Refrigeration appliance

Abstract

The application provides a refrigeration equipment, which comprises a cabinet and a door body. The door body comprises a door shell, a door liner, a first end cover, a second end cover and a limiting assembly. The door liner is arranged on the side of the door shell facing the storage compartment. The door liner and the door shell are connected. The first end cover is connected with the end of the door shell and the end of the door liner respectively. The first end cover is arranged on one side of the door body along the height direction. The second end cover is connected with the end of the door shell and the end of the door liner respectively. The second end cover is arranged on one side of the door body along the height direction. At least one of the first end cover and the second end cover is configured to comprise at least two segmented structures. Each segmented structure is detachably connected along the width direction of the door body to jointly form the first end cover or the second end cover. The limiting assembly is correspondingly arranged between any two adjacent segmented structures in the same end cover. The limiting assembly is configured to limit the relative movement of the two adjacent segmented structures. The deformation amount of the end cover is reduced by arranging the segmented structures.

Description

Technical Field

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

[0002] Refrigeration equipment includes a cabinet and a door. The cabinet forms a storage compartment. As the demand for storage compartment volume increases, the thickness of the foam layer in the door becomes thinner. During the use of refrigeration equipment such as refrigerators and freezers, the temperature difference between the inner liner and the external environment is large. This results in the foam layer on one side of the inner liner having a lower temperature and the foam layer closer to the external environment having a higher temperature. Due to the principle of thermal expansion and contraction, the deformation of the foam layer from the inside to the outside is different, which leads to deformation of the door or cabinet. The deformed door will cause cold leakage.

[0003] In related technologies, the strength of the door or cabinet is improved by installing reinforcing iron in the foam layer or by setting reinforcing ribs on the door liner. However, this solution increases the weight of the door, requiring the door seal or hinges to be redesigned, thus increasing design costs.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] This application addresses, to at least some extent, one of the technical problems in the related art.

[0006] Therefore, this application aims to provide a refrigeration device whose door body includes a first end cover and a second end cover. By setting at least one of the first end cover and the second end cover as a multi-segment structure, the overall contraction force of the first end cover or the second end cover is cut off, the load is discontinuous, and the corresponding deformation amount is reduced, thereby improving the deformation problem of the door body.

[0007] In a first aspect, embodiments of this application propose a refrigeration device, which includes a cabinet and a door. The cabinet has a storage compartment and an opening communicating with the storage compartment. The door is rotatably connected to the cabinet to open or close the opening.

[0008] The door body includes a door shell, a door inner liner, a first end cap, and a second end cap. The door inner liner is located on the side of the door shell facing the storage room and is connected to the door shell. The first end cap is connected to the end of the door shell and the end of the door inner liner respectively and is located on one side of the door body along the height direction. The second end cap is connected to the end of the door shell and the end of the door inner liner respectively and is located on one side of the door body along the height direction. The door shell, door inner liner, first end cap, and second end cap together form a foaming cavity, which is filled with a foaming layer.

[0009] At least one of the first end cap and the second end cap is configured to include at least two segmented structures, each segmented structure being detachably connected along the width direction of the door body to jointly form the first end cap or the second end cap.

[0010] The door also includes a limiting component, which is disposed between any two adjacent segment structures in the same end cover. The limiting component is configured to restrict relative movement between the two adjacent segment structures.

[0011] By setting at least one of the first end cap and the second end cap to adopt at least two segmented structures, and the segmented structures can be disassembled and spliced ​​along the width direction of the door body, this design breaks the one-piece structure of the complete end cap in the related technology, and cuts the overall contraction force (or expansion force) generated by the end cap during thermal expansion and contraction into multiple segmented independent small loads.

[0012] The segmented end caps utilize segmented cutting stress to allow each segment to make minute adaptive adjustments as the foam layer expands / contracts locally. The splicing gaps between segments can buffer the stress difference between the foam layer and the end cap, reducing the interaction force and avoiding hard deformation caused by differences in material properties.

[0013] In some embodiments, two adjacent segmented structures are defined as a first segmented structure and a second segmented structure, and the limiting component includes a first limiting part and a second limiting part. The first limiting part is disposed on the side of the first segmented structure close to the second segmented structure, and the first limiting part is configured such that at least part of the structure extends upward or downward along the height direction of the door.

[0014] The second limiting part is formed on the side wall of the second segment structure near the first segment structure. The second limiting part is configured as a through hole that extends along the depth direction of the door and penetrates the side end face of the second segment structure.

[0015] The second limiting part is configured in conjunction with the first limiting part, with the first limiting part inserted into the second limiting part to restrict the movement of the first segment structure and the second segment structure in the height direction of the door body.

[0016] In the above embodiments, at least a portion of the structure of the first limiting part extends upward or downward along the height direction of the door. This design makes the first limiting part a height positioning reference for the side of the first segment structure close to the second segment structure. When the segment structure has an upward or downward offset tendency due to thermal expansion and contraction or door vibration, the extended protruding structure can directly form a hard contact block with the inner wall of the through hole of the second limiting part, preventing the first segment structure from tilting upward or sinking downward relative to the second segment structure.

[0017] In some embodiments, the limiting component further includes a third limiting portion and a fourth limiting portion, wherein the third limiting portion is disposed on the side of the first segment structure close to the second segment structure, and the third limiting portion is configured such that at least a portion of the structure extends along the depth direction of the door toward the direction close to or away from the storage room.

[0018] The fourth limiting part is formed on the side wall of the second segment structure near the first segment structure. The fourth limiting part is configured as a through hole that extends along the height direction of the door and penetrates the side end face of the second segment structure.

[0019] The third and fourth limiting parts are configured in conjunction, with the third limiting part inserted into the fourth limiting part to restrict the movement of the first segment structure and the second segment structure in the depth direction of the door body.

[0020] In the above embodiments, at least a portion of the structure of the second limiting part extends along the depth direction of the door towards the storage room or away from the storage room. This design makes the second limiting part a depth direction positioning reference for the side of the first segment structure near the second segment structure. When the segment structure has an upward or downward displacement tendency due to thermal expansion and contraction or door vibration, the extended protruding structure can directly form a hard contact block with the inner wall of the through hole of the fourth limiting part, preventing the first segment structure from moving towards or away from the storage room relative to the second segment structure.

[0021] In some embodiments, the first limiting part includes a first connector and a first limiting member. The first connector is connected to the side of the first segment structure near the second segment structure. The first limiting member is disposed on the side of the first connector along the height direction of the door body.

[0022] The first limiting member includes a first mounting surface and a first abutting surface, wherein the first mounting surface is configured to be close to the end face of the second segment structure, and the first abutting surface is configured to be away from the end face of the second segment structure; after the first segment structure and the second segment structure are connected, the first abutting surface and the side end face of the second segment structure close to the first segment structure abut against each other.

[0023] By setting the first mounting surface and the end faces of the second segment structure to fit together, a guiding and positioning function is achieved. The first abutting surface and the side end faces of the second segment structure contact each other to achieve limiting along the height direction of the door body. This allows for precise control of the relative position of the segment structures in the height direction, improving the assembly accuracy and connection stability of the overall door structure.

[0024] In some embodiments, the first limiting member is disposed at the top of the first connector along the height direction of the door body, and the first mounting surface is configured to be inclined upward from the side closer to the second segment structure toward the side farther from the second segment structure.

[0025] The first mounting surface is inclined, which guides the contact between the first and second segment structures during assembly, making alignment easier and improving assembly efficiency.

[0026] In some embodiments, the third limiting portion includes a second connector and a second limiting member, the second connector being connected to the side of the first segment structure near the second segment structure; the second limiting member is configured to extend from the end of the second connector away from the first segment structure along the depth direction of the door toward the direction away from or toward the storage room.

[0027] By using the second connector as a connecting component, the first segment structure and the second segment structure are physically connected; the second limiting component plays an auxiliary supporting and guiding role, ensuring that the two segment structures maintain their relative positional relationship during movement, thereby improving the connection strength and stability between the segment structures.

[0028] In some embodiments, the cross-section of the second connector gradually decreases from the direction away from the second segment structure to the direction closer to the second segment structure.

[0029] The gradually decreasing cross-section design helps guide the connector to maintain a stable trajectory during movement; the smaller cross-section on the side closer to the segmented structure can reduce frictional resistance and improve the smoothness and responsiveness of the movement; at the same time, the larger cross-section can provide sufficient rigid support to prevent the connector from deforming or shifting during movement.

[0030] In some embodiments, the door body further includes a reinforcing rib, which is disposed on the side of the first end cover near the second end cover, and / or on the side of the second end cover near the first end cover.

[0031] By setting reinforcing ribs on the first or second end cap, the load-bearing capacity of the end cap is improved when it is subjected to force. When the door is subjected to external force, the reinforcing ribs can disperse the stress and prevent local deformation or breakage.

[0032] In some embodiments, the first end cap is configured as a three-segment structure, with the three segments arranged sequentially along the width direction of the door. By dividing the first end cap into three segments, the overall contraction force of the first end cap is divided into three small segments of contraction force, resulting in discontinuous load and correspondingly smaller deformation, thereby improving the problem of thermal deformation of the first end cap.

[0033] In some embodiments, the second end cap is configured as a three-segment structure, with the three segment structures arranged sequentially along the width direction of the door.

[0034] By dividing the second end cap into three segments, the overall shrinkage force of the first end cap is divided into three small segments, resulting in discontinuous load and smaller deformation, thus improving the thermal deformation problem of the second end cap. Attached Figure Description

[0035] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0036] Figure 1 This is a schematic diagram of the structure of the refrigeration equipment in the embodiments of this application;

[0037] Figure 2 This is a schematic diagram of the structure of a door in related technologies;

[0038] Figure 3 This is a schematic diagram illustrating the simulation results of a low-temperature placement test of a door in a related technology.

[0039] Figure 4 This is a schematic diagram of the door structure in an embodiment of this application;

[0040] Figure 5 This is a structural schematic diagram of the door from another perspective in an embodiment of this application;

[0041] Figure 6 This is an exploded view of the door body in an embodiment of this application;

[0042] Figure 7 This is a schematic diagram of the structure of the first end cap in an embodiment of this application;

[0043] Figure 8 for Figure 7 A magnified view of position A in the middle;

[0044] Figure 9 This is an exploded view of the first end cap in an embodiment of this application;

[0045] Figure 10 for Figure 9 A magnified view of position B in the middle;

[0046] Figure 11 for Figure 9 A magnified view of position A in the middle;

[0047] Figure 12 This is another exploded view of the first end cap in the embodiments of this application;

[0048] Figure 13 for Figure 12 A magnified view of position A in the middle;

[0049] Figure 14 This is a schematic diagram of the simulation results of the low-temperature placement test of the door body in the embodiments of this application.

[0050] The attached figures are labeled as follows:

[0051] 1-Box body; 11-Storage compartment; 12-Opening; 2-Door body; 21-Door outer shell; 22-Door inner liner;

[0052] 23-First end cap; 24-Second end cap; 25-Limiting component;

[0053] 261 - First segment structure; 262 - Second segment structure;

[0054] 251 - First limiting part; 252 - Second limiting part; 253 - Third limiting part; 254 - Fourth limiting part;

[0055] 2511 - First connector; 2512 - First limiting member; 2513 - First mounting surface; 2514 - First abutment surface;

[0056] 2531 - Second connector; 2532 - Second limiting member; 2533 - Second mounting surface; 2534 - Second abutment surface;

[0057] 27-Reinforcing rib; 231-First sub-segment; 232-Second sub-segment; 233-Third sub-segment;

[0058] 241 - Fourth sub-segment; 242 - Fifth sub-segment; 243 - Sixth sub-segment. Detailed Implementation

[0059] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0060] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0061] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0062] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0063] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0065] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the scope of protection of this application.

[0066] This application provides a refrigeration device, which may include refrigerators, freezers, wine cabinets, commercial refrigerated / frozen display cases, etc. Based on the teachings of this application, those skilled in the art can adapt the technical solutions of this application to other refrigeration devices, and all such applications should be included within the protection scope of this application.

[0067] The refrigeration equipment provided in this application embodiment can have various implementation methods, such as a double-door refrigeration equipment, a single-door refrigeration equipment, etc.

[0068] This application provides a refrigeration device, referring to... Figure 1As shown, the refrigeration equipment includes a housing 1. The housing 1 includes an outer shell defining a receiving cavity, an inner liner disposed in the receiving cavity, and an insulation layer disposed between the inner liner and the outer shell to insulate the storage compartment 11. The inner liner defines at least one storage compartment 11.

[0069] The inner liner is also defined to have an opening 12 that communicates with the storage compartment 11, so as to place food into or take food out of the storage compartment 11.

[0070] Storage compartment 11 can be set as one, and can be set as a refrigerator compartment or a freezer compartment.

[0071] The storage room 11 can be configured as two, defined as a first storage room and a second storage room. The first storage room is a refrigerated room, and it is equipped with at least one shelf, dividing the first storage room into multiple refrigerated storage spaces. A refrigerated drawer is provided in at least one refrigerated storage space for easy access to refrigerated items by the user.

[0072] The second storage room is set up as a freezer room. At least one shelf is provided in the second storage room to divide the second storage room into multiple freezer storage spaces. A freezer drawer is provided in at least one freezer storage space for storing frozen items for easy access by the user.

[0073] For example, the second storage room is located below the first storage room.

[0074] In addition, there are no restrictions on the shape and size of the box 1. The box 1 can be set as a cuboid box 1.

[0075] In addition, the modes of refrigeration equipment to achieve refrigeration include, but are not limited to, direct cooling refrigeration, air cooling refrigeration, and hybrid cooling (direct cooling and air cooling). This embodiment mainly uses air cooling refrigeration as an example. Optionally, the refrigeration equipment is equipped with a refrigeration system and an air duct system. The refrigeration system is used to generate cold air, and the air duct system can transport the cold air generated by the refrigeration system to the freezer compartment and the refrigerator compartment of the refrigeration equipment to achieve the purpose of refrigeration in the refrigerator compartment and freezing in the freezer compartment.

[0076] A refrigeration system includes a compressor, condenser, throttling device, evaporator, and fan. The compressor, condenser, throttling device, and evaporator are connected by piping to form a refrigerant circulation loop. The compressor and throttling device are generally located at the bottom of the refrigeration equipment. The refrigeration system executes the refrigeration cycle of the refrigeration equipment by using the compressor, condenser, throttling device, and evaporator. The refrigeration cycle involves a series of processes, including compression, condensation, throttling cooling, and evaporation, to cool the air inside the refrigeration equipment.

[0077] The refrigeration equipment includes a door 2, which can be connected to a housing 1. The opening 12 is opened or closed by rotating the door 2. In some embodiments, the door 2 and the housing 1 are connected by a hinge.

[0078] Reference Figure 2 As shown, the door body 2 includes a door shell 21. The door shell 21 includes a front panel made of metal or glass panels and a galvanized steel frame.

[0079] The door body 2 includes an inner liner 22, which is located on the side of the outer door shell 21 facing the storage compartment 11, and the inner liner 22 is connected to the outer door shell 21. The inner liner 22 is a HIPS (High Impact Polystyrene) co-extruded board liner.

[0080] The HIPS co-extruded board liner is a multi-layered functional board made of HIPS (high-impact polystyrene) as the base material and processed by "co-extrusion molding process". After cutting, vacuum forming or injection molding, it forms the door liner 22. Its core function is to serve as the inner wall of the storage compartment, directly contacting food, beverages and other stored items. At the same time, it works with the door shell 21, the first end cap 23 and the second end cap 24 to form a foam cavity, providing a closed inner support surface for the foam layer.

[0081] The door body 2 also includes a first end cap 23, which is disposed on one side of the door body 2 along the height direction. The first end cap 23 is connected to the end of the door outer shell 21 and the end of the door inner liner 22 respectively.

[0082] The door body 2 also includes a second end cap 24, which is disposed on the other side of the door body 2 along the height direction. The second end cap 24 is connected to the end of the door outer shell 21 and the end of the door inner liner 22. The first end cap 23 and the second end cap 24 are made of ABS (Acrylonitrile Butadiene Styrene) material.

[0083] The outer shell 21, the inner liner 22, the first end cap 23, and the second end cap 24 together form a foaming cavity, which is filled with a foaming layer for heat preservation.

[0084] In the above, the first end cap 23 and the second end cap 24 are both set as a whole. As the storage room 11 of the refrigeration equipment requires a high volume ratio, the thickness of the foam layer of the door body 2 becomes thinner and thinner, and the bending stiffness of the door body 2 decreases as the thickness decreases.

[0085] Furthermore, the width and height of door body 2 are relatively small, and the overall shape of door body 2 is somewhat square. The side frames of door body 2 have high bending stiffness to resist deformation, while the first end cap 23 and the second end cap 24 have high expansion coefficients of ABS (116.53 μm / (m·℃)), resulting in large contraction forces. This leads to significant deformation of the first end cap 23 and the second end cap 24 of door body 2, while the deformation of the left and right frames is relatively small. (Refer to...) Figure 2 As shown.

[0086] Figure 3 The simulation results are for the low-temperature placement test of door body 2. The simulation experimental conditions are from 30℃ to -10℃. Figure 3 It can be seen that the deformation of the left and right sides of the door 2 is not obvious. The deformation of the first end cover 23 is 4.2mm and the deformation of the second end cover 24 is 4.3mm. It can be seen that the deformation of the first end cover 23 and the second end cover 24 is relatively large.

[0087] Based on the above, this application proposes a refrigeration device that, by setting at least one of the first end cover 23 and the second end cover 24 as a multi-segment structure, cuts off the overall contraction force of the first end cover 23 or the second end cover 24, resulting in discontinuous load and a smaller deformation, thereby improving the deformation problem of the door body 2.

[0088] Reference Figure 4 , Figure 5 , Figure 6 As shown, at least one of the first end cap 23 and the second end cap 24 is constructed to include at least two segmented structures, each segmented structure being detachably connected along the width direction of the door body 2 to jointly form the first end cap 23 or the second end cap 24.

[0089] In some embodiments, refer to Figure 6 As shown, the first end cap 23 is configured as a three-segment structure, and the three segment structures are arranged sequentially along the width direction of the door body 2.

[0090] The first end cap 23 includes a first sub-segment 231, a second sub-segment 232, and a third sub-segment 233 connected in sequence. By dividing the first end cap 23 into three segmented structures, the overall contraction force stage of the first end cap 23 is three small segments of contraction force, the load is discontinuous, and the corresponding deformation will be smaller, thereby improving the problem of thermal deformation of the first end cap 23.

[0091] In this embodiment, the first end cover 23 is divided into three segments. Alternatively, the first end cover 23 can be divided into two segments, four segments, five segments, etc. This embodiment does not limit the number of segments in the first end cover 23. It is only necessary to be able to cut off the contraction force and to connect multiple segments sequentially along the width direction of the door to form the entire first end cover 23.

[0092] In some embodiments, the second end cap 24 is configured as three segmented structures, which are arranged sequentially along the width direction of the door body 2.

[0093] The second end cap 24 includes a fourth sub-segment 241, a fifth sub-segment 242, and a sixth sub-segment 243 connected sequentially. By dividing the second end cap 24 into three segmented structures, the overall contraction force of the first end cap 23 is divided into three small segments of contraction force, resulting in discontinuous load and correspondingly smaller deformation, thereby improving the thermal deformation problem of the second end cap 24. In this embodiment, the second end cap 24 is divided into three segmented structures. It can also be divided into two, four, or five segmented structures, etc. This embodiment does not limit the number of segments in the second end cap 24, as long as it can cut off the contraction force and multiple segmented structures are connected sequentially along the width direction of the door to form the entire second end cap 24.

[0094] Reference Figure 7 As shown, the door body 2 also includes a limiting component, which is correspondingly disposed between any two adjacent segment structures in the same end cover. The limiting component is configured to restrict the relative movement of the two adjacent segment structures.

[0095] By setting at least one of the first end cap 23 and the second end cap 24 to adopt at least two segmented structures, and the segmented structures can be disassembled and spliced ​​along the width direction of the door body 2, this design breaks the one-piece structure of the complete end cap in the related technology, and cuts the overall contraction force (or expansion force) generated by the end cap during thermal expansion and contraction into multiple segmented independent small loads.

[0096] The segmented end caps utilize segmented cutting stress to allow each segment to make minute adaptive adjustments as the foam layer expands / contracts locally. The splicing gaps between segments can buffer the stress difference between the foam layer and the end cap, reducing the interaction force and avoiding hard deformation caused by differences in material properties.

[0097] In some implementations, the foam material of the foam layer is prevented from overflowing by adhesive or foam plugging between the two segmented structures.

[0098] In some embodiments, refer to Figure 7 , Figure 8 As shown, two adjacent segmented structures are defined as the first segmented structure 261 and the second segmented structure 262.

[0099] It should be noted that the diagram is for illustrative purposes only. Alternatively, the middle segment structure can be defined as the first segment structure 261, and the left-side segment structure as the second segment structure 262. Or, the middle segment structure can be defined as the second segment structure 262, and the left-side segment structure as the first segment structure 261. Or, the middle segment structure can be defined as the first segment structure 261, and the right-side segment structure as the second segment structure 262.

[0100] Reference Figure 8 As shown, the limiting component includes a first limiting part 251. The first limiting part 251 is disposed on the side of the first segment structure 261 near the second segment structure 262, and the first limiting part 251 is configured such that at least a portion of the structure extends upward or downward along the height direction of the door body 2.

[0101] Reference Figure 9 , Figure 11 As shown, the limiting component includes a second limiting portion 252. The second limiting portion 252 is formed on a side wall of the second segment structure 262 near the first segment structure 261. The second limiting portion 252 is configured to extend along the depth direction of the door body 2 and penetrate a through hole in the side end face of the second segment structure 262.

[0102] Reference Figure 8 As shown, the second limiting part 252 and the first limiting part 251 are configured to cooperate, and the first limiting part 251 and the second limiting part 252 are snap-fitted together. The first limiting part 251 is inserted into the second limiting part 252 to restrict the movement of the first segment structure 261 and the second segment structure 262 in the height direction of the door body 2.

[0103] In the above embodiments, at least a portion of the structure of the first limiting part 251 extends upward or downward along the height direction of the door body 2. This design makes the first limiting part 251 serve as a height direction positioning reference for the first segment structure 261 on the side close to the second segment structure 262. When the segment structure tends to shift upward or downward due to thermal expansion and contraction or vibration of the door body 2, the extended protruding structure can directly form a hard contact block with the inner wall of the through hole of the second limiting part 252, preventing the first segment structure 261 from tilting upward or sinking downward relative to the second segment structure 262.

[0104] In some embodiments, refer to Figure 13 As shown, the first limiting part 251 includes a first connecting member 2511. The first connecting member 2511 is connected to the side of the first segment structure 261 near the second segment structure 262.

[0105] The first limiting part 251 includes a first limiting member 2512. The first limiting member 2512 is disposed on one side of the first connecting member 2511 along the height direction of the door body 2.

[0106] Reference Figure 10 As shown, the first limiting member 2512 includes a first mounting surface 2513. The first mounting surface 2513 is configured to be close to the end face of the second segment structure 262.

[0107] The first limiting member 2512 includes a first abutting surface 2514, which is configured as an end face away from the second segment structure 262.

[0108] Reference Figure 10 As shown, the lower part of the first abutment surface 2514 is set as a vertical surface, and the upper part of the first abutment surface 2514 is set as an inclined surface, with the inclined surface facing the direction close to the first segment structure 261.

[0109] After the first segment structure 261 and the second segment structure 262 are connected, the first abutting surface 2514 and the second segment structure 262 abut against the side end face of the first segment structure 261.

[0110] By setting the first mounting surface 2513 and the end face of the second segment structure 262 to fit together, a guiding and positioning function is achieved. The first abutting surface 2514 and the side end face of the second segment structure 262 contact each other to achieve limiting along the height direction of the door body 2. The relative position between the segment structures in the height direction can be precisely controlled, which improves the assembly accuracy and connection stability of the overall structure of the door body 2.

[0111] By setting the first limiting member 2512, the relative position between the first segment structure 261 and the second segment structure 262 along the width direction of the door body 2 can be restricted, thereby improving the stability of the connection between the first segment structure 261 and the second segment structure 262.

[0112] In some embodiments, refer to Figure 10 As shown, the first limiting member 2512 is disposed on the top of the first connecting member 2511 along the height direction of the door body 2, and the first mounting surface 2513 is configured to be inclined upward from the side close to the second segment structure 262 toward the side away from the second segment structure 262.

[0113] The first mounting surface 2513 is inclined, which guides the contact between the first segment structure 261 and the second segment structure 262 during assembly, making it easier to align and improving assembly efficiency.

[0114] Reference Figure 8 As shown, the limiting component includes a third limiting portion 253. The third limiting portion 253 is disposed on the side of the first segment structure 261 near the second segment structure 262, and is configured such that at least a portion of the third limiting portion 253 extends along the depth direction of the door body 2 toward or away from the storage compartment 11. In some embodiments, refer to... Figure 11 As shown, the limiting component also includes a fourth limiting part 254, wherein the fourth limiting part 254 is formed on the side wall of the second segment structure 262 near the first segment structure 261, and the fourth limiting part 254 is configured as a through hole extending along the height direction of the door body 2 and penetrating the side end face of the second segment structure 262.

[0115] Reference Figure 8 As shown, the third limiting part 253 and the fourth limiting part 254 are configured to cooperate and are snap-fitted together. The third limiting part 253 is inserted into the fourth limiting part 254 to restrict the movement of the first segment structure 261 and the second segment structure 262 in the depth direction of the door body 2.

[0116] In the above embodiment, at least a portion of the structure of the second limiting part 252 extends along the depth direction of the door body 2 toward the storage room 11 or away from the storage room 11. This design makes the second limiting part 252 serve as a depth direction positioning reference for the side of the first segment structure 261 near the second segment structure 262. When the segment structure has a tendency to shift up and down due to thermal expansion and contraction or vibration of the door body 2, the extended protruding structure can directly form a hard contact block with the inner wall of the through hole of the fourth limiting part 254, preventing the first segment structure 261 from moving toward or away from the storage room 11 relative to the second segment structure 262.

[0117] In some embodiments, refer to Figure 12 , Figure 13 As shown, the third limiting part 253 includes a second connector 2531, which is connected to the side of the first segment structure 261 near the second segment structure 262.

[0118] The third limiting part 253 includes a second limiting member 2532. The second limiting member 2532 is configured to extend from one end of the second connector 2531 away from the first segment structure 261 along the depth direction of the door body 2 toward a direction away from or close to the storage room 11.

[0119] Reference Figure 13 As shown, the second limiting part 252 is configured to extend from the end of the second connector 2531 away from the first segment structure 261 along the depth direction of the door body 2 toward the direction away from the storage room 11.

[0120] Reference Figure 13 As shown, the second limiting part 252 includes a second mounting surface 2533. The second mounting surface 2533 is configured to be positioned close to the storage compartment 11. The second mounting surface 2533 is configured as an arc-shaped surface.

[0121] The second limiting part 252 includes a second abutting surface 2534. The second abutting surface 2534 is configured to be arranged in a direction away from the storage room 11. The second abutting surface 2534 is configured as an inclined surface, which is arranged from the second segment structure 262 toward the first segment structure 261 toward the storage room 11.

[0122] After the first segment structure 261 and the second segment structure 262 are connected, the second abutting surface 2534 and the side end face of the second segment structure 262 near the first segment structure 261 abut against each other. Specifically, a portion of the second abutting surface 2534 abuts against the edge of the through hole of the fourth limiting portion 254.

[0123] The first segment structure 261 and the second segment structure 262 are physically connected by using the second connector 2531 as a connecting component. The second limiting member 2532 serves as an auxiliary support and guide, ensuring that the two segment structures maintain their relative positional relationship during movement, thereby improving the connection strength and stability between the segment structures.

[0124] In some embodiments, refer to Figure 13 As shown, the cross-section of the second connector 2531 gradually decreases from the direction away from the second segment structure 262 to the direction closer to the second segment structure 262.

[0125] The gradually decreasing cross-section design helps guide the second connector 2531 to maintain a stable trajectory during movement; the smaller cross-section on the side closer to the segmented structure can reduce frictional resistance and improve the smoothness and responsiveness of the movement; at the same time, the larger cross-section can provide sufficient rigid support to prevent the second connector 2531 from deforming or shifting during movement.

[0126] In some embodiments, the door body 2 further includes a reinforcing rib 27, which is disposed on the side of the first end cover 23 near the second end cover 24, and / or on the side of the second end cover 24 near the first end cover 23.

[0127] By providing reinforcing ribs 27 on the first end cap 23 or the second end cap 24, the load-bearing capacity of the end cap is improved when it is subjected to force. When the door body 2 is subjected to external force, the reinforcing ribs 27 can disperse the stress and prevent local deformation or breakage.

[0128] Figure 14 The image shows the simulation results of a low-temperature placement test of the door body 2 when the first end cap 23 and the second end cap 24 are divided into three segments. The simulation conditions were from 30℃ to -10℃. At this temperature, the left and right side frames showed slight deformation (0.1mm), the first end cap 23 deformed by 2.9mm, and the second end cap 24 deformed by 3mm.

[0129] Compared to Figure 3 The simulation results of the low-temperature placement test of the door body 2 in the related technology of this application show that, under the same conditions, the deformation of the first end cover 23 and the second end cover 24 is improved by 30%, the deformation is effectively reduced, and the deformation of the left and right side frames is not affected by it, and the deformation is small.

[0130] From a performance perspective, methods to suppress the thermal deformation of the door body 2 mainly include two aspects: firstly, improving the bending stiffness of the structural components to resist thermal deformation; and secondly, reducing the contraction or expansion loads that cause thermal deformation. The above technical solution uses the method of reducing the contraction or expansion force of the end caps of the door body 2 to suppress the amount of thermal deformation of the door body 2.

[0131] In some implementations, by improving the materials of the first end cap 23 and the second end cap 24, replacing the ABS material with PC material, the contraction or expansion force on one side of the end cap is reduced.

[0132] It is important to know that the material properties of ABS are: elastic modulus of 1900 MPa and coefficient of thermal expansion of 116.53 μm / (m·℃), while the material properties of PC are: elastic modulus of 2500 MPa and coefficient of thermal expansion of 80 μm / (m·℃).

[0133] When structures are similar, the contraction or expansion force of a structure is mainly affected by its coefficient of expansion. PC has a smaller coefficient of expansion than ABS. In addition, PC material has a larger elastic modulus, and the first end cap 23 or the second end cap 24 itself has a higher bending stiffness to resist thermal deformation.

[0134] This application proposes a refrigeration device, which includes a slightly square door 2 with a small width-to-height ratio. The door 2 includes a door shell 21, a door liner 22, a first end cap 23, and a second end cap 24. At least one of the first end cap 23 and the second end cap 24 is constructed to include at least two segmented structures. By dividing the overall structure of the end cap into a split-type combination design, and by absorbing the thermal expansion and contraction stress through adjustable connectors, the overall contraction force of the first end cap 23 or the second end cap 24 is cut off into independent contraction forces of the three-segmented structure, so that the load is discontinuously distributed, and the deformation of the corresponding end cap is reduced accordingly, thereby improving the thermal deformation displacement problem of the first end cap 23 or the second end cap 24.

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0136] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the above embodiments and various different variations of embodiments suitable for specific application considerations.

Claims

1. A refrigeration device, characterized in that, include: The box (1) has a storage room (11) inside and an opening (12) communicating with the storage room; A door (2) is rotatably connected to the housing (1) to open or close the opening (12), the door (2) comprising: Door shell (21); The door liner (22) is disposed on the side of the door shell (21) facing the storage room (11), and the door liner (22) and the door shell (21) are connected; The first end cap (23) is provided on one side of the door body (2) along the height direction. The first end cap (23) is connected to the end of the door shell (21) and the end of the door inner liner (22) respectively. The second end cap (24) is located on the other side of the door body (2) along the height direction. The second end cap (24) is connected to the end of the door shell (21) and the end of the door inner liner (22) respectively. The door shell (21), the door inner liner (22), the first end cap (23) and the second end cap (24) together form a foaming cavity, which is filled with a foaming layer. At least one of the first end cap (23) and the second end cap (24) is configured to include at least two segmented structures, each of which is detachably connected along the width direction of the door body (2) to jointly form the first end cap or the second end cap. A limiting component is provided between any two adjacent segmented structures in the same end cap, and the limiting component is configured to restrict relative movement between the two adjacent segmented structures.

2. The refrigeration equipment according to claim 1, characterized in that, Two adjacent segmented structures are defined as a first segmented structure (261) and a second segmented structure (262), respectively. The limiting component includes: The first limiting part (251) is provided on the side of the first segment structure (261) close to the second segment structure (262), and the first limiting part (251) is configured such that at least part of the structure extends upward or downward along the height direction of the door body (2). The second limiting part (252) is formed on the side wall of the second segment structure (262) near the first segment structure (261). The second limiting part (252) is configured to extend along the depth direction of the door body (2) and penetrate through the side end face of the second segment structure (262). The second limiting part (252) and the first limiting part (251) are configured to cooperate, and the first limiting part (251) is inserted into the second limiting part (252) to restrict the first segment structure (261) and the second segment structure (262) from moving in the height direction of the door body (2).

3. The refrigeration equipment according to claim 2, characterized in that, The first limiting part (251) includes: The first connector (2511) is connected to the side of the first segment structure (261) that is closer to the second segment structure (262); A first limiting member (2512) is disposed on one side of the first connecting member (2511) along the height direction of the door body (2), and the first limiting member (2512) includes: The first mounting surface (2513) is configured to be close to the end face of the second segment structure (262). The first abutting surface (2514) is configured to be an end face away from the second segment structure (262); after the first segment structure (261) and the second segment structure (262) are connected, the first abutting surface (2514) and the second segment structure (262) abut against the side end face of the first segment structure (261).

4. The refrigeration equipment according to claim 3, characterized in that, The first limiting member (2512) is disposed at the top of the first connecting member (2511) along the height direction of the door body (2), and the first mounting surface (2513) is configured to be inclined upward from the side close to the second segment structure (262) to the side away from the second segment structure (262).

5. The refrigeration equipment according to any one of claims 2-4, characterized in that, The limiting component also includes: The third limiting part (253) is provided on the side of the first segment structure (261) close to the second segment structure (262), and the third limiting part (253) is configured such that at least a portion of the structure extends toward the depth direction of the door body (2). A fourth limiting part (254) is formed on the side wall of the second segment structure (262) near the first segment structure (261). The fourth limiting part (254) is configured as a through hole extending along the height direction of the door body (2) and penetrating the side end face of the second segment structure (262). The third limiting part (253) and the fourth limiting part (254) are configured to cooperate, with the third limiting part (253) inserted into the fourth limiting part (254) to restrict the first segmented structure (261) and the second segmented structure (262) from moving in the depth direction of the door body (2).

6. The refrigeration equipment according to claim 5, characterized in that, The third limiting part (253) includes: The second connector (2531) is connected to the side of the first segment structure (261) that is closer to the second segment structure (262); The second limiting member (2532) is configured to extend from the end of the second connector (2531) away from the first segment structure (261) along the depth direction of the door body (2) toward the storage room (11) or toward the storage room (11).

7. The refrigeration equipment according to claim 6, characterized in that, The cross-section of the second connector (2531) gradually decreases from the direction away from the second segment structure (262) to the direction closer to the second segment structure (262).

8. The refrigeration equipment according to any one of claims 1, 2, 3, 4, 6, and 7, characterized in that, The door body (2) also includes a reinforcing rib (27), which is located on the side of the first end cover (23) near the second end cover (24), and / or on the side of the second end cover (24) near the first end cover (23).

9. The refrigeration equipment according to any one of claims 1, 2, 3, 4, 6, and 7, characterized in that, The first end cap (23) is configured as a three-segment structure, and the three segment structures are arranged sequentially along the width direction of the door body (2).

10. The refrigeration equipment according to any one of claims 1, 2, 3, 4, 6, and 7, characterized in that, The second end cap (24) is configured as a three-segment structure, and the three segment structures are arranged sequentially along the width direction of the door body (2).

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