Storage equipment

Abstract

The invention discloses storage equipment, and belongs to the field of household appliances. The storage equipment comprises a box body, a refrigeration unit, a cabinet opening, a door body and a plurality of air doors. A storage chamber with an open end is defined by the box body; the refrigeration unit is arranged in the storage chamber and divides the storage chamber into a plurality of cavities; the cabinet opening is formed in the open end of the box body and provided with an air duct cavity, the air duct cavity is provided with an air inlet and a plurality of air outlet sets, the air inlet and the air outlet sets form a plurality of ventilation paths, the air inlet is communicated with the refrigeration unit, and the ventilation paths are connected with the cavities in a one-to-one correspondence mode; the plurality of air doors are rotatably arranged on the plurality of ventilation paths; the door body is installed at the cabinet opening in a pivoted mode and used for sealing the storage chamber. Independent temperature control of the multiple cavities can be achieved, and occupation of the effective volume of the box body can be further reduced by arranging the cabinet opening and omitting an independent air duct structure in a matched mode.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household appliances, and particularly relates to a storage equipment. BACKGROUND

[0002] The storage equipment such as a refrigerator and a freezer is a commonly used electrical appliance in people's daily life, and the freezer is divided into a horizontal freezer and a vertical freezer. The horizontal freezer is widely used due to its large storage capacity. The conventional horizontal freezer usually adopts a direct cooling mode for refrigeration, but frost is prone to be formed in the box during use. The horizontal air-cooled freezer is favored by users due to its frost-free advantage.

[0003] However, the current air-cooled freezer is mostly a single-temperature-zone product, which is inconvenient to use and has a high production cost, and needs to be improved. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a storage equipment which can realize independent temperature control of multiple cavities and further reduce the occupation of the effective volume of the box by canceling the separate air duct structure in cooperation with the cabinet opening.

[0005] In a first aspect, the present application provides a storage equipment, comprising: a box body, a refrigeration unit, a cabinet opening, a door body and multiple air doors.

[0006] The box body defines a storage chamber with an open end.

[0007] The refrigeration unit is arranged in the storage chamber and divides the storage chamber into multiple cavities.

[0008] The cabinet opening is installed at the open end of the box body and is provided with an air duct cavity. The air duct cavity has an air inlet and multiple air outlet groups. The air inlet and the multiple air outlet groups form multiple ventilation paths. The air inlet is in communication with the refrigeration unit, and the multiple ventilation paths are connected with the multiple cavities one by one.

[0009] The multiple air doors are rotatably arranged in the multiple ventilation paths.

[0010] The door body is pivotally installed on the cabinet opening and is used to close the storage chamber.

[0011] According to the storage device, the air duct cavity is arranged in the cabinet opening, the air duct cavity can be communicated with the refrigeration unit and the plurality of cavities, the integration of the air duct structure and the cabinet opening is realized, the conventional air duct cover plate and the air duct cavity embedded part are cancelled, the production rhythm is reduced, and the production efficiency is improved; and the air duct cavity can be communicated with the plurality of cavities and the refrigeration unit respectively, the rotation of the air door in the ventilation path is controlled, the communication relationship between the air outlet group and the corresponding cavity is controlled, the cold air amount entering each cavity is controlled, and thus the individual temperature control of each cavity is realized. In other words, one set of circulation system can be used to realize the individual temperature control of the plurality of cavities, without increasing the evaporator and the capillary tube and other refrigeration devices, so that the individual temperature control of the plurality of cavities is realized and the separate air duct structure arranged in the cabinet opening is cancelled to further reduce the occupation of the effective volume of the cabinet.

[0012] According to one embodiment of the present application, the cabinet comprises: an outer shell, an inner container, and a heat preservation layer between the outer shell and the inner container, and part of the wall surface of the inner container is used to form part of the wall surface of the air duct cavity.

[0013] According to one embodiment of the present application, the open end of the inner container comprises at least two bending sections connected in sequence and relatively bent;

[0014] The cabinet opening comprises a first wall, a top wall and a second wall connected in sequence, the first wall is located inside the second wall and is spaced apart from the second wall, and the first wall and the second wall are connected with different sections of the at least two bending sections to form the air duct cavity between the cabinet opening and the inner container.

[0015] According to one embodiment of the present application, the at least two bending sections comprise a first section, a second section, a third section and a fourth section, the first section is bent outwardly relative to the side wall of the inner container, the second section is bent upwardly relative to the first section, the third section is bent outwardly relative to the second section, and the fourth section is bent upwardly relative to the third section;

[0016] The second section is connected with the outer side of the first wall, the third section forms part of the wall surface of the air duct cavity, and the fourth section is connected with the second wall.

[0017] According to one embodiment of the present application, the at least two bending sections comprise a fifth section and a sixth section, the fifth section is bent outwardly relative to the side wall of the inner container, and the sixth section is bent upwardly relative to the fifth section;

[0018] The fifth section forms part of the wall surface of the air duct cavity, the fifth section is connected with the first wall, and the sixth section is connected with the second wall.

[0019] According to an embodiment of the present application, the first wall is arranged in the storage compartment and is provided with a plurality of groups of air outlets, and the plurality of groups of air outlets are respectively communicated with the plurality of cavities, and the second wall is arranged outside the storage compartment and is provided with a reinforcing rib.

[0020] According to an embodiment of the present application, the plurality of cavities comprises a first chamber and a second chamber, and the first chamber and the second chamber are located on two sides of the refrigeration unit.

[0021] The air duct cavity comprises a first part and a second part, the first part is provided with a first group of air outlets communicated with the first chamber, and the second part is provided with a second group of air outlets communicated with the second chamber.

[0022] The air door comprises a first door and a second door, the air inlet is located between the first door and the second door, the first door is configured to control the communication and disconnection of the air inlet and the first group of air outlets, and the second door is configured to control the communication and disconnection of the air inlet and the second group of air outlets.

[0023] According to an embodiment of the present application, the box comprises an outer shell, an inner container and a heat preservation layer located between the outer shell and the inner container, and the box is configured to form the heat preservation layer between the outer shell and the inner container after the refrigeration unit is installed in the inner container.

[0024] According to an embodiment of the present application, the side wall of the box is provided with a plurality of first mounting structures arranged at intervals along the distribution direction of the plurality of cavities, the refrigeration unit is provided with a second mounting structure for connecting with the first mounting structure, and the second mounting structure is selectively connected with at least one of the plurality of first mounting structures.

[0025] According to an embodiment of the present application, one of the first mounting structure and the second mounting structure comprises a sliding groove, the other of the first mounting structure and the second mounting structure comprises a sliding rail slidingly matched with the sliding groove, and the sliding groove extends to the end of the device.

[0026] According to an embodiment of the present application, the refrigeration unit comprises a box body, a support assembly and a refrigeration assembly installed in the box body.

[0027] The second mounting structure comprises a sliding groove arranged on the support assembly and a avoiding opening arranged on the box body, the avoiding opening is used for avoiding the sliding groove, the sliding groove extends to the end of the support assembly, and the avoiding opening extends to the end of the box body.

[0028] The first mounting structure comprises the sliding rail.

[0029] According to one embodiment of the present application, the first mounting structure includes a mounting opening and a connector, the connector passes through the mounting opening and protrudes from the inner wall of the box to form the slide rail, the slide rail passes through the avoidance opening and extends into the slide groove; or,

[0030] The slide rail is formed as one piece with the inner wall of the box body and protrudes from the inner wall of the box body.

[0031] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0033] Figure 1 This is one of the structural diagrams of the storage device provided in the embodiment of the present application;

[0034] Figure 2 This is the second structural diagram of the storage device provided in the embodiment of the present application;

[0035] Figure 3 This is one of the structural diagrams of the refrigeration unit provided in the embodiment of the present application;

[0036] Figure 4 This is the second structural diagram of the refrigeration unit provided in the embodiment of the present application;

[0037] Figure 5 This is the third structural diagram of the refrigeration unit provided in the embodiment of the present application;

[0038] Figure 6 This is the fourth structural diagram of the refrigeration unit provided in the embodiment of the present application;

[0039] Figure 7 This is the fifth structural diagram of the refrigeration unit provided in the embodiment of the present application;

[0040] Figure 8 This is the sixth structural diagram of the refrigeration unit provided in the embodiment of the present application;

[0041] Figure 9 This is the seventh structural diagram of the refrigeration unit provided in the embodiment of the present application;

[0042] Figure 10 This is the eighth structural diagram of the refrigeration unit provided in the embodiment of the present application;

[0043] Figure 11 This is the third structural diagram of the storage device provided in the embodiment of the present application;

[0044] Figure 12 Fig. 4 is a structural schematic diagram of a storage device provided by an embodiment of the present application;

[0045] Figure 13 Fig. 5 is a structural schematic diagram of a storage device provided by an embodiment of the present application;

[0046] Figure 14 Fig. 6 is a structural schematic diagram of an inner container provided by an embodiment of the present application;

[0047] Figure 15 Fig. 7 is a structural schematic diagram of an angle sealing member provided by an embodiment of the present application;

[0048] Figure 16 Fig. 8 is a structural schematic diagram of a storage device provided by an embodiment of the present application;

[0049] Figure 17 Fig. 9 is a structural schematic diagram of a storage device provided by an embodiment of the present application;

[0050] Figure 18 Fig. 10 is a structural schematic diagram of a cabinet opening provided by an embodiment of the present application;

[0051] Figure 19 Fig. 11 is a structural schematic diagram of a storage device provided by an embodiment of the present application;

[0052] Figure 20 Fig. 12 is a structural schematic diagram of a storage device provided by an embodiment of the present application;

[0053] Figure 21 Fig. 13 is a structural schematic diagram of an inner container provided by an embodiment of the present application;

[0054] Figure 22 Fig. 14 is a structural schematic diagram of a storage device provided by an embodiment of the present application;

[0055] Figure 23 Fig. 15 is a structural schematic diagram of a storage device provided by an embodiment of the present application;

[0056] Figure 24 Fig. 16 is a structural schematic diagram of a cabinet opening provided by an embodiment of the present application;

[0057] Figure 25 Fig. 17 is a structural schematic diagram of a storage device provided by an embodiment of the present application;

[0058] Figure 26 Fig. 18 is a structural schematic diagram of a storage device provided by an embodiment of the present application.

[0059] Reference signs:

[0060] Box 1, shell 11, inner container 12, through hole 121, first section 1221, second section 1222, third section 1223, fourth section 1224, fifth section 1225, sixth section 1226, notch 1227, first connecting structure 1231, second connecting structure 1232, third connecting structure 1233, fourth connecting structure 1235, fifth connecting structure 1236;

[0061] Corner seal 129, first face 1291, second face 1292, third face 1293, first through hole 1294, second through hole 1295;

[0062] First mounting structure 13, mounting port 131, plug 132; storage compartment 14, first compartment 141, second compartment 142, thermal insulation layer 15;

[0063] Refrigeration unit 2, box body 21, air supply port 211, air return port 212, heat insulation member 221, support body 222, connecting member 2221, support member 2222, air guide shell 223, volute tongue 2231, refrigeration assembly 23, evaporator 231, evaporator fan 232, return air pipe group 233, second mounting structure 24, sliding groove 241, avoiding port 242;

[0064] Cabinet opening 3, first wall 31, connecting portion 311, second wall 33, reinforcing rib 331, air duct cavity 34, air inlet 341, air outlet 342, first portion 343, second portion 344;

[0065] Door body 4;

[0066] Air door 5, first door 51, second door 52. DETAILED DESCRIPTION

[0067] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0068] Unless otherwise specified, the third direction in the present application is the front-rear direction of the storage device, i.e. the X direction; the second direction is the left-right direction of the storage device, i.e. the Y direction; and the first direction is the up-down direction of the storage device, i.e. the Z direction.

[0069] Reference is made below to Figures 1-26 A storage device according to embodiments of the present application is described.

[0070] It should be noted that the storage device in the embodiment can be understood as a general refrigeration storage device, including but not limited to a refrigerator, a freezer, a display cabinet, a beverage cabinet, a wine cabinet, a cold fresh cabinet, and a refrigeration vending machine, and the like. The storage device has various structural forms and wide application range.

[0071] The storage device includes a cabinet and a door body. The cabinet includes an outer shell, an inner container, and a thermal insulation layer between the outer shell and the inner container. The outer shell covers the outer container to provide protection. The thermal insulation layer can be a foaming layer to provide thermal insulation and buffering.

[0072] The open end of the cabinet is provided with the door body, which can be connected to the wall of the cabinet by a pivot structure. The cabinet defines a storage compartment, which can include a refrigeration compartment, a freezing compartment, or a variable temperature compartment.

[0073] As shown in Figure 1 , Figure 23 and Figure 24 , the storage device of the embodiment includes a cabinet 1, a refrigeration unit 2, a cabinet opening 3, a door body 4, and a plurality of air doors 5.

[0074] The cabinet 1 defines a storage compartment 14 with an open end. The refrigeration unit 2 is arranged in the storage compartment 14 and divides the storage compartment 14 into a plurality of cavities. The cabinet opening 3 is installed at the open end of the cabinet 1, and the cabinet opening 3 is provided with an air duct cavity 34 having an air inlet 341 and a plurality of air outlet groups. The air inlet 341 and the plurality of air outlet groups form a plurality of ventilation paths. The air inlet 341 is in communication with the refrigeration unit 2, and the plurality of ventilation paths are connected to the plurality of cavities one by one. The plurality of air doors 5 are rotatably arranged in the plurality of ventilation paths. The door body 4 is pivotally installed on the cabinet opening 2 to close the storage compartment 14.

[0075] The door body 4 can be connected to the open end of the cabinet 1 by a pivot structure. The door body 4 can be opened or closed relative to the cabinet 1 to close or open the storage compartment 14.

[0076] The storage compartment 14 can be divided into two or more cavities by the refrigeration unit 2. The plurality of cavities are isolated so that different cavities have different temperature controls to meet the storage requirements of different temperature requirements.

[0077] The refrigeration unit 2 can include a plurality of refrigeration sub-units, which can divide the storage compartment 14 into three or more cavities. The plurality of refrigeration sub-units can share a set of refrigeration components 23. Alternatively, the refrigeration unit 2 is an integral whole, and the refrigeration unit 2 can divide the storage compartment 14 into a first compartment 141 and a second compartment 142.

[0078] The refrigeration unit 2 can be put into the storage compartment 14 from the open end of the cabinet 1 and connected with the cabinet 1, and the refrigeration unit 2 can be connected with the cabinet 1 through at least one of plug-in connection, clamping and the like.

[0079] The plurality of cavities are independent of each other, and the plurality of cavities can all be refrigeration compartments, or all be freezing compartments, or a part of the plurality of cavities are refrigeration compartments and the other part are freezing compartments.

[0080] The cabinet opening 3 is used to connect the cabinet 1 and the door body 4, and is arranged at the open end of the cabinet 1 in the circumferential direction of the cabinet 1. The air duct cavity 34 is located in the cabinet opening 3, which can realize the integration of the air duct structure and the cabinet opening 3, cancel the conventional air duct cover plate and air duct cavity embedded parts, reduce the assembly rhythm of the conventional air duct cover plate and air duct cavity embedded parts, reduce the installation steps, and the structure design is simple, the process is simple and the overall cost is reduced.

[0081] The cabinet opening 3 can be integrally injection molded or formed by sheet metal stamping and bending. The cabinet opening 3 can be connected with the cabinet 1 by one or more of plug-in connection, buckle connection and screw connection.

[0082] The cabinet opening 3 is connected with the open end of the cabinet 1 and extends in the circumferential direction of the cabinet 1. The air duct cavity 34 extends along the extension direction of the cabinet opening 3. A plurality of air outlet groups are provided. In the case of providing a plurality of air outlet groups, the plurality of air outlet groups are connected one by one with the plurality of cavities, which can be connected one by one. The communication between each cavity and the refrigeration unit 2 is realized by controlling the air door 5, so as to realize the separate control of the temperature of each cavity.

[0083] The air outlet group can include a plurality of air outlets. The plurality of air outlets 342 can be arranged at intervals along the extension direction of the air duct cavity 34, i.e. the plurality of air outlets 342 are arranged in the circumferential direction of the storage compartment 14. The plurality of air outlets 342 can realize the outflow of cold air, and the four-side air-outflow refrigeration efficiency is high, which improves the uniformity of the temperature in the storage equipment.

[0084] The air inlet 341 and the plurality of air outlet groups form a plurality of ventilation paths in parallel. The plurality of ventilation paths are connected one by one with the plurality of cavities. The fluid valve is arranged in the ventilation path, which can be an air door. The air door is arranged in each ventilation path. The air door is used to control the communication or disconnection of the ventilation path, or control the cross-sectional area of the ventilation path to control the fluid flow.

[0085] In this embodiment, each cavity is communicated with the refrigeration unit 2 through one of the plurality of air outlet groups. The amount of cold air entering the cavity can be controlled by controlling the communication and disconnection of the air outlet group and the corresponding cavity, so as to realize the separate control of the temperature of the cavity.

[0086] The cabinet opening is arranged around the cabinet 1, and the cabinet opening and the cabinet 1 jointly define a storage compartment 14, thereby increasing the volume of the storage compartment 14.

[0087] The plurality of dampers 5 are rotatably arranged in the plurality of ventilation paths, and the plurality of dampers 5 are configured to be individually controlled.

[0088] The damper 5 can include a door leaf and a driving member, and the driving member can rotate the door leaf in the ventilation path. In a case where the normal line of the door leaf intersects the flow direction of the cold air in the ventilation path, the ventilation path is unobstructed and the cold air can flow through the ventilation path. In a case where the normal line of the door leaf is perpendicular to the flow direction of the cold air in the ventilation path, the flow of the cold air in the ventilation path is the largest. In a case where the normal line of the door leaf is parallel to the flow direction of the cold air in the ventilation path, the ventilation path is blocked and the cold air cannot flow into the cavity connected to the ventilation path through the ventilation path.

[0089] In the embodiment, the damper 5 is arranged in each ventilation path, and the state of the damper 5 can be controlled to control the connection, disconnection or flow area of each ventilation path, so that the amount of cold air entering each cavity can be individually controlled, and the temperature of the plurality of cavities can be individually controlled, and the structure is simple and easy to implement.

[0090] In the related art, most of the horizontal air-cooled refrigerators are single-temperature-zone products. In order to reduce the occupation of the storage compartment, the refrigeration unit is usually installed on one side of the cabinet, and the air supply port of the refrigeration unit is directly communicated with the storage compartment or communicated with the storage compartment through a duct structure. The user can control the temperature of the storage compartment by controlling the refrigeration capacity of the refrigeration unit. The refrigerator provided with multiple temperature zones usually has multiple sets of evaporators and capillary tubes to form multiple refrigerant circulation systems, thereby realizing temperature adjustment of multiple temperature zones.

[0091] In the above-mentioned refrigerator, in a case where the volume of the cabinet is constant, the circulation system increased for realizing multiple temperature zone control will inevitably occupy the effective volume of the cabinet, and the duct structure usually includes a duct cover plate and a duct piece embedded cavity. Setting a separate duct structure increases the number of parts of the storage device and prolongs the production rhythm.

[0092] According to the storage device provided by the embodiment of the present application, a duct cavity 34 is provided in the cabinet opening 3. The duct cavity 34 can connect the refrigeration unit 2 and multiple cavities, realizing the integration of the duct structure and the cabinet opening 3, eliminating the conventional duct cover and duct cavity embedded parts, reducing the production cycle, and improving production efficiency; and the duct cavity 34 can connect multiple cavities with the refrigeration unit 2 respectively. By controlling the rotation of the damper 5 in the ventilation path, the connection relationship between the air outlet group and the corresponding cavity can be controlled, and the amount of cold air entering each cavity can be controlled, thereby realizing the individual temperature control of each cavity. In other words, a set of circulation systems can be used to realize the individual temperature control of multiple cavities without adding refrigeration devices such as evaporators and capillaries. It can not only realize the individual temperature control of multiple cavities, but also cooperate with the cabinet opening 3 to eliminate the individual duct structure to further reduce the encroachment on the effective volume of the box body 1.

[0093] In some embodiments, as Figure 1 As shown, the box body 1 includes: an outer shell 11, an inner liner 12 and an insulation layer 15 located between the outer shell 11 and the inner liner 12. Part of the wall surface of the inner liner 12 is used to form part of the wall surface of the air duct cavity 34.

[0094] The cabinet opening 3 has an open end, which is connected to the end of the inner liner 12. Part of the wall surface of the end of the inner liner 12 is used to form part of the wall surface of the air duct cavity 34. Compared with producing a closed air duct cavity 34 on the cabinet opening 3, producing an air duct cavity 34 with part of the wall surface open can increase the cross-sectional area of ​​the air duct cavity 34, increase the flow rate, and facilitate the processing and production of the cabinet opening 3.

[0095] The air duct cavity 34 is defined by the inner liner 12 and the cabinet opening 3 . The cabinet opening 3 with an open end simplifies production difficulty and reduces costs compared to the cabinet opening 3 with a closed air duct cavity 34 .

[0096] In some embodiments, as Figure 2 、 Figure 11 and Figure 14 As shown, the box body 1 includes an outer shell 11, an inner liner 12 and an insulation layer 15 located between the outer shell 11 and the inner liner 12, and the inner liner 12 is provided with a through hole 121; the refrigeration unit 2 includes a return air pipe group 233, one end of the return air pipe group 233 is used to pass through the through hole 121 and the insulation layer 15 to communicate with the compressor.

[0097] The return air pipe group 233 is used to communicate the evaporator 231 and the compressor. One end of the return air pipe group 233 extends out of the through hole 121 and communicates with the compressor through the gap between the outer shell 11 and the inner container 12. After the refrigeration unit 2 is assembled with the cabinet 1, the gap between the outer shell 11 and the inner container 12 is filled with thermal insulation material to form a thermal insulation layer 15. Part of the return air pipe group 233 between the outer shell 11 and the inner container 12 is embedded in the thermal insulation layer 15. The thermal insulation layer 15 can protect and fix the part of the return air pipe group 233 located therein.

[0098] In some embodiments, as shown in Figure 16 and Figure 20 The open end of the inner container 12 includes at least two bending sections connected in sequence and bent relative to each other. The cabinet opening 3 includes a first wall 31, a top wall and a second wall 33 connected in sequence. The first wall 31 is located inside the second wall 33 and is spaced apart from the second wall 33. The first wall 31 and the second wall 33 are connected to different sections of the at least two bending sections to form an air duct cavity 34 between the cabinet opening 3 and the inner container 12.

[0099] The end surface of the open end of the inner container 12 forms at least two bending sections. The at least two bending sections can be continuously bent towards the inside of the storage compartment 14 or continuously bent away from the storage compartment 14. The first wall 31, the top wall, the second wall 33 and part of the at least two bending sections jointly define the air duct cavity 34. That is, the inner container 12 and the cabinet opening 3 jointly define the air duct cavity 34.

[0100] In this embodiment, the at least two bending sections connected in sequence and bent relative to each other are integrally formed. By connecting the first wall 31 and the second wall 33 to different sections of the at least two bending sections, multi-point connection is achieved, which can increase the stability of the connection between the two, and at the same time, the cabinet opening 3 and the inner container 12 can be connected in a

[0101] The inner container 12 can be made of at least two materials as follows:

[0102] Firstly, the inner container 12 can be a plastic piece. The material of the plastic piece can be a PS or ABS plate. The inner container 12 can be integrally formed by adsorption.

[0103] In this embodiment, as shown in Figure 20 The at least two bending sections include a first section 1221, a second section 1222, a third section 1223 and a fourth section 1224 connected in sequence. The first section 1221 is bent outward relative to the side wall of the inner container 12. The second section 1222 is bent upward relative to the first section 1221. The third section 1223 is bent outward relative to the second section 1222. The fourth section 1224 is bent upward relative to the third section 1223. The second section 1222 is connected to the outer side of the first wall 31. The third section 1223 forms part of the wall surface of the air duct cavity 34. The fourth section 1224 is connected to the second wall 33.

[0104] In the embodiment, the first section 1221 and the second section 1222 form a recess relative to the side wall of the inner container 12, the top wall and the side wall facing the storage compartment 14 of the recess are open, and at least part of the first wall 31 is located in the recess. The side of the first wall 31 facing the storage compartment 14 is flush with the inner side of the inner container 12, recessed relative to the inner side of the inner container 12, or slightly convex relative to the inner side of the inner container 12, which can reduce the occupation of the first wall 31 to the volume of the storage compartment 14. The first wall 31 is connected to the second section 1222, and the connection mode can be clamping or plug-in connection.

[0105] The bottom wall of the first wall 31 can abut or be connected to the first section 1221, and the first section 1221 supports the first wall 31 to increase the stability of the connection between the cabinet opening 3 and the cabinet 1.

[0106] The fourth section 1224 is connected to the inner wall or the outer wall of the second wall 33, and the connection mode can be clamping or plug-in connection to increase the stability of the connection between the cabinet opening 3 and the cabinet 1.

[0107] In the case where the fourth section 1224 is connected to the inner wall of the second wall 33, the third section 1223 forms the bottom wall of the air duct cavity 34 as a whole, which can reduce the occupation of the second wall 33 to the air duct cavity 34 and improve the ventilation efficiency of the air duct cavity 34.

[0108] In the case where the fourth section 1224 is connected to the outer wall of the second wall 33, part of the third section 1223 forms the bottom wall of the air duct cavity 34, which increases the stability of the connection between the cabinet opening 3 and the cabinet 1.

[0109] In some embodiments, as shown in Figure 20 and Figure 21 The second section 1222 is provided with a first connecting structure 1231, the first wall 31 is provided with a second connecting structure 1232, and the first connecting structure 1231 and the second connecting structure 1232 are clamped; or the fourth section 1224 is provided with a third connecting structure 1233, the second wall 33 is provided with a fourth connecting structure 1235, and the third connecting structure 1233 and the fourth connecting structure 1235 are clamped.

[0110] In some embodiments, the second section 1222 is provided with a first connecting structure 1231, the first wall 31 is provided with a second connecting structure 1232, and the first connecting structure 1231 and the second connecting structure 1232 are clamped; and the fourth section 1224 is provided with a third connecting structure 1233, the second wall 33 is provided with a fourth connecting structure 1235, and the third connecting structure 1233 and the fourth connecting structure 1235 are clamped.

[0111] In the embodiment, the first wall 31 and the second wall 33 are respectively clamped with the inner container 12, so that the stability of the connection between the cabinet opening 3 and the inner container 12 is improved, and quick connection is realized.

[0112] The connection structure between the first connecting structure 1231 and the second connecting structure 1232 can be the same as or different from the connection structure between the third connecting structure 1233 and the fourth connecting structure 1235.

[0113] In some embodiments, one of the first connecting structure 1231 and the second connecting structure 1232 is a groove structure or a hole structure, and the other is a sliding block. The open end of the groove structure faces the storage compartment 14, and the sliding block has a clamping surface and a guide surface connected thereto, and the guide surface is arranged at an acute angle with the clamping surface.

[0114] For example, as shown in Figure 21 , the first connecting structure 1231 is a groove structure or a hole structure, the second connecting structure 1232 is a sliding block, the sliding block has a clamping surface and a guide surface connected thereto, the guide surface is arranged at an acute angle with the first wall 31 to smoothly slide the second connecting structure 1232 into the groove structure or the hole structure, and the clamping surface is arranged at a right angle or an obtuse angle with the first wall 31. The clamping surface is clamped with the groove structure or the hole structure to reduce the risk of the second connecting structure 1232 falling out of the first connecting structure 1231.

[0115] For example, the second connecting structure 1232 is a groove structure or a hole structure, and the first connecting structure 1231 is a sliding block. The sliding block has a clamping surface and a guide surface connected thereto, the guide surface is arranged at an obtuse angle with the second segment 1222 to smoothly slide the first connecting structure 1231 into the groove structure or the hole structure, and the clamping surface is arranged at a right angle or an acute angle with the second segment 1222. The clamping surface is clamped with the groove structure or the hole structure to reduce the risk of the first connecting structure 1231 falling out of the second connecting structure 1232.

[0116] Secondly, the inner container 12 can be a sheet metal part, and the sheet metal part can be made of an aluminum plate, a PCM plate, or a stainless steel plate. The inner container 12 can be formed by stamping the sheet metal part.

[0117] In the embodiment, as shown in Figure 16 and Figure 17 , the at least two bending segments include a fifth segment 1225 and a sixth segment 1226. The fifth segment 1225 is bent outwardly relative to the side wall of the inner container 12, and the sixth segment 1226 is bent upwardly relative to the fifth segment 1225. The fifth segment 1225 forms part of the wall surface of the air duct cavity 34, and the fifth segment 1225 is connected with the first wall 31. The sixth segment 1226 is connected with the second wall 33.

[0118] The fifth segment 1225 and the first wall 31 can be connected by at least one of plug-in connection and clamping, the sixth segment 1226 and the second wall 33 can be connected by at least one of plug-in connection and clamping, and part of the fifth segment 1225 forms part of a wall surface of the air duct cavity 34.

[0119] It should be noted that the fewer bending segments provided on the sheet metal part can reduce the damage to the structural strength, and can reduce the number of sheet metal stamping, thereby reducing the production cost and difficulty.

[0120] In some embodiments, as shown in Figure 14 and Figure 15 The inner container 12 further includes an angle sealing piece 129, the inner container 12 has a notch 1227 at the corner of the two adjacent walls of the open end, and the angle sealing piece 129 is arranged at the notch 1227. The angle sealing piece 129 is connected with the cabinet opening 3 and the inner container 12 respectively, and part of the wall surface of the angle sealing piece 129 is used to form part of the wall surface of the air duct cavity 34.

[0121] It can be understood that the end of the inner container 12 forms a notch 1227 at the corner of the two adjacent walls during the stamping and bending process, and the angle sealing piece 129 is used to connect the two adjacent walls to fill the notch 1227. The angle sealing piece 129, the inner container 12 and the cabinet opening 3 jointly define the air duct cavity 34.

[0122] The angle sealing piece 129 can be connected with the outer side wall of the inner container 12, or can be connected with the inner side wall of the inner container 12, and can be installed according to the actual structure.

[0123] The projection of the angle sealing piece 129 has a coinciding part with the projection of the open end of the inner container 12 in the first direction as the projection direction, and the angle sealing piece 129 is connected with the cabinet opening 3 and the inner container 12 respectively to increase the stability of the connection of the three.

[0124] In some embodiments, as shown in Figure 15 The angle sealing piece 129 includes a first face 1291, a second face 1292 and a third face 1293, the first face 1291 is connected with the outer side wall of the inner container 12, the second face 1292 is connected with the fifth segment 1225, and the third face 1293 is connected with the sixth segment 1226.

[0125] The first face 1291, the second face 1292 and the third face 1293 of the angle sealing piece 129 are arranged in a triangular shape. Figure 15 Figure 16 ​As shown, the second face 1292 and the fifth segment 1225 are provided with a first through hole 1294, the first wall 31 is provided with a connecting part 311, and the connecting part 311 is inserted into the first through hole 1294; or, the third face 1293 and the sixth segment 1226 are provided with a second through hole 1295, the second wall 33 is provided with a fifth connecting structure 1236, and the fifth connecting structure 1236 is clamped into the second through hole 1295; or, the second face 1292 and the fifth segment 1225 are provided with a first through hole 1294, the first wall 31 is provided with a connecting part 311, and the connecting part 311 is inserted into the first through hole 1294, and the third face 1293 and the sixth segment 1226 are provided with a second through hole 1295, and the fifth connecting structure 1236 is clamped into the second through hole 1295.

[0126] The fifth connecting structure 1236 is a sliding block, which has a clamping face and a guide face connected to each other. The guide face is arranged at an obtuse angle with the second wall 33 to facilitate the sliding of the fifth connecting structure 1236 into the second through hole 1295. The clamping face is arranged at a right angle or an acute angle with the second wall 33, and the clamping face is clamped into the second through hole 1295 to reduce the risk of the fifth connecting structure 1236 falling out of the second through hole 1295.

[0127] In some embodiments, as shown in Figure 16 and Figure 18 The first wall 31 is arranged in the storage compartment 14 and is provided with a plurality of air outlet groups, and the plurality of air outlet groups are respectively in communication with a plurality of cavities. The second wall 33 is arranged outside the storage compartment 14 and is provided with a reinforcing rib 331.

[0128] As shown in Figure 20 The second wall 33 is provided with a reinforcing rib 331, which can increase the structural strength of the cabinet opening 3. Each air outlet group can include one or more air outlets 342, and the plurality of air outlets 342 are arranged along the extension direction of the first wall 31 to achieve four-way air supply of the storage compartment 14, improve the refrigeration effect and efficiency, and improve the uniformity of the temperature.

[0129] The reinforcing rib 331 can be provided with a plurality of reinforcing ribs, which can be arranged at intervals along the extension direction of the second wall 33 to further increase the structural strength of the cabinet opening 3.

[0130] In some embodiments, as shown in Figure 24 The plurality of cavities include a first chamber 141 and a second chamber 142, and the first chamber 141 and the second chamber 142 are located on both sides of the refrigeration unit 2.

[0131] The refrigeration unit 2 divides the storage compartment 14 into the first chamber 141 and the second chamber 142. The first chamber 141 and the second chamber 142 can both be refrigeration chambers, both be freezing chambers, or one of the first chamber 141 and the second chamber 142 be a refrigeration chamber and the other be a freezing chamber.

[0132] As shown in Figure 24 the air duct structure includes a first part 343 having a first air outlet group in communication with the first compartment 141 and a second part 344 having a second air outlet group in communication with the second compartment 142; the air door 5 includes a first door 51 and a second door 52, the air inlet 341 is located between the first door 51 and the second door 52, the first door 51 is configured to control the communication and disconnection of the air inlet 341 with the first air outlet group, and the second door 52 is configured to control the communication and disconnection of the air inlet 341 with the second air outlet group.

[0133] Wherein the size of the first part 343 and the second part 344 can be determined according to the placement position of the refrigeration unit 2.

[0134] In the case where the air duct structure is located at the end of the cabinet 1 and extends around the circumference of the cabinet 1, in the case where the refrigeration unit 2 is located in the middle of the storage compartment 14, the first part 343 and the second part 344 are the same; in the case where the refrigeration unit 2 is placed on one side of the storage compartment 14, the first part 343 is larger or smaller than the second part 344.

[0135] The first air outlet group can have at least one air outlet 342, for example, 3, 4 or more can be provided, which can be determined according to the volume of the first compartment 141. A ventilation path is formed between the first air outlet group and the air inlet 341, the first door 51 is located in the ventilation path between the first air outlet group and the air inlet 341, and the first door 51 is used to control the amount of cold air entering the first compartment 141.

[0136] The second air outlet group can have at least one air outlet 342, for example, 3, 4 or more can be provided, which can be determined according to the volume of the second compartment 142. Another ventilation path is formed between the second air outlet group and the air inlet 341, the second door 52 is located in the ventilation path between the second air outlet group and the air inlet 341, and the second door 52 is used to control the amount of cold air entering the second compartment 142.

[0137] Wherein the air inlet 341 is located between the first door 51 and the second door 52, the first door 51 and the second door 52 can be controlled separately, for example, the first door 51 and the second door 52 can both be in an open state to communicate the ventilation path, or the first door 51 and the second door 52 can both be in a closed state to disconnect the ventilation path, or the first door 51 and the second door 52 can be one in an open state and the other in a closed state.

[0138] For example, the first door 51 and the second door 52 are arranged on both sides of the air inlet 341, in the case that the temperature of the first chamber 141 needs to be reduced, the first door 51 can be controlled to rotate to connect the air inlet 341 and the first air outlet group; in the case that the temperature of the first chamber 141 reaches a set value and does not need to be reduced, the first door 51 can be controlled to rotate reversely to disconnect the air inlet 341 and the first air outlet group.

[0139] In some embodiments, as shown in Figs. 1 and 2, the door body 4 can be split, and the door body 4 includes a plurality of sub-doors which are pivotally arranged at the open ends of the cavities one by one, so as to reduce the temperature interference between the cavities when the door body 4 is opened; or, the door body 4 can be an integral whole, and the inner wall of the door body 4 is provided with a plurality of abutting portions which are arranged one by one with the sub-doors, and in the case that the door body 4 covers the cabinet 1, the abutting portions abut against the end portions of the cavities to close the open ends of the cavities, so that the plurality of cavities can be opened at one time, and the taking of articles is facilitated. Figure 25 Figure 26 In some embodiments, as shown in Figs. 1 and 2, the door body 4 can be split, and the door body 4 includes a plurality of sub-doors which are pivotally arranged at the open ends of the cavities one by one, so as to reduce the temperature interference between the cavities when the door body 4 is opened; or, the door body 4 can be an integral whole, and the inner wall of the door body 4 is provided with a plurality of abutting portions which are arranged one by one with the sub-doors, and in the case that the door body 4 covers the cabinet 1, the abutting portions abut against the end portions of the cavities to close the open ends of the cavities, so that the plurality of cavities can be opened at one time, and the taking of articles is facilitated.

[0140] In some embodiments, the cabinet 1 is provided with a first mounting structure 13, and the refrigeration unit 2 is provided with a second mounting structure 24 which is used to connect with the first mounting structure 13.

[0141] In some embodiments, the first mounting structure 13 is arranged at the side wall of the cabinet 1, and the second mounting structure 24 is correspondingly arranged at the side wall of the refrigeration unit 2, and the second mounting structure 24 and the first mounting structure 13 can be clamped; or, the first mounting structure 13 is arranged at the bottom wall of the cabinet 1, and the second mounting structure 24 is correspondingly arranged at the bottom wall of the refrigeration unit 2, and the second mounting structure 24 and the first mounting structure 13 can be connected by plug-in connection; or, the first mounting structure 13 is arranged at the side wall and the bottom wall of the cabinet 1, and the second mounting structure 24 is correspondingly arranged at the side wall and the bottom wall of the refrigeration unit 2, and the second mounting structure 24 and the first mounting structure 13 can be connected by the connection mode of plug-in connection and clamping in cooperation.

[0142] It should be noted that the production line of the storage equipment includes two parallel sub-production lines which can produce simultaneously, one of the two sub-production lines produces the refrigeration unit 2, and the other produces the cabinet 1, after the refrigeration unit 2 is produced and assembled, the refrigeration unit 2 production line and the cabinet 1 production line are converged, and the refrigeration unit 2 and the cabinet 1 are assembled, that is, the assembly of each refrigeration part in the refrigeration unit 2 is separated from the production line of the storage equipment, and the multiple assembly beats of the multiple refrigeration parts and the cabinet 1 become the assembly of the refrigeration unit 2 assembly and the cabinet 1 assembly, therefore, compared with the production line of the storage equipment which is produced by sequentially assembling multiple parts, the two sub-production lines of the refrigeration unit 2 and the cabinet 1 are parallel and simultaneously produced, and the assembly of the two assemblies is performed, so that the production efficiency is improved, and the production beats and personnel are saved. ​

[0143] In the related art, the production line of the storage device is a production line in which all parts of the storage device are sequentially assembled, each part has a respective station, and multiple parts need to be sequentially assembled by machines or personnel according to an installation rhythm to complete the production of a storage device. When the production line of the storage device is at a certain installation rhythm, the machines or personnel of other installation stations are idle, causing waste of machines, personnel, and rhythm.

[0144] According to the storage device provided in the embodiments of the present application, the refrigeration unit 2 can be assembled with the first mounting structure 13 of the cabinet 1 through the second mounting structure 24. The assembly of each refrigeration part in the refrigeration unit 2 is separated from the production line of the storage device, and the multiple rhythms of assembling multiple refrigeration parts with the cabinet 1 become the assembly of two assemblies of the refrigeration unit 2 assembly and the cabinet 1, thereby improving the production efficiency and saving the production rhythm and personnel.

[0145] In some embodiments, as shown in Figure 2 The cabinet 1 includes an outer shell 11, an inner container 12, and a thermal insulation layer 15 located between the outer shell 11 and the inner container 12. The cabinet 1 is configured to form the thermal insulation layer 15 between the outer shell 11 and the inner container 12 after the refrigeration unit 2 is installed in the inner container 12.

[0146] In the production line of the cabinet 1, after the outer shell 11 and the inner container 12 are assembled, the production line of the refrigeration unit 2 intersects with the production line of the cabinet 1, and the refrigeration unit 2 is assembled with the cabinet 1. After the refrigeration unit 2 is assembled with the inner container 12, the rhythm of forming the thermal insulation layer 15 between the outer shell 11 and the inner container 12 is performed.

[0147] In this embodiment, since the gas return pipe group 233 in the refrigeration unit 2 needs to communicate with the compressor outside the inner container 12, the refrigeration unit 2 is assembled with the inner container 12 before the thermal insulation material is filled between the outer shell 11 and the inner container 12. This can allow part of the gas return pipe group 233 to be located in the thermal insulation layer 15. The thermal insulation layer 15 can protect and fix part of the gas return pipe group 233 located therein, reduce the occupation of the storage compartment 14, and simplify the assembly process of the cabinet 1 and the refrigeration unit 2.

[0148] In some embodiments, the refrigeration unit 2 includes an air supply port 211. In the case where the second mounting structure 24 is connected to any first mounting structure 13, the air supply port 211 communicates with the air inlet port 341.

[0149] It can be understood that the movement of the refrigeration unit 2 causes the air supply port 211 to move correspondingly. During the movement, the air supply port 211 remains in communication with the air inlet port 341. The first door 51 and the second door 52 are the end points of the travel of the air supply port 211.

[0150] In some embodiments, as shown in Figure 4 and Figure 13As shown, the first mounting structure 13 and the second mounting structure 24 extend along a first direction, which is the normal direction of the opening surface of the storage compartment 14.

[0151] The first mounting structure 13 and the second mounting structure 24 extend along a direction perpendicular to the opening surface of the storage compartment 14.

[0152] In the present embodiment, the refrigeration unit 2 is inserted into the storage compartment 14 from the opening surface of the storage compartment 14, i.e. the refrigeration unit 2 moves along the first direction, and the first mounting structure 13 and the second mounting structure 24 extending along the first direction can reduce the interference with the movement of the refrigeration unit 2, facilitate assembly, extend the connection length of the first mounting structure 13 and the second mounting structure 24, and increase the stability of the connection between the refrigeration unit 2 and the cabinet 1.

[0153] The first mounting structure 13 and the second mounting structure 24 at least include the following three structures:

[0154] Firstly, the first mounting structure 13 is arranged on the side wall of the cabinet 1, the second mounting structure 24 is arranged on the side wall of the refrigeration unit 2, one of the first mounting structure 13 and the second mounting structure 24 includes a sliding groove 241, the other of the first mounting structure 13 and the second mounting structure 24 includes a sliding rail matched with the sliding groove 241, and the sliding groove 241 extends to the end of the device.

[0155] The first mounting structure 13 includes the sliding groove 241, and the second mounting structure 24 includes the sliding rail; or the second mounting structure 24 includes the sliding groove 241, and the first mounting structure 13 includes the sliding rail.

[0156] The sliding groove 241 extends to the end of the device, i.e. one end of the sliding groove 241 is open, so as to facilitate the insertion of the sliding rail from the open end of the sliding groove 241, and improve the convenience of the assembly of the refrigeration unit 2 and the storage compartment 14.

[0157] The first mounting structure 13 and the second mounting structure 24 are connected in a concave-convex matching manner of the sliding groove 241 and the sliding rail, and the first mounting structure 13 and the second mounting structure 24 have a guiding effect on each other, so as to enable the refrigeration unit 2 to be inserted into the storage compartment 14 along the first direction.

[0158] Secondly, the first mounting structure 13 is arranged on the inner bottom wall of the cabinet 1, the second mounting structure 24 is arranged on the bottom wall of the refrigeration unit 2, one of the first mounting structure 13 and the second mounting structure 24 includes a sliding groove, the other of the first mounting structure 13 and the second mounting structure 24 includes a sliding rail matched with the sliding groove 241, and in the process of inserting the refrigeration unit 2 into the storage compartment 14, the sliding rail extends into the sliding groove, and the sliding groove is clamped with the sliding rail.

[0159] Thirdly, the above two connection modes are combined.

[0160] In some embodiments, the refrigeration unit 2 comprises a box body 21, a support assembly and a refrigeration assembly 23 installed in the box body 21; the second mounting structure 24 comprises a sliding groove 241 provided on the support assembly and an avoiding opening 242 provided on the box body 21, the avoiding opening 242 is used to avoid the sliding groove 241, the sliding groove 241 extends to the end of the support assembly, and the avoiding opening 242 extends to the end of the box body 21; the first mounting structure 13 comprises a sliding rail.

[0161] In this embodiment, the refrigeration unit 2 integrates a plurality of components including the box body 21, the support assembly and the refrigeration assembly 23. The box body 21 can be used to accommodate and protect the internal components; the support assembly can be used to support the refrigeration assembly 23 to reduce the extrusion force of the refrigeration assembly 23 caused by the deformation of the inner container 12 during the process of forming the thermal insulation layer 15 of the cabinet 1, and to protect and fix the refrigeration assembly 23; the refrigeration assembly 23 is used to generate cold air.

[0162] The second mounting structure 24 comprises a sliding groove 241 provided on the support assembly and an avoiding opening 242 provided on the box body 21, and the sliding rail can be connected with the sliding groove 241 of the support assembly through the avoiding opening 242, which can realize the connection and positioning of the box body 21 and the support assembly, and realize the connection and positioning of the box body 21, the support assembly and the inner container 12.

[0163] In some embodiments, when the inner container 12 is formed by stamping a sheet metal part, as shown in FIG. 6, the first mounting structure 13 comprises a mounting opening 131 and a plug-in part 132, the plug-in part 132 penetrates the mounting opening 131 and protrudes from the inner wall of the cabinet 1 to form a sliding rail, and the sliding rail penetrates the avoiding opening 242 and extends into the sliding groove 241. Figure 14 In this embodiment, the mounting opening 131 is provided on the inner container 12, and the plug-in part 132 is inserted into the mounting opening 131 to form the sliding rail after the production of the inner container 12 is completed, which reduces the production difficulty and production cost.

[0164] In some embodiments, when the inner container 12 is integrally formed by adsorption molding of a plastic part, as shown in FIG. 7, the sliding rail is formed integrally with the inner wall of the cabinet 1 and protrudes from the inner wall of the cabinet 1, wherein the side wall of the inner container 12 is deformed by adsorption to form a guide rail protruding from the inner wall of the cabinet 1, and the guide rail protrudes from the inner wall of the inner container 12, which reduces the production difficulty and production cost.

[0165] Figure 19 In this embodiment, different structures of the first mounting structure 13 are formed according to different materials, which reduces the production difficulty and production cost.

[0166] In some embodiments, as shown in FIG. 8, the first mounting structure 13 comprises a mounting opening 131 provided on the inner container 12 and a plug-in part 132 provided on the box body 21, the plug-in part 132 penetrates the mounting opening 131 and protrudes from the inner wall of the cabinet 1 to form a sliding rail, and the sliding rail penetrates the avoiding opening 242 and extends into the sliding groove 241.

[0167] In some embodiments, as shown in FIG. 8, the first mounting structure 13 comprises a mounting opening 131 provided on the inner container 12 and a plug-in part 132 provided on the box body 21, the plug-in part 132 penetrates the mounting opening 131 and protrudes from the inner wall of the cabinet 1 to form a sliding rail, and the sliding rail penetrates the avoiding opening 242 and extends into the sliding groove 241. Figure 22 ​As shown, the side wall of the box body 1 is provided with a plurality of first mounting structures 13 arranged at intervals along the distribution direction of the plurality of cavities, and the refrigeration unit 2 is provided with a second mounting structure 24 for connecting with the first mounting structure 13, and the second mounting structure 24 is selectively connected with at least one of the plurality of first mounting structures 13.

[0168] Among them, the connection of the second mounting structure 24 with different first mounting structures 13 can make the refrigeration unit 2 located at different positions in the storage compartment 14, so that the storage compartment 14 can be divided into cavities of different capacities as needed.

[0169] In this embodiment, by arranging a plurality of first mounting structures 13 arranged at intervals along the distribution direction of the plurality of cavities, the refrigeration unit 2 can be moved along the distribution direction of the plurality of cavities to adjust the capacity of each cavity, thereby increasing the practicability.

[0170] In some embodiments, the box body 21 includes a front cover plate and a rear cover plate, which define a mounting cabin in which the support assembly and the refrigeration assembly 23 are located, and the front cover plate and the rear cover plate are detachably connected to facilitate the installation and disassembly of the support assembly and the refrigeration assembly 23.

[0171] In some embodiments, as shown in Figure 2 and Figure 3 The refrigeration unit 2 includes a box body 21, a support assembly and a refrigeration assembly 23, the support assembly is arranged in the box body 21, and the refrigeration assembly 23 is mounted on the support assembly, and the outer side wall of the support assembly abuts against the inner side wall of the box body 21.

[0172] It can be understood that in the process of forming the heat preservation layer 15 of the box body 1, the foaming material expands, and the inner container 12 inevitably deforms towards the inside of the storage compartment 14, and the outer side wall of the support assembly abuts against the inner side wall of the box body 21. In the deformation process of the inner container 12, the support assembly generates a force resisting the deformation force of the inner container 12, which can reduce the deformation amount of the box body 21 and protect and fix the refrigeration assembly 23.

[0173] In some embodiments, as shown in Figure 7 , Figure 8 and Figure 9 The support assembly includes a heat insulation piece 221, a support body 222 and an air guide shell 223, the heat insulation piece 221 and the air guide shell 223 are arranged on both sides of the refrigeration assembly 23 along the second direction, and the support body 222 is arranged on the circumferential side of the refrigeration assembly 23 along the first direction and the third direction; the first direction is the normal direction of the opening surface of the storage compartment 14, and the third direction, the first direction and the second direction are perpendicular to each other.

[0174] Among them, the second direction is the distribution direction of the plurality of cavities, and the third direction is the direction intersecting with the distribution direction of the plurality of cavities.

[0175] In the embodiment, the at least two cavities are distributed along the second direction, and the refrigeration unit 2 is located between two adjacent cavities. The heat insulation member 221, the support body 222 and the air guide shell 223 are distributed in the upper, lower, left, right, front and rear directions of the refrigeration assembly 23 to further protect the refrigeration assembly 23 during the process of forming the heat preservation layer 15 of the cabinet 1.

[0176] The heat insulation member 221 plays a role of heat insulation and heat preservation. In the case of isolating multiple cavities for individual temperature control, the heat insulation member 221 can isolate the temperatures of two adjacent cavities and reduce the temperature interference between the two adjacent cavities.

[0177] In some embodiments, the heat insulation member 221 and the support body 222 are structural foams, and the heat insulation member 221 and the support body 222 are designed to have a density of 45-55 kg / cm 3 to effectively counteract the force generated by the foaming material during foaming.

[0178] In some embodiments, the heat insulation member 221 is arranged between the refrigeration assembly 23 and the box body 21, and the heat insulation member 221 is provided with a first air avoiding opening and a second air avoiding opening. The return air opening 212 of the refrigeration unit 2 is communicated with the first air avoiding opening and the storage compartment 14, and the supply air opening 211 of the refrigeration unit 2 is communicated with the second air avoiding opening and the storage compartment 14.

[0179] The first air avoiding opening is arranged in position with the return air opening 212 of the refrigeration unit 2 to enable the hot air in the cavity to enter the box body 21 through the return air opening 212 to exchange heat with the refrigeration assembly 23. The second air avoiding opening is arranged in position with the supply air opening 211 of the refrigeration unit 2 to enable the cold air generated by the refrigeration assembly 23 to enter the cavity through the supply air opening 211 to maintain the low temperature in the cavity.

[0180] In some embodiments, as shown in Figure 6 the support body 222 includes a connecting piece 2221 and two support pieces 2222 arranged on the two sides of the connecting piece 2221 along the third direction. The two support pieces 2222 are arranged on the two sides of the refrigeration assembly 23 along the third direction, and the connecting piece 2221 is arranged at the end of the refrigeration unit 2 along the first direction. The support pieces 2222 are connected with the inner side walls of the box body 21.

[0181] The sliding groove 241 is arranged on the side walls of the two support pieces 2222 away from each other along the third direction.

[0182] In the embodiment, the two ends of the connecting piece 2221 abut against the opposite side walls of the two support pieces 2222. During the process of forming the heat preservation layer 15 of the cabinet 1, the connecting piece 2221 can limit the relative movement of the two support pieces 2222 to protect the refrigeration assembly 23.

[0183] The support 2222 and the air guide shell 223 cooperate to reduce damage to the refrigeration assembly 23 caused by extrusion in the first direction during the process of forming the heat preservation layer 15 on the box body 1.

[0184] In some embodiments, as shown in Figure 6 The two supports 2222 are designed with pipe fixing holes of the evaporator 231, and the pipes of the evaporator 231 can be clamped with the pipe fixing holes in a concave-convex matching mode to fix the evaporator 231.

[0185] In some embodiments, as shown in Figure 3 , Figure 4 and Figure 8 The refrigeration assembly 23 further includes an evaporative fan 232; the air guide shell 223 is arranged on the side of the refrigeration assembly 23 away from the heat insulation member 221 along the second direction, and the air guide shell 223 and the heat insulation member 221 define a mounting position, and the evaporative fan 232 is mounted in the mounting position; and the air guide shell 223 is provided with a volute tongue 2231 on the side facing the evaporative fan 232.

[0186] The air guide shell 223 and the refrigeration assembly 23 are located on both sides of the evaporative fan 232 along the second direction, which protects and positions the evaporative fan 232, and the air guide shell 223 is provided with the volute tongue 2231 on the side facing the evaporative fan 232, which can guide and accelerate the airflow to increase the refrigeration efficiency.

[0187] In some embodiments, the air supply port 211 of the refrigeration unit 2 and the air return port 212 of the refrigeration unit 2 are arranged on different wall surfaces of the box body 21 to prolong the circulation path of the cold air sent out from the air supply port 211 and improve the uniformity of the temperature in the cavity.

[0188] In some embodiments, as shown in Figure 10 The air supply port 211 of the refrigeration unit 2 and the air return port 212 of the refrigeration unit 2 are arranged in an up-down distribution along the first direction, and the air supply port 211 of the refrigeration unit 2 is located above the air return port 212 of the refrigeration unit 2 to further prolong the circulation path of the cold air sent out from the air supply port 211 and improve the uniformity of the temperature in the cavity.

[0189] In some embodiments, the box body 21 is provided with the air supply port 211 and at least two air return ports 212; the air supply port 211 communicates with the at least two cavities; the two air return ports 212 are arranged on the two sides of the box body 21 along the second direction, one of the two air return ports 212 communicates with one of the adjacent two cavities of the at least two cavities, and the other of the two air return ports 212 communicates with the other of the adjacent two cavities of the at least two cavities.

[0190] In this embodiment, the at least two cavities are arranged along the second direction, and the refrigeration unit 2 is located between the adjacent two cavities.

[0191] The air supply ports 211 and the at least two air return ports 212 form multiple parallel air supply paths, and each cavity is in communication with at least one air supply path, so that cold air circulation is formed in each cavity, and the uniformity of the temperature in each cavity and the refrigeration efficiency are improved.

[0192] In some embodiments, as shown in Figure 9 Each air supply port group can include multiple air supply ports 211, and the multiple air supply ports 211 are in communication with the corresponding cavity.

[0193] In this embodiment, by arranging multiple air supply ports 211, the number of air supply ports 211 in each cavity is increased, the speed of the cold air generated by the refrigeration assembly 23 and discharged into the cavity is increased, and the refrigeration efficiency is improved.

[0194] In some embodiments, the air supply ports 211 include two, and the two air supply ports 211 are arranged on the side walls of the refrigeration unit 2 arranged opposite to each other along a direction intersecting the distribution direction of the multiple cavities.

[0195] The air inlet ports 341 include two, and the two air inlet ports 341 are in one-to-one communication with the two air supply ports 211.

[0196] The distribution direction of the multiple cavities is the second direction, the direction intersecting the distribution direction of the multiple cavities is the third direction, and the two air supply ports 211 are arranged on the side walls of the box body 21 arranged opposite to each other along the third direction. The cold air can be discharged into each cavity from different directions, and the uniformity of the temperature in each cavity and the refrigeration efficiency can be improved.

[0197] In some embodiments, the air supply ports 211 are arranged close to the top of the box body 21, so that the cold air discharged from the air supply ports 211 can naturally fall in the cavity, the uniformity of the temperature in each cavity and the refrigeration efficiency can be improved, and the energy consumption can be reduced.

[0198] In some embodiments, the storage device further includes a controller and multiple temperature sensors, the multiple temperature sensors are connected to the controller, at least one temperature sensor is arranged in each cavity, and the controller is connected to the refrigeration unit 2.

[0199] In this embodiment, by arranging the temperature sensors and the controller, the controller can control the refrigeration temperature of the refrigeration unit 2 according to the detection results of the multiple temperature sensors, so as to realize accurate control of the temperature, improve the automation of the system, realize temperature detection of each cavity, and improve the refrigeration effect.

[0200] The assembly process of the refrigeration unit 2 is described in detail as follows:

[0201] First, as shown in Figure 3As shown, the heat insulation 221 and a part of the temperature sensor are installed to the corresponding position of the front cover of the box body 21 to obtain a semi-finished product A;

[0202] Secondly, as shown in Figure 4 the evaporative fan 232 is installed to the corresponding position of the semi-finished product A to obtain a semi-finished product B;

[0203] Thirdly, as shown in Figure 5 the gas return pipe group 233 is connected and welded with the corresponding pipeline of the evaporator 231 to obtain an assembly C of the evaporator 231;

[0204] Fourthly, as shown in Figure 6 the assembly C of the evaporator 231 is assembled with the connecting piece 2221 and the two supporting pieces 2222 according to the corresponding structure to obtain a semi-finished product D;

[0205] Fifthly, as shown in Figure 7 the semi-finished product D is installed into the semi-finished product B to obtain a semi-finished product E;

[0206] Sixthly, as shown in Figure 8 the air guide shell 223 is installed to the corresponding position in the semi-finished product E to obtain a semi-finished product F;

[0207] Seventhly, another part of the temperature sensor is installed to the corresponding position of the back cover plate of the box body 21 to obtain a semi-finished product G;

[0208] Eighthly, as shown in Figure 9 and Figure 10 the semi-finished product G is installed to the semi-finished product F to finally complete the assembly of the refrigeration unit 2.

[0209] In some embodiments, the refrigeration unit 2 can also be divided into an assembly of the refrigeration component 23, the gas return pipe group 233 and the back cover plate of the box body 21, and the assembly of the refrigeration component 23 includes the supporting component, the front cover plate of the box body 21, the evaporative fan 232 and the evaporator 231.

[0210] In the embodiment, the refrigeration assembly 23 assembly can form a sub-line, and is produced simultaneously with the box body 1 production line. After the refrigeration assembly 23 assembly is produced and assembled, the refrigeration assembly 23 assembly line intersects with the box body 1 production line, the refrigeration assembly 23 assembly is assembled with the box body 1, and then the return air pipe group 233 and the rear cover plate of the box body 21 are sequentially assembled into the box body 1. That is, the assembly of the refrigeration assembly 23 assembly is separated from the production line of the storage device, and the multiple assembly beats of the refrigeration components assembled with the box body 1 become the assembly of the refrigeration assembly 23 assembly, the return air pipe group 233, the rear cover plate of the box body 21 and the box body 1. Therefore, compared with the production line of the storage device assembled by the multiple components, the two sub-lines of the refrigeration assembly 23 assembly and the box body 1 are parallel and simultaneously produced, and the assembly of the four assemblies is performed, so that the production efficiency is improved, and the production beat and personnel are saved.

[0211] The assembly process of the refrigeration assembly is specifically described as follows:

[0212] First, a part of the temperature sensor is installed at the corresponding position of the front box cover of the box body 21 to obtain a semi-finished product A.

[0213] Second, the heat insulation piece 221 is installed at the corresponding position in the semi-finished product A to obtain a semi-finished product B.

[0214] Third, the evaporative fan 232 is installed at the corresponding position of the semi-finished product B to obtain a semi-finished product C.

[0215] Fourth, the air guide shell 223 is installed at the corresponding position in the semi-finished product C to obtain a semi-finished product D.

[0216] Fifth, the evaporator 231 and the two support pieces 2222 are assembled to obtain a semi-finished product E.

[0217] Sixth, the semi-finished product E is installed at the corresponding position in the semi-finished product D to obtain a semi-finished product F.

[0218] Seventh, the connecting piece 2221 is installed at the corresponding position in the semi-finished product F to complete the pre-assembly of the evaporator 231 compartment assembly.

[0219] Secondly, the application further provides an assembly process of a storage device, comprising the first step to the third step.

[0220] Firstly, the assembled refrigeration unit 2 is placed at the open end of the inner container 12, and the refrigeration unit 2 is inserted into the inner container 12 under the condition that the second mounting structure 24 of the refrigeration unit 2 is aligned with the first mounting structure 13 of the inner container 12.

[0221] In this step, as Figure 11As shown, the refrigeration unit 2 assembly is assembled with the inner container 12. During installation, the sliding groove 241 designed on the refrigeration unit 2 is aligned with the sliding rail on the inner container 12, and is inserted from top to bottom and fixed in place. The gas return pipe group 233 is fixed into the through hole 121 reserved on the top of the inner container 12, and a semi-finished product a is obtained.

[0222] The first mounting structure 13 can be a sliding rail, and the second mounting structure 24 includes a sliding groove 241.

[0223] After this step is completed, as shown, Figure 12 the cabinet opening 3 is installed on the semi-finished product a. During installation, the connecting structure on the first wall 31 and the second wall 33 of the cabinet opening 3 is aligned with the connecting structure of the bent section of the inner container 12, and is inserted from top to bottom and clamped in place.

[0224] In the second step, the inner container 12 assembled with the refrigeration unit 2 is assembled into the outer shell 11.

[0225] In this step, the inner container 12 can be placed into the outer shell 11, or the outer shell 11 can be placed outside the inner container 12, and the overall pre-assembly of the cabinet 1 is completed.

[0226] In the third step, the thermal insulation layer 15 is formed between the inner container 12 and the outer shell 11.

[0227] In this step, as shown, Figure 1 foaming material is filled between the inner container 12 and the outer shell 11 to form the thermal insulation layer 15.

[0228] According to the assembly process of the storage equipment provided in the embodiments of the present application, the refrigeration unit 2 can be assembled with the first mounting structure 13 of the cabinet 1 through the second mounting structure 24. The assembly of each refrigeration component in the refrigeration unit 2 is separated from the production line of the storage equipment, and the multiple assembly beats of the multiple refrigeration components with the cabinet 1 become the assembly of the refrigeration unit 2 assembly and the cabinet 1, thereby improving the production efficiency and saving production beats and personnel.

[0229] In some embodiments, the inner container 12 is provided with a mounting port 131.

[0230] In the first step: the assembled refrigeration unit 2 is placed at the open end of the inner container 12. Before the refrigeration unit 2 is inserted into the inner container 12 under the condition that the second mounting structure 24 of the refrigeration unit 2 is aligned with the first mounting structure 13 of the inner container 12, the assembly process includes:

[0231] The plug-in part 132 is installed in the mounting port 131 of the inner container 12, and the plug-in part 132 penetrates the mounting port 131 and protrudes from the inner wall of the inner container 12 to form the first mounting structure 13.

[0232] In some embodiments, the first mounting structure 13 includes a sliding rail, and the sliding rail is formed integrally with the inner wall of the cabinet 1 and protrudes from the inner wall of the cabinet 1.

[0233] The first step is to place the assembled refrigeration unit 2 at the open end of the inner container 12, and insert the refrigeration unit 2 into the inner container 12 with the second mounting structure 24 of the refrigeration unit 2 aligned with the first mounting structure 13 of the inner container 12, including aligning the second mounting structure 24 with the slide rail and inserting and fixing it in place.

[0234] In a third aspect, the application also provides another assembly process of the storage equipment, including the first step to the fifth step.

[0235] The first step is to place the refrigeration assembly of the refrigeration unit 2 at the open end of the inner container 12, and insert the refrigeration assembly into the inner container 12 with the second mounting structure 24 of the refrigeration unit 2 aligned with the first mounting structure 13 of the inner container 12.

[0236] The refrigeration unit 2 includes a refrigeration assembly, a return air pipe group 233, and a rear cover plate of a box body 21, and the refrigeration assembly includes a support assembly, a front cover plate of the box body 21, an evaporative fan 232, and an evaporator 231.

[0237] The second step is to connect the return air pipe group 233 of the refrigeration unit 2 with the inlet and outlet pipeline of the refrigeration assembly.

[0238] In this step, the return air pipe group 233 is inserted into the semi-finished product b through the reserved holes of the inner container 12 and the front cover plate of the box body 21, and the inlet and outlet pipes of the return air pipe group 233 are connected and welded to the inlet and outlet pipeline of the evaporator 231 to obtain a semi-finished product c.

[0239] The third step is to assemble the rear cover plate of the refrigeration unit 2 with the refrigeration assembly.

[0240] The fourth step is to assemble the inner container 12 with the refrigeration unit 2 into the outer shell 11.

[0241] The fifth step is to form a heat preservation layer 15 between the inner container 12 and the outer shell 11.

[0242] According to the assembly process of the storage equipment provided in the embodiments of the application, the refrigeration unit 2 can be assembled with the box body 1 through the second mounting structure 24 and the first mounting structure 13 of the box body 1, and the assembly of each refrigeration part in the refrigeration unit 2 is separated from the production line of the storage equipment, and the multiple assembly beats of the evaporative fan, the evaporator, the return air pipe group, the front cover plate, and the rear cover plate are changed into the assembly of the refrigeration assembly, the return air pipe group 233, the rear cover plate of the box body 21, and the box body 1, thereby improving the production efficiency and saving the production beats and personnel.

[0243] In some embodiments, the inner container 12 is provided with a mounting port 131.

[0244] Before the refrigeration assembly assembly of the refrigeration unit 2 is inserted into the inner container 12, the assembly process includes: inserting and fixing the spigot 132 into the mounting port 131, the spigot 132 penetrates the mounting port 131 and protrudes from the inner wall of the inner container 12 to form the first mounting structure 13.

[0245] In this step, as shown in the figure, two spigots 132 are respectively installed into the mounting ports 131 on opposite sides of the inner container 12, and the spigots 132 are fixed in place with adhesive tape, and four corner seals 129 are fixed to the corners of the inner container 12 to obtain a semi-finished product a. Figure 13

[0246] In some embodiments, the first mounting structure 13 includes a sliding rail which is formed integrally with the inner wall of the box body 1 and protrudes from the inner wall of the box body 1; and the refrigeration assembly assembly of the refrigeration unit 2 is placed at the open end of the inner container 12, and the refrigeration assembly assembly is inserted into the inner container 12 with the second mounting structure 24 of the refrigeration unit 2 aligned with the first mounting structure 13 of the inner container 12, including:

[0247] The second mounting structure 24 is aligned with the sliding rail and inserted and fixed in place.

[0248] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and are not limited in number, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0249] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0250] ​In the description of the application, "first feature", "second feature" can include one or more of the features.

[0251] In the description of the application, "a plurality of" means two or more.

[0252] In the description of the application, "on" or "under" the first feature in the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0253] In the description of the application, "on", "above" and "over" the first feature in the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height.

[0254] In the description of the application, the description of the reference terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description of the application, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0255] Although the embodiments of the application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the application, and the scope of the application is defined by the claims and their equivalents.

Claims

1. A storage device, characterized by, The application relates to a refrigerator, comprising: a cabinet defining a storage compartment having an open end; a refrigeration unit arranged in the storage compartment and separating the storage compartment into a plurality of cavities; a cabinet door mounted at the open end of the cabinet and provided with an air duct cavity having an air inlet and a plurality of air outlet groups, the air inlet and the plurality of air outlet groups forming a plurality of ventilation paths, the air inlet being in communication with the refrigeration unit, and the plurality of ventilation paths being connected to the plurality of cavities one by one; a plurality of dampers rotatably arranged in the plurality of ventilation paths; a door body pivotally mounted on the cabinet door for closing the storage compartment.

2. The storage apparatus of claim 1, wherein, The cabinet comprises an outer shell, an inner container and a thermal insulation layer between the outer shell and the inner container, and part of the wall surface of the inner container is used to form part of the wall surface of the air duct cavity.

3. The storage apparatus of claim 2, wherein, The open end of the inner container comprises at least two bending sections connected in sequence and relatively bent. The cabinet door comprises a first wall, a top wall and a second wall connected in sequence, the first wall is located inside the second wall and is spaced apart from the second wall, and the first wall and the second wall are connected to different sections of the at least two bending sections to form the air duct cavity between the cabinet door and the inner container.

4. The storage apparatus of claim 3, wherein, The at least two bending sections comprise a first section, a second section, a third section and a fourth section, the first section is bent outwardly relative to the side wall of the inner container, the second section is bent upwardly relative to the first section, the third section is bent outwardly relative to the second section, and the fourth section is bent upwardly relative to the third section. The second section is connected to the outer side of the first wall, the third section forms part of the wall surface of the air duct cavity, and the fourth section is connected to the second wall.

5. The storage apparatus of claim 3, wherein The at least two bending sections comprise a fifth section and a sixth section, the fifth section is bent outwardly relative to the side wall of the inner container, and the sixth section is bent upwardly relative to the fifth section. The fifth section forms part of the wall surface of the air duct cavity, the fifth section is connected to the first wall, and the sixth section is connected to the second wall.

6. The storage apparatus of claim 3, wherein, The first wall is arranged in the storage compartment and provided with a plurality of air outlet groups, the plurality of air outlet groups are respectively in communication with the plurality of cavities, and the second wall is arranged outside the storage compartment and provided with a reinforcing rib.

7. The storage apparatus of claim 1, wherein, The plurality of cavities comprise a first chamber and a second chamber, and the first chamber and the second chamber are located on both sides of the refrigeration unit. The air duct cavity comprises a first part and a second part, the first part has a first air outlet group in communication with the first chamber, and the second part has a second air outlet group in communication with the second chamber. The dampers comprise a first door and a second door, the air inlet is located between the first door and the second door, the first door is configured to control the communication and disconnection of the air inlet and the first air outlet group, and the second door is configured to control the communication and disconnection of the air inlet and the second air outlet group.

8. The storage apparatus of claim 1, wherein, The cabinet comprises an outer shell, an inner container and a thermal insulation layer between the outer shell and the inner container, and the cabinet is configured to form the thermal insulation layer between the outer shell and the inner container after the refrigeration unit is mounted on the inner container.

9. The storage apparatus according to any one of claims 1-8, wherein, The side wall of the box is provided with a plurality of first mounting structures arranged at intervals along the distribution direction of the plurality of cavities, and the refrigeration unit is provided with a second mounting structure for connecting with the first mounting structures, and the second mounting structure is selectively connected with at least one of the plurality of first mounting structures.

10. The storage apparatus of claim 9, wherein, One of the first mounting structure and the second mounting structure comprises a sliding groove, the other of the first mounting structure and the second mounting structure comprises a sliding rail in sliding cooperation with the sliding groove, and the sliding groove extends to the end of the device.

11. The storage apparatus of claim 10, wherein, The refrigeration unit comprises a box body, a support assembly and a refrigeration assembly installed in the box body. The second mounting structure comprises a sliding groove arranged on the support assembly and a avoiding opening arranged on the box body, the avoiding opening is used for avoiding the sliding groove, the sliding groove extends to the end of the support assembly, and the avoiding opening extends to the end of the box body. The first mounting structure comprises the sliding rail.

12. The storage apparatus of claim 11, wherein, The first mounting structure comprises a mounting opening and a plug-in piece, the plug-in piece penetrates the mounting opening and protrudes from the inner wall of the box body to form the sliding rail, the sliding rail penetrates the avoiding opening and extends into the sliding groove; or The sliding rail is formed integrally with the inner wall of the box body and protrudes from the inner wall of the box body.

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