Anti-breaking lamp wire harness for automobile

By introducing a combination structure of silicone rubber insulation layer, reinforcement layer and spiral sleeve into the vehicle headlight wiring harness, combined with the interlaced design of bulletproof wire and carbon fiber, the problem of easy breakage of the wiring harness is solved, higher tensile strength and stress dispersion effect are achieved, and service life is extended.

CN224934521UActive Publication Date: 2026-11-03CHANGZHOU TONGTAI PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202522293955.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-11-03
Estimated Expiration
2035-10-30

AI Technical Summary

Technical Problem

Existing automotive lighting wiring harnesses are susceptible to insulation wear and wire breakage due to exposed installation and vibration and friction. Furthermore, the tensile strength of a single rubber layer is insufficient, affecting safety and lifespan.

Method used

The protective mechanism combines a silicone rubber insulation layer, a reinforcing layer, and a spiral sleeve. The reinforcing layer contains interlaced bulletproof and carbon fiber fibers to support the springs and contact plates and disperse vibration stress. The bonding strength and tensile strength are improved through an integrated injection molding process.

Benefits of technology

It improves the tensile and compressive strength of the wire harness, disperses vibration stress, extends the service life of the wire harness, and prevents breakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of car light wire harness, concretely is a kind of car light wire harness of anti-fracture for automobile, including wire harness main body, the end of wire harness main body is provided with interface module, the outside of wire harness main body is equipped with protection mechanism, the outside of protection mechanism is provided with fixed block, the top rear side surface of fixed block is equipped with mounting hole, the inside of fixed block is provided with support spring and contact plate respectively, by setting a kind of car light wire harness of anti-fracture for automobile, to utilize the structural design in protection mechanism, in the combination of silicon rubber insulating layer, reinforcing layer and spiral sleeve, the tensile strength of wire harness can be improved, spring sheath can protect the bending part of wire harness, to further improve the protection effect to wire harness, it is favorable to subsequent use.
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Description

Technical Field

[0001] This utility model relates to the field of automotive lighting wiring harness technology, specifically to an automotive lighting wiring harness designed to prevent breakage. Background Technology

[0002] Wiring harness assemblies are an essential component of lighting fixtures and therefore cannot be ignored. Currently, most lighting fixtures still use a solution where the wiring harness assemblies are installed exposed outside the fixture. Automotive lighting wiring harnesses are prone to insulation wear and wire breakage due to long-term vibration, bending, and external friction, which can lead to lighting malfunctions. Therefore, they need to be protected.

[0003] Currently used automotive headlight wiring harnesses designed to prevent breakage mostly employ a single rubber layer for protection. This method exhibits poor tensile strength, making it prone to breakage due to stress concentration at bends. Consequently, it fails to effectively protect the wiring harness and affects its safe use. Furthermore, the connection between the wiring harness and the fixing block is often rigid, meaning that during use, stress generated by vibration directly acts on the contact points, impacting the harness's lifespan.

[0004] In summary, this utility model solves the problems in the background art by designing a car headlight wiring harness that is resistant to breakage. Utility Model Content

[0005] The purpose of this invention is to provide a breakage-resistant automotive headlight wiring harness to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A car headlight wiring harness designed to prevent breakage includes a harness body, an interface module at the end of the harness body, a protective mechanism sleeved on the outside of the harness body, a fixing block on the outside of the protective mechanism, a mounting hole on the top rear surface of the fixing block, and a support spring and a contact plate respectively disposed inside the fixing block. The protective mechanism includes a silicone rubber insulation layer, which is sleeved on the outer surface of the wire harness body. A reinforcing layer is sleeved on the outer side of the silicone rubber insulation layer. The interior of the reinforcing layer contains bulletproof wire fibers and carbon fibers. A spiral sleeve is sleeved on the outer side of the reinforcing layer, and the spiral sleeve is provided with a spring sheath.

[0007] As a preferred embodiment of this utility model, the supporting springs are distributed at equal intervals on the inner surface of the fixing block.

[0008] As a preferred embodiment of this utility model, the contact plate is formed in an arc shape, the contact plate is arranged in a mirror image of the inner wall of the contact plate, and the opposite side surfaces of the contact plate are in contact with the support spring.

[0009] As a preferred embodiment of this utility model, the silicone rubber insulation layer and the wire harness body are integrally injection molded together.

[0010] As a preferred embodiment of this utility model, the outer surface of the silicone rubber insulating layer is in fixed contact with the inner wall of the reinforcing layer, and the outer surface of the reinforcing layer is in fixed contact with the inner wall of the spiral sleeve.

[0011] As a preferred embodiment of this utility model, there are multiple spring sleeves, and the inner walls of the multiple spring sleeves slide in contact with the outer surface of the spiral sleeve.

[0012] As a preferred embodiment of this utility model, the bulletproof yarn and carbon fiber are arranged in a crisscross pattern.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by setting up an anti-breakage car light wiring harness, the structural design of the protective mechanism, through the combination of silicone rubber insulation layer, reinforcing layer and spiral sleeve, can improve the tensile strength of the wiring harness, and the spring sheath can protect the bending parts of the wiring harness, thereby improving the protection effect of the wiring harness and benefiting subsequent use.

[0014] 2. In this utility model, by setting up an anti-breakage car light wiring harness, the structural design of the fixing block, the support spring and the contact plate can effectively disperse the vibration stress on the wiring harness and ensure the service life of the wiring harness through the combination of the support spring and the contact plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded structural diagram of the fixing block of this utility model; Figure 3 This is a schematic diagram of the protective mechanism of this utility model; Figure 4 This is a schematic diagram of part of the internal structure of the reinforcing layer of this utility model.

[0016] In the diagram: 1. Main body of the wiring harness; 2. Interface module; 3. Protective mechanism; 301. Silicone rubber insulation layer; 302. Reinforcing layer; 3021. Bulletproof fiber; 3022. Carbon fiber; 303. Spiral sleeve; 304. Spring sleeve; 4. Fixing block; 401. Mounting hole; 402. Support spring; 403. Contact plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] For examples, please refer to Figure 1-4 This utility model provides a technical solution: A car headlight wiring harness designed to prevent breakage includes a wiring harness body 1, an interface module 2 at the end of the wiring harness body 1, a protective mechanism 3 on the outside of the wiring harness body 1, a fixing block 4 on the outside of the protective mechanism 3, a mounting hole 401 on the top rear surface of the fixing block 4, and a support spring 402 and a contact plate 403 respectively inside the fixing block 4. Specifically, the support spring 402 is distributed at equal intervals on the inner surface of the fixing block 4, the contact plate 403 is formed in an arc shape, the contact plate 403 is mirrored on the inner wall of the contact plate 403, and the opposite side surfaces of the contact plate 403 are in contact with the support spring 402. In this embodiment, the support spring 402 is mainly used to provide elastic support for the contact plate 403, so that the contact plate 403 contacts the outer surface of the spiral sleeve 303. At the same time, the support spring 402 can absorb and disperse the stress on the wire harness, reducing the occurrence of stress concentration.

[0022] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 4 The protective mechanism 3 includes a silicone rubber insulation layer 301, which is sleeved on the outer surface of the wire harness body 1. A reinforcing layer 302 is sleeved on the outer side of the silicone rubber insulation layer 301. The reinforcing layer 302 is provided with bulletproof wire fiber 3021 and carbon fiber 3022 inside. A spiral sleeve 303 is sleeved on the outer side of the reinforcing layer 302. A spring sleeve 304 is provided on the spiral sleeve 303. Specifically, the silicone rubber insulation layer 301 is integrally injection molded and wrapped with the wire harness body 1. The outer surface of the silicone rubber insulation layer 301 is in fixed contact with the inner wall of the reinforcing layer 302. The outer surface of the reinforcing layer 302 is in fixed contact with the inner wall of the spiral sleeve 303. There are multiple spring sleeves 304. The inner walls of the multiple spring sleeves 304 are in sliding contact with the outer surface of the spiral sleeve 303. The bulletproof fiber 3021 and carbon fiber 3022 are arranged in a crisscross pattern. In this embodiment, the integrated injection molding process can improve the bonding strength between the wire harness body 1 and the silicone rubber insulation layer 301, effectively preventing interlayer peeling. The interlacing of the elastic fiber 3021 and carbon fiber 3022 can improve the tensile strength of the reinforcing layer 302. The spiral sleeve 303 can enhance the compressive strength of the wire harness body 1. The spring sleeve 304 is mainly used to connect with the bent part of the wire harness body 1, which facilitates the dispersion of the concentrated stress on the bent part of the wire harness body 1, thereby achieving the function of preventing the vehicle light wire harness from breaking.

[0023] The working process of this utility model is as follows: When using a car headlight wiring harness designed to prevent breakage, the fixing block 4 is moved to contact the wiring harness body 1, ensuring that the contact plate 403 wraps around the spiral sleeve 303. Then, the fixing block 4 is secured to the vehicle frame through the engagement of the mounting hole 401 and screws. Subsequently, an integral injection molding process prevents interlayer delamination between the silicone rubber insulation layer 301 and the wiring harness body 1. The reinforcing layer 302 contains interwoven bulletproof fiber 3021 and carbon fiber 3022. The braided design improves the tensile strength of the main body 1 of the wire harness, while the spiral sleeve 303 improves the compressive strength of the main body 1 of the wire harness. Subsequently, the spring sleeve 304 is moved to adjust the bending position of the main body 1 of the wire harness for protection. Finally, under the elastic support of the contact plate 403 by the supporting spring 402, the contact plate 403 and the spiral sleeve 303 make flexible contact, thereby dispersing the concentrated stress at the contact point and meeting the usage requirements of the wire harness.

[0024] 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 breakage-resistant automotive headlight wiring harness, comprising a harness body (1), characterized in that: The end of the wire harness body (1) is provided with an interface module (2), the outer side of the wire harness body (1) is provided with a protective mechanism (3), the outer side of the protective mechanism (3) is provided with a fixing block (4), the top rear surface of the fixing block (4) is provided with an installation hole (401), and the interior of the fixing block (4) is provided with a support spring (402) and a contact plate (403). The protective mechanism (3) includes a silicone rubber insulation layer (301), which is sleeved on the outer surface of the wire harness body (1). A reinforcing layer (302) is sleeved on the outer side of the silicone rubber insulation layer (301). The reinforcing layer (302) is provided with bulletproof fiber (3021) and carbon fiber (3022) inside. A spiral sleeve (303) is sleeved on the outer side of the reinforcing layer (302), and a spring sleeve (304) is provided on the spiral sleeve (303).

2. The automotive lamp wiring harness with anti-breakage protection according to claim 1, characterized in that: The support spring (402) is distributed at equal intervals on the inner surface of the fixing block (4).

3. The automotive headlight wiring harness with anti-breakage protection according to claim 1, characterized in that: The contact plate (403) is formed in an arc shape. The contact plate (403) is arranged in a mirror image with respect to the inner wall of the contact plate (403). The opposite side surfaces of the contact plate (403) are in contact with the support spring (402).

4. The automotive lamp wiring harness with anti-breakage protection according to claim 1, characterized in that: The silicone rubber insulation layer (301) and the wire harness body (1) are integrally injection molded together.

5. The automotive lamp wiring harness with anti-breakage protection according to claim 1, characterized in that: The outer surface of the silicone rubber insulating layer (301) is in fixed contact with the inner wall of the reinforcing layer (302), and the outer surface of the reinforcing layer (302) is in fixed contact with the inner wall of the spiral sleeve (303).

6. The automotive lamp wiring harness with anti-breakage protection according to claim 1, characterized in that: There are multiple spring sleeves (304), and the inner walls of the multiple spring sleeves (304) slide in contact with the outer surface of the spiral sleeve (303).

7. The automotive headlight wiring harness with anti-breakage protection according to claim 1, characterized in that: The bulletproof fiber (3021) and carbon fiber (3022) are arranged in a crisscross pattern.