Charging gun and charging device

Abstract

The application relates to the technical field of charging, in particular to a charging gun and a charging device. The charging gun comprises a cable, a charging gun body, a sealing assembly and a heat dissipation assembly. The cable comprises a wire core, the wire core comprises a first pipe body extending in a first direction and bare wires, the first pipe body is provided with a plurality of first heat dissipation channels penetrating through the first pipe body in the first direction, and at least one first heat dissipation channel contains the bare wires. The charging gun body is connected with the cable, the charging gun body is provided with an air inlet channel, the air inlet channel is in communication with the first heat dissipation channels and the outside, the sealing assembly is connected with one end of the cable away from the charging gun body, the sealing assembly is provided with an air outlet channel, the air outlet channel is in communication with the first heat dissipation channels and the outside, and the heat dissipation assembly is arranged on the sealing assembly and used for driving gas to flow through the air inlet channel, the first heat dissipation channels in the cable and the air outlet channel in sequence. The bare wires can be cooled, and the risk of damage of the cable due to overheating is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging, in particular to a charging gun and a charging device. BACKGROUND

[0002] The charging gun is used for connecting a charging pile and a device to be charged to supply power for the device to be charged. In order to speed up the charging speed, the charging power and the charging current of the charging gun are increased, which causes the cable in the charging gun to heat up, so that the cable is easily damaged due to overheating, thereby shortening the service life of the cable and being not conducive to the long-term stable use of the charging gun. SUMMARY

[0003] The embodiments of the present application provide a charging gun and a charging device, which can solve the technical problem that the cable is easily damaged due to overheating.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the embodiments of the present application is as follows: a charging gun, comprising a cable, a charging gun body, a sealing assembly and a heat dissipation assembly.

[0005] The cable comprises a core, and the core comprises a first pipe body extending in a first direction and a bare wire. The first pipe body has a plurality of first heat dissipation channels penetrating through the first pipe body in the first direction, and at least one first heat dissipation channel contains the bare wire. The charging gun body is connected with the cable, and the charging gun body is provided with an air inlet channel. The air inlet channel is in communication with the first heat dissipation channels and the outside. The sealing assembly is connected with one end of the cable away from the charging gun body, and the sealing assembly is provided with an air outlet channel. The air outlet channel is in communication with the first heat dissipation channels and the outside. The heat dissipation assembly is arranged on the sealing assembly, and the heat dissipation assembly is used to drive the gas to flow through the air inlet channel, the first heat dissipation channels in the cable and the air outlet channel in sequence.

[0006] The charging gun provided by the present application has the beneficial effects that the heat dissipation assembly drives the gas to flow through the air inlet channel, the first heat dissipation channels in the cable and the air outlet channel in sequence, which can cool the bare wire, thereby improving the heat dissipation efficiency of the bare wire, reducing the risk of damage of the cable due to overheating, and prolonging the service life of the cable and the charging gun. Since the first pipe body extends in the first direction and the first heat dissipation channels penetrate through the first pipe body in the first direction, the core can realize full-path heat dissipation, thereby improving the heat dissipation efficiency of the core and the heat dissipation efficiency of the cable and the charging gun with the core of the embodiments of the present application. In addition, the air cooling heat dissipation used by the charging gun of the embodiments of the present application has lower cost than liquid cooling heat dissipation, and the charging gun is convenient to assemble and maintain. Therefore, the embodiments of the present application can realize the heat dissipation of the charging gun with higher power at a lower cost.

[0007] In some implementations, the bare wire is provided with a plurality of bare wires, and the plurality of bare wires are distributed in the plurality of first heat dissipation channels.

[0008] By adopting the above scheme, the bare wires are less likely to be stacked together, so as to increase the contact area of the bare wires and the airflow, which is helpful for heat exchange between the bare wires and the airflow in the first heat dissipation channels, thereby the heat dissipation efficiency of the bare wires can be improved. Therefore, the wire core has high heat dissipation efficiency, and the heat dissipation efficiency of the cable and the charging gun with the wire core can be improved, so as to prolong the service life of the cable and the charging gun.

[0009] In some implementations, the bare wires are accommodated in each of the first heat dissipation channels.

[0010] By adopting the above scheme, the bare wires can be dispersed as much as possible, so that the bare wires are less likely to be stacked together.

[0011] In some implementations, the first tube body is provided with a first partition piece, the first partition piece is connected to the first tube body, and the first partition piece and the inner wall surface of the first tube body enclose a plurality of first heat dissipation channels.

[0012] By adopting the above scheme, in a first aspect, the first partition piece can divide the space in the first tube body into a plurality of first heat dissipation channels; in a second aspect, the first partition piece can also support the bare wires and limit the positions of the bare wires.

[0013] In some implementations, the first partition piece includes a plurality of first partition portions, the plurality of first partition portions are spaced apart along the circumference of the first tube body, the first partition portions extend along the first direction, each of the first partition portions encloses a first heat dissipation channel with the inner wall surface of the first tube body, and a second heat dissipation channel is formed between adjacent first partition portions, the second heat dissipation channel is in communication with the air inlet channel and the air outlet channel respectively, and the heat dissipation assembly is used to drive the airflow to flow through the air inlet channel, the second heat dissipation channel in the cable and the air outlet channel in sequence.

[0014] By adopting the above scheme, each of the first partition portions encloses a first heat dissipation channel with the inner wall surface of the first tube body, so the inner wall surface of the first heat dissipation channel is composed of the surface of the first partition portion facing the inner wall surface of the first tube body and part of the inner wall surface of the first tube body, so that the bare wires are dispersed around the outer circle of the first tube body along the central axis of the first tube body; so that the bare wires in the first heat dissipation channel can contact the first tube body, and heat exchange with the air in the space outside the first tube body, which is helpful for improving the heat dissipation efficiency of the bare wires. Moreover, the second heat dissipation channel is formed between adjacent first partition portions, which is helpful for heat exchange between the bare wires and the airflow in the second heat dissipation channel, thereby the heat dissipation efficiency of the bare wires can be improved.

[0015] In some implementations, the plurality of first partition portions are connected to each other.

[0016] By adopting the above scheme, the strength of the first partition piece can be improved, the first partition piece is not easy to be damaged, and the service life of the first pipe body is prolonged.

[0017] In some implementations, a plurality of first heat dissipation through grooves are formed on the first partition piece and are spaced apart along the circumference of the first pipe body, the first heat dissipation through grooves extend along the first direction and pass through the first partition piece, the inner wall surface of the first pipe body covers the groove opening of the first heat dissipation through grooves, and the first heat dissipation through grooves and the inner wall surface of the first pipe body form a first heat dissipation channel.

[0018] By adopting the above scheme, each first heat dissipation through groove and the inner wall surface of the first pipe body form a first heat dissipation channel, so that the inner wall surface of the first heat dissipation channel is composed of the inner wall surface of the first heat dissipation through groove and part of the inner wall surface of the first pipe body, so that the bare wires are dispersed around the central axis of the first pipe body; the bare wires in the first heat dissipation channel can contact the first pipe body, and heat exchange with the air in the space outside the first pipe body, which helps to improve the heat dissipation efficiency of the bare wires.

[0019] In some implementations, the charging gun body includes a first connection terminal, the first connection terminal is connected with the wire core, the first connection terminal has a first airflow channel therein, one end of the first airflow channel is in communication with the first heat dissipation channel, and the other end of the first airflow channel is in communication with the outside.

[0020] By adopting the above scheme, the first connection terminal is connected with the wire core, which can increase the strength of the end portion of the wire core, so as to reduce the risk that the airflow is not easy to enter the first heat dissipation channel due to deformation of the end portion of the wire core, and the first airflow channel can guide the airflow to the first heat dissipation channel in the wire core, which is more conducive to the airflow entering the first heat dissipation channel.

[0021] In some implementations, the wire core is connected with the first connection terminal one by one.

[0022] By adopting the above scheme, when there are a plurality of wire cores in the cable, the airflow in the air inlet channel can be more evenly dispersed into each wire core.

[0023] In some implementations, the charging gun body further includes a shell, the shell has an air inlet cavity and an air inlet, the air inlet is in communication with the air inlet cavity and the outside, the first connection terminal is accommodated in the air inlet cavity, and the air inlet, the air inlet cavity and the first airflow channel form an air inlet channel.

[0024] By adopting the above scheme, the cable has multiple wire cores, the charging gun body includes multiple first connection terminals, and the first connection terminals are connected with the wire cores one by one, the first airflow channels can be connected with each other through the air inlet cavity to balance the airflow flow rates in the first heat dissipation channels in the multiple wire cores, so that the heat dissipation efficiency of the multiple wire cores can be balanced. When the airflow flows through the air inlet cavity, heat exchange can be performed with the shell to reduce the temperature of the shell and the electrical elements in the shell.

[0025] In some implementations, the sealing assembly includes a second connection terminal connected with the wire core, and the second connection terminal has a second airflow channel therein, one end of the second airflow channel is connected with the first heat dissipation channel, and the other end of the second airflow channel is connected with the outside.

[0026] By adopting the above scheme, the second connection terminal is connected with the wire core, the strength of the end of the wire core can be increased to reduce the risk that the airflow is not easy to flow out of the first heat dissipation channel due to deformation of the end of the wire core, and the second airflow channel can guide the airflow out of the first heat dissipation channel in the wire core, which is more conducive to the airflow flowing out of the first heat dissipation channel.

[0027] In some implementations, the second connection terminal is connected with the wire core one by one, and the heat dissipation assembly includes a wind pump, the wind pump is arranged in the second airflow channel, or the wind pump is connected with one end of the second airflow channel away from the first heat dissipation channel.

[0028] By adopting the above scheme, one wind pump, one second connection terminal and one wire core can form an independent airflow flow system, that is, each wire core has a wind pump to drive the airflow flow in the wire core, so as to improve the heat dissipation efficiency of the wire core.

[0029] In some implementations, the cable includes a second pipe body extending in the first direction, and the wire core is accommodated in the second pipe body.

[0030] By adopting the above scheme, the wire core is accommodated in the second pipe body, so that the structure of the cable is more compact.

[0031] In some implementations, the second pipe body has multiple third heat dissipation channels penetrating through the second pipe body in the first direction, at least one third heat dissipation channel accommodates the wire core, and the third heat dissipation channels are respectively connected with the air inlet channel and the air outlet channel. The heat dissipation assembly is used to drive the airflow to flow through the air inlet channel, the third heat dissipation channel in the cable and the air outlet channel in sequence.

[0032] By adopting the above scheme, the heat dissipation assembly drives the gas to flow through the gas inlet channel, the third heat dissipation channel in the cable and the gas outlet channel in sequence, so that the wire core can be cooled, thereby improving the heat dissipation efficiency of the wire core, reducing the risk of damage of the cable due to overheating, and prolonging the service life of the cable and the charging gun. Moreover, since the second pipe body extends in the first direction, and the third heat dissipation channel penetrates through the second pipe body along the first direction, the cable can realize full-path heat dissipation, thereby improving the heat dissipation efficiency of the cable and the charging gun with the cable of the embodiments of the present application.

[0033] In some implementations, the second pipe body is provided with a second partition, the second partition is connected to the second pipe body, and the second partition and the inner wall surface of the second pipe body enclose a plurality of third heat dissipation channels.

[0034] By adopting the above scheme, the first aspect, the second partition can divide the space in the second pipe body into a plurality of third heat dissipation channels, and the second aspect, the second partition can also support the wire core and limit the position of the wire core.

[0035] In some implementations, the second partition includes a plurality of second partition portions, the plurality of second partition portions are spaced apart along the circumference of the second pipe body, the second partition portion extends in the first direction, and each second partition portion encloses a third heat dissipation channel with the inner wall surface of the second pipe body, and a fourth heat dissipation channel is formed between adjacent second partition portions, the fourth heat dissipation channel is in communication with the gas inlet channel and the gas outlet channel, and the heat dissipation assembly is used to drive the airflow to flow through the gas inlet channel, the fourth heat dissipation channel in the cable and the gas outlet channel in sequence.

[0036] By adopting the above scheme, each second partition portion encloses a third heat dissipation channel with the inner wall surface of the second pipe body, so that the inner wall surface of the third heat dissipation channel is composed of the surface of the second partition portion facing the inner wall surface of the second pipe body and part of the inner wall surface of the second pipe body, so that the wire core is dispersed around the central axis of the second pipe body; so that the wire core in the third heat dissipation channel can contact the second pipe body and exchange heat with the air in the space outside the second pipe body, which helps to improve the heat dissipation efficiency of the wire core. Moreover, the fourth heat dissipation channel is formed between adjacent second partition portions, which helps the wire core to exchange heat with the airflow in the fourth heat dissipation channel, thereby improving the heat dissipation efficiency of the wire core.

[0037] In some implementations, the plurality of second partition portions are connected to each other.

[0038] By adopting the above scheme, the strength of the second partition can be improved, so that the second partition is not easy to be damaged, thereby prolonging the service life of the second pipe body.

[0039] In some implementations, the second partition is provided with a plurality of second heat dissipation grooves which are spaced apart along the circumference of the second pipe body, the second heat dissipation grooves extend along the first direction and pass through the second partition, the inner wall surface of the second pipe body covers the groove opening of the second heat dissipation grooves, and the inner wall surface of the second pipe body and the second heat dissipation grooves form a third heat dissipation channel.

[0040] By using the above scheme, each second heat dissipation groove forms a third heat dissipation channel with the inner wall surface of the second pipe body, so that the inner wall surface of the third heat dissipation channel is composed of the inner wall surface of the second heat dissipation groove and part of the inner wall surface of the second pipe body, so that the wire core is dispersed around the central axis of the second pipe body; the wire core in the third heat dissipation channel can contact the second pipe body and exchange heat with the air in the space outside the second pipe body, which helps to improve the heat dissipation efficiency of the wire core.

[0041] In some implementations, the air inlet channel is provided with a waterproof structure to block the liquid entering the air inlet channel.

[0042] By using the above scheme, if the airflow carries water droplets, the waterproof structure can block the water droplets to prevent the cable from being waterlogged.

[0043] In some implementations, the waterproof structure includes a waterproof and breathable valve.

[0044] By using the above scheme, the waterproof and breathable valve can block the water droplets to prevent the cable from being waterlogged.

[0045] In some implementations, the charging gun body has an air inlet and an air outlet which communicate with the air inlet channel, the air outlet communicates with the first heat dissipation channel; the waterproof structure includes a plurality of water vapor baffles, the plurality of water vapor baffles are arranged in the air inlet channel, and the orthographic projections of adjacent water vapor baffles overlap in the projection plane perpendicular to the distribution direction of the air inlet and the air outlet.

[0046] By using the above scheme, the water vapor baffles and the air inlet channel form a labyrinth channel, which can effectively block the water droplets.

[0047] To achieve the above object, the technical scheme adopted by the embodiments of the present application is: a charging device, comprising a charging pile and the charging gun of the first aspect of the embodiment, the charging pile is electrically connected with the end of the cable connection and sealing assembly.

[0048] The charging device provided by the present application has the beneficial effects that: by applying the charging gun of the first aspect of the embodiment to the charging device, the heat dissipation efficiency of the charging device can be improved, and the service life of the charging device can be prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0050] Figure 1 is a structural schematic diagram of a charging device in one of the embodiments of the present application;

[0051] Figure 2 is Figure 1 is a partial internal structure schematic diagram of a charging gun body in the charging device shown in FIG. 1;

[0052] Figure 3 is a structural schematic diagram of a charging gun in one of the embodiments of the present application;

[0053] Figure 4 is a structural schematic diagram of a charging gun in another embodiment of the present application;

[0054] Figure 5 is a structural schematic diagram of a cross section of a wire core in one of the embodiments of the present application;

[0055] Figure 6 is a structural schematic diagram of a cross section of a wire core in another embodiment of the present application;

[0056] Figure 7 is a structural schematic diagram of a cross section of a wire core in another embodiment of the present application;

[0057] Figure 8 is a structural schematic diagram of a cross section of a cable in one of the embodiments of the present application;

[0058] Figure 9 is a structural schematic diagram of a cross section of a cable in another embodiment of the present application;

[0059] Figure 10 is a structural schematic diagram of a cross section of a cable in another embodiment of the present application;

[0060] Figure 11 is a structural schematic diagram of a cross section of a cable in another embodiment of the present application;

[0061] Figure 12 is a structural schematic diagram of a waterproof structure in a charging gun body in one of the embodiments of the present application. DETAILED DESCRIPTION

[0062] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0063] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0064] In addition, the terms "first", "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0065] In the present application, the reference "one embodiment", "some embodiments" or "embodiments" means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. In addition, in one or more embodiments, specific features, structures or characteristics can be combined in any suitable manner.

[0066] At present, car companies accelerate the launch of high-pressure models, making fast charging and super charging a user's basic need. Super charging usually requires maximum power exceeding 600kW and maximum current exceeding 600A, making it difficult to dissipate heat for the charging gun.

[0067] The embodiments of the present application provide a charging gun and a charging device, which can solve the technical problem that the cable is easily damaged due to overheating.

[0068] In order to illustrate the technical solutions of the present application, the specific embodiments will be described below with reference to the accompanying drawings and embodiments.

[0069] Please refer to Figures 1 to 5 The embodiments of the present application provide a charging gun 1, which comprises a cable 11, a charging gun body 12, a sealing assembly 13 and a heat dissipation assembly 14.

[0070] The cable 11 has a wire core 111, the wire core 111 includes a first pipe body 1111 extending in a first direction and a bare wire 1112, the first pipe body 1111 has a plurality of first heat dissipation channels 11111 penetrating through the first pipe body 1111 in the first direction, and the bare wire 1112 is accommodated in at least one first heat dissipation channel 11111; the charging gun body 12 is connected with the cable 11, the charging gun body 12 is provided with an air inlet channel 121, the air inlet channel 121 is in communication with the first heat dissipation channel 11111 and an external air inlet channel 121; the sealing assembly 13 is connected with one end of the cable 11 away from the charging gun body 12, the sealing assembly 13 is provided with an air outlet channel 131, the air outlet channel 131 is in communication with the first heat dissipation channel 11111 and an external air outlet channel 131; the heat dissipation assembly 14 is arranged on the sealing assembly 13, and the heat dissipation assembly 14 is used for driving the gas to flow through the air inlet channel 121, the first heat dissipation channel 11111 in the cable 11 and the air outlet channel 131 in sequence.

[0071] In the charging gun 1 provided by the embodiment of the present application, the heat dissipation assembly 14 drives the gas to flow through the air inlet channel 121, the first heat dissipation channel 11111 in the cable 11 and the air outlet channel 131 in sequence, so that the bare wire 1112 can be cooled, thereby improving the heat dissipation efficiency of the bare wire 1112, reducing the risk of damage of the cable 11 due to overheating, and prolonging the service life of the cable 11 and the charging gun 1.

[0072] Since the first pipe body 1111 extends in the first direction, and the first heat dissipation channel 11111 penetrates through the first pipe body 1111 in the first direction, the wire core 111 can realize full-path heat dissipation, thereby improving the heat dissipation efficiency of the wire core 111, and improving the heat dissipation efficiency of the cable 11 and the charging gun 1 having the wire core 111.

[0073] In addition, the air cooling heat dissipation used by the charging gun of the embodiment of the present application has lower cost compared with liquid cooling heat dissipation, and the charging gun is convenient to assemble and maintain. Therefore, the embodiment of the present application can realize heat dissipation of a charging gun with higher power at a lower cost.

[0074] It should be noted that the first pipe body 1111 is an insulating pipe.

[0075] It should be noted that the first direction is the axial direction of the first pipe body 1111. The central axis of the first pipe body 1111 is parallel to the first direction. The specific direction of the first direction depends on the state of the first pipe body 1111. For example, if the first pipe body 1111 is straightened, the central axis of the first pipe body 1111 is a straight line, and then the first direction is a direction parallel or approximately parallel to the straight line; if the first pipe body 1111 is wound on a certain receiving column, the central axis of the first pipe body 1111 is a spiral line or a curve similar to a spiral line, and then the first direction is also a spiral line or a curve similar to a spiral line.

[0076] Please refer to Figure 5 In some implementations, the bare wires 1112 are provided in a plurality, and the plurality of bare wires 1112 are distributed in the plurality of first heat dissipation channels 11111, so that the bare wires 1112 are less likely to be stacked together, so as to increase the contact area of the bare wires 1112 with the airflow, which helps the bare wires 1112 exchange heat with the airflow in the first heat dissipation channels 11111, thereby improving the heat dissipation efficiency of the bare wires 1112. Therefore, the core 111 of the embodiment of the present application has high heat dissipation efficiency, which can improve the heat dissipation efficiency of the cable 11 and the charging gun 1 having the core 111 of the embodiment of the present application, so as to prolong the service life of the cable 11 and the charging gun 1.

[0077] Please refer to Figure 5 In some implementations, the first heat dissipation channels 11111 each accommodate the bare wires 1112, so as to disperse the bare wires 1112 as much as possible, so that the bare wires 1112 are less likely to be stacked together.

[0078] It should be noted that in the first heat dissipation channels 11111 accommodating the bare wires 1112, the inner wall surface of the first heat dissipation channels 11111 is spaced apart from the bare wires 1112, so as to leave a channel for the airflow to flow in the first heat dissipation channels 11111, so as to facilitate the airflow to flow, which helps the bare wires 1112 exchange heat with the airflow, thereby improving the heat dissipation efficiency of the bare wires 1112.

[0079] Please refer to Figure 5 In some implementations, the first pipe body 1111 is provided with a first partition 1113, the first partition 1113 is connected to the first pipe body 1111, and the first partition 1113 and the inner wall surface of the first pipe body 1111 enclose a plurality of first heat dissipation channels 11111.

[0080] In the above implementations, the first partition 1113 can divide the space in the first pipe body 1111 into a plurality of first heat dissipation channels 11111, and the first partition 1113 can also support the bare wires 1112 and limit the position of the bare wires 1112.

[0081] Please refer to Figure 7In some implementations, the first partition 1113 includes a plurality of first partition portions 11131, the plurality of first partition portions 11131 are spaced apart along the circumference of the first pipe body 1111, each of the first partition portions 11131 extends in the first direction and encloses a first heat dissipation channel 11111 with the inner wall surface of the first pipe body 1111, and a second heat dissipation channel 11112 is formed between adjacent first partition portions 11131, the second heat dissipation channel 11112 is in communication with the air inlet channel 121 and the air outlet channel 131 respectively, and the heat dissipation assembly 14 is configured to drive the airflow to sequentially flow through the air inlet channel 121, the second heat dissipation channel 11112 in the cable 11 and the air outlet channel 131.

[0082] In the above-mentioned implementations, each of the first partition portions 11131 encloses the first heat dissipation channel 11111 with the inner wall surface of the first pipe body 1111, so the inner wall surface of the first heat dissipation channel 11111 is composed of the surface of the first partition portion 11131 facing the inner wall surface of the first pipe body 1111 and part of the inner wall surface of the first pipe body 1111, so that the bare wires 1112 are dispersed along the circumference of the first pipe body 1111 at the outer circle of the first pipe body 1111; and the bare wires 1112 in the first heat dissipation channel 11111 can contact the first pipe body 1111 and exchange heat with the air in the space outside the first pipe body 1111 through the first pipe body 1111, which helps to improve the heat dissipation efficiency of the bare wires 1112.

[0083] In the above-mentioned implementations, the second heat dissipation channel 11112 is formed between adjacent first partition portions 11131, which helps the bare wires 1112 to exchange heat with the airflow in the second heat dissipation channel 11112, thereby improving the heat dissipation efficiency of the bare wires 1112.

[0084] Optionally, the surface of the first partition portion 11131 facing the inner wall surface of the first pipe body 1111 can include a plurality of planes connected in sequence at an angle (for example Figure 7 ); or the surface of the first partition portion 11131 facing the inner wall surface of the first pipe body 1111 can be an arc surface.

[0085] In some implementations, the plurality of first partition portions 11131 are connected to each other.

[0086] By using the above technical solutions, the strength of the first partition 1113 can be improved, so that the first partition 1113 is not easy to be damaged, thereby prolonging the service life of the first pipe body 1111.

[0087] Optionally, the plurality of first partition portions 11131 are integrally formed, or the first partition 1113 further includes a first connecting portion, the first connecting portion is connected to the plurality of first partition portions 11131 respectively, so that the plurality of first partition portions 11131 can be connected to each other.

[0088] In the above embodiment, the plurality of first partition portions 11131 are integrally formed, which can reduce the manufacturing difficulty and cost of the first pipe body 1111.

[0089] Please refer to Figure 5 and Figure 6 In some embodiments, a plurality of first heat dissipation grooves 11132 are formed on the first partition piece 1113 and are spaced apart along the circumference of the first pipe body 1111. The first heat dissipation grooves 11132 extend along the first direction and penetrate the first partition piece 1113. The inner wall surface of the first pipe body 1111 covers the groove opening of the first heat dissipation grooves 11132, and the inner wall surface of the first pipe body 1111 and the first heat dissipation grooves 11132 form the first heat dissipation channel 11111.

[0090] In the above embodiment, each of the first heat dissipation grooves 11132 forms the first heat dissipation channel 11111 with the inner wall surface of the first pipe body 1111. Therefore, the inner wall surface of the first heat dissipation channel 11111 is composed of the inner wall surface of the first heat dissipation grooves 11132 and part of the inner wall surface of the first pipe body 1111. This allows the bare wires 1112 to be dispersed along the circumference of the first pipe body 1111 at the outer circle of the first pipe body 1111. The bare wires 1112 in the first heat dissipation channel 11111 can contact the first pipe body 1111 and exchange heat with the air in the space outside the first pipe body 1111 through the first pipe body 1111, which helps to improve the heat dissipation efficiency of the bare wires 1112.

[0091] Optionally, the inner wall surface of the first heat dissipation grooves 11132 can include a plurality of planes connected in sequence at an included angle (for example Figure 5 );The inner wall surface of the first heat dissipation grooves 11132 can also be an arc surface (for example Figure 6 )。

[0092] Please refer to Figure 2 In some embodiments, the charging gun body 12 includes a first connection terminal 122 connected with the wire core 111. The first connection terminal 122 has a first airflow channel 1221 therein. One end of the first airflow channel 1221 is in communication with the first heat dissipation channel 11111, and the other end of the first airflow channel 1221 is in communication with the outside.

[0093] In the above embodiment, the first connection terminal 122 is connected with the wire core 111, which can increase the strength of the end of the wire core 111 to reduce the risk that the airflow is not easy to enter the first heat dissipation channel 11111 due to deformation of the end of the wire core 111. The first airflow channel 1221 can guide the airflow to the first heat dissipation channel 11111 in the wire core 111, which is more conducive to the airflow entering the first heat dissipation channel 11111.

[0094] Please refer to Figure 2 The first connecting terminal 122 includes a first connecting portion 1222 and a first air inlet portion 1223. The first connecting portion 1222 is open at one end and closed at the other end. The first air inlet portion 1223 is open at both ends. The wire core 111 is inserted into the first connecting portion 1222 through the open end of the first connecting portion 1222. The bare wire 1112 in the wire core 111 passes through the closed end of the first connecting portion 1222 and is electrically connected to the electrical connecting terminal 124 in the charging gun body 12. One end of the first air inlet portion 1223 is open and communicates with the space in the first connecting portion 1222, so that the first air inlet portion 1223 and the space in the first connecting portion 1222 form a first airflow channel 1221.

[0095] In some embodiments, the first connecting portion 1222 and the second connecting portion 1322 are integrally formed.

[0096] In some embodiments, the cable 11 has a plurality of wire cores 111, and the plurality of wire cores 111 are connected to the same first connecting terminal 122, so that one first airflow channel 1221 can communicate with the first heat dissipation channels 11111 in the plurality of wire cores 111.

[0097] Please refer to Figure 3 In some embodiments, the wire core 111 is connected to the first connecting terminal 122 one by one.

[0098] By using the above scheme, when the cable 11 has a plurality of wire cores 111, the airflow in the air inlet channel 121 can be evenly distributed into each wire core 111.

[0099] Please refer to Figure 2 In some embodiments, the charging gun body 12 further includes a housing 123 having an air inlet cavity 1212 and an air inlet 1211. The air inlet 1211 communicates the air inlet cavity 1212 with the outside. The first connecting terminal 122 is accommodated in the air inlet cavity 1212. The air inlet 1211, the air inlet cavity 1212, and the first airflow channel 1221 form the air inlet channel 121.

[0100] In the above embodiments, when the cable 11 has a plurality of wire cores 111, the charging gun body 12 includes a plurality of first connecting terminals 122, and the first connecting terminal 122 is connected to the wire core 111 one by one. The first airflow channels 1221 can communicate with each other through the air inlet cavity 1212 to balance the airflow velocity in the first heat dissipation channels 11111 in the plurality of wire cores 111, so as to balance the heat dissipation efficiency of the plurality of wire cores 111. When the airflow flows through the air inlet cavity 1212, heat exchange can be performed with the housing 123 to reduce the temperature of the housing 123 and the electrical elements in the housing 123.

[0101] In the above embodiments, the first airflow passage 1221 is in communication with the outside through the air inlet 1211 and the air inlet cavity 1212.

[0102] Referring to Figure 2 In some embodiments, the shell 123 is configured to form a gun body 1231 and a gun head 1232 of the charging gun body 12, the air inlet cavity 1212 is arranged in the gun body 1231, the gun head 1232 is provided with a containing cavity 12321 in communication with the air inlet cavity 1212, and the air inlet 1211 is formed at the communication position of the air inlet cavity 1212 and the containing cavity 12321. The charging gun body 12 further comprises an electric connection terminal 124, the electric connection terminal 124 is arranged through the air inlet 1211, so that one end of the electric connection terminal 124 is electrically connected with the bare wire 1112 in the wire core 111 in the air inlet cavity 1212, and the other end of the electric connection terminal 124 is located in the containing cavity 12321, when the charging gun body 12 is plugged into the vehicle, the gun head 1232 is plugged into the charging port of the vehicle, and the electric connection terminal 124 is electrically connected with the pin of the vehicle.

[0103] Referring to Figure 2 In some embodiments, the air inlet 1211 is arranged on the gun body 1231.

[0104] Referring to Figure 3 In some embodiments, the sealing assembly 13 comprises a second connection terminal 132, the second connection terminal 132 is connected with the wire core 111, the second connection terminal 132 is provided with a second airflow passage 1321, one end of the second airflow passage 1321 is in communication with the first heat dissipation passage 11111, and the other end of the second airflow passage 1321 is in communication with the outside.

[0105] In the above embodiments, the second connection terminal 132 is connected with the wire core 111, which can increase the strength of the end of the wire core 111, so as to reduce the risk that the airflow is not easy to flow out of the first heat dissipation passage 11111 due to the deformation of the end of the wire core 111, and the second airflow passage 1321 can guide the airflow out of the first heat dissipation passage 11111 in the wire core 111, which is more conducive to the airflow flowing out of the first heat dissipation passage 11111.

[0106] Referring to Figure 3 The second connection terminal 132 comprises a second connection part 1322 and a second air inlet part 1323, the second connection part 1322 is an open structure with one end open and the other end closed, and the second air inlet part 1323 is an open structure with both ends open. The wire core 111 is plugged into the second connection part 1322 through the open end of the second connection part 1322. One end of the second air inlet part 1323 is in communication with the space in the second connection part 1322, so that the second air inlet part 1323 and the space in the second connection part 1322 form the second airflow passage 1321.

[0107] In the above embodiments, the bare wire 1112 in the wire core 111 penetrates through the sealed end of the second connecting portion 1322 and is electrically connected with the charging pile 2 (for example, as shown in the figure). Figure 1

[0108] In some embodiments, the second connecting portion 1322 and the second connecting portion 1322 are integrally formed.

[0109] In some embodiments, the plurality of wire cores 111 are connected with the same second connecting terminal 132, so that one second airflow channel 1321 can communicate with the first heat dissipation channel 11111 in the plurality of wire cores 111.

[0110] For example, as shown in the figure, Figure 3 In some embodiments, the second connecting terminal 132 is connected with the wire core 111 one by one, and the heat dissipation assembly 14 includes a wind pump 141, which is arranged in the second airflow channel 1321, or the wind pump 141 communicates with one end of the second airflow channel 1321 away from the first heat dissipation channel 11111.

[0111] In the above embodiments, one wind pump 141, one second connecting terminal 132 and one wire core 111 can constitute an independent airflow flow system, that is, each wire core 111 has a wind pump 141 to drive the airflow flow in the wire core 111, so as to improve the heat dissipation efficiency of the wire core 111.

[0112] For example, as shown in the figure, Figure 3 In some embodiments, one end of the wire core 111 is connected with the first connecting terminal 122 one by one, the other end of the wire core 111 is connected with the second connecting terminal 132 one by one, and the wind pump 141 is arranged in the second airflow channel 1321 in the second connecting terminal 132, or the wind pump 141 communicates with one end of the second airflow channel 1321 away from the first heat dissipation channel 11111. So that one wind pump 141, one second connecting terminal 132, one wire core 111 and one first connecting terminal 122 can constitute an independent airflow flow system, so as to improve the heat dissipation efficiency of the wire core 111.

[0113] It should be noted that the air outlet channel 131 in the embodiments of the present application is related to the structure of the sealing assembly 13.

[0114] For example, as shown in the figure, Figure 3 In some embodiments, the sealing assembly 13 only includes the second connecting terminal 132, and the second airflow channel 1321 in the second connecting terminal 132 constitutes the air outlet channel 131.

[0115] For example, as shown in the figure, Figure 4 ​In some embodiments, the sealing assembly 13 comprises a connecting piece 133 and a plurality of second connecting terminals 132, the connecting piece 133 is provided with an exhaust cavity 1331 and an exhaust port in communication with the exhaust cavity 1331, and the second connecting terminals 132 are accommodated in the exhaust cavity 1331, so that the second airflow passages 1321 in the second connecting terminals 132, the exhaust cavity 1331 and the exhaust port constitute the above-mentioned air outlet passage 131. The air pump 141 is arranged at the exhaust port or in communication with the exhaust port. The plurality of second airflow passages 1321 are in communication with each other through the exhaust cavity 1331, and one air pump 141 can drive the airflow in the plurality of wire cores 111 to flow at the same time, so as to reduce the cost.

[0116] It should be noted that the relative position relationship between the sealing assembly 13 and the charging pile 2 is not limited, that is, the sealing assembly 13 can be arranged outside the charging pile 2 (for example Figure 1 ), so that the heat dissipation assembly 14 is also located outside the charging pile 2; the sealing assembly 13 can also be arranged in the charging pile 2, so that the heat dissipation assembly 14 is also located in the charging pile 2.

[0117] Please refer to Figure 8 (not shown in the first partition 1113 in the first pipe body 1111), in some embodiments, the cable 11 comprises a second pipe body 112 extending in the first direction, and the wire core 111 is accommodated in the second pipe body 112.

[0118] By accommodating the wire core 111 in the second pipe body 112, the structure of the cable 11 is more compact.

[0119] Please refer to Figure 9 (not shown in the first partition 1113 in the first pipe body 1111), in some embodiments, the second pipe body 112 has a plurality of third heat dissipation passages 1121 penetrating through the second pipe body 112 in the first direction, at least one third heat dissipation passage 1121 accommodates the wire core 111, and the third heat dissipation passage 1121 is in communication with the air inlet passage 121 and the air outlet passage 131 respectively, and the heat dissipation assembly 14 is used to drive the airflow to flow through the air inlet passage 121, the third heat dissipation passage 1121 in the cable 11 and the air outlet passage 131 in sequence.

[0120] In the above-mentioned embodiments, the heat dissipation assembly 14 drives the airflow to flow through the air inlet passage 121, the third heat dissipation passage 1121 in the cable 11 and the air outlet passage 131 in sequence, which can cool the wire core 111, thereby improving the heat dissipation efficiency of the wire core 111, reducing the risk of damage of the cable 11 due to overheating, and prolonging the service life of the cable 11 and the charging gun 1.

[0121] Since the second pipe body 112 extends in the first direction, and the third heat dissipation channel 1121 penetrates through the second pipe body 112 along the first direction, the cable 11 can realize full-path heat dissipation, so as to improve the heat dissipation efficiency of the cable 11, and improve the heat dissipation efficiency of the charging gun 1 with the cable 11 of the embodiment.

[0122] Please refer to Figure 1 and Figure 2 In some embodiments, the cable 11 is plugged with the gun body 1231, and the second pipe body 112 is in communication with the air inlet cavity 1212 in the gun body 1231, so that the third heat dissipation channel 1121 is in communication with the air inlet channel 121. Under the driving of the heat dissipation assembly 14, the airflow can enter the air inlet cavity 1212 through the air inlet 1211, and then flow into the third heat dissipation channel 1121.

[0123] Please refer to Figure 4 In some embodiments, the sealing assembly 13 includes the connector 133 and a plurality of second connection terminals 132, the second pipe body 112 is plugged with the connector 133, and the second pipe body 112 is in communication with the air outlet cavity 1331 in the connector 133, so that the third heat dissipation channel 1121 is in communication with the air outlet channel 131. Under the driving of the heat dissipation assembly 14, the airflow can flow through the third heat dissipation channel 1121 to the air outlet cavity 1331, and then be discharged through the air outlet.

[0124] It should be noted that the number of wire cores 111 can be selected according to actual needs.

[0125] For example, in some embodiments, the wire core 111 is provided with two wire cores, one of which is used to connect the positive wire core of the positive electrode of the charging pile 2, and the other is used to connect the negative wire core of the negative electrode of the charging pile 2. In addition, some wire cores can be signal lines of the charging gun.

[0126] For example, in some embodiments, the wire core 111 is provided with three wire cores, one of which is a live wire for connecting the positive wire core of the positive electrode of the charging pile 2, one is a zero line for connecting the negative wire core of the negative electrode of the charging pile 2, and one is a ground wire for grounding.

[0127] It should be noted that the second pipe body 112 is an insulating outer cover in the cable.

[0128] Please refer to Figure 9The first partition 1113 in the first pipe body 1111 is not shown. In some implementations, the plurality of wire cores 111 are distributed in the plurality of third heat dissipation channels 1121, so that the wire cores 111 are not easily stacked together, so as to increase the contact area of the wire cores 111 with the airflow, and help the wire cores 111 exchange heat with the airflow in the third heat dissipation channels 1121, thereby improving the heat dissipation efficiency of the wire cores 111. Therefore, the cable 11 has high heat dissipation efficiency, and the heat dissipation efficiency of the cable 11 and the charging gun 1 can be improved, so as to prolong the service life of the cable 11 and the charging gun 1.

[0129] Please refer to Figure 9 The first partition 1113 in the first pipe body 1111 is not shown. In some implementations, the plurality of wire cores 111 are distributed in the plurality of third heat dissipation channels 1121, so that the wire cores 111 are not easily stacked together, so as to increase the contact area of the wire cores 111 with the airflow, and help the wire cores 111 exchange heat with the airflow in the third heat dissipation channels 1121, thereby improving the heat dissipation efficiency of the wire cores 111. Therefore, the cable 11 has high heat dissipation efficiency, and the heat dissipation efficiency of the cable 11 and the charging gun 1 can be improved, so as to prolong the service life of the cable 11 and the charging gun 1.

[0130] It should be noted that in the third heat dissipation channel 1121 containing the wire core 111, the inner wall surface of the third heat dissipation channel 1121 is spaced apart from the wire core 111, so as to leave a channel for the airflow to flow in the third heat dissipation channel 1121, so as to facilitate the airflow to flow, and help the wire core 111 exchange heat with the airflow, thereby improving the heat dissipation efficiency of the wire core 111.

[0131] Please refer to Figure 9 The first partition 1113 in the first pipe body 1111 is not shown. In some implementations, the second pipe body 112 is provided with a second partition 113, the second partition 113 is connected to the second pipe body 112, and the second partition 113 and the inner wall surface of the second pipe body 112 form a plurality of third heat dissipation channels 1121.

[0132] In the above implementations, the first aspect of the second partition 113 can divide the space in the second pipe body 112 into a plurality of third heat dissipation channels 1121, and the second aspect of the second partition 113 can also support the wire core 111 and limit the position of the wire core 111.

[0133] Please refer to Figure 11The first partition 1113 in the first pipe body 1111 is not shown. In some embodiments, the second partition 113 includes a plurality of second partition portions 1131, the plurality of second partition portions 1131 are spaced apart along the circumference of the second pipe body 112, each of the second partition portions 1131 extends in the first direction and encloses a third heat dissipation channel 1121 with the inner wall surface of the second pipe body 112, and the fourth heat dissipation channel 1122 is formed between adjacent second partition portions 1131, the fourth heat dissipation channel 1122 is in communication with the air inlet channel 121 and the air outlet channel 131 respectively, and the heat dissipation assembly 14 is configured to drive the airflow to flow through the air inlet channel 121, the fourth heat dissipation channel 1122 in the cable 11 and the air outlet channel 131 in sequence.

[0134] In the above embodiments, each of the second partition portions 1131 encloses the third heat dissipation channel 1121 with the inner wall surface of the second pipe body 112, so that the inner wall surface of the third heat dissipation channel 1121 is composed of the surface of the second partition portion 1131 facing the inner wall surface of the second pipe body 112 and part of the inner wall surface of the second pipe body 112, so that the wire core 111 is dispersed in the outer ring of the second pipe body 112 along the circumference of the second pipe body 112; so that the wire core 111 in the third heat dissipation channel 1121 can contact the second pipe body 112 and exchange heat with the air in the space outside the second pipe body 112, which helps to improve the heat dissipation efficiency of the wire core 111.

[0135] In the above embodiments, the fourth heat dissipation channel 1122 is formed between adjacent second partition portions 1131, which helps the wire core 111 to exchange heat with the airflow in the fourth heat dissipation channel 1122, thereby improving the heat dissipation efficiency of the wire core 111.

[0136] Optionally, the surface of the second partition portion 1131 facing the inner wall surface of the second pipe body 112 can include a plurality of planes connected in sequence at an angle (for example Figure 11 ); or the surface of the second partition portion 1131 facing the inner wall surface of the second pipe body 112 can be an arc surface.

[0137] In some embodiments, the plurality of second partition portions 1131 are connected to each other.

[0138] By using the above technical solutions, the strength of the second partition 113 can be improved, so that the second partition 113 is not easy to be damaged, thereby prolonging the service life of the second pipe body 112.

[0139] Optionally, the plurality of second partition portions 1131 are integrally formed, or the second partition 113 further includes a second connecting portion, the second connecting portion is connected to the plurality of second partition portions 1131 respectively, so that the plurality of second partition portions 1131 can be connected to each other.

[0140] In the above embodiment, the plurality of second partition portions 1131 are integrally formed, which can reduce the manufacturing difficulty and cost of the second pipe body 112.

[0141] Please refer to Figure 9 and Figure 10 In some embodiments, a plurality of second heat dissipation grooves 1132 are formed on the second partition piece 113 and are spaced apart along the circumference of the second pipe body 112. The second heat dissipation grooves 1132 extend along the first direction and pass through the second partition piece 113. The inner wall surface of the second pipe body 112 covers the groove of the second heat dissipation grooves 1132, and the inner wall surface of the second pipe body 112 and the second heat dissipation grooves 1132 form a third heat dissipation channel 1121.

[0142] In the above embodiment, each of the second heat dissipation grooves 1132 forms the third heat dissipation channel 1121 with the inner wall surface of the second pipe body 112. Therefore, the inner wall surface of the third heat dissipation channel 1121 is composed of the inner wall surface of the second heat dissipation grooves 1132 and part of the inner wall surface of the second pipe body 112, so that the wire core 111 is dispersed along the circumference of the second pipe body 112; so that the wire core 111 in the third heat dissipation channel 1121 can contact the second pipe body 112 and exchange heat with the air in the space outside the second pipe body 112 through the second pipe body 112, which helps to improve the heat dissipation efficiency of the wire core 111.

[0143] Optionally, the inner wall surface of the second heat dissipation grooves 1132 can include a plurality of planes connected in sequence at an included angle (for example Figure 9 );The inner wall surface of the second heat dissipation grooves 1132 can also be an arc surface (for example Figure 10 )。

[0144] Please refer to Figure 2 In some embodiments, a waterproof structure 125 is arranged in the air inlet channel 121 to block the liquid entering the air inlet channel 121.

[0145] Through the above arrangement, if the airflow carries water droplets, the waterproof structure 125 can block the water droplets to prevent the cable 11 from entering water.

[0146] In some embodiments, the waterproof structure 125 includes a waterproof air valve.

[0147] In the above embodiment, the waterproof air valve can block the water droplets to prevent the cable 11 from entering water.

[0148] In an embodiment, the waterproof and breathable valve comprises an expanded polytetrafluoroethylene microporous membrane, the micropores of the expanded polytetrafluoroethylene microporous membrane have a diameter of 0.1-10 microns, and the diameter of a gas molecule is about 0.0004 microns, so the gas can pass through the expanded polytetrafluoroethylene microporous membrane smoothly. The diameter of a water droplet is larger than the diameter of the micropores of the expanded polytetrafluoroethylene microporous membrane, for example, the diameter of a drizzle in meteorological terms is about 400 microns, so the expanded polytetrafluoroethylene microporous membrane can effectively prevent the water droplets from entering the cable 11.

[0149] Please refer to Figure 12 In some embodiments, the charging gun body 12 has an air inlet 1211 and an air outlet 1213 communicating with the air inlet channel 121, and the air outlet 1213 communicates with the first heat dissipation channel 11111 (not shown in the figure, please refer to Figure 2 , wherein the air outlet 1213 is formed on the first connecting portion 1222 in Figure 2 ); the waterproof structure 125 comprises a plurality of water vapor baffles 1251, the plurality of water vapor baffles 1251 are arranged in the air inlet channel 121, and the orthographic projections of adjacent water vapor baffles 1251 coincide on the projection plane perpendicular to the distribution direction of the air inlet 1211 and the air outlet 1213.

[0150] In the above embodiment, the water vapor baffles 1251 and the air inlet channel 121 form a labyrinth channel, which can effectively block the water droplets.

[0151] It should be noted that Figure 12 The shape, number and arrangement of the water vapor baffles 1251 shown are only one embodiment in the present scheme, and the shape, number and arrangement of the water vapor baffles 1251 can be designed according to requirements, as long as the function of blocking water droplets can be achieved.

[0152] Please refer to Figure 1 The present application provides a charging device, which comprises a charging pile 2 and the charging gun 1 of the first aspect of the embodiment, and the charging pile 2 is electrically connected to the end of the cable 11 sealing assembly 13.

[0153] By applying the charging gun 1 of the first aspect of the embodiment to the charging device, the heat dissipation efficiency of the charging device can be improved, and the service life of the charging device can be prolonged.

[0154] Please refer to Figure 1 In some embodiments, the charging pile 2 comprises a power supply assembly 21, and the bare wire 1112 is arranged in the heat dissipation assembly 14 and is electrically connected to the power supply assembly 21.

[0155] The above examples are only used to illustrate the technical solutions of the present application, but not to limit the same; although the present application has been described in detail with reference to the foregoing examples, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A charging gun, characterized in that, The cable comprises a core, the core comprises a first tube body extending in a first direction and a bare wire, the first tube body has a plurality of first heat dissipation channels penetrating through the first tube body in the first direction, and the bare wire is accommodated in at least one of the first heat dissipation channels. The charging gun body is connected with the cable, the charging gun body is provided with an air inlet channel, the air inlet channel is in communication with the first heat dissipation channel and the outside, the charging gun body comprises a first connecting terminal and a second connecting terminal, the core is in one-to-one correspondence with the first connecting terminal, one end of the core is connected with the first connecting terminal, the other end of the core is in one-to-one correspondence with the second connecting terminal, and the other end of the core is connected with the second connecting terminal. The sealing assembly is connected with one end of the cable away from the charging gun body, the sealing assembly is provided with an air outlet channel, the air outlet channel is in communication with the first heat dissipation channel and the outside, and the sealing assembly is provided with a sealing assembly. The sealing assembly comprises the second connecting terminal, the second connecting terminal comprises a second connecting part and a second air inlet part, the second connecting part is an open structure with one end open and the other end closed, the second air inlet part is a structure with both ends open, the core is connected to the second connecting part through the open end of the second connecting part, and the opening of one end of the second air inlet part is in communication with the space in the second connecting part. The first tube body is provided with a first partition, the first partition is connected to the first tube body, and the first partition and the inner wall surface of the first tube body enclose a plurality of first heat dissipation channels.

2. The charging gun of claim 1, wherein, The first partition comprises a plurality of first partition parts, the first partition parts are distributed in a circumferential direction of the first tube body, the first partition parts extend in the first direction, each first partition part encloses a first heat dissipation channel with the inner wall surface of the first tube body, and a second heat dissipation channel is formed between adjacent first partition parts, the second heat dissipation channel is in communication with the air inlet channel and the air outlet channel, and the heat dissipation assembly is used to drive the airflow to flow through the air inlet channel, the second heat dissipation channel in the cable and the air outlet channel in sequence.

3. The charging gun of claim 2, wherein, The first partition is provided with a plurality of first heat dissipation grooves distributed in the circumferential direction of the first tube body, the first heat dissipation grooves extend in the first direction and penetrate the first partition, the inner wall surface of the first tube body covers the groove opening of the first heat dissipation grooves, and the first tube body and the first heat dissipation grooves enclose the first heat dissipation channels.

4. The charging gun of claim 2, wherein, The first connecting terminal has a first airflow channel, one end of the first airflow channel is in communication with the first heat dissipation channel, and the other end of the first airflow channel is in communication with the outside.

5. The charging gun according to any one of claims 1 to 4, characterized in that, ​ 6. The charging gun of claim 5, wherein, The charging gun body further comprises a shell having an air inlet cavity and an air inlet, the air inlet communicates the air inlet cavity with the outside, the first connecting terminal is accommodated in the air inlet cavity, and the air inlet, the air inlet cavity and the first airflow passage constitute the air inlet passage.

7. The charging gun according to any one of claims 1 to 4, characterized in that, The second connecting terminal has a second airflow passage therein, one end of the second airflow passage communicates with the first heat dissipation passage, and the other end of the second airflow passage communicates with the outside.

8. The charging gun of claim 7, wherein, The heat dissipation assembly further comprises a wind pump, the wind pump is arranged in the second airflow passage, or the wind pump communicates with one end of the second airflow passage away from the first heat dissipation passage.

9. The charging gun according to any one of claims 1 to 4, characterized in that, A waterproof structure is arranged in the air inlet passage to block the liquid entering the air inlet passage.

10. A charging device, characterized by The charging gun comprises: The charging gun according to any one of claims 1 to 9; The charging pile is electrically connected with the end of the cable connected with the sealing assembly.

Images