A refrigerator door wire passing hinge assembly and a refrigerator
By arranging the hinge components and wiring components separately in the refrigerator door hinge assembly, the problem of cumbersome power connection cable assembly is solved, enabling rapid power cable connection and improving refrigerator production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU WANBAO GRP REFRIGERATOR
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-29
AI Technical Summary
The existing refrigerator door power connection cable assembly is cumbersome, resulting in low production efficiency. This is mainly because the hinge shaft diameter limits the diameter of the wire hole, requiring the power connection cable to pass through the first wire hole before the terminal block can be crimped.
The system employs separately arranged hinge and cable guide components. The hinge component is used for hinged connections, while the cable guide component is used for power connection cable routing. The cable guide component's grooves and through holes enable quick connection of the power cable, avoiding the limitation imposed by the hinge shaft diameter on the cable guide hole.
It enables quick and simple assembly of power cords, improves refrigerator production efficiency, and ensures reliable door installation and rapid and efficient connection of power cords.
Smart Images

Figure CN224300650U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigerator technology, specifically a refrigerator door through-hing assembly and a refrigerator using the refrigerator door through-hing assembly. Background Technology
[0002] Current refrigerator doors with control, display, and lighting components typically have their power supply wires routed through a groove in the hinge assembly before connecting to the power wires of the door's electrical components via terminals. For example, a hinge assembly disclosed in Chinese Patent Application No. 2018218987810 uses a first through-hole, a wire-holding groove, and a second through-hole on the hinge to route the power wires. The drawback of this wiring structure is that the first through-hole is coaxial with the hinge shaft. This limits the diameter of the first through-hole, requiring the power wires on the refrigerator door to pass through it before being crimped to the terminals. This results in cumbersome internal power wiring assembly and ultimately low refrigerator production efficiency. Therefore, an improvement is necessary. Summary of the Invention
[0003] The purpose of this utility model is to provide a refrigerator door through-hing assembly and a refrigerator using the refrigerator door through-hing assembly, so as to solve the technical problems mentioned in the background art.
[0004] The objective of this utility model can be achieved through the following technical solutions:
[0005] A refrigerator door hinge assembly includes a main base box, a door hinge, and a cabinet hinge. The main base box has a receiving cavity. The door hinge is installed in the main base box and has a shaft hole. The cabinet hinge has a hinge shaft located in the main base box. The hinge shaft is inserted into the shaft hole to form a hinged connection between the door hinge and the cabinet hinge. The assembly is characterized by further including a wire guide, which is located near the cabinet hinge. The wire guide has a wire groove that passes through the main base box. One end of the wire groove has an exit hole located in the main base box, and the other end has an inlet hole located outside the main base box. The main base box has a main through hole near the exit hole.
[0006] In the optimized solution, the wire guide has a third plate and a wire guide arm located on the third plate. The wire groove is located on the side of the wire guide arm away from the box hinge. The through hole is located at the end of the wire guide arm and is arranged perpendicular to the wire guide arm. The in hole is located at one end of the wire guide arm that connects to the third plate. The third plate has a third mounting hole for fixing the wire guide.
[0007] In the optimized version, this utility model also includes a box bottom, which is located near the wire guide. The box bottom has an exit opening opposite the wire guide hole, and the box bottom also has a wire through hole on its wall panel.
[0008] In the optimized solution, the door hinge has a first hinge plate and a first block located on the first hinge plate. The shaft hole is provided on the first block and arranged parallel to the first hinge plate. The first hinge plate has a first mounting hole. The main base box has a first mounting post hole corresponding to the first mounting hole. The door hinge is fastened to the main base box through the first mounting hole, the first mounting post hole and bolts.
[0009] Furthermore, the box hinge has a second hinge plate and a shaft arm located on the second hinge plate. The hinge shaft is located at the end of the shaft arm and is arranged perpendicular to the shaft arm. The second hinge plate has a second mounting hole for fixing the box hinge.
[0010] Furthermore, the door hinge also includes a second part, which is located on both sides of the shaft arm of the hinge, corresponding to the first part, so that the shaft arm of the hinge is limited between the second part and the first part. The second part has a through hole, and the main bottom box has a post hole corresponding to the through hole of the second part. The first hinge plate has a connecting hole corresponding to the through hole of the second part. Bolts pass through the through hole of the second part of the second part, the connecting hole of the second part of the first hinge plate, and the post hole of the second part of the main bottom box in sequence, so that the second part, the first hinge plate and the main bottom box are fastened together.
[0011] Furthermore, the first hinge plate of the door hinge also has a limiting groove near the shaft hole, and the shaft arm of the box hinge has an arc-shaped structure that bends toward the limiting groove. The outer wall of the end of the shaft arm has a protruding part that is inserted into the limiting groove. The limiting groove restricts the range of motion of the protruding part, thereby restricting the rotation angle of the door hinge relative to the box hinge.
[0012] In the optimized design, the main bottom box has an L-shaped shell structure with a first opening and a second opening. The second opening is covered by a sealing plate, and the sealing plate has a rotation space corresponding to the box hinge and the wire guide respectively. The door hinge and the box hinge can be rotated until the first opening of the main bottom box is directly opposite the box hinge.
[0013] A refrigerator includes a cabinet and a door. The door is hinged to the cabinet. The door includes a door shell and insulation material filled inside the door shell. An electrical component is mounted on the door and connected to a power supply line. The power supply line runs along the interior of the door shell. The cabinet includes a cabinet shell and insulation material filled inside the cabinet shell. A power outlet line is routed inside the cabinet shell. The refrigerator is characterized in that the door hinge uses the aforementioned refrigerator door through-hing assembly, and the main bottom box is located on the left or right side of the back of the door shell. The first opening is flush with the side of the door housing, and the second opening is flush with the back of the door housing. The hinge and the wire guide are fixed on the left or right side of the front of the door housing, and are arranged vertically at intervals. The power output wire is laid near the wire guide and passes through the wire groove through the through hole. The power output wire passes through the through hole along the wire groove and enters the main bottom box. The power input wire is laid near the main bottom box and passes through the main through hole. The power output wire and the power input wire are connected in the main bottom box.
[0014] In the optimized design, the refrigerator door wiring hinge assembly also includes a cabinet bottom box, which is located inside the cabinet near the wiring component. The cabinet bottom box has an exit opening opposite the wire insertion hole of the wiring component, and the wall panel of the cabinet bottom box also has a cabinet wire through hole. The power supply wire passes through the cabinet wire through hole into the cabinet bottom box, and then enters the wire insertion hole of the wiring component through the exit opening of the cabinet bottom box.
[0015] This utility model has the following substantial features and advancements:
[0016] 1. The refrigerator door wiring hinge assembly of this utility model is provided with a hinge component for hinge connection and a wiring component for power connection cable routing. By arranging these two components separately, it combines the rotatable function of the door hinge with the function of routing the power connection cable. It effectively avoids and solves the limitation of the hinge shaft diameter on the hole diameter of the wiring hole in the prior art. The end of the power supply cable on the cabinet is connected to the terminal and then routed along the wiring component, making the assembly of the internal power cable of the refrigerator simple and quick, and effectively improving the convenience and efficiency of the assembly of the internal power cable of the refrigerator.
[0017] 2. The refrigerator of this utility model adopts the refrigerator door through-hing assembly, which enables the door to open and close smoothly and be reliably installed. It also solves the technical problem of fast and efficient connection of power connection wires between the door and the cabinet, and ultimately achieves the technical goal of effectively improving the production efficiency of the refrigerator. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the refrigerator in the open state of the present invention.
[0019] Figure 2 for Figure 1 Enlarged view of the installation position of the refrigerator door hinge assembly under the current condition.
[0020] Figure 3 for Figure 1 A schematic diagram showing the structure of the refrigerator door hinge assembly installed inside the door and cabinet shells under the specified conditions.
[0021] Figure 4 for Figure 3 Enlarged view of the installation position of the refrigerator door hinge assembly under the current condition.
[0022] Figures 5 to 8 This is a structural diagram showing the sequential disassembly of the refrigerator door through-hing assembly of this utility model.
[0023] Figure 9 This is an assembly diagram of the door hinge and box hinge of this utility model.
[0024] Figure 10 This is a cross-sectional view of the assembled door hinge and box hinge of this utility model.
[0025] Figure 11 This is a schematic diagram of the wire guide of this utility model.
[0026] Figure 12 This is an assembly diagram of the bottom box of the refrigerator body and the door hinge assembly of the present invention.
[0027] Figure 13 This is a schematic diagram of the structure of the bottom box of the box according to this utility model. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings.
[0029] Example
[0030] refer to Figures 1 to 13 A refrigerator includes a cabinet body 8 and a door body 9. The door body 9 includes a door shell and insulation material filled within the door shell. An electrical component 91 is mounted on the door body 9, and the electrical component 91 is connected to a power input line 90, which runs along the interior of the door shell. The cabinet body 8 includes a cabinet shell and insulation material filled within the cabinet shell, and a power output line 80 is arranged inside the cabinet shell. The door body 9 is hinged to the cabinet body 8.
[0031] For details, please refer to the following: Figures 1 to 4 The door hinge is a refrigerator door wire-passing hinge assembly. The refrigerator door wire-passing hinge assembly includes a main bottom box 1, a door hinge 2, a cabinet hinge 3, a wire-passing component 4, and a cabinet bottom box 5.
[0032] The main base box 1 has a receiving cavity. The door hinge 2 is installed inside the main base box 1 and has a shaft hole 21. The box hinge 3 has a hinge shaft 31 located inside the main base box 1. The hinge shaft 31 is inserted into the shaft hole 21 to make the door hinge 2 and the box hinge 3 rotatably connected. The wire guide 4 is located near the box hinge 3. The wire guide 4 has a wire groove 41 that passes through the main base box 1. One end of the wire groove 41 has a through hole 42 located inside the main base box 1, and the other end has a through hole 43 located outside the main base box 1. The main base box 1 has a main through hole 11 near the through hole 42.
[0033] For details, please refer to the following: Figure 3 , Figure 4 , Figure 12 and Figure 13 The bottom box 5 is located inside the housing near the cable guide 4. The bottom box 5 has an exit opening opposite the cable guide 44 through hole 43. The bottom box 5 also has a cable through hole 51 on its wall panel. The power supply cable 80 passes through the cable through hole 51 into the bottom box 5 and enters the cable guide 44 through hole 43 along the exit opening of the bottom box 5.
[0034] For details, please refer to the following: Figures 5 to 8 In this embodiment, the main bottom box 1 has an L-shaped shell structure with a first opening and a second opening. The second opening is covered by a sealing plate 10. The sealing plate 10 has rotation slots 101 corresponding to the hinge 3 and the wire guide 4, respectively. The door hinge 2 and the hinge 3 can be rotated so that the first opening of the main bottom box 1 is directly opposite the hinge 3. In this embodiment, three sealing plates 10 are used and spaced apart to form the rotation slots 101.
[0035] The main bottom box 1 is located on the right side of the back of the door housing. The first opening is flush with the side of the door housing, and the second opening is flush with the back of the door housing. The hinge 3 and the wire guide 4 are fixedly located on the right side of the front of the door housing, and are arranged vertically at intervals. The power output wire 80 is routed near the wire guide 4 and passes through the inlet hole 43 of the wire groove 41. The power output wire 80 passes through the outlet hole 42 along the wire groove 41 and enters the main bottom box 1. The power inlet wire 90 is routed near the main bottom box 1 and passes through the main through hole 11. The power output wire 80 and the power inlet wire 90 are connected inside the main bottom box 1. Figure 12 .
[0036] In the above structure, before the foaming process of door 9, a power supply line 90 is pre-installed inside the door shell, and a main bottom box 1 is pre-installed on the door shell. The power supply line 90 is then introduced into the main bottom box 1 through the main through hole 11. Similarly, before the foaming process of cabinet 8, a power output line 80 is pre-installed inside the cabinet shell, and a cabinet bottom box 5 is pre-installed on the cabinet shell. The power output line 80 is introduced into the cabinet bottom box 5 through the cabinet wire through hole 51. It should be noted that the cabinet bottom box 5 is not a mandatory structure; an opening can also be pre-drilled on the right side of the front of the cabinet shell, through which the power output line 80 can be directly led out of the cabinet 8. Then, the door 9 and cabinet 8 are foamed separately. Next, the door hinge 2 is fixedly installed on the main base box 1, the box hinge 3 is fixedly installed on the box body 8, and the power supply line 80 is routed along the cable guide 4, which is then fixedly installed on the box body 8. Finally, the hinge pin 31 of the box hinge 3 is assembled with the shaft hole 21 of the door hinge 2, thereby making the door hinge 2 and the box hinge 3 rotatably connected. At this time, the power supply line 80 and the power supply line 90 are both located in the main base box 1 and are close to each other. By connecting the power supply line 80 and the power supply line 90 through the terminal blocks at their ends, the connection and assembly of the power supply lines of the electrical component 91 can be easily completed.
[0037] In this embodiment, the box hinge 3 is located above the wire guide 4, and the hinge shaft 31 is vertically arranged away from the wire guide 4. This makes it easier for the shaft hole 21 of the door hinge 2 to be fitted onto the hinge shaft 31 from top to bottom, ensuring the quick assembly of the door hinge 2 and the box hinge 3.
[0038] In the above structure, the door 9 is movably connected to the housing 8 via the door hinge 2 and the housing hinge 3. Simultaneously, the power supply cable 80 is routed via the cable guide 4, and the power supply cable 90 is routed via the main bottom box 1. This ensures that the power supply cable 80 and the power supply cable 90 are each positioned and laid out, and then converge in the same cavity after the door 9 and housing 8 are assembled and connected, facilitating quick, convenient, and reliable connection.
[0039] For details, please refer to the following: Figure 11 In this embodiment, the wire guide 4 specifically adopts the following structure: the wire guide 4 has a third plate portion 44 and a wire guide arm 45 located on the third plate portion 44. The wire groove 41 is provided on the side of the wire guide arm 45 away from the box hinge 3. The through hole 42 is provided at the end of the wire guide arm 45 and is arranged perpendicular to the wire guide arm 45. The through hole 43 is provided at one end of the wire guide arm 45 that connects to the third plate portion 44. The third plate portion 44 has a third mounting hole 46 for fixing the wire guide 4. The wire guide 4 with the above structure is simple and similar to the structure of the box hinge 3 with the second hinge plate 32 and the shaft arm 33 described below. This facilitates manufacturing, and the overall structure is compact and easy to assemble.
[0040] For details, please refer to the following: Figures 5 to 8 In this embodiment, the door hinge 2 specifically adopts the following structure: the door hinge 2 has a first hinge plate 22 and a first block 23 located on the first hinge plate 22. The shaft hole 21 is provided on the first block 23 and arranged parallel to the first hinge plate 22. The first hinge plate 22 has a first mounting hole 231. The main base box 1 has a first mounting post hole 13 corresponding to the first mounting hole 231. The door hinge 2 is fastened to the main base box 1 through the first mounting hole 231, the first mounting post hole 13 and bolts.
[0041] For details, please refer to the following: Figures 5 to 8 In this embodiment, the box hinge 3 specifically adopts the following structure: the box hinge 3 has a second hinge plate 32 and a shaft arm 33 located on the second hinge plate 32, the hinge shaft 31 is located at the end of the shaft arm 33 and is arranged perpendicular to the shaft arm 33, and the second hinge plate 32 has a second mounting hole 34 for fixing the box hinge 3.
[0042] For further details, please refer to [link / reference]. Figures 5 to 8 In the refrigerator door hinge assembly of this embodiment, the door hinge 2 further includes a second part 24. The second part 24 and the first part 23 are respectively located on both sides of the shaft arm 33 of the hinge 3, so that the shaft arm 33 of the hinge 3 is limited between the second part 24 and the first part 23. The second part 24 has a second part through hole 25. The main bottom box 1 has a second part post hole 15 corresponding to the second part through hole 25. The first hinge plate 22 has a second part connecting hole 26 corresponding to the second part through hole 25. The bolt passes through the second part through hole 25 of the second part 24, the second part connecting hole 26 of the first hinge plate 22, and the second part post hole 15 of the main bottom box 1 in sequence, so that the second part 24, the first hinge plate 22 and the main bottom box 1 are fastened together. The above structure is reinforced and supported by the two sides of the box hinge 3 through the second part 24, which improves the smoothness of the hinge assembly rotation and prevents the door 9 from settling due to long-term use.
[0043] For further details, please refer to [link / reference]. Figure 9 and Figure 10 In the refrigerator door hinge assembly of this embodiment, the first hinge plate 22 of the door hinge 2 also has a limiting groove 20 near the shaft hole 21. The shaft arm 33 of the box hinge 3 has an arc-shaped structure that bends towards the limiting groove 20. The outer wall of the end of the shaft arm 33 has a protruding part 30 that inserts into the limiting groove 20. The limiting groove 20 restricts the range of motion of the protruding part 30, thereby limiting the rotation angle of the door hinge 2 relative to the box hinge 3. Figure 10 The diagram shown illustrates the position of the door hinge 2 when the door 9 is fully opened to a certain angle. Figure 10The protruding part 30 described herein blocks the limiting groove 20, thereby preventing the door 9 from being opened excessively.
Claims
1. A refrigerator door hinge assembly, comprising a main base box (1), a door hinge (2), and a cabinet hinge (3); the main base box (1) has a receiving cavity, the door hinge (2) is installed in the main base box (1) and has a shaft hole (21), the cabinet hinge (3) has a hinge pin (31) located in the main base box (1), the hinge pin (31) is inserted into the shaft hole (21) to form a hinged connection between the door hinge (2) and the cabinet hinge (3); characterized in that: It also includes a wire guide (4), which is located near the box hinge (3). The wire guide (4) has a wire groove (41) that goes into the main bottom box (1). One end of the wire groove (41) has a through hole (42) located inside the main bottom box (1), and the other end has a through hole (43) located outside the main bottom box (1). The main bottom box (1) has a main through hole (11) near the through hole (42).
2. The refrigerator door through-hing assembly according to claim 1, characterized in that: The wire guide (4) has a third plate (44) and a wire guide arm (45) located on the third plate (44). The wire groove (41) is provided on the side of the wire guide arm (45) away from the box hinge (3). The through hole (42) is provided at the end of the wire guide arm (45) and is arranged perpendicular to the wire guide arm (45). The through hole (43) is provided at one end of the wire guide arm (45) connected to the third plate (44). The third plate (44) has a third mounting hole (46) for fixing the wire guide (4).
3. A refrigerator door hinge assembly according to claim 1, characterized in that: It also includes a box bottom (5), which is located near the wire guide (4). The box bottom (5) has an opening for passing through the wire guide (43) directly opposite the wire guide (4). The box bottom (5) also has a box wire through hole (51) on its wall panel.
4. A refrigerator door through-hing assembly according to claim 1, characterized in that: The door hinge (2) has a first hinge plate (22) and a first block (23) located on the first hinge plate (22). The shaft hole (21) is provided on the first block (23) and arranged parallel to the first hinge plate (22). The first hinge plate (22) has a first mounting hole (231). The main base box (1) has a first mounting post hole (13) corresponding to the first mounting hole (231). The door hinge (2) is fastened to the main base box (1) through the first mounting hole (231), the first mounting post hole (13) and bolts.
5. A refrigerator door through-hing assembly according to claim 4, characterized in that: The box hinge (3) has a second hinge plate (32) and a shaft arm (33) located on the second hinge plate (32). The hinge shaft (31) is located at the end of the shaft arm (33) and is arranged perpendicular to the shaft arm (33). The second hinge plate (32) has a second mounting hole (34) for fixing the box hinge (3).
6. A refrigerator door through-hing assembly according to claim 5, characterized in that: The door hinge (2) also includes a second part (24), which is located on both sides of the shaft arm (33) of the box hinge (3) respectively, so that the shaft arm (33) of the box hinge (3) is limited between the second part (24) and the first part (23). The second part (24) has a second part through hole (25), and the main bottom box (1) has a second part post hole (15) corresponding to the second part through hole (25). The first hinge plate (22) has a second part connecting hole (26) corresponding to the second part through hole (25). The bolt passes through the second part through hole (25) of the second part (24), the second part connecting hole (26) of the first hinge plate (22), and the second part post hole (15) of the main bottom box (1) in sequence, so that the second part (24), the first hinge plate (22) and the main bottom box (1) are fastened together.
7. A refrigerator door through-hing assembly according to claim 5, characterized in that: The first hinge plate (22) of the door hinge (2) also has a limiting groove (20) near the shaft hole (21). The shaft arm (33) of the box hinge (3) has an arc-shaped structure that bends toward the limiting groove (20). The outer wall of the end of the shaft arm (33) has a protruding part (30) inserted into the limiting groove (20). The limiting groove (20) restricts the range of motion of the protruding part (30), thereby restricting the rotation angle of the door hinge (2) relative to the box hinge (3).
8. A refrigerator door through-hing assembly according to any one of claims 1 to 7, characterized in that: The main bottom box (1) has an L-shaped shell structure with a first opening and a second opening. The second opening is covered by a sealing plate (10). The sealing plate (10) has a rotation space (101) corresponding to the box hinge (3) and the wire guide (4). The door hinge (2) and the box hinge (3) can be rotated so that the first opening of the main bottom box (1) is directly opposite the box hinge (3).
9. A refrigerator comprising a cabinet (8) and a door (9), the door (9) being hinged to the cabinet (8) by a door hinge, the door (9) comprising a door shell and insulation material filled within the door shell, the door (9) being provided with an electrical component (91), the electrical component (91) being connected to a power input line (90), the power input line (90) being arranged along the interior of the door shell, the cabinet (8) comprising a cabinet shell and insulation material filled within the cabinet shell, the cabinet shell being provided with a power output line (80), characterized in that: The door hinge adopts the refrigerator door wire-passing hinge assembly as described in claim 8. The main bottom box (1) is located on the left or right side of the back of the door housing. The first opening is flush with the side of the door housing and the second opening is flush with the back of the door housing. The box hinge (3) and the wire-passing part (4) are fixedly located on the left or right side of the front of the box housing, and the box hinge (3) and the wire-passing part (4) are arranged vertically at intervals. The power supply line (80) is laid near the wire-passing part (4) and passes through the wire groove (41) through the inlet hole (43). The power supply line (80) passes through the wire groove (41) through the outlet hole (42) and enters the main bottom box (1). The power supply line (90) is laid near the main bottom box (1) and passes through the main through hole (11). The power supply line (80) and the power supply line (90) are connected in the main bottom box (1).
10. A refrigerator according to claim 9, characterized in that: The refrigerator door wiring hinge assembly also includes a cabinet bottom box (5), which is located inside the cabinet near the wiring component (4). The cabinet bottom box (5) has an exit opening opposite the through hole (43) of the wiring component (4). The cabinet bottom box (5) also has a cabinet wire through hole (51) on its wall panel. The power supply wire (80) passes through the cabinet wire through hole (51) into the cabinet bottom box (5) and enters the through hole (43) of the wiring component (4) along the through opening of the cabinet bottom box (5).