Refrigeration device

Abstract

The utility model provides a refrigerating device which comprises a shell, a cover plate, a hanging and leaning part and a matching part, the shell comprises a back plate and a bottom shell which are connected with each other, a mounting cavity with an opening is defined by the bottom shell, and the back plate is located above the opening; the cover plate covers the opening; the hanging part is arranged on one of the back plate and the cover plate; the matching part is arranged on the other one of the back plate and the cover plate; the hanging part is matched with the matching part, and the cover plate is hung on the back plate. The technical problems that an existing refrigerator cover plate is complex in installation and low in efficiency are solved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a refrigeration device. Background Technology

[0002] The compressor is a key component in the refrigeration system of refrigerators and other refrigeration devices, and it is usually installed in a pre-drilled cavity at the bottom of the refrigerator. To prevent accidents caused by people or animals touching the compressor, a cover is installed in the cavity.

[0003] Currently, the common installation method involves fixing the cover plate to the refrigerator body using multiple bolts. This method is complex and inefficient. Utility Model Content

[0004] This utility model provides a refrigeration device to solve the technical problems of complex and inefficient installation of existing refrigerator lids.

[0005] To achieve the above objectives, this application proposes a refrigeration device, comprising:

[0006] The housing includes a back plate and a bottom shell connected to each other, the bottom shell defining a mounting cavity with an opening, and the back plate being located above the opening;

[0007] A cover plate is used to seal the opening;

[0008] A mounting part is provided in one of the back plate and the cover plate; and,

[0009] A mating part is provided on the other of the back plate and the cover plate; the hanging part cooperates with the mating part, and the cover plate is suspended from the back plate.

[0010] Optionally, in one embodiment, the hanging part is located at the upper end of the cover plate, and the mating part is located at the lower end of the back plate.

[0011] Optionally, in one embodiment, the abutment extends from the upper end of the cover plate toward the back plate;

[0012] The mating part is a through hole located at the lower end of the back plate, and the hanging part is inserted into the through hole for mating.

[0013] Optionally, in one embodiment, the hanging part is arranged to gradually tilt downward in the direction close to the back plate.

[0014] Optionally, in one embodiment, the back plate has an adjacent region adjacent to the upper end of the through hole, the adjacent region gradually sloping from top to bottom away from the cover plate to form a guide slope.

[0015] Optionally, in one embodiment, the bottom shell has an overlapping portion opposite to the lower end of the back plate, the overlapping portion being recessed in a direction away from the through hole to form a recess, the recess and the back plate together defining a clearance space for accommodating the hanging part.

[0016] Optionally, in one embodiment, the distance between the surface of the recess and the back plate is the height of the clearance space, and the lower end of the clearance space is higher than the upper end of the clearance space; and / or,

[0017] The back plate has a lower region adjacent to the lower end of the through hole, and the projection of the recess on the back plate at least covers the through hole and the lower region.

[0018] Optionally, in one embodiment, the upper end of the cover plate arches away from the back plate to form an arched portion.

[0019] Optionally, in one embodiment, multiple hanging parts are provided, and the multiple hanging parts are spaced apart along the length direction of the cover plate;

[0020] The mating parts are provided in multiple ways, and each of the multiple mating parts corresponds to one of the multiple hooking parts.

[0021] Optionally, in one embodiment, the bottom shell includes two side supports extending in a vertical direction, the two side supports being disposed on both sides of the opening to form a portion of the opening's rim;

[0022] The cover plate is connected to the two side brackets on both sides by bolts.

[0023] Optionally, in one embodiment, one of the side supports is connected to the cover plate by one of the bolts.

[0024] Optionally, in one embodiment, the lower end of the cover plate is provided with an elastic buckle, and the lower end of the bottom shell is formed with a fastening part, wherein the elastic buckle engages with the fastening part.

[0025] Optionally, in one embodiment, the housing further includes two side plates disposed opposite to each other, the back plate and the bottom shell being located between the two side plates, wherein the side plate has a connecting end near the back plate, the connecting end forming a mounting groove facing the opening of the cover plate, the mounting groove extending vertically and penetrating the upper end surface of the side plate, and the side end of the back plate being inserted into the mounting groove;

[0026] The two sides of the cover plate extend toward the back plate to form insertion parts, which are inserted into the mounting groove for mating.

[0027] In the refrigeration device provided in this application, a hanging part and a mating part are respectively provided on the back plate and the cover plate. When installing the cover plate, the cover plate can be hung on the back plate by the cooperation of the hanging part and the mating part, thus realizing the installation of the cover plate. The installation is convenient and efficient. Moreover, due to the weight of the cover plate itself, the cover plate can be attached to the opening and fit against the bottom shell. In addition, this installation method avoids the need to drive bolts into the upper end of the cover plate, which can prevent the pipelines in the installation cavity from being damaged by bolts. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of an embodiment of the refrigeration device proposed in this application;

[0030] Figure 2 for Figure 1 A schematic diagram of the refrigeration device from another perspective;

[0031] Figure 3 for Figure 2 AA section diagram;

[0032] Figure 4 for Figure 3 Enlarged detail image of section B in the middle;

[0033] Figure 5 for Figure 3 Enlarged detail of section C;

[0034] Figure 6 for Figure 2 Assembly diagram of the bottom shell and back plate;

[0035] Figure 7 for Figure 2 Schematic diagram of the middle bottom shell;

[0036] Figure 8 for Figure 1 Schematic diagram of the middle cover plate;

[0037] Figure 9 for Figure 8 Enlarged detail image of section D in the middle;

[0038] Figure 10 for Figure 8 Enlarged detail image of section E in the middle;

[0039] Figure 11 for Figure 1 Enlarged detail of section F in the middle.

[0040] Explanation of icon numbers:

[0041]

[0042]

[0043] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] In related technologies, the cover plate of the refrigeration unit is installed using the following method: a slot with an upward-facing opening is provided on the bottom shell, and a buckle is provided at the lower end of the cover plate. During installation, the buckle is inserted into the slot, and then bolts are used to fix the upper end and sides of the cover plate to the bottom shell. This installation method requires a large number of bolts (at least five, specifically three at the top and two on the sides), resulting in low installation efficiency, high consumption of parts, and the need to align multiple bolt holes due to the large number of bolts, which increases the dimensional accuracy requirements of the bottom shell and the cover plate. Moreover, during installation, since the lower end of the cover plate's buckle needs to be inserted into the slot first, the fit between the slot and the buckle also requires high precision to avoid the buckle failing to insert, or the cover plate tilting backward due to gravity due to the large space reserved in the slot, thus affecting the accuracy of the bolt hole alignment or resulting in excessively large joints.

[0046] This application provides a refrigeration device 100, such as a refrigerator or freezer, to solve the technical problems of complex and inefficient installation of the existing refrigerator cover 3. The following description will be provided in conjunction with the accompanying drawings.

[0047] See also Figure 3 and Figure 4 The refrigeration device 100 includes a housing, a cover plate 3, a hanging part 31, and a mating part 21. The housing includes a back plate 2 and a bottom shell 1 connected to each other. The bottom shell 1 defines a mounting cavity 11 with an opening 12. The back plate 2 is located above the opening 12. The cover plate 3 seals the opening 12. The hanging part 31 is provided on one of the back plate 2 and the cover plate 3, and the mating part 21 is provided on the other of the back plate 2 and the cover plate 3. The hanging part 31 and the mating part 21 cooperate with each other so that the cover plate 3 is suspended from the back plate 2.

[0048] The housing can be the external structure of the refrigeration device 100, or it can be a partial shell structure component existing within the box that constitutes the external structure. For example... Figure 1 and Figure 3 As shown, the housing may include a bottom shell 1 and a back plate 2. The bottom shell 1 has a back side, and an installation cavity 11 is formed inside the bottom shell 1, which can be used to house the compressor. The installation cavity 11 extends through the back side of the bottom shell 1 and forms an opening 12 on the back side. The back plate 2 is connected to the back side of the bottom shell 1 and is located above the opening 12.

[0049] For ease of description, this article uses Figure 1 and Figure 2 The installation orientation of the refrigeration device 100 embodiment shown is used as an example for explanation. As shown in the figure, in this embodiment, the refrigeration device 100 has a front side facing the user and a rear side facing away from the user. The back plate 2 is located on the rear side of the refrigeration device 100, and the mounting cavity 11 is located at the bottom of the refrigeration device 100 with the opening 12 facing the rear.

[0050] The bottom shell 1 can be a one-piece structure or it can be composed of multiple plates. In some embodiments, the bottom shell 1 includes a first bottom plate 13, a second bottom plate 14, and a side support 15. The first bottom plate 13, the second bottom plate 14, and the side support 15 surround and form a mounting cavity 11. The rear end of the first bottom plate 13, the rear end of the side support 15, and the rear end of the second bottom plate 14 together form an opening 12.

[0051] The cover plate 3 can be plate-shaped or cover-shaped. It is positioned at the opening 12 and seals the opening 12, protecting the compressor inside the mounting cavity 11. The cover plate 3 can be made of metal, such as sheet metal, which is simple to manufacture and has advantages such as being lightweight, sturdy, and corrosion-resistant. For heat dissipation, in some embodiments, heat dissipation holes can be provided on the cover plate 3; for wiring, in other embodiments, wiring holes can be provided on the cover plate 3 for refrigeration pipes or wiring harnesses to pass through.

[0052] The hanging part 31 and the mating part 21 can be any combination structure that can form a hanging relationship. For example, it can be a hook and a ring, groove or hole that mates with the hook; it can also be two staggered protrusions, one of which supports the top of the other, thus achieving the effect of hanging the first protrusion through the second protrusion. The shape of the protrusion can be square, arc, ring, etc. The hanging part 31 can be set on the back plate 2 or on the cover plate 3. Correspondingly, when the hanging part 31 is set on the back plate 2, the mating part 21 can be set on the cover plate 3, and when the hanging part 31 is set on the cover plate 3, the mating part 21 can be set on the back plate 2.

[0053] In the refrigeration device 100 provided in this application, a hanging part 31 and a mating part 21 are respectively provided on the back plate 2 and the cover plate 3. When installing the cover plate 3, the cover plate 3 can be hung on the back plate 2 by the cooperation of the hanging part 31 and the mating part 21, thus realizing the installation of the cover plate 3. The installation is convenient and efficient. Moreover, the installation method of this application reduces the use of bolts 4. On the one hand, it can improve the installation efficiency, save parts, and reduce the requirements for the precision of parts. On the other hand, compared with the method that requires multiple screw holes 17 and bottom buckle and slot cooperation, the pre-positioning method of top suspension has relatively lower requirements for the cooperation precision of the hanging part 31 and the mating part 21.

[0054] Meanwhile, the cover plate 3 has a certain weight. Under the action of its own weight, the cover plate 3 hangs down naturally and can fit tightly against the opening 12 and the rear side of the bottom shell 1, thus improving the joint.

[0055] In addition, since most of the refrigeration pipes and wiring harnesses in the mounting cavity 11 are located in the upper part of the mounting cavity 11 or exit from the upper part of the bottom shell 1, this installation method avoids driving bolts 4 into the upper end of the cover plate 3. This can prevent the pipes in the mounting cavity 11 from being accidentally touched due to the driving of bolts 4, which could cause damage to the pipes and affect the operation of the refrigeration device 100.

[0056] In some embodiments, the hanging part 31 is located at the upper end of the cover plate 3, and the mating part 21 is located at the lower end of the back plate 2. This minimizes the overlap between the cover plate 3 and the back plate 2, saving materials and improving aesthetics.

[0057] Furthermore, the abutment portion 31 extends from the upper end of the cover plate 3 towards the back plate 2; as... Figure 4 , Figure 8 and Figure 9 As shown, the cover plate 3 is vertically arranged, and the hanging part 31 is arranged on the front side of the cover plate 3 and located at the upper end of the cover plate 3. Specifically, the hanging part 31 extends in the direction from back to front, forming a structure that protrudes from the cover plate 3. The lower end of the back plate 2 is provided with a through hole for the hanging part 31 to be inserted. The through hole constitutes the mating part 21. When the hanging part 31 is inserted into the through hole, the cover plate 3 can be suspended on the back plate 2.

[0058] It is understood that the shape of the through hole can be circular, strip-shaped, wavy, or any other shape that matches the hanging part 31; this application does not impose any restrictions. Figure 6 As shown, in some embodiments, the hanging part 31 is strip-shaped, and correspondingly, the through hole is a strip-shaped hole extending in the horizontal direction.

[0059] It is understood that in other embodiments, a protrusion may extend rearward from the lower end of the back plate 2, and a hanging hole matching the protrusion may be opened at the upper end of the cover plate 3. The protrusion constitutes the hanging part 31, and the hanging hole constitutes the mating part 21.

[0060] Furthermore, to prevent the cover plate 3 from falling off, the hook part 31 is gradually inclined downwards in the direction close to the back plate 2. For example... Figure 4 As shown, the hook part 31 gradually tilts downwards in the direction from back to front, so that it can be better hooked into the through hole. In actual installation, the cover plate 3 is raised so that the hook part 31 contacts the back plate 2 at a position higher than the through hole, and then it is gradually slid down along the back plate 2 to smoothly slide the hook part 31 into the through hole.

[0061] To achieve the connection between the bottom shell 1 and the back plate 2, the bottom shell 1 has an overlapping portion opposite to the lower end of the back plate 2. Specifically, the bottom shell 1 has a vertically folded area that at least partially overlaps with the lower end of the back plate 2, hence the name "overlapping portion." The projection of the overlapping portion onto the plane of the back plate 2 at least covers the through-hole. (See also...) Figure 4 and Figure 7 In some embodiments, a recess 16 is formed on the overlapping portion corresponding to the position of the through hole. Specifically, the recess 16 is configured to be recessed in a direction away from the through hole, i.e., forward. The recess 16 and the back plate 2 together define a clearance space. The through hole communicates with the clearance space. When the hook part 31 is inserted into the through hole, at least a portion of the hook part 31 is accommodated within the clearance space. The formation of the clearance space prevents the hook part 31 from interfering with other components within the housing and allows the cover plate 3 to fit more closely to the back plate 2, reducing the gap between the cover plate 3 and the back plate 2.

[0062] The distance between the surface of the recessed portion 16 and the back plate 2 is defined as the height H of the clearance space, wherein the surface of the recessed portion 16 refers to the concave surface facing the back plate 2. The height H can be set to a constant height, or it can be set to gradually decrease or increase. In some embodiments, the height of the lower end of the clearance space is higher than the height of the upper end of the clearance space; that is, at least a portion of the surface of the recessed portion 16 gradually slopes forward from top to bottom, so that there is a wider clearance space between the back plate 2 and the bottom shell 1 at the lower position, which is more conducive to the insertion of the hanging part 31.

[0063] In some embodiments, the back plate 2 has a lower region adjacent to the lower end of the through hole, and the projection of the recess 16 on the back plate 2 at least covers the through hole and the lower region. In this way, the through hole is located in the upper part of the clearance space, and after the abutment 31 is inserted into the through hole, the clearance space can reserve more lower space for the inserted abutment 31.

[0064] In some embodiments, the back plate 2 further has an adjacent region adjacent to the upper end of the through hole, such as... Figure 4 and Figure 7 As shown, the adjacent area gradually slopes downwards from the top towards the direction away from the cover plate 3 to form a guide slope 23. Specifically, the adjacent area is recessed to form a guide groove communicating with the through hole. The bottom of the guide groove forms the guide slope 23. The guide slope 23 gradually slopes away from the cover plate 3 in the direction close to the through hole. When installing the cover plate 3, the upper end of the cover plate 3 can slide downwards along the back plate 2. When the hanging part 31 slides to the guide slope 23, the guide groove can constrain the downward direction of the cover plate 3. At the same time, the guide slope 23 can guide the hanging part 31 to slide towards the through hole.

[0065] In some embodiments, the upper end of the cover plate 3 arches away from the back plate 2 to form an arched portion 32. The arched portion 32 can strengthen the cover body, increase the strength of the cover plate 3 in the horizontal direction, ensure the flatness of the cover plate 3, and help reduce the gap between the cover plate 3 and the back plate 2.

[0066] The hanging part 31 and the mating part 21 can be provided in one set or multiple sets. In some embodiments, there are multiple hanging parts 31, which are spaced apart along the length of the cover plate 3; correspondingly, there are multiple mating parts 21, which correspond one-to-one with the multiple hanging parts 31. It should be noted that "multiple" in this document refers to two, three, four, five or more; in the cover plate 3, the vertical direction is the width direction of the cover plate 3, and correspondingly, the length direction of the cover plate 3 refers to the direction perpendicular to the vertical direction. By providing multiple hanging parts 31 spaced apart along the length of the cover plate 3, it can be ensured that all parts of the upper end of the cover plate 3 can be attached to the back plate 2, which helps to improve the installation firmness of the cover plate 3 and reduce the gap between the cover plate 3 and the back plate 2.

[0067] Furthermore, in some embodiments, the plurality of the hanging parts 31 are arranged at equal intervals along the length direction of the cover plate 3, so that the connection points between the cover plate 3 and the back plate 2 can be more evenly distributed.

[0068] Furthermore, in some embodiments, the lower end of the cover plate 3 is provided with an elastic buckle 34, and the lower end of the bottom shell 1 is formed with a fastening part, the elastic buckle 34 engaging with the fastening part. The lower end of the cover plate 3 and the lower end of the bottom shell 1 are elastically fastened, further enhancing the installation firmness of the cover plate 3; the elastic fastening method makes disassembly and installation convenient, and its structure can be integrally molded during the preparation of the cover plate 3, simplifying manufacturing and eliminating the need for additional parts. The specific structure of the elastic buckle 34 and the fastening part can have various implementation forms. For example, the fastening part is a locking inlet whose diameter can elastically expand under external force and elastically contract when the external force disappears, and the elastic buckle 34 is a spherical or hook-shaped locking hook; for another example, please refer to Figure 5 and Figure 10 The lower end of the bottom shell 1 forms an upwardly folded flange 18. The elastic buckle 34 includes a connecting portion 341 extending from the cover plate 3 toward the bottom shell 1, a stop portion 342 extending from the end of the connecting portion 341 away from the cover plate 3, and an extension portion 343 extending downward from the end of the stop portion 342 away from the connecting portion 341. A slot for inserting the flange 18 is formed between the stop portion 342 and the extension portion 343. In this way, elastic engagement can be achieved by means of the flange 18 on the bottom shell 1 without the need to process additional structures.

[0069] The side brackets 15 extend vertically and are vertically positioned between the first base plate 13 and the second base plate 14. The bottom shell 1 includes two side brackets 15, which are respectively disposed on both sides of the opening 12 to form part of the edge of the opening 12; the two sides of the cover plate 3 are respectively fixedly connected to the two side brackets 15. There are various options for the connection method between the cover plate 3 and the side brackets 15, such as by bolts 4, by snap-fit, or by magnetic connection. In some embodiments, the two sides of the cover plate 3 are respectively connected to the two side brackets 15 by bolts 4. The bolt 4 connection method provides better stability and can prevent users from accidentally disassembling the cover plate 3.

[0070] Furthermore, in some embodiments, such as Figure 2 As shown, the side bracket 15 is connected to the cover plate 3 by a bolt 4. The side bracket 15 has a screw hole 17, and the cover plate 3 has a mounting hole 33 on the side corresponding to the side bracket 15. The bolt 4 passes through the mounting hole 33 and is installed in the screw hole 17. The cover plate 3 proposed in this application only requires the upper end to be fixed by the hanging part 31 and the mating part 21, and the sides to be fixed by two bolts 4 on both sides. This achieves the installation of the cover plate 3, resulting in good installation stability, fewer parts required, and a simple installation process.

[0071] In addition, the housing may also include two oppositely arranged side plates 5, see [link to relevant documentation]. Figure 1 and Figure 11The back plate 2 and the bottom shell 1 are located between the two side plates 5. Each side plate 5 has a connecting end near the back plate 2, and this connecting end forms a mounting groove 51 opening towards the cover plate 3. The mounting groove 51 extends vertically and penetrates the upper surface of the side plate 5. The side end of the back plate 2 is inserted into the mounting groove 51. In one specific embodiment, the two side plates 5 are located on the left and right sides of the back plate 2, respectively. The rear end of each side plate 5 forms a connecting end, and the rear end of each side plate 5 forms a mounting groove 51 with its opening facing backwards. The two sides of the back plate 2 are bent forward to form flanges 22, which are inserted into the mounting groove 51 and abut against and fixed to the groove wall of the mounting groove 51. Please refer to further details. Figure 8 The cover plate 3 extends from both sides toward the back plate 2 to form insertion portions 35. These insertion portions 35 are inserted into the mounting groove 51 for engagement. When installing the cover plate 3, it can be raised towards the back plate 2, the insertion portions 35 are inserted into the mounting groove 51, and then slid downwards along the mounting groove 51 until the abutment portion 31 engages with the mating portion 21. The mounting groove 51 serves as a guide for sliding, aiding in pre-positioning and improving installation efficiency and accuracy.

[0072] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0073] The technical solutions provided by the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A refrigeration device, characterized in that, include: The housing includes a back plate and a bottom shell connected to each other, the bottom shell defining a mounting cavity with an opening, and the back plate being located above the opening; Cover plate, sealing the opening; A mounting part is provided in one of the back plate and the cover plate; as well as, A mating part is provided on the other of the back plate and the cover plate; the hanging part cooperates with the mating part, and the cover plate is suspended from the back plate.

2. The refrigeration device according to claim 1, characterized in that, The hanging part is located at the upper end of the cover plate, and the mating part is located at the lower end of the back plate.

3. The refrigeration device according to claim 2, characterized in that, The abutment extends from the upper end of the cover plate toward the back plate; The mating part is a through hole located at the lower end of the back plate, and the hanging part is inserted into the through hole for mating.

4. The refrigeration device according to claim 3, characterized in that, The mounting portion is gradually inclined downwards in the direction close to the back panel; and / or, The upper end of the cover plate arches away from the back plate to form an arched portion; and / or, The back plate has an adjacent area adjacent to the upper end of the through hole, and the adjacent area gradually slopes from top to bottom away from the cover plate to form a guide slope.

5. The refrigeration device according to claim 3, characterized in that, The bottom shell has an overlapping portion opposite to the lower end of the back plate. The overlapping portion is recessed in a direction away from the through hole to form a recessed portion, and the recessed portion and the back plate together define a clearance space for accommodating the hanging part.

6. The refrigeration device according to claim 5, characterized in that, The distance between the surface of the recess and the back plate is the height of the clearance space, and the lower end of the clearance space is higher than the upper end of the clearance space; and / or, The back plate has a lower region adjacent to the lower end of the through hole, and the projection of the recess on the back plate at least covers the through hole and the lower region.

7. The refrigeration device according to claim 2, characterized in that, The mounting parts are provided in multiple ways, and the multiple mounting parts are spaced apart along the length direction of the cover plate; The mating parts are provided in multiple ways, and each of the multiple mating parts corresponds to one of the multiple hooking parts.

8. The refrigeration device according to claim 1, characterized in that, The bottom shell includes two side supports extending in the vertical direction, and the two side supports are respectively disposed on both sides of the opening to form part of the opening edge; The cover plate is connected to the two side brackets on both sides by bolts.

9. The refrigeration device according to claim 1, characterized in that, The lower end of the cover plate is provided with an elastic buckle, and the lower end of the bottom shell is formed with a fastening part, wherein the elastic buckle engages with the fastening part.

10. The refrigeration device according to claim 1, characterized in that, The housing also includes two side plates disposed opposite to each other, the back plate and the bottom shell are located between the two side plates, wherein the side plate has a connecting end near the back plate, the connecting end is formed with a mounting groove extending vertically and toward the opening of the cover plate, and the side end of the back plate is inserted into the mounting groove; The two sides of the cover plate extend toward the back plate to form insertion parts, which are inserted into the mounting groove for mating.

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