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 gun shell, a power terminal and a temperature sensor. The power terminal comprises a first section and a second section, the first section and the second section are arranged in the extending direction of the power terminal, the first section is used for making electrical contact with a vehicle, and the second section is fixedly connected with the gun shell. The temperature sensor is arranged in the power terminal, the temperature sensor comprises a temperature measuring part, the temperature measuring part is located between the end, away from the second section, of the first section and the end, close to the first section, of the second section, and the temperature measuring part is used for detecting the temperature of the position where the temperature measuring part is located. Therefore, the temperature of the power terminal can be accurately monitored, and problems such as overheating of the power terminal and the like can be timely found.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of charging equipment, in particular to a charging gun and a charging equipment. BACKGROUND

[0002] The charging gun is a connecting device for transmitting electric energy from a charging pile to a vehicle. After the charging gun is connected to the vehicle, the charging pile can charge the vehicle through the charging gun. The charging gun includes a power terminal, which is used to electrically contact the vehicle to realize the transmission of electric energy.

[0003] Due to the existence of contact resistance, the power terminal generates a large amount of heat during the operation of the charging gun, so that the temperature of the power terminal is high. How to accurately monitor the temperature of the power terminal and timely discover the overheating problem of the power terminal is a problem to be solved. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application provide a charging gun and a charging equipment, which facilitate accurate monitoring of the temperature of the power terminal and timely discovery of the overheating problem of the power terminal.

[0005] The first aspect of the embodiments of the present application provides a charging gun, which includes a gun shell, a power terminal and a temperature sensor. The power terminal includes a first section and a second section, and the first section and the second section are arranged along the extension direction of the power terminal. The first section is used to electrically contact the vehicle, and the second section is fixedly connected to the gun shell. The temperature sensor is arranged in the power terminal, and the temperature sensor includes a temperature measuring part. The temperature measuring part is located between one end of the first section away from the second section and one end of the second section close to the first section. The temperature measuring part is used to detect the temperature at the position of the temperature measuring part.

[0006] The charging gun provided by the embodiments of the present application has the high-temperature position of the power terminal located in the first section. The temperature measuring part is located between one end of the first section away from the second section and one end of the second section close to the first section, so that the temperature measuring part is close to the high-temperature position of the power terminal during the operation of the power terminal. Therefore, the difference between the temperature detected by the temperature sensor and the actual temperature of the high-temperature position of the power terminal is small, which is beneficial to accurately grasp the working condition of the power terminal and timely discover the overheating problem of the power terminal.

[0007] Illustratively, the temperature measuring part can be located in the first section, or between one end of the first section close to the second section and one end of the second section close to the first section.

[0008] Illustratively, the gun shell includes a gun head seat and a rear cover. The rear cover is connected to the rear end of the gun head seat. The front end of the gun head seat is used to be plugged into the charging socket of the vehicle. The first section is arranged in the gun head seat, and the second section is located in the space surrounded by the gun head seat and the rear cover and is fixed to the gun head seat.

[0009] In some possible implementation manners, the power terminal further comprises a third segment. The first segment and the second segment are located on two sides of the third segment in the extension direction of the power terminal, and two ends of the third segment are connected with the first segment and the second segment respectively. A sealing structure is arranged between the third segment and the gun shell, the power terminal and the gun shell are sealingly connected through the sealing structure, and the temperature measuring part is located on the third segment. In this way, when the temperature measuring part is close to the high-temperature position of the power terminal, the temperature detected by the temperature sensor is less different from the actual temperature of the high-temperature position of the power terminal, and at the same time, the temperature sensor can be arranged without changing the structure of the first segment, and the temperature sensor is not easy to affect the transmission of the current in the first segment, and the temperature sensor is not easy to cause the cross-sectional area of the first segment to be smaller, the heat generation to be larger and other problems.

[0010] In some possible implementation manners, the power terminal has an assembly cavity therein, and the temperature sensor is arranged in the assembly cavity. Part of the assembly cavity is located on the second segment, and the surface of the second segment has a wire slot, and the wire slot is connected with the assembly cavity. The charging gun further comprises a signal line, one end of the signal line is located outside the power terminal, and the other end of the signal line passes through the wire slot, is arranged in the assembly cavity, and is connected with the temperature sensor. In this way, the signal line is routed through the wire slot, the length of the part of the signal line arranged in the power terminal is short, the length of the part of the power terminal for routing the signal line is short, the connection between the power line and the power terminal is not easy to affect the routing of the signal line, and the routing of the signal line is easy and convenient. In addition, the temperature sensor can be moved along the wire slot, the temperature sensor arranged in the assembly cavity is facilitated to be forced, and the temperature sensor is finally arranged in the power terminal. In addition, since the temperature sensor arranged in the assembly cavity is facilitated to be forced, the temperature sensor is facilitated to be moved to the final assembly position by overcoming the frictional resistance between the temperature sensor and the cavity wall of the assembly cavity, and then the gap between the temperature sensor and the cavity wall of the assembly cavity is reduced, and the detection accuracy of the temperature sensor on the temperature of the power terminal is improved.

[0011] In some possible implementation manners, the width of the wire slot is greater than the width of the temperature sensor. In this way, the temperature sensor can be arranged in the assembly cavity through the wire slot, the distance between the position where the temperature sensor is arranged in the assembly cavity and the final assembly position of the temperature sensor is small, the temperature sensor is facilitated to be pushed to the final assembly position along the assembly cavity, and the assembly of the temperature sensor is easy. In addition, the temperature sensor and the signal line can be assembled outside the power terminal, one end of the signal line connected with the temperature sensor is arranged in the assembly cavity together with the temperature sensor through the wire slot, and then the connection between the temperature sensor and the signal line and the threading of the signal line on the power terminal are facilitated.

[0012] In some possible embodiments, the assembly cavity comprises a connecting section and a temperature measuring section. The connecting section and the temperature measuring section are arranged along the extension direction of the power terminal. The connecting section is located at the second section and connected to the wire slot. One end of the temperature sensor is located at the connecting section. The temperature measuring section is located between the first section away from the second section and the second section close to the first section. The temperature measuring section is located at the temperature measuring section. In this way, part of the temperature sensor is located between the wire slot and the first section away from the second section. The temperature sensor is limited by the part of the assembly cavity located between the wire slot and the first section away from the second section, so that the temperature sensor is not easy to be pulled out from the wire slot, and the fixing of the temperature sensor to the power terminal is facilitated. In addition, part of the temperature sensor is located in the connecting section, so that the position of the temperature sensor in the assembly cavity can be observed through the wire slot, and the consistency of the installation position of the temperature sensor in the power terminal is improved. In addition, part of the temperature sensor is located in the connecting section, so that the temperature sensor is continuously pushed along the wire slot during the movement of the temperature sensor from the position of penetrating into the assembly cavity to the final assembly position, and the assembly of the temperature sensor is facilitated.

[0013] In some possible embodiments, the power terminal further comprises a fourth section. The first section and the fourth section are located at two sides of the second section in the extension direction of the power terminal. The fourth section is connected to the second section away from the first section. The charging gun further comprises a power line. The power line is connected to the fourth section. In this way, the part of the power terminal connected to the power line and the part of the power terminal connected to the gun shell are located at different positions in the extension direction of the power terminal. The connection of the power terminal to the power line and the gun shell does not easily affect each other. In addition, the wire slot and the fourth section are located at different positions in the extension direction of the power terminal. The signal line passing through the wire slot does not need to pass through the fourth section for connection to the power line. When the signal line is connected to the fourth section by welding or the like, the signal line is not easily affected by the wire routing, and the signal line is easy to route.

[0014] In some possible embodiments, the second section comprises a connecting part and a protruding part. The connecting part is connected to the fourth section. The protruding part protrudes from the surface of the fourth section. The side surface of the protruding part away from the connecting part has a wire slot. The wire slot penetrates the end surface of the protruding part away from the first section. In this way, the signal line can be arranged at the protruding part away from the first section. The components arranged at the side of the protruding part away from the connecting part do not easily affect the wire routing of the signal line, and the signal line is easy to route.

[0015] In some possible implementation manners, the fourth section comprises a connecting surface, the power line is connected to the connecting surface, the protruding portion protrudes from the connecting surface, an end surface of the protruding portion away from the one end of the first section and the connecting surface form an indentation, and the part of the power line connected to the connecting surface is located in the indentation. In this way, the indentation formed by the end surface of the protruding portion away from the one end of the first section and the connecting surface can be used to accommodate the part of the power line connected to the connecting surface and to provide a space for the signal line to pass through, and the size of the fourth section does not need to be further reduced to additionally reserve a space outside the fourth section for the signal line to pass through.

[0016] In some possible implementation manners, the end surface of the one end of the power terminal has an assembly hole, the end surface of the one end of the power terminal having the assembly hole is located on the side of the second section away from the first section, and a hole wall of the assembly hole forms an assembly cavity. In this way, it is easier to form the assembly cavity for assembling the temperature sensor in the power terminal.

[0017] In some possible implementation manners, the charging gun further comprises an insulating sleeve. The power line and the fourth section are sleeved in the insulating sleeve. The signal line is located outside the insulating sleeve. In this way, the signal line is not constrained by the insulating sleeve, and the signal line is more convenient to pass through.

[0018] A second aspect of the embodiments of the present application provides a charging device, which comprises a charging pile and the charging gun in any of the above embodiments. The charging pile comprises a power supply assembly, and the power supply assembly is electrically connected with the power terminal of the charging gun. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A schematic diagram of a charging device provided by the embodiments of the present application;

[0020] Figure 2 A schematic diagram of a gun head of a charging gun provided by the embodiments of the present application;

[0021] Figure 3 A schematic diagram of a gun head of another charging gun provided by the embodiments of the present application;

[0022] Figure 4 A schematic diagram of a power terminal of a charging gun provided by the embodiments of the present application;

[0023] Figure 5 An exploded view of a gun head of a charging gun provided by the embodiments of the present application;

[0024] Figure 6 A sectional view of a power terminal of a charging gun provided by the embodiments of the present application;

[0025] Figure 7 A sectional view of a power terminal of another charging gun provided by the embodiments of the present application;

[0026] Figure 8 Another schematic view at a power terminal provided by an embodiment of the present application;

[0027] Figure 9 Another schematic view at a power terminal provided by an embodiment of the present application;

[0028] Figure 10 Another exploded view at a gun head of a charging gun provided by an embodiment of the present application;

[0029] Figure 11 Another schematic view at a gun head of a charging gun provided by an embodiment of the present application.

[0030] Explanation of reference signs:

[0031] 1, charging gun; 2, charging pile;

[0032] 10, gun head; 20, cable; 21, power line; 22, signal line; 23, liquid cooling pipe; 30, power supply assembly; 40, liquid supply assembly;

[0033] 100, gun shell; 110, gun head seat;

[0034] 200, power terminal; 200a, first power terminal; 200b, second power terminal; 210, first section; 220, second section; 221, connecting part; 222, protruding part; 230, third section; 231, sealing groove; 240, fourth section; 241, connecting surface; 250, assembly cavity; 250a, assembly hole; 251, connecting section; 252, temperature measuring section; 260, wire slot; 270, notch;

[0035] 300, temperature sensor; 310, temperature measuring part;

[0036] 400, sealing ring;

[0037] 500, insulating sleeve; 500a, first insulating sleeve 500a; 500b, second insulating sleeve 500b;

[0038] 600, wire holder; 610, first holder body; 611, power terminal slot; 611a, first power terminal slot; 611b, second power terminal slot; 620, second holder body;

[0039] x, first direction; y, second direction; z, third direction. DETAILED DESCRIPTION

[0040] The terms used in the embodiment part of the present application are only used for explaining the specific embodiments of the present application, and are not intended to limit the present application, and the embodiment of the embodiments of the present application will be described in detail below with reference to the drawings.

[0041] Figure 1 A schematic diagram of a charging device is provided for embodiments of the present application.

[0042] As shown in Figure 1 , the present application provides a charging device, which can be used to charge a vehicle. The charging device includes a charging pile 2 and a charging gun 1, the charging pile 2 is connected with the charging gun 1, the charging pile 2 can provide electric energy, the charging gun 1 is a connecting device for transmitting electric energy from the charging pile 2 to the vehicle, and the charging pile 2 can charge the vehicle through the charging gun 1 after the charging gun 1 is connected with the vehicle. In some examples, the charging device can be a super charging device, and the charging power of a single charging gun 1 is usually greater than or equal to 480KW.

[0043] The charging gun 1 includes a gun head 10 and a cable 20, and the two ends of the cable 20 are respectively connected with the gun head 10 and the charging pile 2.

[0044] The charging pile 2 includes a power supply assembly 30, which can be connected with a commercial power supply through a charging host, and the charging host can convert the current provided by the commercial power supply into the current required for charging the vehicle.

[0045] Figure 2 A schematic diagram of a charging gun is provided for embodiments of the present application. Wherein, the x direction is the first direction, the y direction is the second direction, and the z direction is the third direction. In some implementations, the first direction can be perpendicular to the second direction, the first direction can be perpendicular to the third direction, and the second direction can be perpendicular to the third direction. In other implementations, the first direction can not be perpendicular to the second direction, the first direction can not be perpendicular to the third direction, and the second direction can not be perpendicular to the third direction. Embodiments of the present application take the first direction perpendicular to the second direction, the first direction perpendicular to the third direction, and the second direction perpendicular to the third direction as an example for illustration.

[0046] As shown in Figure 2 , and referring to Figure 1 , the gun head 10 includes a power terminal 200 and a gun shell 100, the power terminal 200 extends along the first direction, and the power terminal 200 is fixedly connected with the gun shell 100.

[0047] For example, the charging case 100 includes a headstock 110 and a rear cover (not shown), the rear cover being connected to the rear end of the headstock 110 (near the end of the cable of the charging gun). A power terminal 200 passes through and is fixedly connected to the headstock 110, with a portion of the power terminal 200 located within the space enclosed by the headstock 110 and the rear cover. The cable 20 passes through an opening in the rear cover into the space enclosed by the headstock 110 and the rear cover, so that the cable 20 can be connected to components inside the charging case 100. The front end of the headstock 110 is used for insertion into a vehicle, and the power terminal 200 is used for electrical contact with the vehicle. Specifically, the vehicle includes a charging socket, the headstock 110 is used for insertion into the vehicle's charging socket, and after the headstock 110 is inserted into the charging socket, the power terminal 200 makes electrical contact with the terminals of the charging socket.

[0048] For example, the gun head 110 has a socket, and the power terminal 200 passes through the socket.

[0049] One end of the power terminal 200 is connected to the cable 20 for electrical connection to the power supply assembly 30 via the cable 20, and the other end of the power terminal 200 is used for electrical contact with the vehicle, so that the electrical energy provided by the power supply assembly 30 can be transmitted to the vehicle through the cable 20 and the power terminal 200.

[0050] In some examples, the width direction of the power terminal 200 can be a second direction, and the thickness direction of the power terminal 200 can be a third direction. In other examples, the width direction of the power terminal 200 can be a third direction, and the thickness direction of the power terminal 200 can be a second direction. In still other examples, the width direction of the power terminal 200 can be inclined relative to both the second and third directions, and the thickness direction of the power terminal 200 can also be inclined relative to both the second and third directions. This application embodiment uses the example of the power terminal 200 having a width direction as the second direction and a thickness direction as the third direction for illustration.

[0051] like Figure 2 As shown, in some examples, the gun head 10 may also include a wire frame 600, which is fixedly connected to the gun head base 110, and the power terminal 200 is fixedly connected to the wire frame 600, so that the power terminal 200 can be fixedly connected to the gun head base 110 through the wire frame 600.

[0052] For example, the wire frame 600 can be fixedly connected to the gun head base 110 by means of fastener connection, welding or other methods.

[0053] In other examples, the power terminal 200 can also be fixedly connected to the gun head seat 110 by injection molding.

[0054] like Figure 2As shown, in some examples, the gun head 10 can include a plurality of power terminals 200, which are arranged in parallel or substantially in parallel. For example, the plurality of power terminals 200 can include a first power terminal 200a and a second power terminal 200b, which are arranged side by side along the second direction.

[0055] To improve the heat dissipation efficiency of the charging gun 1, the charging device can be a liquid-cooled charging device, and the charging gun 1 can be a liquid-cooled charging gun. As shown in Figure 1 、 Figure 2 As shown, the liquid-cooled assembly is not shown in the figure, Figure 2 The right end of the liquid-cooled pipe 23 is used to connect the liquid-cooled assembly. For example, the charging pile 2 can further include a liquid supply assembly 40, the cable 20 can include the liquid-cooled pipe 23, the gun head 10 can further include a liquid-cooled assembly (not shown), the liquid supply assembly 40 can be connected to the liquid-cooled assembly through the liquid-cooled pipe 23, the liquid supply assembly 40 can supply the cooling liquid to the liquid-cooled assembly through the liquid-cooled pipe 23, the liquid-cooled assembly is fixedly connected to the gun head seat 110 and in contact with the power terminal 200, and the cooling liquid flowing into the liquid-cooled assembly can absorb the heat generated by the power terminal 200 to perform liquid cooling and heat dissipation for the power terminal 200. The cooling liquid can flow back to the liquid supply assembly 40 through the liquid-cooled pipe 23 after absorbing heat in the liquid-cooled assembly.

[0056] The cable 20 includes at least two liquid-cooled pipes 23, at least one of which is an inlet liquid-cooled pipe, and at least one of which is a return liquid-cooled pipe. The outlet of the liquid supply assembly 40 is connected to the inlet of the liquid-cooled assembly through the inlet liquid-cooled pipe, so as to supply the cooling liquid flowing out of the outlet of the liquid supply assembly 40 into the liquid-cooled assembly. The outlet of the liquid-cooled assembly is connected to the inlet of the liquid supply assembly 40 through the return liquid-cooled pipe, so as to flow the cooling liquid back to the liquid supply assembly 40 from the outlet of the liquid-cooled assembly after absorbing heat in the liquid-cooled assembly.

[0057] For example, the liquid-cooled assembly can include one or more liquid-cooled plates.

[0058] In some examples in which the gun head 10 includes a plurality of power terminals 200, the liquid-cooled assembly can include a plurality of liquid-cooled plates corresponding to the power terminals 200, which are arranged in parallel. Each liquid-cooled plate is in contact with a corresponding power terminal 200 to dissipate heat for the corresponding power terminal 200. Each liquid-cooled plate is connected to the outlet of the liquid supply assembly 40 through an inlet liquid-cooled pipe, and each liquid-cooled plate is connected to the inlet of the liquid supply assembly 40 through a return liquid-cooled pipe.

[0059] In this way, the multiple liquid cooling plates arranged in parallel can reduce the temperature cascade of the liquid cooling assembly, so that the temperature at each power terminal 200 is more balanced, which is conducive to reducing the temperature difference of each power terminal 200. In addition, the multiple liquid cooling plates independent of each other can also make the assembly of the liquid cooling assembly more flexible, and can reduce the requirements for the manufacturing precision and assembly precision of each component of the gun head 10, so that the assembly of the gun head 10 is easier.

[0060] In some other examples in which the gun head 10 includes multiple power terminals 200, the multiple power terminals 200 can also be in contact with the same liquid cooling plate, so that the multiple power terminals 200 can be cooled by one liquid cooling plate.

[0061] In some examples in which the power terminal 200 is fixedly connected with the wire holder 600, the liquid cooling assembly can be fixedly connected with the wire holder 600 to be fixedly connected with the gun head seat 110 through the wire holder 600.

[0062] For example, the power terminal 200 can be crimped and fixed on the wire holder 600 by the liquid cooling assembly.

[0063] In some examples in which the power terminal 200 is fixedly connected with the gun head seat 110 by injection molding, the liquid cooling assembly can also be fixedly connected with the gun head seat 110 by injection molding.

[0064] In some other examples in which the charging pile 2 includes the liquid supply assembly 40 and the gun head 10 includes the liquid cooling assembly, the cable 20 can also not include the liquid cooling pipe 23, and the liquid cooling channel can be formed in the cable 20 by a partition plate, so that the liquid cooling pipe 23 can be replaced by the liquid cooling channel. At this time, the liquid supply assembly 40 and the liquid cooling assembly can be connected through the liquid cooling channel, the liquid supply assembly 40 can supply the cooling liquid to the liquid cooling assembly through the liquid cooling channel, and the cooling liquid can flow back to the liquid supply assembly 40 from the liquid cooling assembly through the liquid cooling channel.

[0065] The charging device provided by the embodiments of the present application is not limited to the liquid cooling charging device, and the charging gun provided by the embodiments of the present application is not limited to the liquid cooling charging gun. That is, in some other possible implementations, the charging device can also not be a liquid cooling charging device, and the charging gun 1 can also not be a liquid cooling charging gun. The charging pile 2 can not include the liquid supply assembly 40, the gun head 10 of the charging gun 1 can not include the liquid cooling assembly, and the cable 20 of the charging gun 1 can not include the liquid cooling pipe 23 and the liquid cooling channel.

[0066] The embodiments of the present application take the charging device as a liquid cooling charging device including the liquid cooling pipe 23 for illustration.

[0067] Figure 3 Another schematic view of the gun head of the charging gun provided by the embodiments of the present application.

[0068] AsFigure 3 As shown, the cable 20 includes a power line 21, one end of the power line 21 is electrically connected with the power supply assembly 30, and the other end of the power line 21 is electrically connected with the power terminal 200, so that the power supply assembly 30 is electrically connected with the power terminal 200 through the power line 21, and the electric energy provided by the power supply assembly 30 can be transmitted to the vehicle through the power line 21 and the power terminal 200.

[0069] In some examples, the power line 21 can be fixed and electrically connected with the power terminal 200 by welding.

[0070] In other examples, the power line 21 can also be fixed and electrically connected with the power terminal 200 by compression.

[0071] Exemplarily, the power terminal 200 can be connected with one or more power lines 21, and the power terminal 200 can be electrically connected with the power supply assembly 30 through the one or more power lines 21.

[0072] As shown in Figure 2 , Figure 3 The charging gun 1 further includes an insulating sleeve 500, the power line 21 and the power terminal 200 are sleeved in the insulating sleeve 500, and the end of the power line 21 connected with the power terminal 200 and the end of the power terminal 200 connected with the power line 21 are covered by the insulating sleeve 500, which can play an insulating protection role on the connection between the power line 21 and the power terminal 200.

[0073] Exemplarily, the material of the insulating sleeve 500 can be plastic.

[0074] Exemplarily, the insulating sleeve 500 is used to press the power line 21 on the power terminal 200, so that the fixing of the insulating sleeve 500 and the power terminal 200 is more stable.

[0075] Exemplarily, the insulating sleeve 500 is a heat-shrinkable sleeve, so that the insulating sleeve 500 can provide insulation protection, and the compression of the insulating sleeve 500 on the power line 21 and the power terminal 200 is more stable and the wrapping is more convenient.

[0076] In some examples in which the gun head 10 includes multiple power terminals 200, the gun head 10 includes multiple insulating sleeves 500 corresponding to the power terminals 200, the power terminals 200 and the power lines 21 connected thereto are sleeved in the corresponding insulating sleeves 500, and the end of the power line 21 connected with the power terminal 200 and the end of the power terminal 200 connected with the power line 21 are covered by the corresponding insulating sleeve 500.

[0077] For example, in some examples in which the gun head 10 includes the first power terminal 200a and the second power terminal 200b, the plurality of insulation sleeves 500 includes a first insulation sleeve 500a and a second insulation sleeve 500b. The first power terminal 200a and the power line 21 connected to the first power terminal 200a are sleeved in the first insulation sleeve 500a, and the end of the power line 21 connected to the first power terminal 200a and the end of the first power terminal 200a connected to the power line 21 are covered by the first insulation sleeve 500a. The second power terminal 200b and the power line 21 connected to the second power terminal 200b are sleeved in the second insulation sleeve 500b, and the end of the power line 21 connected to the second power terminal 200b and the end of the second power terminal 200b connected to the power line 21 are covered by the second insulation sleeve 500b.

[0078] In some examples, the liquid cooling pipe 23 is located outside the insulation sleeve 500, and the liquid cooling pipe 23 is not constrained by the insulation sleeve 500, so that the connection of the liquid cooling pipe 23 with the liquid cooling assembly and the wiring of the liquid cooling pipe 23 are more convenient.

[0079] Figure 4 A schematic view of a power terminal of a charging gun is provided in some embodiments of the present application.

[0080] As Figure 4 shown, and referring to Figure 3 , the power terminal 200 includes a first section 210 and a second section 220, the first section 210 and the second section 220 are arranged along the extension direction of the power terminal 200, the first section 210 is used for electrical contact with the vehicle, and the second section 220 is fixedly connected with the gun shell 100.

[0081] For example, the first section 210 is sleeved in the insertion hole of the gun head seat 110. The second section 220 is located in the space surrounded by the gun head seat 110 and the rear cover, and is fixedly connected with the gun head seat 110.

[0082] In examples in which the power terminal 200 is fixedly connected with the wire holder 600 and is fixedly connected with the gun head seat 110 through the wire holder 600, the second section 220 is fixedly connected with the wire holder 600. For example, the liquid cooling assembly can be crimped and fixed on the wire holder 600, and the second section 220 is in contact with the liquid cooling assembly for heat exchange.

[0083] In examples in which the power terminal 200 is fixedly connected with the gun head seat 110 by injection molding, the second section 220 is combined with the gun head seat 110.

[0084] As Figure 4As shown, the power terminal 200 further includes a third section 230, the first section 210 and the second section 220 are located on two sides of the third section 230 in the extension direction of the power terminal 200, the two ends of the third section 230 are connected with the first section 210 and the second section 220 respectively, and a sealing structure is arranged between the third section 230 and the gun barrel 100. The power terminal 200 and the gun barrel 100 are sealingly connected through the sealing structure, so as to realize the sealing connection between the power terminal 200 and the gun barrel 100, and facilitate the sealing of the chamber in which the second section 220 is located. Specifically, a sealing structure is arranged between the third section 230 and the gun head seat 110, and the power terminal 200 and the gun head seat 110 are sealingly connected through the sealing structure. The chamber surrounded by the gun head seat 110 and the rear cover is a sealed chamber.

[0085] As shown in Figure 3 , Figure 4 As shown, the power terminal 200 further includes a fourth section 240, the first section 210 and the fourth section 240 are located on two sides of the second section 220 in the extension direction of the power terminal 200, and the fourth section 240 is connected with one end of the second section 220 away from the first section 210. The power line 21 is connected to the fourth section 240, so that the part of the power terminal 200 connected with the power line 21 and the part of the power terminal 200 connected with the gun barrel 100 are located at different positions in the extension direction of the power terminal 200, and the connection of the power terminal 200 with the power line 21 and the gun barrel 100 is not easily affected by each other.

[0086] In the extension direction of the power terminal 200, the second section 220 is located between the fourth section 240 and the third section 230, and the two ends of the second section 220 are connected with the fourth section 240 and the third section 230 respectively.

[0087] The fourth section 240 includes a connecting surface 241, and the power line 21 is connected to the connecting surface 241.

[0088] In some examples in which the gun head 10 includes a liquid cooling assembly, the connecting surface 241 is located on the side of the power terminal 200 away from the liquid cooling assembly, so that the connection of the power line 21 with the power terminal 200 and the connection of the liquid cooling pipe 23 with the liquid cooling assembly are not easily affected by each other.

[0089] For example, the power line 21 can be fixed and electrically connected with the connecting surface 241 by welding, pressing, or the like.

[0090] For example, the fourth section 240 is sleeved in the insulating sleeve 500, and the first section 210, the second section 220 and the third section 230 can be penetrated out of the insulating sleeve 500 and located outside the insulating sleeve 500.

[0091] Figure 5 An exploded view of the gun head of the charging gun provided by the embodiment of the present application.

[0092] As shown in FIG. 1 and referring to FIG. 2, in some examples, the power terminal 200 is fixedly connected with the wire holder 600. The power terminal 200 can be fixedly connected with the wire holder 600 in various manners. For example, the power terminal 200 can be fixedly connected with the wire holder 600 by means of a power terminal groove 611 of the wire holder 600. Figure 5 Figure 3 As shown in FIG. 2, in some examples in which the power terminal 200 is fixedly connected with the wire holder 600, the wire holder 600 has the power terminal groove 611, the power terminal 200 is arranged in the power terminal groove 611, and a groove wall of the power terminal groove 611 can limit the movement of the power terminal 200, so as to facilitate the stable assembly of the power terminal 200 and the wire holder 600.

[0093] At least part of the second section 220 is arranged in the power terminal groove 611, and the first section 210 and the third section 230 are arranged out of the power terminal groove 611.

[0094] In some examples, at least part of the fourth section 240 can be arranged in the power terminal groove 611.

[0095] When the gun head 10 includes a plurality of power terminals 200, the wire holder 600 has a plurality of power terminal grooves 611 corresponding to the power terminals 200, and the power terminals 200 are arranged in the corresponding power terminal grooves 611. For example, the wire holder 600 can have a first power terminal groove 611a corresponding to the first power terminal 200a and a second power terminal groove 611b corresponding to the second power terminal 200b, the first power terminal 200a is arranged in the first power terminal groove 611a, the second power terminal 200b is arranged in the second power terminal groove 611b, and the first power terminal groove 611a and the second power terminal groove 611b can be arranged side by side along the second direction, so that the first power terminal 200a and the second power terminal 200b are arranged side by side along the second direction.

[0096] In some examples in which the gun head 10 includes a liquid cooling assembly, the liquid cooling assembly can be arranged on a side of the power terminal 200 away from the groove bottom of the power terminal groove 611, and the liquid cooling assembly can press and fix the power terminal 200 on the groove bottom of the power terminal groove 611. For example, the liquid cooling assembly can be arranged on a side of the second section 220 away from the groove bottom of the power terminal groove 611, and the liquid cooling assembly can be press-fitted on a surface of the side of the second section 220 away from the groove bottom of the power terminal groove 611 and press-fix the second section 220 on the groove bottom of the power terminal groove 611.

[0097] The groove wall of the power terminal groove 611 cooperates with the liquid cooling assembly to fix the power terminal 200 with the wire holder 600.

[0098] ​In some possible embodiments, the wire rack 600 can include a first rack body 610 and a second rack body 620. The second rack body 620 is detachably arranged on one side of the first rack body 610 in a third direction, and the first rack body 610 has a power terminal groove 611 on the side facing the second rack body 620 in the third direction. The power terminal 200 is fixedly connected to the first rack body 610, for example, a liquid cooling assembly is fixedly connected to the first rack body 610, the liquid cooling assembly is crimped and fixed on the first rack body 610, and the power terminal 200 is located between the second rack body 620 and the first rack body 610.

[0099] In this way, when assembling the power terminal 200, the second rack body 620 can be detached from the first rack body 610 to avoid blocking the assembly of the power terminal 200. After the power terminal 200 is assembled on the first rack body 610, the second rack body 620 is assembled on the first rack body 610, so that the power terminal 200 is more convenient to assemble on the wire rack 600.

[0100] In some examples, the first rack body 610 and the second rack body 620 can be clamped.

[0101] In other examples, the first rack body 610 and the second rack body 620 can be connected by threaded fasteners.

[0102] For example, the second rack body 620 can be used to fix one or more of a signal terminal, a ground terminal, and the like.

[0103] In other possible embodiments, the wire rack 600 can also be a one-piece structure.

[0104] Figure 6 A cross-sectional view of a power terminal of a charging gun is provided in an embodiment of the present application.

[0105] As shown in Figure 6 In some possible embodiments, a sealing ring 400 is sleeved on the outer wall of the third section 230, the inner periphery of the sealing ring 400 abuts against the outer wall of the third section 230, and the outer periphery of the sealing ring 400 abuts against the gun head seat 110. The sealing ring 400 forms a sealing structure by abutting against the third section 230 and the gun head seat 110, so as to realize the sealing cooperation between the power terminal 200 and the gun head seat 110.

[0106] For example, the outer wall of the third section 230 has a sealing groove 231 surrounding the third section 230 in the circumferential direction, the sealing ring 400 is arranged in the sealing groove 231, and the sealing ring 400 abuts against the groove wall of the sealing groove 231, so that the sealing surface between the sealing ring 400 and the third section 230 is larger. In addition, the sealing groove 231 can also limit the movement of the sealing ring 400, so that the stability of the sealing between the power terminal 200 and the gun head seat 110 is better.

[0107] In other possible implementations, the third segment 230 may also form a sealing structure by other means, such as by combining with the nozzle seat 110.

[0108] like Figure 6 As shown in the embodiment of this application, the charging gun 1 further includes a temperature sensor 300, which is disposed in the power terminal 200. The temperature sensor 300 includes a temperature measuring part 310, which is used to detect the temperature at the location of the temperature measuring part 310.

[0109] This facilitates the monitoring of the temperature of the power terminal 200, thereby making it easier to detect problems such as overheating of the power terminal 200 in a timely manner.

[0110] In this embodiment, the temperature measuring unit 310 is located between the end of the first segment 210 away from the second segment 220 and the end of the second segment 220 close to the first segment 210.

[0111] Because the power terminal 200 makes electrical contact with the vehicle through the first segment 210, and there is contact resistance between the first segment 210 and the vehicle, the power terminal 200 generates a significant amount of heat and reaches a high temperature at the first segment 210 during operation. Furthermore, since the first segment 210 is required for electrical contact with the vehicle, it is difficult for it to make contact with the liquid cooling components. The first segment 210 needs to transfer heat to the liquid cooling components through the second segment 220 and other parts that contact the liquid cooling components. Specifically, the heat on the first segment 210 needs to be transferred to the liquid cooling components through the third segment 230 and the second segment 220. The efficiency of heat dissipation through the liquid cooling components to the first segment 210 is low, resulting in a high temperature for the first segment 210. The temperature difference between the parts of the second segment 220 and the first segment 210 is large, and the high-temperature location of the power terminal 200 during operation is often located in the first segment 210.

[0112] Compared to the solution of placing the temperature measuring unit 310 on the second segment 220 or on the side of the second segment 220 away from the first segment 210, placing the temperature measuring unit 310 between the end of the first segment 210 away from the second segment 220 and the end of the second segment 220 close to the first segment 210 allows the temperature measuring unit 310 to be close to the high-temperature position of the power terminal 200 during operation. This results in a smaller difference between the temperature detected by the temperature sensor 300 and the actual temperature of the high-temperature position of the power terminal 200, which is beneficial for accurately grasping the operating status of the power terminal 200 and for timely detection of problems such as overheating of the power terminal 200.

[0113] For example, the temperature measuring unit 310 may be located at the end of the temperature sensor 300.

[0114] The temperature sensor 300 is arranged in the assembly cavity 250. At least part of the assembly cavity 250 is located between the end of the first section 210 away from the second section 220 and the end of the second section 220 close to the first section 210.

[0115] The temperature sensor 300 is arranged in the assembly cavity 250. At least part of the assembly cavity 250 is located between the end of the first section 210 away from the second section 220 and the end of the second section 220 close to the first section 210.

[0116] The temperature sensor 300 is arranged in the assembly cavity 250. At least part of the assembly cavity 250 is located between the end of the first section 210 away from the second section 220 and the end of the second section 220 close to the first section 210.

[0117] In some possible embodiments, the temperature measuring part 310 can be located in the first section 210, and at least part of the assembly cavity 250 is located in the first section 210.

[0118] As shown in FIG. 1, in some possible embodiments, the temperature measuring part 310 can be located in the first section 210, and at least part of the assembly cavity 250 is located in the first section 210. Figure 6 As shown in FIG. 1, in some possible embodiments, the temperature measuring part 310 can be located in the first section 210, and at least part of the assembly cavity 250 is located in the first section 210.

[0119] In this way, when the temperature measuring part 310 is close to the high-temperature position of the power terminal 200, the temperature sensor 300 can detect a temperature close to the actual temperature of the high-temperature position of the power terminal 200, and the temperature sensor 300 can be arranged without changing the structure of the first section 210, and the temperature sensor 300 can be arranged without affecting the transmission of the current in the first section 210, and the temperature sensor 300 can be arranged without causing the cross-sectional area of the first section 210 to decrease and the heat generated by the first section 210 to increase.

[0120] The cross-sectional area of the first section 210 is usually small, and the heat generated by the first section 210 is large. When the cross-sectional area of the first section 210 decreases, the power terminal 200 is prone to overheating.

[0121] The cross-sectional area of the third section 230 is usually large, and the heat generated by the third section 230 is smaller than the heat generated by the first section 210. When the temperature sensor 300 is arranged in the third section 230, the cross-sectional area of the third section 230 is not prone to decrease, and the power terminal 200 is not prone to overheat.

[0122] In the example that the temperature sensor 300 is arranged at one end of the assembly cavity 250, the end wall of the assembly cavity 250, which is arranged at one end of the temperature sensor 300, is located at the third section 230.

[0123] In some possible implementation manners, the assembly cavity 250 is partially located at the second section 220, and the surface of the second section 220 is provided with a wire slot 260, which is in communication with the assembly cavity 250. The charging gun 1 further comprises a signal line 22, one end of the signal line 22 is located outside the power terminal 200, and the other end of the signal line 22 passes through the wire slot 260 and is arranged in the assembly cavity 250 and connected with the temperature sensor 300.

[0124] In this way, the signal line 22 is routed through the wire slot 260, so that the length of the portion of the signal line 22 arranged in the power terminal 200 is relatively short, the length of the portion of the power terminal 200 used for routing the signal line 22 is relatively short, the connection between the power line 21 and the power terminal 200 is less likely to affect the routing of the signal line 22, and the signal line 22 is easier to route. In addition, the temperature sensor 300 can be pushed along the wire slot 260 to move, so that it is convenient to apply force to the temperature sensor 300 arranged in the assembly cavity 250, and it is relatively easy to assemble the temperature sensor 300 to the final assembly position in the power terminal 200. In addition, since it is convenient to apply force to the temperature sensor 300 arranged in the assembly cavity 250, it is relatively easy to overcome the frictional resistance between the temperature sensor 300 and the cavity wall of the assembly cavity 250 to move the temperature sensor 300 to the final assembly position, thereby facilitating the reduction of the gap between the temperature sensor 300 and the cavity wall of the assembly cavity 250 and the improvement of the detection accuracy of the temperature of the power terminal 200 by the temperature sensor 300.

[0125] When the power line 21 is connected to the fourth section 240, the wire slot 260 and the fourth section 240 are located at different positions of the power terminal 200 in the extension direction, respectively, and the signal line 22 passing through the wire slot 260 does not need to pass through the fourth section 240 used for connecting with the power line 21, so that the signal line 22 is less likely to be affected when being connected to the fourth section 240 by welding or the like, and the signal line 22 is easier to route.

[0126] The width of the wire slot 260 is greater than the wire width of the signal line 22, so as to facilitate the routing of the signal line 22 through the wire slot 260.

[0127] The end of the signal line 22 located outside the power terminal 200 is connected with a control device (not shown), so that the temperature sensor 300 can perform signal interaction with the control device.

[0128] For example, the extension direction of the wire slot 260 and the extension direction of the assembly cavity 250 are both the same as the extension direction of the power terminal 200.

[0129] In some possible embodiments, the width of the wire slot 260 is greater than the width of the temperature sensor 300.

[0130] In this way, the temperature sensor 300 can be inserted into the assembly cavity 250 through the wire slot 260, and the distance between the position where the temperature sensor 300 is inserted into the assembly cavity 250 and the final assembly position of the temperature sensor 300 is small, which facilitates the pushing of the temperature sensor 300 along the assembly cavity 250 to the final assembly position, and makes the assembly of the temperature sensor 300 easier. In addition, the temperature sensor 300 and the signal line 22 can be assembled outside the power terminal 200, and then the end of the signal line 22 connected to the temperature sensor 300 is inserted into the assembly cavity 250 through the wire slot 260 together with the temperature sensor 300, which makes the connection of the temperature sensor 300 and the signal line 22 and the threading of the signal line 22 on the power terminal 200 more convenient.

[0131] For example, the cable 20 can include the signal line 22, the charging pile 2 can include a control device, and the temperature sensor 300 can be connected to the control device of the charging pile 2 through the signal line 22, so that the temperature sensor 300 can interact with the control device of the charging pile 2 through the signal line 22.

[0132] Figure 7 Another cross-sectional view of the power terminal of the charging gun provided by the embodiments of the present application.

[0133] As Figure 7 shown, and referring to Figure 6 In some possible embodiments, the assembly cavity 250 includes a connecting section 251 and a temperature measurement section 252. The connecting section 251 and the temperature measurement section 252 are arranged along the extension direction of the power terminal 200, the connecting section 251 is located at the second section 220 and connected to the wire slot 260, one end of the temperature sensor 300 is located at the connecting section 251, the temperature measurement section 252 is located between the end of the second section 220 away from the first section 210 and the end of the second section 220 close to the first section 210, and the temperature measurement part 310 is located at the temperature measurement section 252.

[0134] In this way, the part of the temperature sensor 300 between the wiring groove 260 and the end of the first section 210 away from the second section 220 is positioned by the assembly cavity 250 between the wiring groove 260 and the end of the first section 210 away from the second section 220, so that the temperature sensor 300 is less likely to come off the wiring groove 260, facilitating the fixing of the temperature sensor 300 to the power terminal 200. In addition, the part of the temperature sensor 300 in the connecting section 251 facilitates the observation of the position of the temperature sensor 300 in the assembly cavity 250 through the wiring groove 260, which is conducive to improving the consistency of the installation position of the temperature sensor 300 in the power terminal 200. In addition, the part of the temperature sensor 300 in the connecting section 251 facilitates the continuous pushing of the temperature sensor 300 along the wiring groove 260 during the movement of the temperature sensor 300 from the position of being inserted into the assembly cavity 250 to the final assembly position, which is conducive to the assembly of the temperature sensor 300.

[0135] When the temperature measuring part 310 is located in the third section 230, the temperature measuring section 252 is located in the third section 230.

[0136] For example, the length of the part of the temperature sensor 300 between the wiring groove 260 and the end of the first section 210 away from the second section 220 is greater than the length of the part of the temperature sensor 300 in the connecting section 251, so as to facilitate the stable assembly of the temperature sensor 300 to the power terminal 200.

[0137] Figure 8 Another schematic view of a power terminal provided by an embodiment of the present application is provided, Figure 9 Another schematic view of a power terminal provided by an embodiment of the present application is provided.

[0138] As Figure 8 , Figure 9 As shown in FIG. 4 and referring to FIG. 3, Figure 7 In some possible embodiments, the end face of the end of the fourth section 240 away from the second section 220 has an assembly hole 250a. That is, the end face of the end of the power terminal 200 has an assembly hole 250a, and the end face of the end of the power terminal 200 having the assembly hole 250a is located on the side of the second section 220 away from the first section 210. The hole wall of the assembly hole 250a surrounds to form the assembly cavity 250.

[0139] In this way, it is easier to form the assembly cavity 250 for assembling the temperature sensor 300 in the power terminal 200.

[0140] The assembly hole 250a is a blind hole, and the bottom of the assembly hole 250a is located between the end of the first segment 210 away from the second segment 220 and the end of the second segment 220 near the first segment 210. One end of the assembly cavity 250 extends through the end face of the fourth segment 240 away from the second segment 220 along the extension direction of the power terminal 200, and the other end of the assembly cavity 250 is a sealing structure located between the end of the first segment 210 away from the second segment 220 and the end of the second segment 220 near the first segment 210.

[0141] When the temperature measuring section 310 is located in the third section 230, the bottom of the assembly hole 250a can be located in the third section 230.

[0142] In some possible implementations, the mounting hole 250a is a circular hole coaxial with the first segment 210.

[0143] In this way, when the mounting hole 250a is made on the power terminal 200, the first segment 210 is less likely to be deflected due to the force of the eccentric position, and it is easier to make the mounting hole 250a.

[0144] For example, the first segment 210 is a cylindrical structure.

[0145] In some other possible implementations, both ends of the assembly cavity 250 in the extension direction of the power terminal 200 can be sealed structures.

[0146] like Figure 8 , Figure 9 As shown, in some possible embodiments, the second segment 220 includes a connecting portion 221 and a protrusion 222. The connecting portion 221 is connected to the fourth segment 240, and the protrusion 222 protrudes from the surface of the fourth segment 240. The side surface of the protrusion 222 away from the connecting portion 221 has a wiring groove 260, which penetrates the end face of the protrusion 222 away from the first segment 210.

[0147] In this way, the signal line 22 can be threaded through the end of the protrusion 222 away from the first segment 210. The component located on the side of the protrusion 222 away from the connecting part 221 is less likely to affect the routing of the signal line 22, making the routing of the signal line 22 easier.

[0148] In some possible implementations, the protrusion 222 protrudes from the connecting surface 241, and the end face of the protrusion 222 away from the first segment 210 and the connecting surface 241 form a notch 270, and the portion of the power line 21 connected to the connecting surface 241 is located within the notch 270.

[0149] In this way, the end face of the protruding portion 222 away from the end of the first section 210 and the notch 270 formed by the connecting face 241 can be used to accommodate the part of the power line 21 connected to the connecting face 241 and to accommodate the signal line 22, and the size of the fourth section 240 does not need to be further reduced to reserve space outside the fourth section 240 for the signal line 22.

[0150] Figure 10 An exploded view of the head of the charging gun according to another embodiment of the present application.

[0151] As shown in Figure 10 In some examples in which the head 10 includes a liquid cooling assembly, the wiring groove 260 is located on the side surface of the second section 220 away from the liquid cooling assembly, and the side surface of the second section 220 with the wiring groove 260 is crimped and fixed on the rack 600 by the liquid cooling assembly.

[0152] In this way, the liquid cooling assembly and the signal line 22 are less likely to affect each other, and the assembly of the liquid cooling assembly, the signal line 22 and the power terminal 200 is more convenient. In addition, it is convenient to maintain a large heat exchange area between the liquid cooling assembly and the second section 220. In addition, the rack 600 can function to constrain the wiring of the signal line 22, which is conducive to limiting the wiring of the signal line 22 at the power terminal 200.

[0153] In some examples in which the power terminal 200 is arranged in the power terminal groove 611 of the rack 600, the wiring groove 260 is located on the side surface of the second section 220 facing the groove bottom of the power terminal groove 611.

[0154] In examples in which the second section 220 includes the protruding portion 222 and the connecting portion 221, the liquid cooling assembly is located on the side of the connecting portion 221 away from the protruding portion 222, and the side surface of the protruding portion 222 away from the connecting portion 221 faces and abuts against the groove bottom of the power terminal groove 611.

[0155] In other possible embodiments, the wiring groove 260 can also be located on the side surface of the second section 220 facing the liquid cooling assembly, or on the side surface of the second section 220 in the width direction of the power terminal 200.

[0156] Figure 11 A schematic view of the head of the charging gun according to another embodiment of the present application.

[0157] In some possible embodiments, the signal line 22 is located outside the insulating sleeve 500.

[0158] In this way, the signal line 22 is not constrained by the insulating sleeve 500, and the wiring of the signal line 22 is more convenient.

[0159] In the description of the embodiments of the present application, unless specifically defined and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, can be fixed connection, can also be indirectly connected through the intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0160] The terms "first", "second", "third", "fourth" and the like (if any) in the description of the embodiments of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence.

[0161] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and not to limit them; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A charging gun (1), characterized in that, The application relates to a charging gun (1) which comprises: a gun shell (100); a power terminal (200) which comprises a first section (210) and a second section (220), the first section (210) and the second section (220) are arranged along the extension direction of the power terminal (200), the first section (210) is used for electrically contacting a vehicle, and the second section (220) is fixedly connected with the gun shell (100); a temperature sensor (300) which is arranged in the power terminal (200), the temperature sensor (300) comprises a temperature measuring part (310), the temperature measuring part (310) is located between one end of the first section (210) which is away from the second section (220) and one end of the second section (220) which is close to the first section (210), and the temperature measuring part (310) is used for detecting the temperature at the position of the temperature measuring part (310).

2. The charging gun (1) according to claim 1, characterized in that The power terminal (200) further comprises a third section (230); the first section (210) and the second section (220) are respectively located on both sides of the third section (230) in the extension direction of the power terminal (200), both ends of the third section (230) are connected with the first section (210) and the second section (220) respectively, a sealing structure is arranged between the third section (230) and the gun shell (100), the power terminal (200) and the gun shell (100) are sealingly matched through the sealing structure, and the temperature measuring part (310) is located in the third section (230).

3. The charging gun (1) according to claim 1 or 2, characterized in that The power terminal (200) has an assembly cavity (250) therein, and the temperature sensor (300) is arranged in the assembly cavity (250); part of the assembly cavity (250) is located in the second section (220); a surface of the second section (220) has a wiring groove (260), and the wiring groove (260) is communicated with the assembly cavity (250); the charging gun (1) further comprises a signal line (22); one end of the signal line (22) is located outside the power terminal (200), the other end of the signal line (22) is arranged in the assembly cavity (250) through the wiring groove (260) and is connected with the temperature sensor (300).

4. The charging gun (1) according to claim 3, characterized in that The width of the wiring groove (260) is greater than the width of the temperature sensor (300).

5. The charging gun (1) according to claim 3, characterized in that The assembly cavity (250) comprises a connecting section (251) and a temperature measuring section (252); the connecting section (251) and the temperature measuring section (252) are arranged along the extension direction of the power terminal (200), the connecting section (251) is located in the second section (220) and is connected with the wiring groove (260), one end of the temperature sensor (300) is located in the connecting section (251), the temperature measuring section (252) is located between one end of the first section (210) which is away from the second section (220) and one end of the second section (220) which is close to the first section (210), and the temperature measuring part (310) is located in the temperature measuring section (252).

6. The charging gun (1) according to claim 3, characterized in that The power terminal (200) further comprises a fourth section (240), the first section (210) and the fourth section (240) are located on two sides of the second section (220) in the extension direction of the power terminal (200) respectively, and the fourth section (240) is connected to one end of the second section (220) away from the first section (210); The charging gun further comprises a power line (21), and the power line (21) is connected to the fourth section (240).

7. The charging gun (1) according to claim 6, characterized in that The second section (220) comprises a connecting part (221) and a protruding part (222), the connecting part (221) is connected to the fourth section (240), and the protruding part (222) protrudes from the surface of the fourth section (240). The protruding part (222) has the wire groove (260) on the side surface away from the connecting part (221), and the wire groove (260) penetrates through the end surface of the protruding part (222) away from the first section (210).

8. The charging gun (1) according to claim 7, characterized in that The fourth section (240) comprises a connecting surface (241), the power line (21) is connected to the connecting surface (241), the protruding part (222) protrudes from the connecting surface (241), the end surface of the protruding part (222) away from the first section (210) and the connecting surface (241) form a gap (270), and the part of the power line (21) connected to the connecting surface (241) is located in the gap (270).

9. The charging gun (1) according to claim 3, characterized in that The end surface of one end of the power terminal (200) has an assembly hole (250a), the end surface of the end of the power terminal (200) having the assembly hole (250a) is located on the side of the second section (220) away from the first section (210), and the hole wall of the assembly hole (250a) forms the assembly cavity (250).

10. A charging device, characterized by The charging gun (1) comprises a charging pile (2) and the charging gun (1) according to any one of claims 1-9. The charging pile (2) comprises a power supply assembly (30), and the power supply assembly (30) is electrically connected to the power terminal (200) of the charging gun (1).

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