CN213183714U

CN213183714U - Liquid cooling cable for American standard direct current charging gun

Info

Publication number: CN213183714U
Application number: CN202022226429.6U
Authority: CN
Inventors: 臧昊哲; 杨国星; 臧重庆; 张艳丽
Original assignee: Luoyang Zhengqi Machinery Co ltd
Current assignee: Luoyang Zhengqi Machinery Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-05-11
Anticipated expiration: 2030-10-09

Abstract

A liquid cooling cable for a U.S. standard DC charging gun is an integrated cable, and nine wires are contained in an insulating outer cover: one direct current positive electrode liquid cooling bus and one direct current negative electrode liquid cooling bus are respectively arranged; one PE ground wire is arranged; the other six are signal lines. A soft lead is respectively arranged in the insulating sleeves of the direct current anode liquid cooling bus and the direct current cathode liquid cooling bus, a polytetrafluoroethylene tube is arranged in the soft lead, a cooling liquid outer channel is arranged between the insulating sleeves and the polytetrafluoroethylene tube, and the polytetrafluoroethylene tube is a cooling liquid inner channel. One end of the direct current anode liquid cooling bus and one end of the direct current cathode liquid cooling bus are respectively connected with the direct current anode liquid cooling conductive jack and the direct current cathode liquid cooling conductive jack; the other ends of the direct current anode liquid cooling bus and the direct current cathode liquid cooling bus are respectively connected with the liquid cooling electrodes, and the liquid cooling electrodes of the direct current anode and the direct current cathode are respectively provided with an inlet and an outlet of cooling liquid. The cooling liquid circularly flows in the direct current anode and direct current cathode liquid cooling buses, and can well dissipate and cool the soft wires of the cables and the conductive jacks of the charging guns.

Description

Liquid cooling cable for American standard direct current charging gun

Technical Field

The technology relates to the technical field of charging of new energy electric vehicles, in particular to a liquid cooling cable for a direct current charging gun of American standard.

Background

New energy electric vehicles are rapidly developed around the world because of no exhaust emission and no environmental pollution. New energy electric vehicles produced in China are already abroad and are sold all over the world. Meanwhile, a lot of new energy electric vehicles in the United states are imported in China. Whether the new energy electric automobile is a Chinese new energy electric automobile or a foreign new energy electric automobile, two main factors for restricting the development of the new energy electric automobile are provided at present: firstly, the battery has short cruising ability; secondly, the charging duration.

Compared with the national standard direct current charging gun in China, the direct current charging gun in the American standard has a completely different structure. The direct current positive pole and the direct current negative pole in the national standard direct current charging gun of China are male terminals; and the direct current positive pole and the direct current negative pole in the direct current charging gun of the American standard are female conductive jacks.

In new energy electric vehicles in the United states, the battery endurance capacity is continuously increased, and household electric cars capable of endurance of 400 kilometers after being charged once are published. The quick charging is a problem which is urgently expected to be solved by vehicle enterprises and vehicle owners.

At present, the way for rapidly charging new energy electric vehicles in various countries in the world is to improve the charging working voltage of a charging pile and increase the current output by charging the charging pile. With the progress of new energy electric vehicle battery technology, the fast charging problem of new energy electric vehicles is researched and solved in all countries in the world, and the thinking and the method are the same: improve the charging operating voltage who fills electric pile as far as, increase and fill electric pile and charge the electric current of output. The charging working voltage of the charging pile is increased to 1000V; the direct current output by the charging pile is increased to 300-600 amperes. The power of the high-power charging pile is manufactured, and the technical problem does not exist. What needs to be solved is the connection from the power source of the high-power charging pile to the charging gun. In the market, a dry cable connected with a standard direct current charging gun in the United states is internally provided with a soft lead wire with the thickness of 60 square millimeters and carries the current of 200 amperes. The soft conductor of the cable can only carry 200 amperes of direct current; the charging current of 300-600 amperes of direct current cannot be carried, otherwise, a fire disaster is caused, and an accident is caused.

Enlarging the section of the soft wire is theoretically feasible and practically infeasible. Because of the enlarged section of the soft wire, the volume of the cable is increased greatly, which is not ergonomic. In addition, the flexible wires and the conductive jacks in the U.S. standard DC charging gun have too many different outer diameter dimensions, which makes the connection between them difficult.

With the increase of export quantity of domestic new energy electric automobiles, the new energy electric automobiles exported to the United states need to meet the charging standard of the United states at the charging interface, and high-power quick charging is a development trend. Therefore, it is necessary to solve the problem of the cable for the dc charging gun of the american standard that if the cable carries the charging current of dc 300 + 600A, the outer diameter of the cable not only needs to conform to the human engineering, but also the cable needs to be able to work safely and reliably for a long time.

SUMMERY OF THE UTILITY MODEL

The content of the utility model is as follows: is a liquid cooling scheme. The liquid cooling cable for the standard DC charging gun in the United states is an integrated cable. The direct current positive and negative cables in the conductive jack can be introduced with circularly flowing cooling liquid, and the cooling liquid can directly reach the end part of the conductive jack. The heat generated by the soft conducting wire and the conducting jack in the charging process is taken away by the cooling liquid which flows circularly. Thus greatly improving the current-carrying capacity of the soft conductor; the current-carrying capacity of the conductive jack can be greatly improved. The volume of the cable is not increased compared with a dry cable, so that the cable meets the requirements of human engineering and use.

A liquid cooling cable for a U.S. standard DC charging gun is an integrated cable, and nine wires are contained in an insulating outer cover: one direct current positive electrode liquid cooling bus and one direct current negative electrode liquid cooling bus are respectively arranged; one PE ground wire is arranged; the other six are signal lines. The insulating sleeves of the direct-current positive electrode liquid-cooled bus and the direct-current negative electrode liquid-cooled bus are respectively internally provided with a soft lead, the soft leads comprise a cooling liquid inner channel and a soft lead, and the cooling liquid inner channel is a polytetrafluoroethylene tube and penetrates through the center of the soft lead. An outer cooling liquid channel with an annular section is arranged between the insulating sleeve and the soft lead. The direct current positive electrode and the direct current negative electrode liquid cooling bus are used in the direct current charging gun of the American standard; the joints at the other ends of the direct current anode and direct current cathode liquid cooling buses are dual-channel electrodes, the structures of the direct current anode and the direct current cathode are completely the same, and each electrode of the direct current anode and the direct current cathode liquid cooling electrodes is provided with an inlet and an outlet of cooling liquid; the two electrodes of the direct current positive electrode and the direct current negative electrode are connected with the output end of the charging pile power supply. The circularly flowing cooling liquid enters the inner channel of the liquid cooling cable from the liquid inlets of the liquid cooling double-channel electrodes of the direct current anode and the direct current cathode respectively, the cooling liquid reaches the first cavity chamber of the direct current anode and the direct current cathode conductive jack of the direct current charging gun meeting the American standard firstly, then returns to the second cavity chamber of the conductive jack, continues to return to the outer channel of the liquid cooling cable, passes through the soft wire to take away the heat of the soft wire, and returns to the cooling system for recycling after cooling through the cooling liquid outlet of the electrode. The cooling liquid circularly flows in the direct current anode and direct current cathode liquid cooling buses, so that the cable can be well cooled by heat dissipation aiming at the soft wires of the cable; simultaneously can be to the fine heat dissipation cooling of the electrically conductive jack of rifle that charges. The soft wire of the cable and the conductive jack of the charging gun can safely bear the direct current of 300-plus-600 amperes of charging current, and can reliably work, so that the problem of quick charging of the new energy electric automobile can be fundamentally solved.

Drawings

FIG. 1 is an external view of a liquid cooling cable for a U.S. standard DC charging gun

FIG. 2 is a schematic diagram of a liquid cooling cable for a U.S. standard DC charging gun

FIG. 3 is a cross-sectional view of a liquid cooling cable with a positive DC electrode or a negative DC electrode

FIG. 4 is a cross-sectional view showing the internal structure of the liquid-cooled electrode

FIG. 5 is a schematic view of the liquid-cooled electrode

FIG. 6 is a schematic cross-sectional view of a liquid-cooled conductive socket for a DC positive electrode and a DC negative electrode of a DC charging gun according to the American Standard

FIG. 7 is a cross-sectional view of a liquid-cooled conductive jack A-A

FIG. 8 axial cross-sectional view of a liquid cooled bus

In the figure: 1. U.S. standard dc charging guns; 2. a liquid cooled cable for a U.S. standard dc charging gun; 21. an integrated cable insulation outer cover; 22. a direct current positive electrode liquid cooling cable; 23. a direct current negative electrode liquid cooling cable; 23.1, a polytetrafluoroethylene tube; 23.2, soft leads; 23.3, a direct current positive electrode or a direct current negative electrode liquid cooling cable insulating outer sleeve; 23.4, cooling liquid inner channels; 23.5, cooling liquid outer channels. 24. A conductive jack in the charging gun; 24.0, communicating the cavity; 24.1, cooling liquid putting off; 24.2, a first hollow chamber; 24.3, a second hollow chamber; 24.4, conducting jack inner tube; 24.5, a clamping spring; 24.6, a tooth-shaped sealing groove of the horse teeth; 24.7, 0-shaped sealing ring; 24.8, a jack end; 24.9, a connecting end; 25. liquid cooling the electrodes; 25.1, an electrode cooling liquid inner pipe; 25.2, electrode pipelines; 25.3, external threads of the electrode pipeline; 25.4, locking the nut; 25.5, a sealing ring; 25.6, a tooth-shaped sealing groove of the horse teeth; 25.7, a lead connecting cavity; 25.8, a cooling liquid outlet; 25.9, a cooling liquid inlet; 25.10, an electrode body; 25.11, a mounting seat; 26. and locking the clamp.

Detailed Description

As shown in fig. 1, 2 and 3, the liquid cooling cable for the us standard dc charging gun is an integrated cable, as shown in fig. 2, and the liquid cooling cable 2 includes an integrated cable insulating outer cover 21; the insulating outer cover contains nine wires: one each of the direct current positive electrode liquid cooling bus 22 and the direct current negative electrode liquid cooling bus 23; one PE ground wire is arranged; the other six are signal lines.

The direct current positive electrode and the direct current negative electrode

liquid cooling lines

22 and 23 in the integrated cable are respectively provided; the two liquid cooling buses have the same structure. The structure is as follows: the connector at one end is the conductive receptacle 24 of the U.S. standard dc charging gun, which is used to fit into the U.S. standard dc charging gun; the other end of the connector is provided with a liquid cooling electrode 25 which is connected with a charging pile power supply; the two connectors are connected by liquid cooled

busbars

22, 23.

The conductive jack 24, as shown in fig. 6. The method is characterized in that: the shape is a step shaft shape, the inside is a through step-shaped communicating cavity 24.0, wherein the communicating cavity 24.0 of the small-diameter shaft is a lead connecting end 24.9; the communicating cavity 24.0 of the large diameter shaft is a socket end 24.8. The communicating cavity 24.0 of the small diameter shaft is used for semi-circle crimping of the soft lead 2. And a horse tooth-shaped sealing groove 24.6 is arranged on the outer cylindrical surface of the small-diameter shaft. The communication cavity 24.0 of the large-diameter shaft is a jack end 24.8, a jack corresponding to a male terminal of the charging socket is arranged on the end face of the jack end 24.8, a clamping spring 24.5 is arranged in the jack and used for clamping the terminal of the charging socket and attaching to the outer surface of the terminal of the charging socket, and when charging is conducted, good electrical connection between the terminal of the charging socket and the conductive jack 24 of the American standard direct current charging gun is guaranteed; a positioning flange is arranged at the joint of the jack end 24.8 and the connecting end 24.9, an annular groove is arranged on the outer circular surface of the positioning flange, and an O-shaped sealing ring 24.7 is arranged in the annular groove.

The inside of the conductive jack 24 is a through step communicating cavity 24.0, and the communicating cavity 24.0 extends to the jack end 24.8 and is sealed on the end face of the jack end 24.8 of the large-diameter shaft. A conductive jack inner tube 24.4 is arranged in a communicating cavity 24.0 of the small-diameter shaft, the outer diameter of the conductive jack inner tube 24.4 is smaller than the inner diameter of the communicating cavity 24.0, and the conductive jack inner tube 24.4 extends out of a connecting end 24.9; two symmetrical cooling liquid shunting ridges 24.1 are arranged in the communicating cavity 24.0 of the large-diameter shaft of the conductive jack 24, and the two symmetrical cooling liquid shunting ridges 24.1 divide the communicating cavity 24.0 of the large-diameter shaft of the conductive jack 24 into a first cavity chamber 24.2 and a second cavity chamber 24.3. The first hollow chamber 24.2 and the second hollow chamber 24.3 are communicated in the communication cavity 24.0 near the jack end 24.8.

The conductive receptacle 24 is a component within the U.S. standard dc charging gun and is a connector at one end of a liquid-cooled bus.

When the tail part of the conductive jack 24 is connected with the liquid cooling bus, one end of the inner tube 24.4 of the conductive jack is connected with the inner cooling liquid channel 23.4 of the liquid cooling bus; the other end of the inner tube 24.4 of the conductive jack is connected with a first hollow chamber 24.2 of the conductive jack 24; the second hollow chamber 24.3 of the conductive jack 24 is communicated with the cooling liquid outer channel 23.5 of the liquid cooling bus bar, and the first hollow chamber 24.2 and the second hollow chamber 24.3 of the conductive jack 24 are communicated in the communicating cavity 24.0 close to the jack end 24.8.

The horse teeth-shaped sealing groove 24.6 on the outer cylindrical surface of the small-diameter shaft of the conductive jack 24 is sleeved with an insulating outer sleeve 23.3 of a direct-current anode or direct-current cathode liquid cooling cable. Because the liquid cooling bus and the conductive jack 24 are filled with flowing cooling liquid with pressure, a serrated seal groove 24.6 is arranged on the outer cylindrical surface of the small-diameter shaft of the outer sheath direct current positive electrode or direct current negative electrode liquid cooling cable insulation outer sleeve 23.3 of the liquid cooling bus and the conductive jack 24, and after the direct current positive electrode or direct current negative electrode liquid cooling cable insulation outer sleeve 23.3 is connected with the connecting end 24.9 of the conductive jack 24 in a sleeved mode, the locking clamp 26 is used for locking and sealing. Smooth circulation of the cooling fluid within the fluid-cooled bus bar and the conductive jacks 24 can be achieved.

The liquid cooled electrodes 25 are shown in FIG. 5. The structure is characterized in that: the electrode comprises an electrode body, wherein one end of the electrode body is in threaded connection with a coaxial electrode pipeline 25.2; the electrode body is provided with an internal thread hole; one end of the electrode pipeline 25.2 is provided with an external thread 25.3 of the electrode pipeline, a locking nut 25.4 is arranged on the external thread 25.3 of the electrode pipeline at the screwed joint part of the electrode body and the electrode pipeline 25.2, a step groove is arranged on the locking nut 25.4, and a sealing ring 25.5 is arranged in the step groove. A horse tooth-shaped sealing groove 25.6 is arranged on the outer pipe wall of the electrode pipeline 25.2; the inner cavity of the electrode pipeline 25.2 is a lead connecting cavity 25.7 connected with the soft conductor wire 23.2, and the lead connecting cavity 25.7 is opened at the end face of the electrode pipeline 25.2; the electrode body is provided with a cooling liquid inlet 25.9 and a cooling liquid outlet 25.8; the quick change connectors are connected on the two ends of the connecting rod. The coolant outlet 25.8 is near the end of the electrode conduit 25.2 and the coolant inlet 25.9 is remote from the end of the electrode conduit 25.2. An electrode cooling liquid inner pipe 25.1 is arranged between the cooling liquid inlet 25.9 and the cooling liquid outlet 25.8 for isolation, and one end of the electrode cooling liquid inner pipe 25.1 is in threaded connection with an internal threaded hole 25.10 in the electrode; the other end of the electrode extends out of the wire connecting cavity 25.7, the electrode body is provided with a mounting seat 25.11, and the mounting seat 25.11 is provided with a mounting hole.

The cooling liquid inlet 25.9 is communicated with a cooling liquid inner channel 23.4 of the cable through an electrode cooling liquid inner pipe 25.1; the direct current anode or direct current cathode liquid cooling cable insulating outer sleeve 23.3 is sleeved on the horse teeth-shaped sealing groove 25.6 of the electrode pipeline 25.2 and is locked and sealed by a locking clamp 23.4; the cooling liquid outlet 25.8 is communicated with the cooling liquid outer channel 23.5 of the cable through an electrode pipeline 25.2; the soft lead 23.2 is pressed with the inner pipe wall of the electrode pipe 25.2 in a semicircular way.

The liquid cooled bus bar is constructed as shown in fig. 7. Liquid cooling bus 23 is constituted: an insulating outer sleeve 23.3 of a direct current anode or a direct current cathode liquid cooling cable; a soft wire 23.2; a coolant inner channel 23.4; external coolant channels 23.5. The liquid cooling bus 23 has a coolant inner passage 23.4 which is a polytetrafluoroethylene tube and has an inner bore which is the coolant inner passage 23.4. The annular gap between the inner pipe wall of the insulating outer sleeve 23.3 of the direct current positive electrode or direct current negative electrode liquid cooling cable and the outer wall of the soft lead 23.2 of the liquid cooling bus 23 is a cooling liquid outer channel 23.5 of the liquid cooling bus 23. The liquid cooling bus 23 is connected with the liquid cooling electrode 25, and a cooling liquid inner channel 23.4 of the liquid cooling bus 23 is communicated with a cooling liquid inlet 25.9 of the liquid cooling electrode 25; the cooling liquid outer channel 23.5 of the liquid cooling bus 23 is communicated with the cooling liquid outlet 25.8 of the liquid cooling electrode 25; the liquid cooling bus 23 is connected with the conductive jack 24 of the charging gun, and a cooling liquid inner channel 23.4 of the liquid cooling bus 23 is communicated with a first cavity chamber 24.2 of the conductive jack 24 of the charging gun; the external cooling liquid channel 23.5 of the liquid cooling bus 23 is communicated with the second hollow chamber 24.3 of the conductive jack 24 of the charging gun.

The soft lead 23.2 is internally provided with a polytetrafluoroethylene tube 23.1 in a penetrating manner, an inner hole of the polytetrafluoroethylene tube 23.1 is a cooling liquid inner channel 23.4, the cooling liquid inner channel 23.4 of the liquid cooling bus 23 is connected with the liquid cooling electrode 25, and an electrode cooling liquid inner tube 25.1 of the liquid cooling electrode 25 is sleeved with the polytetrafluoroethylene tube 23.1 of the liquid cooling bus 23 and is communicated with a cooling liquid inlet 25.9 of the liquid cooling electrode 25; is communicated with the first hollow chamber 24.2 of the conductive jack 24 of the charging gun; the external cooling liquid channel 23.5 of the liquid cooling bus 23 is communicated with the second hollow chamber 24.3 of the conductive jack 24 of the charging gun.

Claims

1. One end of a liquid cooling cable for an American standard direct current charging gun is connected with a American standard charging gun (1), and the other end of the liquid cooling cable is connected with a charging pile; the method is characterized in that: the liquid cooling cable (2) comprises a cable insulation outer cover (21), and a PE wire, six signal wires, a direct current anode liquid cooling bus (22) and a direct current cathode liquid cooling bus (23) are wrapped in the cable insulation outer cover (21); the direct current positive pole liquid cooling generating line (22), direct current negative pole liquid cooling generating line (23) structure are the same, and the one end of direct current positive pole liquid cooling generating line (22), direct current negative pole liquid cooling generating line (23) is connected with and accords with beautiful mark electrically conductive jack (24), and one end is connected with liquid cooling electrode (25) in addition.

2. The fluid cooled cable for a american standard dc charging gun as set forth in claim 1, wherein: the conductive jack (24) is in a step shaft shape, a communicating cavity (24.0) is arranged in the conductive jack, and the small-diameter shaft end is a wire connecting end (24.9); the large-diameter shaft end is a jack end (24.8); the communicating cavity (24.0) of the small-diameter shaft is used for being electrically connected with the direct-current positive liquid cooling bus (22) or the direct-current negative liquid cooling bus (23); a horse tooth-shaped sealing groove (24.6) is arranged on the outer cylindrical surface of the small-diameter shaft; a jack is arranged at the jack end (24.8), and a clamping spring (24.5) is arranged in the jack and used for clamping a male terminal of the charging socket; a positioning flange is arranged at the joint of the jack end (24.8) and the connecting end (24.9), an annular groove is arranged on the outer circular surface of the positioning flange, and an O-shaped sealing ring (24.7) is arranged in the annular groove.

3. The fluid cooled cable for a american standard dc charging gun as set forth in claim 1, wherein: a communicating cavity (24.0) in the conductive jack (24) extends towards the jack end (24.8) and is closed on the end surface of the jack end (24.8) of the large-diameter shaft; a conductive jack inner tube (24.4) is arranged in a communicating cavity (24.0) of the small-diameter shaft, the outer diameter of the conductive jack inner tube (24.4) is smaller than the inner diameter of the communicating cavity (24.0), and the conductive jack inner tube (24.4) extends out of a connecting end (24.9); two symmetrical cooling liquid shunting ridges (24.1) are arranged in a communicating cavity (24.0) of the large-diameter shaft of the conductive jack (24), and the communicating cavity (24.0) of the large-diameter shaft of the conductive jack (24) is divided into a first cavity chamber (24.2) and a second cavity chamber (24.3) by the two symmetrical cooling liquid shunting ridges (24.1); the first hollow chamber (24.2) is communicated with the second hollow chamber (24.3) in the communicating cavity (24.0) close to the jack end (24.8).

4. The fluid cooled cable for a american standard dc charging gun as set forth in claim 1, wherein: when the small-diameter shaft of the conductive jack (24) is connected with the liquid cooling bus, one end of the inner tube (24.4) of the conductive jack is connected with the cooling liquid inner channel (23.4) of the liquid cooling bus; the other end of the inner tube (24.4) of the conductive jack is connected with a first cavity chamber (24.2) of the conductive jack (24); the second cavity chamber (24.3) of the conductive jack (24) is communicated with the cooling liquid outer channel (23.5) of the liquid cooling bus, and the first cavity chamber (24.2) and the second cavity chamber (24.3) of the conductive jack (24) are communicated in the communicating cavity (24.0) close to the jack end (24.8).

5. The fluid cooled cable for a american standard dc charging gun as set forth in claim 1, wherein: a horse tooth-shaped sealing groove (24.6) is arranged on the outer cylindrical surface of the small-diameter shaft of the conductive jack (24), and a direct-current anode or direct-current cathode liquid cooling cable insulating outer sleeve (23.3) is sleeved on the horse tooth-shaped sealing groove; the liquid cooling bus and the conductive jack (24) are filled with flowing cooling liquid with pressure, after an insulating outer sleeve (23.3) of a direct current anode or direct current cathode liquid cooling cable is sleeved with a horse tooth-shaped sealing groove (24.6) on the outer cylindrical surface of a small-diameter shaft of the conductive jack (24), the insulating outer sleeve (23.3) is locked to the horse tooth-shaped sealing groove (24.6) through a locking clamp (26).

6. The fluid cooled cable for a american standard dc charging gun as set forth in claim 1, wherein: the electrode comprises an electrode body (25.10), wherein one end of the electrode body (25.10) is fixedly connected with a coaxial electrode pipeline (25.2); an internal threaded hole is formed in the electrode body (25.10), an external thread (25.3) of the electrode pipeline is arranged on the outer circular surface of one end of the electrode pipeline (25.2), and the electrode pipeline (25.2) is fixedly connected with the electrode body through threads; at the screwed joint part of the electrode pipeline (25.2) and the electrode body, a locking nut (25.4) is arranged on the external thread (25.3) of the electrode pipeline, a step groove is arranged on the locking nut (25.4), and a sealing ring (25.5) is arranged in the step groove; a horse tooth-shaped sealing groove (25.6) is arranged on the outer pipe wall of the electrode pipeline (25.2); the inner cavity of the electrode pipeline (25.2) is a lead connecting cavity (25.7) of the soft conductor wire (23.2), and the lead connecting cavity (25.7) is opened at the end face of the electrode pipeline (25.2); the electrode body is provided with a cooling liquid inlet (25.9) and a cooling liquid outlet (25.8), and quick-change connectors are connected to the cooling liquid inlet and the cooling liquid outlet; the cooling liquid outlet (25.8) is close to the end of the electrode pipeline (25.2), and the cooling liquid inlet (25.9) is far away from the end of the electrode pipeline (25.2); an electrode cooling liquid inner pipe (25.1) is arranged between the cooling liquid inlet (25.9) and the cooling liquid outlet (25.8) for isolation, and one end of the electrode cooling liquid inner pipe (25.1) is in threaded connection with an internal threaded hole of the electrode body (25.10); the other end of the electrode extends out of the lead connecting cavity (25.7), the electrode body (25.10) is also provided with a mounting seat (25.11), and the mounting seat (25.11) is provided with a mounting hole.

7. The fluid cooled cable for a american standard dc charging gun as set forth in claim 1, wherein: a cooling liquid inlet (25.9) of the liquid cooling electrode (25) is communicated with a cooling liquid inner channel (23.4) through an electrode cooling liquid inner pipe (25.1); the insulating outer sleeve (23.3) of the direct current anode or direct current cathode liquid cooling cable is sleeved on a horse tooth-shaped sealing groove (25.6) of the electrode pipeline (25.2) and is locked and sealed by a locking clamp (26); the cooling liquid outlet (25.8) is communicated with the cooling liquid outer channel (23.5) through an electrode pipeline (25.2); the soft lead (23.2) is pressed with the inner pipe wall of the electrode pipe (25.2) in a semicircular way.

8. The fluid cooled cable for a american standard dc charging gun as set forth in claim 1, wherein: the direct-current positive liquid cooling bus (22) or the direct-current negative liquid cooling bus (23) comprises a liquid cooling cable insulating outer sleeve (23.3), a soft lead (23.2), a cooling liquid inner channel (23.4) and a cooling liquid outer channel (23.5); a cooling liquid inner channel (23.4) of the direct current anode liquid cooling bus (22) or the direct current cathode liquid cooling bus (23) is formed by an inner hole of a polytetrafluoroethylene tube (23.1); an annular gap between the inner pipe wall of the liquid cooling cable insulating outer sleeve (23.3) and the outer wall of the soft lead (23.2) of the direct current anode liquid cooling bus (22) or the direct current cathode liquid cooling bus (23) is a cooling liquid outer channel (23.5); the direct-current positive liquid cooling bus (22) or the direct-current negative liquid cooling bus (23) is connected with the liquid cooling electrode (25), and a cooling liquid inner channel (23.4) of the liquid cooling bus (23) is communicated with a cooling liquid inlet (25.9) of the liquid cooling electrode (25); a cooling liquid outer channel (23.5) of the direct current anode liquid cooling bus (22) or the direct current cathode liquid cooling bus (23) is communicated with a cooling liquid outlet (25.8) of the liquid cooling electrode (25); the direct-current positive liquid cooling bus (22) or the direct-current negative liquid cooling bus (23) is connected with a conductive jack (24) of the charging gun, and a cooling liquid inner channel (23.4) of the direct-current positive liquid cooling bus (22) or the direct-current negative liquid cooling bus (23) is communicated with a first cavity chamber (24.2) of the conductive jack (24) of the charging gun; and a cooling liquid outer channel (23.5) of the direct current positive electrode liquid cooling bus (22) or the direct current negative electrode liquid cooling bus (23) is communicated with a second cavity chamber (24.3) of the conductive jack (24) of the charging gun.

9. The fluid cooled cable for a american standard dc charging gun as set forth in claim 1, wherein: the inner part of the soft lead (23.2) is provided with a polytetrafluoroethylene tube (23.1) in a penetrating way, the inner hole of the polytetrafluoroethylene tube (23.1) is a cooling liquid inner channel (23.4), and the cooling liquid inner channel (23.4) of the direct-current positive liquid cooling bus (22) or the direct-current negative liquid cooling bus (23) is connected with an electrode cooling liquid inner tube (25.1) of the liquid cooling electrode (25) in a sleeved way through the polytetrafluoroethylene tube (23.1) and communicated with a cooling liquid inlet (25.9) of the liquid cooling electrode (25); a cooling liquid inner channel (23.4) of the direct current anode liquid cooling bus (22) or the direct current cathode liquid cooling bus (23) is communicated with a first cavity chamber (24.2) of a conductive jack (24) of the charging gun; and a cooling liquid outer channel (23.5) of the direct current positive electrode liquid cooling bus (22) or the direct current negative electrode liquid cooling bus (23) is communicated with a second cavity chamber (24.3) of the conductive jack (24) of the charging gun.