Charging gun and charging equipment

Abstract

The embodiment of the utility model provides a charging gun and charging equipment, and relates to the technical field of charging equipment. The charging gun comprises a first power terminal, a second power terminal, a first cover plate, a second cover plate, a first liquid cooling pipe and a second liquid cooling pipe. The first power terminal comprises a first face and a first end, the first face is provided with a first groove, and the two ends of the first groove penetrate through the end face of the first end. The first cover plate is arranged opposite to the first surface, a first pipeline channel is defined by the first cover plate and the first groove, and the first liquid cooling pipe is arranged in the first pipeline channel in a penetrating mode. The second power terminal comprises a second face and a second end, the second face is provided with a second groove, and the two ends of the second groove penetrate through the end face of the second end. The second cover plate is arranged opposite to the second surface, a second pipeline channel is defined by the second cover plate and the second groove, and the second liquid cooling pipe is arranged in the second pipeline channel in a penetrating mode. The first end and the second end are located on the side away from the output end of the charging gun. In this way, liquid cooling heat dissipation of the power terminal can be realized conveniently.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of charging equipment, and in particular to a charging gun and a charging device. Background Art

[0002] A charging gun is a connection device that transmits electrical energy from a charging station to an electric vehicle. Once connected, the charging station can charge the electric vehicle through the gun. With the rapid development of the electric vehicle industry, the battery capacity of electric vehicles is increasing. Increasing charging power to shorten charging time is one way to achieve fast charging. However, increasing charging power increases the heat consumption of the charging gun. Excessive temperature of the charging gun can affect its reliability and other performance. Therefore, the heat dissipation efficiency of the charging gun restricts the increase in charging power.

[0003] Liquid cooling of charging guns is one approach to improving their heat dissipation efficiency. Charging guns often include power terminals, which generate significant heat during use. Therefore, liquid cooling of these terminals has become a pressing issue in the field of charging equipment technology. Utility Model Content

[0004] The embodiments of the present application provide a charging gun and a charging device, which facilitate liquid cooling of power terminals.

[0005] A first aspect of an embodiment of the present application provides a charging gun, which includes a first power terminal, a second power terminal, a first cover plate, a second cover plate, a first liquid cooling tube and a second liquid cooling tube, wherein the first liquid cooling tube and the second liquid cooling tube are both heat pipes.

[0006] The first power terminal includes a first surface and a first end, the first surface having a first groove, and the two ends of the first groove pass through the end surface of the first end. The first cover plate is arranged opposite to the first surface, and the first cover plate and the first groove are arranged to form a first pipeline channel, and the first liquid cooling tube is passed through the first pipeline channel. In this way, the first liquid cooling tube passed through the first pipeline channel can achieve liquid cooling and heat dissipation of the first power terminal. In addition, the heat conduction path between the liquid cooling medium in the first liquid cooling tube and the first power terminal is short, and the heat dissipation efficiency of the first power terminal is high. In addition, since the two ends of the first groove pass through the end surface of the first end, the inlet and outlet ends of the first liquid cooling tube passed through the first groove are located at the same end of the first power terminal, and the length of the portion of the first liquid cooling tube between the first power terminal and the first cover plate is longer, which has a better heat dissipation effect on the first power terminal.

[0007] The second power terminal includes a second surface and a second end, the second surface having a second groove, and the two ends of the second groove pass through the end surface of the second end. The second cover plate is arranged opposite to the second surface, and the second cover plate and the second groove are arranged to form a second pipeline channel, and the second liquid cooling tube is passed through the second pipeline channel. In this way, the second liquid cooling tube passed through the second pipeline channel can realize liquid cooling and heat dissipation of the second power terminal. In addition, the heat conduction path between the liquid cooling medium in the second liquid cooling tube and the second power terminal is short, and the heat dissipation efficiency of the second power terminal is high. In addition, since the two ends of the second groove pass through the end surface of the second end, the inlet and outlet ends of the second liquid cooling tube passed through the second groove are located at the same end of the second power terminal, and the length of the portion of the second liquid cooling tube between the second power terminal and the second cover plate is longer, which has a better heat dissipation effect on the second power terminal.

[0008] The first end is located on the side of the first power terminal away from the output end of the charging gun, facilitating connection of the first liquid cooling tube to the cable. The second end is located on the side of the second power terminal away from the output end of the charging gun, facilitating connection of the second liquid cooling tube to the cable. Both the first and second ends are located away from the output end of the charging gun, making it easier to connect the cable to both the first and second liquid cooling tubes.

[0009] The solution provided by the embodiments of the present application eliminates the need for the gun head to include components such as a liquid cooling plate and insulating heat conductors, simplifying the gun head structure and reducing its weight and assembly difficulty. Furthermore, the first and second liquid cooling tubes provide liquid cooling to the first and second power terminals, respectively. This reduces the likelihood of temperature cascades occurring during the liquid cooling of the first and second power terminals, minimizing the mutual impact of heat dissipation on the first and second power terminals, and ensuring more balanced heat dissipation between the first and second power terminals.

[0010] In some possible embodiments, the first cover plate includes a third surface and a third end. The third end is located on a side of the first cover plate away from the output terminal of the charging gun. The third surface is disposed opposite the first surface and includes a third groove opposite the first groove. The ends of the third groove extend through the end surface of the third end. The first groove and the second groove enclose a first pipe channel. This allows for a larger space within the formed first pipe channel, facilitating the placement of a first liquid cooling tube with a larger diameter, thereby improving heat dissipation for the first power terminal. Furthermore, the heat exchange surface between the first liquid cooling tube and the first cover plate is larger, facilitating efficient heat exchange between the first cover plate and the first liquid cooling tube. The first power terminal can efficiently exchange heat with the first liquid cooling tube through the first cover plate. Furthermore, facilitating the placement of the first liquid cooling tube, which partially protrudes from the first surface, within the first groove allows the first cover plate to stably and tightly press-fit the first liquid cooling tube, which partially protrudes from the first surface, onto the first power terminal, thereby reducing restrictions on the shape of the first liquid cooling tube.

[0011] In some possible embodiments, the second cover plate includes a fourth surface and a fourth end. The fourth end is located on a side of the second cover plate away from the output terminal of the charging gun. The fourth surface is disposed opposite the second surface and includes a fourth groove opposite the second groove. The ends of the fourth groove extend through the end surface of the fourth end. The second groove and the fourth groove enclose a second pipe channel. This allows for a larger space within the formed second pipe channel, facilitating the placement of a second liquid cooling tube with a larger diameter, thereby improving heat dissipation for the second power terminal. Furthermore, the heat exchange surface between the second liquid cooling tube and the second cover plate is larger, facilitating efficient heat exchange between the second cover plate and the second liquid cooling tube. The second power terminal can efficiently exchange heat with the second liquid cooling tube through the second cover plate. Furthermore, facilitating the placement of the second liquid cooling tube, which partially protrudes from the second surface, within the second groove allows the second cover plate to stably and tightly press-fit the portion of the second liquid cooling tube protruding from the second surface onto the second power terminal, thereby reducing restrictions on the second liquid cooling tube's shape.

[0012] In some possible implementations, the first power terminal and the second power terminal are arranged side by side along the first direction. In this way, the first power terminal and the second power terminal are arranged more easily on the gun head holder. In addition, the first power terminal and the second power terminal can be easily plugged in and out of the gun head holder, so as to facilitate electrical connection and disconnection with the electric vehicle.

[0013] In some possible implementations, the first cover plate is located on one side of the first power terminal in the second direction. Thus, the first cover plate's contact direction is different from the arrangement direction of the first and second power terminals, and the second power terminals have less impact on the fixation of the first cover plate and the first power terminal, thereby facilitating the fixation of the first cover plate and the first power terminal.

[0014] In some possible embodiments, the size of the first power terminal in the first direction is larger than the size of the first power terminal in the second direction, so as to reserve assembly space in the second direction for other components that fix the first cover plate to the first power terminal, making it easier to fix the first cover plate to the first power terminal.

[0015] In some possible implementations, the second cover plate is located on one side of the second power terminal in the second direction. Thus, the second cover plate's contact direction is different from the arrangement direction of the first and second power terminals, and the first power terminals have less influence on the fixation of the second cover plate and the second power terminal, thereby facilitating the fixation of the second cover plate and the second power terminal.

[0016] In some possible embodiments, the size of the second power terminal in the first direction is larger than the size of the second power terminal in the second direction, so as to reserve assembly space in the second direction for other components that fix the second cover plate to the second power terminal, making it easier to fix the second cover plate to the second power terminal.

[0017] In some possible embodiments, the charging gun further includes a wire rack having a first power terminal slot and a second power terminal slot. The first power terminal is inserted into the first power terminal slot, and one of the first power terminal and the first cover plate crimps the other of the first power terminal and the first cover plate onto the wire rack. The second power terminal is inserted into the second power terminal slot, and one of the second power terminal and the second cover plate crimps the other of the second power terminal and the second cover plate onto the wire rack. In this way, the first power terminal, the first cover plate, the first liquid cooling tube, the second power terminal, the second cover plate, and the second liquid cooling tube can be assembled using the wire rack, making assembly of the first power terminal, the first cover plate, the first liquid cooling tube, the second power terminal, the second cover plate, and the second liquid cooling tube more convenient and facilitating securing the first power terminal, the first cover plate, the first liquid cooling tube, the second power terminal, the second cover plate, and the second liquid cooling tube to the gun head holder. Furthermore, since no plastic parts are required within the gun head holder to encase the first power terminal, the first cover plate, the first liquid cooling tube, the second power terminal, the second cover plate, and the second liquid cooling tube, the wire rack is lightweight, which also helps reduce the weight of the gun head.

[0018] In some possible implementations, the first cover plate is located to one side of the first power terminal in the first direction. This facilitates the placement of the first power terminal, which has a wider first surface. The wider first surface provides more space for the first liquid cooling tube to bend, making it easier to bend the first liquid cooling tube between the first power terminal and the first cover plate, thereby increasing flexibility in the placement of the first liquid cooling tube. Furthermore, the larger bending space facilitates the placement of a first liquid cooling tube with a larger diameter, thereby improving heat dissipation performance for the first power terminal.

[0019] In some possible implementations, the size of the first power terminal in the first direction is smaller than that of the first power terminal in the second direction, so that the first power terminal occupies less space in the first direction based on the larger width of the first surface.

[0020] In some possible implementations, the second cover plate is located to one side of the second power terminal in the first direction. This facilitates the placement of the second power terminal, which has a wider second surface. The wider second surface provides more space for the second liquid cooling tube to bend, making it easier to bend the second liquid cooling tube between the second power terminal and the second cover plate, thereby increasing flexibility in the placement of the second liquid cooling tube. Furthermore, the larger bending space facilitates the placement of a second liquid cooling tube with a larger diameter, thereby improving heat dissipation performance for the second power terminal.

[0021] In some possible implementations, the size of the second power terminal in the first direction is smaller than that of the second power terminal in the second direction, so that the second power terminal occupies less space in the first direction based on the larger width of the second surface.

[0022] In some possible embodiments, the charging gun also includes a gun head seat and a pressing piece. The first power terminal is fixedly connected to the first cover plate, the second power terminal is fixedly connected to the second cover plate, and the pressing piece is fixedly connected to the gun head seat, and the pressing piece presses the first power terminal and the second power terminal to be fixed on the gun head seat. In this way, the first power terminal and the second power terminal can be fixed to the gun head seat by the pressing piece, and the assembly of the gun head is more convenient. In addition, there is no need to set plastic parts in the gun head seat to wrap the first power terminal, the first cover plate, the first liquid cooling tube, the second power terminal, the second cover plate and the second liquid cooling tube. The weight of the wire rack is lighter, which is also conducive to reducing the weight of the gun head.

[0023] In some possible implementations, the pressing member is crimped at the first end and the second end. This facilitates the pressing member to press and fix the first power terminal and the second power terminal on the gun head seat along the length direction of the first power terminal and the second power terminal, making the assembly of the pressing member and the gun head seat more convenient.

[0024] In some possible embodiments, the first end has a first limiting groove, the second end has a second limiting groove, and the pressing member has a first limiting portion and a second limiting portion, the first limiting portion being locked in the first limiting groove, and the second limiting portion being locked in the second limiting groove. In this way, the first power terminal and the second power terminal can be fixed more firmly.

[0025] In some possible embodiments, the charging gun further includes a first liquid inlet pipe and a second liquid inlet pipe, the inlet end of the first liquid cooling pipe is connected to the first liquid inlet pipe via a first liquid inlet joint, and the inlet end of the second liquid cooling pipe is connected to the second liquid inlet pipe via a second liquid inlet joint. In this way, compared with the solution in which the inlet end of the first liquid cooling pipe and the inlet end of the second liquid cooling pipe are connected to the outlet end of the liquid supply assembly via the same liquid inlet pipe, on the basis of providing the same cooling capacity, the diameters of the first liquid inlet pipe and the second liquid inlet pipe are smaller, which is conducive to reducing the overall wire diameter of the cable connecting the gun head and the charging pile. In addition, the connection through the first liquid inlet joint and the second liquid inlet joint makes it more convenient to connect the first liquid cooling pipe to the first liquid inlet pipe, and the connection between the second liquid cooling pipe and the second liquid inlet pipe, which facilitates the maintenance and replacement of the first liquid cooling pipe, the second liquid cooling pipe and the cable.

[0026] In some possible embodiments, the charging gun further includes a first liquid return pipe and a second liquid return pipe, the outlet end of the first liquid cooling pipe is connected to the first liquid return pipe via a first liquid outlet joint, and the outlet end of the second liquid cooling pipe is connected to the second liquid return pipe via a second liquid outlet joint. In this way, compared to the solution in which the outlet ends of the first liquid cooling pipe and the second liquid cooling pipe are connected to the outlet end of the liquid supply assembly via the same liquid return pipe, on the basis of providing the same cooling capacity, the diameters of the first liquid return pipe and the second liquid return pipe are smaller, which is conducive to reducing the overall wire diameter of the cable connecting the gun head and the charging pile. In addition, by connecting through the first liquid outlet joint and the second liquid outlet joint, the connection between the first liquid cooling pipe and the first liquid return pipe, as well as the connection between the second liquid cooling pipe and the second liquid return pipe are more convenient, which facilitates the maintenance and replacement of the first liquid cooling pipe, the second liquid cooling pipe and the cable.

[0027] In some possible embodiments, the inlet end of the first liquid cooling tube and the outlet end of the first liquid cooling tube are both located outside the first pipeline channel. In this way, it is convenient to set the first liquid inlet joint and the first liquid outlet joint outside the second pipeline channel, so that the first liquid inlet joint and the first liquid outlet joint are not likely to affect the first cover plate and the first power terminal crimping the first liquid cooling tube, which is conducive to the stable and tight crimping of the first cover plate and the first power terminal to the first liquid cooling tube, so that the heat dissipation of the first liquid cooling tube to the first power terminal is more stable and efficient. Furthermore, the portion of the first liquid cooling tube outside the first pipeline channel is relatively small, the first liquid cooling tube is not easily damaged by scratches, and the reliability of the first liquid cooling tube is higher.

[0028] In some possible embodiments, the inlet end and the outlet end of the second liquid cooling tube are both located outside the second pipeline channel. In this way, it is convenient to set the second liquid inlet joint and the second liquid outlet joint outside the second pipeline channel, so that the second liquid inlet joint and the second liquid outlet joint are not likely to affect the second cover plate and the second power terminal crimping the second liquid cooling tube, which is conducive to the stable and tight crimping of the second cover plate and the second power terminal to the second liquid cooling tube, so that the heat dissipation of the second liquid cooling tube to the second power terminal is more stable and efficient. Furthermore, the portion of the second liquid cooling tube outside the second pipeline channel is relatively small, and the second liquid cooling tube is not easily damaged by scratches, and the reliability of the second liquid cooling tube is higher.

[0029] In some possible implementations, the first liquid inlet connector is a one-inlet and one-outlet connector. Thus, the first liquid inlet connector has fewer ports, which can make the first liquid inlet connector smaller, thereby facilitating reduction in the size of the gun tip.

[0030] In some possible implementations, the first liquid outlet connector is a one-inlet and one-outlet connector. Thus, the first liquid outlet connector has fewer ports, which can make the first liquid outlet connector smaller, thereby facilitating reduction in the size of the gun tip.

[0031] In some possible implementations, the second liquid inlet connector is a one-inlet-one-outlet connector. Thus, the second liquid inlet connector has fewer ports, which can make the second liquid inlet connector smaller, thereby facilitating reduction in the size of the gun tip.

[0032] In some possible implementations, the second liquid outlet connector is a one-inlet-one-outlet connector. Thus, the second liquid outlet connector has fewer ports, which can make the second liquid outlet connector smaller, thereby facilitating reduction in the size of the gun tip.

[0033] In some possible embodiments, the first groove includes a first bend section, a first straight groove section, and a second straight groove section. Both the first straight groove section and the second straight groove section extend along the length of the first power terminal. One end of the first straight groove section extends through the end surface of the first terminal, and the other end of the first straight groove section communicates with one end of the first bend section. The other end of the first bend section communicates with one end of the second straight groove section, and the other end of the second straight groove section extends through the end surface of the first terminal. This reduces the number of bends in the first liquid cooling tube and makes it less susceptible to damage, making it easier to position the first liquid cooling tube within the first groove. Furthermore, the bending radius of the first bend section can be increased, allowing the first liquid cooling tube disposed within the first groove to have a larger bending radius, thereby facilitating the placement of a first liquid cooling tube with a larger diameter and thereby improving heat dissipation for the first power terminal. Furthermore, the substantially parallel first and second straight groove sections prevent the portion of the first liquid cooling tube extending from the first straight groove section and the portion of the first liquid cooling tube extending from the second straight groove section from interfering with each other, making it easier to connect the first liquid cooling tube to the first inlet pipe and the first return pipe. The turning area of the first liquid cooling tube is located in the first pipeline channel. The channel wall of the first pipeline channel can provide strength for the turning area of the first liquid cooling tube, so that the turning area of the first liquid cooling tube is not easily damaged.

[0034] In some possible embodiments, the second groove includes a second curved section, a third straight section, and a fourth straight section. Both the third and fourth straight sections extend along the length of the second power terminal. One end of the third straight section extends through the end surface of the second terminal, and the other end of the third straight section communicates with one end of the second curved section. The other end of the second curved section communicates with one end of the fourth straight section, and the other end of the fourth straight section extends through the end surface of the second terminal. This reduces the number of bends in the second liquid cooling tube, making it less susceptible to damage and facilitating placement of the second liquid cooling tube within the second groove. Furthermore, the bending radius of the second curved section can be increased, allowing for a larger bending radius for the second liquid cooling tube within the second groove, thereby facilitating placement of a larger diameter second liquid cooling tube and improving heat dissipation for the second power terminal. Furthermore, the roughly parallel third and fourth straight sections prevent interference between the portion of the second liquid cooling tube extending from the third straight section and the portion of the second liquid cooling tube extending from the fourth straight section, facilitating easier connection of the second liquid cooling tube to the second inlet and return pipes. The turning area of the second liquid cooling tube is located in the second pipe channel. The channel wall of the second pipe channel can provide strength for the turning area of the second liquid cooling tube, so that the turning area of the second liquid cooling tube is not easily damaged.

[0035] A second aspect of an embodiment of the present application provides a charging device, comprising a charging pile and a charging gun according to any of the above embodiments. The charging pile comprises a power supply assembly and a liquid supply assembly. The first power terminal and the second power terminal of the charging gun are both electrically connected to the power supply assembly, the inlet end of the first liquid cooling tube of the charging gun and the inlet end of the second liquid cooling tube of the charging gun are both connected to the outlet end of the liquid supply assembly, and the outlet end of the first liquid cooling tube and the outlet end of the second liquid cooling tube are both connected to the inlet end of the liquid supply assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of a charging device provided in an embodiment of the present application;

[0037] Figure 2 A schematic diagram of a gun tip provided in an embodiment of the present application;

[0038] Figure 3 for Figure 2 An exploded view of the gun head provided in;

[0039] Figure 4 A schematic cross-sectional view of a cable provided in an embodiment of the present application;

[0040] Figure 5 for Figure 2 A schematic diagram of a first power terminal and a second power terminal of a gun head provided in one perspective;

[0041] Figure 6 for Figure 2Another exploded view of the gun head provided in;

[0042] Figure 7 for Figure 2 Another exploded image of the gun head provided in;

[0043] Figure 8 for Figure 2 A schematic diagram of another perspective of the first power terminal and the second power terminal of the gun tip provided in;

[0044] Figure 9 for Figure 2 A schematic diagram of the first cover plate and the second cover plate of the gun head provided in;

[0045] Figure 10 A schematic diagram of a wire rack provided in an embodiment of the present application;

[0046] Figure 11 for Figure 2 Another exploded image of the gun head provided in;

[0047] Figure 12 A schematic diagram of an insulating pressure plate provided in an embodiment of the present application;

[0048] Figure 13 for Figure 2 A thermal simulation diagram of the gun tip provided in;

[0049] Figure 14 A schematic diagram of another gun tip provided in an embodiment of the present application;

[0050] Figure 15 A schematic diagram of another gun tip provided in an embodiment of the present application;

[0051] Figure 16 for Figure 15 Exploded view of the gun head provided in;

[0052] Figure 17 A schematic diagram of a compression member provided in an embodiment of the present application;

[0053] Figure 18 for Figure 15 A schematic diagram of the first power terminal, the second power terminal, the first cover plate and the second cover plate of the gun head provided in.

[0054] Description of reference numerals:

[0055] 1. Charging gun; 2. Charging pile;

[0056] 10. Gun head; 20. Cable; 21a. First liquid inlet pipe; 21b. Second liquid inlet pipe; 22a. First liquid return pipe; 22b. Second liquid return pipe; 23a. First power line; 23b. Second power line; 30. Power supply assembly; 40. Liquid supply assembly;

[0057] 100, gun head seat; 110, mating part;

[0058] 200, wire rack; 210, first frame; 211a, first power terminal slot; 211b, second power terminal slot; 212a, first card slot; 212b, second card slot; 220, second frame;

[0059] 300a, first power terminal; 310a, first section; 320a, second section; 330a, first partition section; 340a, first surface; 350a, first end; 351a, first limiting groove; 360a, first groove; 361a, first straight groove section; 362a, first bent section; 363a, second straight groove section;

[0060] 300b, second power terminal; 310b, third section; 320b, fourth section; 330b, second partition section; 340b, second surface; 350b, second end; 351b, second limiting groove; 360b, second groove; 361b, third straight groove section; 362b, second bent section; 363b, fourth straight groove section;

[0061] 400a, first cover plate; 410a, third surface; 420a, third end; 421a, third limiting groove; 430a, third groove;

[0062] 400b, second cover plate; 410b, fourth surface; 420b, fourth end; 421b, fourth limiting groove; 430b, fourth groove;

[0063] 500a, first liquid cooling pipe; 510a, first liquid inlet connector; 520a, first liquid outlet connector;

[0064] 500b, second liquid cooling pipe; 510b, second liquid inlet connector; 520b, second liquid outlet connector;

[0065] 600, insulating pressing plate; 610, fifth limiting groove; 620, sixth limiting groove;

[0066] 700, pressing member; 710, first connecting portion; 720, second connecting portion; 730, third connecting portion; 740, first crimping portion; 741, first limiting portion; 750, second crimping portion; 751, second limiting portion;

[0067] x, first direction; y, second direction; z, third direction. DETAILED DESCRIPTION

[0068] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0069] Figure 1 A schematic diagram of a charging device provided in an embodiment of the present application.

[0070] like Figure 1 As shown, an embodiment of the present application provides a charging device that can be used to charge electric vehicles. The charging device includes a charging pile 2 and a charging gun 1. The charging pile 2 is connected to the charging gun 1. The charging pile 2 can provide electrical energy. The charging gun 1 is a connection device that transmits electrical energy from the charging pile 2 to the electric vehicle. After the charging gun 1 is connected to the electric vehicle, the charging pile 2 can charge the electric vehicle through the charging gun 1. In some examples, the charging device can be a supercharging device, and the charging power of a single charging gun 1 is generally greater than or equal to 480KW.

[0071] The charging gun 1 has an output end, which is used to connect to the electric vehicle. After the output end is connected to the electric vehicle, the charging pile 2 can charge the electric vehicle through the charging gun 1. The output end is located at the end of the charging gun 1 away from the charging pile 2.

[0072] The charging gun 1 includes a gun head 10 and a cable 20 . The two ends of the cable 20 are respectively connected to the gun head 10 and the charging pile 2 . The output end of the charging gun 1 is located at the end of the gun head 10 away from the cable 20 .

[0073] The charging pile 2 includes a power supply component 30, which can be connected to the mains electricity through a charging host. The charging host can convert the current provided by the mains electricity into the current required for charging the electric vehicle.

[0074] Figure 2 A schematic diagram of a gun tip provided in an embodiment of the present application, Figure 3 for Figure 2 Exploded view of the gun head provided in.

[0075] Among them, the x direction is the first direction, the y direction is the second direction, and the z direction is the third direction. The first direction, the second direction, and the third direction are three different directions. The first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction.

[0076] It can be understood that in some implementations, the first direction and the second direction can be set at an angle, the first direction and the third direction can be set at an angle, and the second direction and the third direction can be set at an angle, that is, the first direction and the second direction may not be perpendicular, the first direction and the third direction may not be perpendicular, and the second direction and the third direction may not be perpendicular.

[0077] In the embodiment of the present application, the gun tip 10 includes a gun tip base 100, a first power terminal 300a, and a second power terminal 300b. The first power terminal 300a and the second power terminal 300b are disposed within the gun tip base 100 and are fixed to the gun tip base 100. The first power terminal 300a and the second power terminal 300b are both electrically connected to the power supply assembly 30. The gun tip base 100 is made of an insulating material and is used to connect to an electric vehicle so that the first power terminal 300a and the second power terminal 300b are in electrical contact with the electric vehicle.

[0078] For example, the first power terminal 300a and the second power terminal 300b may be arranged substantially in parallel. For example, the first power terminal 300a and the second power terminal 300b both extend along a third direction, that is, the third direction may be the length direction of the first power terminal 300a and the second power terminal 300b.

[0079] Figure 4 A schematic cross-sectional view of a cable provided in an embodiment of the present application.

[0080] like Figure 4 As shown, the cable 20 includes a first power line 23a and a second power line 23b. One end of the first power line 23a is fixed to and electrically connected to the first power terminal 300a, and the other end of the first power line 23a is fixed to and electrically connected to the power supply assembly 30, so that the first power terminal 300a is electrically connected to the power supply assembly 30 through the first power line 23a. One end of the second power line 23b is fixed to and electrically connected to the second power terminal 300b, and the other end of the second power line 23b is fixed to and electrically connected to the power supply assembly 30, so that the second power terminal 300b is electrically connected to the power supply assembly 30 through the second power line 23b. The first power line 23a refers to the power line electrically connected to the first power terminal 300a, and the second power line 23b refers to the power line electrically connected to the second power terminal 300b.

[0081] For example, the first power terminal 300 a may be electrically connected to the power supply assembly 30 via one or more first power lines 23 a , and the second power terminal 300 b may be electrically connected to the power supply assembly 30 via one or more second power lines 23 b .

[0082] It should be noted that, in this application, "multiple" means greater than or equal to "2". For example, "multiple" means greater than or equal to "2", and "multiple" means greater than or equal to "2".

[0083] In some examples, the first power terminal 300a can be a positive terminal, and the first power terminal 300a is electrically connected to the positive pole of the power supply component 30 through the first power line 23a, and the second power terminal 300b can be a negative terminal, and the second power terminal 300b is electrically connected to the negative pole of the power supply component 30 through the second power line 23b.

[0084] In some examples where the gun tip 10 further includes other power terminals in addition to the first power terminal 300a and the second power terminal 300b, the first power terminal 300a and the second power terminal 300b may both be positive terminals, or the first power terminal 300a and the second power terminal 300b may both be negative terminals.

[0085] Figure 5 for Figure 2 A schematic diagram of one perspective of the first power terminal and the second power terminal of the gun tip is provided.

[0086] like Figure 5 As shown, in the embodiment of the present application, the first power terminal 300a includes a first surface 340a and a first end 350a. The first surface 340a has a first groove 360a. Both ends of the first groove 360a extend through the end surface of the first end 350a. In other words, both ends of the first groove 360a are open structures located on the end surface of the first end 350a.

[0087] Exemplarily, the first end 350 a is located at one end of the first power terminal 300 a in the length direction, and the first surface 340 a is located at one side of the first power terminal 300 a in the thickness direction.

[0088] Exemplarily, the first power terminal 300a includes a first section 310a, a first partition section 330a, and a second section 320a. The second section 320a and the first section 310a are located on either side of the first partition section 330a in the third direction. The second section 320a is connected to the first section 310a via the first partition section 330a. The second section 320a is configured to connect to an electric vehicle. A first surface 340a is located on one side of the first section 310a in the thickness direction and is connected to the first partition section 330a. A first end 350a is located at an end of the first section 310a away from the second section 320a. A first groove 360a is located in the first section 310a. The first power line 23a is fixed to and electrically connected to the first section 310a.

[0089] The second power terminal 300b includes a second surface 340b and a second end 350b. The second surface 340b has a second groove 360b. Both ends of the second groove 360b pass through the end surface of the second end 350b. In other words, both ends of the second groove 360b are opening structures located on the end surface of the second end 350b.

[0090] Exemplarily, the second end 350 b is located at one end in the length direction of the second power terminal 300 b , and the second surface 340 b is located at one side in the thickness direction of the second power terminal 300 b .

[0091] Exemplarily, the second power terminal 300b includes a third section 310b, a second partition section 330b, and a fourth section 320b. The fourth section 320b and the third section 310b are located on either side of the second partition section 330b in the third direction. The fourth section 320b is connected to the third section 310b via the second partition section 330b. The fourth section 320b is configured to connect to an electric vehicle. The second surface 340b is located on one side of the third section 310b in the thickness direction and is connected to the second partition section 330b. The second end 350b is located at an end of the third section 310b away from the fourth section 320b. The second groove 360b is located in the third section 310b. The second power line 23b is fixed to and electrically connected to the third section 310b.

[0092] Figure 6 for Figure 2 Another exploded view of the gun head is provided in .

[0093] like Figure 6 As shown, the gun tip 10 also includes a first liquid cooling tube 500a, which is a heat conducting tube. That is, the first liquid cooling tube 500a is made of a heat-conducting material and has good thermal conductivity. For example, the thermal conductivity of the first liquid cooling tube 500a can be greater than or equal to approximately 0.05 W / mk and less than or equal to approximately 5 W / mk. For example, the thermal conductivity of the first liquid cooling tube 500a can be greater than or equal to approximately 0.15 W / mk and less than or equal to approximately 3 W / mk.

[0094] The gun tip 10 also includes a first cover plate 400a, which is disposed opposite the first surface 340a. The first cover plate 400a and the first groove 360a enclose a first pipe channel, and a first liquid cooling tube 500a is disposed within the first pipe channel. The inlet end of the first liquid cooling tube 500a is connected to the outlet end of the liquid supply assembly 40, and the outlet end of the first liquid cooling tube 500a is also connected to the inlet end of the liquid supply assembly 40. The liquid supply assembly 40 can supply liquid cooling medium to the first liquid cooling tube 500a, and the liquid cooling medium flowing out of the first liquid cooling tube 500a can flow back to the liquid supply assembly 40.

[0095] In this way, the first liquid cooling tube 500a, which is arranged within the first pipeline channel, can achieve liquid cooling and heat dissipation for the first power terminal 300a. Furthermore, the heat conduction path between the liquid cooling medium in the first liquid cooling tube 500a and the first power terminal 300a is relatively short, resulting in a high heat dissipation efficiency for the first power terminal 300a. Furthermore, the inlet and outlet ends of the first liquid cooling tube 500a are located at the same end of the first power terminal 300a, and the length of the first liquid cooling tube 500a between the first power terminal 300a and the first cover plate 400a is relatively long, thus achieving a good heat dissipation effect for the first power terminal 300a. Furthermore, the first liquid cooling tube 500a is less exposed to damage from scratches, thus increasing its reliability. In addition, the turning area of the first liquid cooling tube 500a is located in the first pipeline channel, and the channel wall of the first pipeline channel can provide strength for the turning area of the first liquid cooling tube 500a, so the turning area of the first liquid cooling tube 500a is not easily damaged.

[0096] Exemplarily, the first cover plate 400a can press the first liquid cooling tube 500a onto the first power terminal 300a to facilitate close contact between the first liquid cooling tube 500a, the first cover plate 400a and the first power terminal 300a, thereby improving the heat dissipation efficiency of the first liquid cooling tube 500a to the first power terminal 300a.

[0097] Illustratively, the first cover plate 400a covers the first section 310a.

[0098] Exemplarily, the inlet end of the first liquid-cooling pipe 500a and the outlet end of the first liquid-cooling pipe 500a face the same direction.

[0099] The gun tip 10 also includes a second liquid cooling tube 500b. The second liquid cooling tube 500b is a heat conducting tube, that is, the second liquid cooling tube 500b is made of a heat-conducting material and has good thermal conductivity. Exemplarily, the thermal conductivity of the second liquid cooling tube 500b can be greater than or equal to approximately 0.05 W / mk and less than or equal to approximately 5 W / mk. For example, the thermal conductivity of the second liquid cooling tube 500b can be greater than or equal to approximately 0.15 W / mk and less than or equal to approximately 3 W / mk.

[0100] The gun head 10 also includes a second cover plate 400b, which is arranged opposite to the second surface 340b. The second cover plate 400b and the second groove 360b are arranged to form a second pipeline channel. The second liquid cooling tube 500b is arranged in the second pipeline channel. The inlet end of the second liquid cooling tube 500b is connected to the outlet end of the liquid supply component 40, and the outlet end of the second liquid cooling tube 500b is connected to the inlet end of the liquid supply component 40. The liquid supply component 40 can supply liquid cooling medium to the second liquid cooling tube 500b, and the liquid cooling medium flowing out of the second liquid cooling tube 500b can flow back to the liquid supply component 40.

[0101] In this way, the second liquid cooling tube 500b, which is arranged within the second pipeline channel, can achieve liquid cooling and heat dissipation for the second power terminal 300b. Furthermore, the heat conduction path between the liquid cooling medium in the second liquid cooling tube 500b and the second power terminal 300b is relatively short, resulting in a high heat dissipation efficiency for the second power terminal 300b. Furthermore, the inlet and outlet ends of the second liquid cooling tube 500b are located at the same end of the second power terminal 300b, and the portion of the second liquid cooling tube 500b between the second power terminal 300b and the second cover plate 400b is relatively long, resulting in a better heat dissipation effect for the second power terminal 300b. Furthermore, the portion of the second liquid cooling tube 500b outside the second pipeline channel is relatively small, making it less susceptible to damage from scratches and providing a higher reliability. In addition, the turning area of the second liquid cooling tube 500b is located in the second pipeline channel, and the channel wall of the second pipeline channel can provide strength for the turning area of the second liquid cooling tube 500b, so that the turning area of the second liquid cooling tube 500b is not easily damaged.

[0102] Compared with the solution of liquid cooling the first power terminal 300a and the second power terminal 300b through a liquid cooling plate, in the embodiment of the present application, the gun head 10 may not include components such as a liquid cooling plate and an insulating heat conductor, which can make the structure of the gun head 10 simpler and help reduce the weight and assembly difficulty of the gun head 10.

[0103] The first liquid cooling tube 500a and the second liquid cooling tube 500b respectively perform liquid cooling on the first power terminal 300a and the second power terminal 300b. The liquid cooling of the first power terminal 300a and the second power terminal 300b is less likely to cause temperature cascade, and the mutual influence between the heat dissipation of the first power terminal 300a and the second power terminal 300b is small, so that the heat dissipation of the first power terminal 300a and the second power terminal 300b is more balanced.

[0104] Exemplarily, the second cover plate 400b presses the second liquid cooling tube 500b onto the second power terminal 300b, so that the second liquid cooling tube 500b is in close contact with the second cover plate 400b and the first power terminal 300b, thereby improving the heat dissipation efficiency of the second liquid cooling tube 500b to the second power terminal 300b.

[0105] The first end 350a is located on the side of the first power terminal 300a away from the output end of the charging gun 1. In other words, the first end 350a is located on the side of the gun head 10 for connecting to the cable 20, so as to facilitate the connection between the first liquid cooling tube 500a and the cable 20.

[0106] The second end 350b is located on the side of the second power terminal 300b away from the output end of the charging gun 1. In other words, the second end 350b is located on the side of the gun head 10 for connecting to the cable 20, so as to facilitate the connection between the second liquid cooling tube 500b and the cable 20.

[0107] The first end 350a and the second end 350b are both located on a side away from the output end of the charging gun 1. In other words, the first end 350a and the second end 350b are located on the same side of the gun head 10, making it easier to connect the cable 20 to the first liquid cooling tube 500a and the second liquid cooling tube 500b at the same time.

[0108] Illustratively, the second cover plate 400b covers the third section 310b.

[0109] Exemplarily, the inlet end of the second liquid-cooling pipe 500 b and the outlet end of the second liquid-cooling pipe 500 b face the same direction.

[0110] The cable 20 includes a liquid inlet pipe and a liquid return pipe. The inlet end of the first liquid cooling tube 500a and the inlet end of the second liquid cooling tube 500b are both connected to the outlet end of the liquid supply component 40 through the liquid inlet pipe, and the outlet end of the first liquid cooling tube 500a and the outlet end of the second liquid cooling tube 500b are both connected to the inlet end of the liquid supply component 40 through the liquid return pipe. The liquid supply component 40 supplies liquid-cooling medium to the first liquid cooling tube 500a and the second liquid cooling tube 500b through the liquid inlet pipe, and the liquid-cooling medium flowing out of the first liquid cooling tube 500a and the second liquid cooling tube 500b flows back to the liquid supply component 40 through the liquid return pipe.

[0111] In some examples, the inlet end of the first liquid cooling tube 500a and the inlet end of the second liquid cooling tube 500b are connected to the outlet end of the liquid supply component 40 through the same liquid inlet tube, and the outlet end of the first liquid cooling tube 500a and the outlet end of the second liquid cooling tube 500b are connected to the inlet end of the liquid supply component 40 through the same liquid return tube.

[0112] Continue to read Figure 4In other examples, the cable 20 includes multiple liquid inlet pipes, which include a first liquid inlet pipe 21a and a second liquid inlet pipe 21b. The inlet end of the first liquid cooling pipe 500a is connected to the outlet end of the liquid supply component 40 through the first liquid inlet pipe 21a, and the liquid supply component 40 supplies liquid-cooling medium to the first liquid cooling pipe 500a through the first liquid inlet pipe 21a. The inlet end of the second liquid cooling pipe 500b is connected to the outlet end of the liquid supply component 40 through the second liquid inlet pipe 21b, and the liquid supply component 40 supplies liquid-cooling medium to the second liquid cooling pipe 500b through the second liquid inlet pipe 21b.

[0113] In this way, compared with the scheme in which the inlet end of the first liquid cooling tube 500a and the inlet end of the second liquid cooling tube 500b are connected to the outlet end of the liquid supply component 40 through the same liquid inlet pipe, on the basis of the same cooling capacity provided, the diameters of the first liquid inlet pipe 21a and the second liquid inlet pipe 21b are smaller, and the inlet end of the first liquid cooling tube 500a and the inlet end of the second liquid cooling tube 500b are respectively connected to the outlet end of the liquid supply component 40 through the first liquid inlet pipe 21a and the second liquid inlet pipe 21b with smaller diameters, which is beneficial to reducing the overall wire diameter of the cable 20.

[0114] The cable 20 includes multiple return liquid pipes, including a first return liquid pipe 22a and a second return liquid pipe 22b. The outlet end of the first liquid cooling pipe 500a is connected to the inlet end of the liquid supply component 40 through the first return liquid pipe 22a, and the liquid-cooling medium flowing out of the first liquid cooling pipe 500a flows back to the liquid supply component 40 through the first return liquid pipe 22a. The outlet end of the second liquid cooling pipe 500b is connected to the inlet end of the liquid supply component 40 through the second return liquid pipe 22b, and the liquid-cooling medium flowing out of the second liquid cooling pipe 500b flows back to the liquid supply component 40 through the second return liquid pipe 22b.

[0115] In this way, compared with the solution in which the outlet end of the first liquid cooling tube 500a and the outlet end of the second liquid cooling tube 500b are connected to the inlet end of the liquid supply component 40 through the same return liquid pipe, on the basis of providing the same cooling capacity, the diameters of the first return liquid pipe 22a and the second return liquid pipe 22b are smaller, and the outlet end of the first liquid cooling tube 500a and the outlet end of the second liquid cooling tube 500b are respectively connected to the inlet end of the liquid supply component 40 through the first return liquid pipe 22a and the second return liquid pipe 22b with smaller diameters, which is beneficial to reducing the overall wire diameter of the cable 20.

[0116] Exemplarily, the cable 20 includes two first power lines 23a and two second power lines 23b, wherein one first power line 23a is covered on the surface of the first liquid inlet pipe 21a, and the other first power line 23a is covered on the surface of the first liquid return pipe 22a, wherein one second power line 23b is covered on the surface of the second liquid inlet pipe 21b, and the other second power line 23b is covered on the surface of the second liquid return pipe 22b.

[0117] Figure 7for Figure 2 Another exploded view of the gun head provided in .

[0118] like Figure 7 As shown, and see Figure 6 In some possible embodiments, the gun tip 10 further includes a first liquid inlet joint 510a and a first liquid outlet joint 520a, the inlet end of the first liquid cooling tube 500a and the outlet end of the first liquid cooling tube 500a are both located outside the first pipeline channel, the inlet end of the first liquid cooling tube 500a is connected to the first liquid inlet pipe 21a through the first liquid inlet joint 510a, and the outlet end of the first liquid cooling tube 500a is connected to the first liquid return pipe 22a through the first liquid outlet joint 520a.

[0119] In this way, the first liquid cooling tube 500a is conveniently connected to the first liquid inlet tube 21a and the first liquid return tube 22a, facilitating maintenance and replacement of the first liquid cooling tube 500a and the cable 20. Furthermore, the first liquid inlet connector 510a and the first liquid outlet connector 520a are conveniently disposed outside the first pipeline channel, making it less likely that the first liquid inlet connector 510a and the first liquid outlet connector 520a will affect the crimping of the first cover plate 400a and the first power terminal 300a onto the first liquid cooling tube 500a. This facilitates stable and tight crimping of the first cover plate 400a and the first power terminal 300a onto the first liquid cooling tube 500a, resulting in more stable and efficient heat dissipation from the first liquid cooling tube 500a to the first power terminal 300a.

[0120] The gun tip 10 also includes a second liquid inlet joint 510b and a second liquid outlet joint 520b. The inlet end and the outlet end of the second liquid cooling tube 500b are both located outside the second pipeline channel. The inlet end of the second liquid cooling tube 500b is connected to the second liquid inlet pipe 21b through the second liquid inlet joint 510b, and the outlet end of the second liquid cooling tube 500b is connected to the second liquid return pipe 22b through the second liquid outlet joint 520b.

[0121] In this way, the second liquid cooling tube 500b is conveniently connected to the second liquid inlet tube 21b and the second liquid return tube 22b, facilitating maintenance and replacement of the second liquid cooling tube 500b and the cable 20. Furthermore, the second liquid inlet connector 510b and the second liquid outlet connector 520b are conveniently disposed outside the second optical path, making it less likely that the second liquid inlet connector 510b and the second liquid outlet connector 520b will affect the crimping of the second cover plate 400b and the second power terminal 300b onto the second liquid cooling tube 500b. This facilitates stable and tight crimping of the second cover plate 400b and the second power terminal 300b onto the second liquid cooling tube 500b, resulting in more stable and efficient heat dissipation from the second liquid cooling tube 500b to the second power terminal 300b.

[0122] like Figure 7As shown, the first liquid inlet connector 510a is exemplarily a one-inlet, one-outlet connector. That is, the first liquid inlet connector 510a has two ports, one for liquid inlet and the other for liquid outlet. Thus, the first liquid inlet connector 510a has fewer ports, which allows for a smaller size of the first liquid inlet connector 510a, thereby reducing the size of the gun tip 10.

[0123] Exemplarily, the second liquid inlet connector 510b is a one-inlet, one-outlet connector. That is, the second liquid inlet connector 510b has two ports, one for liquid inlet and the other for liquid outlet. Thus, the second liquid inlet connector 510b has fewer ports, allowing for a smaller size, which helps reduce the size of the gun tip 10.

[0124] Exemplarily, the first liquid outlet connector 520a is a one-inlet, one-outlet connector. That is, the first liquid outlet connector 520a has two ports, one for liquid inlet and the other for liquid outlet. Thus, the first liquid outlet connector 520a has fewer ports, allowing for a smaller size, which facilitates reducing the size of the gun tip 10.

[0125] Exemplarily, the second liquid outlet connector 520b is a one-inlet, one-outlet connector. That is, the second liquid outlet connector 520b has two ports, one for liquid inlet and the other for liquid outlet. Thus, the second liquid outlet connector 520b has fewer ports, allowing for a smaller size, which facilitates reducing the size of the gun tip 10.

[0126] For example, the flow rate of the liquid-cooling medium in the first liquid-cooling tube 500a may be greater than 0 and less than or equal to about 100 m / s. For example, the flow rate of the liquid-cooling medium in the first liquid-cooling tube 500a may be greater than or equal to about 50 m / s and less than or equal to about 60 m / s.

[0127] For example, the pressure drop of the liquid coolant in the first liquid cooling tube 500a may be greater than 0 and less than or equal to about 10 kPa. For example, the pressure drop of the liquid coolant in the first liquid cooling tube 500a may be greater than or equal to about 5 kPa and less than or equal to about 6 kPa.

[0128] For example, the flow rate of the liquid-cooling medium in the second liquid-cooling pipe 500b can be greater than 0 and less than or equal to about 100 m / s. For example, the flow rate of the liquid-cooling medium in the second liquid-cooling pipe 500b can be greater than or equal to about 50 m / s and less than or equal to about 60 m / s.

[0129] For example, the pressure drop of the liquid coolant in the second liquid cooling tube 500b may be greater than 0 and less than or equal to about 10 kPa. For example, the pressure drop of the liquid coolant in the second liquid cooling tube 500b may be greater than or equal to about 5 kPa and less than or equal to about 6 kPa.

[0130] In some examples, the first liquid cooling tube 500a is an insulating tube, that is, the first liquid cooling tube 500a is made of an insulating and heat-conducting material. In addition to having good thermal conductivity, the first liquid cooling tube 500a also has good insulation performance.

[0131] This reduces the chance of electrical conduction between the first power terminal 300a and other power terminals (e.g., the second power terminal 300b) via the first liquid cooling tube 500a, thus maintaining insulation between the first power terminal 300a and the other power terminals. Furthermore, this reduces restrictions on the liquid cooling medium, allowing for conductive liquid cooling, thus reducing costs and increasing efficiency.

[0132] For example, the volume resistivity of the first liquid cooling tube 500a may be greater than or equal to about 10 8 Ω·cm. For example, the volume resistivity of the first liquid cooling tube 500a may be greater than or equal to about 10 10 Ω·cm.

[0133] In some examples, the second liquid cooling tube 500b is an insulating tube, that is, the second liquid cooling tube 500b is made of an insulating and heat-conducting material. In addition to having good thermal conductivity, the second liquid cooling tube 500b also has good insulation performance.

[0134] This reduces the chance of electrical conduction between the second power terminal 300b and other power terminals (e.g., the first power terminal 300a) via the second liquid cooling tube 500b, thus maintaining insulation between the second power terminal 300b and the other power terminals. Furthermore, this reduces restrictions on the liquid cooling medium, allowing for conductive liquid cooling, thus reducing costs and increasing efficiency.

[0135] For example, the volume resistivity of the second liquid cooling tube 500b may be greater than or equal to about 10 8 Ω·cm. For example, the volume resistivity of the second liquid cooling tube 500b may be greater than or equal to about 10 10 Ω·cm.

[0136] In some examples, the first liquid-cooling pipe 500 a may be a flexible pipe, that is, the first liquid-cooling pipe 500 a may be made of a flexible material.

[0137] This facilitates a tight fit between the first liquid cooling tube 500a, the first power terminal 300a, and the first cover plate 400a, ensuring efficient heat dissipation from the first power terminal 300a. Furthermore, the dimensional accuracy requirements for the first liquid cooling tube 500a are relatively low, making it easier to assemble the first liquid cooling tube 500a between the first power terminal 300a and the first cover plate 400a. Furthermore, the first liquid cooling tube 500a is easily bendable, making the shape of the first pipe passage through which the first liquid cooling tube 500a passes relatively easy, thus facilitating easier assembly of the first liquid cooling tube 500a between the first power terminal 300a and the first cover plate 400a.

[0138] For example, the first liquid cooling tube 500a can be made of silicone or an elastic resin. For example, the first liquid cooling tube 500a can be made of silicone. For another example, to increase the strength of the first liquid cooling tube 500a, the first liquid cooling tube 500a can be made of glass fiber braided reinforced silicone.

[0139] In some other possible implementations, the first liquid-cooling tube 500a may be a hard tube, that is, the first liquid-cooling tube 500a may be made of a hard material.

[0140] In some examples, a thermal interface material (TIM) may be provided between the first liquid cooling tube 500a and the first power terminal 300a and the first cover plate 400a, and the first liquid cooling tube 500a may perform heat exchange with the first power terminal 300a and the first cover plate 400a through the TIM.

[0141] In this way, a higher heat exchange efficiency can be achieved between the first liquid cooling tube 500a and the first power terminal 300a and the first cover plate 400a, thereby facilitating efficient heat dissipation of the first power terminal 300a by the first liquid cooling tube 500a.

[0142] Exemplarily, the thermal interface material may be thermal grease or gel.

[0143] In some examples, the second liquid-cooling pipe 500 b may be a flexible pipe, that is, the second liquid-cooling pipe 500 b may be made of a flexible material.

[0144] This facilitates a tight fit between the second liquid cooling tube 500b, the second power terminal 300b, and the second cover plate 400b, ensuring efficient heat dissipation from the second power terminal 300b. Furthermore, the dimensional accuracy requirements for the second liquid cooling tube 500b are relatively low, making it easier to assemble the second liquid cooling tube 500b between the second power terminal 300b and the second cover plate 400b. Furthermore, the second liquid cooling tube 500b is easily bendable, making the shape of the second pipe passage through which the second liquid cooling tube 500b passes relatively easy, thus facilitating assembly of the second liquid cooling tube 500b between the second power terminal 300b and the second cover plate 400b.

[0145] For example, the second liquid cooling tube 500b can be made of silicone or an elastic resin. For example, the second liquid cooling tube 500b can be made of silicone. For another example, to increase the strength of the second liquid cooling tube 500b, the second liquid cooling tube 500b can be made of glass fiber braided reinforced silicone.

[0146] In some other possible implementations, the second liquid-cooling tube 500b may be a hard tube, that is, the second liquid-cooling tube 500b may be made of a hard material.

[0147] In some examples, a thermal interface material may be provided between the second liquid cooling tube 500b, the second power terminal 300b, and the second cover plate 400b, and the second liquid cooling tube 500b may exchange heat with the second power terminal 300b and the second cover plate 400b through the thermal interface material.

[0148] In this way, a higher heat exchange efficiency can be achieved between the second liquid cooling tube 500b and the second power terminal 300b and the second cover plate 400b, thereby facilitating efficient heat dissipation of the second power terminal 300b by the second liquid cooling tube 500b.

[0149] In some examples, the first cover plate 400 a contacts the first power terminal 300 a .

[0150] In this way, heat from the first power terminal 300a is not only efficiently transferred to the first liquid-cooling tube 500a via the walls of the first groove 360a, but can also be more efficiently transferred to the first liquid-cooling tube 500a via the first cover plate 400a. This improves the heat dissipation efficiency of the first liquid-cooling tube 500a from the first power terminal 300a. Furthermore, the stability of the crimping connection between the first cover plate 400a and the first power terminal 300a is improved.

[0151] Exemplarily, the surface of the first cover plate 400 a facing the first surface 340 a is pressed onto the first power terminal 300 a .

[0152] In some possible implementations, the first cover plate 400a is a heat-conducting plate, that is, the first cover plate 400a is made of a material with good thermal conductivity.

[0153] In this way, the first power terminal 300a can transfer heat to the first liquid cooling tube 500a through the first cover plate 400a with high efficiency, which is beneficial to improving the heat dissipation efficiency of the first power terminal 300a.

[0154] In some possible implementations, the first cover plate 400a is a conductive plate, that is, the first cover plate 400a is made of a material with good electrical conductivity.

[0155] In this way, the current on the first power terminal 300a can be conducted through the first cover plate 400a, and the first power terminal 300a and the first cover plate 400a can form a larger current flow cross section, which is conducive to improving the output power of the first power terminal 300a.

[0156] Exemplarily, the first cover plate 400a is a metal plate, such as, but not limited to, a copper plate, an aluminum plate, and the like.

[0157] In this way, the first cover plate 400a can have better thermal conductivity and better electrical conductivity.

[0158] In some other possible implementations, the first cover plate 400a is an insulating plate.

[0159] In this way, the first power terminal 300a is not easily electrically connected to other power terminals (such as the second power terminal 300b) through the first cover 400a, which helps to keep the first power terminal 300a insulated from the other power terminals.

[0160] For example, the first cover plate 400 a may include, but is not limited to, a ceramic plate, a polyamide-6 (PA6) plate, and the like.

[0161] In some examples, the second cover plate 400 b contacts the second power terminal 300 b .

[0162] In this way, heat from the second power terminal 300b is not only efficiently transferred to the second liquid-cooling tube 500b via the walls of the second groove 360b, but can also be more efficiently transferred to the second liquid-cooling tube 500b via the second cover plate 400b. This improves the heat dissipation efficiency of the second liquid-cooling tube 500b to the second power terminal 300b. Furthermore, the stability of the crimping connection between the second cover plate 400b and the second power terminal 300b is improved.

[0163] Exemplarily, a surface of the second cover plate 400 b facing the second surface 340 b is pressed onto the second power terminal 300 b .

[0164] In some possible implementations, the second cover plate 400b is a heat-conducting plate, that is, the second cover plate 400b is made of a material with good thermal conductivity.

[0165] In this way, the second power terminal 300b can transfer heat to the second liquid cooling tube 500b through the second cover plate 400b with high efficiency, which is beneficial to improving the heat dissipation efficiency of the second power terminal 300b.

[0166] In some possible implementations, the second cover plate 400b is a conductive plate, that is, the second cover plate 400b is made of a material with good electrical conductivity.

[0167] In this way, the current on the second power terminal 300b can be conducted through the second cover plate 400b, and the second power terminal 300b and the second cover plate 400b can form a larger current flow cross section, which is conducive to improving the output power of the second power terminal 300b.

[0168] Exemplarily, the second cover plate 400b is a metal plate, such as, but not limited to, a copper plate, an aluminum plate, and the like.

[0169] In this way, the second cover plate 400b can have better thermal conductivity and better electrical conductivity.

[0170] In some other possible implementations, the second cover plate 400b is an insulating plate.

[0171] In this way, the second power terminal 300b is not easily electrically connected to other power terminals (such as the first power terminal 300a) through the second cover 400b, which helps to keep the second power terminal 300b insulated from other power terminals.

[0172] For example, the second cover plate 400 b may include, but is not limited to, a ceramic plate, a polyamide-6 (PA6) plate, and the like.

[0173] Figure 8 for Figure 2 A schematic diagram of another perspective of the first power terminal and the second power terminal of the gun tip provided in FIG.

[0174] like Figure 8As shown, in some possible embodiments, the first groove 360a includes a first bent section 362a, a first straight slot section 361a and a second straight slot section 363a. The first straight slot section 361a and the second straight slot section 363a both extend along the length direction of the first power terminal 300a. One end of the first straight slot section 361a passes through the end surface of the first end 350a, and the other end of the first straight slot section 361a is connected to one end of the first bent section 362a. The other end of the first bent section 362a is connected to one end of the second straight slot section 363a, and the other end of the second straight slot section 363a passes through the end surface of the first end 350a.

[0175] This reduces the number of bends in the first liquid cooling tube 500a, making it less susceptible to damage. This makes it easier to position the first liquid cooling tube 500a within the first groove 360a. Furthermore, the first bend section 362a can have a larger bending radius, allowing the first liquid cooling tube 500a positioned within the first groove 360a to have a larger bending radius. This facilitates the placement of the first liquid cooling tube 500a with a larger diameter, thereby improving heat dissipation for the first power terminal 300a. Furthermore, the substantially parallel first straight slot section 361a and second straight slot section 363a prevent the first liquid cooling tube 500a, which exits the first groove 360a from the first straight slot section 361a, from interfering with the first liquid cooling tube 500a, which exits the first groove 360a from the second straight slot section 363a. This facilitates connection of the first liquid cooling tube 500a to the first liquid inlet pipe 21a and the first liquid return pipe 22a.

[0176] The first straight slot section 361 a and the second straight slot section 363 a are arranged side by side along the width direction of the first power terminal 300 a .

[0177] A dimension of the first segment 310 a in the width direction of the first power terminal 300 a may be greater than a dimension of the first segment 310 a in the thickness direction of the first power terminal 300 a .

[0178] The portion of the first liquid cooling pipe 500a passing through the first pipe channel may extend in a U shape.

[0179] In some possible embodiments, the second groove 360b includes a second bent section 362b, a third straight slot section 361b and a fourth straight slot section 363b. The third straight slot section 361b and the fourth straight slot section 363b both extend along the length direction of the second power terminal 300b. One end of the third straight slot section 361b passes through the end surface of the second end 350b, and the other end of the third straight slot section 361b is connected to one end of the second bent section 362b. The other end of the second bent section 362b is connected to one end of the fourth straight slot section 363b, and the other end of the fourth straight slot section 363b passes through the end surface of the second end 350b.

[0180] This reduces the number of bends in the second liquid-cooling tube 500b, making it less susceptible to damage. This makes it easier to position the second liquid-cooling tube 500b within the second groove 360b. Furthermore, the second bend section 362b can have a larger bending radius, allowing the second liquid-cooling tube 500b positioned within the second groove 360b to have a larger bending radius. This facilitates the placement of a second liquid-cooling tube 500b with a larger diameter, thereby improving heat dissipation for the second power terminal 300b. Furthermore, the roughly parallel third and fourth straight slot sections 361b and 363b prevent the portion of the second liquid-cooling tube 500b extending from the third straight slot section 361b into the second groove 360b from interfering with the portion of the second liquid-cooling tube 500b extending from the fourth straight slot section 363b into the second groove 360b, thereby facilitating connection of the second liquid-cooling tube 500b with the second liquid inlet pipe 21b and the second liquid return pipe 22b.

[0181] The third straight slot section 361 b and the fourth straight slot section 363 b are arranged side by side along the width direction of the second power terminal 300 b .

[0182] A dimension of the third segment 310 b in the width direction of the second power terminal 300 b may be greater than a dimension of the third segment 310 b in the thickness direction of the second power terminal 300 b .

[0183] The portion of the second liquid cooling pipe 500b that passes through the second pipe channel may extend in a U shape.

[0184] Figure 9 for Figure 2 Schematic diagram of the first cover plate and the second cover plate of the gun head provided in.

[0185] like Figure 9 As shown, and reference Figure 6 In some possible embodiments, the first cover plate 400a includes a third surface 410a and a third end 420a. The third surface 410a is disposed opposite the first surface 340a. The third end 410a is located on the side of the first cover plate 400a away from the output end of the charging gun 10. The third surface 410a has a third groove 430a opposite the first groove 360a. Both ends of the third groove 430a extend through the end surface of the third end 420a. In other words, the ends of the third groove 430a are openings located on the end surface of the third end 420a. The first groove 360a and the third groove 430a enclose and form a first pipeline channel.

[0186] This allows for a larger space in the formed first pipeline channel, facilitating the placement of the larger-diameter first liquid cooling tube 500a, resulting in better heat dissipation for the first power terminal 300a. Furthermore, the heat exchange surface between the first liquid cooling tube 500a and the first cover plate 400a is larger, facilitating efficient heat exchange between the first cover plate 400a and the first liquid cooling tube 500a. The first power terminal 300a can efficiently exchange heat with the first liquid cooling tube 500a through the first cover plate 400a. Furthermore, the first liquid cooling tube 500a, partially protruding from the first surface 340a, is conveniently positioned within the first recess 360a. This allows the first cover plate 400a to securely and tightly pressurize the portion of the first liquid cooling tube 500a protruding from the first surface 340a onto the first power terminal 300a, reducing any restrictions on the shape of the first liquid cooling tube 500a.

[0187] Exemplarily, the first liquid cooling tube 500a is a circular tube, and the bending radius of the first liquid cooling tube 500a is less than 10D1, where D1 is the outer diameter of the first liquid cooling tube 500a.

[0188] In some possible embodiments, the second cover plate 400b includes a fourth surface 410b and a fourth end 420b. The fourth surface 410b is arranged opposite to the second surface 340b. The fourth end 410b is located on the side of the second cover plate 400b away from the output end of the charging gun 10. The fourth surface 410b has a fourth groove 430b opposite to the second groove 360b. Both ends of the fourth groove 430b pass through the end surface of the fourth end 420b. The second groove 360b and the fourth groove 430b are arranged to form a second pipeline channel.

[0189] This allows for a larger space within the formed second pipe channel, facilitating the placement of a thicker second liquid cooling tube 500b, resulting in better heat dissipation for the second power terminal 300b. Furthermore, the heat exchange surface between the second liquid cooling tube 500b and the second cover plate 400b is larger, facilitating efficient heat exchange between the second cover plate 400b and the second liquid cooling tube 500b. The second power terminal 300b can efficiently exchange heat with the second liquid cooling tube 500b through the second cover plate 400b. Furthermore, facilitating the placement of the second liquid cooling tube 500b, which partially protrudes from the second surface 340b, within the second groove 360b allows the second cover plate 400b to stably and tightly press the second liquid cooling tube 500b, which partially protrudes from the second surface 340b, onto the second power terminal 300b, thereby reducing restrictions on the shape of the second liquid cooling tube 500b.

[0190] Exemplarily, the second liquid cooling tube 500b is a circular tube, and the bending radius of the second liquid cooling tube 500b is less than 10D2, where D2 is the outer diameter of the second liquid cooling tube 500b.

[0191] In some possible implementations, the first power terminal 300a and the second power terminal 300b are arranged side by side along the first direction, making it easier to arrange the first power terminal 300a and the second power terminal 300b on the gun head holder 100. In addition, it is also convenient to plug and unplug the first power terminal 300a and the second power terminal 300b along with the gun head holder 100, so as to facilitate electrical connection and disconnection with the electric vehicle.

[0192] In some possible implementations, the first cover plate 400 a is located on one side of the first power terminal 300 a in the second direction.

[0193] In this way, the covering direction of the first cover plate 400a is different from the arrangement direction of the first power terminal 300a and the second power terminal 300b, and the second power terminal 300b has little effect on the fixation of the first cover plate 400a and the first power terminal 300a, which facilitates the fixation of the first cover plate 400a and the first power terminal 300a.

[0194] Illustratively, the size of the first power terminal 300a in the first direction is larger than the size of the first power terminal 300a in the second direction, so as to reserve assembly space in the second direction for other components that fix the first cover plate 400a and the first power terminal 300a, making it easier to fix the first cover plate 400a and the first power terminal 300a.

[0195] In some examples, the thickness direction of the first power terminal 300 a is perpendicular to the first direction, and the thickness direction of the first power terminal 300 a is in the same direction as the second direction.

[0196] In other examples, the thickness direction of the first power terminal 300a is angled with both the first direction and the second direction. That is, the thickness direction of the first power terminal 300a is not perpendicular to or in the same direction as the first direction, and the thickness direction of the first power terminal 300a is not perpendicular to or in the same direction as the second direction.

[0197] In some possible implementations, the second cover plate 400 b is located on one side of the second power terminal 300 b in the second direction.

[0198] In this way, the covering direction of the second cover plate 400b is different from the arrangement direction of the first power terminal 300a and the second power terminal 300b, and the first power terminal 300a has little effect on the fixation of the second cover plate 400b and the second power terminal 300b, which facilitates the fixation of the second cover plate 400b and the second power terminal 300b.

[0199] Illustratively, the size of the second power terminal 300b in the first direction is larger than the size of the second power terminal 300b in the second direction, so as to reserve assembly space in the second direction for other components that fix the second cover plate 400b to the second power terminal 300b, making it easier to fix the second cover plate 400b to the second power terminal 300b.

[0200] In some examples, the thickness direction of the second power terminal 300 b is perpendicular to the first direction, and the thickness direction of the second power terminal 300 b is in the same direction as the second direction.

[0201] In other examples, the thickness direction of the second power terminal 300b is angled with both the first direction and the second direction. That is, the thickness direction of the second power terminal 300b is not perpendicular to or in the same direction as the first direction, and the thickness direction of the second power terminal 300b is not perpendicular to or in the same direction as the second direction.

[0202] When the first cover plate 400a is located on one side of the first power terminal 300a in the second direction, and the second cover plate 400b is located on one side of the second power terminal 300b in the second direction, it is convenient to fix the first cover plate 400a and the first power terminal 300a, and the second cover plate 400b and the second power terminal 300b at the same time.

[0203] For example, the first cover plate 400a is located on one side of the first power terminal 300a in the second direction, and the second cover plate 400b is located on one side of the second power terminal 300b in the second direction. The thickness of the first power terminal 300a is perpendicular to the first direction and the same direction as the second direction. The thickness of the second power terminal 300b is perpendicular to the first direction and the same direction as the second direction. In this case, the first cover plate 400a and the first power terminal 300a, as well as the second cover plate 400b and the second power terminal 300b, can be simultaneously fixed by a single structural member.

[0204] Figure 10 A schematic diagram of a wire rack provided in an embodiment of the present application is shown. Figure 11 for Figure 2 Another exploded view of the gun head provided in .

[0205] like Figure 10 、 Figure 11 As shown, in some possible embodiments, the gun head 10 further includes a wire rack 200, which is used to be fixedly connected to the gun head base 100. Exemplarily, the wire rack 200 can be fixedly connected to the gun head base 100 by fastener connection, welding, etc.

[0206] The wire rack 200 has a first power terminal slot 211a and a second power terminal slot 211b. Both ends of the first power terminal slot 211a and the second power terminal slot 211b are open structures in the third direction. The first power terminal 300a is inserted into the first power terminal slot 211a, and the second power terminal 300b is inserted into the second power terminal slot 211b.

[0207] The first power terminal groove 211 a and the second power terminal groove 211 b are arranged side by side along the first direction.

[0208] Exemplarily, the first power terminal slot 211 a and the second power terminal slot 211 b are both located on one side of the wire rack 200 in the second direction.

[0209] Illustratively, the first section 310a is disposed in the first power terminal slot 211a, the second section 320a is located outside the first power terminal slot 211a, and one end of the first section 310a away from the second section 320a is located outside the first power terminal slot 211a.

[0210] Illustratively, the third section 310b is disposed in the second power terminal slot 211b, the fourth section 320b is located outside the second power terminal slot 211b, and one end of the third section 310b away from the fourth section 320b is located outside the second power terminal slot 211b.

[0211] One of the first power terminal 300a and the first cover plate 400a presses the other one of the first power terminal 300a and the first cover plate 400a onto the bobbin 200. One of the second power terminal 300b and the second cover plate 400b presses the other one of the second power terminal 300b and the second cover plate 400b onto the bobbin 200.

[0212] In this way, the first power terminal 300a, the first cover plate 400a, the first liquid cooling tube 500a, the second power terminal 300b, the second cover plate 400b and the second liquid cooling tube 500b can be assembled through the wire rack 200, and the assembly of the first power terminal 300a, the first cover plate 400a, the first liquid cooling tube 500a, the second power terminal 300b, the second cover plate 400b and the second liquid cooling tube 500b is relatively convenient, which makes it easy to fix the first power terminal 300a, the first cover plate 400a, the first liquid cooling tube 500a, the second power terminal 300b, the second cover plate 400b and the second liquid cooling tube 500b to the gun tip seat 100. In addition, compared with the solution of fixing the first power terminal 300a, the first cover plate 400a, the first liquid cooling tube 500a, the second power terminal 300b, the second cover plate 400b and the second liquid cooling tube 500b by wrapping with plastic parts, the wire rack 200 is lighter, which is also beneficial to reducing the weight of the gun head 10.

[0213] For example, the wire rack 200 is made of an insulating material, so that the first power terminal 300 a and the second power terminal 300 b are not easily electrically connected through the wire rack 200 .

[0214] In some examples, the first power terminal 300 a is located between the first cover plate 400 a and the wire rack 200 , and the first cover plate 400 a presses the first power terminal 300 a onto the wire rack 200 .

[0215] In other examples, the first cover plate 400 a is located between the first power terminal 300 a and the wire rack 200 , and the first power terminal 300 a presses the first cover plate 400 a onto the wire rack 200 .

[0216] For example, the gun head 10 may further include a crimping piece, which is fixedly connected to the wire rack 200 . The crimping piece can crimp the first power terminal 300 a and the first cover plate 400 a onto the wire rack 200 .

[0217] In some examples, the second power terminal 300 b is located between the second cover plate 400 b and the wire rack 200 , and the second cover plate 400 b presses the second power terminal 300 b onto the wire rack 200 .

[0218] In other examples, the second cover plate 400 b is located between the second power terminal 300 b and the wire rack 200 , and the second power terminal 300 b presses the second cover plate 400 b onto the wire rack 200 .

[0219] For example, the crimping member may crimp the second power terminal 300 b and the second cover plate 400 b onto the bobbin 200 .

[0220] The groove wall of the first power terminal groove 211 a can limit the movement of the first power terminal 300 a.

[0221] The groove wall of the second power terminal groove 211 b can limit the movement of the second power terminal 300 b.

[0222] For example, a first slot 212a is provided at a position opposite to the first partition plate section 330a on the wire rack 200. The first partition plate section 330a is locked in the first slot 212a to limit the movement of the first power terminal 300a in the third direction.

[0223] For example, a second slot 212b is provided on the wire rack 200 at a position opposite to the second partition plate section 330b. The second partition plate section 330b is locked in the second slot 212b to limit the movement of the second power terminal 300b in the third direction.

[0224] In some possible embodiments, the first partition segment 330a protrudes from the first surface 340a, and the projection of the end surface of the first partition segment 330a toward one end of the first cover plate 400a along the third direction at least partially overlaps with the projection of the end surface of the first cover plate 400a toward one end of the first partition segment 330a along the third direction.

[0225] In this way, heat from the first power terminal 300a can be transferred to the first cover plate 400a via the first partition plate segment 330a, thereby improving the thermal conductivity between the first power terminal 300a and the first cover plate 400a. Furthermore, electrical conductivity can also be established between the second segment 320a and the first cover plate 400a via the portion of the first partition plate segment 330a that protrudes from the first surface 340a, thereby improving the output power of the first power terminal 300a.

[0226] In some possible embodiments, the second partition segment 330b protrudes from the second surface 340b, and the projection of the end surface of the second partition segment 330b toward one end of the second cover plate 400b along the third direction at least partially overlaps with the projection of the end surface of the second cover plate 400b toward one end of the second partition segment 330b along the third direction.

[0227] In this way, heat from the second power terminal 300b can be transferred to the second cover plate 400b via the second partition plate segment 330b, thereby improving the thermal conductivity between the second power terminal 300b and the second cover plate 400b. Furthermore, electrical conductivity can also be established between the fourth segment 320b and the second cover plate 400b via the portion of the second partition plate segment 330b protruding from the second surface 340b, thereby improving the output power of the second power terminal 300b.

[0228] In some possible embodiments, the gun head 10 further includes an insulating pressure plate 600, which is fixedly connected to the wire rack 200. The insulating pressure plate 600 crimps the first power terminal 300a, the first cover plate 400a, the second power terminal 300b and the second cover plate 400b onto the wire rack 200. The first cover plate 400a and the second cover plate 400b are spaced apart, and the first cover plate 400a and the second cover plate 400b are insulated from each other.

[0229] In this way, the first cover plate 400a and the second cover plate 400b can be easily crimped. In addition, the first power terminal 300a and the second power terminal 300b are not easily electrically connected through the first cover plate 400a and the second cover plate 400b, which can reduce the restrictions on the selection of the first cover plate 400a and the second cover plate 400b, and facilitate the selection of metal plates with good thermal conductivity as the first cover plate 400a and the second cover plate 400b.

[0230] In some examples where the first power terminal 300 a is located between the first cover plate 400 a and the bobbin 200 , the insulating pressing plate 600 is pressed against a side of the first cover plate 400 a facing away from the first power terminal 300 a .

[0231] In some examples where the first cover plate 400 a is located between the first power terminal 300 a and the bobbin 200 , the insulating pressing plate 600 is pressed against a side of the first power terminal 300 a facing away from the first cover plate 400 a .

[0232] The insulating pressing plate 600 and the wire rack 200 press the first liquid cooling tube 500 a through the first cover plate 400 a and the first power terminal 300 a .

[0233] In some examples where the second power terminal 300 b is located between the second cover plate 400 b and the bobbin 200 , the insulating pressing plate 600 is pressed against a side of the second cover plate 400 b facing away from the second power terminal 300 b .

[0234] In some examples where the second cover plate 400 b is located between the second power terminal 300 b and the bobbin 200 , the insulating pressing plate 600 is pressed against a side of the second power terminal 300 b facing away from the second cover plate 400 b .

[0235] The insulating pressing plate 600 and the wire rack 200 press the second liquid cooling tube 500 b through the second cover plate 400 b and the second power terminal 300 b.

[0236] For example, the insulating plate 600 can be fixedly connected to the wire rack 200 by fasteners. For example, the insulating plate 600 can be fixedly connected to the wire rack 200 by threaded fasteners.

[0237] In some examples, the first cover plate 400 a , the second cover plate 400 b , the insulating pressing plate 600 , and the wire rack 200 are separate structures.

[0238] In some examples where the first power terminal 300 a is located between the first cover plate 400 a and the bobbin 200 , the insulating pressing plate 600 and the first cover plate 400 a may be an integral structure.

[0239] In some examples where the first cover plate 400 a is located between the first power terminal 300 a and the wire rack 200 , the first cover plate 400 a and the wire rack 200 may be an integral structure.

[0240] In some examples where the second power terminal 300 b is located between the second cover plate 400 b and the wire rack 200 , the insulating pressing plate 600 and the second cover plate 400 b may be an integral structure.

[0241] In some examples where the second cover plate 400 b is located between the second power terminal 300 b and the wire rack 200 , the second cover plate 400 b and the wire rack 200 may be an integral structure.

[0242] Figure 12 A schematic diagram of an insulating pressure plate provided in an embodiment of the present application.

[0243] like Figure 12 As shown, and see Figure 11 In some possible embodiments, the first cover plate 400a is located between the first power terminal 300a and the insulating pressure plate 600, and the second cover plate 400b is located between the second power terminal 300b and the insulating pressure plate 600. The first cover plate 400a, the second cover plate 400b and the insulating pressure plate 600 are split structures. The insulating pressure plate 600 has a fifth limiting groove 610 and a sixth limiting groove 620 on the side facing the first cover plate 400a and the second cover plate 400b. The first cover plate 400a is clamped in the fifth limiting groove 610, and the second cover plate 400b is clamped in the sixth limiting groove 620.

[0244] Thus, the fifth limiting groove 610 can limit the relative movement of the first cover plate 400a and the insulating pressure plate 600, and the sixth limiting groove 620 can limit the relative movement of the second cover plate 400b and the insulating pressure plate 600, thereby preventing the first cover plate 400a and the second cover plate 400b from electrically contacting each other due to relative movement. Furthermore, when assembling the insulating pressure plate 600, alignment of the insulating pressure plate 600 with the first cover plate 400a and the second cover plate 400b is facilitated.

[0245] Illustratively, both ends of the fifth limiting groove 610 in the third direction respectively penetrate the end surfaces of the insulating pressing plate 600 in the third direction, so that the insulating pressing plate 600 and the first cover plate 400a are assembled more easily.

[0246] Illustratively, both ends of the sixth limiting groove 620 in the third direction respectively penetrate the end surfaces of the insulating pressing plate 600 in the third direction, so that the insulating pressing plate 600 and the second cover plate 400b are assembled more easily.

[0247] In other possible embodiments, the first cover plate 400a can be fixedly connected to the wire rack 200, crimping the first power terminal 300a onto the wire rack 200. The second cover plate 400b can be fixedly connected to the wire rack 200, crimping the second power terminal 300b onto the wire rack 200. In this case, the gun head 10 may not include the insulating pressure plate 600. For example, the first cover plate 400a can be fixedly connected to the wire rack 200 by means of a snap connection, fastener connection, or the like, and the second cover plate 400b can be fixedly connected to the wire rack 200 by means of a snap connection, fastener connection, or the like.

[0248] In some possible embodiments, the wire rack 200 includes a first frame 210 and a second frame 220. The second frame 220 is detachably mounted on a side of the first frame 210, and the side of the first frame 210 facing the second frame 220 has a first power terminal slot 211a and a second power terminal slot 211b. For example, the second frame 220 is detachably mounted on a side of the first frame 210 in the second direction, and the side of the first frame 210 facing the second frame 220 in the second direction has a first power terminal slot 211a and a second power terminal slot 211b. One of the first power terminal 300a and the first cover plate 400a presses the other of the first power terminal 300a and the first cover plate 400a onto the first frame 210. One of the second power terminal 300b and the second cover plate 400b presses the other of the second power terminal 300b and the second cover plate 400b onto the first frame 210. The first power terminal 300 a and the second power terminal 300 b are located between the second frame 220 and the first frame 210 .

[0249] In this way, when assembling the first power terminal 300a, the first liquid-cooling tube 500a, the first cover plate 400a, the second power terminal 300b, the second liquid-cooling tube 500b, the disc cover plate and the insulating pressure plate 600, the second frame 220 can be removed from the first frame 210 first to prevent the second frame 220 from obstructing the assembly of the first power terminal 300a, the first liquid-cooling tube 500a, the first cover plate 400a, the second power terminal 300b, the second liquid-cooling tube 500b, the disc cover plate and the insulating pressure plate 600. After the first power terminal 300a, the first liquid-cooling tube 500a, the first cover plate 400a, the second power terminal 300b, the second liquid-cooling tube 500b, the disc cover plate and the insulating pressure plate 600 are assembled to the first frame 210, the second frame 220 can be assembled to the first frame 210, which makes the assembly of the gun tip 10 more convenient.

[0250] In some examples, the first frame 210 and the second frame 220 can be snap-connected.

[0251] In other examples, the first frame 210 and the second frame 220 may be connected by threaded fasteners.

[0252] Exemplarily, the second frame 220 can be used to fix one or more of signal terminals, ground terminals, etc.

[0253] Exemplarily, the insulating plate 600 is fixedly connected to the first frame 210. For example, the insulating plate 600 can be fixedly connected to the first frame 210 via fasteners. The insulating plate 600 presses the first cover 400a, the first power terminal 300a, the second cover 400b, and the second power terminal 300b onto the first frame 210.

[0254] In some other possible implementations, the wire rack 200 may also be an integrated structure.

[0255] Figure 13 for Figure 2 A thermal simulation of the gun tip is provided in . Figure 13 In FIG, the current flowing through the first power terminal 300a and the second power terminal 300b is 550A. Figure 13 As shown, Figure 2 In the gun tip 10 provided in the embodiment, when the current flowing through the first power terminal 300a and the second power terminal 300b is 550A, the temperature of each of the first power terminal 300a and the second power terminal 300b does not exceed 76.6°C, and the first power terminal 300a and the second power terminal 300b can achieve a steady-state current capacity of 550A.

[0256] Figure 14 A schematic diagram of another gun tip provided in an embodiment of the present application.

[0257] In other examples where the first power terminal 300a and the second power terminal 300b are arranged side by side along the first direction, the first cover plate 400a is located on one side of the first power terminal 300a in the first direction. In other words, the first cover plate 400a is located on one side of the arrangement direction of the first power terminal 300a and the second power terminal 300b.

[0258] This facilitates the placement of the first power terminal 300a, which has a relatively wide first surface 340a. The wider first surface 340a provides ample space for the first liquid cooling tube 500a to bend, making it easier for the first liquid cooling tube 500a to bend between the first power terminal 300a and the first cover plate 400a, thus increasing flexibility in the placement of the first liquid cooling tube 500a. Furthermore, the larger bending space facilitates the placement of a first liquid cooling tube 500a with a larger diameter, thereby improving heat dissipation for the first power terminal 300a.

[0259] Exemplarily, the size of the first power terminal 300a in the first direction is smaller than that in the second direction, so that the first power terminal 300a occupies less space in the first direction based on the larger width of the first surface 340a.

[0260] In some examples, the thickness direction of the first power terminal 300 a is perpendicular to the second direction, and the thickness direction of the first power terminal 300 a is in the same direction as the first direction.

[0261] In other examples, the thickness direction of the first power terminal 300a is angled with both the first direction and the second direction. That is, the thickness direction of the first power terminal 300a is not perpendicular to or in the same direction as the first direction, and the thickness direction of the first power terminal 300a is not perpendicular to or in the same direction as the second direction.

[0262] In other examples where the first power terminal 300a and the second power terminal 300b are arranged side by side along the first direction, the second cover plate 400b is located on one side of the second power terminal 300b in the first direction. In other words, the second cover plate 400b is located on one side of the second power terminal 300a and the second power terminal 300b in the arrangement direction.

[0263] This facilitates the placement of the second power terminal 300b, which has a larger width on the second surface 340b. The wider second surface 340b provides ample space for the second liquid-cooling tube 500b to bend, making it easier for the second liquid-cooling tube 500b to bend between the second power terminal 300b and the second cover plate 400b, allowing for greater flexibility in the placement of the second liquid-cooling tube 500b. Furthermore, the larger bending space facilitates the placement of a second liquid-cooling tube 500b with a larger diameter, resulting in improved heat dissipation for the second power terminal 300b.

[0264] Exemplarily, the size of the second power terminal 300b in the first direction is smaller than that in the second direction, so that the second power terminal 300b occupies less space in the first direction based on the larger width of the second surface 340b.

[0265] In some examples, the thickness direction of the second power terminal 300 b is perpendicular to the second direction, and the thickness direction of the second power terminal 300 b is in the same direction as the first direction.

[0266] In other examples, the thickness direction of the first power terminal 300b is angled with both the first direction and the second direction. That is, the thickness direction of the second power terminal 300b is not perpendicular to or in the same direction as the first direction, and the thickness direction of the second power terminal 300b is not perpendicular to or in the same direction as the second direction.

[0267] Figure 15 A schematic diagram of another gun tip provided in an embodiment of the present application, Figure 16 for Figure 15 Exploded view of the gun head provided in.

[0268] like Figure 15 、 Figure 16As shown, in some possible embodiments, the gun tip 10 further includes a pressing member 700. The first power terminal 300a is fixedly connected to the first cover plate 400a, the second power terminal 300b is fixedly connected to the second cover plate 400b, and the pressing member 700 is fixedly connected to the gun tip base 100. The pressing member 700 presses and fixes the first power terminal 300a and the second power terminal 300b on the gun tip base 100.

[0269] In this way, the first power terminal 300a and the second power terminal 300b can be secured to the gun tip base 100 via the clamping member 700, making assembly of the gun tip 10 more convenient. Furthermore, compared to solutions that secure the first power terminal 300a, first cover plate 400a, first liquid cooling tube 500a, second power terminal 300b, second cover plate 400b, and second liquid cooling tube 500b with plastic wrap, the clamping member 700 is lighter, further contributing to a lighter weight for the gun tip 10.

[0270] For example, the first power terminal 300 a and the first cover plate 400 a may be fixedly connected by fastener connection, snap connection, or the like.

[0271] For example, the second power terminal 300b and the second cover plate 400b may be fixedly connected by fastener connection, snap connection, or the like.

[0272] Illustratively, the gun head base 100 has a matching portion 110 that matches with the pressing member 700 , and the pressing member 700 can be fixedly connected to the matching portion 110 by a fastener.

[0273] Exemplarily, the pressing member 700 is an insulating pressing member 700 , so that the first power terminal 300 a and the second power terminal 300 b are not easily electrically connected through the pressing member 700 , thereby facilitating insulation between the first power terminal 300 a and the second power terminal 300 b .

[0274] Figure 17 A schematic diagram of a compression member provided in an embodiment of the present application is shown. Figure 18 for Figure 15 A schematic diagram of the first power terminal, the second power terminal, the first cover plate and the second cover plate of the gun head provided in.

[0275] like Figure 7 、 Figure 18 As shown, and see Figure 16 In some possible embodiments, the clamping member 700 is crimped onto the first end 350a and the second end 350b, and the clamping member 700 clamps and fixes the first power terminal 300a and the second power terminal 300b on the gun tip seat 100 along the third direction. In this way, the assembly of the clamping member 700 and the gun tip seat 100 is more convenient.

[0276] In some examples, the first end 350a has a first limiting groove 351a, the second end 350b has a second limiting groove 351b, the pressing member 700 has a first limiting portion 741 and a second limiting portion 751, the first limiting portion 741 is clamped in the first limiting groove 351a, and the second limiting portion 751 is clamped in the second limiting groove 351b.

[0277] In this way, the first power terminal 300a and the second power terminal 300b can be fixed more firmly.

[0278] Illustratively, the third end 420a has a third limiting groove 421a opposite to the first limiting groove 351a, and the first limiting portion 741 is further clamped in the third limiting groove 421a.

[0279] Illustratively, the fourth end 420b has a fourth limiting groove 421b opposite to the second limiting groove 351b, and the second limiting portion 751 is further clamped in the fourth limiting groove 421b.

[0280] Exemplarily, both ends of the first groove 360a are located on both sides of the first limiting groove 351a, and the inlet end of the first liquid cooling tube 500a and the outlet end of the first liquid cooling tube 500a are located on both sides of the pressing member 700.

[0281] Exemplarily, two ends of the second groove 360b are respectively located on both sides of the second limiting groove 351b, and the inlet end of the second liquid cooling tube 500b and the outlet end of the second liquid cooling tube 500b are respectively located on both sides of the pressing member 700.

[0282] Exemplarily, the clamping member 700 includes a first connecting portion 710, a second connecting portion 720, a third connecting portion 730, a first crimping portion 740 and a second crimping portion 750. The first connecting portion 710, the second connecting portion 720 and the third connecting portion 730 all extend along the third direction. One end of the first connecting portion 710 is fixedly connected to the gun tip seat 100, and the other end of the first connecting portion 710 is fixedly connected to one end of the first crimping portion 740. The other end of the first crimping portion 740 is fixedly connected to one end of the second connecting portion 720, and the other end of the second connecting portion 720 is fixedly connected to the gun tip seat 100. The first connecting portion 710 and the second connecting portion 720 are spaced apart, and the first power terminal 300a and the first cover plate 400a are arranged between the first connecting portion 710 and the second connecting portion 720. The first crimping portion 740 is crimped on the first end 350a. The first crimping portion 740 is provided with a first limiting portion 741 on the side of the first crimping portion 740 facing the gun tip seat 100 along the third direction. One end of the third connecting portion 730 is fixedly connected to the gun tip base 100, and the other end of the third connecting portion 730 is fixedly connected to one end of the second crimping portion 750. The other end of the second crimping portion 750 is fixedly connected to one end of the second connecting portion 720 connected to the first crimping portion 740. The third connecting portion 730 and the second connecting portion 720 are spaced apart. The second power terminal 300b and the second cover plate 400b are disposed between the third connecting portion 730 and the fourth connecting portion. The second crimping portion 750 is crimped onto the second end 350b. A second limiting portion 751 is provided on the side of the second crimping portion 750 along the third direction facing the gun tip base 100. This facilitates crimping of the first power terminal 300a and the second power terminal 300b by the pressing member 700.

[0283] Exemplarily, the mating portion 110 includes a first mating sub-portion, a second mating sub-portion, and a third mating sub-portion spaced apart from each other. The first mating sub-portion is disposed opposite the first connecting portion 710 along a third direction, and the first connecting portion 710 is fixedly connected to the first mating sub-portion via a fastener extending through the first connecting portion 710 along the third direction. The second mating sub-portion is disposed opposite the second connecting portion 720 along the third direction, and the second connecting portion 720 is fixedly connected to the second mating sub-portion via a fastener extending through the second connecting portion 720 along the third direction. The third mating sub-portion is disposed opposite the third connecting portion 730 along the third direction, and the third connecting portion 730 is fixedly connected to the third mating sub-portion via a fastener extending through the third connecting portion 730 along the third direction.

[0284] In other possible embodiments, the first power terminal 300a further includes a fifth surface, the fifth surface and the first surface 340a being located on opposite sides of the first power terminal 300a, respectively. The second power terminal 300a further includes a sixth surface, the sixth surface and the second surface 340b being located on opposite sides of the second power terminal 300b, respectively. The pressing member 700 is pressed against the fifth and sixth surfaces. For example, the pressing member 700 includes a first sub-component and a second sub-component. The first sub-component is crimped onto the fifth surface and fixedly connected to the gun tip base 100, such that the first sub-component can press and secure the first power terminal 300a against the inner circumferential wall of the gun tip base 100; the second sub-component is crimped onto the sixth surface and fixedly connected to the gun tip base 100, such that the second sub-component can press and secure the second power terminal 300b against the inner circumferential wall of the gun tip base 100.

[0285] In the description of the embodiments of this application, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0286] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0287] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A charging gun (1), characterized in that: It comprises a first power terminal (300a), a second power terminal (300b), a first cover plate (400a), a second cover plate (400b), a first liquid cooling tube (500a) and a second liquid cooling tube (500b); The first power terminal (300a) includes a first surface (340a) and a first end (350a), the first end (350a) is located on a side of the first power terminal (300a) away from the output end of the charging gun (1), the first surface (340a) has a first groove (360a), both ends of the first groove (360a) pass through the end surface of the first end (350a), the first cover plate (400a) is arranged opposite to the first surface (340a), the first cover plate (400a) and the first groove (360a) are arranged to form a first pipeline channel, and the first liquid cooling pipe (500a) is arranged in the first pipeline channel; The second power terminal (300b) includes a second surface (340b) and a second end (350b), the second end (350b) is located on a side of the second power terminal (300b) away from the output end of the charging gun (1), the second surface (340b) has a second groove (360b), both ends of the second groove (360b) pass through the end surface of the second end (350b), the second cover plate (400b) is arranged opposite to the second surface (340b), the second cover plate (400b) and the second groove (360b) are arranged to form a second pipeline channel, and the second liquid cooling pipe (500b) is arranged in the second pipeline channel; Wherein, the first liquid cooling tube (500a) and the second liquid cooling tube (500b) are both heat conduction tubes.

2. The charging gun (1) according to claim 1, characterized in that The first power terminal (300a) and the second power terminal (300b) are arranged side by side along a first direction; The first cover plate (400a) is located on one side of the first power terminal (300a) in the second direction, and the size of the first power terminal (300a) in the first direction is larger than the size of the first power terminal (300a) in the second direction; and / or, The second cover plate (400b) is located on one side of the second power terminal (300b) in the second direction, and the size of the second power terminal (300b) in the first direction is larger than the size of the second power terminal (300b) in the second direction.

3. The charging gun (1) according to claim 2, characterized in that Also included is a wire rack (200); The wire rack (200) has a first power terminal slot (211a) and a second power terminal slot (211b); The first power terminal (300a) is inserted into the first power terminal slot (211a), and one of the first power terminal (300a) and the first cover plate (400a) presses the other of the first power terminal (300a) and the first cover plate (400a) onto the wire rack (200); The second power terminal (300b) is inserted into the second power terminal slot (211b), and one of the second power terminal (300b) and the second cover plate (400b) presses the other of the second power terminal (300b) and the second cover plate (400b) onto the wire rack (200).

4. The charging gun (1) according to claim 1, characterized in that The first power terminal (300a) and the second power terminal (300b) are arranged side by side along a first direction; The first cover plate (400a) is located on one side of the first power terminal (300a) in the first direction, and the size of the first power terminal (300a) in the first direction is smaller than the size of the first power terminal (300a) in the second direction; and / or, The second cover plate (400b) is located on one side of the second power terminal (300b) in the first direction, and the size of the second power terminal (300b) in the first direction is smaller than the size of the second power terminal (300b) in the second direction.

5. The charging gun (1) according to claim 4, characterized in that It also includes a gun head seat (100) and a pressing member (700); The first power terminal (300a) is fixedly connected to the first cover plate (400a), the second power terminal (300b) is fixedly connected to the second cover plate (400b), the pressing member (700) is fixedly connected to the gun tip seat (100), and the pressing member (700) presses and fixes the first power terminal (300a) and the second power terminal (300b) on the gun tip seat (100).

6. The charging gun (1) according to claim 5, characterized in that The pressing member (700) is pressed against the first end (350a) and the second end (350b); The first end (350a) has a first limiting groove (351a), the second end (350b) has a second limiting groove (351b), the pressing member (700) has a first limiting portion (741) and a second limiting portion (751), the first limiting portion (741) is clamped in the first limiting groove (351a), and the second limiting portion (751) is clamped in the second limiting groove (351b).

7. The charging gun (1) according to any one of claims 1 to 6, characterized in that: It also includes a first liquid inlet pipe (21a), a second liquid inlet pipe (21b), a first liquid return pipe (22a) and a second liquid return pipe (22b); The inlet end of the first liquid cooling tube (500a) and the outlet end of the first liquid cooling tube (500a) are both located outside the first pipeline channel; the inlet end of the first liquid cooling tube (500a) is connected to the first liquid inlet tube (21a) via a first liquid inlet joint (510a); and the outlet end of the first liquid cooling tube (500a) is connected to the first liquid return tube (22a) via a first liquid outlet joint (520a); The inlet end of the second liquid cooling tube (500b) and the outlet end of the second liquid cooling tube (500b) are both located outside the second pipeline channel; the inlet end of the second liquid cooling tube (500b) is connected to the second liquid inlet tube (21b) via a second liquid inlet joint (510b); and the outlet end of the second liquid cooling tube (500b) is connected to the second liquid return tube (22b) via a second liquid outlet joint (520b).

8. The charging gun (1) according to claim 7, characterized in that At least one of the first liquid inlet connector (510a), the second liquid inlet connector (510b), the first liquid outlet connector (520a), and the second liquid outlet connector (520b) is a one-inlet-one-outlet connector.

9. The charging gun (1) according to any one of claims 1 to 6, characterized in that: The first groove (360a) includes a first bent section (362a), a first straight groove section (361a) and a second straight groove section (363a), the first straight groove section (361a) and the second straight groove section (363a) both extending along the length direction of the first power terminal (300a), one end of the first straight groove section (361a) passing through the end surface of the first end (350a), the other end of the first straight groove section (361a) communicating with one end of the first bent section (362a), the other end of the first bent section (362a) communicating with one end of the second straight groove section (363a), the other end of the second straight groove section (363a) passing through the end surface of the first end (350a); and / or, The second groove (360b) includes a second bent section (362b), a third straight groove section (361b) and a fourth straight groove section (363b), the third straight groove section (361b) and the fourth straight groove section (363b) both extending along the length direction of the second power terminal (300b), one end of the third straight groove section (361b) passing through the end surface of the second end (350b), the other end of the third straight groove section (361b) communicating with one end of the second bent section (362b), the other end of the second bent section (362b) communicating with one end of the fourth straight groove section (363b), and the other end of the fourth straight groove section (363b) passing through the end surface of the second end (350b).

10. A charging device, characterized in that: Comprising a charging pile (2) and a charging gun (1) according to any one of claims 1 to 9; The charging pile (2) comprises a power supply component (30) and a liquid supply component (40); The first power terminal (300a) of the charging gun (1) and the second power terminal (300b) of the charging gun (1) are both electrically connected to the power supply component (30), the inlet end of the first liquid cooling tube (500a) of the charging gun (1) and the inlet end of the second liquid cooling tube (500b) of the charging gun (1) are both connected to the outlet end of the liquid supply component (40), and the outlet end of the first liquid cooling tube (500a) and the outlet end of the second liquid cooling tube (500b) are both connected to the inlet end of the liquid supply component (40).

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