Charging gun and charging system

Abstract

The utility model discloses a charging gun and a charging system, and relates to the technical field of new energy charging connectors, and the charging gun comprises a housing, a terminal assembly and a cooling pipeline. A mounting cavity is formed in the shell, a plug-in surface is formed on the shell, and a first mounting hole and a second mounting hole which are communicated with the mounting cavity are formed in the plug-in surface; one end of the terminal assembly is arranged in the first mounting hole in a penetrating manner, the other end of the terminal assembly protrudes out of the plugging surface, and a first cooling loop is arranged in the terminal assembly and is used for cooling the terminal assembly; one end of the cooling pipeline penetrates through the second mounting hole, the other end of the cooling pipeline protrudes out of the insertion surface, and a cold liquid flow channel is formed in the cooling pipeline; when the charging gun is matched with the charging socket in an inserting mode, one end of the terminal assembly is inserted into the inserting groove, and one end of the cooling pipeline is inserted into the cooling groove, so that the cold liquid flow channel is communicated with the cooling channel, and the cooling channel is used for cooling energy storage equipment of the electric device. According to the technical scheme of the utility model, the energy storage device and the terminal assembly of the electric device can be cooled at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy charging connector technical field, especially relate to a charging gun and charging system. BACKGROUND

[0002] With the rapid development of new energy vehicles, the charging products as supporting equipment are also constantly innovating to meet market demand. Among them, the charging gun as a component connecting the power supply and the vehicle can directly affect the charging efficiency, safety and user experience.

[0003] The existing charging gun generates a large amount of heat when transmitting electric energy to the vehicle. These heat sources come from the joule heat generated when the current passes through the terminal inside the charging gun, and the heat generated when the vehicle energy storage device stores energy. In order to solve the problem of heat dissipation, the cooling circuit formed in the liquid cooling cable is usually used to cool the charging terminal of the charging gun. However, the charging gun cannot dissipate the heat generated by the vehicle's energy storage device in time during the charging process, which will cause the temperature of the energy storage device to be too high, affecting its performance and service life, and even may cause safety accidents. SUMMARY

[0004] The main purpose of the utility model is to provide a charging gun and charging system, which aims to cool the energy storage device and terminal assembly of the electric device at the same time.

[0005] To achieve the above purpose, the utility model provides a charging gun for plugging with the charging socket of the electric device, the charging socket is equipped with the plug groove, the cooling groove and the cooling channel communicated with the cooling groove, the charging gun includes:

[0006] The shell is provided with the first mounting hole and the second mounting hole communicated with the mounting cavity;

[0007] The terminal assembly is provided with the first cooling circuit for cooling the terminal assembly; and

[0008] The cooling pipeline is provided with the cold liquid flow channel for circulating the cooling liquid;

[0009] When the charging gun is plugged into the charging socket, one end of the terminal assembly is plugged into the plug-in slot, and one end of the cooling pipe is inserted into the cooling groove, so that the cooling liquid flow channel communicates with the cooling channel for cooling the energy storage device of the electric device.

[0010] In an embodiment, the cooling pipe comprises:

[0011] a joint, the joint is arranged in the second mounting hole, and one end of the joint protrudes from the plug-in surface for plugging into the cooling groove; and

[0012] a liquid cooling pipe, the liquid cooling pipe is arranged in the mounting cavity and connected to one end of the joint in the mounting cavity;

[0013] wherein the joint and the inside of the liquid cooling pipe form the cooling liquid flow channel.

[0014] In an embodiment, the joint comprises:

[0015] a male interlocking head, the male interlocking head is arranged in the second mounting hole, and one end of the male interlocking head abuts against the plug-in surface;

[0016] a connecting piece, the connecting piece is connected to one end of the male interlocking head in the mounting cavity, and one end of the connecting piece close to the male interlocking head abuts against the plug-in surface, and the other end of the connecting piece is connected to the liquid cooling pipe; and

[0017] a male interlocking head, the male interlocking head is arranged in the second mounting hole, and one end of the male interlocking head abuts against the plug-in surface;

[0018] In an embodiment, the shell comprises:

[0019] a gun shell, the gun shell is formed with a mounting cavity, and a first opening and a second opening communicating with the mounting cavity;

[0020] a gun head, the gun head is arranged at the first opening, and the gun head is provided with the plug-in surface, the terminal assembly and the cooling pipe are arranged in the gun head; and

[0021] a wire binding assembly, the wire binding assembly is arranged at the second opening for clamping the cooling pipe.

[0022] In an embodiment, the gun head comprises:

[0023] a cover plate, the cover plate is arranged at the first opening, and one side of the cover plate away from the mounting cavity forms the plug-in surface;

[0024] A first plug-in post is arranged on the plug-in surface and has a first through hole corresponding to the first mounting hole, the first through hole is communicated with the first mounting hole, and one end of the terminal assembly protruding from the plug-in surface is arranged in the first through hole.

[0025] A second plug-in post is arranged on the plug-in surface and has a second through hole corresponding to the second mounting hole, the second through hole is communicated with the second mounting hole, and one end of the cooling pipeline protruding from the plug-in surface is arranged in the second through hole.

[0026] In an embodiment, the plug-in surface is provided with four second mounting holes, and each second mounting hole is provided with a cooling pipeline;

[0027] The four second mounting holes are symmetrically arranged on two sides of the plug-in surface, two cooling pipelines on the same side are communicated with the cooling channel to form a second cooling loop, and the two second cooling loops on the two sides are used for cooling the energy storage device.

[0028] In an embodiment, the plug-in surface is further provided with a third mounting hole between the four second mounting holes, and the charging gun further comprises an auxiliary terminal arranged in the third mounting hole and used for plugging with the charging socket.

[0029] In an embodiment, the plug-in surface is further provided with a positioning post arranged at intervals with the second mounting hole, and the charging socket is provided with a positioning hole matched with the positioning post.

[0030] In an embodiment, the terminal assembly comprises:

[0031] A plug-in terminal arranged in the first mounting hole;

[0032] Two liquid cooling cables, one end of each of the two liquid cooling cables is connected with the plug-in terminal; and

[0033] A connecting pipe, two ends of the connecting pipe are respectively communicated with one end of the two liquid cooling cables close to the plug-in terminal.

[0034] The inside of the two liquid cooling cables and the connecting pipe forms the first cooling loop.

[0035] The utility model further provides a charging system, the charging system includes the charging gun above.

[0036] The utility model discloses a technical scheme charging gun through the first mounting hole and the second mounting hole of the plug -in face and be equipped with on the shell, utilize first mounting hole and second mounting hole install terminal assembly and cooling pipeline respectively, through the first cooling circuit in terminal assembly can be used to cool the heat dissipation in terminal assembly itself, reduce the temperature of terminal assembly, simultaneously, when charging gun and charging socket plug -in cooperation charge, utilize the cooling groove of cooling pipeline one end to insert charging socket, make cooling liquid flow channel and the cooling channel of charging socket intercommunication, thereby cooling the energy storage equipment of electric device, prevent energy storage equipment overheating, thereby prolong the service life of energy storage equipment. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, below description in the drawing only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawing according to the structure shown in these drawings.

[0038] Figure 1 The structure schematic diagram of an embodiment of the charging gun provided by the utility model is shown in the figure.

[0039] Figure 2 The structure schematic diagram of an embodiment of the charging gun provided by the utility model is shown in the figure. Figure 1 The blasting photo of the charging gun in the embodiment.

[0040] Figure 3 The structure schematic diagram of an embodiment of the charging gun provided by the utility model is shown in the figure. Figure 1 The partial sectional view of the charging gun in the embodiment.

[0041] Figure 4 The structure schematic diagram of an embodiment of the charging gun provided by the utility model is shown in the figure. Figure 1 The structure schematic diagram of an embodiment of the charging gun provided by the utility model is shown in the figure.

[0042] Figure 5 The structure schematic diagram of an embodiment of the charging gun provided by the utility model is shown in the figure. Figure 1 The structure schematic diagram of the first cooling circuit in the embodiment.

[0043] BRIEF DESCRIPTION OF DRAWINGS

[0044] 100, charging gun; 1, shell; 11, gun shell; 111, mounting cavity; 112, first opening; 113, second opening; 12, gun head; 120, cover plate; 121, plug-in surface; 1211, first mounting hole; 1212, second mounting hole; 1213, third mounting hole; 122, first plug-in column; 1221, first through hole; 123, second plug-in column; 1231, second through hole; 124, third plug-in column; 1241, third through hole; 125, positioning column; 13, bundle assembly; 131, pressing sleeve; 132, wire clamp; 1321, through hole; 133, adjusting piece; 2, terminal assembly; 21, plug-in terminal; 22, liquid cooling cable; 23, connecting pipe; 24, signal terminal; 25, ground terminal; 26, auxiliary terminal; 27, first pressing plate; 28, second pressing plate; 3, cooling pipe; 31, cold liquid flow channel; 32, joint; 321, male interlocking head; 322, connecting piece; 323, male interlocking head; 33, liquid cooling pipe.

[0045] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0047] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0048] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0049] With the rapid development of new energy vehicles, as supporting equipment, charging products are constantly innovating to meet market demand. Among them, the charging gun, as a component connecting the power supply and the vehicle, can directly affect the charging efficiency, safety and user experience.

[0050] The existing charging gun will generate a large amount of heat when transmitting electric energy to the vehicle. These heat sources come from the joule heat generated when the current passes through the terminal inside the charging gun, and the heat generated when the vehicle energy storage device stores energy. In order to solve the heat dissipation problem, the cooling circuit formed in the liquid cooling cable is usually used to cool the charging terminal of the charging gun. However, the charging gun cannot dissipate the heat generated by the energy storage device of the vehicle in time during the charging process, so the temperature of the energy storage device will be too high, which will affect its performance and service life, and even may cause safety accidents.

[0051] The main purpose of the utility model is to provide a charging gun 100 and a charging system, which aims to cool the energy storage device and the terminal assembly 2 of the electric device at the same time.

[0052] Please refer to Figures 1 to 5In the embodiment of the utility model, the charging gun 100 is used for plug-in cooperation with the charging socket of the electric device, the charging socket is provided with a plug-in groove, a cooling groove and a cooling channel communicated with the cooling groove, the charging gun 100 comprises a shell 1, a terminal assembly 2 and a cooling pipeline 3. The shell 1 is provided with an installation cavity 111, the shell 1 is formed with a plug-in surface 121, the plug-in surface 121 is provided with a first installation hole 1211 and a second installation hole 1212 communicated with the installation cavity 111. One end of the terminal assembly 2 is arranged in the first installation hole 1211, the other end of the terminal assembly 2 protrudes from the plug-in surface 121, the terminal assembly 2 is provided with a first cooling loop, and the first cooling loop is used for cooling the terminal assembly 2. One end of the cooling pipeline 3 is arranged in the second installation hole 1212, the other end of the cooling pipeline 3 protrudes from the plug-in surface 121, the cooling pipeline 3 is provided with a cold liquid flow channel 31, and the cold liquid flow channel 31 is used for circulating cooling liquid. When the charging gun 100 is plug-in cooperated with the charging socket, one end of the terminal assembly 2 is plug-in arranged in the plug-in groove, and one end of the cooling pipeline 3 is inserted into the cooling groove, so that the cold liquid flow channel 31 is communicated with the cooling channel, and the energy storage equipment of the electric device is cooled.

[0053] The technical scheme of the utility model, the charging gun 100 is formed with the plug-in surface 121 on the shell 1, and the first installation hole 1211 and the second installation hole 1212 are arranged on the plug-in surface 121, the first installation hole 1211 and the second installation hole 1212 are used for respectively installing the terminal assembly 2 and the cooling pipeline 3, the first cooling loop in the terminal assembly 2 can be used for cooling and radiating the terminal assembly 2 itself, and the temperature of the terminal assembly 2 is reduced. When the charging gun 100 is plug-in cooperated with the charging socket for charging, one end of the cooling pipeline 3 is inserted into the cooling groove of the charging socket, the cold liquid flow channel 31 is communicated with the cooling channel of the charging socket, and the energy storage equipment of the electric device is cooled, the energy storage equipment is prevented from overheating, and the service life of the energy storage equipment is prolonged. Moreover, the terminal assembly 2 and the cooling pipeline 3 are integrated on the plug-in surface 121, the structure of the charging gun 100 is compact, the volume and the weight are reduced, and the charging gun 100 is convenient to use.

[0054] Please refer to Figure 2 And Figure 5 In an embodiment, the terminal assembly 2 comprises plug-in terminals 21, two liquid cooling cables 22 and a connecting pipe 23. The plug-in terminals 21 are arranged in the first installation hole 1211. One end of the two liquid cooling cables 22 is connected with the plug-in terminals 21 respectively. The connecting pipe 23 is communicated with one end of the two liquid cooling cables 22 near the plug-in terminals 21 respectively. The inside of the two liquid cooling cables 22 and the connecting pipe 23 forms the first cooling loop.

[0055] In the embodiment, the plug-in terminal 21 is used to electrically connect with the electric device to deliver electric energy to the electric device, and the two liquid cooling cables 22 are connected with the plug-in terminal 21, which not only delivers electric energy, but also forms the first channel to deliver cooling liquid. The second channel is formed in the connecting pipe 23 to connect the two liquid cooling cables 22 at the end close to the plug-in terminal 21, thereby forming the first cooling loop, in which the cooling liquid can flow to take away the Joule heat generated by the plug-in terminal 21. In this way, the temperature of the plug-in terminal 21 during the charging process can be ensured to be within the normal range, preventing poor contact or damage due to overheating. The connection structure of the liquid cooling cable 22 is common and will not be described here.

[0056] It can be understood that, in addition to the plug-in terminal 21 for delivering electric energy, the terminal assembly 2 also includes a signal terminal 24 and a grounding terminal 25. The signal terminal 24 is used to transmit various control signals and state information during the charging process, such as charging voltage, current information, and communication signals between the charging gun 100 and the charging socket. The grounding terminal 25 can prevent static electricity accumulation and electric leakage, ensuring the safety of the charging process.

[0057] Please refer to Figures 1 to 3 In an embodiment, the cooling pipeline 3 includes a connector 32 and a liquid cooling pipe 33. The connector 32 is arranged in the second mounting hole 1212, and one end of the connector 32 protrudes from the plug-in surface 121 to be plugged with the cooling groove. The liquid cooling pipe 33 is arranged in the mounting cavity 111 and connected with the end of the connector 32 located in the mounting cavity 111. The inside of the connector 32 and the liquid cooling pipe 33 forms the cooling liquid flow channel 31.

[0058] In the embodiment, the cooling pipeline 3 includes a connector 32 and a liquid cooling pipe 33, the connector 32 passes through the second mounting hole 1212 and protrudes from the plug-in surface 121 to be plugged with the cooling groove of the charging socket. It can be understood that, according to the shape of the plug-in groove, different connectors 32 can be replaced to improve the application range of the charging gun 100. The liquid cooling pipe 33 is connected with the connector 32, and the inside of the two forms the cooling liquid flow channel 31, in which the cooling liquid can flow to take away the heat of the energy storage device.

[0059] It can be understood that the cooling pipeline 3 is provided with at least two, of which at least one is used to deliver cooling liquid to the cooling channel, and at least one is used to receive the cooling liquid flowing out of the cooling channel, thereby being able to take away the heat of the energy storage device.

[0060] Please refer to Figures 2 to 4In an embodiment, the connector 32 comprises a male interlocking head 321, a connecting piece 322 and a male interfitting head 323. The male interlocking head 321 is arranged in the second mounting hole 1212, and one end of the male interlocking head 321 abuts against the insertion face 121. The connecting piece 322 is connected to one end of the male interlocking head 321 in the mounting cavity 111, and the other end of the connecting piece 322 abuts against the insertion face 121. The other end of the connecting piece 322 is connected to the liquid cooling pipe 33. One end of the male interfitting head 323 is connected to one end of the male interlocking head 321 protruding from the insertion face 121, and the other end of the male interfitting head 323 is used to be inserted into the cooling groove.

[0061] In the embodiment, the male interlocking head 321 is arranged in the second mounting hole 1212 and protrudes from the insertion face 121 to abut against the insertion face 121, thereby playing a role of fixing and positioning. The connecting piece 322 is connected to the male interlocking head 321 and the liquid cooling pipe 33, and abuts against the other side of the insertion face 121. Thus, through cooperation of the male interlocking head 321 and the connecting piece 322, the connector 32 can be stably mounted at the second mounting hole 1212. The male interfitting head 323 can be tightly connected with the cooling groove of the charging socket to prevent leakage of the cooling liquid. The structure of the male interfitting head 323 is common, and the male interfitting head 323 in the prior art can be directly used to be connected with the cooling groove. Thus, through the interlocking structure, the tightness of the connection of the cooling pipe 3 can be ensured, the leakage of the cooling liquid can be prevented, and the normal heat dissipation of the energy storage device can be ensured.

[0062] Referring to Figure 1 and Figure 2 In an embodiment, the shell 1 comprises a gun shell 11, a gun head 12 and a wire binding assembly 13. The gun shell 11 is formed with a mounting cavity 111, a first opening 112 and a second opening 113 which are in communication with the mounting cavity 111. The gun head 12 is arranged at the first opening 112, and the gun head 12 is provided with an insertion face 121. The terminal assembly 2 and the cooling pipe 3 are arranged in the gun head 12. The wire binding assembly 13 is arranged at the second opening 113 and is used to clamp the cooling pipe 3.

[0063] In the embodiment, the gun shell 11 is internally formed with the mounting cavity 111 for accommodating various assemblies. Meanwhile, the gun head 12 and the wire binding assembly 13 are arranged at the first opening 112 and the second opening 113, respectively. The gun head 12 can be used to mount the terminal assembly 2 and the cooling pipe. The wire binding assembly 13 is used to clamp the cooling pipe 3 to ensure stability of the cooling pipe 3, prevent loosening of the connection of the cooling pipe 3 due to shaking during charging, and affect the cooling effect.

[0064] Optionally, a handle can be further arranged on the outer wall of the gun shell 11 to facilitate use of the user.

[0065] Referring to Figure 2In an embodiment, the first pressing plate 27 is arranged in the mounting cavity 111 to press the terminal assembly 2 against the gun head 12.

[0066] In the embodiment, the first pressing plate 27 presses the terminal assembly 2 against the gun head 12 to ensure that the terminal assembly 2 is tightly attached to the gun head 12, thereby ensuring the stability of the charging gun 100 during charging and avoiding problems such as poor contact caused by loose terminal assembly 2.

[0067] Referring to Figure 2 In an embodiment, the wire assembly 13 includes a pressing sleeve 131, a wire clamp 132, and an adjusting member 133. The pressing sleeve 131 is arranged at the second opening 113. The wire clamp 132 is slidingly arranged in the pressing sleeve 131 and forms an adjustable through hole 1321 with the pressing sleeve 131. The liquid cooling cable 22 and the cooling pipe 3 pass through the through hole 1321 and extend into the mounting cavity 111. The adjusting member 133 connects the pressing sleeve 131 and the wire clamp 132 to adjust the size of the through hole 1321.

[0068] In the embodiment, the wire clamp 132 can slide on the pressing sleeve 131, and the wire clamp 132 and the pressing sleeve 131 form an adjustable through hole 1321. The liquid cooling cable 22 and the cooling pipe 3 pass through the through hole 1321 and extend into the mounting cavity 111. The adjusting member 133 connects the pressing sleeve 131 and the wire clamp 132 to adjust the size of the through hole 1321 according to the size of the cooling pipe 3 and the liquid cooling cable 22, thereby ensuring that the cooling pipe 3 and the liquid cooling cable 22 stably extend into the mounting cavity 111. In addition, the wire clamp 132 and the pressing sleeve 131 have a certain sealing effect, which can prevent dust and other impurities from entering the mounting cavity 111.

[0069] Referring to Figure 1 , Figure 2 and Figure 4 In an embodiment, the gun head 12 includes a cover plate 120, a first plug-in post 122, and a second plug-in post 123. The cover plate 120 is arranged at the first opening 112, and the side of the cover plate 120 away from the mounting cavity 111 forms a plug-in surface 121. The first plug-in post 122 is arranged on the plug-in surface 121 and forms a first through hole 1221 corresponding to the first mounting hole 1211. The first through hole 1221 is in communication with the first mounting hole 1211, and the end of the terminal assembly 2 protruding from the plug-in surface 121 is accommodated in the first through hole 1221. The second plug-in post 123 is arranged on the plug-in surface 121 and forms a second through hole 1231 corresponding to the second mounting hole 1212. The second through hole 1231 is in communication with the second mounting hole 1212, and the end of the cooling pipe 3 protruding from the plug-in surface 121 is accommodated in the second through hole 1231.

[0070] In the embodiment, the first insertion column 122 has a first through hole 1221, the first through hole 1221 is communicated with the first mounting hole 1211, the second through hole 1231 of the second insertion column 123 is communicated with the second mounting hole 1212, and the cooling pipeline 3 passes through the second through hole 1231. When the charging gun 100 is inserted with the charging socket, the first insertion column 122 can assist the electrical connection between the terminal assembly 2 and the charging socket, and the second insertion column 123 can assist the communication between the cooling pipeline 3 and the cooling groove. It can be understood that the first insertion column 122 and the second insertion column 123 are located on the insertion face 121, and are respectively used for fixing and guiding the terminal assembly 2 and the cooling pipeline 3, thereby improving the stability during insertion.

[0071] Referring to Figure 1 and Figure 2 In an embodiment, the insertion face 121 is provided with four second mounting holes 1212, and each second mounting hole 1212 is correspondingly provided with a cooling pipeline 3. Among them, the four second mounting holes 1212 are symmetrically arranged on both sides of the insertion face 121, and the two cooling pipelines 3 on the same side are communicated with the cooling channel to form a second cooling loop, and the two second cooling loops on both sides are used for cooling the energy storage device.

[0072] In the embodiment, the insertion face 121 is provided with four second mounting holes 1212, and each second mounting hole 1212 is correspondingly provided with a cooling pipeline 3 and a second insertion column 123. The four second mounting holes 1212 are symmetrically arranged on both sides of the insertion face 121, so as to ensure the balance of the structure and increase the flow of the cooling liquid, thereby improving the heat dissipation efficiency.

[0073] Referring to Figure 1 , Figure 2 and Figure 4 In an embodiment, the insertion face 121 is further provided with a third mounting hole 1213, the third mounting hole 1213 is located between the four second mounting holes 1212, and the charging gun 100 further includes an auxiliary terminal 26, the auxiliary terminal 26 is arranged in the third mounting hole 1213, and is used for being inserted with the charging socket.

[0074] In the embodiment, the third mounting hole 1213 is located between the four second mounting holes 1212, and the auxiliary terminal 26 is arranged in the third mounting hole 1213. Among them, the auxiliary terminal 26 is used for being electrically connected with the charging socket, so as to transport electric energy to the electric device, thereby improving the charging efficiency.

[0075] Optionally, a third insertion column 124 can also be arranged at the third mounting hole 1213, the third insertion column 124 is formed with a third through hole 1241, the third through hole 1241 communicates with the third mounting hole 1213, so that the auxiliary terminal 26 can be fixed and guided, and the stability of the auxiliary terminal 26 during insertion is ensured. The structure of the third insertion column 124 is similar to that of the first insertion column 122 and the second insertion column 123, and will not be repeated here.

[0076] Optionally, a second pressing plate 28 is further arranged in the mounting cavity 111, the second pressing plate 28 abuts the auxiliary terminal 26 against the gun head 12, ensures that the auxiliary terminal 26 is tightly attached to the gun head 12, ensures the stability of the charging gun 100 during charging, and avoids problems such as poor contact caused by loose terminal assembly 2.

[0077] Please refer to Figure 1 In an embodiment, the insertion surface 121 is further provided with a positioning column 125, the positioning column 125 is arranged in a spaced manner with the second mounting hole 1212, and the charging socket is provided with a positioning hole matched with the positioning column 125.

[0078] In the embodiment, the positioning column 125 is located on the insertion surface 121 of the gun head 12, and the charging socket is provided with a positioning hole matched with the positioning column 125. When the charging gun 100 is inserted into the charging socket, the positioning column 125 is inserted into the positioning hole, so as to ensure the accurate alignment of the charging gun 100 and the charging socket, and at the same time, the connection between the cooling pipe 3 and the cooling groove can be avoided from being deviated, the stable flow of the cooling liquid is ensured, and the heat dissipation performance of the energy storage device is ensured.

[0079] Optionally, the first mounting hole 1211, the third mounting hole 1213 and the positioning column 125 are sequentially and spacedly arranged on the insertion surface 121, and the first mounting hole 1211, the third mounting hole 1213 and the positioning column 125 are all located on the central axis of the insertion surface 121, and the four second mounting holes 1212 are symmetrically arranged on the two sides of the third mounting hole 1213 and the positioning column 125, so as to form a symmetrical structure, so as to improve the appearance and structural strength of the charging gun 100.

[0080] The utility model also proposes a kind of charging system, the charging system includes charging gun 100 and charging pile and the like power supply equipment, the specific structure of the charging gun 100 refers to above-mentioned embodiment, since the present charging system adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here will not be repeated one by one. Among them, charging pile and the like power supply equipment are used to transport electric energy and cooling liquid.

[0081] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A charging gun for plugging into a charging socket of an electric device, the charging socket being provided with a plugging groove, a cooling groove and a cooling channel communicating with the cooling groove, characterized in that, The charging gun comprises: a housing, which is internally provided with a mounting cavity, and is formed with a plug-in surface, the plug-in surface being provided with a first mounting hole and a second mounting hole communicating with the mounting cavity; a terminal assembly, one end of which is arranged in the first mounting hole, the other end of which protrudes from the plug-in surface, and the terminal assembly being internally provided with a first cooling circuit for cooling the terminal assembly; and a cooling pipeline, one end of which is arranged in the second mounting hole, the other end of which protrudes from the plug-in surface, and the cooling pipeline being internally provided with a cold liquid flow channel for circulating cooling liquid; wherein, when the charging gun is plugged into the charging socket, one end of the terminal assembly is plugged into the plug-in groove, and one end of the cooling pipeline is inserted into the cooling groove, so that the cold liquid flow channel and the cooling channel are communicated, for cooling the energy storage device of the electric device.

2. The charging gun of claim 1, wherein, The cooling pipeline comprises: a connector, which is arranged in the second mounting hole, and one end of which protrudes from the plug-in surface for plugging into the cooling groove; and a liquid cooling pipe, which is arranged in the mounting cavity and connected to one end of the connector located in the mounting cavity; wherein, the inside of the connector and the liquid cooling pipe forms the cold liquid flow channel.

3. The charging gun of claim 2, wherein, The connector comprises: a male interlocking head, which is arranged in the second mounting hole, and one end of which abuts against the plug-in surface; a connecting piece, which is connected to one end of the male interlocking head located in the mounting cavity, and one end of the connecting piece close to the male interlocking head abuts against the plug-in surface, the other end of the connecting piece being connected to the liquid cooling pipe; and a male interlocking head, one end of which is connected to one end of the male interlocking head protruding from the plug-in surface, the other end of which is used for plugging into the cooling groove.

4. The charging gun of claim 1, wherein, The housing comprises: a gun shell, which is formed with a mounting cavity, and a first opening and a second opening communicating with the mounting cavity; a gun head, which is arranged at the first opening, and is provided with the plug-in surface, the terminal assembly and the cooling pipeline being arranged in the gun head; and a cable assembly, which is arranged at the second opening, and is used for clamping the cooling pipeline.

5. The charging gun of claim 4, wherein, The gun head comprises: a cover plate, which is arranged at the first opening, and one side of the cover plate away from the mounting cavity forms the plug-in surface; a first plug-in column, which is arranged at the plug-in surface, and is formed with a first through hole corresponding to the first mounting hole, the first through hole being communicated with the first mounting hole, and one end of the terminal assembly protruding from the plug-in surface being accommodated in the first through hole; and a second plug-in column, which is arranged at the plug-in surface, and is formed with a second through hole corresponding to the second mounting hole, the second through hole being communicated with the second mounting hole, and one end of the cooling pipeline protruding from the plug-in surface being accommodated in the second through hole.

6. The charging gun of claim 1, wherein, The plug-in surface is provided with four second mounting holes, and one cooling pipeline is arranged in each second mounting hole; The four second mounting holes are symmetrically arranged on both sides of the plug-in surface, and two cooling pipes on the same side are communicated with the cooling channel to form a second cooling loop, and the two second cooling loops on both sides are used for cooling the energy storage device.

7. The charging gun of claim 6, wherein, The plug-in surface is further provided with a third mounting hole between the four second mounting holes, and the charging gun further comprises an auxiliary terminal which is arranged in the third mounting hole and used for plugging with the charging socket.

8. The charging gun of claim 1, wherein, The plug-in surface is further provided with a positioning column which is arranged in the second mounting hole, and the charging socket is provided with a positioning hole which is plugged with the positioning column.

9. The charging gun according to any one of claims 1 to 8, characterized in that The terminal assembly comprises: a plug-in terminal arranged in the first mounting hole; two liquid cooling cables, one end of each of the two liquid cooling cables being connected with the plug-in terminal; and a connecting pipe, two ends of the connecting pipe being communicated with one end of the two liquid cooling cables close to the plug-in terminal. The interior of the two liquid cooling cables and the connecting pipe forms the first cooling loop.

10. A charging system, characterized by The charging system comprises the charging gun according to any one of claims 1 to 9.

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