Refrigerator hinge and hinge cover assembly structure
By independently arranging water pipes, high-voltage electrical lines, and low-voltage electrical lines in layers within the refrigerator hinge cover assembly, and connecting them to the refrigerator door via plug-in terminals, the problems of chaotic wiring and safety are solved, resulting in a more efficient, safe, and reliable refrigerator hinge structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SONLU ELECTRICAL APPLIANCE
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-21
AI Technical Summary
The wiring layout in existing refrigerator hinge cover assemblies is chaotic, resulting in poor reliability, low safety, and difficult maintenance. Furthermore, different types of wiring are prone to electromagnetic interference and leakage risks.
Water pipes, high-voltage and low-voltage lines are arranged in separate layers and connected to the refrigerator door through plug terminals. The upper and lower hinge covers cooperate to form a closed space to ensure the isolation and protection of the lines.
It improves electromagnetic compatibility and operational stability, enhances waterproof and dustproof performance, simplifies installation and maintenance, extends circuit lifespan, and increases hinge load-bearing capacity.
Smart Images

Figure CN224149373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of household appliance parts, and in particular to a refrigerator hinge and hinge cover assembly structure. Background Technology
[0002] Among modern household appliances, refrigerators are widely used refrigeration devices, and their structural design directly affects user experience, energy efficiency, and safety. The refrigerator's hinge assembly, as a key component connecting the refrigerator door and the cabinet, typically requires the installation of various functional circuits, such as water pipe lines, high-voltage electrical lines, and low-voltage electrical lines, to support the refrigerator's refrigeration, lighting, display, and control functions.
[0003] Existing refrigerator hinge cover assemblies have the following issues regarding wiring management:
[0004] 1. The wiring layout is disorganized, affecting reliability;
[0005] In the existing technology, the internal wiring harness of the refrigerator hinge cover assembly usually adopts a simple wiring harness bundling method, which concentrates the high-voltage, low-voltage and water pipe lines in a limited space. This method is prone to wires crossing and tangling, increasing the complexity of installation, and may cause wire damage due to vibration or friction during long-term use, affecting the normal operation of the refrigerator.
[0006] 2. Security issues are prominent;
[0007] Since high-voltage power lines, low-voltage power lines, and water pipes coexist in the same space, electromagnetic interference may occur if they are not properly isolated, affecting the stability of low-voltage signals. In addition, the risk of leakage from water pipes may also affect the safety of electrical circuits, and may even lead to short circuit hazards, posing a significant safety risk.
[0008] 3. Difficult to repair or replace;
[0009] Because the wiring is not properly hierarchically managed, the entire hinge cover assembly needs to be disassembled during maintenance, which may affect other wiring, increasing the difficulty of maintenance and maintenance costs. Utility Model Content
[0010] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0011] Therefore, to solve the above-mentioned technical problems, this utility model provides the following technical solution: a refrigerator hinge cover assembly structure, including...
[0012] The hinge cover has independently arranged water pipes, high-voltage electrical lines, and low-voltage electrical lines, which are connected to the refrigerator door through plug terminals; wherein, the high-voltage electrical lines are located on the upper layer, the low-voltage electrical lines are located on the lower layer, and the water pipes are arranged on one side of the high-voltage and low-voltage electrical lines.
[0013] The upper hinge cover is installed in conjunction with the lower hinge cover to cover the opening of the lower hinge cover, forming a closed space to protect the internal wiring.
[0014] As a preferred embodiment of the refrigerator hinge cover assembly structure of this utility model, the lower hinge cover is provided with a first U-shaped portion for accommodating water pipes, a second U-shaped portion for accommodating high-voltage electrical lines, and a third U-shaped portion for accommodating low-voltage electrical lines in layers inside.
[0015] The first U-shaped portion and the third U-shaped portion are both U-shaped structures with their openings facing downwards, while the second U-shaped portion is a U-shaped structure with its opening facing upwards.
[0016] As a preferred embodiment of the refrigerator hinge cover assembly structure of this utility model, the top opening of the second U-shaped part is provided with a mounting groove, and the two side edges of the hinge cover are sealed and embedded in the mounting groove.
[0017] As a preferred embodiment of the refrigerator hinge cover assembly structure of this utility model, the bottom two sides of the hinge cover are provided with sealing connecting feet, and the connection between the sealing connecting feet and the second U-shaped part is provided with a sealing protrusion, which is fastened to the sealing groove on the inner wall of the second U-shaped part.
[0018] As a preferred embodiment of the refrigerator hinge cover assembly structure of this utility model, the water pipe is arranged in an L-shape inside the first U-shaped part, and the first U-shaped part has a pipe opening through which the water supply pipe passes.
[0019] The low-voltage line is arranged in an L-shape inside the third U-shaped section and extends out from below the third U-shaped section.
[0020] As a preferred embodiment of the refrigerator hinge cover assembly structure of this utility model, the second U-shaped part has an L-shaped structure, and the power line is arranged along its extension direction, passes through the second U-shaped part and exits from the top.
[0021] The high-voltage power line is located in the cavity formed after the hinge cover and the second U-shaped part are connected.
[0022] In a preferred embodiment of the refrigerator hinge cover assembly structure of the present invention, the bottom cavity of the third U-shaped portion is used to arrange the refrigerator hinge, and the refrigerator hinge is used to install the hinge cover assembly to the refrigerator body.
[0023] As a preferred embodiment of the refrigerator hinge cover assembly structure of this utility model, the wiring structure of the refrigerator body is divided into three paths, which are used for independent outgoing lines of high-voltage lines, low-voltage lines and water pipe lines, and are connected to the outgoing lines of the refrigerator door through plug-in terminals.
[0024] This solution also provides a refrigerator hinge, including the hinge cover assembly structure described in any of the above claims.
[0025] The beneficial effects of this utility model are:
[0026] 1. This utility model arranges the high-voltage power lines on the upper layer, the low-voltage power lines on the lower layer, and the water pipes separately on the side, thereby avoiding mutual interference between different types of lines and improving electromagnetic compatibility and operational stability.
[0027] 2. This utility model further enhances the waterproof and dustproof effect and improves the overall protection level of the refrigerator by tightly fitting the upper and lower hinge covers.
[0028] 3. This utility model has specially reserved hinge installation space in the hinge cover assembly, so that the hinge can be stably embedded, improving the load-bearing capacity of the hinge and reducing deformation or loosening caused by long-term stress. Attached Figure Description
[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0031] Figure 2 This is a schematic diagram of the exploded structure of the components of this utility model.
[0032] Figure 3 This is a partially enlarged structural schematic diagram of the present invention.
[0033] Figure 4 This is a schematic diagram of the installation structure of the present invention on the refrigerator body and refrigerator door.
[0034] Figure 5 For the present utility model Figure 4 A schematic diagram of the exploded structure of a partial component.
[0035] Figure 6 For the present utility model Figure 4 A partial upward view of the refrigerator door.
[0036] In the diagram: 100, hinge cover; 101, water pipe line; 101a, first U-shaped section; 101a-1, pipe opening; 102, high-voltage line; 102a, second U-shaped section; 102a-1, mounting groove; 103, low-voltage line; 103a, third U-shaped section;
[0037] 200. Hinge top cover; 201. Sealing connecting foot; 201a. Sealing protrusion;
[0038] 300. Refrigerator hinges;
[0039] 400. Refrigerator door; 401. Water pipe channel; 402. Power line channel; 403. Door hinge bushing. Detailed Implementation
[0040] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0041] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0042] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0043] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0044] Example 1
[0045] Reference Figures 1-3 The present invention provides a refrigerator hinge cover assembly structure, which is mainly used to protect the refrigerator hinge and various functional circuits arranged inside, and provides good sealing and reliability.
[0046] The refrigerator hinge cover assembly structure includes:
[0047] The hinge cover 100 has a layered and independently arranged water pipe line 101, high power line 102 and low power line 103 inside, and is connected to the refrigerator door 400 through plug-in terminals.
[0048] The upper hinge cover 200 is installed in conjunction with the lower hinge cover 100 to cover the opening of the lower hinge cover 100, forming a closed space to protect the internal wiring.
[0049] In this embodiment, the hinge cover 100 can be made of plastic or metal and is designed with multiple partition structures to accommodate different functional circuits. Among them, the high-voltage circuit 102 is arranged on the upper layer, the low-voltage circuit 103 is arranged on the lower layer, and the water pipe circuit 101 is arranged separately on the side to ensure that each circuit is independent of each other and reduce interference.
[0050] The hinge cover 200 can be installed at the opening of the hinge cover 100 using either a snap-fit or screw (not shown in the figure) method (the snap-fit method is preferred in this design) to ensure sealing and facilitate disassembly and maintenance. The overall structure is compact, effectively protecting the internal wiring while accommodating the movement requirements of the refrigerator door 400.
[0051] In practical use, when the refrigerator door 400 is opened or closed, the hinge cover assembly provides support and protection, preventing the wiring from being damaged by external forces and improving the overall reliability and durability of the refrigerator.
[0052] Example 2
[0053] Reference Figures 1-6 This is the second embodiment of the present invention. The difference between this embodiment and the previous embodiment is that the hinge cover 100 has been optimized to make its internal structure more orderly and to further improve safety.
[0054] The hinge cover 100 includes:
[0055] First U-shaped part 101a: used to accommodate water pipe line 101, with the opening facing downward, which can stably limit the water pipe and prevent it from moving.
[0056] The second U-shaped part 102a is used to accommodate the high-voltage power line 102. The opening faces upward, which facilitates installation and maintenance, and avoids interference with water pipes.
[0057] The third U-shaped part 103a is used to accommodate the low-voltage line 103. The opening faces downward. The third U-shaped part 103a is equipped with a stop block for limiting the low-voltage line 103 to ensure that the line is fixed and stable.
[0058] In addition, the water pipe line 101, the power line 102, and the low-voltage line 103 are arranged in an L-shape, wherein:
[0059] The water pipe 101 extends laterally within the first U-shaped section 101a and passes through the pipe opening 101a-1 before entering the water pipe channel 401 of the door body, ensuring unobstructed water flow.
[0060] The low-voltage line 103 is laid out along an L-shaped path inside the third U-shaped part 103a, and passes through the bottom of the U-shaped part into the door hinge bushing 403 to ensure the independence of the signal line and reduce interference.
[0061] By using the above-mentioned layered layout method, the intersection and interference between high-voltage, low-voltage, and water pipe lines can be effectively reduced, thereby improving the safety and operational stability of the lines.
[0062] Example 3
[0063] Reference Figures 1-5 This is the third embodiment of the present invention. The difference between this embodiment and the above embodiments is that: in this embodiment, a mounting groove 102a-1 is provided at the top opening of the second U-shaped part 102a to accommodate the edge of the hinge cover 200; the two side edges of the hinge cover 200 are sealed and embedded in the mounting groove 102a-1, so that the hinge cover assembly forms a closed structure.
[0064] In addition, sealing connecting feet 201 are provided on both sides of the bottom of the hinge cover 200, and sealing protrusions 201a are provided at the connection between the sealing connecting feet 201 and the second U-shaped part 102a.
[0065] The sealing connecting foot 201 ensures a tight fit between the upper hinge cover 200 and the lower hinge cover 100, reducing airflow and improving dustproof performance.
[0066] The sealing protrusion 201a can preferably be designed as an elastic sealing structure, so that it can snap into the corresponding groove on the inner wall of the U-shaped part 102a, so that the sealing connecting foot 201 is tightly attached to the inner wall of the U-shaped part 102a, thereby enhancing the sealing performance and preventing moisture or dust from entering the component.
[0067] This sealed structure design can significantly improve the protection level of the refrigerator hinge cover assembly, extend the service life of the circuit, and improve the overall safety performance of the refrigerator.
[0068] Example 4
[0069] Reference Figures 1-5 This is the fourth embodiment of the present invention. The difference between this embodiment and the above embodiments is that this embodiment further optimizes the wiring connection method, making the installation and maintenance of the refrigerator hinge cover assembly more convenient.
[0070] The refrigerator's wiring structure is designed with three independent outgoing lines:
[0071] The output terminal of the high-voltage line 102 uses a plug-in terminal (not shown in the figure) to directly connect to the high-voltage input terminal of the refrigerator door 400, avoiding complicated wiring operations.
[0072] The outgoing terminal of the low-voltage line 103 can be connected to the signal control module of the refrigerator door 400 through a flexible wire harness (not shown in the figure) to ensure stable signal transmission.
[0073] The outlet of water pipe line 101 can be connected to the water supply system inside the refrigerator door 400 via a quick-connect fitting (not shown in the figure) to ensure quick installation and removal of the water pipe.
[0074] Thanks to this design, the installation method of the hinge cover assembly in this embodiment is greatly simplified, making production and assembly more efficient and reducing maintenance difficulty. When users or maintenance personnel replace a certain line, they do not need to disassemble the entire hinge cover assembly, thereby improving maintenance convenience.
[0075] Example 5
[0076] Reference Figures 1-5 This is the fifth embodiment of the present invention. The difference between this embodiment and the previous embodiments is that the hinge installation structure is optimized to enhance the stability and durability of the hinge.
[0077] The bottom of the third U-shaped portion 103a of the hinge lower cover 100 has a dedicated hinge installation cavity for installing the refrigerator hinge 300; the hinge 300 is fixed in the cavity by screws so that it can be firmly connected to the refrigerator body and the door.
[0078] In addition, this embodiment optimizes the wiring method of the high-voltage line 102, so that it is arranged in the cavity of the hinge cover assembly and enters the high-voltage channel 402 after passing through the second U-shaped part 102a, ensuring that the high-voltage line is arranged reasonably and avoiding deformation or breakage of the line due to the opening and closing of the refrigerator door 400.
[0079] Through the above design, the refrigerator hinge cover assembly of this embodiment can not only stably support the refrigerator door 400, but also effectively extend the service life of the hinge and internal wiring, and improve overall reliability.
[0080] The above embodiments provide different optimized solutions for the structure of a refrigerator hinge and hinge cover assembly. Each solution is designed in detail to improve safety, sealing performance, ease of installation, and durability. These solutions not only improve upon the shortcomings of existing technologies but also achieve more efficient, safe, and reliable technical solutions through reasonable structural optimization.
[0081] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.
[0082] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A refrigerator hinge cover assembly structure, characterized in that: include The hinge cover (100) has a water pipe line (101), a high-voltage line (102), and a low-voltage line (103) arranged independently in layers, and is connected to the refrigerator door (400) through plug terminals; wherein, the high-voltage line (102) is located on the upper layer, the low-voltage line (103) is located on the lower layer, and the water pipe line (101) is arranged on one side of the high-voltage line (102) and the low-voltage line (103); The upper hinge cover (200) is installed in conjunction with the lower hinge cover (100) to cover the opening of the lower hinge cover (100) and form a closed space to protect the internal wiring.
2. The refrigerator hinge cover assembly structure according to claim 1, characterized in that: The hinge cover (100) is internally layered with a first U-shaped portion (101a) for accommodating water pipe line (101), a second U-shaped portion (102a) for accommodating high-voltage line (102), and a third U-shaped portion (103a) for accommodating low-voltage line (103). The first U-shaped portion (101a) and the third U-shaped portion (103a) are both U-shaped structures with their openings facing downwards, while the second U-shaped portion (102a) is a U-shaped structure with its opening facing upwards.
3. The refrigerator hinge cover assembly structure according to claim 2, characterized in that: The second U-shaped part (102a) has a mounting groove (102a-1) at the top opening, and the two side edges of the hinge cover (200) are sealed and embedded in the mounting groove (102a-1).
4. The refrigerator hinge cover assembly structure according to claim 3, wherein: The hinge cover (200) has sealing connecting feet (201) on both sides of its bottom. The sealing connecting feet (201) and the second U-shaped part (102a) have sealing protrusions (201a) at their connection. The sealing protrusions (201a) are fastened to the sealing groove on the inner wall of the second U-shaped part (102a).
5. The refrigerator hinge cover assembly structure according to claim 4, wherein: The water pipe line (101) is arranged in an L-shape inside the first U-shaped part (101a), and the first U-shaped part (101a) is provided with a pipe opening (101a-1) through which the water supply pipe line (101) passes; The low-voltage line (103) is arranged in an L-shape inside the third U-shaped part (103a) and extends out from below the third U-shaped part (103a).
6. The refrigerator hinge cover assembly structure according to claim 5, wherein: The second U-shaped part (102a) has an L-shaped structure, and the power line (102) is arranged along its extension direction, passing through the second U-shaped part (102a) and exiting from above; The high-voltage line (102) is located in the cavity formed after the hinge cover (200) and the second U-shaped part (102a) are connected.
7. The refrigerator hinge cover assembly structure according to claim 6, wherein: The bottom cavity of the third U-shaped part (103a) is used to arrange the refrigerator hinge (300), which is used to install the hinge cover assembly to the refrigerator body.
8. The refrigerator hinge cover assembly structure as described in claim 7, characterized in that: The refrigerator body has a three-way wiring structure, which is used for the independent outgoing lines of the high-voltage line (102), the low-voltage line (103) and the water pipe line (101), and is connected to the outgoing lines of the refrigerator door (400) through plug-in terminals.
9. A refrigerator hinge, characterized by: Includes the hinge cover assembly structure as described in any one of claims 1-8.