A heat dissipation type charging gun cable
By combining a heat-insulating coating, heat-dissipating particles, and a heat conductor on the charging cable, the problem of temperature rise caused by sun exposure in hot weather is solved. This achieves rapid heat dissipation and improved tensile and torsional resistance, extending the cable's service life and reducing the risk of fire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ELECO ELECTRONICS TECH
- Filing Date
- 2025-05-16
- Publication Date
- 2026-07-07
AI Technical Summary
Electric vehicle charging cables are susceptible to increased internal temperature due to exposure to sunlight in hot weather, which may shorten their lifespan and increase the risk of fire.
The cable employs a combination design of heat-insulating coating, heat dissipation particles, and heat conductor. The heat-insulating coating reflects sunlight, the heat dissipation particles transfer heat to the heat conductor and dissipate it into the outside air, while the heat conductor and mesh layer prevent direct sunlight. The combination of elastic components and reinforcing core improves the cable's tensile and torsional resistance.
This enables rapid heat dissipation of the cable, preventing internal temperature rise, extending the cable's service life, and reducing the risk of fire.
Smart Images

Figure CN224472236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging gun cable technology, specifically a heat dissipation type charging gun cable. Background Technology
[0002] An electric vehicle is a car that uses a single battery as its energy storage power source. It uses the battery as an energy storage power source to provide electrical energy to the electric motor, which drives the electric motor to run and thus propels the car. Pure electric vehicles require charging cables to charge the battery.
[0003] Chinese patent CN 220731237 U discloses a high-efficiency heat dissipation type charging cable for new energy vehicles, including a heat conduction heat dissipation mechanism. The heat conduction heat dissipation mechanism includes an extruded inner bushing, a graphene tube is arranged at the central axis position inside the inner bushing, and irregularly shaped heat-conducting blocks are arranged on both sides of the outer wall of the graphene tube. Each irregularly shaped heat-conducting block has multiple heat-conducting columns arranged on the side away from the graphene tube, and the heat-conducting columns are arranged linearly at equal intervals. A metal shielding layer formed by metal wire braiding is arranged outside the inner bushing, and a protective outer jacket is extruded on the metal shielding layer.
[0004] However, the above solution has some problems: the charging cables used in electric vehicles are usually used outdoors. When encountering high temperatures, the scorching sun directly exposes the cables to the heat-conducting columns, which transfer heat to the irregularly shaped heat-conducting blocks inside the cable. This actually increases the internal temperature of the cable, which can lead to problems such as reduced cable life, circuit burnout, and fire. Utility Model Content
[0005] The purpose of this invention is to provide a heat-dissipating charging gun cable to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat dissipation charging gun cable, comprising: an outer sheath, wherein the outer end of the outer sheath is provided with a heat insulation coating, the inner end of the outer sheath is fixedly connected with a waterproof layer, the inner end of the waterproof layer is fixedly provided with a heat insulation layer, the inner end of the heat insulation layer is fixedly provided with a shielding layer, and the inner end of the shielding layer is fixedly provided with a sleeve.
[0007] The inner end of the sleeve is provided with an elastic component, and a conductor is clamped on the outer wall of the elastic component. An insulating layer is fixedly provided on the outer end of the conductor. Heat dissipation particles are filled between the inner side of the sleeve and the outer end of the elastic component. Several round holes are opened on the outer skin, waterproof layer, heat insulation layer, shielding layer and sleeve. A heat conductor is inserted into each round hole. The inner end of the heat conductor is located in the heat dissipation particles. A heat insulation sleeve is sleeved on the outer end of the heat conductor. The outer wall of the heat insulation sleeve and the inner wall of the round hole are fixedly bonded.
[0008] Preferably, the elastic component includes several elastic blocks, which are arc-shaped and arranged in a circle, with adjacent elastic blocks being fixedly connected by a connecting plate.
[0009] Preferably, each of the elastic blocks contains a conductor.
[0010] Preferably, a reinforcing core is fixedly installed between several of the connecting plates.
[0011] Preferably, the heat conductor is a thermally conductive silicone pillar, and the outer end of the heat conductor is flush with the outer end of the outer skin.
[0012] Preferably, a mesh layer is fixedly sleeved on the outer end of the outer skin.
[0013] Preferably, the inner end of the insulation layer has an insulation cavity.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] When charging a car using a charging gun cable, the conductor generates high temperatures. These high temperatures are quickly transferred to the heat dissipation particles, which then transfer the heat to the heat conductor, which in turn transfers the heat to the outside air, achieving rapid heat dissipation for the cable. At the same time, the heat insulation coating and mesh layer on the outer end of the outer sheath can prevent sunlight from shining on the cable and thus avoid affecting the internal temperature of the cable. Attached Figure Description
[0016] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the connection between the conductor and the elastic block in this utility model;
[0019] Figure 4 This is a schematic diagram showing the connection between the elastic component and the reinforcing core of this utility model.
[0020] In the diagram: 1. Elastic block; 2. Connecting plate; 3. Reinforcing core; 4. Insulation layer; 5. Conductor; 6. Sleeve; 7. Heat dissipation particles; 8. Shielding layer; 9. Heat insulation layer; 10. Heat insulation cavity; 11. Waterproof layer; 12. Outer skin; 13. Heat insulation coating; 14. Mesh layer; 15. Round hole; 16. Heat conductor; 17. Heat insulation sleeve. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] Please see Figures 1-4 This utility model provides a technical solution: a heat dissipation charging gun cable, including: an outer sheath 12, with a heat insulation coating 13 at the outer end of the outer sheath 12. The heat insulation coating 13 can reflect the heat radiated by the sun onto the cable, preventing the cable from being exposed to the sun and causing an increase in internal temperature. A waterproof layer 11 is fixedly connected to the inner end of the outer sheath 12, and a heat insulation layer 9 is fixedly provided at the inner end of the waterproof layer 11. The heat insulation layer 9 can insulate against heat, preventing the external temperature from affecting the conductor 5 inside the cable under high temperature weather or strong sunlight. A heat insulation cavity 10 is opened at the inner end of the heat insulation layer 9, and the heat insulation cavity 10 contains air. Air is a good heat insulation medium, further increasing the heat insulation effect of the heat insulation layer 9.
[0023] A shielding layer 8 is fixedly installed at the inner end of the heat insulation layer 9, and a sleeve 6 is fixedly installed at the inner end of the shielding layer 8. An elastic component is installed at the inner end of the sleeve 6, and a conductor 5 is clamped on the outer wall of the elastic component. An insulating layer 4 is fixedly installed at the outer end of the conductor 5. Heat dissipation particles 7 are filled between the inner side of the sleeve 6 and the outer end of the elastic component. The sleeve 6 constrains the heat dissipation particles 7, and the elastic component separates and fixes the conductor 5. The conductor 5 is formed by winding several copper wires. When charging with a cable, the heat generated by the conductor 5 is quickly and evenly distributed in the heat dissipation particles 7. Several round holes 15 are opened on the outer sheath 12, waterproof layer 11, heat insulation layer 9, shielding layer 8, and sleeve 6. A heat conductor 16 is inserted into each round hole 15. The inner end of the heat conductor 16 is located at the heat dissipation particles 7. Inside the heat dissipation particle 7, the outer end of the heat conductor 16 is fitted with a heat insulation sleeve 17. The outer wall of the heat insulation sleeve 17 is fixedly bonded to the inner wall of the round hole 15. The heat conductor 16 is a thermally conductive silicone pillar. The thermally conductive silicone pillar has good thermal conductivity but is not conductive. The outer end of the heat conductor 16 is flush with the outer end of the outer sheath 12. The heat dissipation particle 7 transfers the heat generated by the conductor 5 to the heat conductor 16. The heat conductor 16 transfers the heat to the outside air, thereby dissipating heat from the conductor 5. The outer end of the outer sheath 12 is fixedly fitted with a mesh layer 14. The mesh layer 14 shields the heat conductor 16 to prevent direct sunlight. The mesh layer 14 has good air permeability and prevents sunlight from irradiating the heat conductor 16 without affecting its heat dissipation, thus preventing heat from being transferred to the inside of the charging gun cable.
[0024] The elastic component includes several elastic blocks 1, which are arc-shaped and arranged in a circle. Adjacent elastic blocks 1 are fixedly connected by a connecting plate 2. Each elastic block 1 contains a conductor 5. The elastic component evenly distributes the conductors 5 within the heat dissipation particles 7, achieving uniform heat dissipation. At the same time, when the cable is run over by a vehicle, the elastic blocks 1 deform, preventing damage to the conductors 5 and increasing the service life of the charging gun cable.
[0025] A reinforcing core 3 is fixedly installed between several connecting plates 2. The reinforcing core 3 improves the overall tensile and torsional resistance of the charging gun cable.
[0026] In actual use, when charging a car with a charging gun cable, conductor 5 will generate high temperature. The high temperature is quickly transferred to the heat dissipation particles 7. The heat dissipation particles 7 transfer the heat to the heat conductor 16, and the heat conductor 16 transfers the heat to the outside air, thus achieving rapid heat dissipation of the cable. At the same time, the heat insulation coating 13 and the mesh layer 14 at the outer end of the outer sheath 12 can prevent sunlight from shining on the cable and avoid affecting the internal temperature of the cable.
[0027] 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 heat-dissipating charging gun cable, comprising: The outer skin (12) is characterized in that: the outer end of the outer skin (12) is provided with a heat insulation coating (13), the inner end of the outer skin (12) is fixedly connected with a waterproof layer (11), the inner end of the waterproof layer (11) is fixedly provided with a heat insulation layer (9), the inner end of the heat insulation layer (9) is fixedly provided with a shielding layer (8), and the inner end of the shielding layer (8) is fixedly provided with a sleeve (6). An elastic component is provided at the inner end of the sleeve (6), and a conductor (5) is clamped on the outer wall of the elastic component. An insulating layer (4) is fixedly provided at the outer end of the conductor (5). Heat dissipation particles (7) are filled between the inner side of the sleeve (6) and the outer end of the elastic component. Several round holes (15) are opened on the outer skin (12), waterproof layer (11), heat insulation layer (9), shielding layer (8) and sleeve (6). A heat conductor (16) is inserted into each round hole (15). The inner end of the heat conductor (16) is located at the heat dissipation particles. Inside the particle (7), the outer end of the heat conductor (16) is fitted with a heat insulation sleeve (17), the outer wall of the heat insulation sleeve (17) and the inner wall of the round hole (15) are fixedly bonded. The elastic component includes several elastic blocks (1), the elastic blocks (1) are arc-shaped, the several elastic blocks (1) are arranged in a circle, and adjacent two elastic blocks (1) are fixedly connected by a connecting plate (2). Each elastic block (1) is clamped with a conductor (5), and a reinforcing core (3) is fixedly installed between the several connecting plates (2).
2. The heat-dissipating charging gun cable according to claim 1, characterized in that: The heat conductor (16) is a thermally conductive silicone pillar, and the outer end of the heat conductor (16) is flush with the outer end of the outer skin (12).
3. The heat-dissipating charging gun cable according to claim 2, characterized in that: The outer end of the outer skin (12) is fixedly sleeved with a mesh layer (14).
4. The heat-dissipating charging gun cable according to claim 1, characterized in that: The inner end of the insulation layer (9) is provided with an insulation cavity (10).