Liquid cooling device for charging gun cable

Abstract

The utility model relates to the technical field of charging cables, and particularly discloses a liquid cooling device for a charging gun cable, which aims at solving the problem of poor heat dissipation and cooling effects of the existing electric automobile charging cable, and comprises a cable wire and a charging gun head communicated with the end part of the cable wire, the cable wire comprises a plurality of strands of wires and a grounding wire, and each wire is provided with an insulating layer, a shielding layer and a protective layer; a cooling pipe is wound on the outer side wall of the wire in a crossed mode, and the cooling pipe is of a fried dough twist-shaped structure with one end folded. The cooling pipes which are spirally and crossly wound are adopted, uniform and sufficient cooling can be carried out from the periphery of the wire, each cooling pipe is of a two-strand structure with one end folded back, liquid coolants can flow out from one end through a power pump, flow through the periphery of the main wire and then flow back from the other end, and recycling of the liquid coolants is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging cable technical field, specifically, relate to a liquid cooling device for charging gun cable. BACKGROUND

[0002] With the rapid development of new energy vehicles, electric vehicle charging equipment also faces more demands and challenges. In daily use, electric vehicles are charged through assembled charging piles, and the charging pile system mainly consists of electric vehicle charging piles, concentrators, battery management systems and charging management service platforms. In order to improve the charging efficiency of electric vehicles, some electric vehicles and their equipped charging equipment use large power charging guns, so they face the problem of how to effectively cool the charging cable.

[0003] For example, the patent with publication number CN217468057U provides a cable and a charging device. The cable includes an outer sheath, which is provided with at least one wire for transmitting power or electrical signals, at least one cooling pipe for transmitting heat, and a heat-conducting filler. The heat-conducting filler is at least filled between the at least one wire and the at least one cooling pipe, for conducting the heat generated by the at least one wire to the at least one cooling pipe. This cable can improve the heat conduction efficiency inside the cable and effectively reduce the temperature of the cable, thereby improving the service life and current-carrying capacity of the cable.

[0004] However, the existing cables for charging equipment as described above mostly use liquid cooling for heat dissipation, but the liquid cooling device involved has the problem of insufficient cooling of the cable wires by the liquid coolant and poor heat dissipation cooling effect. Utility model content

[0005] The utility model aims at solving the problem of poor heat dissipation cooling effect of the existing electric vehicle charging cable. The present application provides a liquid cooling device for charging gun cable, which adopts a spiral cross-wound cooling pipe that can uniformly and sufficiently cool the outer periphery of the wire, and the cooling pipe has a two-strand structure with one end folded back. The liquid coolant can be circulated by flowing out from one end, flowing through the outer periphery of the main wire, and then flowing back from the other end.

[0006] The utility model realizes the following technical solutions:

[0007] The utility model provides a liquid cooling device for charging gun cable, which comprises a cable wire and a charging gun head in communication with the end of the cable wire. The cable wire comprises a plurality of wires and a grounding wire, and the wires are provided with an insulating layer, a shielding layer and a protective layer. The cooling pipe is cross-wound on the outer side wall of the wire, and the cooling pipe has a twisted structure with one end folded.

[0008] Preferably, the feeding end and discharging end of the cooling pipe are located at one end of the wire close to the charging gun head, and both ends of the cooling pipe are communicated with the liquid cooling tank.

[0009] Preferably, a power pump is arranged at a position close to the discharging end of the cooling pipe, and the discharging end of the cooling pipe is communicated with the power pump.

[0010] Preferably, the plurality of wires include a plurality of main wires and a plurality of secondary wires, the plurality of main wires are spirally wound, and the plurality of secondary wires are arranged outside the outer wall of the plurality of main wires.

[0011] Preferably, the outer periphery of the main wire and the outer periphery of the secondary wire are respectively wrapped with the insulation layer.

[0012] Preferably, the shielding layer is wrapped outside the main wire and the secondary wire, and the grounding wire and the cooling pipe are located inside the shielding layer.

[0013] Preferably, the protective layer is arranged on the outer periphery of the shielding layer.

[0014] The technical scheme of the utility model has the following beneficial effects:

[0015] In the liquid cooling device for the charging gun cable, the cooling pipe spirally and crossly wound outside the wire periphery can uniformly and sufficiently cool the wire periphery, and the cooling pipe has a two-strand structure with one end folded back, so that the liquid coolant can be circulated by flowing out from one end, flowing around the wire periphery, and then flowing back from the other end. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a sectional view of the cable wire material in embodiment 1.

[0017] Fig. 2 It is a partial structure schematic view of the main wire in embodiment 1.

[0018] Fig. 3 It is a structure schematic view of the liquid cooling device for the charging gun cable in embodiment 1.

[0019] The drawing mark: 1-cable wire material, 2-charging gun head, 31-main wire, 32-secondary wire, 4-grounding wire, 5-insulation layer, 6-shielding layer, 7-protective layer, 8-cooling pipe, 9-liquid cooling tank. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described clearly and completely below. Among them, the unmarked specific conditions in the example are carried out according to conventional conditions or manufacturer's recommended conditions;The instruments and equipment or reagent raw materials used are not marked by the manufacturer, and are conventional products that can be purchased on the market. The following is a specific embodiment combined with the drawings.

[0021] As Figs. 1 to 3 The embodiment provides a liquid cooling device for charging gun cable, which comprises cable wire 1 and charging gun head 2 communicated with the end of cable wire 1;Cable wire 1 comprises a plurality of wires and ground wire 4, and the wires are provided with insulation layer 5, shielding layer 6 and protective layer 7;Cooling pipe 8 is spirally and crossly wound on the outer wall of the wire, and the cooling pipe 8 is in the shape of a twisted wire with one end folded.

[0022] In the liquid cooling device for charging gun cable of the embodiment, the cooling pipe 8 is spirally and crossly wound on the outer periphery of the wire, which can uniformly and fully cool the wire, and the cooling pipe 8 is in the shape of a twisted wire with one end folded, so that the liquid coolant can flow out from one end, flow around the outer periphery of the wire 31 and then flow back from the other end, thereby realizing the recycling of the liquid coolant.

[0023] In the embodiment, the inlet end and the outlet end of the cooling pipe 8 are located at one end of the wire close to the charging gun head 2, and the two ends of the cooling pipe 8 are communicated with the liquid cooling box 9;The power pump is arranged at the position close to the outlet end of the cooling pipe 8, and the outlet end of the cooling pipe 8 is communicated with the power pump.

[0024] In the embodiment, the plurality of wires comprises three main wires 31 and two secondary wires 32, the three main wires 31 are spirally wound, and the two secondary wires 32 are arranged on the outer wall of the plurality of main wires 31;The outer periphery of the main wire 31 and the outer periphery of the secondary wire 32 are respectively wrapped with the insulation layer 5;The shielding layer 6 is wrapped on the outside of the main wire 31 and the secondary wire 32, and the ground wire 4 and the cooling pipe 8 are located in the shielding layer 6;The protective layer 7 is arranged on the outer periphery of the shielding layer 6.

[0025] In addition, in the charging gun cable of the embodiment, the liquid coolant containing water, ethylene glycol, antioxidant, surfactant, corrosion inhibitor, nano silver microparticle, graphene nanosheet and a small amount of alumina nanoparticles is used as the condensate, wherein the atoms between the nano silver microparticle, graphene nanosheet and alumina nanoparticles have repulsive force, which can reduce the adhesion of the suspension, reduce the generation of solidified substances, maintain the flow rate and flowability of the cooling liquid, maintain the cooling efficiency, not only can improve the cooling effect of the wire, but also can maintain good cooling performance in the process of repeated recycling of the liquid coolant.

[0026] The above merely is preferred embodiment of the present utility model, and is not for limiting the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A liquid cooling device for a charging gun cable, characterized by, The cable wire (1) and the charging gun head (2) in communication with the end of the cable wire (1); The cable wire (1) includes a plurality of wires and a grounding wire (4), the wires are configured with an insulation layer (5), a shielding layer (6) and a protective layer (7); the outer wall of the wires is cross-wound with a cooling pipe (8), and the cooling pipe (8) is in a twisted structure with one end folded.

2. The liquid cooling device for a charging gun cable according to claim 1, characterized by, The inlet end and the outlet end of the cooling pipe (8) are located at one end of the wires close to the charging gun head (2), and both ends of the cooling pipe (8) are in communication with a liquid cooling box (9).

3. The liquid cooling device for a charging gun cable according to claim 2, characterized by, The liquid cooling box (9) is close to the position of the outlet end of the cooling pipe (8), and the outlet end of the cooling pipe (8) is in communication with the power pump.

4. The liquid cooling device for a charging gun cable according to any one of claims 1 to 3, characterized in that, The plurality of wires includes a plurality of main wires (31) and a plurality of secondary wires (32), the plurality of main wires (31) are spirally wound, and the secondary wires (32) are arranged outside the plurality of main wires (31).

5. The liquid cooling device for a charging gun cable according to claim 4, characterized by, The outer periphery of the main wire (31) and the outer periphery of the secondary wire (32) are respectively wrapped with the insulation layer (5).

6. The liquid cooling device for a charging gun cable according to claim 4, characterized by, The shielding layer (6) is wrapped outside the main wire (31) and the secondary wire (32), and the grounding wire (4) and the cooling pipe (8) are located inside the shielding layer (6).

7. The liquid cooling device for a charging gun cable according to claim 6, characterized in that, The protective layer (7) is arranged on the outer periphery of the shielding layer (6).

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