Contact type liquid cooling charging cable

Abstract

The utility model discloses a contact type liquid cooling charging cable, which comprises a cable core formed by twisting a plurality of power wire cores, a plurality of control wire cores and a ground wire, and a sheath layer wrapping the outer side of the cable core, and a cooling pipe is sleeved on the outer side of a central conductor of each power wire core at intervals. A cooling channel used for introducing a cooling medium is formed between the inner wall of the cooling pipe and the outer side surface of the central conductor, and at least one strip-shaped protruding part is arranged on the cooling pipe of the power wire core and located between the inner wall of the cooling pipe and the outer side surface of the central conductor. The strip-shaped protruding part is spirally arranged on the inner wall of the cooling pipe, and the strip-shaped protruding part is in abutting contact with the outer side surface of the center conductor. According to the utility model, the current-carrying capability of the cable can be improved so as to improve the charging efficiency, heat generated in the large current transmission process can be timely discharged, the efficiency and uniformity of cooling and heat dissipation of the central conductor can be improved, the service life of the cable is prolonged, and the performance stability in the use process is improved.

Description

Technical Field

[0001] This utility model relates to a contact-type liquid-cooled charging cable, belonging to the field of new energy and energy-saving technology. Background Technology

[0002] As new energy technologies become more mature, people's requirements for them are also increasing, including the requirement for longer charging times for new energy vehicles. Long charging times reduce efficiency, thus increasing the demand for contact-type liquid-cooled charging cables for new energy vehicles.

[0003] In order to overcome the shortcomings of long charging time and improve charging efficiency, the cables used for charging new energy in the current technology usually use high-flow cables. However, the heat dissipation of these cables usually relies on natural heat dissipation, which cannot dissipate the generated heat in time. In addition, the heat dissipation efficiency and uniformity of the central conductor are poor, which reduces the service life of the cable and the stability of its performance during use. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a contact-type liquid-cooled charging cable. This contact-type liquid-cooled charging cable can not only improve the current carrying capacity of the cable to improve the charging efficiency, but also dissipate the heat generated during the transmission of large current in a timely manner, and improve the efficiency and uniformity of cooling and heat dissipation of the center conductor, thereby extending the service life of the cable and the stability of its performance during use.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a contact-type liquid-cooled charging cable, comprising: a cable core formed by twisting together several power cores, several control cores and a ground wire, and a sheath layer covering the outside of the cable core. A cooling tube is spaced around the outer side of the central conductor of the power core, thereby forming a cooling channel for introducing a cooling medium between the inner wall of the cooling tube and the outer surface of the central conductor. At least one strip-shaped protrusion is provided on the cooling tube of the power core between the inner wall of the cooling tube and the outer surface of the central conductor. The strip-shaped protrusion is spirally arranged on the inner wall of the cooling tube and is in abutting contact with the outer surface of the central conductor.

[0006] The following are further improvements to the above technical solution:

[0007] 1. In the above scheme, the two spirally extending strip-shaped protrusions are arranged in a centrally symmetrical manner.

[0008] 2. In the above scheme, the cooling pipe of the power core is coaxially arranged with the center conductor.

[0009] 3. In the above scheme, the four power cores are arranged sequentially along the circumference inside the sheath layer, and the cooling pipes of adjacent power cores are in contact with each other by pressing.

[0010] 4. In the above scheme, the sheath layer is a TPU sheath layer or a TPE sheath layer.

[0011] 5. In the above scheme, the center conductor of the power core includes a bare copper conductor and a conductor braid layer covering the outside of the bare copper conductor.

[0012] 6. In the above scheme, both the control wire core and the ground wire include a conductor and an insulating layer disposed on the outside of the conductor.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This utility model relates to a contact-type liquid-cooled charging cable, in which a cooling tube is spaced around the outer side of the central conductor of the power core, thereby forming a cooling channel for the introduction of cooling medium between the inner wall of the cooling tube and the outer surface of the central conductor. At least one strip-shaped protrusion is provided on the cooling tube of the power core, located between the inner wall of the cooling tube and the outer surface of the central conductor. The strip-shaped protrusion is spirally arranged on the inner wall of the cooling tube and makes abutting contact with the outer surface of the central conductor. This not only improves the current carrying capacity of the cable to improve charging efficiency, but also allows for timely dissipation of heat generated during high current transmission. Furthermore, it increases the distance and time that the cooling medium flows within the cooling channel, improving the efficiency and uniformity of cooling and heat dissipation of the central conductor, extending the cable's service life and the stability of its performance during use. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the structure of the contact-type liquid-cooled charging cable of this utility model;

[0016] Appendix Figure 2 This is a schematic diagram of the power conductor in the contact-type liquid-cooled charging cable of this utility model;

[0017] Appendix Figure 3 This is a schematic diagram of the control conductor in the contact-type liquid-cooled charging cable of this utility model.

[0018] In the above attached diagram: 1. Power conductor; 11. Center conductor; 111. Bare copper conductor; 112. Conductor braid layer; 12. Cooling pipe; 2. Control conductor; 3. Ground wire; 4. Sheath layer; 5. Cooling channel; 6. Strip-shaped protrusion; 81. Conductor; 82. Insulation layer. Detailed Implementation

[0019] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0020] Example 1: A contact-type liquid-cooled charging cable includes: a cable core formed by twisting together several power cores 1, several control cores 2, and a ground wire 3, and a sheath layer 4 covering the outside of the cable core. A cooling tube 12 is spaced around the outer side of the central conductor 11 of the power core 1, thereby forming a cooling channel 5 for introducing a cooling medium between the inner wall of the cooling tube 12 and the outer surface of the central conductor 11. At least one strip-shaped protrusion 6 is provided on the cooling tube 12 of the power core 1 and between the inner wall of the cooling tube 12 and the outer surface of the central conductor 11. The strip-shaped protrusion 6 is spirally arranged on the inner wall of the cooling tube 12 and is in abutting contact with the outer surface of the central conductor 11.

[0021] The two spirally extended strip-shaped protrusions 6 are arranged in a centrally symmetrical manner.

[0022] The cooling pipe 12 of the aforementioned power conductor 1 is coaxially arranged with the center conductor 11.

[0023] The four power cores 1 are arranged sequentially along the circumference inside the sheath layer 4, and the cooling pipes 12 of adjacent power cores 1 are in contact with each other.

[0024] The aforementioned sheath layer 4 is a TPU sheath layer.

[0025] Example 2: A contact-type liquid-cooled charging cable includes: a cable core formed by twisting together several power cores 1, several control cores 2, and a ground wire 3, and a sheath layer 4 covering the outside of the cable core. A cooling tube 12 is spaced around the outer side of the central conductor 11 of the power core 1, thereby forming a cooling channel 5 for introducing a cooling medium between the inner wall of the cooling tube 12 and the outer surface of the central conductor 11. At least one strip-shaped protrusion 6 is provided on the cooling tube 12 of the power core 1 and between the inner wall of the cooling tube 12 and the outer surface of the central conductor 11. The strip-shaped protrusion 6 is spirally arranged on the inner wall of the cooling tube 12 and is in pressure contact with the outer surface of the central conductor 11.

[0026] The two spirally extended strip-shaped protrusions 6 are arranged in a centrally symmetrical manner.

[0027] The aforementioned sheath layer 4 is a TPE sheath layer.

[0028] The center conductor 11 of the aforementioned power core 1 includes a bare copper conductor 111 and a conductor braid layer 112 covering the outside of the bare copper conductor 111.

[0029] The aforementioned control wire core 2 and ground wire 3 both include a conductor 81 and an insulating layer 82 disposed on the outside of the conductor 81.

[0030] The use of the above-mentioned contact-type liquid-cooled charging cable can improve the current carrying capacity of the cable to improve charging efficiency, dissipate the heat generated during the transmission of large current in a timely manner, increase the distance and time of the cooling medium flowing in the cooling channel, improve the efficiency and uniformity of cooling and heat dissipation of the center conductor, and extend the service life of the cable and the stability of its performance during use.

[0031] 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 contact-type liquid-cooled charging cable, comprising: A cable core consisting of several power cores (1), several control cores (2) and a ground wire (3) twisted together, and a sheath layer (4) covering the outside of the cable core, characterized in that: a cooling tube (12) is provided at intervals on the outside of the center conductor (11) of the power core (1), thereby forming a cooling channel (5) for introducing cooling medium between the inner wall of the cooling tube (12) and the outer surface of the center conductor (11), and at least one strip-shaped protrusion (6) is provided on the cooling tube (12) of the power core (1) and between the inner wall of the cooling tube (12) and the outer surface of the center conductor (11), the strip-shaped protrusion (6) is spirally arranged on the inner wall of the cooling tube (12), and the strip-shaped protrusion (6) is in abutting contact with the outer surface of the center conductor (11).

2. The contact-type liquid-cooled charging cable according to claim 1, characterized in that: The two spirally extended strip-shaped protrusions (6) are arranged in a centrally symmetrical manner.

3. The contact-type liquid-cooled charging cable according to claim 1, characterized in that: The cooling pipe (12) of the power conductor (1) is coaxially arranged with the center conductor (11).

4. The contact-type liquid-cooled charging cable according to claim 1, characterized in that: The four power cores (1) are arranged circumferentially inside the sheath layer (4), and the cooling pipes (12) of adjacent power cores (1) are in contact with each other.

5. The contact-type liquid-cooled charging cable according to claim 1, characterized in that: The sheath layer (4) is a TPU sheath layer or a TPE sheath layer.

6. The contact-type liquid-cooled charging cable according to claim 1, characterized in that: The center conductor (11) of the power core (1) includes a bare copper conductor (111) and a conductor braid layer (112) covering the outside of the bare copper conductor (111).

7. The contact-type liquid-cooled charging cable according to claim 1, characterized in that: Both the control wire core (2) and the ground wire (3) include a conductor (81) and an insulating layer (82) disposed on the outside of the conductor (81).

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