Liquid cooling over-charging gun structure

Abstract

The utility model discloses a liquid cooling overcharge charging gun structure, which comprises a gun head and a charging wire, one end of a liquid feeding pipe and one end of a return pipe, which are positioned in the gun head, are connected with sealing pipes, and capillary tubes are arranged on two sides of the charging wire. The liquid feeding pipe and the sealing pipe above the charging line form a loop with the adjacent sealing pipe and the return pipe below through the capillary tube on one side of the charging line, and the return pipe and the sealing pipe above the charging line form a loop with the adjacent sealing pipe and the liquid feeding pipe below through the capillary tube on the other side of the charging line. According to the liquid cooling heat exchanger circulating pump, the sealing pipe and the capillary pipes which are connected with the liquid feeding pipe and the backflow pipe are arranged in the gun head, the capillary pipes are small in diameter, the heat exchange effect is better, the flow speed of cooling liquid is reduced, the heat exchange efficiency is improved, the capillary pipes are evenly distributed, heat exchange is more sufficient, and therefore the electric energy utilization rate of the liquid cooling heat exchanger circulating pump is increased; and the energy-saving and environment-friendly effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid-cooled charging guns, in particular to a structure of a liquid-cooled ultra-fast charging gun. Background Art

[0002] With the development of new energy vehicles, electric vehicles have expanded their territory and quickly occupied the market in the competition among various new energy types, becoming a crucial presence in the automotive industry. Electric vehicles store energy through charging, including slow charging and fast charging. Slow charging has a lower power and is cheaper, suitable for users with parking spaces. Fast charging is efficient and very convenient to use in case of tight time.

[0003] While electric vehicles are developing, charging technology is also developing rapidly, and liquid-cooled ultra-fast charging emerges as the times require. Since the power of super-fast charging is relatively large, a large amount of heat is generated. If directly cooled by natural heat dissipation, the effect is very poor. Failure to dissipate heat will affect the charging efficiency. To ensure the efficiency of ultra-fast charging, liquid-cooling technology is added. The coolant is driven by a heat exchanger to flow to exchange heat and cool the charging gun and the charging cable, ensuring that the ultra-fast charging gun works efficiently.

[0004] As is well known, liquid-cooled heat exchange takes time, that is, the coolant needs to contact the heat for a certain time to achieve heat exchange, and then the coolant flows back to the liquid-cooled heat exchanger for cooling to take away the heat. In the existing liquid-cooled ultra-fast charging gun, the liquid supply pipe and the return pipe are directly connected, and the coolant flows through the heating part without staying and directly flows back. This not only results in low heat exchange efficiency, but also low energy utilization rate due to ineffective heat exchange and the continuous operation of the circulation pump of the liquid-cooled heat exchanger, and there are defects. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model provides a structure of a liquid-cooled ultra-fast charging gun, which is used to solve the problems of low heat exchange efficiency and low energy utilization rate caused by the direct connection of the liquid supply pipe and the return pipe of the existing liquid-cooled ultra-fast charging gun.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A structure of a liquid-cooled ultra-fast charging gun includes a gun head and a charging cable. Charging heads and connecting sleeves are respectively installed at both ends of the gun head. The charging cable passes through the connecting sleeve and is connected to the charging head. A protective sleeve is arranged outside the charging cable, and the protective sleeve is connected to the connecting sleeve. The charging cable is in a flat structure. Liquid supply pipes and return pipes are respectively arranged along the direction of the charging cable above and below the charging cable inside the protective sleeve. The liquid supply pipe and the return pipe are arranged adjacent to each other, and the ends of the liquid supply pipe and the return pipe far from the gun head are connected to a liquid-cooled heat exchanger;

[0008] One end of the liquid delivery pipe and the reflux pipe located inside the gun head is connected with a sealing pipe. Capillary tubes are arranged on both sides of the charging wire. The liquid delivery pipe and the sealing pipe above the charging wire form a loop with the adjacent sealing pipe and reflux pipe below through the capillary tube on one side of the charging wire. The reflux pipe and the sealing pipe above the charging wire form a loop with the adjacent sealing pipe and liquid delivery pipe below through the capillary tube on the other side of the charging wire.

[0009] Preferably, the inside of the charging wire includes an insulating sleeve, and a live wire, a neutral wire, a PE wire, and a CP wire arranged side by side inside.

[0010] Preferably, the live wire, the neutral wire, and the PE wire are arranged in sequence and at the same height, and the CP wire is located between the neutral wire and the PE wire.

[0011] Preferably, the two groups of liquid delivery pipes and reflux pipes are respectively located above and below the positions between the live wire and the neutral wire and above and below the positions between the neutral wire and the PE wire.

[0012] Preferably, the capillary tubes are arranged equidistantly along the sealing pipe.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] By arranging a sealing pipe and capillary tubes connecting the liquid delivery pipe and the reflux pipe inside the gun head, the diameter of the capillary tubes is relatively small, the heat exchange effect is better, and the flow rate of the coolant is reduced to improve the heat exchange efficiency. A large number of capillary tubes are evenly distributed, and the heat exchange is more sufficient, thereby improving the power utilization rate of the circulating pump of the liquid-cooled heat exchanger and achieving the effect of energy conservation and environmental protection. It solves the problems of low heat exchange efficiency and low energy utilization rate caused by the direct connection of the liquid delivery pipe and the reflux pipe of the existing liquid-cooled ultra-fast charging gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the internal structure of the connection sleeve of the present utility model;

[0017] Figure 3 is a top view of the corresponding position of the capillary tube of the present utility model;

[0018] Figure 4 is a right view of the corresponding position of the capillary tube of the present utility model.

[0019] In the figure: 1, gun head; 2, charging wire; 201, insulating sleeve; 202, live wire; 203, neutral wire; 204, PE wire; 205, CP wire; 3, charging head; 4, connection sleeve; 5, protective sleeve; 6, liquid delivery pipe; 7, reflux pipe; 8, sealing pipe; 9, capillary tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1-4 shown, the present utility model provides a technical solution: a liquid-cooled ultra-fast charging gun structure, including a gun head 1 and a charging cable 2. Charging heads 3 and connection sleeves 4 are respectively installed at both ends of the gun head 1, and the charging cable 2 passes through the connection sleeve 4 and is connected to the charging head 3.

[0022] The charging cable 2 internally includes an insulating sleeve 201 and a live wire 202, a neutral wire 203, a PE wire 204, and a CP wire 205 arranged side by side inside. The live wire 202, the neutral wire 203, and the PE wire 204 are arranged in sequence and at the same height, and the CP wire 205 is located between the neutral wire 203 and the PE wire 204.

[0023] A protective sleeve 5 is arranged outside the charging cable 2. The protective sleeve 5 is connected to the connection sleeve 4. The charging cable 2 has a flat structure. Liquid supply pipes 6 and return pipes 7 are respectively arranged along the direction of the charging cable 2 above and below the charging cable 2 inside the protective sleeve 5. And the ends of the liquid supply pipes 6 and the return pipes 7 far from the gun head 1 are connected to a liquid-cooled heat exchanger. The liquid supply pipes 6 and the return pipes 7 are arranged adjacent to each other. Two groups of liquid supply pipes 6 and return pipes 7 are respectively located above and below the positions between the live wire 202 and the neutral wire 203 and above and below the positions between the neutral wire 203 and the PE wire 204.

[0024] One ends of the liquid supply pipes 6 and the return pipes 7 located inside the gun head 1 are both connected to a sealing pipe 8. Capillary tubes 9 are arranged on both sides of the charging cable 2. The capillary tubes 9 are arranged at equal intervals along the sealing pipe 8. The liquid supply pipe 6 and the sealing pipe 8 above the charging cable 2 and the adjacent sealing pipe 8 and the return pipe 7 below form a loop through the capillary tube 9 on one side of the charging cable 2. The return pipe 7 and the sealing pipe 8 above the charging cable 2 and the adjacent sealing pipe 8 and the liquid supply pipe 6 below form a loop through the capillary tube 9 on the other side of the charging cable 2.

[0025] Working principle:

[0026] The liquid-cooled heat exchanger cools down the coolant. The circulation pump simultaneously transports the coolant along the charging cable 2 to the gun head 1 through two groups of liquid delivery pipes 6. Inside the gun head 1, a sealed pipe 8 and a capillary 9 connecting the liquid delivery pipe 6 and the return pipe 7 are provided. The diameter of the capillary 9 is relatively small, resulting in better heat exchange effect. Moreover, reducing the flow rate of the coolant improves the heat exchange efficiency. Numerous capillaries 9 are evenly distributed, enabling more sufficient heat exchange, improving the power utilization efficiency of the circulation pump of the liquid-cooled heat exchanger, and achieving the effect of energy conservation and environmental protection. Then, it flows back to the liquid-cooled heat exchanger through two groups of return pipes 7 to be cooled again, achieving the liquid-cooling effect.

Claims

1. A liquid-cooled ultra-fast charging gun structure, comprising a gun head (1) and a charging cable (2). The two ends of the gun head (1) are respectively provided with a charging head (3) and a connecting sleeve (4). The charging cable (2) passes through the connecting sleeve (4) and is connected to the charging head (3), characterized in that: A protective sleeve (5) is provided on the outside of the charging cable (2). The protective sleeve (5) is connected to the connecting sleeve (4). The charging cable (2) has a flat structure. Liquid supply pipes (6) and return pipes (7) are respectively arranged along the direction of the charging cable (2) above and below the charging cable (2) inside the protective sleeve (5). The liquid supply pipe (6) and the return pipe (7) are arranged adjacent to each other, and one ends of the liquid supply pipe (6) and the return pipe (7) away from the gun head (1) are connected to a liquid cooling heat exchanger; One ends of the liquid supply pipe (6) and the return pipe (7) located inside the gun head (1) are both connected with a sealing pipe (8). Capillary tubes (9) are arranged on both sides of the charging cable (2). The liquid supply pipe (6) and the sealing pipe (8) above the charging cable (2) and the sealing pipe (8) and the return pipe (7) adjacent below form a loop through the capillary tube (9) on one side of the charging cable (2). The return pipe (7) and the sealing pipe (8) above the charging cable (2) and the sealing pipe (8) and the liquid supply pipe (6) adjacent below form a loop through the capillary tube (9) on the other side of the charging cable (2).

2. The structure of a liquid-cooled ultra-fast charging gun according to claim 1, wherein: The inside of the charging cable (2) includes an insulating sleeve (201) and a live wire (202), a neutral wire (203), a PE wire (204) and a CP wire (205) arranged side by side inside.

3. The structure of a liquid-cooled ultra-fast charging gun according to claim 2, characterized in that: The live wire (202), the neutral wire (203) and the PE wire (204) are arranged in sequence and at the same height. The CP wire (205) is located between the neutral wire (203) and the PE wire (204).

4. The structure of a liquid-cooled ultra-fast charging gun according to claim 3, characterized in that: Two groups of the liquid supply pipes (6) and the return pipes (7) are respectively located above and below the positions between the live wire (202) and the neutral wire (203) and above and below the positions between the neutral wire (203) and the PE wire (204).

5. The structure of a liquid-cooled ultra-fast charging gun according to claim 1, characterized in that: The capillary tubes (9) are arranged at equal intervals along the sealing pipes (8).

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