Automobile door panel wire harness self-locking structure
By designing a self-locking structure for automotive door panel wiring harnesses, and utilizing the cooperation of L-shaped toothed plates, gears, and movable toothed plates, the self-locking function is achieved. This solves the problems of difficult alignment and vibration loosening of traditional connectors, ensuring stable connection of the wiring harness under vibration conditions and improving the reliability of the electrical system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FULL ON KUNSHAN AUTOMOTIVE PARTS CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional automotive door panel wiring harness connectors require precise alignment and significant insertion force, and are susceptible to loosening due to vibration, which can affect the normal operation of the electrical system.
A self-locking structure for automotive door panel wiring harnesses was designed. Through the cooperation of an L-shaped toothed plate, gears, a movable toothed plate, a rotating plate, and an auxiliary plate, the self-locking function is achieved to prevent loosening. Springs and guide rods are used to assist in flipping, thereby improving stability.
It enables rapid assembly of automotive door panel wiring harnesses and maintains stable connections under vibration conditions, ensuring the normal operation of the electrical system and avoiding loosening and jamming of connectors.
Smart Images

Figure CN224204472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically to a self-locking structure for automotive door panel wiring harnesses. Background Technology
[0002] Automotive wiring harnesses are the core of a car's electrical network; without them, there is no automotive electrical system. A wiring harness is an assembly consisting of copper-plated contact terminals crimped to wires and cables, then covered with a plastic insulator or an outer metal casing, and bundled together to form a connected circuit. Automotive door panel wiring harnesses are a crucial part connecting various electronic components inside the door to the car's main electrical system. They are responsible for transmitting electrical energy and data signals. Currently, automotive door panel wiring harnesses are typically connected using connectors, including sockets and plugs, which work together to achieve electrical connections. However, traditional connectors require precise alignment and significant insertion force, which makes assembly and maintenance inconvenient. Furthermore, connectors are prone to loosening under vibration, leading to poor contact and affecting the normal operation of the electrical system. Utility Model Content
[0003] The purpose of this invention is to provide a self-locking structure for automotive door panel wiring harnesses to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-locking structure for automotive door panel wiring harnesses, including a plug and a connector. The plug is snapped into the connector. A protective plate is fixedly connected to the top of the connector. A movable toothed plate is slidably connected to the connector. An L-shaped toothed plate is fixedly connected to the top of the plug. A guide rod is fixedly connected inside the connector. An auxiliary plate is rotatably connected to the outer surface of the guide rod. A positioning plate is fixedly connected to the top of the connector. A rotating plate one is rotatably connected inside the positioning plate. A rotating plate two is rotatably connected to one side of the rotating plate one. A positioning rod is rotatably connected inside the protective plate. A gear is fixedly connected to the outer surface of the positioning rod. A slider is fixedly connected to one side of the rotating plate two. A connecting plate is fixedly connected above the movable toothed plate. A groove is formed inside the connecting plate. A spring is provided outside the rotating plate two.
[0005] As a further preferred embodiment of this technical solution, a cable is fixedly connected to one side of the plug, a limiting groove is formed inside the connector, and a limiting block is fixedly connected above the plug.
[0006] As a further preferred embodiment of this technical solution, the limiting block is slidably connected in the limiting groove, and the auxiliary plate overlaps with the back of the limiting block.
[0007] As a further preferred embodiment of this technical solution, the protective plate is provided with bolts, and the protective plate is connected to the connecting plate by the bolts.
[0008] As a further preferred embodiment of this technical solution, the L-shaped toothed plate meshes with the gear, the movable toothed plate meshes with the gear, and the slider is slidably connected in the groove.
[0009] As a further preferred embodiment of this technical solution, the second rotating plate is connected to the first rotating plate by a spring, and an overlapping column is fixedly connected to the front of the positioning plate, with the second rotating plate overlapping the overlapping column.
[0010] This utility model provides a self-locking structure for automotive door panel wiring harnesses, which has the following beneficial effects:
[0011] (1) This utility model sets up an L-shaped toothed plate, a gear, a movable toothed plate, a second rotating plate, a first rotating plate, and an auxiliary plate. When the connector moves, the L-shaped toothed plate above will contact the gear, and the gear will rotate around the positioning rod. Since the gear meshes with the movable toothed plate, the movable toothed plate and the L-shaped toothed plate will move relative to each other. When the second rotating plate is subjected to tension, the second rotating plate and the first rotating plate will rotate inside the positioning plate. When the second rotating plate rotates to the appropriate position, the first rotating plate will drive the auxiliary plate to flip around the guide rod. After the auxiliary plate flips, it will overlap with one side of the limiting block. The car door panel wiring harness, through the cooperation between the L-shaped toothed plate, the gear, and the movable toothed plate, enables the auxiliary plate and the limiting block to achieve a self-locking function, while the connector and the plug can achieve a quick assembly function, avoiding loosening when affected by vibration, thereby ensuring the normal operation of the electrical system and improving the stability of the car door panel wiring harness after fixing.
[0012] (2) By setting a spring and a guide rod, when the second rotating plate is subjected to tension, the second rotating plate and the first rotating plate will rotate inside the positioning plate. When the second rotating plate rotates, it will cause the spring to deform. The auxiliary plate will rotate around the guide rod as the first rotating plate rotates. This allows the spring and the auxiliary plate to play a certain auxiliary role in the rotation of the auxiliary plate, thus avoiding the phenomenon of jamming when the auxiliary plate is flipped. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a three-dimensional cross-sectional structural diagram of the connector of this utility model;
[0015] Figure 3 This is a three-dimensional cross-sectional structural diagram of the protective plate of this utility model;
[0016] Figure 4 This is a three-dimensional structural diagram of the positioning plate of this utility model.
[0017] In the diagram: 1. Plug; 2. Connector; 3. Protective plate; 4. Cable; 5. Limiting block; 6. Guide rod; 7. Auxiliary plate; 8. Limiting groove; 9. L-shaped toothed plate; 10. Positioning rod; 11. Gear; 12. Bolt; 13. Positioning plate; 14. Rotating plate one; 15. Rotating plate two; 16. Spring; 17. Connecting plate; 18. Moving toothed plate; 19. Slide groove; 20. Sliding block; 21. Overlapping column. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0019] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown, in this embodiment, the self-locking structure of the car door panel wiring harness includes a plug 1 and a connector 2. The plug 1 is snapped into the connector 2. A protective plate 3 is fixedly connected to the top of the connector 2. A movable toothed plate 18 is slidably connected to the connector 2. An L-shaped toothed plate 9 is fixedly connected to the top of the plug 1. A guide rod 6 is fixedly connected inside the connector 2. An auxiliary plate 7 is rotatably connected to the outer surface of the guide rod 6. A positioning plate 13 is fixedly connected to the top of the connector 2. A rotating plate 14 is rotatably connected inside the positioning plate 13. A rotating plate 25 is rotatably connected to one side of the rotating plate 14. A positioning rod 10 is rotatably connected inside the protective plate 3. A gear 11 is fixedly connected to the outer surface of the positioning rod 10. A slider 20 is fixedly connected to one side of the rotating plate 25. A connecting plate 17 is fixedly connected to the top of the movable toothed plate 18. A groove 19 is opened inside the connecting plate 17. A spring 16 is provided outside the rotating plate 25.
[0020] like Figure 2 and Figure 4 As shown, a cable 4 is fixedly connected to one side of the connector 1, a limiting groove 8 is opened in the connector 2, a limiting block 5 is fixedly connected to the top of the connector 1, the limiting block 5 is slidably connected in the limiting groove 8, the auxiliary plate 7 overlaps with the back of the limiting block 5, a bolt 12 is provided in the protective plate 3, the protective plate 3 is connected to the connecting plate 17 through the bolt 12, the L-shaped toothed plate 9 meshes with the gear 11, the movable toothed plate 18 meshes with the gear 11, the slider 20 is slidably connected in the slide groove 19, the rotating plate 2 15 is connected to the rotating plate 1 14 through the spring 16, the front of the positioning plate 13 is fixedly connected with the overlapping post 21, and the rotating plate 2 15 overlaps with the overlapping post 21;
[0021] By setting bolt 12, when the connecting plate 17 moves to the appropriate position along with the moving toothed plate 18, the protective plate 3 will be threadedly connected to the connecting plate 17 through bolt 12, so that bolt 12 can lock the position of the moving toothed plate 18 and prevent the moving toothed plate 18 from loosening under the influence of external force.
[0022] By setting the overlapping column 21, when the rotating plate 15 is affected by the pushing or pulling force, the rotating plate 15 will swing within the positioning plate 13. After swinging, the rotating plate 15 will overlap with the overlapping column 21, so that the overlapping column 21 provides a certain support for the swing of the rotating plate 15 and avoids the rotating plate 15 from bumping during swing.
[0023] This utility model provides a self-locking structure for automotive door panel wiring harnesses, the specific working principle of which is as follows:
[0024] When the connector 1 is connected to the connector 2, the connector 1 can slide in the limiting groove 8 through the limiting block 5. The L-shaped toothed plate 9 above the connector 1 will contact the gear 11, and the gear 11 will rotate around the positioning rod 10. Since the gear 11 meshes with the moving toothed plate 18, the moving toothed plate 18 and the L-shaped toothed plate 9 will move relative to each other. The moving toothed plate 18 will drive the connecting plate 17 to move. The slider 20 will slide in the sliding groove 19. When the rotating plate 2 15 is affected by the tension, the rotating plate 2 15 and the rotating plate 1 14 will rotate in the positioning plate 13. When the rotating plate 2 15 rotates to the appropriate position, the rotating plate 14 will drive the auxiliary plate 7 to flip around the guide rod 6. After the auxiliary plate 7 flips, it will overlap with one side of the limiting block 5. Then the protective plate 3 will be threadedly connected to the connecting plate 17 through the bolt 12.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A self-locking structure for automotive door panel wiring harnesses, comprising a connector (1) and a plug (2), characterized in that: The plug (1) is snapped into the connector (2). A protective plate (3) is fixedly connected to the top of the connector (2). A movable toothed plate (18) is slidably connected to the connector (2). An L-shaped toothed plate (9) is fixedly connected to the top of the plug (1). A guide rod (6) is fixedly connected inside the connector (2). An auxiliary plate (7) is rotatably connected to the outer surface of the guide rod (6). A positioning plate (13) is fixedly connected to the top of the connector (2). A rotatably connected plate (13) is rotatably connected inside the positioning plate (13). A rotating plate (14) is connected to a rotating plate (15) on one side of the rotating plate (14). A positioning rod (10) is rotatably connected inside the protective plate (3). A gear (11) is fixedly connected to the outer surface of the positioning rod (10). A slider (20) is fixedly connected to one side of the rotating plate (15). A connecting plate (17) is fixedly connected above the moving toothed plate (18). A groove (19) is opened inside the connecting plate (17). A spring (16) is provided outside the rotating plate (15).
2. The self-locking structure for automotive door panel wiring harnesses according to claim 1, characterized in that: A cable (4) is fixedly connected to one side of the plug (1), a limiting groove (8) is opened in the connector (2), and a limiting block (5) is fixedly connected above the plug (1).
3. The self-locking structure of the automotive door panel wiring harness according to claim 2, characterized in that: The limiting block (5) is slidably connected in the limiting groove (8), and the auxiliary plate (7) overlaps with the back of the limiting block (5).
4. The self-locking structure of the automotive door panel wiring harness according to claim 1, characterized in that: The protective plate (3) is provided with bolts (12), and the protective plate (3) is connected to the connecting plate (17) by bolts (12).
5. The self-locking structure of the automotive door panel wiring harness according to claim 1, characterized in that: The L-shaped toothed plate (9) meshes with the gear (11), the movable toothed plate (18) meshes with the gear (11), and the slider (20) is slidably connected in the groove (19).
6. The self-locking structure of the automotive door panel wiring harness according to claim 1, characterized in that: The second rotating plate (15) is connected to the first rotating plate (14) via a spring (16). The front of the positioning plate (13) is fixedly connected to an overlapping column (21), and the second rotating plate (15) overlaps with the overlapping column (21).