Automobile wire harness with bending-resistant structure
By installing rigid rubber strips on the surface of automotive wiring harnesses and using flexible rubber base strips and connecting strips, the problems of insulation aging and wire breakage under bending conditions are solved, improving the bending resistance of the wiring harness and the stability of the electrical system.
Patent Information
- Application Number
- CN202422430473.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-09
AI Technical Summary
When automotive wiring harnesses are bent over a long period of time, the insulation layer is prone to aging and the internal wires may break, affecting the stability and safety of the electrical system.
Six rigid rubber strips are installed on the surface of the automotive wiring harness. The strips have notches and are connected to a flexible rubber base strip and a connecting strip at the bottom. The harness is fixed by squeezing and inserting into the notches, which enhances the bending resistance of the wiring harness.
It improves the bending resistance of automotive wiring harnesses, reduces the risk of insulation aging and wire breakage, and enhances the stability and safety of electrical systems.
Smart Images

Figure CN223552297U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive wiring harness technology, specifically relating to automotive wiring harnesses with a bending-resistant structure. Background Technology
[0002] Automotive wiring harnesses are the main network of automotive circuits and an indispensable key component of automotive electrical systems. They consist of copper-stamped contact terminals (connectors) crimped to wires and cables, then covered with a molded insulator or an outer metal shell, and finally bundled together to form an assembly that connects circuits. Automotive wiring harnesses are assemblies formed by bundling wires to connect and function the electrical and electronic components of a vehicle.
[0003] Automotive wiring harnesses are often designed with bends in their layout to accommodate installation requirements. However, this continuous bending over a long period can cause stress concentration at the bends. This sustained stress can accelerate the aging of the wiring harness insulation and may also cause internal wire breakage or poor contact, resulting in irreversible damage to the wiring harness and consequently affecting the stability and safety of the entire electrical system. Therefore, improvements are needed. Utility Model Content
[0004] The purpose of this invention is to provide an automotive wiring harness with a bend-resistant structure, aiming to address the common problem that automotive wiring harnesses are often designed in a bent state in vehicle layouts to accommodate installation requirements. However, this prolonged continuous bending leads to stress concentration at the bending points of the wiring harness. This continuous stress can not only accelerate the aging of the wiring harness insulation layer but also cause breakage or poor contact of internal wires, resulting in irreversible damage to the automotive wiring harness and consequently affecting the stability and safety of the entire electrical system. Therefore, improvements are needed to address this issue.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automotive wiring harness with a bend-resistant structure, comprising an automotive wiring harness, wherein a plug is connected to each end of the automotive wiring harness, and a strip is mounted on the surface of the automotive wiring harness;
[0006] The strips are made of hard rubber, and there are six strips in total, with an included angle of 60° between any two adjacent strips.
[0007] In order to connect the automotive wiring harness to the long strip, the preferred automotive wiring harness of this utility model with a bending-resistant structure has six notches evenly spaced on its surface. The upper side of the notch is a rectangular groove structure, and the lower side of the notch is a semi-circular groove structure, and the diameter of the semi-circular groove is greater than the lateral length of the rectangular groove.
[0008] To facilitate the mating of the bottom strip and the connecting strip with the notch, in a preferred embodiment of the automotive wiring harness with a bend-resistant structure of this invention, each of the long strips is fixedly connected to a bottom strip, and the bottom of the bottom strip is fixedly connected to a connecting strip. The lengths of the bottom strip and the connecting strip are adapted to the length of the notch, and the dimensions of the bottom strip and the connecting strip are adapted to the internal dimensions of the notch.
[0009] In order to allow the bottom strip and the connecting strip to be compressed and deformed during the connection process, so that the bottom strip and the connecting strip can be installed inside the connecting strip, the bottom strip and the connecting strip are both made of flexible rubber material, which is a preferred embodiment of the automotive wiring harness with a bending-resistant structure of this utility model.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] During use, the bottom strip and the connecting strip are installed into the recess. This allows the long strip to be installed on the outer wall of the automotive wiring harness through the bottom strip and the connecting strip. Then, the remaining five long strips are installed on the outer wall of the automotive wiring harness in sequence. After installation, the six long strips will surround the outer wall of the automotive wiring harness. When the automotive wiring harness is subjected to bending force, the six long strips will bear the bending force, thereby improving the bending resistance of the automotive wiring harness through this structure. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0014] Figure 2 This is a partial side view of the automotive wiring harness structure of this utility model;
[0015] Figure 3 This is a partial cross-sectional structural diagram of the automotive wiring harness of this utility model.
[0016] Figure 4 This is a schematic diagram of the partial bottom surface structure of the long strip of this utility model.
[0017] In the diagram: 1. Automotive wiring harness; 101. Notch; 2. Plug; 3. Strip; 301. Bottom strip; 302. Connecting strip. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-4 The present invention provides the following technical solution: an automotive wiring harness with a bend-resistant structure, comprising an automotive wiring harness 1, wherein a plug 2 is connected to each end of the automotive wiring harness 1, and a strip 3 is mounted on the surface of the automotive wiring harness 1;
[0020] The strip 3 is made of hard rubber. There are six strips 3. The included angle between two adjacent strips 3 is 60°. The strip 3 has an arc-shaped structure, and the bottom arc-shaped outer wall of the strip 3 is in complete contact with the outer wall of the automotive wiring harness 1.
[0021] Preferably, the surface of the automotive wiring harness 1 has six equally spaced notches 101. The upper side of each notch 101 is a rectangular groove, and the bottom side is a semi-circular groove, with the diameter of the semi-circular groove being greater than the lateral length of the rectangular groove. A bottom strip 301 is fixedly connected to the bottom of each strip 301, and a connecting strip 302 is fixedly connected to the bottom of the bottom strip 301. The lengths of the bottom strip 301 and the connecting strip 302 are adapted to the length of the notch 101, and the dimensions of the bottom strip 301 and the connecting strip 302 are adapted to the internal dimensions of the notch 101.
[0022] In practical use, the bottom strip 301 and the connecting strip 302 at the bottom of the long strip 3 are squeezed and deformed, and the width of the squeezed bottom strip 301 and the connecting strip 302 is smaller than the opening size of the notch 101.
[0023] Next, insert the bottom strip 301 and the connecting strip 302 into the recess 101, and squeeze the long strip 3 again. When the long strip 3 is squeezed, it will further press the bottom strip 301 and the connecting strip 302 into the recess 101. When the bottom strip 301 and the connecting strip 302 are completely inside the recess 101, the bottom strip 301 and the connecting strip 302 will reset. In this way, the bottom strip 301 and the connecting strip 302 can be fixed inside the recess 101. Thus, the bottom strip 301 is connected to the automotive wiring harness 1. After all six bottom strips 301 are installed, the bottom strips 301 can bear the bending force on the automotive wiring harness 1 when it is subjected to bending force, thus improving the bending resistance of the automotive wiring harness 1.
[0024] Preferably, both the bottom strip 301 and the connecting strip 302 are made of flexible rubber.
[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A car wiring harness with a bend-resistant structure, comprising a car wiring harness (1), wherein a plug (2) is connected to each end of the car wiring harness (1), characterized in that: The surface of the automotive wiring harness (1) is fitted with a strip (3); The strip (3) is made of hard rubber, and there are six strips (3). The included angle between two adjacent strips (3) is 60°.
2. The automotive wiring harness with a bend-resistant structure according to claim 1, characterized in that: The surface of the vehicle wiring harness (1) has six equally spaced notches (101). The upper side of the notch (101) is a rectangular groove structure, and the bottom side of the notch (101) is a semi-circular groove structure. The diameter of the semi-circular groove is greater than the lateral length of the rectangular groove.
3. The automotive wiring harness with a bend-resistant structure according to claim 1, characterized in that: Each of the long strips (3) has a bottom strip (301) fixedly connected to its bottom, and a butt strip (302) is fixedly connected to the bottom of the bottom strip (301).
4. The automotive wiring harness with a bend-resistant structure according to claim 3, characterized in that: The lengths of the bottom strip (301) and the butt strip (302) are adapted to the length of the notch (101), and the dimensions of the bottom strip (301) and the butt strip (302) are adapted to the internal dimensions of the notch (101).
5. The automotive wiring harness with a bend-resistant structure according to claim 3, characterized in that: Both the bottom strip (301) and the butt strip (302) are made of flexible rubber.