Shell and heat pump equipment

Abstract

The utility model discloses a shell and heat pump equipment, the shell comprises a chassis and a frame assembly, the chassis comprises a bottom plate and a side wall structure, the side wall structure is annular and is connected to the upper side of the chassis, the bottom plate protrudes out of the outer side of the side wall structure, the side wall structure comprises an annular plate and a step part, and the step part is located on the outer side of the annular plate; the frame assembly is arranged around the periphery of the annular plate and fixedly connected with the chassis, the frame assembly comprises a side plate and a frame, the frame is connected to the inner side of the side plate, and the frame abuts against the top face of the step part. The chassis of the shell can provide stable support for the frame assembly, deformation is prevented, and the structural stability is good.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a housing and heat pump equipment. Background Technology

[0002] The housing of a heat pump unit consists of a chassis and side panels. Conventionally, both the chassis and side panels are sheet metal parts. The chassis has an upward-bent flange, and the side panels are connected to the outer surface of this flange. However, since components such as air ducts and electrical control boxes are installed on the inner side of the side panels, the flange of the chassis cannot support the weight of the side panels, leading to deformation of the flange or side panels and poor overall structural stability of the housing. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a housing whose chassis can provide stable support for the frame assembly, prevent deformation, and has good structural stability.

[0004] This utility model also provides a heat pump device having the above-described housing.

[0005] According to a first aspect of the present invention, a housing includes a chassis, a bottom plate, and a side structure. The side structure is annular and connected to the upper side of the chassis. The bottom plate protrudes from the outer side of the side structure. The side structure includes an annular plate and a stepped portion, the stepped portion being located outside the annular plate. A frame assembly is arranged around the outer periphery of the annular plate and fixedly connected to the chassis. The frame assembly includes a side plate and a frame. The frame is connected to the inner side of the side plate and abuts against the top surface of the stepped portion.

[0006] The housing according to the first aspect of this utility model has at least the following beneficial effects: by providing a frame connected to the inner side of the side plate, the structural stability of the side plate can be enhanced, preventing deformation of the side plate, and facilitating the installation of components such as the air duct structure and electrical control box located inside the housing via the frame. Simultaneously, by having the frame abut against the top of the stepped portion of the chassis, the stepped portion provides support for the frame, enabling the chassis to stably support the frame assembly and reducing the force exerted on the side plate, thereby further reducing the risk of side plate deformation and effectively improving the overall structural stability of the housing.

[0007] According to some embodiments of the present invention, the frame includes a plurality of columns, which are arranged at intervals along the circumference of the annular plate. The annular plate is provided with a plurality of clearance grooves, which are recessed toward the inner side of the annular plate. The ends of the plurality of columns are correspondingly accommodated in the plurality of clearance grooves.

[0008] According to some embodiments of the present invention, the housing further includes a sealing element arranged around the outer periphery of the side structure and sandwiched between the side structure and the side plate.

[0009] According to some embodiments of the present invention, the outer peripheral wall of the side structure is provided with a mounting groove, the mounting groove is arranged along the circumference of the side structure, and the sealing element is accommodated in the mounting groove.

[0010] According to some embodiments of the present invention, the number of side plates is at least two, and the at least two side plates are connected in sequence in a ring shape along the circumference of the chassis. One of the side plates is provided with a positioning part at its lower end, and the base plate is provided with a positioning groove. The positioning part is inserted into the positioning groove.

[0011] According to some embodiments of the present invention, the number of frames is at least two, and the number of frames is less than or equal to the number of side plates. At least two frames are respectively connected to the inner side of at least two side plates, and at least two frames are arranged and connected along the circumference of the chassis.

[0012] According to some embodiments of the present invention, a heat insulation layer is provided between the side plate and the frame.

[0013] According to some embodiments of the present invention, the upper end of the annular plate is provided with an extension portion, the extension portion protrudes outward from the outer side of the annular plate, and the inner wall surface of the extension portion is inclined from top to bottom towards the inner side of the annular plate, the extension portion being used to guide condensate.

[0014] According to some embodiments of the present invention, the side structure further includes a plurality of supporting ribs, which are connected between the bottom plate and the inner sidewall of the annular plate, and the plurality of supporting ribs are arranged at intervals along the circumference of the chassis.

[0015] The heat pump device according to a second aspect embodiment of the present invention includes the housing of the first aspect embodiment of the present invention.

[0016] The heat pump device according to the second aspect embodiment of this utility model has at least the following beneficial effects: Because the heat pump device uses the aforementioned housing, the frame connected to the inner side of the side plate enhances the structural stability of the side plate, prevents deformation, and allows for the installation of components such as the air duct structure and electrical control box located inside the housing via the frame. Simultaneously, the frame abuts against the top of the stepped portion of the chassis, providing support through the stepped portion, enabling the chassis to stably support the frame assembly and reducing the force exerted on the side plate, thereby further reducing the risk of side plate deformation and effectively improving the overall structural stability of the housing.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of the shell structure in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the chassis structure in an embodiment of this utility model;

[0021] Figure 3 This is an exploded view of the shell in an embodiment of this utility model;

[0022] Figure 4 This is a front sectional view of the shell in an embodiment of this utility model;

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This is a right view of the third side plate in an embodiment of this utility model.

[0025] Figure label:

[0026] Chassis 100; Base plate 110; Positioning groove 111; Side structure 120; Annular plate 121; Clearance groove 1211; Extension 1212; Slot 1213; Cable clamp 1214; Step 122; Mounting groove 123; Support rib 124;

[0027] Frame assembly 200; first side panel 210; second side panel 220; third side panel 230; positioning part 231; latch 232; first frame 240; second frame 250; column 251; beam 252; heat insulation layer 260; decorative panel 270;

[0028] Seal 300;

[0029] The load-bearing plate is 400mm thick; the insulation layer is 410mm thick. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, assembling, and cooperating should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] Reference Figures 1 to 6 As shown, the first aspect of this utility model provides a housing for use in heat pump equipment. The housing serves as the outer shell of the heat pump equipment, used to install and support components such as the heat exchanger, air duct structure, pump body, fan, and electrical control box, and provides protection. The heat pump equipment mentioned here includes heat pump air conditioners, heat pump water heaters, and other similar devices.

[0035] Reference Figure 1 As shown, the housing includes a chassis 100 and a frame assembly 200. The lower end of the frame assembly 200 is fixedly connected to the chassis 100 to define an inner cavity with an opening orientation. Components of the heat pump equipment, such as the heat exchanger, duct structure, pump body, fan, and electrical control box, are installed within this inner cavity. It is also readily understood that the housing includes a top cover (not shown in the figure), which is installed on the upper end of the frame assembly 200 to seal the inner cavity.

[0036] Reference Figure 2 As shown, the chassis 100 includes a base plate 110 and a side structure 120. Specifically, the base plate 110 is a flat plate, and the side structure 120 is annular and connected to the upper surface of the base plate 110. All four sides of the base plate 110 protrude beyond the outer side of the side structure 120. Thus, the portion of the base plate 110 protruding from the side structure 120 forms a space between itself and the side structure 120 for positioning and installing the side structure 120, facilitating assembly.

[0037] Reference Figure 2As shown, it can be understood that, specifically, the side structure 120 includes an annular plate 121 and a stepped portion 122. The annular plate 121 is connected to the upper end face of the base plate 110 and extends upward. The stepped portion 122 is located outside the annular plate 121 and connects the annular plate 121 and the base plate 110. Generally, the minimum distance between the side wall of the stepped portion 122 facing away from the annular plate 121 and the annular plate 121 is less than the minimum distance between the outer peripheral wall of the base plate 110 and the annular plate 121. That is, the base plate 110 protrudes outward from the stepped portion 122. In the top view, the stepped portion 122 can be annular, straight, U-shaped, etc.

[0038] Reference Figure 1 and Figure 3 As shown, the frame assembly 200 has a cylindrical structure and is arranged around the outer periphery of the annular plate 121. Specifically, the frame assembly 200 is installed in the space between the portion of the base plate 110 that protrudes from the side structure 120 and the side structure 120. The frame assembly 200 includes a side plate and a frame. The side plate is a sheet metal part, and the frame includes multiple columns 251 and crossbeams 252. The multiple columns 251 are spaced apart circumferentially along the annular plate 121, and the multiple crossbeams 252 are spaced apart vertically. The crossbeams 252 are welded and fixed to the columns 251, giving the frame good structural stability. Typically, the height of the frame is the same as the height of the side plate, and the frame is connected to the inner side of the side plate. For example, the frame and side plate are fixed together by fasteners such as screws or rivets, or by welding. Therefore, by connecting the frame to the side plate, the rigidity of the side plate can be improved, the risk of deformation can be reduced, and the structural stability of the side plate can be effectively improved, thereby contributing to the overall structural stability of the shell.

[0039] Understandably, the frame is located inside the shell. In addition to improving the rigidity of the side plates, the frame also serves as a mounting base for internal components of the heat pump equipment. For example, the air duct structure and electrical control box inside the heat pump equipment are fixedly installed on the frame.

[0040] Reference Figure 1 and Figure 5As shown, it can be understood that the lower end of the frame assembly 200 is connected to the chassis 100. Specifically, the lower end of the frame abuts against the top surface of the step portion 122, and the side plate covers the outer periphery of the step portion 122. The side plate and the side structure 120 are fixedly connected by fasteners such as screws or rivets, thus achieving a fixed connection between the frame assembly 200 and the chassis 100. Typically, the lower end of the side plate protrudes from the lower end surface of the frame, and the lower end of the side plate is spaced apart from the upper end surface of the base plate 110. Therefore, the step portion 122 provides support for the frame, enabling the chassis 100 to support the frame assembly 200. The step portion 122 and the frame have good structural stability and are not easily deformed, which helps to improve the support stability of the chassis 100 for the frame assembly 200, thereby improving the overall structural stability of the shell.

[0041] It is easy to understand that, since the lower end of the side plate is spaced apart from the upper end of the bottom plate 110, the bottom plate 110 does not directly apply force to the side plate, which helps to reduce the stress on the side plate, further reduce the risk of deformation of the side plate, and thus further improve the overall structural stability of the shell.

[0042] It is understood that in this embodiment, the chassis 100 is a plastic part, which is obtained by injection molding process. It is easy to form complex structures such as the side panel structure 120, and has good processability and is easy to process.

[0043] Understandably, during the operation of a heat pump, condensation typically forms on the outer wall of the heat exchanger inside the casing. This condensation drips onto the chassis 100 under gravity. Since the chassis 100 is made of plastic, and plastic has a low thermal conductivity, this reduces the efficiency of heat exchange between the bottom wall of the chassis 100 and the condensation inside the casing. In high-temperature and high-humidity external environments, this effectively reduces the risk of condensation forming on the bottom wall of the chassis 100. In low-temperature external environments, it effectively reduces the risk of the condensation inside the casing freezing.

[0044] Understandably, in addition, since the chassis 100 is made of plastic, and plastic has a low thermal conductivity, it can reduce the efficiency of heat exchange between the chassis 100 and the side panel, thereby effectively reducing the risk of condensation on the outer wall of the side panel in a high-temperature and high-humidity external environment.

[0045] Reference Figure 3 and Figure 4As shown, it can be understood that some components of the heat pump equipment are installed at the bottom of the inner cavity formed by the casing, such as the heat exchanger, pump body, and fan. To improve the installation stability of components such as the heat exchanger, pump body, and fan, the heat pump equipment also includes a support plate 400. The support plate 400 is a sheet metal part with good structural strength and rigidity. The support plate 400 is fixedly connected to the upper side of the chassis 100 and located inside the side structure 120. Components such as the heat exchanger, pump body, and fan are fixedly installed on the support plate 400, thereby meeting the installation stability requirements of the components inside the heat pump equipment.

[0046] Reference Figure 3 and Figure 4 As shown, it is understandable that the condensate generated by the heat exchanger mainly drips onto the support plate 400. To further reduce the efficiency of heat exchange between the bottom wall of the chassis 100 and the condensate inside the shell, an insulation layer 410 is sandwiched between the chassis 100 and the support plate 400. The insulation layer 410 is typically made of EPP foam material (i.e., polypropylene foam resin), which has good thermal insulation properties. This further reduces the risk of condensation on the bottom wall of the chassis 100 and effectively reduces the risk of condensate freezing inside the shell. Simultaneously, it also further reduces the risk of condensation on the outer wall of the side plates.

[0047] Reference Figure 2 and Figure 3 As shown, the annular plate 121 is provided with multiple clearance grooves 1211, which are recessed towards the inner side of the annular plate 121 and are spaced apart circumferentially along the annular plate 121. Correspondingly, the lower ends of the multiple columns 251 of the frame are respectively accommodated in the multiple clearance grooves 1211. Therefore, the contact area between the chassis 100 and the frame can be increased, which is beneficial to improving the installation stability of the frame assembly 200, thereby improving the overall structural stability of the housing. In addition, during the assembly of the housing, the multiple clearance grooves 1211 also serve as positioning marks for installing the frame assembly 200 onto the chassis 100, facilitating assembly by workers. Since the chassis 100 is a plastic part, it is easy to form the clearance grooves 1211 in the annular plate 121, improving machinability.

[0048] Reference Figure 2 and Figure 3 As shown, the chassis 100 also includes a slot 1213, which extends vertically through the chassis 100 and is located on the outer side of the annular plate 121, with the slot opening facing outwards. The slot 1213 is used to secure the wire clamp 1214, which in turn secures the power cord of the heat pump device. Similarly, because the chassis 100 is made of plastic, the slot 1213 can be easily formed within the chassis 100, improving its machinability.

[0049] It is understandable that because the annular plate 121 is provided with multiple clearance grooves 1211, the annular plate 121 forms a structure equivalent to a reinforcing rib at the clearance grooves 1211, which helps to improve the structural strength of the annular plate 121 and reduce the risk of deformation.

[0050] Reference Figure 2 As shown, the side structure 120 also includes multiple supporting ribs 124. These supporting members are connected between the upper surface of the base plate 110 and the inner wall of the annular plate 121, with the multiple supporting ribs 124 arranged at intervals along the circumference of the chassis 100. Therefore, this further improves the structural stability of the annular plate 121 and reduces the risk of deformation. It is easy to understand that the longitudinal section of the supporting ribs 124 is triangular, which, while meeting the requirements for improving the structural stability of the annular plate 121, helps to reduce the amount of material used.

[0051] Reference Figure 1 and Figure 3 As shown, it can be understood that the number of side plates is at least two. In this embodiment, the number of side plates is three, namely a first side plate 210, a second side plate 220, and a third side plate 230. The first side plate 210, the second side plate 220, and the third side plate 230 are connected sequentially along the circumference of the chassis 100 to form a cylindrical structure, i.e., an annular structure. For example, the first side plate 210 and the second side plate 220 are fixedly connected by screws, and the second side plate 220 and the third side plate 230, and the third side plate 230 and the first side plate 210 are connected by locking hooks. Specifically, in the top view, the first side plate 210 and the second side plate 220 are L-shaped, and the third side plate 230 is U-shaped. The first side plate 210 includes structures located on the left and rear sides of the chassis 100, the second side plate 220 includes structures located on the right and rear sides of the chassis 100, and the third side plate 230 includes structures located on the front, left, and right sides of the chassis 100. Therefore, the first side plate 210, the second side plate 220, and the third side plate 230 are all non-ring-shaped structures, facilitating individual processing. Simultaneously, the first side plate 210, the second side plate 220, and the third side plate 230 are all bent, effectively improving their structural strength. For aesthetic enhancement, a decorative panel 270 is also connected to the front of the third side plate 230.

[0052] In other embodiments, there may be two side panels, both of which are U-shaped in the top view, allowing them to be assembled into a cylindrical structure. Of course, there may also be four, five, or more side panels.

[0053] Reference Figure 1 and Figure 3As shown, it can be understood that the number of frames is at least two. In this embodiment, there are two frames, namely a first frame 240 and a second frame 250. The first frame 240 and the second frame 250 are connected sequentially along the circumference of the chassis 100. Specifically, in the top view, the first frame 240 and the second frame 250 are both L-shaped, wherein the first frame 240 includes the left and rear portions of the chassis 100, and the second frame 250 includes the right and rear portions of the chassis 100. Therefore, in the top view, the shape of the first frame 240 and the second frame 250 after connection is U-shaped. By setting the U-shaped assembly of the first frame 240 and the second frame 250, on the one hand, the assembly of the first frame 240 and the second frame 250 has good stability, and on the other hand, it can meet the installation requirements of the air duct structure and the electrical control box. Generally speaking, the air duct structure is installed in the left portion of the chassis 100 in the first frame 240, and the electrical control box is installed in the right portion of the chassis 100 in the second frame 250. Of course, the number of frames can be one, three or more, and they can be combined to form a U-shaped or ring-shaped structure in the top view.

[0054] Reference Figure 2 and Figure 3 As shown, it can be understood that, correspondingly, in the top view, the step portion 122 has a U-shaped shape, and the step portion 122 includes portions located on the left, right, and rear sides of the chassis 100. The first frame 240 and the second frame 250 respectively abut against the upper end face of the step portion 122, thereby reducing the volume of the step portion 122 and the amount of material used while ensuring that the step portion 122 provides stable support for the first frame 240 and the second frame 250.

[0055] Reference Figure 1 As shown, it can be understood that the first frame 240 is arranged correspondingly to the first side plate 210, and the second frame 250 is arranged correspondingly to the second side plate 220. That is to say, the first frame 240 is fixedly connected to the first side plate 210, and the second frame 250 is fixedly connected to the second side plate 220, which facilitates assembly.

[0056] Understandably, when assembling the housing, the first frame 240 is fixed to the inner side of the first side plate 210, the second frame 250 is fixed to the inner side of the second side plate 220, and the first side plate 210, the second side plate 220 and the third side plate 230 are connected in sequence to form a cylindrical structure, thereby assembling the frame assembly 200. The frame assembly 200 is then installed onto the chassis 100, and the side plates are fixedly connected to the side wall structure 120 by fasteners such as screws or rivets. The assembly process is simple and easy to operate.

[0057] Reference Figure 2 and Figure 6As shown, the base plate 110 is provided with a positioning groove 111, which extends from top to bottom through the upper and lower surfaces of the base plate 110 and is located on the outer side of the side structure 120. That is, the positioning groove 111 is located on the base plate 110 protruding from the side structure 120, and is located at the front end of the base plate 110. Correspondingly, the lower end of the third side plate 230 is provided with a positioning part 231, which is a downwardly extending plate structure. The positioning part 231 is inserted into the positioning groove 111, thereby positioning the third side plate 230. In other words, the chassis 100 and the frame assembly 200 are positioned through the cooperation of the positioning part 231 and the positioning groove 111. When the frame assembly 200 is installed onto the chassis 100, the structure of the positioning part 231 and the positioning groove 111 provides directional guidance for the assembly personnel, preventing reverse installation and providing a foolproof function, thus reducing assembly difficulty.

[0058] Reference Figure 4 and Figure 5 As shown, it can be understood that a heat insulation layer 260 is provided between the side panel and the frame. Similarly, the heat insulation layer 260 is made of EPP foam material (i.e., polypropylene foam resin) and has good heat insulation properties. Specifically, a heat insulation layer 260 is sandwiched between the first side panel 210 and the first frame 240, and a heat insulation layer 260 is also sandwiched between the second side panel 220 and the second frame 250. Since the frame is located inside the side panel, the frame temperature is lower during the operation of the heat pump equipment. Therefore, by providing the heat insulation layer 260, the heat exchange efficiency between the side panel and the frame can be reduced, thereby further reducing the risk of condensation on the outer wall of the side panel.

[0059] Reference Figures 2 to 5 As shown, the housing also includes a seal 300, which is configured as a sealing strip and is annular. The seal 300 is arranged around the outer periphery of the side frame structure 120; that is, the seal 300 is fitted around the outer periphery of the side frame structure 120 and sandwiched between the side frame structure 120 and the side plate. Therefore, by providing the seal 300, a seal can be achieved between the frame assembly 200 and the chassis 100, thereby improving the housing's sealing performance. It is easy to understand that, thanks to the base plate 110 protruding from the outer side of the side frame structure 120, the base plate 110 can, to a certain extent, support the sealing strip, preventing it from falling off and effectively improving sealing reliability.

[0060] Reference Figures 2 to 5As shown, it can be understood that the outer peripheral wall of the side structure 120 is provided with a mounting groove 123. Specifically, the mounting groove 123 is arranged circumferentially along the side structure 120, that is, the mounting groove 123 is annular. Thanks to the chassis 100 being a plastic part, it is easy to form the mounting groove 123 in the side structure 120, improving machinability. A portion of the mounting groove 123 is formed on the outer side wall of the stepped portion 122, and another portion is formed on the annular plate 121. The seal 300 is accommodated in the mounting groove 123, thereby enabling the seal 300 to be positioned via the mounting groove 123, facilitating the installation of the seal 300, and reducing the risk of the seal 300 falling off.

[0061] Reference Figure 2 As shown, it can be understood that, generally speaking, the front end of the heat exchanger is close to the front end of the annular plate 121. To prevent condensate from dripping onto the outside of the annular plate 121, an extension portion 1212 is provided at the front end of the annular plate 121. The extension portion 1212 is located at the upper end of the annular plate 121 and protrudes outward from the annular plate 121. The inner wall surface of the extension portion 1212 is inclined from top to bottom towards the inner side of the annular plate 121, and the upper end of the inner wall surface of the extension portion 1212 is farther from the center of the chassis 100 than the lower end. The extension portion 1212 is arranged correspondingly to the heat exchanger in the front-rear direction, and the extension portion 1212 is located inside the third side plate 230. Therefore, by providing the extension portion 1212, even if the condensate on the heat exchanger splashes outward, the extension portion 1212 can guide the splashed condensate to the inner side of the annular plate 121, thereby effectively preventing the condensate from overflowing.

[0062] The heat pump device according to the second aspect of this utility model includes the housing of the first aspect of this utility model. The heat pump device includes heat pump air conditioners, heat pump water heaters, and other similar equipment.

[0063] Since the heat pump equipment adopts all the technical solutions of the housing in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments.

[0064] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A housing, characterized in that, include: A chassis includes a bottom plate and a side structure, the side structure being annular and connected to the upper side of the chassis, the bottom plate protruding from the outer side of the side structure, and the side structure including an annular plate and a stepped portion, the stepped portion being located on the outer side of the annular plate; A frame assembly is arranged around the outer periphery of the annular plate and fixedly connected to the chassis. The frame assembly includes a side plate and a frame. The frame is connected to the inner side of the side plate and abuts against the top surface of the step portion.

2. The housing according to claim 1, characterized in that: The frame includes multiple columns, which are arranged at intervals along the circumference of the annular plate. The annular plate is provided with multiple clearance grooves, which are recessed towards the inner side of the annular plate. The ends of the multiple columns are correspondingly accommodated in the multiple clearance grooves.

3. The housing according to claim 1, characterized in that: The housing also includes a seal arranged around the outer periphery of the side structure and sandwiched between the side structure and the side plate.

4. The housing according to claim 3, characterized in that: The outer peripheral wall of the side structure is provided with a mounting groove, which is arranged along the circumference of the side structure, and the sealing element is accommodated in the mounting groove.

5. The housing according to claim 1, characterized in that: The number of side plates is at least two, and the at least two side plates are connected in sequence in a ring along the circumference of the chassis. One of the side plates has a positioning part at its lower end, and the base plate has a positioning groove. The positioning part is inserted into the positioning groove.

6. The housing according to claim 4, characterized in that: The number of frames is at least two, and the number of frames is less than or equal to the number of side panels. At least two frames are respectively connected to the inner side of at least two side panels, and at least two frames are arranged and connected along the circumference of the chassis.

7. The housing according to claim 1, 5 or 6, characterized in that: A heat insulation layer is provided between the side panel and the frame.

8. The housing according to claim 1, characterized in that: The upper end of the annular plate is provided with an extension portion, which protrudes outward from the annular plate, and the inner wall surface of the extension portion is arranged inclined from top to bottom towards the inner side of the annular plate. The extension portion is used to guide condensate.

9. The housing according to claim 1, characterized in that: The side structure also includes multiple support ribs, which are connected between the bottom plate and the inner sidewall of the annular plate, and the multiple support ribs are arranged at intervals along the circumference of the chassis.

10. A heat pump device, characterized in that, Includes the housing as described in any one of claims 1 to 9.

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