Door assembly and refrigerator

Abstract

The application relates to the technical field of refrigerators, and provides a door assembly and a refrigerator. The door assembly comprises a door body and a corner guard. One of the corner of the door body and the corner guard is provided with a protrusion, and the other is provided with a through hole matched with the protrusion. The protrusion is clamped in the through hole, and the outer peripheral surface of the protrusion and the inner wall surface of the through hole are in interference fit. The application can stably and reliably install the corner guard on the door body, and has the characteristics of convenient disassembly and assembly, simple structure and the like.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and in particular to a door assembly and a refrigerator. Background Technology

[0002] In existing refrigerators, corner protectors are usually installed at the corners of the door to protect it from bumps and knocks. Currently, corner protectors are typically fixed to the door with screws or glue, which makes installation and removal inconvenient. Utility Model Content

[0003] The purpose of this application is to provide a door assembly and a refrigerator, which aims to solve the problem of inconvenient disassembly and assembly of existing refrigerator door corner protectors.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] In a first aspect, embodiments of this application provide a gate component, including:

[0006] The door body and the corner protector, one of the corners of the door body and the corner protector are provided with a protrusion, and the other is provided with a through hole adapted to the protrusion. The protrusion is engaged in the through hole, and the outer peripheral surface of the protrusion and the inner wall surface of the through hole are interference fit.

[0007] In some embodiments, the protrusion and / or the corner protector are elastic members. The protrusion has a first end and a second end. The cross-sectional area of ​​the first end is smaller than that of the second end. The first end is connected to the component on which the protrusion is located, and the second end is used to limit the corner protector after it passes through the through hole.

[0008] In some embodiments, the cross-sectional area of ​​the protrusion gradually increases from the first end to the second end.

[0009] In some embodiments, the protrusion has a conical or frustum-shaped structure.

[0010] In some embodiments, the protrusion is connected to the component on which the protrusion is located via a connecting seat, wherein the cross-sectional area of ​​the connecting seat is larger than the cross-sectional area of ​​the end of the protrusion adjacent to the component.

[0011] In some embodiments, the door body has protrusions on its corners, the corner guards have through holes, and the protrusions are rigid components while the corner guards are elastic components.

[0012] Alternatively, the door body has through holes at its corners and protrusions on its corner guards, and both the corner guards and the protrusions are elastic elements.

[0013] In some embodiments, the door body includes a door frame and a door panel disposed on the door frame, the door frame having the corner, the corner including a first surface and a second surface connected to each other, the first surface and the second surface forming an angle;

[0014] The corner protector includes a first protective wall, a second protective wall, and a third protective wall. The second protective wall and the third protective wall are connected to one side edge of the first protective wall. The first protective wall is used to fit the outer surface of the door panel, the second protective wall is used to fit the first surface, and the third protective wall is used to fit the second surface.

[0015] In some embodiments, the second protective wall and / or the third protective wall are provided with the protrusion or the through hole, and the corner is provided with the corresponding through hole or the protrusion on the surface of the protective wall.

[0016] In some embodiments, the door panel has a protrusion at the corner that extends beyond the edge of the door frame;

[0017] The first protective wall is provided with a limiting groove at the connection between the second protective wall and the third protective wall, which is adapted to the protrusion, and the protrusion is used to be embedded in the limiting groove.

[0018] Secondly, this application also provides a refrigerator, including: a cabinet and a door assembly as described in the above embodiments, wherein the cabinet has an opening, and the door assembly is disposed on the cabinet and is used to open or close the opening.

[0019] The beneficial effects of the door assembly and refrigerator provided in this application are as follows: Compared with the prior art, this application adopts a protrusion and through hole snap-fit ​​structure based on interference fit between the door body and the corner protector, which can stably and reliably install the corner protector on the door body, and has the characteristics of convenient disassembly and assembly and simple structure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of the door assembly provided in the embodiments of this application;

[0022] Figure 2 for Figure 1 A magnified view of part A;

[0023] Figure 3 This is a schematic diagram of the door structure provided in an embodiment of this application;

[0024] Figure 4 for Figure 3 A magnified view of section B;

[0025] Figure 5 A side view of the protrusion provided in an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the corner protector structure provided in an embodiment of this application.

[0027] The following are the labeling elements in the figure:

[0028] 1. Door body; 11. Door frame; 12. Door panel; 121. Protrusion; 13. Corner; 131. First surface;

[0029] 132. Second surface; 2. Corner guard; 21. First protective wall; 22. Second protective wall; 23. Third protective wall;

[0030] 24. Limiting groove; 3. Protrusion; 31. First end; 32. Second end; 4. Through hole; 5. Connecting seat. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0032] In the description of the embodiments of this application, it should be understood that the terms "length", "width", "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 the embodiments of 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 the embodiments of this application.

[0033] Furthermore, 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 the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0035] In existing refrigerators, the door, as a frequently opened and closed component, is prone to damage at its corners due to external impacts. Therefore, corner protectors are usually installed at the door corners for protection. Currently, corner protectors are mainly installed using two methods: adhesive or screws. Adhesive bonding involves applying adhesive to the contact surfaces between the corner protector and the door. While the assembly process is relatively simple, the adhesive is prone to aging, leading to the corner protectors detaching after prolonged use. Furthermore, residual adhesive is difficult to clean during disassembly, affecting aesthetics and subsequent maintenance. Screw-fixed methods, on the other hand, involve cumbersome installation and removal processes.

[0036] Therefore, the embodiments of this application adopt a protrusion and through-hole snap-fit ​​structure based on interference fit, which can stably and reliably install the corner protector on the door body, and has the characteristics of convenient disassembly and assembly and simple structure.

[0037] In some embodiments, refer to Figures 1 to 6 As shown, this application embodiment provides a door assembly, including: a door body 1 and a corner guard 2. One of the corner guards 13 of the door body 1 and the corner guard 2 is provided with a protrusion 3, and the other is provided with a through hole 4 adapted to the protrusion 3. The protrusion 3 is engaged in the through hole 4, and the outer peripheral surface of the protrusion 3 and the inner wall surface of the through hole 4 are interference fit.

[0038] Door 1 is the main structure of the refrigerator door, which can be hinged to the refrigerator body to open or close the opening on the body for easy access to items. Door 1 may include a door frame 11, a door liner, and a door panel 12. The door liner and door panel 12 are respectively located on the inner and outer sides of the door frame 11, forming a closed foamed space. After assembly, foaming material (such as polyurethane, abbreviated as PU) is injected into this space, and after foaming and curing, an insulation layer is formed, firmly bonding the door liner, door frame 11, and door panel 12 into one unit. Among them, the door liner mainly serves as the internal structural support of door 1 and works with the insulation layer to achieve good sealing and heat preservation performance; the insulation layer mainly plays a role in heat insulation, effectively reducing cold loss. The door panel 12 serves as the appearance surface, and its material can be selected from metal (such as stainless steel, color-coated steel sheet), plastic (such as acrylonitrile-butadiene-styrene copolymer, abbreviated as ABS), or glass, depending on actual needs, taking into account both aesthetics and durability. The corner 13 of door body 1 refers to the corner of door body 1, which usually has four corners.

[0039] The corner protector 2 is used to cover and protect the corners 13 of the door body 1. It can be made of plastic or elastic material with a certain strength and toughness to ensure that the interference fit effect is maintained after multiple disassemblies and reassemblies. Furthermore, the corner protector 2 can be placed at different corners 13 of the door body 1 according to actual needs. When the corner protector 2 is placed at the corner 13 on the hinge side of the door body 1 (the side hinged to the refrigerator body), it should be placed in a position that does not affect the rotation performance of the door body 1.

[0040] A matching snap-fit ​​structure is provided between the corner 13 of the door body 1 and the corner guard 2, one of which has a protrusion 3 and the other has a corresponding through hole 4. For example, Figure 2 , Figure 4 and Figure 6 As shown, a protrusion 3 can be provided on the corner 13 of the door body 1, and a through hole 4 can be provided on the corner guard 2. Alternatively, a protrusion 3 can be provided on the corner guard 2, and a through hole 4 can be provided on the corner 13 of the door body 1. The protrusion 3 and the through hole 4 are connected by an interference fit, that is, the outer diameter of the protrusion 3 is larger than the inner diameter of the through hole 4, and a certain pressure can be applied during assembly to complete the snap-fit.

[0041] The corner protector 2 in this application mainly adopts a press-fit installation method. During installation, the corner protector 2 is aligned with the door corner 13, and the protrusion 3 is aligned with the through hole 4. Then, pressure is applied to press the protrusion 3 into the through hole 4. The radial compression caused by the interference fit creates a large friction and locking force between the contact surfaces, thereby achieving a self-locking and fastening effect. This ensures that the corner protector 2 is firmly attached to the door corner 13, achieving the protective function of the door 1. Conversely, when replacement or maintenance is required, simply apply a reverse pulling force to the outer corner protector 2 to overcome the friction generated by the interference fit, and the protrusion 3 can be pulled out of the through hole 4. The disassembly operation is simple and quick.

[0042] Therefore, the door assembly provided in this application embodiment, by setting a mutually cooperating protrusion 3 and through hole 4 structure between the door corner 13 and the corner protector 2, and using an interference fit to achieve a snap-fit ​​connection, eliminates the need for additional fasteners such as adhesives or screws, avoiding glue aging and falling off and the cumbersome process of screw installation, effectively improving the reliability of the connection. Furthermore, during installation, the protrusion 3 is pressed into the through hole 4 to complete the assembly; during disassembly, it is pulled out by applying reverse force, making operation simple and convenient for maintenance and replacement. At the same time, the interference fit provides sufficient friction and mechanical self-locking capability, ensuring that the corner protector 2 is not easily loosened or accidentally detached during long-term use, significantly improving the stability and durability of the corner protector 2 assembly.

[0043] In some embodiments, refer to Figure 4 and Figure 5As shown, the protrusion 3 and / or the corner protector 2 are elastic members. The protrusion 3 has a first end 31 and a second end 32. The cross-sectional area of ​​the first end 31 is smaller than that of the second end 32. The first end 31 is connected to the component provided by the protrusion 3. The second end 32 is used to limit the corner protector 2 after it passes through the through hole 4.

[0044] The protrusion 3 and the corner protector 2 can be made of materials with a certain degree of elasticity and toughness, such as plastic, rubber, etc.

[0045] The protrusion 3 has two opposing ends. The first end 31 is connected to the component it is located on (door corner 13 or corner protector 2), and its cross-sectional area is smaller than that of the second end 32. Thus, when the second end 32 of the protrusion 3 passes through the through hole 4, the elastic deformation of the corner protector 2 and the protrusion 3 material facilitates the transition, squeezing into the through hole 4. When the second end 32 completely passes through the through hole 4 and reaches the other side, the material springs back, forming a locking mechanism and achieving a self-locking function. Figure 2 As shown.

[0046] Therefore, the embodiments of this application, through size design and elastic materials, combined with interference fit friction, can achieve effective fixation, thereby preventing the corner protector 2 from falling off and improving the stability and reliability of the connection.

[0047] In some embodiments, refer to Figure 5 As shown, the cross-sectional area of ​​the protrusion 3 gradually increases from the first end 31 to the second end 32.

[0048] The protrusion 3 can be conical or frustum-shaped, such as a cone, pyramid, frustum, or truncated cone. For example, ... Figure 2 and Figure 4 As shown, the protrusion 3 is frustum-shaped. The first end 31 of the protrusion 3 is connected to the corner 13 of the door body 1. After the second end 32 passes through the through hole 4 on the corner protector 2, due to its larger cross-sectional area, it forms an interference fit and limit with the edge of the through hole 4, thereby preventing the corner protector 2 from coming out in the opposite direction and realizing the stable mounting of the corner protector 2. This gradual protrusion 3 structure in the embodiment of this application can achieve smooth assembly and improve the convenience of connection.

[0049] In some embodiments, refer to Figure 5 As shown, the protrusion 3 is connected to the component on which the protrusion 3 is located via the connecting seat 5. The cross-sectional area of ​​the connecting seat 5 is larger than the cross-sectional area of ​​the end of the protrusion 3 adjacent to the component.

[0050] The connecting seat 5 can be a circular plate, a square plate, or a base of other shapes. It can be integrally formed with the protrusion 3, and the connecting seat 5 and the components of the protrusion 3 can be fixed by welding, snap-fitting, or other methods.

[0051] For example, such as Figure 4As shown, the protrusion 3 is located on the corner 13 of the door body, and the connecting seat 5 is embedded on the inner side of the corner 13 of the door body. The protrusion 3 extends from the inside to the outside of the corner 13 to engage with the through hole 4 on the corner guard 2. Alternatively, the protrusion 3 is located on the corner guard 2, and the connecting seat 5 is located on the outside of the corner guard 2. The protrusion 3 extends inward through the corner guard 2 and passes through the through hole 4 of the corner 13 of the door body.

[0052] In this embodiment, the cross-sectional area of ​​the connector 5 is larger than the cross-sectional area of ​​the end of the protrusion 3 adjacent to the component (first end). That is, the connector 5 is larger than the root of the protrusion 3, which increases the connection area with the component and thus improves the connection stability of the protrusion 3.

[0053] In some embodiments, refer to Figure 2 , Figure 4 and Figure 6 As shown, the corner 13 of the door body 1 is provided with a protrusion 3, and the corner guard 2 is provided with a through hole 4. The protrusion 3 is a rigid part, and the corner guard 2 is an elastic part.

[0054] In this embodiment, rigid protrusions 3 are provided on the corners 13 of the door body, which can be made of rigid plastic or metal. The corner protectors 2 can be made of elastic materials such as rubber, silicone or thermoplastic elastomer (TPE), and have cushioning and anti-collision functions.

[0055] During assembly, align the through hole 4 on the corner protector 2 with the protrusion 3 on the door corner 13; since the corner protector 2 is made of elastic material, the edge of the through hole 4 will expand elastically when the protrusion 3 is inserted; the protrusion 3 gradually passes through the through hole 4 until the second end 32 with a larger cross-sectional area completely passes through the through hole 4, thus achieving smooth assembly and reliable locking.

[0056] In other embodiments, the corner 13 of the door body 1 is provided with a through hole 4, and the corner guard 2 is provided with a protrusion 3, and both the corner guard 2 and the protrusion 3 are elastic elements.

[0057] In this embodiment, both the corner protector 2 and the protrusion 3 are elastic components, and the corner protector 2 and the protrusion 3 can be integrally formed. During assembly, the elastic protrusion 3 on the corner protector 2 is aligned with the through hole 4 on the corner 13 of the door body. The elastic protrusion 3 is deformed under pressure when it enters the through hole 4 until the second end 32 with a larger cross-sectional area completely passes through the through hole 4, thus achieving an interference fit.

[0058] In some embodiments, refer to Figures 1 to 6As shown, the door body 1 includes a door frame 11 and a door panel 12 disposed on the door frame 11. The door frame 11 has a corner 13, which includes a first surface 131 and a second surface 132 connected to each other, forming an angle between the first surface 131 and the second surface 132. The corner protector 2 includes a first protective wall 21, a second protective wall 22 and a third protective wall 23. The second protective wall 22 and the third protective wall 23 are connected to one side edge of the first protective wall 21. The first protective wall 21 is used to fit the outer surface of the door panel 12, the second protective wall 22 is used to fit the first surface 131, and the third protective wall 23 is used to fit the second surface 132.

[0059] The door frame 11 is typically a rectangular frame that supports the entire door panel 12. The door panel 12 covers the outside of the door frame 11 and serves as the exterior surface. The corner 13 is located at the corner of the door frame 11 and is formed by the intersection of a first surface 131 and a second surface 132, typically at a 90° angle. One of the first surface 131 and the second surface 132 is located on the side of the corner 13, and the other is located at the top or bottom of the corner 13.

[0060] The corner protector 2 can be a one-piece molded structure. The top of the first protective wall 21 of the corner protector 2 has a downwardly concave arc surface to improve aesthetics. The second protective wall 22 and the third protective wall 23 are perpendicular to each other and are connected to the side of the first protective wall 21 away from the arc surface.

[0061] During assembly, align the first protective wall 21 of the corner protector 2 with the outer surface of the door panel 12, and align the second protective wall 22 and the third protective wall 23 with the first surface 131 and the second surface 132 of the corner 13, respectively. When the corner 13 is provided with a protrusion 3 and the corner protector 2 is provided with a through hole 4, align the through hole 4 on the corner protector 2 with the protrusion 3 on the corner 13, apply appropriate pressure, so that the protrusion 3 completely passes through the through hole 4 and forms an interference fit. The second end 32 of the protrusion 3 provides an anti-disengagement limiting function to ensure that the corner protector 2 is firmly fixed on the corner 13 of the door.

[0062] This embodiment of the application achieves multi-directional protection for the corners 13 of the refrigerator door by adopting a three-dimensional covering structure for the corner protectors. Furthermore, the snap-fit ​​design between the protrusion 3 and the through hole 4 ensures that the corner protectors 2 are firmly fixed to the door 1, providing excellent assembly convenience and stability.

[0063] In some embodiments, refer to Figure 6 As shown, the second protective wall 22 and / or the third protective wall 23 are provided with protrusions 3 or through holes 4, and the corner 13 is provided with matching through holes 4 or protrusions 3 on the surface of the protective wall.

[0064] In embodiments of this application, the connection structures on the second protective wall 22 and the third protective wall 23 can be flexibly configured. For example, one of the second protective wall 22 and the third protective wall 23 may have a protrusion 3 or a through hole 4, while the other may have no connection structure, achieving a single-point snap-fit, which is simple in structure and low in cost. Another example is... Figure 2 and Figure 6 As shown, through holes 4 (or protrusions 3) are provided on both the second protective wall 22 and the third protective wall 23, forming a double-point connection with the corresponding protrusions 3 (or through holes 4) on the door body 1, thereby improving stability.

[0065] In some embodiments, refer to Figure 2 , Figure 4 and Figure 6 As shown, the door panel 12 has a protrusion 121 at the corner 13 that protrudes from the edge of the door frame 11; the connection between the first protective wall 21 and the second protective wall 22 and the third protective wall 23 is provided with a limiting groove 24 that is adapted to the protrusion 121, and the protrusion 121 is used to be embedded in the limiting groove 24.

[0066] The door panel 12 covers the outside of the door frame 11, and its four edges may slightly protrude from the door frame 11, extending outward to form protrusions 121. A limiting groove 24 may be provided at the connection between the first protective wall 21 and the second protective wall 22 and the third protective wall 23. The shape and size of the limiting groove 24 are adapted to the protrusions 121 on the door panel 12 to form a concave-convex limiting fit. The shape of the limiting groove 24 may be L-shaped.

[0067] During assembly, align the corner protector 2 with the door corner 13, align the limiting groove 24 on the corner protector 2 with the protrusion 121 on the door panel 12, and then press the corner protector 2 so that the protrusion 3 and the through hole 4 are engaged. The protrusion 121 is then embedded in the limiting groove 24, achieving double limiting, which further improves the installation stability of the corner protector 2 and prevents it from falling off.

[0068] In some embodiments, this application also provides a refrigerator, including: a cabinet and a door assembly as described above, the cabinet having an opening, the door assembly being disposed on the cabinet and used to open or close the opening.

[0069] The cabinet is the main structure of the refrigerator, forming a storage space inside. The opening is located on the front side of the cabinet so that users can easily take out or put in items through the opening. The door 1 of the door assembly can be connected to the cabinet by hinges to open or close the opening.

[0070] The refrigerator provided in this application embodiment, through the door assembly of the above embodiment, can achieve reliable protection of the door body 1, prevent bumps and damage, and thus extend its service life.

[0071] The above are merely preferred embodiments of this application and are not intended to limit the embodiments of this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A door assembly, characterized in that, include: The door body and the corner protector, one of the corners of the door body and the corner protector are provided with a protrusion, and the other is provided with a through hole adapted to the protrusion. The protrusion is engaged in the through hole, and the outer peripheral surface of the protrusion and the inner wall surface of the through hole are interference fit.

2. The door assembly according to claim 1, characterized in that, The protrusion and / or the corner protector are elastic elements. The protrusion has a first end and a second end. The cross-sectional area of ​​the first end is smaller than that of the second end. The first end is connected to the component on which the protrusion is located. The second end is used to limit the corner protector after it passes through the through hole.

3. The door assembly according to claim 2, characterized in that, The cross-sectional area of ​​the protrusion gradually increases from the first end to the second end.

4. The door assembly according to claim 2, characterized in that, The protrusion has a conical or frustum-shaped structure.

5. The door assembly according to claim 1, characterized in that, The protrusion is connected to the component on which the protrusion is located via a connecting seat, and the cross-sectional area of ​​the connecting seat is larger than the cross-sectional area of ​​the end of the protrusion adjacent to the component.

6. The door assembly according to claim 1, characterized in that, The door body has protrusions on its corners, and the corner protectors have through holes. The protrusions are rigid components, while the corner protectors are elastic components. Alternatively, the door body has through holes at its corners and protrusions on its corner guards, and both the corner guards and the protrusions are elastic elements.

7. The door assembly according to any one of claims 1 to 6, characterized in that, The door body includes a door frame and a door panel disposed on the door frame. The door frame has the corner, and the corner includes a first surface and a second surface connected to each other, with an included angle between the first surface and the second surface. The corner protector includes a first protective wall, a second protective wall, and a third protective wall. The second protective wall and the third protective wall are connected to one side edge of the first protective wall. The first protective wall is used to fit the outer surface of the door panel, the second protective wall is used to fit the first surface, and the third protective wall is used to fit the second surface.

8. The door assembly according to claim 7, characterized in that, The second protective wall and / or the third protective wall are provided with the protrusion or the through hole, and the corner is provided with the corresponding through hole or protrusion on the surface of the protective wall.

9. The door assembly according to claim 7, characterized in that, The door panel has a protrusion at the corner that extends beyond the edge of the door frame; The first protective wall is provided with a limiting groove at the connection between the second protective wall and the third protective wall, which is adapted to the protrusion, and the protrusion is used to be embedded in the limiting groove.

10. A refrigerator, characterized in that, include: The housing and the door assembly according to any one of claims 1 to 9, wherein the housing has an opening, the door assembly is disposed on the housing, and is used to open or close the opening.

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