Full liquid cooling type high current density charging cable

Abstract

The utility model discloses a full liquid cooling type high-current density charging cable, which comprises a cable core formed by twisting a plurality of power wire cores, a plurality of control wire core groups and a ground wire, and a sheath layer coated on 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 first plastic film belt is wrapped outside the control wire core group, a metal braid layer is arranged outside the first plastic film belt, a second plastic film belt is wrapped outside the metal braid layer, and a plurality of strip-shaped aluminum foils are arranged on the surfaces, facing the metal braid layer, of the first plastic film belt and the second plastic film belt respectively. According to the utility model, while stable transmission and effective heat dissipation of high-power electric energy are realized, interference on signal transmission inside the cable in the electric energy transmission process can be effectively shielded, stability of signal transmission and electric energy transmission and safety of charging and electricity utilization can be improved, wear resistance, bending resistance and distortion resistance of the whole cable can be improved, and the service life of the cable is prolonged. The service life of the cable is prolonged.

Description

Technical Field

[0001] This utility model relates to a fully liquid-cooled high current density 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 requirements for charging time of new energy vehicles. Long charging times reduce efficiency, thus increasing the demand for fully liquid-cooled high-current-density charging cables for new energy vehicles.

[0003] To overcome the drawback of long charging times 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. They are also susceptible to interference from the power transmission process on the internal signal transmission, resulting in poor stability of signal and power transmission and poor safety of charging. Furthermore, the overall poor wear resistance, bending resistance, and torsion resistance of the cables lead to a short service life. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fully liquid-cooled high current density charging cable. This fully liquid-cooled high current density charging cable can achieve stable transmission of high power and effective heat dissipation, while effectively shielding the interference of power transmission process on the internal signal transmission of the cable, improving the stability of signal transmission and power transmission and the safety of charging, and also improving the overall wear resistance, bending resistance and torsion resistance of the cable, thus extending the service life of the cable.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a fully liquid-cooled high current density charging 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 outside 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 plastic film strip is wrapped around the outside of the control core group formed by twisting together at least two control cores. A metal braid layer is provided outside the first plastic film strip. A second plastic film strip is wrapped around the outside of the metal braid layer. Several strips of aluminum foil are arranged at intervals on the surface of the first plastic film strip and the second plastic film strip facing the metal braid layer.

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

[0007] 1. In the above scheme, a plurality of strip aluminum foils extending along the length direction of the first plastic film strip or the second plastic film strip are spaced apart in the width direction of the first plastic film strip or the second plastic film strip.

[0008] 2. In the above scheme, a plurality of strip aluminum foils extending along the width direction of the first plastic film strip or the second plastic film strip are spaced apart along the length direction of the first plastic film strip or the second plastic film strip.

[0009] 3. In the above scheme, the strip aluminum foil on the surface of the first plastic film strip and the second plastic film strip is formed by sputtering.

[0010] 4. In the above scheme, the metal braided layer is obtained by braiding bare copper wire.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] This utility model relates to a fully liquid-cooled high-current-density charging cable. A cooling tube is spaced around the outer side of the central conductor of the power core, 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 first plastic film strip is wrapped around the control core assembly, which is composed of at least two control cores twisted together. A metal braid layer is disposed outside the first plastic film strip, and a second plastic film strip is wrapped around the metal braid layer. Several spaced strips of aluminum foil are disposed on the surfaces of both the first and second plastic film strips facing the metal braid layer. This design achieves stable transmission of high-power electrical energy and effective heat dissipation, while effectively shielding the cable from interference with internal signal transmission during power transmission. This improves the stability of signal and power transmission, as well as the safety of charging. Furthermore, it enhances the overall wear resistance, bending resistance, and torsion resistance of the cable, extending its service life. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of the fully liquid-cooled high current density charging cable of this utility model;

[0014] Appendix Figure 2 This is a schematic diagram of the control wire core assembly in the charging cable of this utility model;

[0015] Appendix Figure 3 For the appendix Figure 2 Enlarged diagram of point A in the middle.

[0016] In the above figures: 1. Power conductor; 11. Center conductor; 111. Bare copper conductor; 112. Conductor braid layer; 12. Cooling pipe; 2. Control conductor group; 21. Control conductor; 3. Ground wire; 4. Sheath layer; 5. Cooling channel; 6. First plastic film strip; 7. Metal braid layer; 8. Second plastic film strip; 9. Strip aluminum foil; 10. Conductor; 13. Insulation layer; 14. Filler wire. Detailed Implementation

[0017] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0018] Example 1: A fully liquid-cooled high current density charging 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 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 tube 12 and the outer surface of the central conductor 11. A first plastic film strip 6 is wrapped around the outside of the control core group 2 consisting of at least two control cores 21 twisted together. A metal braided layer 7 is provided on the outside of the first plastic film strip 6. A second plastic film strip 8 is wrapped around the outside of the metal braided layer 7. Several strips of aluminum foil 9 are arranged at intervals on the surface of the first plastic film strip 6 and the second plastic film strip 8 facing the metal braided layer 7.

[0019] The aforementioned strip aluminum foils 9, which extend along the length of the first plastic film strip 6, are spaced apart along the width of the first plastic film strip 6.

[0020] The strip aluminum foil 9 on the surfaces of the first plastic film strip 6 and the second plastic film strip 8 are formed by sputtering.

[0021] The aforementioned metal braided layer 7 is obtained by braiding bare copper wire.

[0022] 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.

[0023] The filler line 12 mentioned above is cotton thread.

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

[0025] Example 2: A fully liquid-cooled high current density charging 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 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 tube 12 and the outer surface of the central conductor 11. A first plastic film strip 6 is wrapped around the outside of the control core group 2 consisting of at least two control cores 21 twisted together. A metal braided layer 7 is provided on the outside of the first plastic film strip 6. A second plastic film strip 8 is wrapped around the outside of the metal braided layer 7. Several strips of aluminum foil 9 are arranged at intervals on the surface of the first plastic film strip 6 and the second plastic film strip 8 facing the metal braided layer 7.

[0026] The aforementioned strip aluminum foils 9, which extend along the width direction of the second plastic film strip 8, are spaced apart along the length direction of the second plastic film strip 8.

[0027] The strip aluminum foil 9 on the surfaces of the first plastic film strip 6 and the second plastic film strip 8 are formed by sputtering.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] The filler line 12 mentioned above is a heat-resistant fiber line.

[0032] The cooling pipe 12 of the aforementioned power conductor 1 is coaxially arranged with the center conductor 11.

[0033] The aforementioned sheath layer 4 is a TPE sheath layer.

[0034] 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.

[0035] Both the control wire core 21 and the ground wire 3 mentioned above include a conductor 10 and an insulation layer 13 disposed on the outside of the conductor 10.

[0036] The above-mentioned fully liquid-cooled high current density charging cable can achieve stable transmission of high-power electrical energy and effective heat dissipation, while effectively shielding the interference of the power transmission process on the internal signal transmission of the cable, improving the stability of signal transmission and power transmission and the safety of charging, and also improving the overall wear resistance, bending resistance and torsion resistance of the cable, thus extending the service life of the cable.

[0037] 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 fully liquid-cooled high current density charging 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 tube (12) is provided on the outside of the center conductor (11) of the power core (1) at intervals, 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); a first plastic film strip (6) is wrapped around the outside of the control core group (2) consisting of at least two control cores (21) twisted together; a metal braided layer (7) is provided on the outside of the first plastic film strip (6); a second plastic film strip (8) is wrapped around the outside of the metal braided layer (7); and several strips of aluminum foil (9) are arranged at intervals on the surface of the first plastic film strip (6) and the second plastic film strip (8) facing the metal braided layer (7).

2. The fully liquid-cooled high current density charging cable according to claim 1, characterized in that: A plurality of strip aluminum foils (9) extending along the length direction of the first plastic film strip (6) or the second plastic film strip (8) are spaced apart along the width direction of the first plastic film strip (6) or the second plastic film strip (8).

3. The fully liquid-cooled high current density charging cable according to claim 1, characterized in that: A plurality of strip aluminum foils (9) extending along the width direction of the first plastic film strip (6) or the second plastic film strip (8) are spaced apart along the length direction of the first plastic film strip (6) or the second plastic film strip (8).

4. The fully liquid-cooled high current density charging cable according to claim 1, characterized in that: The strip aluminum foil (9) on the surface of the first plastic film strip (6) and the second plastic film strip (8) is formed by sputtering.

5. The fully liquid-cooled high current density charging cable according to claim 1, characterized in that: The metal braided layer (7) is obtained by braiding bare copper wire.

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