate 203 is parallel to the second side plate 202 and arranged at lower ends of the four first side plates 201 to form a bottom wall of the box 700.

[0035] In some embodiments, the box 700 further includes a reinforcing beam. The reinforcing beam is arranged on the third side plate 203 and connected between two opposite first side plates 201 of the four first side plates 201 to enhance the structural strength of the box 700.

[0036] In some embodiments, as shown in FIG. 2 and FIG. 3, each first side plate 201 includes a plurality of first sub-side plates 250. The plurality of first sub-side plates 250 are arranged along a length direction or a width direction of the box 700, and the plurality of first sub-side plates 250 are connected to form the first side plate 201. The length direction of the box 700 may refer to a left-right direction in FIG. 3, and the width direction of the box 700 may refer to a front-back direction in FIG. 3.

[0037] In some embodiments, as shown in FIG. 3, the second side plate 202 includes a plurality of second sub-side plates 260. The plurality of second sub-side plates 260 are arranged along the length direction or the width direction of the box 700, and the plurality of second sub-side plates 260 are connected to form the second side plate 202.

[0038] In some embodiments, as shown in FIG. 4, the second side plate 202 includes a plurality of third sub-side plates 270. The plurality of third sub-side plates 270 are arranged along the length direction or the width direction of the box 700, and the plurality of third sub-side plates 270 are connected to form the third side plate 203.

[0039] Since the combined air-conditioning unit 1000 has many internal components, and the combined air-conditioning unit 1000 is relatively large in size, dividing the side plates 200 into a plurality of sub-side plates and assembling the plurality of sub-side plates facilitates the mounting and transportation of the combined air-conditioning unit 1000.

[0040] In some embodiments, the second side plate 202 and the third side plate 203 are respectively filled with a heat insulation material (such as rigid polyurethane foam or rock wool) to enhance the heat insulation effect of the box 700.

[0041] In some embodiments, the second side plate 202 and the third side plate 203 are respectively filled with high-rigidity materials (such as polyvinyl chloride (PVC) or glass fiber reinforced plastics (GFRP)) to enhance the rigidity of the box 700.

[0042] In some embodiments, as shown in FIG. 2, the combined air-conditioning unit 1000 further includes a base 100. The base 100 is arranged on one side (a bottom side) of the third side plate 203 distal to the second side plate 202 to support the box 700.

[0043] In some embodiments, the base 100 includes a support component. For example, the support component includes a plurality of beams, and the plurality of beams are welded mutually or connected by a bolt to form the base 100. For example, the plurality of beams include transverse beams and longitudinal beams, so that when the combined air-conditioning unit 1000 is loaded and carried by a transport apparatus (such as a forklift), the combined air-conditioning unit 1000 can be prevented from tilting or being damaged.

[0044] In some embodiments, the third side plate 203 in the box 700 may be omitted, and the plurality of first side plates 201 are respectively arranged on the base 100 to facilitate the assembly of the box 700.

[0045] In some embodiments, the combined air-conditioning unit 1000 further includes a damping member. The damping member is arranged between the box 700 and the base 100. The damping member is configured to reduce vibration during the startup, shutdown and operation of the combined air-conditioning unit 1000.

[0046] FIG. 5 is a perspective view of a first connecting component and a plurality of side plates according to some embodiments. FIG. 6 is a sectional view of a first connecting component and a plurality of side plates according to some embodiments.

[0047] In some embodiments, as shown in FIG. 5 and FIG. 6, each side plate 200 includes a first connecting plate 210 and a second connecting plate 220. The first connecting plate 210 is a rigid member, and the first connecting plate 210 serves as an inner wall of the side plate 200. The second connecting plate 220 is a rigid member, and the second connecting plate 220 serves as an outer wall of the side plate 200 and is spaced apart from the first connecting plate 210. In an extending direction of the side plate 200, a length of the second connecting plate 220 is greater than that of the first connecting plate 210.

[0048] In some embodiments, as shown in FIG. 6, the first connecting plate 210 includes a first bent portion 2100. One end of the first connecting plate 210 proximal to the first connecting component 300 is bent toward a direction proximal to the second connecting plate 220 to form the first bent portion 2100.

[0049] In some embodiments, as shown in FIG. 6, the second connecting plate 220 includes a second bent portion 2200. One end of the second connecting plate 220, which is proximal to the first connecting component 300, is bent toward the direction of the first connecting plate 210 to form the second bent portion 2200.

[0050] It should be noted that the first bent portion 2100 and the second bent portion 2200 may be rigid members, respectively. For example, materials of the first bent portion 2100 and the second bent portion 2200 are one of galvanized steel, color-coated steel or stainless steel, respectively.

[0051] In some embodiments, as shown in FIG. 6, the side plate 200 further includes a first thermal insulation member 230. The combined air-conditioning unit 1000 further includes a connecting assembly 3000. The first thermal insulation member 230 is arranged around the first connecting plate 210 and the second connecting plate 220, and is connected to the first connecting plate 210. The first thermal insulation member 230 is configured to provide thermal insulation and seal a gap at a connection portion between the first connecting component 300 and the side plate 200. A first cavity 2300 is surrounded by the first connecting plate 210, the second connecting plate 220 and the first thermal insulation member 230, and the first cavity 2300 is filled with a heat insulation material to achieve the thermal insulation effect of the side plate 200. The first thermal insulation member 230 may be a plastic member or a thermosetting member.

[0052] FIG. 7 is yet another perspective view of a combined air-conditioning unit according to some embodiments. FIG. 8 is a partial enlarged view of area A in FIG. 7. FIG. 9 is a structural diagram of an adapter according to some embodiments.

[0053] In some embodiments, as shown in FIG. 7 to FIG. 9, the connecting assembly 3000 includes at least one first connecting component 300. The at least one first connecting component 300 is arranged between adjacent side plates 200 and connects the adjacent side plates 200. An included angle between the two adjacent side plates 200 connected by the first connecting component 300 is a right angle. Of course, an included angle between the two adjacent side plates 200 connected by the first connecting component 300 may also be another included angle.

[0054] The following description takes the case where the adjacent side plates 200 connected by the first connecting component 300 are perpendicular to each other as an example.

[0055] In some embodiments, the first connecting component 300 is a plastic member. A material of the plastic member includes a composite material. For example, the material of the plastic member includes glass fiber reinforced plastics. The glass fiber reinforced plastics are formed by resin and glass fiber, and have low thermal conductivity and high strength. For another example, the material of the plastic member includes plastic, for example, the plastic includes polyvinyl chloride, polyphenylene sulfide (PPS), polyvinyl alcohol (PVA), polypropylene (PP) or polyethylene (PE).

[0056] FIG. 10 is a structural diagram of a first connecting component according to some embodiments. In some embodiments, as shown in FIG. 5, FIG. 6 and FIG. 10, the first connecting component 300 includes a first connecting body 350 and a first insertion portion 310. The first insertion portion 310 is arranged on one side of the first connecting body 350 distal to the interior of the box 700.

[0057] In some embodiments, as shown in FIG. 6 and FIG. 10, the first insertion portion 310 includes a first reinforcing portion 360 and a first insertion cavity 3103. The first reinforcing portion 360 is connected to the first connecting body 350, and the first insertion cavity 3103 is surrounded by the first reinforcing portion 360 and the first connecting body 350. The first reinforcing portion 360 is connected to the adjacent side plate 200. For example, the first connecting component 300 further includes a first fastening portion 340, and the first fastening portion 340 passes through the side plate 200 to be connected to the first reinforcing portion 360.

[0058] In some embodiments, as shown in FIG. 6 and FIG. 10, the first reinforcing portion 360 includes a first sub-reinforcing portion 361 and a second sub-reinforcing portion 362. One end of the first sub-reinforcing portion 361 is connected to the first connecting body 350, the other end of the first sub-reinforcing portion is connected to one end of the second sub-reinforcing portion 362, and the other end of the second sub-reinforcing portion 362 is connected to the first connecting body 350. The first insertion cavity 3103 is surrounded by the first sub-reinforcing portion 361, the second sub-reinforcing portion 362 and one side of the first connecting body 350. In this case, the first connecting component 300 may include two first fastening portions 340. One first fastening portion 340 passes through one side plate 200 of the adjacent side plates 200 to be connected to the first sub-reinforcing portion 361, and the other first fastening portion 340 passes through the other side plate 200 of the adjacent side plates 200 to be connected to the second sub-reinforcing portion 362.

[0059] In some embodiments, an included angle is formed between the first sub-reinforcing portion 361 and the second sub-reinforcing portion 362. For example, the first sub-reinforcing portion 361 and the second sub-reinforcing portion 362 are perpendicular to each other.

[0060] In some embodiments, as shown in FIG. 5, FIG. 6 and FIG. 10, the first connecting component 300 further includes a first heat insulation portion 320. The first heat insulation portion 320 is arranged in the first connecting body 350 and spaced apart from the first insertion portion 310. Relative to the first insertion portion 310, the first heat insulation portion 320 is closer to the interior of the box 700. The first heat insulation portion 320 is configured to prevent heat transfer between an interior and an exterior of the box 700, thereby achieving heat insulation inside the box 700.

[0061] In some embodiments, the first heat insulation portion 320 is a cavity, and the cavity is filled with a heat insulation material to achieve heat insulation, thereby achieving heat insulation inside the box 700. For example, the heat insulation material includes polyurethane or rock wool.

[0062] In some embodiments, as shown in FIG. 6 and FIG. 10, the first connecting body 350 includes a plurality of first inclined portions 351. The plurality of first inclined portions 351 are a plurality of surfaces of the first connecting body 350 proximal to the adjacent side plates 200 and are respectively inclined relative to a direction from the interior to the exterior of the box 700.

[0063] In some embodiments, as shown in FIG. 6 and FIG. 10, in the direction from the interior to the exterior of the box 700, the spacing D1 between the plurality of first inclined portions 351 increases.

[0064] In some embodiments, as shown in FIG. 5, FIG. 6 and FIG. 10, the first connecting body 350 further includes a transition surface 380. The transition surface 380 is a side surface of the first connecting body 350 proximal to the interior of the box 700. For example, the transition surface 380 is arc-shaped and recessed toward a direction proximal to the first insertion portion 310. The arc-shaped transition surface 380 is arranged inside the box 700, so that dust accumulation and cleaning difficulty can be effectively reduced, and the flatness of the inner surface of the box 700 is improved.

[0065] In some embodiments, as shown in FIG. 10, the first connecting component 300 further includes a first snap-fitting portion 370. The first snap-fitting portion 370 is arranged between the first connecting body 350 and the first reinforcing portion 360. For example, the first snap-fitting portion 370 is arranged on one side of a connection portion between the first connecting body 350 and the first reinforcing portion 360 proximal to the side plate 200, the first snap-fitting portion 370 is a snap-fitting groove, and the snap-fitting groove is arc-shaped or semi-circular.

[0066] In some embodiments, as shown in FIG. 7 to FIG. 9, at least one first connecting component 300 includes a plurality of first connecting components 300, and the connecting assembly 3000 further includes a first connector 500. The first connector 500 is inserted into the first insertion portion 310 of the converged first connecting components 300 to connect the converged first connecting components 300. The converged first connecting components 300 include three first connecting components 300 that connect adjacent side plates of three mutually perpendicular side plates 200.

[0067] In some embodiments, as shown in FIG. 7 to FIG. 9, the first connector 500 may include a three-way connector. Since end parts of the first connecting components 300 located in three mutually perpendicular planes converge at the corner of the box 700, the three-way connector includes three protrusions 501, and the three protrusions 501 respectively protrude in three mutually perpendicular directions. In this way, the three protrusions can be respectively inserted into the first insertion portions 310 of the three first connecting components 300 that converge at the corner of one box 700, thereby connecting the three first connecting components 300.

[0068] In some embodiments, the connecting assembly 3000 further includes a sealing gasket, and the sealing gasket is arranged at a connection position between the first connector 500 and the first connecting component 300 to seal the box 700.

[0069] In some embodiments, as shown in FIG. 6, the first thermal insulation member 230 includes a first thermal insulation body 231. The first thermal insulation body 231 includes a second inclined portion 232, and the second inclined portion 232 is a surface of the first thermal insulation body 231 proximal to the first connecting component 300. The second inclined portion 232 is substantially parallel to one first inclined portion 351 of the plurality of first inclined portions 351 and attached to the first inclined portion 351.

[0070] In some embodiments, as shown in FIG. 6, the first thermal insulation member 230 further includes a first extension portion 233. One part of one side of the first thermal insulation body 231 distal to the first cavity 2300 extends in a direction distal to the first cavity 2300 to form the first extension portion 233. The second bent portion 2200 wraps one end of the first extension portion 233 distal to the first cavity 2300 to enhance the strength of the first thermal insulation member 230.

[0071] In some embodiments, as shown in FIG. 6, the first thermal insulation member 230 further includes a third bent portion 236. The third bent portion 236 is arranged on one side of the first thermal insulation body 231 distal to the first connecting component 300. The third bent portion 236 extends in a direction distal to the first connecting component 300, and is bent toward a direction proximal to the first connecting plate 210 to form the third bent portion 236. The third bent portion 236 is snap-fitted to the first bent portion 2100.

[0072] In some embodiments, as shown in FIG. 6, the first thermal insulation member 230 further includes a plurality of first sealing portions 234. The plurality of first sealing portions 234 are arranged on the second inclined portion 232 and arranged at equal intervals along the extending direction of the second inclined portion 232. The plurality of first sealing portions 234 abut against the first inclined portion 351.

[0073] In some embodiments, the plurality of first sealing portions 234 may be semi-circular or arc-shaped, respectively.

[0074] In this way, when the first connecting component 300 is arranged between two side plates 200, the plurality of second inclined portions 232 fit the plurality of first inclined portions 351 to extrude the first sealing portions 234, so that the sealing effect of the box 700 can be improved.

[0075] In some embodiments, as shown in FIG. 6, the first thermal insulation member 230 further includes a second sealing portion 235. The second sealing portion 235 is arranged at one end of the second inclined portion 232 distal to the box 700. The second sealing portion 235 is inclined relative to the direction from the interior to the exterior of the box 700, and is snap-fitted to the first snap-fitting portion 370 to perform sealing.

[0076] It should be noted that the first sealing portion 234 and the second sealing portion 235 have flexibility, respectively.

[0077] When the internal pressure of the box 700 is less than or greater than the external pressure, the second sealing portion 235 may be snap-fitted to the first snap-fitting portion 370 respectively to achieve the sealing effect for the box 700.

[0078] In some embodiments of the present disclosure, a material of the first thermal insulation member 230 may be polyvinyl chloride, and a hardness of the first thermal insulation body 231 is greater than that of the first sealing portion 234 and the second sealing portion 235. In this way, the first thermal insulation member 230 is manufactured by an extrusion process, so that the structural strength of the side plate 200 surrounded by the first thermal insulation member 230 can be enhanced, and the sealing effect of the box 700 can be improved.

[0079] In some embodiments, as shown in FIG. 6, the first thermal insulation member 230 further includes a third sealing portion 400. The third sealing portion 400 is arranged between the first extension portion 233 and the first reinforcing portion 360, and is configured to seal a gap at a connection portion between the first connecting component 300 and the first thermal insulation member 230. A material of the third sealing portion 400 may be soft polyurethane. The soft polyurethane has good elasticity and stability, is not easily deformed or aged, and can improve the sealing effect between the first thermal insulation member 230 and the first connecting component 300.

[0080] In some embodiments of the present disclosure, the first sealing portion 234, the second protruding portion 235, the first snap-fitting portion 370 and the third sealing portion 400 are provided to form a multi-layer sealing structure, so that the sealing effect of the box 700 can be improved. Since the first sealing portion 234, the second protruding portion 235, the first snap-fitting portion 370 and the third sealing portion 400 can be formed by the first thermal insulation member 230 and the first connecting component 300, it is unnecessary to perform adhesive sealing at the side plate 200 and the first connecting component 300, thereby avoiding the problem of low production efficiency caused by the need for adhesive sealing in the combined air-conditioning unit 1000 and improving the production efficiency of the combined air-conditioning unit 1000.

[0081] In some embodiments, as shown in FIG. 10, the connecting assembly 3000 further includes a first support component 330. The first support component 330 is arranged on the first connecting component 300 and configured to enhance the strength of the first connecting component 300.

[0082] As shown in FIG. 10, the first fastening portion 340 passes through the side plate 200 and extends into the first insertion portion 310 to be connected to the first support component 330. For example, the first fastening portion 340 includes a screw.

[0083] For example, as shown in FIG. 6 and FIG. 10, the plurality of fastening portions 340 include two first fastening portions 340. The two fastening portions 340 respectively pass through the corresponding side plates 200 to be fixedly connected to the first support component 330.

[0084] In this way, the first support component 330 is provided to facilitate the connection between the side plate 200 and the first connecting component 300 and enhance the strength of the first connecting component 300.

[0085] In some embodiments, the first support component 330 is embedded inside the first insertion portion 310, and the first support component 330 extends along a side wall of the first insertion portion 310. For example, as shown in FIG. 6 and FIG. 10, the first support component 330 is embedded inside the first reinforcing portion 360, or is arranged along an inner side surface or an outer side surface of the first reinforcing portion 360.

[0086] For example, the first support component 330 is embedded in one side wall of the first insertion portion 310, or the first support component 330 is embedded in two side walls of the first insertion portion 310, or the first support component 330 is embedded in all side walls of the first insertion portion 310.

[0087] The foregoing description takes the case where the first support component 330 is embedded inside the first insertion portion 310 as an example. Of course, in some embodiments, the first support component 330 may also be attached to an inner wall surface of the first insertion portion 310.

[0088] For example, the first support component 330 is a steel plate, and the first support component 330 is attached to one or two inner wall surfaces of the first insertion portion 310. Or, the first support component 330 is a rigid connecting pipe or a rigid connecting plate having a shape similar to that of the first insertion portion 310, and is arranged around all the inner wall surfaces of the first insertion portion 310.

[0089] In some embodiments, the first support component 330 may also be wrapped on an outer side of the first insertion portion 310 and extend along an outer wall surface of the first insertion portion 310.

[0090] In some embodiments, the first support component 330 is a rigid member. For example, a material of the rigid member includes steel, aluminum or wood.

[0091] In some embodiments, the first support component 330 may be a rigid connecting plate or a seamless steel pipe. For example, the rigid connecting plate includes a steel plate, and the steel plate or the seamless steel pipe may be manufactured according to the shape required for actual use.

[0092] In some embodiments, pultrusion may be used to manufacture the first connecting component 300, and the first support component 330 is embedded into the first connecting component 300. For example, a first support component 330 made of a rigid material is embedded into the first connecting component 300 made of glass fiber reinforced plastics, so that the mechanical property of the first connecting component 300 can be enhanced, the bending resistance of the first connecting component 300 can be improved, and the fastening force of the first fastening portion 340 can be increased.

[0093] In some embodiments of the present disclosure, adjacent side plates 200 are connected by the first connecting component 300, the first connecting component 300 is a plastic member, and the plastic member has relatively low thermal conductivity, thereby improving the heat insulation effect of the box 700. Additionally, a first heat insulation portion 320 is arranged on one side of the first connecting component 300 proximal to the internal space of the box 700, so that the heat insulation effect of the box 700 is further improved, and the thermal insulation effect of the box 700 is enhanced. Furthermore, the first connecting component 300 is configured as a plastic member, and the first support component 330 is configured as a rigid member, so that the structural strength of the box 700 can be improved and the manufacturing cost can be reduced.

[0094] FIG. 11 is a sectional view of a second connecting component and a plurality of sub-side plates according to some embodiments. FIG. 12 is another structural diagram of a second connecting component according to some embodiments.

[0095] In some embodiments, as shown in FIG. 11 and FIG. 12, the connecting assembly 3000 further includes at least one second connecting component 3001, and the at least one second connecting component 3001 is a plastic member and connects two adjacent and coplanar sub-side plates. For example, the sub-side plates include a first sub-side plate 250, a second sub-side plate 260 and a third sub-side plate 270.

[0096] In some embodiments, as shown in FIG. 11 and FIG. 12, the second connecting component 3001 includes a second connecting body 3500 and a second insertion portion 3100. The second insertion portion 3100 is arranged on one side of the second connecting body 3500 distal to the box 700.

[0097] In some embodiments, as shown in FIG. 12, the second insertion portion 3100 includes a second reinforcing portion 3600. The second reinforcing portion 3600 is connected to the second connecting body 3500, and the second insertion portion 3100 is surrounded by the second reinforcing portion 3600 and the second connecting body 3500.

[0098] In some embodiments, as shown in FIG. 11, the second insertion portion 3100 further includes a second insertion cavity 3101. The second insertion cavity 3101 is surrounded by the second reinforcing portion 3600 and the second connecting body 3500.

[0099] In some embodiments, as shown in FIG. 11, the second connecting component 3100 further includes a plurality of second fastening portions 3400. One second fastening portion 3400 of the plurality of second fastening portions 3400 passes through the sub-side plate and extends into the second insertion portion 3100.

[0100] In some embodiments, as shown in FIG. 12, the second reinforcing portion 3600 includes a plurality of third sub-reinforcing portions 3630 and a fourth sub-reinforcing portion 3640. The plurality of third sub-reinforcing portions 3630 are respectively connected to the second connecting body 3500 and inclined relative to a central axis of the second insertion portion 3100. The fourth sub-reinforcing portion 3640 is transversely connected between the plurality of third sub-reinforcing portions 3630.

[0101] In some embodiments, as shown in FIG. 11 and FIG. 12, the second connecting component 3001 further includes a second heat insulation portion 3200. The second heat insulation portion 3200 is arranged in the second connecting body 3500 and separated from the second insertion portion 3100. Relative to the second insertion portion 3100, the second heat insulation portion 3200 is closer to the interior of the box 700. The second heat insulation portion 3200 is configured to prevent heat transfer between the interior and the exterior of the box 700, thereby achieving heat insulation inside the box 700.

[0102] In some embodiments, the second heat insulation portion 3200 is a heat insulation cavity, and the heat insulation cavity is filled with a heat insulation material to achieve heat insulation, thereby achieving heat insulation inside the box 700. For example, the heat insulation material includes polyurethane or rock wool.

[0103] In some embodiments, as shown in FIG. 12, the second connecting body 3500 includes a plurality of third inclined portions 3510. The plurality of third inclined portions 3510 are a plurality of surfaces of the second connecting body 3500 proximal to the adjacent sub-side plates and are inclined relative to the direction from the interior to the exterior of the box 700.

[0104] In some embodiments, as shown in FIG. 11 and FIG. 12, the spacing D2 between the plurality of third inclined portions 3510 decreases in the direction from the interior to the exterior of the box 700. In this way, the area of one side of the second heat insulation portion 3200 proximal to the internal space of the box 700 can be increased, thereby improving the heat insulation effect.

[0105] In some embodiments, as shown in FIG. 12, the second connecting component 3001 further includes a second snap-fitting portion 3700. The second snap-fitting portion 3700 is arranged on one side of a connection portion between the plurality of third sub-reinforcing portions 3630 and the fourth sub-reinforcing portion 3640 proximal to the sub-side plate. The second snap-fitting portion 3700 is a snap-fitting groove, and the snap-fitting groove is arc-shaped or semi-circular.

[0106] In some embodiments, as shown in FIG. 2, the at least one second connecting component 3001 includes a plurality of second connecting components 3001, and the connecting assembly 3000 further includes a second connector 600. One end of the second connector 600 is inserted into the second insertion portion 3100 of the second connecting component 3001, and the other end of the second connector 600 is connected to the first insertion component 300. For example, the second connector 600 is a straight connector. One end of the straight connector is provided with a connecting member, and the connecting member is inserted into the second insertion portion 3100. The other end of the straight connector is provided with a boss portion, and the boss portion is provided with a locking hole so as to be connected to the first connecting component 300 through a screw.

[0107] The structure of the sub-side plate will be described below by taking the first sub-side plate 201 as an example.

[0108] In some embodiments, as shown in FIG. 11, the first sub-side plate 201 includes a third connecting plate 2110. The third connecting plate 2110 is a rigid member, and the third connecting plate 2110 serves as an inner wall of the first sub-side plate 201.

[0109] In some embodiments, as shown in FIG. 11, the first sub-side plate 201 further includes a fourth connecting plate 2120. The fourth connecting plate 2120 is a rigid member. The fourth connecting plate 2120 serves as an outer wall of the first sub-side plate 201 and is spaced apart from the third connecting plate 2110. In an extending direction of the sub-side plate, a length of the fourth connecting plate 2120 is greater than that of the third connecting plate 2110.

[0110] In some embodiments, as shown in FIG. 11, the third connecting plate 2110 includes a fourth bent portion 2101. One end of the third connecting plate 2110 proximal to the second connecting component 3001 is bent toward the fourth connecting plate 2120 to form the fourth bent portion 2101.

[0111] In some embodiments, as shown in FIG. 11, the fourth connecting plate 2120 includes a fifth bent portion 2102. One end of the fourth connecting plate 2120 proximal to the second connecting component 3001 is bent toward the third connecting plate 2110 to form the fifth bent portion 2102.

[0112] It should be noted that the fourth bent portion 2101 and the fifth bent portion 2102 may be rigid members, respectively. For example, materials of the fourth bent portion 2101 and the fifth bent portion 2102 are one of galvanized steel, color-coated steel or stainless steel, respectively.

[0113] In some embodiments, as shown in FIG. 11, the sub-side plate further includes a second thermal insulation member 2302. The second thermal insulation member 2302 is arranged around the third connecting plate 2110 and the fourth connecting plate 2120, and is connected to the second connecting component 3100. The second thermal insulation member 2302 is configured to provide thermal insulation and seal a connection portion between the second connecting component 3001 and the sub-side plate. A second cavity 2301 is surrounded by the third connecting plate 2110, the fourth connecting plate 2120 and the second thermal insulation member 2302, and the second cavity 2301 is filled with a heat insulation material to achieve the thermal insulation effect of the sub-side plate. The second thermal insulation member 2302 may be a plastic member or a thermosetting member.

[0114] In some embodiments, as shown in FIG. 11, the second thermal insulation member 2302 includes a second thermal insulation body 2310. The second thermal insulation body 2310 includes a fourth inclined portion 2320, and the fourth inclined portion 2320 is a surface of the second thermal insulation body 2310 proximal to the second connecting component 3001. The fourth inclined portion 2320 is substantially parallel to one third inclined portion 3510 of the plurality of third inclined portions 3510 and fits the third inclined portion 3510.

[0115] In some embodiments, as shown in FIG. 11, the second thermal insulation member 2302 further includes a second extension portion 2330. One part of one side of the second thermal insulation body 2310 distal to the second cavity 2301 extends in a direction distal to the second cavity 2301 to form the second extension portion 2330. The fifth bent portion 2102 wraps one end of the second extension portion 2330 distal to the second cavity 2301 to enhance the strength of the second thermal insulation member 2302.

[0116] In some embodiments, as shown in FIG. 11, the second thermal insulation member 2302 further includes a sixth bent portion 2360. The sixth bent portion 2360 is arranged on one side of the second thermal insulation body 2310 distal to the second connecting component 3001. The sixth bent portion 2360 extends in a direction distal to the second connecting component 3001 and is bent toward the third connecting plate 2110 to form the sixth bent portion 2360. The sixth bent portion 2360 is snap-fitted to the fourth bent portion 2101.

[0117] In some embodiments, as shown in FIG. 11, the second thermal insulation member 2302 further includes a plurality of fourth sealing portions 2340. The plurality of fourth sealing portions 2340 are arranged on the fourth inclined portion 2320 and are arranged at equal intervals along an extending direction of the fourth inclined portion 2320. The plurality of fourth sealing portions 2340 abut against the third inclined portion 3510.

[0118] In some embodiments, the plurality of fourth sealing portions 2340 may be semi-circular or arc-shaped, respectively.

[0119] In this way, when the second connecting component 3001 is arranged between two sub-side plates, the plurality of fourth inclined portions 2320 fits the plurality of third inclined portions 3510 to extrude the fourth sealing portions 2340, so that the sealing effect of the box 700 can be improved.

[0120] In some embodiments, as shown in FIG. 11, the second thermal insulation member 2302 further includes a fifth sealing portion 2350. The fifth sealing portion 2350 is arranged at one end of the fourth inclined portion 2320 distal to the box 700. The fifth sealing portion 2350 is inclined relative to the direction from the interior to the exterior of the box 700 and is snap-fitted to the second snap-fitting portion 3700 to perform sealing.

[0121] It should be noted that the fourth sealing portion 2340 and the fifth sealing portion 2350 have flexibility, respectively.

[0122] When the internal pressure of the box 700 is less than or greater than the external pressure, the fifth sealing portion 2350 may be snap-fitted to the second snap-fitting portion 3700 respectively to achieve the sealing effect for the box 700.

[0123] In some embodiments of the present disclosure, a material of the second thermal insulation member 2302 may be polyvinyl chloride, and a hardness of the second thermal insulation body 2310 is greater than that of the fourth sealing portion 2340 and the fifth sealing portion 2350. In this way, the second thermal insulation member 2302 is manufactured by an extrusion process, so that the structural strength of the sub-side plate surrounded by the second thermal insulation member 2302 can be enhanced, and the sealing effect of the box 700 can be improved. It should be noted that the material of the second thermal insulation member 2302 may also be polyvinyl chloride, polyphenylene sulfide, polyvinyl alcohol, polypropylene or polyethylene.

[0124] In some embodiments, as shown in FIG. 11, the second thermal insulation member 2302 further includes a sixth sealing portion 4000. The sixth sealing portion 4000 is arranged between the second extension portion 2330 and the first reinforcing portion 360, and is configured to seal a connection portion between the second connecting component 3001 and the second thermal insulation member 2302. A material of the sixth sealing portion 4000 may be soft polyurethane. The soft polyurethane has good elasticity and stability, is not easily deformed or aged, and can improve the sealing effect between the second thermal insulation member 2302 and the second connecting component 3001.

[0125] In some embodiments of the present disclosure, the fourth sealing portion 2340, the fifth sealing portion 2350, the second snap-fitting portion 3700 and the sixth sealing portion 4000 are provided to form a multi-layer sealing structure, so that the sealing effect of the box 700 can be improved. Since the fourth sealing portion 2340, the fifth sealing portion 2350, the second snap-fitting portion 3700 and the sixth sealing portion 4000 may be formed by the second thermal insulation member 2302 and the second connecting component 3001, it is unnecessary to perform adhesive sealing at the sub-side plate and the second connecting component 3001, thereby avoiding the problem of low production efficiency caused by the need for adhesive sealing in the combined air-conditioning unit 1000 and improving the production efficiency of the combined air-conditioning unit 1000.

[0126] In some embodiments, as shown in FIG. 12, the connecting assembly 3000 further includes a second support component 3300. The second support component 3300 is arranged on the second connecting component 3001 and configured to enhance the strength of the second connecting component 3001.

[0127] The position and effect of the second support component 3300 are similar to those of the first support component 330, which can be referenced to the above description and will not be repeated here.

[0128] In some embodiments of the present disclosure, adjacent sub-side plates are connected by the second connecting component 3001, and the second connecting component 3001 is a plastic member. The plastic member has low thermal conductivity, thereby improving the heat insulation effect of the box 700. In addition, a second heat insulation portion 3200 is arranged on one side of the second connecting component 3001 proximal to the internal space of the box 700, so that the heat insulation effect of the box 700 is further improved, and the thermal insulation effect of the box 700 is enhanced. Furthermore, the second connecting component 3001 is configured as a plastic member, and the second support component 3300 is configured as a rigid member, so that the structural strength of the box 700 can be improved and the manufacturing cost can be reduced.

[0129] Those skilled in the art will understand that the scope of the present disclosure is not limited to the above specific embodiments, and certain elements of the embodiments may be modified and replaced without departing from the spirit of the present application. The scope of the present application is limited by the appended claims.

Claims

1. A combined air-conditioning unit, comprising:

a box, comprising a plurality of side plates and surrounded by the plurality of side plates;

a combined body, arranged in the box and comprising a plurality of functional sections, wherein the plurality of functional sections have different functions, and the combined body is configured to combine the plurality of functional sections to perform cooling or heating; and

a connecting assembly, comprising:

at least one first connecting component, being a plastic member and connecting adjacent side plates of the plurality of side plates, wherein one of the at least one first connecting component comprises:

a first connecting body,

a first insertion portion arranged on a side of the first connecting body distal to an interior of the box, and

a first heat insulation portion arranged in the first connecting body and configured to prevent heat transfer between an interior and an exterior of the box, so as to insulate the interior of the box; and

a first support component, being a rigid member, arranged on the first insertion portion and configured to enhance the structural strength of the first connecting component.

2. The combined air-conditioning unit according to claim 1, wherein each side plate comprises:

a first connecting plate being a rigid member and serving as an inner wall of the side plate;

a second connecting plate being a rigid member, serving as an outer wall of the side plate, and spaced apart from the first connecting plate; and

a first thermal insulation member arranged between the first connecting plate and the second connecting plate, surrounding the first connecting plate and the second connecting plate, connected to the first connecting component and configured to provide thermal insulation and seal a gap at a connection portion between the first connecting component and the side plate,

a first cavity being surrounded by the first connecting plate, the second connecting plate and the first thermal insulation member, and the first cavity being filled with a heat insulation material.

3. The combined air-conditioning unit according to claim 2, wherein the first insertion portion comprises:

a first reinforcing portion connected to the first connecting body; and

a first insertion cavity surrounded by the first reinforcing portion and the first connecting body.

4. The combined air-conditioning unit according to claim 3, wherein the first reinforcing portion comprises:

a first sub-reinforcing portion, one end of the first sub-reinforcing portion being connected to the first connecting body; and

a second sub-reinforcing portion, the other end of the first sub-reinforcing portion being connected to one end of the second sub-reinforcing portion, the other end of the second sub-reinforcing portion being connected to the first connecting body, and an included angle being formed between the first sub-reinforcing portion and the second sub-reinforcing portion.

5. The combined air-conditioning unit according to any one of claims 2 to 4, wherein

the first connecting body comprises a plurality of first inclined portions, and the plurality of first inclined portions are a plurality of surfaces of the first connecting body proximal to the adjacent side plates and are inclined relative to a direction from the interior to the exterior of the box, respectively; and

wherein the first thermal insulation member comprises a first thermal insulation body, the first thermal insulation body comprises a second inclined portion, the second inclined portion is a surface of the first thermal insulation body proximal to the first connecting component, and the second inclined portion is parallel to and fits one of the plurality of first inclined portions.

6. The combined air-conditioning unit according to claim 5, wherein a spacing between the plurality of first inclined portions increases in the direction from the interior to the exterior of the box.

7. The combined air-conditioning unit according to claim 5 or 6, wherein
the first thermal insulation member further comprises a plurality of first sealing portions, the plurality of first sealing portions are arranged on the second inclined portion and arranged at equal intervals along an extension direction of the second inclined portion, and the plurality of first sealing portions abut against the first inclined portion.

8. The combined air-conditioning unit according to any one of claims 5 to 7, wherein

the first connecting component further comprises a first snap-fitting portion, the first snap-fitting portion is arranged on a side of a connection portion between the first connecting body and the first reinforcing portion proximal to the side plate; and

wherein the first thermal insulation member further comprises a second sealing portion, the second sealing portion is arranged at one end of the second inclined portion distal to the box, and the second sealing portion is inclined relative to the direction from the interior to the exterior of the box and snap-fitted to the first snap-fitting portion.

9. The combined air-conditioning unit according to any one of claims 5 to 8, wherein the first thermal insulation member further comprises:

a first extension portion, one part of one side of the first thermal insulation body distal to the first cavity extending in a direction distal to the first cavity to form the first extension portion; and

a third sealing portion, arranged between the first extension portion and the first reinforcing portion and configured to seal a gap at a connection portion between the first connecting component and the side plate.

10. The combined air-conditioning unit according to claim 9, wherein

the first connecting plate comprises a first bent portion, and one end of the first connecting plate proximal to the first connecting component is bent toward a direction proximal to the second connecting plate to form the first bent portion;

wherein a length of the second connecting plate is greater than that of the first connecting plate in an extension direction of the side plate, wherein the second connecting plate comprises a second bent portion, one end of the second connecting plate proximal to the first connecting component is bent toward a direction proximal to the first connecting plate to form the second bent portion, and the second bent portion wraps one end of the first extension portion distal to the first cavity; and

wherein the first thermal insulation member further comprises a third bent portion, the third bent portion is arranged on one side of the first thermal insulation body distal to the first connecting component, the third bent portion extends in a direction distal to the first connecting component and is bent toward the direction proximal to the first connecting plate, and the third bent portion is snap-fitted to the first bent portion.

11. The combined air-conditioning unit according to any one of claims 2 to 9, wherein the first connecting assembly further comprises a first fastening portion; and the first fastening portion passes through the side plate, is inserted into the first insertion portion and is connected to the first support component, so that the first fastening portion connects the side plate and the first connecting component.

12. The combined air-conditioning unit according to any one of claims 1 to 11, wherein the first connecting body further comprises a transition surface, the transition surface is a side surface of the first connecting body proximal to the interior of the box, and the transition surface is arc-shaped and recessed toward a direction proximal to the first insertion portion.

13. The combined air-conditioning unit according to any one of claims 1 to 12, wherein the at least one first connecting component comprises a plurality of first connecting components;
wherein the connecting assembly further comprises a first connector, and the first connector is inserted into the first insertion portion of the converged first connecting components to connect the converged first connecting components; and the converged first connecting components comprise three first connecting components that connect adjacent side plates of three mutually perpendicular side plates.

14. The combined air-conditioning unit according to any one of claims 1 to 13, wherein the adjacent side plates comprise two mutually perpendicular side plates.

15. The combined air-conditioning unit according to any one of claims 1 to 14, wherein one of the plurality of side plates comprises a plurality of sub-side plates, and the connecting assembly further comprises:

at least one second connecting component, being a plastic member and connecting two adjacent and coplanar sub-side plates, one of the at least one second connecting component comprising:

a second connecting body,

a second insertion portion arranged on one side of the second connecting body distal to the interior of the box, and

a second heat insulation portion arranged in the second connecting body and configured to prevent heat transfer between the interior and the exterior of the box, so as to insulate the interior of the box; and

a second support component, being a rigid member, arranged on the second insertion portion and configured to enhance the structural strength of the second connecting component.

16. The combined air-conditioning unit according to claim 15, wherein the second insertion portion comprises:

a second reinforcing portion connected to the second connecting body and comprising:

a plurality of third sub-reinforcing portions respectively connected to the second connecting body and inclined relative to a central axis of the second insertion portion, and

a fourth sub-reinforcing portion connected between the plurality of third sub-reinforcing portions and parallel to an arrangement direction of the two adjacent coplanar sub-side plates; and

a second insertion cavity surrounded by the second reinforcing portion and the second connecting body.

17. The combined air-conditioning unit according to claim 16, wherein each sub-side plate comprises:

a third connecting plate, being a rigid member and serving as an inner wall of the sub-side plate;

a fourth connecting plate, being a rigid member and serving as the outer wall of the sub-side plate, and spaced apart from the third connecting plate; and

a second thermal insulation member, arranged between the third connecting plate and the fourth connecting plate, surrounding the third connecting plate and the fourth connecting plate, connected to the second connecting component, and configured to provide thermal insulation and seal a gap at a connection portion between the second connecting component and the side plate,

a second cavity being surrounded by the third connecting plate, the fourth connecting plate and the second thermal insulation member, and the second cavity being filled with a heat insulation material.

18. The combined air-conditioning unit according to claim 17, wherein the second connecting body comprises a plurality of third inclined portions, and the third inclined portions are a plurality of surfaces of the second connecting body proximal to the adjacent side plates and are respectively inclined relative to the direction from the interior to the exterior of the box; and
wherein the second thermal insulation member comprises a second thermal insulation body, the second thermal insulation body comprises a fourth inclined portion, the fourth inclined portion is a surface of the second thermal insulation body proximal to the second connecting component, and the fourth inclined portion is parallel to one third inclined portion of the plurality of third inclined portions and fits the fourth inclined portion.

19. The combined air-conditioning unit according to claim 18, wherein a spacing between the plurality of third inclined portions decreases in the direction from the interior to the exterior of the box.

20. The combined air-conditioning unit according to claim 18 or 19, wherein
the thermal insulation member further comprises a plurality of fourth sealing portions, the plurality of fourth sealing portions are arranged on the fourth inclined portion and arranged at equal intervals in an extension direction of the fourth inclined portion, and the plurality of fourth sealing portions abut against the third inclined portion.

21. The combined air-conditioning unit according to any one of claims 18 to 20, wherein the second connecting component further comprises a second snap-fitting portion, the second snap-fitting portion is arranged on one side of a connection portion between the plurality of third sub-reinforcing portions and the fourth sub-reinforcing portion proximal to the sub-side plate; and
wherein the second thermal insulation member further comprises a fifth sealing portion, the fifth sealing portion is arranged at one end of the fourth inclined portion distal to the box, and the fifth sealing portion is inclined relative to the direction from the interior to the exterior of the box and snap-fitted to the second snap-fitting portion.

22. The combined air-conditioning unit according to any one of claims 18 to 21, wherein the second thermal insulation member further comprises:

a second extension portion, one part of one side of the second thermal insulation body distal to the second cavity extending in a direction distal to the second cavity to form the second extension portion; and

a sixth sealing portion arranged between the second extension portion and the second reinforcing portion and configured to seal a gap at a connection portion between the second connecting component and the sub-side plate.

23. The combined air-conditioning unit according to claim 22, wherein the third connecting plate comprises a fourth bent portion, and one end of the third connecting plate proximal to the second connecting component is bent toward a direction proximal to the fourth connecting plate to form the fourth bent portion;

wherein a length of the fourth connecting plate is greater than that of the third connecting plate in the extension direction of the side plate, the fourth connecting plate comprises a fifth bent portion, one end of the fourth connecting plate proximal to the second connecting component is bent toward a direction proximal to the third connecting plate to form the fifth bent portion, and the fifth bent portion wraps one end of the second extension portion distal to the second cavity; and

wherein the second thermal insulation member further comprises a sixth bent portion, the sixth bent portion is arranged on one side of the second thermal insulation body distal to the second connecting component, the sixth bent portion extends in a direction distal to the second connecting component and is bent toward a direction proximal to the third connecting plate, and the sixth bent portion is snap-fitted to the fourth bent portion.

24. The combined air-conditioning unit according to any one of claims 16 to 23, wherein the second connecting assembly further comprises a second fastening portion, and the second fastening portion passes through the sub-side plate, is inserted into the second insertion portion, and is connected to the second support component, so that the second fastening portion connects the sub-side plate and the second connecting component.

25. The combined air-conditioning unit according to any one of claims 15 to 24, wherein the second connecting assembly further comprises a second connector, one end of the second connector is inserted into the second insertion portion of the second connecting component, and the other end of the second connector is connected to the first insertion component.

Drawing