Liquid-cooled cable

Abstract

The utility model relates to a liquid-cooled cable. Cooling liquid can flow in the liquid-cooled cable. The liquid-cooled cable is provided with a sheath, at least one wire and at least one return pipe. The sheath surrounds the electric wire return pipe. The electric wire is provided with a plurality of core wires, a supporting piece and an insulating layer. The core wires are conductors and are mutually wound, and a hollow channel is formed in the center of the core wires. The supporting piece has flexibility and is hollow, and the supporting piece is arranged in the hollow channel in a penetrating mode. The insulating layer surrounds the core wire and the support member. And the return pipe is hollow. Cooling liquid can flow out from the hollow channel in the insulating layer and flow in from the backflow pipe. The support member can avoid deformation of the hollow channel in the center of the core wire to maintain the shape of the wire. Therefore, the supporting piece can ensure that the core wire can be in uniform contact with the cooling liquid, and the cooling effect of the liquid-cooled cable is further maintained.

Description

Technical Field

[0001] The utility model relates to a liquid cooling cable. Background Art

[0002] The charging cable of a charging gun is a charging transmission device for electric vehicles. To shorten charging time, the simplest and most intuitive method is to increase the charging power. However, as the current increases, the cable generates more heat, making it impossible to rely solely on the cable's natural cooling to dissipate heat.

[0003] Therefore, current charging gun cables are liquid-cooled. Liquid-cooled cables incorporate a liquid cooling circulation system within the cable, allowing the cooling and charging systems to coexist and interact. Specifically, depending on the coolant used, liquid-cooled cables can be divided into oil-cooled and water-cooled cables. The coolant in water-cooled cables is a non-insulating medium and must be separated from the wires, resulting in indirect cooling. The coolant in oil-cooled cables is an insulating medium, and the wires are immersed in the coolant, dissipating heat through circulation. The coolant in oil-cooled cables can directly contact the wires, resulting in direct cooling, so oil-cooled cables offer better cooling than water-cooled cables.

[0004] Cables consist of multiple strands of wire twisted together to increase transmission power. To increase the contact area between the coolant and the wires, existing cables are hollowed out with a central gap in the core, allowing the coolant to flow through the central channel. However, when the cable is bent, the core deforms, preventing even contact with the coolant, which in turn affects the cable's cooling efficiency. Utility Model Content

[0005] The utility model provides a liquid-cooling cable, in which cooling liquid can flow and ensure that the wires of the liquid-cooling cable are evenly in contact with the cooling liquid, thereby maintaining the cooling effect of the liquid-cooling cable.

[0006] The liquid-cooled cable proposed in this utility model has the following features:

[0007] a skin;

[0008] At least one wire disposed in the sheath, the at least one wire having:

[0009] A plurality of core wires, which are conductors and are intertwined with each other, and a hollow channel is formed in the center of the plurality of core wires;

[0010] a flexible and hollow support member passing through the hollow passage in the center of the plurality of core wires;

[0011] an insulating layer surrounding the plurality of core wires and the support member; the coolant can flow through the insulating layer;

[0012] At least one return pipe is hollow and is disposed in the outer skin; the coolant can flow in the at least one return pipe.

[0013] The advantage of this invention lies in the fact that the wires of the liquid-cooled cable have a support member. This support member, inserted through the center of the wire core, prevents deformation of the hollow channel in the core core, thereby maintaining the shape of the wire. This support member ensures that the core core is evenly exposed to the coolant, thereby maintaining the cooling effect of the liquid-cooled cable.

[0014] As the aforementioned liquid-cooling cable, the liquid-cooling cable has a signal line; the signal line is disposed in the outer sheath.

[0015] As for the aforementioned liquid-cooled cable, the liquid-cooled cable has a filler; the filler is disposed in the outer sheath and surrounds the at least one wire and the at least one return pipe.

[0016] As for the aforementioned liquid-cooled cable, the liquid-cooled cable has a filler; the filler is disposed in the outer sheath and surrounds the at least one electric wire, the at least one return pipe and the signal line.

[0017] As in the aforementioned liquid-cooled cable, the at least one electric wire comprises four electric wires in total.

[0018] As in the aforementioned liquid-cooled cable, the at least one return pipe comprises two return pipes.

[0019] As in the aforementioned liquid-cooled cable, wherein the support member is spiral-shaped.

[0020] As in the aforementioned liquid-cooled cable, the support member is a spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of the present utility model.

[0022] Figure 2 It is a three-dimensional schematic diagram of a cross section of the present invention. DETAILED DESCRIPTION

[0023] The following is a detailed description of the technical means used by the present invention to achieve the intended purpose of the present invention with reference to the drawings and preferred embodiments of the present invention.

[0024] Please refer to Figure 1 and Figure 2The present invention provides a liquid-cooled cable that can be connected to a liquid cooling circulation system and allows coolant to flow within the cable. The cable comprises a sheath 10, at least one wire 20, at least one return pipe 30, a signal line 40, and a filler 50. The wire 20, return pipe 30, signal line 40, and filler 50 are all disposed within the sheath 10. In other words, the sheath 10 encases the wire 20, return pipe 30, signal line 40, and filler 50.

[0025] The electric wire 20 has a plurality of core wires 21, a support member 22, and an insulating layer 23. The core wires 21 are conductors and are intertwined with each other, and a hollow channel is formed in the center of the core wires 21. The support member 22 is flexible and hollow, and the support member 22 is inserted into the hollow channel in the center of the core wires 21. In this embodiment, the support member 22 is a helical spring, but is not limited to this. The insulating layer 23 surrounds the core wires 21 and the support member 22. In other words, the insulating layer 23 is tubular and allows coolant to circulate in the insulating layer 23. Specifically, the coolant circulates in the hollow channel in the center of the core wire 21, and the support member 22 can maintain the shape of the hollow channel.

[0026] The return pipe 30 is hollow and runs through the entire liquid-cooled cable, allowing coolant to circulate within it. Specifically, the liquid-cooling circulation system allows coolant to flow from the cable 20 and back into the liquid-cooling circulation system through the return pipe 30. In this embodiment, the return pipe 30 is a flexible hollow tube. In other embodiments, the return pipe 30 may include a support member to prevent deformation, but this is not a limitation.

[0027] The signal line 40 is a common structure in conventional cables, so its detailed structure and function will not be described again. The filler 50 surrounds the wires 20, return tube 30, and signal line 40, while also supporting the shape of the outer sheath 10 to maintain the shape of the liquid-cooled cable and prevent the wires 20, return tube 30, and signal line 40 from becoming entangled.

[0028] In this embodiment, the at least one electrical wire 20 includes four electrical wires 20, and the at least one return pipe 30 includes two return pipes 30. A portion of the coolant flows out of the liquid cooling circulation system from two of the electrical wires 20 and returns to the liquid cooling circulation system through one of the return pipes 30. Another portion of the coolant flows out of the liquid cooling circulation system from the other two electrical wires 20 and returns to the liquid cooling circulation system through the other return pipe 30.

[0029] The advantage of the present invention lies in the fact that the wire 20 of the liquid-cooled cable has a support member 22. The support member 22 is inserted through the center of the core wire 21 of the wire 20, preventing deformation of the hollow channel in the center of the core wire 21 and maintaining the shape of the wire 20. This ensures that the core wire 21 is evenly exposed to the coolant, thereby maintaining the cooling effect of the liquid-cooled cable.

[0030] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A liquid cooling cable capable of circulating a cooling liquid, characterized in that: This liquid-cooled cable features: a skin; At least one wire disposed in the sheath, the at least one wire having: A plurality of core wires, which are conductors and are intertwined with each other, and a hollow channel is formed in the center of the plurality of core wires; a flexible and hollow support member passing through the hollow passage in the center of the plurality of core wires; an insulating layer surrounding the plurality of core wires and the support member; the coolant can flow through the insulating layer; At least one return pipe is hollow and is disposed in the outer skin; the coolant can flow in the at least one return pipe.

2. The liquid-cooled cable according to claim 1, characterized in that The liquid cooling cable has a signal line; the signal line is arranged in the outer sheath.

3. The liquid-cooled cable according to claim 1, characterized in that The liquid-cooling cable has a filler; the filler is arranged in the outer skin and surrounds the at least one electric wire and the at least one return pipe.

4. The liquid-cooled cable according to claim 2, characterized in that The liquid cooling cable has a filler; the filler is arranged in the outer skin and surrounds the at least one electric wire, the at least one return pipe and the signal line.

5. The liquid-cooled cable according to claim 1, characterized in that The at least one electric wire comprises four electric wires in total.

6. The liquid-cooled cable according to claim 1, characterized in that The at least one reflux pipe comprises two reflux pipes.

7. The liquid-cooled cable according to any one of claims 1 to 6, characterized in that: The support member is spiral-shaped.

8. The liquid-cooled cable according to any one of claims 1 to 6, characterized in that: The supporting member is a spring.

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