A lightweight electric vehicle cable bundle
By using a flexible square corrugated tube and buffer structure design, the problems of increased cable bundle weight and large space occupation were solved, achieving both lightweighting and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU QIAOSHI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-05-26
AI Technical Summary
Existing cable bundles are heavier due to their circular wrapping method, and they occupy a lot of space when multiple bundles are arranged in parallel, making it difficult to meet the requirements for lightweight equipment.
The external protective structure uses a flexible square corrugated tube, with a plastic iron wire and a square insulating rubber sheet inside. The inner shell is equipped with a limiting groove and a buffer spring. The weight is reduced by using flexible materials and a fixed design, and the buffer structure reduces the impact of vibration.
This achieves lightweight cable bundles and improved space utilization, while enhancing cable safety and stability in vibration environments and preventing wear and signal interference.
Smart Images
Figure CN224277064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable harness technology, and in particular to a lightweight electric vehicle cable harness. Background Technology
[0002] A cable bundle is a wire assembly formed by binding and wrapping multiple cables in various electromechanical systems such as electric vehicles, automobiles, and industrial equipment. Its core function is to enable power transmission and signal communication within or between equipment, while simultaneously organizing and managing previously scattered cables. The cable bundle acts as the "collector and manager" of cables in an electromechanical system, undertaking both power and signal transmission functions and ensuring efficient and safe system operation through integration and protection. It is a key component for achieving electrical connections in various devices.
[0003] In existing technologies, cable bundles are usually fixed together by wrapping multiple cables in a circular shape. Due to the diameter limitation of the circular cross-section, there is wasted space on both sides. To avoid swaying and wear in the gaps, additional fasteners and protective layers are often required, which further increases the overall weight. When multiple bundles are arranged in parallel, the gaps between the circular cross-sections will also force the overall layout to expand. In order to accommodate these loose structures, the related support components also need to be enlarged accordingly, forming a chain reaction of weight increase effect, which makes it difficult to meet the core requirement of lightweight equipment. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a lightweight electric vehicle cable bundle.
[0005] This utility model is achieved by the following technical solution: a lightweight electric vehicle cable bundle, including a flexible square corrugated tube, the flexible square corrugated tube having a placement groove inside, a malleable iron wire fixedly connected to the outer wall of the placement groove, a square insulating rubber plate fixedly connected to the inner wall of the flexible square corrugated tube, and an inner shell fixedly connected to the inner wall of the square insulating rubber plate.
[0006] Through the above technical solution, the flexible square corrugated pipe, as the external protective structure of the cable bundle, can adapt to the complex installation space inside the electric vehicle due to its flexible material. It will not easily break during bending, ensuring the safety of the internal cables. At the same time, the square shape of the flexible square corrugated pipe makes it easy for personnel to stack them during installation, which can improve space utilization and prevent the flexible square corrugated pipe from moving. In addition, there is no need for extra support components to fill the gaps, reducing the overall weight and thus achieving the requirement of lightweighting. The malleable iron wire fixed on the outer wall of the placement groove gives the flexible square corrugated pipe the ability to be shaped. The square insulating rubber plate fixed on the inner wall of the flexible square corrugated pipe mainly serves as insulation, and the inner shell protects the cables.
[0007] As a further improvement to the above solution, a limiting groove is formed on the inner wall of the inner shell, a limiting block is slidably connected to the outer wall of the limiting groove, and a rubber plate is fixedly connected to the outer wall of the limiting block.
[0008] As a further improvement to the above solution, a plurality of limiting grooves are provided, and the plurality of limiting grooves are evenly arranged on the inner wall of the inner shell. A plurality of limiting blocks are provided, and the plurality of limiting blocks are evenly arranged on the outer wall of the rubber plate.
[0009] As a further improvement to the above solution, a rubber partition plate is fixedly connected to the top of the rubber plate, and a limit post is fixedly connected to the bottom of the rubber plate, with a buffer spring sleeved on the outer wall of the limit post.
[0010] As a further improvement to the above solution, a plurality of limiting posts are provided, and the plurality of limiting posts are evenly arranged at the bottom of the rubber plate; a plurality of buffer springs are provided, and the plurality of buffer springs are evenly arranged at the bottom of the rubber plate.
[0011] As a further improvement to the above solution, a limiting post is provided on the outer wall of the buffer spring, and the limiting post is fixedly connected to the bottom of the inner wall of the inner shell.
[0012] Through the above technical solution, a limiting post is fixed on the inner wall of the inner shell. The limiting post and the limiting post limit the buffer spring. When the vehicle body is vibrated, the vibration force will be transmitted to the rubber plate through the external structure. The rubber plate itself has elastic deformation capability, which can first absorb and attenuate the vibration energy. At the same time, the spring will expand and contract with the vibration force, further converting the remaining vibration energy into elastic potential energy, forming a secondary buffer, which greatly reduces the vibration amplitude transmitted to the internal cable. The rubber partition plate fixed on the top of the rubber plate can divide the internal space of the inner shell into multiple independent areas, so that different types of cables can be in their own positions, avoiding insulation wear or signal interference caused by mutual collision and friction of cables in the vibration environment, and further ensuring the operational safety of the cable bundle.
[0013] As a further improvement to the above solution, a U-shaped pressure block is fixedly connected to the outer wall of the flexible square corrugated pipe. A locking screw is threaded inside the U-shaped pressure block. Two U-shaped pressure blocks are provided, and the two U-shaped pressure blocks are symmetrically arranged with the flexible square corrugated pipe as the center.
[0014] Using the above technical solution, a U-shaped pressure block is fixed on the outer wall of the flexible square corrugated pipe. Personnel connect the locking screw to the limiting post by thread, so that the locking screw is threaded inside the vehicle body, thereby fixing the entire flexible square corrugated pipe.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This invention uses a flexible square corrugated tube as the external protective structure for the cable bundle. Because it is made of flexible material, it can adapt to the complex installation space inside an electric vehicle and will not easily break during bending, ensuring the safety of the internal cables. Furthermore, the square shape of the flexible square corrugated tube allows for easy stacking during installation, improving space utilization and preventing movement. It also eliminates the need for extra support components to fill gaps, reducing overall weight and achieving lightweighting. A malleable iron wire is fixed to the outer wall of the placement groove, giving the flexible square corrugated tube the ability to be shaped. A square insulating rubber sheet is fixed to the inner wall of the flexible square corrugated tube, primarily serving as insulation. The inner shell protects the cables.
[0017] This invention uses a limiting post fixed to the inner wall of the inner shell to limit the buffer spring. When the vehicle body is subjected to vibration, the vibration force is transmitted to the rubber plate through the external structure. The rubber plate itself has elastic deformation capability, which can initially absorb and attenuate the vibration energy. At the same time, the spring will expand and contract with the vibration force, further converting the remaining vibration energy into elastic potential energy, forming a secondary buffer, which greatly reduces the vibration amplitude transmitted to the internal cable. The rubber partition plate fixed on the top of the rubber plate can divide the internal space of the inner shell into multiple independent areas, so that different types of cables can be in their respective positions, avoiding insulation wear or signal interference caused by mutual collision and friction of cables in the vibration environment, and further ensuring the operational safety of the cable bundle. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the square insulating rubber sheet structure of this utility model;
[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;
[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the inner shell of this utility model;
[0022] Figure 5 This is a schematic diagram of the U-shaped pressure block structure of this utility model.
[0023] Explanation of key symbols:
[0024] 1. Flexible square corrugated pipe; 2. Placement groove; 3. Plastic iron wire; 4. Square insulating rubber sheet; 5. Inner shell; 6. Limiting groove; 7. Limiting block; 8. Rubber sheet; 9. Rubber partition plate; 10. Limiting post; 11. Buffer spring; 12. Limiting post one; 13. U-shaped pressure block; 14. Locking screw. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0026] Example:
[0027] Please combine Figure 1-5 This embodiment provides a lightweight electric vehicle cable bundle, including a flexible square corrugated tube 1. The flexible square corrugated tube 1 has a placement groove 2 inside. A malleable iron wire 3 is fixedly connected to the outer wall of the placement groove 2. A square insulating rubber plate 4 is fixedly connected to the inner wall of the flexible square corrugated tube 1. An inner shell 5 is fixedly connected to the inner wall of the square insulating rubber plate 4.
[0028] The inner wall of the inner shell 5 has a limiting groove 6, the outer wall of the limiting groove 6 is slidably connected to a limiting block 7, and the outer wall of the limiting block 7 is fixedly connected to a rubber plate 8.
[0029] Several limiting grooves 6 are provided, and the several limiting grooves 6 are evenly arranged on the inner wall of the inner shell 5. Several limiting blocks 7 are provided, and the several limiting blocks 7 are evenly arranged on the outer wall of the rubber plate 8.
[0030] A rubber partition plate 9 is fixedly connected to the top of the rubber plate 8, and a limit post 10 is fixedly connected to the bottom of the rubber plate 8. A buffer spring 11 is sleeved on the outer wall of the limit post 10.
[0031] Several limit posts 10 are provided, and the several limit posts 10 are evenly arranged at the bottom of the rubber plate 8. Several buffer springs 11 are provided, and the several buffer springs 11 are evenly arranged at the bottom of the rubber plate 8.
[0032] The outer wall of the buffer spring 11 is provided with a limit post 12, which is fixedly connected to the bottom of the inner wall of the inner shell 5.
[0033] A U-shaped pressure block 13 is fixedly connected to the outer wall of the flexible square corrugated pipe 1. A locking screw 14 is threaded inside the U-shaped pressure block 13. There are two U-shaped pressure blocks 13, which are symmetrically arranged with the flexible square corrugated pipe 1 as the center.
[0034] The implementation principle of a lightweight electric vehicle cable bundle in this embodiment is as follows: A flexible square corrugated tube 1 serves as the external protective structure for the cable bundle. Because it is made of flexible material, it can adapt to the complex installation space inside the electric vehicle and will not easily break during bending, ensuring the safety of the internal cables. Simultaneously, the square shape of the flexible square corrugated tube 1 allows for easy stacking during installation, improving space utilization and preventing movement. Furthermore, it eliminates the need for additional support components to fill gaps, reducing overall weight and achieving lightweighting. A malleable iron wire 3 is fixed to the outer wall of the placement groove 2, enabling the flexible square corrugated tube 1 to maintain its shape. A square insulating rubber sheet 4 is fixed to the inner wall of the flexible square corrugated tube 1, primarily serving as insulation. An inner shell 5 protects the cables. Limiting posts 12 and 10 are fixed to the inner wall of the inner shell 5, limiting the buffer spring 11. When the vehicle body is subjected to vibration, the vibration force is transmitted to the buffer spring 11 through the external structure. The rubber sheet 8 has its own elastic deformation capability, which can initially absorb and attenuate the vibration energy. At the same time, the spring 11 will expand and contract with the vibration force, further converting the remaining vibration energy into elastic potential energy, forming a secondary buffer, which greatly reduces the vibration amplitude transmitted to the internal cable. During this process, the rubber sheet 8 drives the limiting block 7 on the outer wall to slide smoothly along the limiting groove 6 on the inner wall of the inner shell 5, which not only provides precise motion guidance for the rubber sheet 8, but also avoids its disorderly shaking due to vibration. The rubber partition plate 9 fixed on the top of the rubber sheet 8 can divide the internal space of the inner shell 5 into multiple independent areas, so that different types of cables are in their proper positions, avoiding insulation wear or signal interference caused by mutual collision and friction of cables in the vibration environment, and further ensuring the operational safety of the cable bundle. A U-shaped pressure block 13 is fixed on the outer wall of the flexible square corrugated tube 1. Personnel connect the locking screw 14 to the limiting post 12 by thread, so that the locking screw 14 is threaded in the vehicle body, thereby fixing the flexible square corrugated tube 1 as a whole.
[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A lightweight electric vehicle cable harness, characterized in that, The device includes a flexible square corrugated pipe (1), which has a placement groove (2) inside. A malleable iron wire (3) is fixedly connected to the outer wall of the placement groove (2). A square insulating rubber plate (4) is fixedly connected to the inner wall of the flexible square corrugated pipe (1), and an inner shell (5) is fixedly connected to the inner wall of the square insulating rubber plate (4).
2. The lightweight electric vehicle cable harness as described in claim 1, characterized in that: The inner shell (5) has a limiting groove (6) on its inner wall, and a limiting block (7) is slidably connected to the outer wall of the limiting groove (6). A rubber plate (8) is fixedly connected to the outer wall of the limiting block (7).
3. A lightweight electric vehicle cable harness as described in claim 2, characterized in that: The limiting groove (6) is provided in a plurality of places, and the plurality of limiting grooves (6) are evenly arranged on the inner wall of the inner shell (5). The limiting block (7) is provided in a plurality of places, and the plurality of limiting blocks (7) are evenly arranged on the outer wall of the rubber plate (8).
4. A lightweight electric vehicle cable harness as described in claim 3, characterized in that: A rubber partition plate (9) is fixedly connected to the top of the rubber plate (8), and a limit post (10) is fixedly connected to the bottom of the rubber plate (8). A buffer spring (11) is sleeved on the outer wall of the limit post (10).
5. A lightweight electric vehicle cable harness as described in claim 4, characterized in that: The limiting posts (10) are provided in a plurality of manner, and the plurality of limiting posts (10) are evenly arranged at the bottom of the rubber plate (8). The buffer springs (11) are provided in a plurality of manner, and the plurality of buffer springs (11) are evenly arranged at the bottom of the rubber plate (8).
6. A lightweight electric vehicle cable harness as described in claim 5, characterized in that: The outer wall of the buffer spring (11) is provided with a limiting post (12), which is fixedly connected to the bottom of the inner wall of the inner shell (5).
7. A lightweight electric vehicle cable harness as described in claim 1, characterized in that: The flexible square corrugated pipe (1) has a U-shaped pressure block (13) fixedly connected to its outer wall. The U-shaped pressure block (13) has a locking screw (14) threaded inside. There are two U-shaped pressure blocks (13), and the two U-shaped pressure blocks (13) are symmetrically arranged with the flexible square corrugated pipe (1) as the center.