Cold storage door body and cold storage

Abstract

The cold storage door body comprises a first opening and closing assembly and a second opening and closing assembly, the first opening and closing assembly comprises a first heat preservation door and a middle beam piece, the first heat preservation door is rotationally connected to the first side of a door frame, the middle beam piece is connected to the free end of the first heat preservation door, and at least part of the middle beam piece extends out of the first heat preservation door; the first door seal assembly is at least arranged on the periphery of the first heat preservation door, and the middle beam piece covers at least part of the first door seal assembly; the second opening and closing assembly is rotationally connected to the second side of the door frame; the second door seal assembly is at least arranged on the periphery of the second opening and closing assembly; when the cold storage door body is in a closed state, the free end of the second opening and closing assembly abuts against the middle beam piece through at least part of the second door seal assembly, and the rest of the first door seal assembly and the rest of the second door seal assembly jointly abut against the door frame. The cold storage door body can effectively improve the sealing effect and the rainproof effect of a cold storage, is excellent in heat preservation performance and can provide a larger carrying space for a user.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a cold storage door and a cold storage. Background Art

[0002] Cold storage refers to a warehouse that maintains a certain temperature and humidity condition through artificial refrigeration, and is mainly used for frozen processing and refrigeration of food. Cold storage door refers to the door body installed in cold storage equipment, frozen warehouses and other freezing environment equipment to play the role of insulation and sealing. During the use of cold storage door, if the sealing effect is not good, it will lead to poor insulation effect of cold storage, thereby reducing the shelf life of fruits, vegetables, meat and other products stored in the cold storage, causing waste.

[0003] In the related art, in order to enhance the thermal insulation performance of the cold storage and reduce the gap between the door frame and the cold storage door body, the cold storage door body is generally set to a single-door form. However, in order to prevent a large amount of cold air leakage, the single-door door body can only be opened to a limited angle, and the space for carrying items is limited, and large-volume goods cannot pass through, or multiple people cannot work at the same time. Utility Model Content

[0004] The purpose of the present application is to provide a cold storage door body and a cold storage, which adopts a double-door cold storage door body, which can increase the space for transporting items and reduce the leakage of cold air during the transportation process, thereby improving the sealing effect of the cold storage door body.

[0005] To this end, on the first aspect, an embodiment of the present application provides a cold storage door body, which includes: a first opening and closing assembly, including a first insulation door and a center beam, the first insulation door is rotatably connected to a first side of a door frame, the center beam is connected to a free end of the first insulation door and at least partially extends out of the first insulation door; a first door sealing assembly, at least arranged on a periphery of the first insulation door, the center beam covers at least a portion of the first door sealing assembly; a second opening and closing assembly, rotatably connected to a second side of the door frame; and a second door sealing assembly, at least arranged on a periphery of the second opening and closing assembly; when the cold storage door body is in a closed state, the free end of the second opening and closing assembly is pressed against the center beam through at least a portion of the second door sealing assembly, and the remaining part of the first door sealing assembly and the remaining part of the second door sealing assembly are jointly abutted against the door frame.

[0006] In one possible embodiment, the first door sealing assembly includes a first sealing area and a connecting area, the first sealing area is used to press against a part of the door frame when the cold storage door is closed, and the connecting area is arranged between the first insulation door and the middle beam; and / or, the second door sealing assembly includes a second sealing area and an abutting area, the second sealing area is used to press against another part of the door frame when the cold storage door is closed, and the abutting area is arranged on the free end of the second door sealing assembly, and is used to press against the middle beam when the cold storage door is closed.

[0007] In one possible embodiment, the first door seal assembly includes a first door seal and a second door seal that are spaced apart, the first door seal is disposed on the inner side of the second door seal, and the first door seal has magnetism; and / or, the second door seal assembly includes a third door seal and a fourth door seal that are spaced apart, the third door seal is disposed on the inner side of the fourth door seal, and the third door seal has magnetism.

[0008] In a possible embodiment, the first opening and closing component also includes a first seal and a second seal. The first seal is arranged above the middle beam and is used to seal the gap between the top end of the middle beam and the corresponding door frame; the second seal is arranged below the middle beam and is used to seal the gap between the bottom end of the middle beam and the corresponding door frame.

[0009] In a possible embodiment, the first thermal insulation door includes a first inner door shell, a first outer door shell and a first cold insulation member, the outer side of the first inner door shell is connected to the inner side of the first outer door shell through the first cold insulation member, the size of the first inner door shell is smaller than that of the first outer door shell, so as to form a first internal angle between the free end of the first inner door shell and the free end of the first outer door shell, and at least part of the center beam is connected to the first internal angle.

[0010] In a possible embodiment, the first opening and closing component also includes a first connecting member, a second cold insulation member and a third cold insulation member, the first end of the first connecting member is connected to the first inner door shell, the second end of the first connecting member extends out of the first outer door shell, the first connecting member and the first inner angle are combined to form a plug-in groove, and the middle beam member is inserted into the plug-in groove; the second cold insulation member is located in the plug-in groove and is arranged between the middle beam member and the first connecting member, and the third cold insulation member is arranged on the side of the middle beam member away from the second cold insulation member.

[0011] In a possible embodiment, the second opening and closing assembly includes a second insulation door and a lock body. The second insulation door is rotatably connected to the second side of the door frame. The lock body is arranged at the free end of the second insulation door for locking the second insulation door and the corresponding door frame.

[0012] In a possible embodiment, the lock body includes a first tube body, a second tube body, a third tube body and a lock head. The lock head is arranged on the first tube body and divides the first tube body into an upper chamber and a lower chamber. The second tube body is embedded in the upper chamber. The lower end of the second tube body is plugged into the first end of the lock head. The upper end of the second tube body is provided with a first lock tongue, and the first lock tongue extends out of the first tube body; the third tube body is embedded in the lower chamber, the upper end of the third tube body is plugged into the second end of the lock head, and the lower end of the third tube body is provided with a second lock tongue, and the second lock tongue extends out of the first tube body; the first tube body is embedded in the second insulation door, and the lock head exposes the second insulation door. The extension or retraction of the second tube body and the third tube body is controlled by the lock head to realize the locking or loosening of the first lock tongue and the second lock tongue with the corresponding door frames respectively.

[0013] In a possible embodiment, the second thermal insulation door includes a second inner door shell, a second outer door shell and a fourth cold insulation member, the outer side of the second inner door shell is connected to the inner side of the second outer door shell through the fourth cold insulation member, the size of the second inner door shell is smaller than that of the second outer door shell, so as to form a second internal angle between the free end of the second inner door shell and the free end of the second outer door shell, and the second internal angle is used to abut against the middle beam member extending out of the first thermal insulation door.

[0014] In a second aspect, the present application further provides a cold storage, which comprises: a storage body having a containing chamber, with a door frame provided on the storage body; and the cold storage door body as described above, which is installed on the door frame in an openable and closable manner.

[0015] In a possible implementation, it also includes a detection control component, a refrigeration component and a lighting component. The detection control component is electrically connected to the refrigeration component and the lighting component, respectively. The detection control component is configured to detect whether the second opening and closing component is open, and when the second opening and closing component is in an open state, control the refrigeration component to operate in an energy-saving manner and turn on the lighting component.

[0016] According to the cold storage door body and cold storage provided in the embodiment of the present application, the cold storage door body is arranged in a double-door form. Compared with the technical solution in which a single-door door body can only be opened to a limited angle when taking and placing goods, the cold storage door body with a double-door structure can open one of the first opening and closing components and the second opening and closing component at a full angle when taking and placing goods, so as to provide users with a larger carrying space, facilitate users to take goods in the cold storage, and reduce the leakage of cold air during transportation; and, by arranging a middle beam member on the free end of the first thermal insulation door, and making part of the middle beam member extend out of the first thermal insulation door, so that when the cold storage door body is closed, the inner wall of the second opening and closing component is abutted against the outer wall of the part of the middle beam member extending out of the first thermal insulation door, so that the second opening and closing component can be locked to the first thermal insulation door through the middle beam member, and the sealing performance of the first opening and closing component and the second opening and closing component at their opening and closing can be improved through the middle beam member. At the same time, since the part of the middle beam extending out of the first thermal insulation door has a certain abutment distance in the length direction of the door frame, the abutment distance can effectively increase the contact area between the middle beam and the second opening and closing assembly, thereby enhancing the sealing performance and rainproof performance of the cold storage door body at its opening and closing position; in addition, at least part of the second door sealing assembly is also provided at the free end of the second opening and closing assembly, and the sealing performance at the free end of the middle beam and the second opening and closing assembly can be further improved by the part of the second door sealing assembly. In addition, when the cold storage door body is closed, the gap between the first opening and closing assembly / the second opening and closing assembly and the door frame can be sealed by the middle beam, the first door sealing assembly and the second door sealing assembly. In this way, the double-door cold storage door provided in the embodiment of the present application, on the one hand, can provide users with a sufficiently large carrying space by opening one of the door bodies of the first opening and closing components and the second opening and closing components at a full angle, thereby reducing the leakage of cold air during transportation; on the other hand, when the cold storage door body is in a closed state, the first door sealing component and the second door sealing component are used to achieve sealing between the periphery of the cold storage door body and the door frame, the opening and closing of the first opening and closing component and the second opening and closing component are sealed by the middle beam component, and the connection between the second opening and closing component and the middle beam component is sealed by the part of the second door sealing component corresponding to the middle beam component, etc., thereby effectively preventing cold air from leaking out from the gap in the cold storage door body and greatly reducing the energy consumption of the cold storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In addition, in the drawings, the same components are marked with the same reference numerals, and the drawings are not drawn according to the actual scale.

[0018] Figure 1A schematic structural diagram of a cold storage door provided in an embodiment of the present application is shown;

[0019] Figure 2 A schematic structural diagram of a first opening and closing assembly of a cold storage door provided in an embodiment of the present application is shown;

[0020] Figure 3 Show Figure 2 A side view of the first opening and closing assembly shown;

[0021] Figure 4 Show Figure 3 A schematic diagram of the local enlarged structure at A;

[0022] Figure 5 A schematic diagram showing the structure of the second opening and closing assembly of the cold storage door provided in an embodiment of the present application is shown;

[0023] Figure 6 Show Figure 5 A side view of the second opening and closing assembly shown;

[0024] Figure 7 Show Figure 6 A schematic diagram of the local enlarged structure at B;

[0025] Figure 8 Show Figure 5 An exploded view of the lock body of the second opening and closing assembly shown;

[0026] Fig. 9 Another perspective view of the second opening and closing assembly of the cold storage door provided in the embodiment of the present application is shown;

[0027] Fig.10 A schematic diagram of the structure of a cold storage provided in an embodiment of the present application is shown;

[0028] Fig.11 Show Fig.10 Schematic diagram of the local enlarged structure at point C.

[0029] Description of reference numerals:

[0030] 100, first opening and closing assembly; 110, first heat-insulating door; 111, first inner door shell; 112, first outer door shell; 113, first cold-insulating member; 120, middle beam member; 130, first sealing member; 140, second sealing member; 150, first connecting member; 160, second cold-insulating member; 170, third cold-insulating member;

[0031] 200, first door seal assembly; 210, first door seal; 220, second door seal;

[0032] 300, second opening and closing assembly; 310, second heat-insulating door; 311, second inner door shell; 312, second outer door shell; 313, fourth cold-insulating member; 320, lock body; 321, first tube body; 322, second tube body; 3221, first locking tongue; 323, third tube body; 3231, second locking tongue; 324, lock head;

[0033] 400, second door seal assembly; 410, third door seal assembly; 420, fourth door seal assembly;

[0034] 10. Storage body; 11. Door frame; 20. Cold storage door; 30. Detection and control components. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0036] like Figures 1 to 4 As shown, an embodiment of the present application provides a cold storage door body, which includes: a first opening and closing assembly 100, including a first insulation door 110 and a center beam 120, the first insulation door 110 is rotatably connected to a first side of a door frame 11, the center beam 120 is connected to a free end of the first insulation door 110, and at least partially extends out of the first insulation door 110; a first door sealing assembly 200, at least arranged on the periphery of the first insulation door 110, the center beam 120 covers at least a portion of the first door sealing assembly 200; a second opening and closing assembly 300, rotatably connected to a second side of the door frame 11; and a second door sealing assembly 400, at least arranged on the periphery of the second opening and closing assembly 300; when the cold storage door body 20 is in a closed state, the free end of the second opening and closing assembly 300 is pressed against the center beam 120 through at least a portion of the second door sealing assembly 400, and the remaining part of the first door sealing assembly 200 and the remaining part of the second door sealing assembly 400 are jointly abutted against the door frame 11.

[0037] In the present embodiment, the cold storage door body 20 is configured as a composite component including at least a first opening and closing assembly 100, a first door sealing assembly 200, a second opening and closing assembly 300 and a second door sealing assembly 400. The first opening and closing assembly 100 can be a left door body, which is configured as a composite component including at least a first thermal insulation door 110 and a center beam 120. The first thermal insulation door 110 can be a square door body, which can effectively reduce the loss of cold in the cold storage and reduce energy consumption; the center beam 120 can be a rectangular long plate, which extends along the height direction of the first thermal insulation door 110, and both ends of which are accommodated in the first thermal insulation door 110 in this direction, so that it can be accommodated or abutted on the door frame 11 in the closed state; the center beam 120 at least partially extends out of the first thermal insulation door 110 in its width direction to form a protective partition at the free end of the first thermal insulation door 110.

[0038] It should be explained that the length direction of the middle beam 120 is the height direction of the door frame 11 in the closed state, and the width direction of the middle beam 120 is the length direction of the door frame 11 in the closed state. The first door sealing assembly 200 can be a rectangular sealing ring, a part of which is arranged between the first thermal insulation door 110 and the middle beam 120 to enhance the sealing performance between the middle beam 120 and the first thermal insulation door 110; the other part is exposed from the middle beam 120 and is arranged on the inner side wall periphery of the first thermal insulation door 110, so that when the first opening and closing assembly 100 is closed, an interference fit is formed between the first thermal insulation door 110 and the corresponding door frame 11, thereby enhancing the sealing performance between the first opening and closing assembly 100 and the corresponding door frame 11. The second opening and closing assembly 300 can be a square door body, the free end of which can abut against the outer side of the middle beam 120 in the closed state, and give the middle beam 120 an inward extrusion force to prevent the middle beam 120 from moving outward, thereby locking the first opening and closing assembly 100. The second door sealing component 400 can be a rectangular sealing ring, a portion of which is arranged at the edge of the inner wall of the free end of the second opening and closing component 300 to enhance the sealing performance between the second opening and closing component 300 and the center beam 120 in the closed state; the other portion is arranged on the periphery of the inner wall of the second opening and closing component 300 to form an interference fit between the second opening and closing component 300 and the corresponding door frame 11 in the closed state, thereby enhancing the sealing performance between the second opening and closing component 300 and the corresponding door frame 11.

[0039] As described above, the opening and closing process of the cold storage door body 20 is as follows: when the cold storage door body 20 needs to be closed, the second opening and closing assembly 300 is rotated and pressed against the middle beam 120, so that the middle beam 120 is subjected to an inward extrusion force, thereby locking the first opening and closing assembly 100. At this time, the middle beam 120 is arranged on the inner side of the opening and closing part of the first thermal insulation door 110 and the second opening and closing assembly 300 to achieve the sealing of the first thermal insulation door 110 and the second opening and closing assembly 300 at the opening and closing part of the two; at the same time, the first thermal insulation door 110 is provided with At least part of the first door seal assembly 200 is interference-connected at the corresponding door frame 11, and at least part of the second door seal assembly 400 provided on the second opening and closing assembly 300 is interference-connected at the corresponding door frame 11, so as to achieve the sealing between the first opening and closing assembly 100 and the second opening and closing assembly 300 and the door frame 11; in addition, at least part of the second door seal assembly 400 provided on the inner side wall of the free end of the second opening and closing assembly 300 is interference-connected on the middle beam 120, so as to achieve the sealing between the second opening and closing assembly 300 and the middle beam 120. When it is necessary to open the cold storage door body 20, the second opening and closing assembly 300 is rotated in the reverse direction to release the squeezing of the second opening and closing assembly 300 on the middle beam 120, thereby releasing the locking of the first opening and closing assembly 100. At this time, the second opening and closing assembly 300 is rotated in the direction away from the first opening and closing assembly 100, and the cold storage is opened.

[0040] The cold storage door body 20 provided in the embodiment of the present application is arranged in a double-door form. Compared with the technical solution in which a single-door door body can only be opened to a limited angle when taking and placing goods, the cold storage door body 20 with a double-door structure can open one of the first opening and closing components 100 and the second opening and closing components 300 at a full angle when taking and placing goods, so as to provide users with a larger carrying space, facilitate users to take goods in the cold storage, and reduce the leakage of cold air during the transportation process; and, by arranging a middle beam 120 on the free end of the first thermal insulation door 110, and making part of the middle beam 120 extend out of the first thermal insulation door 110, when the cold storage door body 20 is closed, the inner wall of the second opening and closing component 300 is abutted against the outer wall of the part of the middle beam 120 extending out of the first thermal insulation door 110, so that the second opening and closing component 300 can be locked to the first thermal insulation door 110 through the middle beam 120, and the sealing performance of the first opening and closing component 100 and the second opening and closing component 300 at their opening and closing can be improved through the middle beam 120. At the same time, since the part of the middle beam 120 extending out of the first thermal insulation door 110 has a certain abutment distance in the length direction of the door frame 11, the abutment distance can effectively increase the contact area between the middle beam 120 and the second opening and closing assembly 300, thereby enhancing the sealing performance and rainproof performance of the cold storage door body 20 at its opening and closing position; in addition, at least part of the second door sealing assembly 400 is also provided at the free end of the second opening and closing assembly 300, and the sealing performance at the free end of the middle beam 120 and the second opening and closing assembly 300 can be further improved by the part of the second door sealing assembly 400. In addition, when the cold storage door body 20 is closed, the gap between the first opening and closing assembly 100 / the second opening and closing assembly 300 and the door frame 11 can be sealed by the middle beam 120, the first door sealing assembly 200 and the second door sealing assembly 400. In this way, the double-door cold storage door body 20 provided in this embodiment, on the one hand, can provide users with a sufficiently large transportation space by opening one of the door bodies of the first opening and closing components 100 and the second opening and closing components 300 at a full angle, thereby reducing the leakage of cold air during transportation; on the other hand, when the cold storage door body 20 is in a closed state, the first door sealing component 200 and the second door sealing component 400 are used to achieve sealing between the periphery of the cold storage door body 20 and the door frame 11, the opening and closing of the first opening and closing component 100 and the second opening and closing component 300 are sealed by the middle beam 120, and the connection between the second opening and closing component 300 and the middle beam 120 is sealed by the part of the second door sealing component 400 corresponding to the middle beam 120, etc., so as to effectively prevent cold air from leaking out from the gap of the cold storage door body 20, thereby greatly reducing the energy consumption of the cold storage.

[0041] In one possible embodiment, the first door sealing assembly 200 includes a first sealing area and a connecting area, the first sealing area is used to press against a part of the door frame 11 when the cold storage door body 20 is closed, and the connecting area is arranged between the first insulation door 110 and the middle beam 120; and / or, the second door sealing assembly 400 includes a second sealing area and an abutting area, the second sealing area is used to press against another part of the door frame 11 when the cold storage door body 20 is closed, and the abutting area is arranged on the free end of the second door sealing assembly 400, and is used to press against the middle beam 120 when the cold storage door body 20 is closed.

[0042] In this embodiment, the specific configuration of the first door sealing assembly 200 is optimized. Specifically, the first door sealing assembly 200 is configured as a composite component including at least a first sealing area and a connection area. The first sealing area can be a horizontal U-shaped structure, which can be distributed on the left, top and bottom edges of the first thermal insulation door 110, and is used to abut against the corresponding door frame 11 to improve the sealing performance between the first thermal insulation door 110 and the door frame 11; the connection area can be a straight-line structure, which can be distributed on the right edge of the first thermal insulation door 110, and is arranged between the first thermal insulation door 110 and the middle beam 120 to enhance the connection tightness and sealing of the first thermal insulation door 110 and the middle beam 120.

[0043] Furthermore, the specific configuration of the second door sealing component 400 is optimized. Specifically, the second door sealing component 400 is configured as a composite component including at least a second sealing area and an abutting area. The second sealing area can be a horizontal U-shaped structure, which can be distributed on the right side, top and bottom edges of the second opening and closing component 300, and is used to abut against the corresponding door frame 11 to improve the sealing performance between the second opening and closing component 300 and the door frame 11; the abutting area can be a straight-line structure, which can be distributed on the left edge of the second opening and closing component 300, and can be interference-configured between the free end of the second opening and closing component 300 and the middle beam member 120 in the closed state, so as to enhance the sealing performance between the second opening and closing component 300 and the middle beam member 120.

[0044] In one possible embodiment, the first door seal assembly 200 includes a first door seal 210 and a second door seal 220 that are spaced apart, the first door seal 210 is disposed on the inner side of the second door seal 220, and the first door seal 210 is magnetic; and / or, the second door seal assembly 400 includes a third door seal 410 and a fourth door seal 420 that are spaced apart, the third door seal 410 is disposed on the inner side of the fourth door seal 420, and the third door seal 410 is magnetic.

[0045] In this embodiment, the specific configuration of the first door seal assembly 200 is optimized. Specifically, the first door seal assembly 200 is configured as a composite component including at least a first door seal 210 and a second door seal 220. The first door seal 210 can be an inner square ring structure with magnetism, and can produce a certain magnetic attraction effect with the door frame 11 on the cold storage, further enhancing the sealing performance of the first door seal assembly 200, and preventing the cold air in the cold storage from leaking out and external rainwater from penetrating into the cold storage; the second door seal 220 can be an outer square ring structure without magnetism, and can be a pure mechanical sealing component, which is arranged at intervals on the outer periphery of the first door seal 210, and is used to provide a good pressing force to the first thermal insulation door 110, and enhance the sealing performance. In this way, the heat insulation and rainproof performance of the first opening and closing assembly 100 can be enhanced by the double-layer door seal design.

[0046] In addition, the specific configuration of the second door seal assembly 400 is optimized. Specifically, the second door seal assembly 400 is configured as a composite component including at least a third door seal 410 and a fourth door seal 420. The third door seal 410 can be an inner square ring structure with magnetism, and can produce a certain magnetic attraction effect with the door frame 11 on the cold storage, further enhancing the sealing performance of the second door seal assembly 400, and preventing the cold air in the cold storage from leaking out and external rainwater from penetrating into the cold storage; the fourth door seal 420 can be an outer square ring structure without magnetism, and can be a pure mechanical sealing component, which is arranged at intervals on the outer periphery of the third door seal 410, and is used to provide a good pressing force to the second opening and closing assembly 300, and enhance the sealing performance. In this way, the heat insulation and rainproof performance of the second opening and closing assembly 300 can be enhanced by the double-layer door seal design.

[0047] In one example, in order to prevent the first door seal assembly 200 and the second door seal assembly 400 from causing damage to the door frame 11 and the middle beam 120, a soft rubber layer can be provided on the outer sides of the first door seal 210, the second door seal 220, the third door seal 410 and the fourth door seal 420. In this way, the mechanical protection of the cold storage door body 20 can be enhanced through buffering, and the space of the interference fit can be increased through the flexibility of the soft rubber layer, thereby enhancing the sealing performance of the cold storage door body 20.

[0048] In a possible embodiment, the first opening and closing assembly 100 also includes a first seal 130 and a second seal 140. The first seal 130 is arranged above the middle beam 120 to seal the gap between the top end of the middle beam 120 and the corresponding door frame 11; the second seal 140 is arranged below the middle beam 120 to seal the gap between the bottom end of the middle beam 120 and the corresponding door frame 11.

[0049] In this embodiment, the specific configuration of the first opening and closing component 100 is further optimized. Specifically, the first opening and closing component 100 is configured as a composite component including at least the first thermal insulation door 110, the middle beam 120, the first sealing member 130 and the second sealing member 140. The first sealing member 130 can be a rubber block, which can be connected to the top of the middle beam 120 by means of adhesive, mortise and tenon joints, etc., and is used to form an interference fit between the top of the middle beam 120 and the corresponding door frame 11, thereby enhancing the sealing performance between the top of the middle beam 120 and the corresponding door frame 11. The second sealing member 140 can be a rubber block, which can be the same shape and material as the first sealing member 130, or different. The second sealing member 140 can be connected to the bottom end of the middle beam 120 by means of adhesive, mortise and tenon joints, etc., and is used to form an interference fit between the bottom end of the middle beam 120 and the corresponding door frame 11, thereby enhancing the sealing performance between the bottom end of the middle beam 120 and the corresponding door frame 11. In addition, since the cold storage door body 20 is heavy, the first sealing member 130 and the second sealing member 140 can also prevent the first opening and closing assembly 100 and the second opening and closing assembly 300 from sinking, thereby playing a role in fastening the cold storage door body 20 .

[0050] In a possible embodiment, the first thermal insulation door 110 includes a first inner door shell 111, a first outer door shell 112 and a first cold insulation member 113. The outer side of the first inner door shell 111 is connected to the inner side of the first outer door shell 112 through the first cold insulation member 113. The size of the first inner door shell 111 is smaller than that of the first outer door shell 112 to form a first internal angle between the free ends of the first inner door shell 111 and the first outer door shell 112, and at least part of the center beam member 120 is connected to the first internal angle.

[0051] In this embodiment, the specific configuration of the first thermal insulation door 110 is optimized. Specifically, the first thermal insulation door 110 is configured as a composite component including at least a first inner door shell 111, a first outer door shell 112 and a first cold insulation member 113. The first inner door shell 111 may be a square structure, which is filled with foaming materials such as polyurethane to improve its thermal insulation capacity; the first cold insulation member 113 may be a strip of polyvinyl chloride, which is used to cut off the heat transfer between the first inner door shell 111 and the first outer door shell 112, further reducing the heat transfer performance of the cold storage door body 20; the first outer door shell 112 may be a square structure, which is filled with foaming materials such as polyurethane to improve its thermal insulation capacity. In this way, by setting a double-layer door body, the heat transfer effect of the first thermal insulation door 110 is reduced, and the thermal insulation performance of the first thermal insulation door 110 is enhanced.

[0052] In addition, the size of the first inner door shell 111 is smaller than that of the first outer door shell 112, and its periphery is contained within the periphery of the first outer door shell 112, and a first internal angle is formed between the side wall of the free end of the first inner door shell 111 and the inner wall of the free end of the first outer door shell 112. The first internal angle can be a right angle, and the first internal angle is set toward the accommodating chamber of the cold storage, and can be used to connect at least part of the middle beam 120 to avoid the middle beam 120 being completely exposed to the outside of the first insulation door 110, thereby enhancing the connection tightness between the middle beam 120 and the first insulation door 110, and improving the structural stability and reliability of the first opening and closing assembly 100.

[0053] In a possible embodiment, the first opening and closing assembly 100 also includes a first connecting member 150, a second cold insulation member 160 and a third cold insulation member 170, the first end of the first connecting member 150 is connected to the first inner door shell, the second end of the first connecting member 150 extends out of the first outer door shell 112, the first connecting member 150 and the first inner angle are combined to form a plug-in groove, and the middle beam member 120 is inserted into the plug-in groove; the second cold insulation member 160 is located in the plug-in groove and is arranged between the middle beam member 120 and the first connecting member 150, and the third cold insulation member 170 is arranged on the side of the middle beam member 120 away from the second cold insulation member 160.

[0054] In this embodiment, the specific configuration of the first opening and closing component 100 is further optimized. Specifically, the first opening and closing component 100 is configured as a composite component including at least the first heat-insulating door 110, the middle beam 120, the first sealing component 130, the second sealing component 140, the first connecting component 150, the second cold-insulating component 160 and the third cold-insulating component 170. The first connecting component 150 can be a sheet metal component similar to the number 7, and its short side sheet metal can be welded to the side wall of the free end of the first inner door shell. The outer end of the short side is connected to the long side sheet metal, and the long side sheet metal is arranged at a right angle to the short side sheet metal, and the plane where the long side sheet metal is located is parallel to the plane where the first outer shell door is located, and the outer surface of the long side sheet metal is flush with the surface of the first inner door shell; the inner end of the short side is connected to the folded edge sheet metal, and the folded edge sheet metal can be welded to the inner wall of the first outer shell door, and the folded edge sheet metal is parallel to the long side sheet metal, and the folded edge sheet metal is accommodated in the first outer shell door. In this way, the first connecting member 150 and the first outer shell door can be used to enclose a U-shaped plug-in groove at the first inner corner, and the middle beam member 120 can be plugged into the plug-in groove. The second cold-insulating member 160 can be a strip-shaped structure made of polyvinyl chloride, which is used to block the heat transfer between the first connecting member 150 and the middle beam member 120, further reducing the heat transfer performance of the first opening and closing component 100; the third cold-insulating member 170 is a strip-shaped structure made of polyvinyl chloride, which is used to block the heat transfer between the middle beam member 120 and the free end of the second opening and closing component 300, further reducing the heat transfer performance of the cold storage door body 20.

[0055] In one example, the cross section of the second cold-insulating member 160 can be approximately an X-shaped structure, the lower V end of the X-shaped structure is inserted into the middle beam member 120, and the upper V end is configured by interference fit between the middle beam member 120 and the first connecting member 150. In this way, while enhancing the sealing performance between the middle beam member 120 and the first connecting member 150, the heat transfer performance between the middle beam member 120 and the first connecting member 150 can also be reduced, thereby improving the thermal insulation effect of the first opening and closing component 100. The cross section of the third cold-insulating member 170 can be approximately an X-shaped structure, the upper V end of the X-shaped structure is inserted into the middle beam member 120, and the lower V end is used to be configured by interference fit between the middle beam member 120 and the free end side wall of the second opening and closing component 300. In this way, while enhancing the sealing performance between the middle beam member 120 and the second opening and closing component 300, the heat transfer performance between the middle beam member 120 and the second opening and closing component 300 can also be reduced, thereby improving the thermal insulation effect of the second opening and closing component 300.

[0056] In a possible embodiment, the second opening and closing assembly 300 includes a second insulation door 310 and a lock body 320. The second insulation door 310 is rotatably connected to the second side of the door frame 11. The lock body 320 is arranged at the free end of the second insulation door 310 and is used to lock the second insulation door 310 and the corresponding door frame 11.

[0057] In this embodiment, the specific configuration of the second opening and closing assembly 300 is optimized. Specifically, the second opening and closing assembly 300 is configured as a combined component including at least a second thermal insulation door 310 and a lock body 320. The second thermal insulation door 310 can be a square door body, which can effectively reduce the temperature loss in the cold storage and reduce energy consumption; optionally, the lock body 320 is a sky lock, and the lock body 320 can be set at the free end of the second thermal insulation door 310, and is used to lock the second thermal insulation door 310 on the door frame 11 of the cold storage and close the cold storage door body 20.

[0058] Specifically, if Figure 8As shown, the lock body 320 includes a first tube body 321, a second tube body 322, a third tube body 323 and a lock head 324. The lock head 324 is arranged on the first tube body 321 and divides the first tube body 321 into an upper chamber and a lower chamber. The second tube body 322 is embedded in the upper chamber. The lower end of the second tube body 322 is plugged into the first end of the lock head 324. The upper end of the second tube body 322 is provided with a first lock tongue 3221, and the first lock tongue 3221 extends out of the first tube body 321. The third tube body 323 is embedded in the lower chamber. The upper end of the third tube 323 is plugged into the second end of the lock head 324, and the lower end of the third tube 323 is provided with a second lock tongue 3231, and the second lock tongue 3231 extends out of the first tube 321; the first tube 321 is embedded in the second thermal insulation door 310, and the lock head 324 is exposed from the second thermal insulation door 310, and the extension or retraction of the second tube 322 and the third tube 323 is controlled by the lock head 324 to realize the locking or loosening between the first lock tongue 3221 and the second lock tongue 3231 and the corresponding door frame 11 respectively.

[0059] In this embodiment, the specific configuration of the lock body 320 is optimized. Specifically, the lock body 320 is configured as a composite component including at least a first tube body 321, a second tube body 322, a third tube body 323 and a lock head 324. The first tube body 321 can be a φ34 stainless steel tube, and its axial direction is in the same direction as the height direction of the second thermal insulation door 310. The first tube body 321 can be pre-buried in the free end of the second thermal insulation door 310 in advance to prevent the foaming material from affecting the opening and closing of the lock body 320 after foaming; the second tube body 322 can be a φ26 stainless steel tube. , which is arranged in the upper chamber of the first tube body 321 and can be connected to the first end of the lock head 324 by bolts, the upper end of the second tube body 322 extends out of the first tube body 321, and a first lock tongue 3221 is arranged on it; the third tube body 323 can be a φ26 stainless steel tube, which is arranged in the lower chamber of the first tube body 321 and can be connected to the second end of the lock head 324 by bolts, the lower end of the third tube body 323 extends out of the first tube body 321, and a second lock tongue 3231 is arranged on it. In this way, the second tube body 322 and the third tube body 323 can be retracted simultaneously by rotating the lock head 324 to release the lock between the first lock tongue 3221 and the second lock tongue 3231 and the corresponding door frame 11, and the second opening and closing component 300 can be opened; or the lock head 324 can be rotated in the opposite direction to extend the second tube body 322 and the third tube body 323 at the same time, so as to lock the first lock tongue 3221 and the second lock tongue 3231 and the corresponding door frame 11, and the second opening and closing component 300 can be closed.

[0060] Compared with the traditional lock body structure in which only two movable tube bodies are arranged on the lock head, the lock body 320 provided in the present application is a double-layer sleeve structure. The first tube body 321 arranged on the outer layer can, on the one hand, effectively prevent the foaming material in the second thermal insulation door 310 from entering its interior, and avoid the movable connection between the lock head 324 and the second tube body 322 and the third tube body 323 from being solidified by the foaming material, thereby ensuring that the lock body 320 can be opened and closed normally; on the other hand, the first tube body 321 can provide a relatively sealed working space for the second tube body 322, the third tube body 323 and the lock head 324, thereby improving the reliability of the lock body 320 and improving the sealing of the free end side of the second thermal insulation door 310.

[0061] In a possible embodiment, the second thermal insulation door 310 includes a second inner door shell 311, a second outer door shell 312 and a fourth cold insulation member 313. The outer side of the second inner door shell 311 is connected to the inner side of the second outer door shell 312 through the fourth cold insulation member 313. The size of the second inner door shell 311 is smaller than that of the second outer door shell 312 to form a second inner angle between the free end of the second inner door shell 311 and the free end of the second outer door shell 312. The second inner angle is used to abut the middle beam member 120 extending out of the first thermal insulation door 110.

[0062] In this embodiment, the specific configuration of the second thermal insulation door 310 is optimized. Specifically, the second thermal insulation door 310 is configured as a composite component including at least a second inner door shell 311, a second outer door shell 312 and a fourth cold insulation member 313. The second inner door shell 311 may be a square structure, and its interior is filled with foaming materials such as polyurethane to improve its thermal insulation capacity; the fourth cold insulation member 313 may be a strip of polyvinyl record, which is used to cut off the heat transfer between the second inner door shell 311 and the second outer door shell 312, further reducing the heat transfer performance of the second thermal insulation door 310; the second outer door shell 312 may be a square structure, and its interior is filled with foaming materials such as polyurethane to improve its thermal insulation capacity. In this way, by setting a double-layer door body, the heat transfer effect of the second thermal insulation door 310 is reduced, and the thermal insulation performance of the second thermal insulation door 310 is enhanced.

[0063] In addition, the size of the second inner door shell 311 is smaller than that of the second outer door shell 312, and its periphery is contained within the periphery of the second outer door shell 312, and a second internal angle is formed between the side wall of the free end of the second inner door shell 311 and the inner wall of the free end of the second outer door shell 312. The second internal angle can be a right angle, and the second internal angle is set toward the cold storage. It can be used to abut at least part of the middle beam 120 when closing the cold storage door body 20, thereby achieving locking of the first opening and closing component 100, enhancing the sealing performance of the opening and closing point of the first opening and closing component 100 and the second insulation door 310, and improving the reliability of the cold storage door body 20.

[0064] In addition, if Figure 1 , Fig.10 and Fig.11 As shown, the present application also provides a cold storage, which includes: a storage body 10, having a accommodating chamber, and a door frame 11 connecting the accommodating chamber and the external environment is provided on the storage body 10; and the cold storage door body 20 as described above, which can be opened and closed and installed on the door frame 11; the first opening and closing component 100 of the cold storage door body 20 is rotatably connected to the first side of the door frame 11, and the second opening and closing component 300 of the cold storage door body 20 is rotatably connected to the second side of the door frame 11; the storage body 10 is closed, and the free end of the second opening and closing component 300 is pressed against the middle beam 120 of the first opening and closing component 100 through at least part of the second door sealing component 400, and the remaining part of the first door sealing component 200 and the remaining part of the second door sealing component 400 are jointly abutted against the door frame 11.

[0065] In this embodiment, the cold storage is configured as a combined component including at least a storage body 10 and a cold storage door body 20. The storage body 10 can be a large square box structure, which is hollow inside and can contain a storage chamber for goods; a rectangular door frame 11 is provided on the front side thereof for connecting the outside and the storage chamber. The first opening and closing component 100 of the cold storage door body 20 is rotatably connected to the first side of the door frame 11, and the second opening and closing component 300 is rotatably connected to the second side of the door frame 11. In this way, the cold storage door body 20 can be opened or closed by rotating the second opening and closing component 300. For example, the second opening and closing assembly 300 is rotated and pressed against the middle beam 120, so that the middle beam 120 is subjected to an inward extrusion force, thereby realizing the locking of the second opening and closing assembly 300 and the first opening and closing assembly 100, and closing the cold storage door body 20. At this time, the middle beam 120 is arranged on the inner side of the opening and closing part of the first thermal insulation door 110 and the second opening and closing assembly 300, so as to realize the sealing of the first thermal insulation door 110 and the second opening and closing assembly 300 at the opening and closing part; at the same time, at least part of the first thermal insulation door 110 is provided The first door sealing component 200 is interference-connected at the corresponding door frame 11, and at least a portion of the second door sealing component 400 arranged on the second opening and closing component 300 is interference-connected at the corresponding door frame 11 to achieve sealing between the first opening and closing component 100 and the second opening and closing component 300 and the door frame 11; in addition, at least a portion of the second door sealing component 400 arranged on the inner side wall of the free end of the second opening and closing component 300 is interference-connected on the middle beam member 120 to achieve sealing between the second opening and closing component 300 and the middle beam member 120.

[0066] Alternatively, the second opening and closing assembly 300 is rotated in the reverse direction to release the squeezing of the second opening and closing assembly 300 on the middle beam 120, thereby releasing the lock on the first opening and closing assembly 100 and opening the cold storage door 20. At this time, the second opening and closing assembly 300 rotates in a direction away from the first opening and closing assembly 100, and the cold storage is opened.

[0067] At the same time, the specific structure of the cold storage door 20 refers to the above embodiment. Since the cold storage adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0068] It should be noted that the cold storage door 20 provided in the embodiment of the present application is not limited to cold storage used in the field of food technology, but can also be used in other equipment that requires thermal insulation, such as cold storage used to store cells / tissues / medicines in medical treatment, cold storage used to store pesticides in agriculture, etc., which will not be repeated here.

[0069] In a possible implementation, it also includes a detection control component 30, a refrigeration component and a lighting component. The detection control component 30 is electrically connected to the refrigeration component and the lighting component, respectively. The detection control component 30 is configured to detect whether the second opening and closing component 300 is opened, and when the second opening and closing component 300 is in an open state, control the refrigeration component to operate in an energy-saving manner, and at the same time, control the lighting component to turn on.

[0070] In this embodiment, the cold storage is configured as a combination of a storage body 10, a cold storage door body 20, a detection control component 30, a refrigeration component and a lighting component. The detection control component 30 may include, for example but not limited to, a photoelectric sensor, which can detect whether the second opening and closing component 300 is opened, or the detection control component 30 is an infrared sensor, which detects whether the goods are placed in the storage body 10. The refrigeration component may be a refrigeration unit, which is arranged inside the storage body 10 and is used to provide a low temperature environment for the accommodating chamber. Methods for controlling the energy-saving operation of the refrigeration component include but are not limited to: reducing the air volume of the evaporating fan, or reducing the power of the evaporating fan, etc.

[0071] The lighting component can be a lighting lamp, which is arranged inside the storage body 10 to provide illumination for the user to avoid damaging the goods when taking and placing the goods. The detection control component 30 is electrically connected to the refrigeration component and the lighting component respectively, and when it is detected that the second opening and closing component 300 is opened, the refrigeration component is controlled to operate in an energy-saving manner to reduce the leakage of cold air in the storage body 10 and reduce energy consumption; at the same time, the lighting component is turned on to provide lighting for the user. When it is detected that the second opening and closing component 300 is closed, the refrigeration component is controlled to operate normally to provide sufficient fresh-keeping temperature for the goods, and the lighting component is turned off to reduce energy consumption. In this way, the intelligent control of the cold storage door 20 can be realized, which can prevent the cold air from leaking out of the cold storage door 20 when it is open, avoid the temperature in the storage body 10 from rising rapidly in a short time, and improve the fresh-keeping effect and refrigeration effect of the goods; and reduce the waste of cold sources and improve energy utilization.

[0072] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0073] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0074] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0075] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cold storage door, characterized in that: include: A first opening and closing assembly comprises a first thermal insulation door and a middle beam, wherein the first thermal insulation door is rotatably connected to a first side of the door frame, and the middle beam is connected to a free end of the first thermal insulation door and at least partially extends out of the first thermal insulation door; A first door sealing assembly is provided at least at the periphery of the first thermal insulation door, and the middle beam member covers at least a portion of the first door sealing assembly; A second opening and closing assembly, rotatably connected to a second side of the door frame; as well as The second door sealing assembly is at least arranged on the periphery of the second opening and closing assembly; when the cold storage door body is in a closed state, the free end of the second opening and closing assembly is pressed against the central beam member through at least part of the second door sealing assembly, and the remaining part of the first door sealing assembly and the remaining part of the second door sealing assembly are jointly pressed against the door frame.

2. The cold storage door according to claim 1, characterized in that: The first door sealing assembly comprises a first sealing area and a connecting area, the first sealing area is used to press against a part of the door frame when the cold storage door is closed, and the connecting area is arranged between the first thermal insulation door and the middle beam; and / or, The second door sealing assembly includes a second sealing area and a contact area. The second sealing area is used to press against another part of the door frame when closing the cold storage door body. The contact area is arranged on the free end of the second door sealing assembly and is used to press against the middle beam when closing the cold storage door body.

3. The cold storage door according to claim 1, characterized in that: The first door seal assembly comprises a first door seal and a second door seal arranged at intervals, the first door seal is arranged on the inner side of the second door seal, and the first door seal has magnetism; and / or, The second door seal assembly includes a third door seal and a fourth door seal that are spaced apart from each other. The third door seal is disposed on the inner side of the fourth door seal, and the third door seal has magnetic attraction.

4. The cold storage door according to claim 1, characterized in that: The first opening and closing assembly also includes a first seal and a second seal. The first seal is arranged above the middle beam and is used to seal the gap between the top end of the middle beam and the corresponding door frame; the second seal is arranged below the middle beam and is used to seal the gap between the bottom end of the middle beam and the corresponding door frame.

5. The cold storage door according to claim 1, characterized in that: The first thermal insulation door includes a first inner door shell, a first outer door shell and a first cold insulation member, the outer side of the first inner door shell is connected to the inner side of the first outer door shell through the first cold insulation member, the size of the first inner door shell is smaller than the size of the first outer door shell, so as to form a first internal angle between the free end of the first inner door shell and the free end of the first outer door shell, and at least part of the central beam member is connected to the first internal angle.

6. The cold storage door according to claim 5, characterized in that: The first opening and closing assembly also includes a first connecting member, a second cold insulation member and a third cold insulation member, the first end of the first connecting member is connected to the first inner door shell, the second end of the first connecting member extends out of the first outer door shell, the first connecting member and the first inner angle are combined to form a plug-in groove, and the middle beam member is inserted into the plug-in groove; the second cold insulation member is located in the plug-in groove and is arranged between the middle beam member and the first connecting member, and the third cold insulation member is arranged on a side of the middle beam member away from the second cold insulation member.

7. The cold storage door according to claim 1, characterized in that: The second opening and closing assembly includes a second thermal insulation door and a lock body. The second thermal insulation door is rotatably connected to the second side of the door frame. The lock body is arranged at the free end of the second thermal insulation door and is used to lock the second thermal insulation door and the corresponding door frame.

8. The cold storage door according to claim 7, characterized in that: The lock body includes a first tube body, a second tube body, a third tube body and a lock head, the lock head is arranged on the first tube body and divides the first tube body into an upper chamber and a lower chamber, the second tube body is embedded in the upper chamber, the lower end of the second tube body is plugged into the first end of the lock head, the upper end of the second tube body is provided with a first lock tongue, and the first lock tongue extends out of the first tube body; the third tube body is embedded in the lower chamber, the upper end of the third tube body is plugged into the second end of the lock head, the lower end of the third tube body is provided with a second lock tongue, and the second lock tongue extends out of the first tube body; the first tube body is embedded in the second thermal insulation door, the lock head exposes the second thermal insulation door, and the extension or retraction of the second tube body and the third tube body is controlled by the lock head to realize the locking or loosening of the first lock tongue and the second lock tongue with the corresponding door frame respectively.

9. The cold storage door according to claim 7, characterized in that: The second thermal insulation door includes a second inner door shell, a second outer door shell and a fourth cold insulation component. The outer side of the second inner door shell is connected to the inner side of the second outer door shell through the fourth cold insulation component. The size of the second inner door shell is smaller than that of the second outer door shell to form a second internal angle between the free end of the second inner door shell and the free end of the second outer door shell. The second internal angle is used to abut the middle beam component extending out of the first thermal insulation door.

10. A cold storage, characterized in that: include: A storage body having a containing chamber, wherein a door frame is provided on the storage body; and The cold storage door body as described in any one of claims 1 to 9 can be installed on the door frame in an openable and closable manner.

11. The cold storage according to claim 10, characterized in that: It also includes a detection control component, a refrigeration component and a lighting component. The detection control component is electrically connected to the refrigeration component and the lighting component, respectively. The detection control component is configured to detect whether the second opening and closing component is opened, and when the second opening and closing component is in an open state, control the energy-saving operation of the refrigeration component and the turning on of the lighting component.

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