A type of automotive wiring harness fixing clamp

Abstract

This utility model relates to the field of automotive wiring harness fixing, and specifically to an automotive wiring harness fixing clamp. The utility model includes a wiring harness body and a fixing clamp assembly. The fixing clamp assembly includes a metal clamp, a rubber sleeve, and screws. The metal clamp has a first wiring harness through-hole inside, and the rubber sleeve has a second wiring harness through-hole inside. The wiring harness body passes through both the first and second through-holes. The inner side of the second through-hole has raised ribs, and the outer side of the rubber sleeve has a limiting groove extending outwards from the center. The left side of the metal clamp is fitted into the limiting groove, and the right side of the metal clamp is fixed to an external frame by screws. The rubber sleeve effectively absorbs vibrations generated during vehicle operation, ensuring the wiring harness's shock absorption performance, reducing damage to the high-voltage wiring harness from vibrations, improving the wiring harness's durability and reliability, and without affecting the wiring harness's heat dissipation performance.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness fixing, and specifically to an automotive wiring harness fixing clamp. Background Technology

[0002] With the rapid development of the new energy vehicle industry, high-voltage wiring harnesses, as core connecting components between power batteries, drive motors, and electronic control systems, are directly related to the overall vehicle safety performance in terms of operational reliability. Existing technologies suffer from two major drawbacks: 1) Traditional wiring harness fixing devices rely solely on rigid clamps, which cannot effectively buffer vibrations and impacts during vehicle operation; 2) Increasing the thickness of the insulation layer or using protective sheaths leads to a decrease in the wiring harness's heat dissipation performance, affecting the efficiency of the high-voltage system.

[0003] Therefore, in order to overcome the shortcomings of existing technologies, it is necessary to design a new type of automotive wiring harness fixing clamp that is simple in structure, stable, and has protective functions. Utility Model Content

[0004] This utility model provides an automotive wiring harness fixing clamp to solve the problems of the prior art.

[0005] The objective of this utility model can be achieved through the following technical solution: A car wiring harness fixing clamp includes: a wiring harness body and a fixing clamp assembly. The fixing clamp assembly includes a metal clamp, a rubber sleeve and a screw. The metal clamp has a wiring harness through hole one inside, and the rubber sleeve has a wiring harness through hole two inside. The wiring harness body passes through the wiring harness through hole one and the wiring harness through hole two. The inner side of the wiring harness through hole two is provided with a raised rib. The outer side of the rubber sleeve is provided with a limiting groove. The limiting groove extends outward from the middle. The left side of the metal clamp is sleeved in the limiting groove, and the right side of the metal clamp is fixed to an external frame by a screw.

[0006] In a further improvement, the metal clamp includes an integrally connected ring sleeve, an upper connecting plate, and a lower connecting plate. The ring sleeve is disposed within a limiting groove. A clamping rib is symmetrically connected to the lower right end of the ring sleeve. The upper right end of the ring sleeve is disposed within the groove of the clamping rib. The upper connecting plate is connected to the right side of the upper right end, and the lower connecting plate is connected to the right side of the lower connecting plate. The upper connecting plate is provided with a guide hole, and the lower connecting plate is provided with an anti-push-pull rib passing through the guide hole. Both the upper and lower connecting plates are provided with through holes, and the screw is disposed downward through the through hole.

[0007] As a further improvement, a washer located at the upper end of the upper connecting plate is fitted onto the screw.

[0008] As a further improvement, a positioning rib is provided at the right end of the lower connecting plate.

[0009] As a further improvement, the main body of the wire harness is provided with convex peaks and troughs at intervals.

[0010] Compared with the prior art, the advantages of this utility model of automotive wiring harness fixing clamp are as follows:

[0011] The system employs a composite structure of a metal clip and a rubber sleeve, with an interference fit achieved through a limiting groove. When the screw is tightened, the metal clip's ring compresses the rubber sleeve, generating a radial contraction force. This, combined with the raised ribs on the inner side, forms a multi-contact clamping structure. Simultaneously, the elastic deformation of the rubber sleeve absorbs vibration energy, reducing the rigid contact between the wiring harness and the metal clip. The rubber sleeve effectively absorbs vibrations generated during vehicle operation, ensuring the wiring harness's shock absorption performance, reducing damage to the high-voltage wiring harness, improving its durability and reliability, and without affecting its heat dissipation performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of the exploded view of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the rubber sleeve in this utility model.

[0015] Figure 4 This is a schematic diagram of the metal clip in this utility model.

[0016] In the diagram, 1-wire harness body, 11-crest protrusion, 12-trough groove, 2-fixing clamp assembly, 21-screw, 22-metal clip, 221-ring sleeve, 2211-lower right end, 2212-upper right end, 222-upper connecting plate, 2221-guide hole, 223-lower connecting plate, 224-clamping rib, 225-anti-push-pull rib, 226-through hole, 227-positioning rib, 228-wire harness through hole one, 23-rubber sleeve, 231-wire harness through hole two, 232-protruding rib, 233-limiting groove, 24-waist. Detailed Implementation

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] The following describes the embodiments and appendices. Figures 1-4 The technical solution of this utility model will be further described below.

[0019] Example 1

[0020] A wiring harness fixing clamp for automobiles includes: a wiring harness body 1 and a fixing clamp assembly 2. The fixing clamp assembly 2 includes a metal clamp 22, a rubber sleeve 23 and a screw 21. The metal clamp 22 has a wiring harness through hole 228 inside, and the rubber sleeve 23 has a wiring harness through hole 231 inside. The wiring harness body 1 passes through the wiring harness through hole 228 and the wiring harness through hole 231. The inner side of the wiring harness through hole 231 is provided with a raised rib 232, and the outer side of the rubber sleeve 23 is provided with a limiting groove 233. The limiting groove 233 extends outward from the middle. The left side of the metal clamp 22 is fitted into the limiting groove 233, and the right side of the metal clamp 22 is fixed to an external frame by the screw 21.

[0021] like Figures 1-4 As shown, the working principle of this utility model is as follows: A composite structure of a metal clip and a rubber sleeve is used, with an interference fit achieved through a limiting groove. When the screw is tightened, the metal clip ring compresses the rubber sleeve, generating a radial contraction force, which, together with the inner protruding ribs, forms a multi-contact clamping structure. Simultaneously, the elastic deformation of the rubber sleeve absorbs vibration energy, reducing the rigid contact between the wire harness and the metal clip.

[0022] The rubber sleeve forms multi-point frictional contact with the wire harness surface through raised ribs, providing circumferential anti-slip force; the ring part of the metal clip cooperates with the limiting groove to achieve axial positioning and prevent the wire harness from moving.

[0023] As a further preferred embodiment, the metal clip 22 includes an integrally connected ring sleeve 221, an upper connecting plate 222, and a lower connecting plate 223. The ring sleeve 221 is disposed in a limiting groove 233. The lower right end 2211 of the ring sleeve 221 is symmetrically connected with clamping ribs 224. The upper right end 2212 of the ring sleeve 221 is disposed in the groove of the clamping ribs 224. The upper connecting plate 222 is connected to the right side of the upper right end 2212, and the lower connecting plate 223 is connected to the right side of the lower connecting plate 223. The upper connecting plate 222 is provided with a guide hole 2221, and the lower connecting plate 223 is provided with an anti-push-pull rib 225 passing through the guide hole 2221. Both the upper connecting plate 222 and the lower connecting plate 223 are provided with through holes 226, and the screw 21 is disposed downward through the through hole 226.

[0024] After the ring part of the metal clip is fitted into the limiting groove, the ring part is locked by the clamping rib, which further ensures the stability of the ring part and reduces physical damage to the main body of the wire harness during use.

[0025] The anti-push pull rib of the lower connecting plate passes through the guide hole of the upper connecting plate to form a limiting structure, preventing the upper connecting plate on the right side of the ring sleeve from being misaligned with the lower connecting plate, thus ensuring the overall stability of the metal clip; at the same time, the dynamic tension generated by the anti-push pull rib during vehicle movement can prevent the wire harness from undergoing shear deformation at the fixing point, reducing the physical damage to the wire harness.

[0026] As a further preferred embodiment, a washer 24 is fitted onto the screw 21 at the upper end of the upper connecting plate 222. The washer can distribute the concentrated load of the screw, prevent plastic deformation of the connecting plate on the metal clamp, and provide additional sealing protection.

[0027] As a further preferred embodiment, the lower connecting plate 223 is provided with a positioning rib 227 at its right end. The positioning rib prevents the main body of the wiring harness from becoming misaligned due to vibration or bumps during vehicle operation, thereby preventing the main body of the wiring harness from becoming loose, falling off, or suffering physical damage.

[0028] As a further preferred embodiment, the main body 1 of the wire harness is provided with wave crests 11 and troughs 12 spaced apart. The wave crests 11 and troughs 12 form a wave-shaped protrusion on the surface of the wire harness, forming a non-fully engaged elastic contact with the raised ribs inside the rubber sleeve. When the rubber sleeve is compressed, the ribs conform to the wave surface through elastic deformation, forming multi-point contact on both sides of the wave crest, and further improving the anti-slip performance of the wire harness by utilizing the frictional resistance between the materials.

[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A car wiring harness fixing clamp, characterized in that, include: The wiring harness body and the fixing clamp assembly include a metal clamp, a rubber sleeve, and screws. The metal clamp has a first wiring harness through hole inside, and the rubber sleeve has a second wiring harness through hole inside. The wiring harness body passes through the first and second wiring harness through holes. The inner side of the second wiring harness through hole has a raised rib, and the outer side of the rubber sleeve has a limiting groove. The limiting groove extends outward from the center. The left side of the metal clamp is fitted into the limiting groove, and the right side of the metal clamp is fixed to an external frame by screws.

2. The automotive wiring harness fixing clamp according to claim 1, characterized in that, The metal clamp includes an integrally connected ring sleeve, an upper connecting plate, and a lower connecting plate. The ring sleeve is disposed in a limiting groove. A clamping rib is symmetrically connected to the lower right end of the ring sleeve. The upper right end of the ring sleeve is disposed in the groove of the clamping rib. The upper connecting plate is connected to the right side of the upper right end, and the lower connecting plate is connected to the right side of the lower connecting plate. The upper connecting plate is provided with a guide hole, and the lower connecting plate is provided with an anti-push-pull rib passing through the guide hole. Both the upper and lower connecting plates are provided with through holes, and the screw is disposed downward through the through hole.

3. The automotive wiring harness fixing clamp according to claim 2, characterized in that, The screw is fitted with a washer located at the upper end of the upper connecting plate.

4. The automotive wiring harness fixing clamp according to claim 2, characterized in that, The lower connecting plate has a positioning rib on its right end.

5. The automotive wiring harness fixing clamp according to claim 1, characterized in that, The main body of the wire harness is provided with convex peaks and troughs at intervals.

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