Liquid cooling cable for new energy automobile and charging pile

Abstract

The invention discloses a liquid-cooled cable for a new energy automobile and a charging pile, and when the liquid-cooled cable is applied to the charging pile and charges an electric vehicle, during working, refrigerant fluid of a liquid-cooled pipe in a cable body passes through a first through chamber, a second through chamber, a first one-way valve and a second one-way valve of a power supply connector, and then flows through the first one-way valve and the second one-way valve; when the power supply connector is connected with the charging pile, two paths of convection currents with opposite flowing directions are formed, refrigerant fluid shunted from one path flows into the charging pile to achieve cooling and then flows back to the power supply connector, and when the refrigerant fluid in the liquid cooling pipe of the cable body flows to the charging connector, due to the arrangement of the two communicated liquid passing chambers, the refrigerant fluid is convenient to flow back through one liquid passing chamber, and the power supply connector is convenient to charge. Therefore, the refrigerant fluid in the liquid cooling pipe can achieve a liquid circulation effect in the charging connector, the cable body, the power supply connector and the charging pile, so that a heating wire and a control core wire in the cable body can be conveniently and efficiently cooled, and the charging efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of cooling cable structures for automobiles, and in particular relates to a liquid-cooled cable and a charging pile for new energy vehicles. Background Art

[0002] New energy vehicles have become the new mainstream, gradually replacing traditional fuel vehicles. Due to the limitation of long-term charging with large current, the connection between the conductor and the terminal will continue to heat up, forcing the charging pile to limit the current when the temperature rises. This situation not only greatly limits the charging efficiency and increases the charging time of the car, but also poses a fire hazard due to the severe heating of the cable.

[0003] In view of the rapid development of the new energy vehicle industry, there is an urgent need to develop a new type of charging pile that can not only meet the requirements of large current supercharging, shorten the charging time, but also extend the service life of the charging pile. Therefore, there is still room for improvement. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a liquid-cooled cable for new energy vehicles and a charging pile thereof, which can reduce the heating of the cable during charging and thereby improve the charging efficiency.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A liquid-cooled cable for new energy vehicles, comprising a cable body, a charging connector and a power supply connector; the cable body comprises an insulating sleeve, and a wire, a control core wire, and a liquid cooling tube arranged in the insulating sleeve; the charging connector is arranged at the end of the cable body, and the charging connector comprises a base, a diverter plate and a charging plug plate connected in sequence, the base is provided with a chamber, the cavity mouth of the chamber is arranged at the end of the cable body, the diverter plate is provided with two connected liquid chambers, the middle part of the diverter plate is provided with a channel, the channel is located between the two liquid chambers, the end of the cable body is located in the chamber, and the wire and the control core wire of the cable body are electrically connected to the charging plug plate after passing through the channel; the power supply connector is arranged at the other end of the cable body At one end, the power supply connector includes a base, a convection plate and a power supply plug board connected in sequence, the base is provided with a storage cavity, the cavity mouth of the storage cavity is arranged at the end of the cable body, the convection plate is provided with a relatively closed first through chamber and a second through chamber, the inner wall of the first through chamber is provided with a first one-way valve, the inner wall of the second through chamber is provided with a second one-way valve, the first one-way valve and the second one-way valve are in opposite directions, the middle part of the convection plate is provided with a through opening, the through opening is located between the first through chamber and the second through chamber, the power supply plug board is provided with two water-passing connectors respectively connected to the first one-way valve and the second one-way valve, the end of the cable body is located in the storage cavity, and the wires and control core wires of the cable body are electrically connected to the power supply plug board after passing through the through opening.

[0007] Furthermore, the outer circumference of both ends of the cable body is provided with a connecting ring, the inner circumference of the cavity opening of the chamber is provided with an annular connecting portion, and the annular connecting portion is detachably matched with the connecting ring; the inner circumference of the cavity opening of the storage cavity is provided with an annular mounting portion, and the annular mounting portion is detachably matched with the connecting ring.

[0008] Furthermore, a flexible sealing member is provided between the conductive wires and control core wires of the cable body and the passage, and a flexible sealing member is provided between the conductive wires and control core wires of the cable body and the through opening.

[0009] Furthermore, in the cable body, there are at least two liquid cooling tubes, the liquid cooling tubes are independent of the conductive wires and the control core wires, and the conductive wires and the control core wires are close to the liquid cooling tubes.

[0010] Furthermore, in the cable body, the liquid cooling tube is an annular liquid cooling tube, the wire is arranged in the annular liquid cooling tube, and the part of the annular liquid cooling tube located in the chamber or the storage cavity is provided with an opening, and the wire can pass through the opening and enter the channel or the through-portion.

[0011] Furthermore, the liquid cooling tube is arranged inside the wire, and the end of the liquid cooling tube located in the chamber or the receiving cavity extends out of the wire.

[0012] A charging pile comprises the above-mentioned liquid-cooling cable for new energy vehicles, a charging pile body, a power supply unit and a refrigeration unit; the charging pile body is provided with a connecting plug plate, the connecting plug plate is provided with two start-type water supply interfaces, the power supply plug plate is connected to the connecting plug plate, and the two water-through connectors of the power supply plug plate are respectively connected to the two start-type water supply interfaces; the power supply unit is arranged in the charging pile body, the power supply unit is electrically connected to the connecting plug plate, and supplies power to the outside through the liquid-cooling cable; the refrigeration unit is arranged in the charging pile body, the liquid cooling pipe of the cable body enters the refrigeration unit through the two water-through connectors, and the refrigeration unit is used to cool and circulate the refrigerant in the liquid cooling pipe.

[0013] Furthermore, the refrigeration unit includes a condensing tank, a water pump and a return pipe. The return pipe is arranged in the condensing tank. One end of the return pipe is connected to one of the start-up water supply interfaces through the water pump, and the other end of the return pipe is connected to another start-up water supply interface through a pipeline.

[0014] Furthermore, the start-up water supply interface includes a hole-shaped seat, a fixing plate, an elastic member and a sealed ball. The hole-shaped seat is arranged on the charging pile body, the hole-shaped seat has a through hole, the fixing plate is arranged on the hole-shaped seat, the fixing plate is opposite to the through hole, one end of the elastic member is connected to the fixing plate, the sealed ball is connected to the other end of the elastic member, and the sealed ball is abutted against the orifice of the through hole through the elastic action of the elastic member; a water outlet is provided on the outer peripheral surface of the water connection joint, and when the water connection joint is plugged into the through hole, the water connection joint squeezes the sealing ball, and the inside of the through hole is connected to the liquid cooling pipe through the water outlet.

[0015] The present invention has the following beneficial effects:

[0016] 1. When the liquid-cooled cable for new energy vehicles of the present invention is applied to a charging pile and is used to charge an electric vehicle, during operation, after the refrigerant in the liquid cooling tube in the cable body passes through the first through chamber, the second through chamber, the first one-way valve and the second one-way valve of the power supply connector, two convections with opposite flow directions will be formed, in which one of the diverted refrigerant flows into the charging pile to achieve cooling and then flows back to the power supply connector. When the refrigerant in the liquid cooling tube of the cable body flows to the charging connector, due to the arrangement of two interconnected liquid passage chambers, it is convenient for the refrigerant to flow back through one of the liquid passage chambers. Therefore, the refrigerant in the liquid cooling tube can achieve liquid circulation in the charging connector, the cable body, the power supply connector and the charging pile, thereby facilitating efficient cooling of the heated conductors and control core wires in the cable body, thereby improving the charging efficiency.

[0017] 2. The charging pile of the present invention adopts a liquid-cooled cable for new energy vehicles, wherein the power supply unit can transmit electricity to the outside through the liquid-cooled cable, and the refrigeration unit can cool the liquid-cooling tube in the cable body, while realizing the flow circulation of the refrigerant. Therefore, when the car is charging, the liquid-cooling tube of the cable body can timely cool the heated wires and control core wires to improve the charging efficiency, and can better meet the requirements of large-current overcharging and shortening the charging time, and extend the service life of the liquid-cooled cable and the charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the liquid-cooled cable for new energy vehicles of the present invention.

[0019] Figure 2 This is one of the cross-sectional views of the cable body of the present invention.

[0020] Figure 3 This is the second cross-sectional view of the cable body of the present invention.

[0021] Figure 4 This is the third cross-sectional view of the cable body of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the charging connector of the present invention.

[0023] Figure 6 It is a cross-sectional view of the charging connector of the present invention.

[0024] Figure 7 It is a schematic structural diagram of the power supply connector of the present invention.

[0025] Figure 8 It is a cross-sectional view of the power supply connector of the present invention.

[0026] Fig. 9 This is a schematic diagram of the liquid-cooled cable for new energy vehicles of the present invention being applied to a charging pile.

[0027] In the figure:

[0028] 1. Cable body; 11. Insulation sleeve; 12. Conductor; 13. Control core wire; 14. Liquid cooling tube;

[0029] 2. Charging connector; 21. Base; 211. Chamber; 22. Diverter plate; 221. Liquid chamber; 223. Channel; 23. Charging plug board;

[0030] 3. Power supply connector; 31. Base; 311. Storage chamber; 32. Convection plate; 321. First passage chamber; 322. Second passage chamber; 323. First one-way valve; 324. Second one-way valve; 325. Through port; 33. Power supply plug board; 331. Water connection connector; 332. Water through port; 333. Metal ring;

[0031] 4. Charging pile; 41. Connecting board; 42. Power supply unit; 43. Refrigeration unit. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The terms such as "upper", "inner", "middle", "left", "right" and "one" cited in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. The change or adjustment of their relative relationship shall also be regarded as the scope of the present invention without substantially changing the technical content.

[0033] Example 1

[0034] A liquid-cooled cable for new energy vehicles, such as Figures 1 to 8 As shown, the cable body 1 includes a charging connector 2 and a power supply connector 3 respectively arranged at both ends of the cable body 1; the charging connector 2 is used to connect to the car battery to power the car; the power supply connector 3 is used to connect to the charging pile 4, and the power generated by the charging pile 4 can be used to supply power to the outside through the liquid-cooled cable of the present invention (such as Fig. 9 ).

[0035] The cable body 1 of the present invention includes an insulating sleeve 11, and a conductor 12, a control core wire 13 and a liquid cooling tube 14 arranged in the insulating sleeve 11, wherein the number of the conductor 12, the control core wire 13 and the liquid cooling tube 14 can be adjusted according to actual conditions; a refrigerant flows in the liquid cooling tube 14, which is used to cool the conductor 12 and the control core wire 13 in the cable body 1 during operation, so as to improve the charging efficiency, thereby meeting the requirements of large current overcharging and shortening the charging time, and extending the service life of the liquid-cooled cable and the charging pile 4.

[0036] The charging connector 2 of the present invention includes a base 21, a diverter plate 22 arranged on the base 21, and a charging plug 23 arranged on the end surface of the diverter plate 22 away from the base 21. The base 21 and the diverter plate 22 of this embodiment can be an integral structure formed in one piece, or can be independent components assembled by screws or snap-on methods; the charging plug 23 can be installed on the diverter plate 22 by screwing, and the connection between the charging plug 23 and the diverter plate 22 will be sealed with a sealing ring or sealant to achieve a waterproof effect.

[0037] In this embodiment, the outer periphery of both ends of the cable body 1 is provided with a connecting ring, the base 21 is provided with a chamber 211, and the inner periphery of the cavity opening of the chamber 211 is provided with an annular connecting portion, and the chamber 211 is detachably matched with the connecting ring at the end of the cable body 1 through the annular connecting portion, and the detachable matching mode can be threaded matching or interference matching; two interconnected liquid chambers 221 are provided in the diverter plate 22, and a channel 223 is provided in the middle of the diverter plate 22, and the channel 223 is located between the two liquid chambers 221, and the channel 223 is not connected to the liquid chamber 221. The end of the cable body 1 is located in the chamber 211, and the wire 12 and the control core wire 13 of the cable body 1 are separated from the liquid cooling tube 14 and pass through the channel 223, and then are electrically connected to the charging plug board 23; wherein, a flexible seal is provided between the wire 12, the control core wire 13 of the cable body 1 and the channel 223, and the flexible seal can be a flexible sealant or a flexible rubber plug.

[0038] The power supply connector 3 of the present invention includes a base 31, a convection plate 32 arranged on the base 31, and a power supply plug board 33 arranged on the end surface of the convection plate 32 away from the base 31. The base 31 and the convection plate 32 of this embodiment can be an integral structure formed in one piece, or can be independent components assembled by screws or snap-on methods; the power supply plug board 33 can be installed on the convection plate 32 by screwing, and the connection between the power supply plug board 33 and the convection plate 32 will be sealed with a sealing ring or sealant to achieve a waterproof effect.

[0039] In this embodiment, the base 31 is provided with a storage cavity 311, and the inner circumferential surface of the cavity opening of the storage cavity 311 is provided with an annular mounting portion, and the storage cavity 311 is detachably matched with the end of the cable body 1 through the annular mounting portion, and the detachable matching method can be a threaded fit or an interference fit; a relatively closed first through chamber 321 and a second through chamber 322 are provided in the convection plate 32, and a first one-way valve 323 is provided on the inner wall of the first through chamber 321 close to the power supply plug board 33, and a second one-way valve 324 is provided on the inner wall of the second through chamber 322 close to the power supply plug board 33, and the flow directions of the first one-way valve 323 and the second one-way valve 324 are opposite; a through port 325 is provided in the middle of the convection plate 32, and the through port 325 is located in the first through chamber 321 and the second through chamber 322 The barrel mouth is not connected with the first through chamber 321 and the second through chamber 322. The end surface of the power supply plug board 33 away from the convection plate 32 is provided with two water joints 331 respectively connected with the first one-way valve 323 and the second one-way valve 324. The water joints 331 are arranged outward, so that the functions of cooling the refrigerant liquid and circulating the water in the liquid cooling tube 14 in the cable body 1 can be realized by connecting to the external water circulation system; the end of the cable body 1 is located in the storage cavity 311, and the wire 12 and the control core wire 13 of the cable body 1 pass through the through opening 325 and are electrically connected to the power supply plug board 33; wherein, a flexible sealing member is provided between the wire 12, the control core wire 13 of the cable body 1 and the through opening 325, and the flexible sealing member can be a flexible sealant or a flexible rubber plug.

[0040] Based on this, when the liquid-cooled cable for new energy vehicles of the present invention is applied to the charging pile 4 and charges the electric vehicle, during operation, the refrigerant in the liquid cooling tube 14 in the cable body 1 passes through the first through chamber 321, the second through chamber 322, the first one-way valve 323 and the second one-way valve 324 of the power supply connector 3, and two convections with opposite flow directions will be formed. One of the diverted refrigerant will flow into the charging pile 4 to achieve cooling and then flow back to the power supply connector 3. When the refrigerant in the liquid cooling tube 14 of the cable body 1 flows to the charging connector 2, due to the two interconnected liquid chambers 221, it is convenient for the refrigerant to flow back through one of the liquid chambers 221. Therefore, the refrigerant in the liquid cooling tube 14 can realize the effect of liquid circulation in the charging connector 2, the cable body 1, the power supply connector 3 and the charging pile 4, thereby facilitating the efficient cooling of the heated conductor 12 and the control core wire 13 in the cable body 1, thereby improving the charging efficiency. At the same time, in actual application of the present invention, using the liquid-cooled cable for new energy vehicles of the present invention and the corresponding matching charging pile 4, the charging amount of the new energy vehicle can reach 80% when charging for 10 minutes, which is 20 minutes shorter than the charging time of the ordinary charging pile 4. Therefore, it can better meet the requirements of large current overcharging and shortening the charging time, and extend the service life of the liquid cooling cable and the charging pile 4.

[0041] In order to improve the versatility of the liquid-cooled cable of the present invention and to meet the cooling requirements of cable bodies 1 of different structures, the adaptability improvements of different cable bodies 1 are introduced in detail below:

[0042] 1) If Figure 2 As shown, in the cable body 1, there are at least two liquid cooling tubes 14, and the liquid cooling tubes 14 are independent of the conductor 12 and the control core wire 13. The conductor 12 and the control core wire 13 are close to the liquid cooling tubes 14, so that the liquid cooling tubes 14 can be used to cool the conductor 12 and the control core wire 13 when they are working and generating heat; wherein the liquid cooling tube 14 is divided into two parts, and the two parts of the liquid cooling tubes 14 realize convection through the first through chamber 321 and the second through chamber 322, thereby facilitating the water circulation cooling function of the liquid cooling tube 14 in the cable body 1.

[0043] 2) If Figure 3 As shown, in the cable body 1, the liquid cooling tube 14 adopts an annular liquid cooling tube 14, which is formed by sleeves of a large and a small pipe, the refrigerant flows in the annular channel 223, and the wire 12 is arranged in the annular liquid cooling tube 14, and the part of the annular liquid cooling tube 14 located in the chamber 211 or the receiving chamber 311 is provided with an opening, and the wire 12 can enter the channel 223 or the through-port 325 after passing through the opening. Therefore, the interference between the wire 12 and the annular liquid cooling tube 14 can be reduced.

[0044] 3) If Figure 4 As shown, the liquid cooling tube 14 is arranged inside the wire 12, and the end of the liquid cooling tube 14 located in the chamber 211 or the storage cavity 311 extends out of the wire 12 to facilitate separation of the liquid cooling tube 14 and the wire 12, thereby realizing the functions of power supply and cable cooling.

[0045] Example 2

[0046] Embodiment 2 mainly uses the liquid-cooling cable for new energy vehicles of Embodiment 1 in a charging pile 4, thereby forming a product that can be implemented in a supporting manner. The charging pile 4 of the present invention is introduced below.

[0047] A charging pile 4, such as Figures 1 to 9 As shown, it includes the liquid-cooled cable for new energy vehicles of embodiment 1, the charging pile 4 body, and the power supply unit 42 and the refrigeration unit 43 arranged on the charging pile 4 body; the liquid-cooled cable for new energy vehicles is connected to the charging pile 4 body through the power supply connector 3, and the wire 12 and control information of the cable body 1 are connected to the power supply unit 42, and the liquid cooling pipe 14 of the cable body 1 is connected to the refrigeration unit 43 through the power supply connector 3. Therefore, when the charging pile 4 and the liquid-cooled cable are used to charge the car, the power supply unit 42 works to realize the external power supply, and the refrigeration unit 43 works to realize the cooling and water circulation of the refrigerant flowing into the cable body 1.

[0048] Among them, the main body of the charging pile 4 is provided with a connecting plug plate 41, which is used to connect the power supply plug plate 33 of the liquid cooling cable, and the connecting plug plate 41 is provided with two start-type water supply interfaces, and the two start-type water supply interfaces correspond to the two water connection connectors 331 respectively; the power supply plug plate 33 is connected to the connecting plug plate 41, and the two water connection connectors 331 of the power supply plug plate 33 are respectively connected to the two start-type water supply interfaces.

[0049] The power supply unit 42 is disposed in the main body of the charging pile 4. The power supply unit 42 may adopt a municipal power supply system or a solar power supply system, etc. The power supply unit 42 is electrically connected to the connecting plug board 41 and supplies power to the outside through a liquid cooling cable.

[0050] The refrigeration unit 43 is arranged in the main body of the charging pile 4, and the liquid cooling pipe 14 of the cable body 1 enters the refrigeration unit 43 through two water connection joints 331, and the refrigeration unit 43 is used to cool and circulate the refrigerant in the liquid cooling pipe 14.

[0051] The refrigeration unit 43 of this embodiment includes a condensation tank, a water pump and a return pipe. The return pipe is arranged in the condensation tank. One end of the return pipe is connected to a start-up water delivery interface of the water pump, and the other end of the return pipe is connected to another start-up water delivery interface through a pipeline. Therefore, after the liquid cooling pipe 14 exchanges heat with the conductor 12 and the control core wire 13, the hot water is transferred to the refrigeration unit 43, and the hot water is cooled by the condensation tank, and then the cold water is re-transmitted to the liquid cooling pipe 14 of the cable body 1 through the pumping action of the water pump, thereby realizing the cooling and water circulation of the refrigerant in the liquid cooling pipe 14, and at the same time, it can meet the requirements of large current overcharging and shortening the charging time, and extend the service life of the liquid cooling cable and the charging pile 4.

[0052] In this embodiment, the start-up water delivery interface includes a hole-shaped seat, a fixing plate, an elastic member and a sealed ball. The hole-shaped seat is arranged on the main body of the charging pile 4. The hole-shaped seat has a through hole. The fixing plate is L-shaped and is arranged on the hole-shaped seat. One end of the fixing plate is opposite to the through hole. The elastic member can be a spring. One end of the elastic member is connected to the fixing plate. The sealed ball is connected to the other end of the elastic member. The sealed ball is offset against the orifice of the through hole through the elastic action of the elastic member to achieve automatic sealing.

[0053] A water port 332 is provided on the outer circumference of the water connection joint 331 of the power supply connector 3, and a metal ring 333 is embedded on the outer circumference of the water connection joint 331, and a magnetic ring is embedded on the inner circumference of the through hole. When the water connection joint is plugged into the through hole, the metal ring 333 and the magnetic ring are magnetically attracted to each other to keep the water connection joint 331 in a relatively fixed state. At the same time, the water connection joint 331 squeezes the sealing ball to make the inside of the through hole communicate with the liquid cooling pipe 14 through the water port 332, thereby realizing the function of circulation of the refrigerant in the liquid cooling pipe 14 and the refrigeration unit 43.

[0054] To sum up, the charging pile 4 of the present invention adopts a liquid-cooled cable for new energy vehicles, wherein the power supply unit 42 can transmit electricity to the outside through the liquid-cooled cable, and the refrigeration unit 43 can cool the liquid cooling tube 14 in the cable body 1, and realize the flow circulation of the refrigerant. Therefore, when the car is charging, the liquid cooling tube 14 of the cable body 1 can timely cool the heated wire 12 and the control core wire 13 to improve the charging efficiency, and can better meet the requirements of large current overcharging and shortening the charging time, and extend the service life of the liquid cooling cable and the charging pile 4.

[0055] The implementation methods of the present invention are not limited to this. According to the above content of the present invention, using common technical knowledge and customary means in the field, without departing from the above basic technical ideas of the present invention, the present invention can also make other various forms of modification, replacement or combination, all of which fall within the scope of protection of the present invention.

Claims

1. A liquid-cooled cable for new energy vehicles, characterized in that: include: A cable body, the cable body comprising an insulating sleeve, and a conductor, a control core wire, and a liquid cooling tube arranged in the insulating sleeve; A charging connector, the charging connector is arranged at the end of the cable body, the charging connector comprises a base, a shunt plate and a charging plug plate which are connected in sequence, the base is provided with a chamber, the cavity of the chamber is arranged at the end of the cable body, the shunt plate is provided with two connected liquid chambers, the middle part of the shunt plate is provided with a channel, the channel is located between the two liquid chambers, the end of the cable body is located in the chamber, and the wire and the control core wire of the cable body are electrically connected to the charging plug plate after passing through the channel; A power supply connector, which is arranged at the other end of the cable body, and includes a base, a convection plate and a power supply plug board which are connected in sequence. The base is provided with a storage cavity, and the cavity mouth of the storage cavity is arranged at the end of the cable body. A relatively closed first through chamber and a second through chamber are arranged in the convection plate, and a first one-way valve is arranged on the inner wall of the first through chamber, and a second one-way valve is arranged on the inner wall of the second through chamber. The directions of the first one-way valve and the second one-way valve are opposite, and a through port is arranged in the middle of the convection plate, and the through port is located between the first through chamber and the second through chamber. The power supply plug board is provided with two water-passing connectors which are respectively connected to the first one-way valve and the second one-way valve. The end of the cable body is located in the storage cavity, and the wires and control core wires of the cable body are electrically connected to the power supply plug board after passing through the through port.

2. The liquid-cooled cable for new energy vehicles according to claim 1, characterized in that: The outer circumference of both ends of the cable body is provided with a connecting ring, the inner circumference of the cavity opening of the chamber is provided with an annular connecting portion, and the annular connecting portion is detachably matched with the connecting ring; the inner circumference of the cavity opening of the storage cavity is provided with an annular mounting portion, and the annular mounting portion is detachably matched with the connecting ring.

3. The liquid-cooled cable for new energy vehicles according to claim 1, characterized in that: A flexible sealing member is provided between the conductive wires and control core wires of the cable body and the passage, and a flexible sealing member is provided between the conductive wires and control core wires of the cable body and the through opening.

4. The liquid-cooled cable for new energy vehicles according to claim 1, characterized in that: In the cable body, there are at least two liquid cooling tubes, the liquid cooling tubes are independent of the conductive wires and the control core wire, and the conductive wires and the control core wire are close to the liquid cooling tubes.

5. The liquid-cooled cable for new energy vehicles according to claim 1, characterized in that: In the cable body, the liquid cooling tube is an annular liquid cooling tube, the wire is arranged in the annular liquid cooling tube, and the part of the annular liquid cooling tube located in the chamber or the storage cavity is provided with an opening, and the wire can pass through the opening and enter the channel or the through-portion.

6. The liquid-cooled cable for new energy vehicles according to claim 1, characterized in that: The liquid cooling tube is arranged inside the wire, and the end of the liquid cooling tube located in the chamber or the receiving cavity extends out of the wire.

7. A charging pile, characterized in that: include: A liquid-cooled cable for new energy vehicles as claimed in any one of claims 1 to 6; A charging pile body, wherein the charging pile body is provided with a connecting plug plate, the connecting plug plate is provided with two start-type water delivery interfaces, the power supply plug plate is connected to the connecting plug plate, and the two water-passing connectors of the power supply plug plate are respectively connected to the two start-type water delivery interfaces; A power supply unit, which is disposed in the charging pile body, is electrically connected to the connection plug board, and supplies power to the outside through the liquid cooling cable; A refrigeration unit is arranged in the charging pile body, and the liquid cooling pipe of the cable body enters the refrigeration unit through the two water-through joints. The refrigeration unit is used to cool and circulate the refrigerant in the liquid cooling pipe.

8. The charging pile according to claim 7, characterized in that: The refrigeration unit includes a condensing tank, a water pump and a return pipe. The return pipe is arranged in the condensing tank. One end of the return pipe is connected to one of the start-up water supply interfaces through the water pump, and the other end of the return pipe is connected to another start-up water supply interface through a pipeline.

9. The charging pile according to claim 7, characterized in that: The start-up water delivery interface includes a hole-shaped seat, a fixing plate, an elastic member and a sealed ball. The hole-shaped seat is arranged on the charging pile body. The hole-shaped seat has a through hole. The fixing plate is arranged on the hole-shaped seat. The fixing plate is opposite to the through hole. One end of the elastic member is connected to the fixing plate. The sealed ball is connected to the other end of the elastic member. The sealed ball is abutted against the orifice of the through hole through the elastic action of the elastic member. A water outlet is provided on the outer peripheral surface of the water connection joint. When the water connection joint is plugged into the through hole, the water connection joint squeezes the sealing ball, and the inside of the through hole is connected to the liquid cooling pipe through the water outlet.

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