Anti-loose automobile wire harness

Abstract

The utility model discloses an anti -loose type automobile wire harness, including the joint of card joint structure connection of insert piece, the insert piece is T hollow structure shape, the joint is square bucket type hollow shape, the card joint structure includes L shaped poking lever and support shaft, and the both sides of insert piece are provided with inclined slot, and the adjacent position of both sides wall of joint is provided with movable mouth, and the movable mouth is provided with L shaped poking lever, and L shaped poking lever bending department is through support shaft and is rotatoryly connected with the joint in, and the both sides wall of insert piece near the center position all is provided with the integral moulding arc convex, and L shaped poking lever insertion end sets up in inclined slot, and leans against arc convex, and this anti -loose type automobile wire harness is through the design of card joint structure, realized the firm connection and convenient disassembly between insert piece and joint, improved the use convenience and reliability of automobile wire harness, and still through the spring rebound force effect, compared with the service life of material self -elasticity card joint mode and obtained the remarkable increase.

Description

Technical Field

[0001] This utility model relates to the field of wiring harnesses, specifically an anti-loosening automotive wiring harness. Background Technology

[0002] Automotive wiring harnesses are the core of a vehicle's electrical network; without them, there is no automotive electrical system. They consist of copper-plated contact terminals (connectors) crimped to wires and cables, then covered with a molded insulator or an outer metal casing, and finally bundled together to form a wiring harness that connects the circuitry. The primary function of automotive wiring harnesses is to connect the vehicle's electrical system, enabling the transmission of power and signals, and ensuring the proper functioning of all electrical components.

[0003] The wire harness is assembled by inserting plugs and connectors. Traditional snap-fit ​​connectors use their own elastic plastic material for snap-fit, and the elasticity of plastic parts is prone to aging, resulting in a short lifespan. In addition, the protrusions of the snap-fit ​​connectors are not obvious, and repeated insertion and removal can easily cause deformation and loosening, thus affecting their normal service life. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-loosening automotive wiring harness that avoids the cumbersome traditional bolt screwing method, makes the operation simpler and more convenient, and greatly facilitates the assembly and subsequent disassembly and maintenance work of workers, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-loosening automotive wiring harness, comprising a connector connected by a snap-fit ​​structure, wherein the connector is T-shaped hollow; and the connector is square-shaped hollow.

[0006] The snap-fit ​​structure includes an L-shaped lever and a support shaft. The plug has inclined grooves on both sides, and movable openings are opened at adjacent positions on both sides of the connector. An L-shaped lever is installed in the movable opening. The bent part of the L-shaped lever is rotatably connected to the connector through the support shaft. Both sides of the plug near the center have integrally formed arc-shaped protrusions. The insertion end of the L-shaped lever is set in the inclined groove and abuts against the arc-shaped protrusion. The other end passes through the movable opening. A compression spring is fixedly connected to the side wall of the insertion end of the L-shaped lever. The other end of the compression spring is fixedly connected to the inner side wall of the connector.

[0007] The plugin is equipped with a positioning structure.

[0008] Preferably, both ends of the L-shaped lever are rounded, and the connector can be made of transparent plastic.

[0009] Preferably, the plug insertion end is equipped with a terminal block, and side blocks are fixedly connected to both sides of the terminal block. The plug has countersunk holes on both sides of the insertion end, and the side blocks have reserved screw holes at the countersunk hole positions. Several plug rods are fixedly connected to the terminal block near the connector, and several matching holes are opened inside the connector.

[0010] Preferably, the positioning structure includes a sleeve and a guide plate. The sleeve is fixedly connected to the inner surface of the plug-in, and the sleeve is fixedly inserted into the plug-in insertion end. The bottom and top of the plug-in are both fixedly connected to the guide plate, and the top and bottom of the sleeve are both provided with guide grooves.

[0011] Preferably, the guide plate is inserted in an arc shape, and the uninserted end is in the shape of a circular plate. The uninserted end of the guide plate has several elongated cavities.

[0012] Preferably, wedge-shaped rubber strips are fixedly connected to both sides of the insertion end of the plug, and hook-shaped long ribs are fixedly connected to both sides of the insertion sleeve located at the embedded surface of the connector.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The movable opening can limit the continuous rotation of the L-shaped lever, thereby effectively preventing it from falling off. This anti-loosening automotive wiring harness, through the design of the snap-fit ​​structure, achieves a stable connection and convenient disassembly between the plug and the connector, improving the ease of use and reliability of the automotive wiring harness. Furthermore, through the action of the spring rebound force, the service life is significantly increased compared to the material's own elastic snap-fit ​​method.

[0015] The design of hook-shaped elongated wedge-shaped rubber strips fixedly connected to both sides of the insert position on the inner embedded surface of the connector provides a certain elastic squeezing force when the insert is inserted into the connector. After the insert is fully inserted into the connector, it cooperates with the wedge-shaped rubber strip to make the insertion into the correct position with a clear tactile feedback. This can remind the operator to reach the designated position, prevent the possibility of deformation of the insert 1 due to violent insertion, and extend its service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear-view structure of this utility model;

[0018] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at section AA;

[0019] Figure 4 This is a schematic diagram of a partial three-dimensional structure inside the connector of this utility model;

[0020] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure at section BB;

[0021] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Insert; 2. Connector; 21. Connecting hole; 3. Snap-fit ​​structure; 31. L-shaped lever; 32. Movable opening; 33. Support shaft; 34. Compression spring; 35. Arc-shaped protrusion; 36. Slanted groove; 4. Positioning structure; 41. Insert sleeve; 42. Guide plate; 43. Long cavity; 44. Guide groove; 45. Hook-shaped long rib; 46. Wedge-shaped rubber strip; 5. Terminal block; 6. Side block; 7. Reserved screw hole; 8. Countersunk hole; 9. Insert rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 6 The diagram shows an anti-loosening automotive wiring harness, including a plug 1 connected to a connector 2 via a snap-fit ​​structure 3. The plug 1 has a T-shaped hollow structure, and the connector 2 has a square, bucket-shaped hollow structure. The snap-fit ​​structure 3 includes an L-shaped lever 31 and a support shaft 33. The plug 1 has inclined grooves 36 on both sides, and the connector 2 has movable openings 32 on adjacent positions on both sides. The L-shaped lever 31 is installed in the movable opening 32. The bent part of the L-shaped lever 31 is rotatably connected to the connector 2 via the support shaft 33. The plug 1 has an integrally formed arc-shaped protrusion 35 on both sides near the center. The insertion end of the L-shaped lever 31 is located in the inclined groove 36 and abuts against the arc-shaped protrusion 35. The other end passes through the movable opening 32. A compression spring 34 is fixedly connected to the side wall of the insertion end of the L-shaped lever 31. The other end of the compression spring 34 is fixedly connected to the inner side wall of the connector 2.

[0025] It is worth noting that during the snap-fit ​​process, when the plug-in 1 is aligned with the connector 2 and inserted, the insertion end of the L-shaped lever 31 gradually moves outward under the initial collision with the arc-shaped protrusion 35. As the plug-in 1 continues to move, the L-shaped lever 31 is guided by the rebound force of the compression spring 34 and positioned in the inclined groove 36, abutting against the arc-shaped protrusion 35. At this time, the plug-in 1 and the connector 2 are stably connected. During the disassembly process, simply manually move the other end of the L-shaped lever 31 to gradually disengage its insertion end from the snap-fit ​​state between the inclined groove 36 and the arc-shaped protrusion 35. As the L-shaped lever 31 swings, the plug-in 1 can be easily pulled out of the connector 2, achieving convenient disassembly.

[0026] In summary, pulling plug 1 directly outward will cause the left-side L-shaped lever 31 to rotate counterclockwise, and the right-side L-shaped lever 31 to rotate clockwise, as shown. Figure 2 As shown, the movable opening 32 can limit the continuous rotation of the L-shaped lever 31, thereby effectively preventing it from falling off. This anti-loosening automotive wiring harness achieves a stable connection and convenient disassembly between the plug 1 and the connector 2 through the design of the snap-fit ​​structure 3, which improves the ease of use and reliability of the automotive wiring harness. In addition, the service life is significantly increased compared with the material's own elastic snap-fit ​​method due to the rebound force of the compression spring 34.

[0027] Please see Figure 1 , Figure 3 and Figure 4 The L-shaped lever 31 has rounded ends, and the connector 2 can be made of transparent plastic to facilitate observation of the engagement between the plug 1 and the connector 2. Furthermore, the rounded design of the L-shaped lever 31 not only improves its structural strength but also helps reduce friction during operation, making it smoother. The transparent plastic connector 2 is not only lightweight and durable but also allows for a clear view of the working status of the internal engagement structure, facilitating user inspection and maintenance.

[0028] Please refer to Figure 3 The plug-in 1 has a terminal block 5 installed inside its insertion end. Side blocks 6 are fixedly connected to both sides of the terminal block 5. Countersunk holes 8 are opened on both sides of the plug-in 1 near the insertion end. The side blocks 6 have reserved screw holes 7 at the countersunk holes 8. Several plug rods 9 are fixedly connected to the terminal block 5 near the connector 2. Several matching holes 21 are opened in the connector 2. The plug rods 9 are set to correspond to the holes 21. When the plug-in 1 is fully inserted into the connector 2, the plug rods 9 are just inserted into the holes 21. At the same time, the terminal block 5 can be easily fixed to the plug-in 1 by bolts or other fasteners through the cooperation of the side blocks 6 and the countersunk holes 8, as well as the reserved screw holes 7, ensuring the stability and reliability of the terminal block 5 during use.

[0029] See Figure 4 and Figure 5 The plug-in 1 is provided with a positioning structure 4, which includes a sleeve 41 and a guide plate 42. The sleeve 41 is fixedly connected to the inner surface of the plug-in 1. The sleeve 41 is fixedly inserted into the insertion end of the plug-in 1. The bottom and top of the plug-in 1 are both fixedly connected with guide plates 42. The top and bottom of the sleeve 41 are both provided with guide grooves 44.

[0030] The guide groove 44 and the guide plate 42 slide together. When the plug 1 needs to be inserted into the connector 2, the guide plate 42 slides along the guide groove 44. This design not only helps in the positioning of the plug 1 during insertion, but also guides the plug 1 to be correctly inserted into the connector 2 to a certain extent, avoiding misalignment or jamming. The design of the sleeve 41 enhances the structural strength of the plug 1. At the same time, the cooperation between the sleeve 41 and the connector 2 further improves the stability of the connection between the plug 1 and the connector 2. The cooperation between the guide plate 42 and the guide groove 44 makes the insertion of the plug 1 into the connector 2 smoother, reducing the risk of damage caused by improper operation.

[0031] See Figure 5 The guide plate 42 is inserted in an arc shape, and the uninserted end is in the shape of a round plate. The uninserted end of the guide plate 42 has several elongated cavities 43.

[0032] The elongated cavity 43 design helps the fingers to contact friction, preventing slippage during extraction and ensuring ease of operation.

[0033] Please see Figure 4 and Figure 6 The two side walls of the insertion end of the plug 1 are fixedly connected with wedge-shaped rubber strips 46. The two side walls of the sleeve 41 located inside the embedded surface of the connector 2 are fixedly connected with hook-shaped long ribs 45. The design of the wedge-shaped rubber strips 46 can provide a certain elastic squeezing force when the plug 1 is inserted into the connector 2. After the plug 1 is fully inserted into the connector 2, it can cooperate with the wedge-shaped rubber strips 46 to make the insertion into the appropriate position have a clear tactile feedback. This can remind the operator to reach the designated position, prevent the possibility of deformation of the plug 1 due to violent insertion, and extend its service life.

[0034] 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 type of automotive wiring harness with anti-loosening features, comprising a connector (2) connected to a plug (1) via a snap-fit ​​structure (3), characterized in that, The plug (1) has a T-shaped hollow structure; the connector (2) has a square bucket-shaped hollow shape; The snap-fit ​​structure (3) includes an L-shaped lever (31) and a support shaft (33). The plug (1) has inclined grooves (36) on both sides. The connector (2) has movable openings (32) on adjacent positions on both sides. An L-shaped lever (31) is provided in the movable opening (32). The bent part of the L-shaped lever (31) is rotatably connected to the connector (2) through the support shaft (33). The plug (1) has integrally formed arc-shaped protrusions (35) on both sides near the center. The L-shaped lever (31) is inserted into the inclined groove (36) and abuts against the arc-shaped protrusion (35). The other end passes through the movable opening (32). A compression spring (34) is fixedly connected to the side wall of the L-shaped lever (31) insertion end. The other end of the compression spring (34) is fixedly connected to the inner side wall of the connector (2). The plug-in (1) is provided with a positioning structure (4).

2. The anti-loosening automotive wiring harness according to claim 1, characterized in that: The L-shaped lever (31) has rounded ends, and the connector (2) can be made of transparent plastic.

3. The anti-loosening automotive wiring harness according to claim 1, characterized in that: The plug (1) has a terminal block (5) installed inside the insertion end. The terminal block (5) is fixedly connected to both sides of the side block (6). The plug (1) has countersunk holes (8) on both sides of the insertion end. The side block (6) has a reserved screw hole (7) at the countersunk hole (8). The terminal block (5) is fixedly connected to several plug rods (9) near the connector (2). The connector (2) has several matching holes (21).

4. The anti-loosening automotive wiring harness according to claim 1, characterized in that: The positioning structure (4) includes a sleeve (41) and a guide plate (42). The sleeve (41) is fixedly connected to the inner surface of the plug (1). The sleeve (41) is fixedly inserted into the insertion end of the plug (1). The bottom and top of the plug (1) are both fixedly connected to the guide plate (42). The top and bottom of the sleeve (41) are both provided with guide grooves (44).

5. The anti-loosening automotive wiring harness according to claim 4, characterized in that: The guide plate (42) is inserted in an arc shape, and the uninserted end is in the shape of a round plate. The uninserted end of the guide plate (42) has several elongated cavities (43).

6. The anti-loosening automotive wiring harness according to claim 4, characterized in that: The insert (1) has wedge-shaped rubber strips (46) fixedly connected to both sides of the insertion end, and the sleeve (41) is located in the inner embedded surface of the connector (2) with hook-shaped long ribs (45) fixedly connected to both sides of the sleeve.

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