High-voltage cable structure for new energy automobile
By employing a multi-layer composite structure in high-voltage cables for new energy vehicles, including an epoxy resin filling layer, a high-temperature resistant insulation layer, a fire-retardant coating, a barrier layer, rubber blocks, and a cross-braided fiber layer, the problem of cable damage under bending and high-temperature environments is solved, achieving high-strength protection and stable operation of the cable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-03-20
AI Technical Summary
High-voltage cables used in new energy vehicles are easily damaged during installation and use due to bending, twisting, and high-temperature environments, which can cause the vehicle to malfunction.
The structure employs a combination of an epoxy resin filler layer, a high-temperature and corrosion-resistant first insulation layer, a fire-retardant second insulation layer, a barrier layer, rubber blocks, a fireproof layer, a cross-woven fiber layer, a copper strip layer, and an aluminum-plastic composite layer, providing structural support, fireproof and heat insulation, buffering, and electromagnetic shielding protection.
It enhances the cable's resistance to torsion, high temperatures, and fire, reduces cable damage, and ensures the cable operates normally under extreme conditions.
Smart Images

Figure CN224020496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, and in particular to a high-voltage cable structure for new energy vehicles. Background Technology
[0002] New energy vehicles are vehicles that primarily use electricity as their power source. During the use of new energy vehicles, high-voltage cables are required for power supply connections. High-voltage cables inevitably have gaps during the cabling process. Currently, filler ropes are generally used to fill these gaps, but during installation and use, bending, twisting, and high-temperature environments can all damage the cables, causing the vehicle to malfunction. Utility Model Content
[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0004] In view of the problems existing in the current high-voltage cable structure for new energy vehicles, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a high-voltage cable structure for new energy vehicles, which solves the problem that "bending and twisting during installation and use, as well as high-temperature environments, can damage the cable and cause the vehicle to malfunction."
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-voltage cable structure for new energy vehicles, comprising:
[0007] A cable unit includes a cable, a filler layer is fixedly connected to the outer surface of the cable, a first insulation layer is fixedly connected to the outer surface of the filler layer, a protective component is provided on the outer surface of the first insulation layer, a cable tie assembly is provided on the outer surface of the protective component, and a second insulation layer is provided on the outer surface of the cable tie assembly.
[0008] As a preferred embodiment of the high-voltage cable structure for new energy vehicles described in this utility model, the filling layer is made of epoxy resin material, the first insulation layer is made of a material resistant to high temperature and corrosion, and the outer surface of the second insulation layer is provided with a fireproof coating.
[0009] As a preferred embodiment of the high-voltage cable structure for new energy vehicles described in this utility model, the protective component includes a barrier layer, the inner wall of the barrier layer is fixedly connected to the outer surface of the first insulation layer, a plurality of rubber blocks are fixedly connected to the outer surface of the barrier layer, and a fireproof layer is fixedly connected to the outer surface of the rubber blocks.
[0010] As a preferred embodiment of the high-voltage cable structure for new energy vehicles described in this utility model, a buffer zone is provided on the adjacent sides of the fireproof layer and the barrier layer, both the fireproof layer and the barrier layer are heat-insulating materials, and both the outer surfaces of the fireproof layer and the barrier layer are provided with a corrosion-resistant coating.
[0011] As a preferred embodiment of the high-voltage cable structure for new energy vehicles described in this utility model, the cable tie assembly includes a fiber layer, the inner wall of the fiber layer is fixedly connected to the outer surface of the fireproof layer, a copper strip layer is fixedly connected to the outer surface of the fiber layer, and an aluminum-plastic composite layer is fixedly connected to the outer surface of the copper strip layer.
[0012] As a preferred embodiment of the high-voltage cable structure for new energy vehicles described in this utility model, the fiber layer and the copper strip layer are both cross-woven mesh-like structures, and the outer surface of the aluminum-plastic composite layer is fixedly connected to the inner wall of the second insulation layer.
[0013] The beneficial effects of this utility model are:
[0014] The cable is held in place by the filler layer, and the protective components provide fire protection, heat insulation and cushioning. The cable tie components provide high-strength protection and shielding, which can reduce the cable's damage and improve its performance by keeping it intact under external forces and twisting. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0016] Figure 1 This is a perspective view of a high-voltage cable structure for new energy vehicles proposed in this utility model;
[0017] Figure 2 for Figure 1 A schematic diagram of the protection components;
[0018] Figure 3 for Figure 1 A schematic diagram of the cable tie assembly.
[0019] In the diagram: 100, cable unit; 101, cable; 102, filler layer; 103, first insulation layer; 104, protective component; 104a, barrier layer; 104b, rubber block; 104c, fireproof layer; 105, cable tie assembly; 105a, fiber layer; 105b, copper tape layer; 105c, aluminum-plastic composite layer; 106, second insulation layer. Detailed Implementation
[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0024] Reference Figure 1-3 This utility model provides a high-voltage cable structure for new energy vehicles, comprising:
[0025] The cable unit 100 includes a cable 101. A filler layer 102 is fixedly connected to the outer surface of the cable 101. A first insulation layer 103 is fixedly connected to the outer surface of the filler layer 102. A protective component 104 is disposed on the outer surface of the first insulation layer 103. A cable tie assembly 105 is disposed on the outer surface of the protective component 104. A second insulation layer 106 is disposed on the outer surface of the cable tie assembly 105. The filler layer 102 is made of epoxy resin, the first insulation layer 103 is made of a high-temperature and corrosion-resistant material, and the outer surface of the second insulation layer 106 is coated with a fire-retardant coating. The cable 101 of the cable unit 100 transmits high-voltage current through conductivity. The filler layer 102, made of epoxy resin, provides structural support for the cable 101, effectively preventing the penetration of external moisture or impurities and ensuring stable current flow. The first insulation layer 103 is designed based on high-temperature and corrosion-resistant materials, enabling it to operate for extended periods in high-temperature or chemical environments, preventing electrical faults or leakage within the cable. The protective component 104 provides additional physical protection, preventing damage to the cable from external physical impacts. The cable tie assembly 105 ensures the stability of each layer, maintaining good electrical isolation and mechanical strength during cable operation. The second insulation layer 106 not only isolates current leakage but also, through the additional effect of fire-retardant coating, enhances the cable's resistance to fire or high-temperature environments, ensuring normal operation of the cable under extreme conditions and preventing the spread of fire or electrical fires.
[0026] The protective component 104 includes a barrier layer 104a, the inner wall of which is fixedly connected to the outer surface of the first insulating layer 103. Multiple rubber blocks 104b are fixedly connected to the outer surface of the barrier layer 104a, and a fireproof layer 104c is fixedly connected to the outer surface of each rubber block 104b. A buffer zone is provided on the adjacent sides of the fireproof layer 104c and the barrier layer 104a. Both the fireproof layer 104c and the barrier layer 104a are made of heat-insulating materials, and both the outer surfaces of the fireproof layer 104c and the barrier layer 104a are coated with a corrosion-resistant coating. The barrier layer 104a is the first layer of protective structure connected to the outer surface of the first insulation layer 103. It mainly serves the functions of heat insulation and physical protection. Its inner wall is tightly connected to the first insulation layer 103, ensuring that the electrical insulation performance inside the cable will not be reduced due to the influence of the external environment. The rubber block 104b plays the role of shock absorption and mitigating the impact of external forces. The fireproof layer 104c further enhances the fire resistance of the cable, while the buffer zone can form thermal isolation, delaying the impact of fire on the cable, and playing a dual role of fire prevention and heat insulation.
[0027] Furthermore, the cable tie assembly 105 includes a fiber layer 105a, the inner wall of which is fixedly connected to the outer surface of the fireproof layer 104c. A copper strip layer 105b is fixedly connected to the outer surface of the fiber layer 105a, and an aluminum-plastic composite layer 105c is fixedly connected to the outer surface of the copper strip layer 105b. Both the fiber layer 105a and the copper strip layer 105b are cross-woven mesh tubes, and the outer surface of the aluminum-plastic composite layer 105c is fixedly connected to the inner wall of the second insulating layer 106. The fiber layer 105a is made of high-strength fiber material, forming a robust base through a cross-woven mesh structure. This base can withstand tensile and mechanical stresses from the outside, preventing damage to the cable due to external forces during use. The copper tape layer 105b covers the outer surface of the fiber layer 105a with copper material in a mesh-like braid, providing electromagnetic shielding to ensure clear and stable signals inside the cable and prevent electrical faults or signal distortion caused by electromagnetic interference. The outer surface of the aluminum-plastic composite layer 105c is made of aluminum-plastic composite material, which combines the high strength of aluminum with the toughness of plastic. It has excellent corrosion resistance and heat insulation, enhancing the mechanical protection of the cable and effectively preventing damage to the cable from external environments such as moisture and chemical corrosion.
[0028] During use, the filler layer 102 provides structural support for the cable 101, preventing the penetration of external moisture or impurities and resisting mechanical damage. The protective component 104 provides additional physical protection. The barrier layer 104a mainly serves as heat insulation and physical protection. The rubber block 104b absorbs shock and reduces external impact. The fireproof layer 104c enhances the cable's fire resistance. The buffer zone forms thermal insulation, delaying the impact of fire on the cable and providing both fire protection and heat insulation. The fiber layer 105a withstands external tensile and mechanical stress. The copper tape layer 105b provides electromagnetic shielding. The aluminum-plastic composite layer 105c has corrosion resistance and heat insulation properties, enhancing the cable's mechanical protection. This reduces cable damage and improves performance.
[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A high-voltage cable structure for new energy vehicles, characterized in that: include: The cable unit (100) includes a cable (101), a filler layer (102) is fixedly connected to the outer surface of the cable (101), a first insulation layer (103) is fixedly connected to the outer surface of the filler layer (102), a protective component (104) is provided on the outer surface of the first insulation layer (103), a cable tie assembly (105) is provided on the outer surface of the protective component (104), and a second insulation layer (106) is provided on the outer surface of the cable tie assembly (105).
2. The high-voltage cable structure for new energy vehicles according to claim 1, characterized in that: The filler layer (102) is made of epoxy resin, the first insulating layer (103) is made of a material resistant to high temperature and corrosion, and the outer surface of the second insulating layer (106) is provided with a fireproof coating.
3. The high-voltage cable structure for new energy vehicles according to claim 1, characterized in that: The protective component (104) includes a barrier layer (104a), the inner wall of which is fixedly connected to the outer surface of the first insulating layer (103), and a plurality of rubber blocks (104b) are fixedly connected to the outer surface of the barrier layer (104a), and a fireproof layer (104c) is fixedly connected to the outer surface of the rubber blocks (104b).
4. The high-voltage cable structure for new energy vehicles according to claim 3, characterized in that: A buffer zone is provided on the adjacent sides of the fireproof layer (104c) and the barrier layer (104a). Both the fireproof layer (104c) and the barrier layer (104a) are heat insulation materials. The outer surfaces of both the fireproof layer (104c) and the barrier layer (104a) are provided with a corrosion-resistant coating.
5. The high-voltage cable structure for new energy vehicles according to claim 1, characterized in that: The cable tie assembly (105) includes a fiber layer (105a), the inner wall of which is fixedly connected to the outer surface of the fireproof layer (104c), a copper strip layer (105b) is fixedly connected to the outer surface of the fiber layer (105a), and an aluminum-plastic composite layer (105c) is fixedly connected to the outer surface of the copper strip layer (105b).
6. The high-voltage cable structure for new energy vehicles according to claim 5, characterized in that: The fiber layer (105a) and the copper strip layer (105b) are both cross-woven mesh tubes, and the outer surface of the aluminum-plastic composite layer (105c) is fixedly connected to the inner wall of the second insulating layer (106).