Power wire core and flexible high-power charging cable
By employing a cooling tube structure with fiberglass braided tube layers and silicone tube layers in the charging cable, the problems of poor flexibility and processing damage caused by the high hardness of the cooling tube are solved, thereby improving the flexibility and temperature resistance of the cable and enhancing the product quality.
Patent Information
- Application Number
- CN202422004432.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The use of fluoroplastics in the cooling tubes of existing charging cables results in high hardness and poor flexibility, affecting the bending performance of the cable and making the cooling tube walls prone to damage during processing.
The cooling tube structure adopts a layer of glass fiber braided tube on the inner wall and a tightly wrapped silicone tube layer. The glass fiber braid density is 90%~99% and the silicone tube layer hardness is 70 A~85 A, forming a medium flow channel between the central conductor and the cooling tube, which enhances flexibility and temperature resistance.
This improves the overall flexibility and temperature resistance of the cable, prevents the conductor from damaging the cooling tube wall during processing, and enhances product quality.
Smart Images
Figure CN223539356U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a power core and a flexible high-power charging cable, belonging to the field of new energy and energy-saving technology. Background Technology
[0002] In the prior art, the cooling tubes in charging cables are generally made of fluoroplastics, such as one of FEP / PFA / PTFE. Although fluoroplastics have good temperature resistance and wear resistance, they are hard and not flexible enough, resulting in poor overall bending performance of the cable and making it inconvenient to use. Summary of the Invention
[0003] The technical problem this invention aims to solve is to provide a power conductor core that can improve the overall flexibility and temperature resistance of the cable, and effectively prevent conductors entering the cooling pipe during processing from damaging the pipe wall, thereby improving product quality.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a power core, including: a central conductor and a cooling tube sleeved on the outside of the central conductor, wherein a medium flow channel for introducing a cooling medium is formed between the inner wall of the cooling tube and the central conductor, and the cooling tube further includes: a glass fiber braided tube layer with its inner wall facing the central conductor and a silicone tube layer tightly wrapped around the outside of the glass fiber braided tube layer.
[0005] The following are further improvements to the above technical solution:
[0006] 1. In the above scheme, the fiberglass braiding density of the fiberglass braided tube layer is 90%~99%.
[0007] 2. In the above scheme, the silicone tube layer is extruded and coated onto the outside of the fiberglass braided tube layer.
[0008] 3. In the above scheme, the hardness of the silicone tube layer is 70 A ~ 85 A.
[0009] 4. In the above scheme, the cooling pipe is coaxially arranged with the central conductor.
[0010] 5. In the above scheme, the center conductor includes a bare copper conductor and a conductor braid layer covering the outside of the bare copper conductor.
[0011] A flexible high-power charging cable is also provided, comprising: a cable core consisting of several power cores, several control core groups and a ground wire twisted together, and a sheath covering the outside of the cable core.
[0012] The following are further improvements to the above technical solution:
[0013] 1. In the above scheme, the control wire core group is formed by twisting together at least two control wire cores.
[0014] 2. In the above scheme, at least one control wire core group is covered with a shielding layer on the outside.
[0015] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0016] The power core of this utility model has a medium flow channel formed between the inner wall of the cooling tube and the central conductor for introducing the cooling medium. The cooling tube further includes: a glass fiber braided tube layer with its inner wall facing the central conductor and a silicone tube layer tightly wrapped around the outside of the glass fiber braided tube layer. This can not only improve the overall flexibility and temperature resistance of the cable, but also effectively prevent the conductor entering the cooling tube during processing from damaging the tube wall, thereby improving product quality. Attached Figure Description
[0017] Appendix Figure 1 This is a schematic diagram of the structure of the power wire core of this utility model;
[0018] Appendix Figure 2 This is a schematic diagram of the cooling pipe in the power wire core of this utility model;
[0019] Appendix Figure 3 This is a schematic diagram of the structure of the central conductor of the power wire core of this utility model.
[0020] In the above attached diagram: 1. Center conductor; 11. Bare copper conductor; 12. Conductor braid layer; 2. Cooling tube; 3. Dielectric flow channel; 4. Fiberglass braided tube layer; 5. Silicone tube layer; 7. Control wire core group; 71. Control wire core; 72. Shielding layer; 8. Ground wire; 9. Sheath layer; 10. Wrapping layer; 13. Filler wire. Detailed Implementation
[0021] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.
[0022] Example 1: A power core includes: a center conductor 1 and a cooling tube 2 sleeved on the outside of the center conductor 1. A medium flow channel 3 for introducing a cooling medium is formed between the inner wall of the cooling tube 2 and the center conductor 1. The cooling tube 2 further includes: a glass fiber braided tube layer 4 with its inner wall facing the center conductor 1 and a silicone tube layer 5 tightly wrapped around the outside of the glass fiber braided tube layer 4.
[0023] The fiberglass braided tube layer 4 has a fiberglass braiding density of 95%.
[0024] The silicone tube layer 5 is extruded and coated on the outside of the fiberglass braided tube layer 4 to improve the bonding force between the silicone tube layer and the fiberglass braided tube layer and prevent relative sliding between the two during use.
[0025] The hardness of the silicone tube layer 4 is 75A.
[0026] The cooling pipe 2 is coaxially arranged with the central conductor 1.
[0027] The center conductor 1 includes a bare copper conductor 11 and a conductor braid layer 12 covering the outside of the bare copper conductor 11.
[0028] Example 2: A flexible high-power charging cable, comprising: a cable core formed by twisting together several power cores, several control core groups 7 and a ground wire 8, and a sheath layer 9 covering the outside of the cable core;
[0029] The power core includes: a central conductor 1 and a cooling tube 2 sleeved on the outside of the central conductor 1. A medium flow channel 3 for introducing cooling medium is formed between the inner wall of the cooling tube 2 and the central conductor 1. The cooling tube 2 further includes: a glass fiber braided tube layer 4 with its inner wall facing the central conductor 1 and a silicone tube layer 5 tightly wrapped around the outside of the glass fiber braided tube layer 4.
[0030] The fiberglass braided tube layer 4 has a fiberglass braiding density of 98%; the silicone tube layer 4 has a hardness of 80 A.
[0031] The control core group 7 is formed by twisting together at least two control cores 71; at least one control core group 7 is covered with a shielding layer 72.
[0032] Both the control wire core 71 and the ground wire 8 include a conductor and an insulating layer disposed on the outside of the conductor.
[0033] A wrapping layer 10 is provided between the sheath layer 9 and the cable core. This wrapping layer 10 is formed by tightly wrapping non-woven fabric tape or aluminum alloy tape around the outside of the cable core.
[0034] The silicone tube layer and the fiberglass braided tube layer can be bonded by extrusion process, or they can be bonded by applying glue. Fiberglass itself is more resistant to high temperatures and acts as an inner protection near the central conductor, which can prevent the tube wall from being scratched when the conductor is inserted into the cooling tube during processing.
[0035] Using the aforementioned power core can improve the overall flexibility and temperature resistance of the cable, and effectively prevent conductors entering the cooling pipe during processing from damaging the pipe wall, thereby improving product quality.
[0036] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A power conductor, comprising: A central conductor (1) and a cooling pipe (2) sleeved on the outside of the central conductor (1), wherein a medium flow channel (3) for introducing cooling medium is formed between the inner wall of the cooling pipe (2) and the central conductor (1), characterized in that: the cooling pipe (2) further includes: a glass fiber braided tube layer (4) with its inner wall facing the central conductor (1) and a silicone tube layer (5) tightly wrapped around the outside of the glass fiber braided tube layer (4).
2. The power conductor according to claim 1, characterized in that: The fiberglass braiding density of the fiberglass braided tube layer (4) is 90%~99%.
3. The power conductor according to claim 1, characterized in that: The silicone tube layer (5) is extruded and wrapped around the outside of the glass fiber braided tube layer (4).
4. The power conductor according to claim 1, characterized in that: The hardness of the silicone tube layer (4) is 70 A ~ 85 A.
5. The power conductor according to claim 1, characterized in that: The cooling pipe (2) is coaxially arranged with the central conductor (1).
6. The power conductor according to claim 1, characterized in that: The central conductor (1) includes a bare copper conductor (11) and a conductor braid layer (12) covering the outside of the bare copper conductor (11).
7. A flexible high-power charging cable, characterized in that: include: A cable core consisting of several power cores as described in any one of claims 1 to 6, several control core groups (7) and a ground wire (8) twisted together, and a sheath layer (9) covering the outside of the cable core.
8. The flexible high-power charging cable according to claim 7, characterized in that: The control core group (7) is formed by twisting together at least two control cores (71).
9. The flexible high-power charging cable according to claim 7 or 8, characterized in that: At least one control wire core group (7) is covered with a shielding layer (72) on its outer side.