High current density super charging cable

Abstract

The invention discloses a high-current-density super charging cable which comprises a cable core formed by twisting a plurality of power wire cores, a plurality of control wire core sets and ground wires and a sheath layer wrapping the outer side of the cable core, and the outer side of a center conductor of each power wire core is sleeved with a cooling pipe at intervals. A first wrapping tape layer formed by winding a first wrapping tape and a second wrapping tape layer formed by winding a second wrapping tape are sequentially arranged on the outer side of a control wire core group formed by twisting at least two control wire cores, and at least two metal wires extending in the length directions of the first wrapping tape and the second wrapping tape are arranged in the first wrapping tape and the second wrapping tape respectively. While stable transmission and effective heat dissipation of high-power electric energy are achieved, the roundness and stability of the control wire core group structure can be improved, electromagnetic interference generated in the electric energy transmission process of the power wire cores can be effectively shielded, the stability of signal transmission is improved, and machining is convenient.

Description

Technical Field

[0001] This invention relates to a high current density supercharging 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 high-current-density supercharging cables for new energy vehicles.

[0003] To overcome the drawback of long charging time and improve charging efficiency, existing new energy charging cables typically use high-capacity cables. However, these cables usually rely on natural heat dissipation, which is ineffective. Furthermore, they have poor control over the roundness and stability of the core assembly structure, are susceptible to electromagnetic interference generated during power transmission, have poor signal transmission stability, and are difficult to process. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a high current density supercharging cable. This high current density supercharging cable can achieve stable transmission of high power and effective heat dissipation, while improving the roundness and stability of the control core structure, effectively shielding the electromagnetic interference generated during the power transmission of the power core, improving the stability of signal transmission, and is easy to process.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a high current density supercharging cable, comprising: a cable core formed by twisting together several power cores, several control core groups 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. A first wrapping layer formed by winding a first wrapping tape and a second wrapping layer formed by winding a second wrapping tape are sequentially arranged on the outer side of the control core group formed by twisting together at least two control cores. At least two metal wires extending along their respective length directions are arranged in the first wrapping tape and the second wrapping tape, which are spaced apart in the width direction of the first wrapping tape and the second wrapping tape. The first wrapping tape wrapped around the control core group has the opposite winding direction to the second wrapping layer wrapped around the first wrapping tape layer, so that the metal wires in the first wrapping tape and the metal wires in the second wrapping tape are arranged crosswise.

[0006] The following are further improvements to the above technical solution: 1. In the above scheme, both the first wrapping tape and the second wrapping tape are non-woven fabric tapes.

[0007] 2. In the above scheme, the metal wire is bare copper wire or tin-plated copper wire.

[0008] 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.

[0009] 4. In the above scheme, a filler wire is provided in the gap between the power core, the control core group and the ground wire, and the filler wire is in pressure contact with the adjacent power core, control core group or ground wire.

[0010] 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.

[0011] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: This invention relates to a high current density supercharging 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 a cooling medium between the inner wall of the cooling tube and the outer surface of the central conductor. A control core assembly, composed of at least two control cores twisted together, has a first wrapping layer formed by winding a first wrapping tape and a second wrapping layer formed by winding a second wrapping tape sequentially arranged on its outer side. At least two metal wires extending along their respective lengths are disposed within both the first and second wrapping tapes. The first wrapping tape, which is spaced apart in the width direction, and the second wrapping tape, which is wrapped around the outside of the control wire core group, have opposite winding directions. This allows the metal wires in the first wrapping tape and the second wrapping tape to be interlaced. This not only achieves stable transmission of high-power electrical energy and effective heat dissipation, but also improves the roundness and stability of the control wire core group structure. Furthermore, the metal wires in the two wrapping tapes form a mesh-like shielding structure, which effectively shields the electromagnetic interference generated during the transmission of power wire energy, improves the stability of signal transmission, and is easy to process. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of the high current density supercharging cable of the present invention; Appendix Figure 2 This is a schematic diagram of the control core assembly in the high current density supercharging cable of the present invention; Appendix Figure 3 For the appendix Figure 2 Enlarged view of point A in the middle; Appendix Figure 4 This is a schematic diagram of the power conductor in the high current density supercharging cable of the present invention.

[0013] In the above attached diagram: 1. Power conductor; 11. Center conductor; 111. Bare copper conductor; 112. Conductor braid layer; 12. Cooling tube; 2. Control conductor group; 21. Control conductor; 3. Ground wire; 4. Sheath layer; 5. Cooling channel; 6. First wrapping tape; 7. First wrapping tape layer; 8. Second wrapping tape; 9. Second wrapping tape layer; 10. Metal wire; 131. Conductor; 132. Insulation layer; 14. Filler wire. Detailed Implementation

[0014] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0015] Example 1: A high current density supercharging cable includes: a cable core consisting of several power cores 1, several control core groups 2, and a ground wire 3 twisted together, 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. A first wrapping tape 6 is sequentially arranged around the outer side of the control core group 2, which is formed by twisting together at least two control cores 21. The first wrapping layer 7 and the second wrapping layer 9 are formed by wrapping the second wrapping layer 8. At least two metal wires 10 extending along their respective length directions are provided in the first wrapping layer 6 and the second wrapping layer 8. The at least two metal wires 10 are spaced apart in the width direction of the first wrapping layer 6 and the second wrapping layer 8. The first wrapping layer 6 wrapped around the outside of the control wire core group 2 and the second wrapping layer 9 wrapped around the outside of the first wrapping layer 7 have opposite winding directions, so that the metal wires 10 in the first wrapping layer 6 and the metal wires 10 in the second wrapping layer 8 are arranged to cross each other.

[0016] The first wrapping tape 6 and the second wrapping tape 8 are both non-woven fabric tapes; the metal wire 10 is tin-plated copper wire.

[0017] 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.

[0018] The aforementioned control conductor groups 2 and ground wires 3 are spaced apart along the inner wall of the sheath layer 4 and located between two adjacent power conductors 1.

[0019] A filler wire 14 is provided in the gap between the power core 1, the control core group 2 and the ground wire 3, and the filler wire 14 is in pressure contact with the adjacent power core 1 and control core group 2.

[0020] The filler wire 12 is a heat-resistant fiber wire; 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; the sheath layer 4 is a TPE sheath layer.

[0021] Example 2: A high current density supercharging cable, comprising: a cable core formed by twisting together several power cores 1, several control core groups 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. A first wrapping tape 6 is sequentially arranged around the outer side of the control core group 2, which is formed by twisting together at least two control cores 21. The first wrapping layer 7 and the second wrapping layer 9 are formed by wrapping the second wrapping layer 8. At least two metal wires 10 extending along their respective length directions are provided in the first wrapping layer 6 and the second wrapping layer 8. The at least two metal wires 10 are spaced apart in the width direction of the first wrapping layer 6 and the second wrapping layer 8. The first wrapping layer 6 wrapped around the outside of the control wire core group 2 and the second wrapping layer 9 wrapped around the outside of the first wrapping layer 7 have opposite winding directions, so that the metal wires 10 in the first wrapping layer 6 and the metal wires 10 in the second wrapping layer 8 are arranged to cross each other.

[0022] The aforementioned metal wire 10 is a bare copper wire.

[0023] A filler wire 14 is provided in the gap between the power core 1, the control core group 2 and the ground wire 3, and the filler wire 14 is in pressure contact with the adjacent power core 1 and ground wire 3.

[0024] The filler wire 12 is cotton thread; the cooling pipe 12 of the power core 1 is coaxially arranged with the center conductor 11.

[0025] The aforementioned sheath layer 4 is a TPU sheath layer; the aforementioned control wire core 21 and ground wire 3 both include a conductor 131 and an insulation layer 132 disposed on the outside of the conductor 131.

[0026] The aforementioned high current density supercharging cable not only achieves stable transmission of high-power electrical energy and effective heat dissipation, but also improves the roundness and stability of the control core structure. Furthermore, the metal wires within the two wrapping tapes form a mesh-like shielding structure, effectively shielding electromagnetic interference generated during the transmission of power core electrical energy, thus improving the stability of signal transmission and facilitating processing.

[0027] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A high current density supercharging cable, comprising: A cable core consisting of several power cores (1), several control core groups (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 pipe (12) is spaced around the outside 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 pipe (12) and the outer surface of the central conductor (11); a first wrapping layer (7) formed by first wrapping tape (6) and a sheath layer (4) formed by at least two control cores (21) twisted together are sequentially arranged on the outside of the control core group (2). The second wrapping layer (9) is formed by the second wrapping tape (8). At least two metal wires (10) extending along their respective length directions are provided in both the first wrapping tape (6) and the second wrapping tape (8). The at least two metal wires (10) are spaced apart in the width direction of the first wrapping tape (6) and the second wrapping tape (8). The first wrapping tape (6) wrapped around the outside of the control wire core group (2) and the second wrapping layer (9) wrapped around the outside of the first wrapping layer (7) have opposite winding directions, so that the metal wires (10) in the first wrapping tape (6) and the metal wires (10) in the second wrapping tape (8) are arranged to cross each other.

2. The high current density supercharging cable according to claim 1, characterized in that: Both the first wrapping tape (6) and the second wrapping tape (8) are non-woven fabric tapes.

3. The high current density supercharging cable according to claim 1, characterized in that: The metal wire (10) is a bare copper wire or a tin-plated copper wire.

4. The high current density supercharging 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 high current density supercharging cable according to claim 1, characterized in that: A filler wire (14) is provided in the gap between the power core (1), the control core group (2) and the ground wire (3), and the filler wire (14) is in pressure contact with the adjacent power core (1), control core group (2) or ground wire (3).

6. The high current density supercharging 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).

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