Charging gun and charging equipment

Abstract

The invention relates to the technical field of charging, in particular to a charging gun and charging equipment. The charging gun comprises a cable, a charging gun body, a sealing assembly and a heat dissipation assembly. The cable comprises a cable core, the cable core comprises a first pipe body extending in the first direction and a bare wire, the first pipe body is internally provided with a plurality of first heat dissipation channels penetrating through the first pipe body in the first direction, and the bare wire is contained in at least one first heat dissipation channel; the charging gun body is connected with the cable, the charging gun body is provided with an air inlet channel, and the air inlet channel is communicated with the first heat dissipation channel and the outside; the sealing assembly is connected with the end, away from the charging gun body, of the cable, and an air outlet channel is formed in the sealing assembly and communicates with the first heat dissipation channel and the outside. The heat dissipation assembly is arranged on the sealing assembly, and the heat dissipation assembly is used for driving gas to sequentially flow through the gas inlet channel, the first heat dissipation channel in the cable and the gas outlet channel. The bare conductor can be cooled, and the risk that the cable is damaged due to overheating is reduced.

Description

Technical Field

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

[0002] The charging gun is used to connect the charging pile with the device to be charged to supply power to the device to be charged. In order to speed up the charging speed, the charging power and charging current of the charging gun will be increased, causing the cable inside the charging gun to heat up, making the cable easily damaged by overheating, thus shortening the service life of the cable and not conducive to the long-term stable use of the charging gun. Summary of the invention

[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 solution adopted in the embodiment of the present application is: a charging gun, including a cable, a charging gun body, a sealing assembly and a heat dissipation assembly.

[0005] The cable includes a wire core, which includes 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 the first tube body along the first direction, and at least one first heat dissipation channel accommodates a bare wire; a charging gun body is connected to the cable, and an air inlet channel is provided on the charging gun body, and the air inlet channel is connected to the first heat dissipation channel and the outside; a sealing assembly is connected to an end of the cable away from the charging gun body, and an air outlet channel is provided on the sealing assembly, and the air outlet channel is connected to the first heat dissipation channel and the outside; a 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 channel in the cable and the air outlet channel in sequence.

[0006] The beneficial effect of the charging gun provided by the present application is that the heat dissipation component drives the gas to flow through the air inlet channel, the first heat dissipation channel 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, so as to reduce the risk of damage to the cable due to overheating, and to extend the service life of the cable and the charging gun. Since the first tube body extends in the first direction, and the first heat dissipation channel runs through the first tube body along the first direction; the wire core can achieve full-path heat dissipation to improve the heat dissipation efficiency of the wire core, as well as improve the heat dissipation efficiency of the cable and the charging gun having the wire core of the embodiment of the present application. In addition, the air cooling heat dissipation used by the charging gun in the embodiment of the present application is lower in cost than liquid cooling heat dissipation, and the assembly and maintenance of the charging gun are relatively convenient. In this way, the embodiment of the present application can achieve heat dissipation of a higher-power charging gun at a lower cost.

[0007] In some implementations, there are multiple bare wires, and the multiple bare wires are distributed in multiple first heat dissipation channels.

[0008] By adopting the above solution, the bare wires are not easy to pile up together, so as to increase the contact area between the bare wires and the airflow, which helps the bare wires to exchange heat with the airflow in the first heat dissipation channel, thereby improving the heat dissipation efficiency of the bare wires. Therefore, the wire core of the embodiment of the present application has a high heat dissipation efficiency, which can improve the heat dissipation efficiency of the cable and charging gun having the wire core of the embodiment of the present application, so as to extend the service life of the cable and the charging gun.

[0009] In some implementations, each first heat dissipation channel contains a bare wire.

[0010] By adopting the above solution, the bare wires can be dispersed as much as possible, so that the bare wires are not easily piled up.

[0011] In some implementations, a first partition is disposed in the first tube body, the first partition is connected to the first tube body, and the first partition and the inner wall surface of the first tube body are enclosed to form a plurality of first heat dissipation channels.

[0012] By adopting the above solution, on the first hand, the first partition can divide the space in the first tube into a plurality of first heat dissipation channels; on the second hand, the first partition can also support the bare wire and limit the position of the bare wire.

[0013] In some implementations, the first partition includes a plurality of first partitions, which are spaced apart along the circumference of the first tube body, extend along a first direction, and each first partition is enclosed with the inner wall surface of the first tube body to form a first heat dissipation channel, and a second heat dissipation channel is formed between adjacent first partitions, the second heat dissipation channel is respectively connected to 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.

[0014] By adopting the above scheme, each first partition is enclosed with the inner wall surface of the first tube body to form a first heat dissipation channel, so the inner wall surface of the first heat dissipation channel is composed of the surface of the first partition 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 wire is dispersed around the central axis of the first tube body in the outer circle of the first tube body; so that the bare wire in the first heat dissipation channel can contact the first tube body, and heat is exchanged with the air in the space outside the first tube body by means of the first tube body, which helps to improve the heat dissipation efficiency of the bare wire. In addition, a second heat dissipation channel is formed between adjacent first partitions, which helps the bare wire to exchange heat with the airflow in the second heat dissipation channel, thereby improving the heat dissipation efficiency of the bare wire.

[0015] In some embodiments, a plurality of first partitions are connected to each other.

[0016] By adopting the above solution, the strength of the first partition can be improved, so that the first partition is not easily damaged, thereby extending the service life of the first tube body.

[0017] In some implementations, a plurality of first heat dissipation grooves are provided on the first partition and are spaced apart circumferentially along the first tube body. The first heat dissipation grooves extend along the first direction and pass through the first partition. The inner wall surface of the first tube body covers the groove opening of the first heat dissipation grooves, and the inner wall surface of the first tube body and the first heat dissipation grooves are combined to form a first heat dissipation channel.

[0018] By adopting the above scheme, each first heat dissipation groove is enclosed with the inner wall surface of the first tube body to form a first heat dissipation channel, so the inner wall surface of the first heat dissipation channel is composed of the inner wall surface of the first heat dissipation groove and part of the inner wall surface of the first tube body, so that the bare wire is dispersed in the outer circle of the first tube body around the central axis of the first tube body; the bare wire in the first heat dissipation channel can contact the first tube body, and heat is exchanged with the air in the space outside the first tube body by means of the first tube body, which helps to improve the heat dissipation efficiency of the bare wire.

[0019] In some implementations, the charging gun body includes a first connecting terminal, which is connected to the wire core. The first connecting terminal has a first airflow channel inside. One end of the first airflow channel is connected to the first heat dissipation channel, and the other end of the first airflow channel is connected to the outside.

[0020] By adopting the above scheme, the first connecting terminal is connected to the wire core, which can increase the strength of the wire core end to reduce the risk of airflow not being able to enter the first heat dissipation channel due to deformation of the wire core end, 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 cores are connected to the first connection terminals in a one-to-one correspondence.

[0022] By adopting the above solution, when there are multiple wire cores in the cable, the airflow in the air inlet channel can be dispersed to each wire core more evenly.

[0023] In some implementations, the charging gun body also includes a shell having an air inlet cavity and an air inlet port, the air inlet port connects the air inlet cavity and the outside, the first connecting terminal is accommodated in the air inlet cavity, and the air inlet port, the air inlet cavity and the first airflow channel constitute an air inlet channel.

[0024] By adopting the above solution, there are multiple wire cores in the cable, the charging gun body includes multiple first connection terminals, and when the first connection terminals are connected to the wire cores one by one, the first airflow channels can be interconnected through the air inlet cavity to balance the airflow velocity in the first heat dissipation channel in the multiple wire cores, thereby balancing the heat dissipation efficiency of the multiple wire cores. When the airflow flows through the air inlet cavity, it can exchange heat with the shell to reduce the temperature of the shell and the electrical components in the shell.

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

[0026] By adopting the above scheme, the second connecting terminal is connected to the wire core, which can increase the strength of the wire core end to reduce the risk of airflow not being able to flow out of the first heat dissipation channel due to deformation of the wire core end, 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 terminals are connected to the wire cores in a one-to-one correspondence, and the heat dissipation assembly includes an air pump, which is disposed in the second air flow channel, or the air pump is connected to an end of the second air flow channel that is away from the first heat dissipation channel.

[0028] By adopting the above solution, an air pump, a second connecting terminal and a wire core can form an independent air flow system, that is, each wire core has an air pump to drive the air flow in the wire core to improve the heat dissipation efficiency of the wire core.

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

[0030] By adopting the above solution, the wire core is accommodated in the second tube body, making the structure of the cable more compact.

[0031] In some implementations, the second tube body has multiple third heat dissipation channels that penetrate the second tube body along the first direction, at least one third heat dissipation channel accommodates a wire core, and the third heat dissipation channels are respectively connected to the air inlet channel and the air outlet channel, and the heat dissipation component 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 solution, the heat dissipation component drives the gas to flow through the air inlet channel, the third heat dissipation channel in the cable and the air outlet channel in sequence, which can cool the wire core, thereby improving the heat dissipation efficiency of the wire core, reducing the risk of damage to the cable due to overheating, and extending the service life of the cable and the charging gun. And because the second tube body extends in the first direction, and the third heat dissipation channel passes through the second tube body along the first direction; the cable can achieve full-path heat dissipation, thereby improving the heat dissipation efficiency of the cable, and improving the heat dissipation efficiency of the charging gun having the cable of the embodiment of the present application.

[0033] In some implementations, a second partition is disposed in the second tube body, the second partition is connected to the second tube body, and the second partition and the inner wall surface of the second tube body are enclosed to form a plurality of third heat dissipation channels.

[0034] By adopting the above solution, on the first aspect, the second partition can divide the space in the second tube body into a plurality of third heat dissipation channels, and on 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 partitions, which are spaced apart along the circumference of the second tube body, extend along the first direction, and each second partition is enclosed with the inner wall surface of the second tube body to form a third heat dissipation channel, and a fourth heat dissipation channel is formed between adjacent second partitions, and the fourth heat dissipation channel is respectively connected to 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 fourth heat dissipation channel in the cable, and the air outlet channel in sequence.

[0036] By adopting the above scheme, each second partition is enclosed with the inner wall surface of the second tube body to form a third heat dissipation channel, so the inner wall surface of the third heat dissipation channel is composed of the surface of the second partition facing the inner wall surface of the second tube body and part of the inner wall surface of the second tube body, so that the wire core is dispersed around the central axis of the second tube body in the outer circle of the second tube body; so that the wire core in the third heat dissipation channel can contact the second tube body, and heat is exchanged with the air in the space outside the second tube body with the help of the second tube body, which helps to improve the heat dissipation efficiency of the wire core. In addition, a fourth heat dissipation channel is formed between adjacent second partitions, 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 embodiments, a plurality of second partitions are connected to each other.

[0038] By adopting the above solution, the strength of the second partition can be improved, so that the second partition is not easily damaged, thereby extending the service life of the second tube body.

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

[0040] By adopting the above scheme, each second heat dissipation groove is enclosed with the inner wall surface of the second tube body to form a third heat dissipation channel, so 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 tube body, so that the wire core is dispersed in the outer circle of the second tube body around the central axis of the second tube body; the wire core in the third heat dissipation channel can contact the second tube body, and heat is exchanged with the air in the space outside the second tube body with the help of the second tube body, which helps to improve the heat dissipation efficiency of the wire core.

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

[0042] By adopting the above solution, if water droplets are carried in the airflow, the waterproof structure can intercept the water droplets to prevent water from entering the cable.

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

[0044] By adopting the above solution, the waterproof breathable valve can block water drops to prevent water from entering the cable.

[0045] In some implementations, the charging gun body has an air inlet and an air outlet connected to the air inlet channel, and the air outlet is connected to the first heat dissipation channel; the waterproof structure includes multiple water vapor baffles, and the multiple water vapor baffles are arranged in the air inlet channel. On the projection plane perpendicular to the distribution direction of the air inlet and the air outlet, the positive projections of adjacent water vapor baffles overlap.

[0046] By adopting the above solution, the water vapor baffle and the air intake channel are combined to form a maze-like channel, which can effectively block water droplets.

[0047] To achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present application is: a charging device, including a charging pile and a charging gun of the above-mentioned first aspect embodiment, and the charging pile is electrically connected to the end of the cable connection sealing assembly.

[0048] The beneficial effect of the charging device provided in the present application is that by applying the charging gun of the first aspect embodiment mentioned above to the charging device, the heat dissipation efficiency of the charging device can be improved to extend the service life of the charging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0051] Figure 2 yes Figure 1 A schematic diagram of a portion of the internal structure of a charging gun body in the charging device shown;

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

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

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

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

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

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

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

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

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

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

[0062] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0063] It should be noted that when an element is referred to as being "fixed to" or "disposed 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" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0065] References to "one embodiment", "some embodiments" or "an embodiment" described in the specification of this application mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some other embodiments", "in some other embodiments", etc., which appear at different places in this specification, do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. In addition, in one or more embodiments, particular features, structures or characteristics may be combined in any suitable manner.

[0066] At present, car companies are accelerating the launch of high-voltage models, making fast charging and super charging a rigid demand for users. Super charging usually requires a maximum power of more than 600kW and a maximum current of more than 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 solution of the present application, a description is given below with reference to specific drawings and embodiments.

[0069] Please refer to Figures 1 to 5 An embodiment of the present application provides a charging gun 1, including a cable 11, a charging gun body 12, a sealing assembly 13 and a heat dissipation assembly 14.

[0070] The cable 11 has a core 111, which includes a first tube 1111 extending in a first direction and a bare wire 1112. The first tube 1111 has a plurality of first heat dissipation channels 11111 penetrating the first tube 1111 in the first direction, and at least one of the first heat dissipation channels 11111 contains a bare wire 1112. The charging gun body 12 is connected to the cable 11, and an air inlet channel 121 is provided on the charging gun body 12. The air inlet channel 121 is connected to the first heat dissipation channel 11111 and the external air inlet channel 121. The sealing component 13 is connected to the end of the cable 11 away from the charging gun body 12. The sealing component 13 is provided with an air outlet channel 131, and the air outlet channel 131 is connected to the first heat dissipation channel 11111 and the external air outlet channel 131. The heat dissipation component 14 is arranged on the sealing component 13, and the heat dissipation component 14 is used to drive 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 in the embodiment of the present application, the heat dissipation component 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, which can cool the bare wire 1112, thereby improving the heat dissipation efficiency of the bare wire 1112, so as to reduce the risk of damage to the cable 11 due to overheating, and extend the service life of the cable 11 and the charging gun 1.

[0072] Since the first tube body 1111 extends in the first direction and the first heat dissipation channel 11111 passes through the first tube body 1111 along the first direction, the wire core 111 can achieve full-path heat dissipation to improve the heat dissipation efficiency of the wire core 111, as well as the heat dissipation efficiency of the cable 11 and the charging gun 1 having the wire core 111 of the embodiment of the present application.

[0073] In addition, the air cooling used by the charging gun of the embodiment of the present application has lower cost than liquid cooling, and the charging gun is more convenient to assemble and repair. In this way, the embodiment of the present application can achieve heat dissipation of a higher power charging gun at a lower cost.

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

[0075] It should be noted that the first direction is the axial direction of the first tube body 1111. The central axis of the first tube body 1111 is parallel to the first direction. The specific direction of the first direction depends on the state of the first tube body 1111. For example, if the first tube body 1111 is straightened, the central axis of the first tube body 1111 is a straight line, and the first direction is a direction parallel to or approximately parallel to the straight line; if the first tube body 1111 is wound on a storage column, the central axis of the first tube body 1111 is a spiral line or a curve similar to a spiral line, and 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, there are multiple bare wires 1112, and the multiple bare wires 1112 are distributed in multiple first heat dissipation channels 11111, so that the bare wires 1112 are not easy to pile up together, so as to increase the contact area between the bare wires 1112 and the airflow, and help the bare wires 1112 to exchange heat with the airflow in the first heat dissipation channel 11111, thereby improving the heat dissipation efficiency of the bare wires 1112. Therefore, the wire core 111 of the embodiment of the present application has a high heat dissipation efficiency, which can improve the heat dissipation efficiency of the cable 11 and the charging gun 1 having the wire core 111 of the embodiment of the present application, so as to extend the service life of the cable 11 and the charging gun 1.

[0077] Please refer to Figure 5 In some implementations, each first heat dissipation channel 11111 contains a bare wire 1112 to disperse the bare wires 1112 as much as possible so that the bare wires 1112 are not easily piled up.

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

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

[0080] In the above embodiment, on the first aspect, the first partition 1113 can divide the space in the first tube body 1111 into a plurality of first heat dissipation channels 11111 , and on the second aspect, the first partition 1113 can also support the bare wire 1112 and limit the position of the bare wire 1112 .

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

[0082] In the above embodiment, each first partition 11131 is enclosed with the inner wall surface of the first tube body 1111 to form a first heat dissipation channel 11111, so the inner wall surface of the first heat dissipation channel 11111 is composed of the surface of the first partition 11131 facing the inner wall surface of the first tube body 1111 and a part of the inner wall surface of the first tube body 1111, so that the bare wire 1112 is dispersed in the outer circle of the first tube body 1111 along the circumference of the first tube body 1111; the bare wire 1112 in the first heat dissipation channel 11111 can contact the first tube body 1111, and exchange heat with the air in the space outside the first tube body 1111 with the help of the first tube body 1111, which helps to improve the heat dissipation efficiency of the bare wire 1112.

[0083] Furthermore, in the above embodiment, a second heat dissipation channel 11112 is formed between adjacent first partitions 11131 , which helps the bare wire 1112 to exchange heat with the airflow in the second heat dissipation channel 11112 , thereby improving the heat dissipation efficiency of the bare wire 1112 .

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

[0085] In some embodiments, a plurality of first partitions 11131 are connected to each other.

[0086] By adopting the above technical solution, the strength of the first partition 1113 can be improved, so that the first partition 1113 is not easily damaged, thereby extending the service life of the first tube body 1111.

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

[0088] In the above embodiment, the multiple first partitions 11131 are integrally formed to reduce the difficulty and cost of manufacturing the first tube body 1111 .

[0089] Please refer to Figure 5 and Figure 6 In some embodiments, the first partition 1113 is provided with a plurality of first heat dissipation grooves 11132 distributed at intervals along the circumference of the first tube body 1111. The first heat dissipation grooves 11132 extend along the first direction and penetrate the first partition 1113. The inner wall surface of the first tube body 1111 covers the notch of the first heat dissipation grooves 11132, and the inner wall surface of the first tube body 1111 and the first heat dissipation grooves 11132 are enclosed to form a first heat dissipation channel 11111.

[0090] In the above embodiment, each first heat dissipation groove 11132 is enclosed with the inner wall surface of the first tube body 1111 to form a first heat dissipation channel 11111, so the inner wall surface of the first heat dissipation channel 11111 is composed of the inner wall surface of the first heat dissipation groove 11132 and a part of the inner wall surface of the first tube body 1111, so that the bare wire 1112 is dispersed in the outer circle of the first tube body 1111 along the circumference of the first tube body 1111; the bare wire 1112 in the first heat dissipation channel 11111 can contact the first tube body 1111, and exchange heat with the air in the space outside the first tube body 1111 with the help of the first tube body 1111, which helps to improve the heat dissipation efficiency of the bare wire 1112.

[0091] Optionally, the inner wall surface of the first heat dissipation slot 11132 may include a plurality of planes connected in sequence at an angle (eg Figure 5 ); the inner wall surface of the first heat dissipation groove 11132 may also be a curved surface (for example Figure 6 ).

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

[0093] In the above embodiment, the first connecting terminal 122 is connected to the wire core 111, which can increase the strength of the end of the wire core 111, so as to reduce the risk of airflow being difficult to enter the first heat dissipation channel 11111 due to deformation of the end of the wire core 111, and 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 connection terminal 122 includes a first connection part 1222 and a first air inlet part 1223. The first connection part 1222 is a structure with one end open and the other end closed, and the first air inlet part 1223 is a structure with both ends open. The wire core 111 is inserted into the first connection part 1222 through the open end of the first connection part 1222, and the bare wire 1112 in the wire core 111 is passed through the sealed end of the first connection part 1222 and is electrically connected to the electrical connection terminal 124 in the charging gun body 12. The opening at one end of the first air inlet part 1223 is connected to the space in the first connection part 1222, so that the first air inlet part 1223 and the space in the first connection part 1222 form the first air flow channel 1221.

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

[0096] In some embodiments, the cable 11 has multiple cores 111 , and the multiple cores 111 are connected to the same first connection terminal 122 , so that a first airflow channel 1221 can be connected to the first heat dissipation channels 11111 in the multiple cores 111 .

[0097] Please refer to Figure 3 In some embodiments, the wire cores 111 are connected to the first connection terminals 122 in a one-to-one correspondence.

[0098] By adopting the above solution, when there are multiple wire cores 111 in the cable 11 , the airflow in the air inlet channel 121 can be dispersed into each wire core 111 more evenly.

[0099] Please refer to Figure 2 In some embodiments, the charging gun body 12 also includes a shell 123, the shell 123 has an air inlet cavity 1212 and an air inlet port 1211, the air inlet port 1211 connects the air inlet cavity 1212 and the outside, the first connection terminal 122 is accommodated in the air inlet cavity 1212, and the air inlet port 1211, the air inlet cavity 1212 and the first air flow channel 1221 constitute the air inlet channel 121.

[0100] In the above embodiment, there are multiple wire cores 111 in the cable 11, the charging gun body 12 includes multiple first connection terminals 122, and when the first connection terminals 122 are connected to the wire cores 111 in a one-to-one correspondence, the first airflow channels 1221 can be interconnected through the air inlet cavity 1212 to balance the airflow velocity in the first heat dissipation channel 11111 in the multiple wire cores 111, thereby balancing the heat dissipation efficiency of the multiple wire cores 111. When the airflow flows through the air inlet cavity 1212, it can exchange heat with the housing 123 to reduce the temperature of the housing 123 and the electrical components in the housing 123.

[0101] In the above embodiment, the first air flow channel 1221 is connected to the outside through the air inlet 1211 and the air inlet cavity 1212 .

[0102] Please refer to Figure 2 In some embodiments, the housing 123 is structured to form a gun body 1231 and a gun head 1232 of the charging gun body 12, the air inlet cavity 1212 is disposed in the gun body 1231, and a receiving cavity 12321 communicating with the air inlet cavity 1212 is disposed in the gun head 1232, and an air inlet port 1211 is formed at the connection between the air inlet cavity 1212 and the receiving cavity 12321. The charging gun body 12 also includes an electrical connection terminal 124, which is passed through the air inlet port 1211, so that one end of the electrical connection terminal 124 is electrically connected to the bare wire 1112 in the wire core 111 in the air inlet cavity 1212, and the other end of the electrical connection terminal 124 is located in the receiving cavity 12321. When the charging gun body 12 is plugged into a vehicle, the gun head 1232 is plugged into the charging port on the vehicle, and the electrical connection terminal 124 is electrically connected to the pin on the vehicle.

[0103] Please refer to Figure 2 In some embodiments, an air inlet 1211 is provided on the gun body 1231 .

[0104] Please refer to Figure 3 In some embodiments, the sealing assembly 13 includes a second connecting terminal 132, which is connected to the wire core 111. The second connecting terminal 132 has a second air flow channel 1321 therein, one end of the second air flow channel 1321 is connected to the first heat dissipation channel 11111, and the other end of the second air flow channel 1321 is connected to the outside.

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

[0106] Please refer to Figure 3 The second connection terminal 132 includes a second connection portion 1322 and a second air inlet portion 1323. The second connection portion 1322 is a structure with one end open and the other end closed, and the second air inlet portion 1323 is a structure with both ends open. The wire core 111 is inserted into the second connection portion 1322 through the open end of the second connection portion 1322. The opening at one end of the second air inlet portion 1323 is connected to the space in the second connection portion 1322, so that the space in the second air inlet portion 1323 and the second connection portion 1322 form a second air flow channel 1321.

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

[0108] In some embodiments, the second connection portion 1322 and the second connection portion 1322 are formed in two parts.

[0109] In some embodiments, the plurality of wire cores 111 are connected to the same second connection terminal 132 , so that one second air flow channel 1321 can be in communication with the first heat dissipation channel 11111 in the plurality of wire cores 111 .

[0110] Please refer to Figure 3 In some embodiments, the second connection terminal 132 is connected to the wire core 111 in a one-to-one correspondence, and the heat dissipation assembly 14 includes an air pump 141, which is disposed in the second air flow channel 1321, or the air pump 141 is connected to an end of the second air flow channel 1321 that is away from the first heat dissipation channel 11111.

[0111] In the above embodiment, an air pump 141, a second connecting terminal 132 and a wire core 111 can form an independent airflow system, that is, each wire core 111 has an air pump 141 to drive the airflow in the wire core 111 to improve the heat dissipation efficiency of the wire core 111.

[0112] Please refer to Figure 3 In some embodiments, one end of the wire core 111 is connected to the first connection terminal 122 in a one-to-one correspondence, and the other end of the wire core 111 is connected to the second connection terminal 132 in a one-to-one correspondence, and the air pump 141 is disposed in the second air flow channel 1321 in the second connection terminal 132, or the air pump 141 is connected to one end of the second air flow channel 1321 away from the first heat dissipation channel 11111. Thus, an air pump 141, a second connection terminal 132, a wire core 111 and a first connection terminal 122 can form an independent air flow system to improve the heat dissipation efficiency of the wire core 111.

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

[0114] For example, see Figure 3 In some embodiments, the sealing assembly 13 only includes the second connecting terminal 132 , and the second air flow channel 1321 in the second connecting terminal 132 constitutes the above-mentioned air outlet channel 131 .

[0115] For example, see Figure 4In some embodiments, the sealing assembly 13 includes a connector 133 and a plurality of second connection terminals 132, the connector 133 is provided with an exhaust cavity 1331 and an exhaust port connected to the exhaust cavity 1331, and the second connection terminal 132 is accommodated in the exhaust cavity 1331, and the second air flow channel 1321 in the second connection terminal 132, the exhaust cavity 1331 and the exhaust port constitute the above-mentioned air outlet channel 131. And the air pump 141 is arranged at the exhaust port or the air pump 141 is connected to the exhaust port. The plurality of second air flow channels 1321 are connected to each other through the exhaust cavity 1331, and one air pump 141 can simultaneously drive the air flow in a plurality of wire cores 111 to reduce costs.

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

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

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

[0119] Please refer to Fig. 9 (The first partition 1113 in the first tube body 1111 is not shown), in some embodiments, the second tube body 112 has a plurality of third heat dissipation channels 1121 that penetrate the second tube body 112 along the first direction, at least one third heat dissipation channel 1121 accommodates a wire core 111, and the third heat dissipation channels 1121 are respectively connected to the air inlet channel 121 and the air outlet channel 131, and the heat dissipation assembly 14 is used to drive the airflow to flow through the air inlet channel 121, the third heat dissipation channel 1121 in the cable 11, and the air outlet channel 131 in sequence.

[0120] In the above embodiment, the heat dissipation component 14 drives the gas to flow through the air inlet channel 121, the third heat dissipation channel 1121 in the cable 11 and the air outlet channel 131 in sequence, which can cool the wire core 111, thereby improving the heat dissipation efficiency of the wire core 111, so as to reduce the risk of damage to the cable 11 due to overheating, thereby extending the service life of the cable 11 and the charging gun 1.

[0121] Since the second tube body 112 extends in the first direction and the third heat dissipation channel 1121 penetrates the second tube body 112 along the first direction, the cable 11 can achieve full-path heat dissipation to improve the heat dissipation efficiency of the cable 11 and the heat dissipation efficiency of the charging gun 1 having the cable 11 according to the embodiment of the present application.

[0122] Please refer to Figure 1 and Figure 2 In some embodiments, the cable 11 is plugged into the gun body 1231, and the second tube 112 is connected to the air inlet cavity 1212 in the gun body 1231, so that the third heat dissipation channel 1121 is connected to the air inlet channel 121. Driven by the heat dissipation component 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 component 13 includes a connector 133 and a plurality of second connection terminals 132, the second tube 112 is plugged into the connector 133, and the second tube 112 is connected to the exhaust cavity 1331 in the connector 133, so that the third heat dissipation channel 1121 is connected to the air outlet channel 131. Driven by the heat dissipation component 14, the airflow can flow through the third heat dissipation channel 1121 to the exhaust cavity 1331, and then be discharged through the exhaust port.

[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, two cores 111 are provided, one core 111 is used to connect to the positive core of the positive pole of the charging pile 2, and the other core 111 is used to connect to the negative core of the negative pole of the charging pile 2. In addition, some cores may be signal wires of the charging gun.

[0126] For example, in some embodiments, there are three wire cores 111, one of which is a live wire for connecting to the positive wire core of the positive pole of the charging pile 2, one is a neutral wire for connecting to the negative wire core of the negative pole of the charging pile 2, and one is a ground wire for grounding.

[0127] It should be noted that the second tube 112 is an insulating sheath in the cable.

[0128] Please refer to Fig. 9(The first partition 1113 in the first tube 1111 is not shown). In some implementations, there are multiple wire cores 111, and the multiple wire cores 111 are distributed in multiple third heat dissipation channels 1121, so that the wire cores 111 are not easy to pile up together, so as to increase the contact area between the wire core 111 and the airflow, and help the wire core 111 to exchange heat with the airflow in the third heat dissipation channel 1121, so as to improve the heat dissipation efficiency of the wire core 111. Therefore, the cable 11 of the embodiment of the present application has a higher heat dissipation efficiency, which can improve the heat dissipation efficiency of the cable 11 and the charging gun 1 having the embodiment of the present application, so as to extend the service life of the cable 11 and the charging gun 1.

[0129] Please refer to Fig. 9 (The first partition 1113 in the first tube body 1111 is not shown). In some implementations, each third heat dissipation channel 1121 contains a wire core 111 to disperse the wire core 111 as much as possible so that the wire core 111 is not easily piled up.

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

[0131] Please refer to Fig. 9 (The first partition 1113 in the first tube body 1111 is not shown), in some embodiments, a second partition 113 is provided in the second tube body 112, the second partition 113 is connected to the second tube body 112, and the second partition 113 and the inner wall surface of the second tube body 112 are enclosed to form a plurality of third heat dissipation channels 1121.

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

[0133] Please refer to Fig.11(The first partition 1113 in the first tube body 1111 is not shown), in some embodiments, the second partition 113 includes a plurality of second partitions 1131, and the plurality of second partitions 1131 are distributed at intervals along the circumference of the second tube body 112, the second partitions 1131 extend along the first direction, and each second partition 1131 is enclosed with the inner wall surface of the second tube body 112 to form a third heat dissipation channel 1121, and a fourth heat dissipation channel 1122 is formed between adjacent second partitions 1131, and the fourth heat dissipation channel 1122 is respectively connected to the air inlet channel 121 and the air outlet channel 131, and the heat dissipation assembly 14 is used 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 embodiment, each second partition 1131 is enclosed with the inner wall surface of the second tube body 112 to form the third heat dissipation channel 1121, so the inner wall surface of the third heat dissipation channel 1121 is composed of the surface of the second partition 1131 facing the inner wall surface of the second tube body 112 and a part of the inner wall surface of the second tube body 112, so that the wire core 111 is dispersed in the outer circle of the second tube body 112 along the circumference of the second tube body 112; so that the wire core 111 in the third heat dissipation channel 1121 can contact the second tube body 112, and exchange heat with the air in the space outside the second tube body 112 with the help of the second tube body 112, which helps to improve the heat dissipation efficiency of the wire core 111.

[0135] Furthermore, in the above embodiment, the fourth heat dissipation channel 1122 is formed between adjacent second partitions 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 1131 facing the inner wall of the second tube 112 may include a plurality of planes connected in sequence at an angle (for example Fig.11 ); The surface of the second partition portion 1131 facing the inner wall of the second tube body 112 may also be a curved surface.

[0137] In some embodiments, a plurality of second partitions 1131 are connected to each other.

[0138] By adopting the above technical solution, the strength of the second partition 113 can be improved, so that the second partition 113 is not easily damaged, thereby extending the service life of the second tube body 112.

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

[0140] In the above embodiment, the plurality of second partitions 1131 are integrally formed to reduce the difficulty and cost of manufacturing the second tube body 112 .

[0141] Please refer to Fig. 9 and Fig.10 In some embodiments, the second partition 113 is provided with a plurality of second heat dissipation grooves 1132 distributed at intervals along the circumference of the second tube body 112, the second heat dissipation grooves 1132 extend along the first direction and penetrate the second partition 113, the inner wall surface of the second tube body 112 covers the notch of the second heat dissipation grooves 1132, and the inner wall surface of the second tube body 112 and the second heat dissipation grooves 1132 are enclosed to form a third heat dissipation channel 1121.

[0142] In the above embodiment, each second heat dissipation groove 1132 is enclosed with the inner wall surface of the second tube body 112 to form the third heat dissipation channel 1121, so the inner wall surface of the third heat dissipation channel 1121 is composed of the inner wall surface of the second heat dissipation groove 1132 and part of the inner wall surface of the second tube body 112, so that the wire core 111 is dispersed in the outer circle of the second tube body 112 along the circumferential direction of the second tube body 112; so that the wire core 111 in the third heat dissipation channel 1121 can contact the second tube body 112, and exchange heat with the air in the space outside the second tube body 112 with the help of the second tube 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 slot 1132 may include a plurality of planes connected in sequence at an angle (eg Fig. 9 ); the inner wall surface of the second heat dissipation groove 1132 may also be a curved surface (for example Fig.10 ).

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

[0145] Through the above arrangement, if water droplets are carried in the airflow, the waterproof structure 125 can intercept the water droplets to prevent the cable 11 from being infiltrated with water.

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

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

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

[0149] Please refer to Fig.12 In some embodiments, the charging gun body 12 has an air inlet 1211 and an air outlet 1213 connected to the air inlet channel 121, and the air outlet 1213 is connected to the first heat dissipation channel 11111 (not shown in the figure, refer to Figure 2 , wherein the air outlet 1213 is formed at Figure 2 The waterproof structure 125 includes a plurality of water vapor baffles 1251, and the plurality of water vapor baffles 1251 are arranged in the air inlet channel 121. On the projection surface perpendicular to the distribution direction of the air inlet 1211 and the air outlet 1213, the orthographic projections of adjacent water vapor baffles 1251 partially overlap.

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

[0151] It should be noted that Fig.12 The shape, quantity and arrangement of the water vapor baffle 1251 shown is only one of the implementations in this scheme. The shape, quantity and arrangement of the water vapor baffle 1251 can be designed according to needs as long as it can achieve the effect of blocking water droplets.

[0152] Please refer to Figure 1 An embodiment of the present application provides a charging device, including a charging pile 2 and a charging gun 1 of the first embodiment described above, wherein the charging pile 2 is electrically connected to an end of a sealing assembly 13 connected to a cable 11 .

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

[0154] Please refer to Figure 1 In some embodiments, the charging pile 2 includes a power supply component 21 , and the bare wire 1112 is passed through the heat dissipation component 14 and is electrically connected to the power supply component 21 .

[0155] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A charging gun, characterized in that: include: A cable, comprising a wire core, wherein the wire core comprises a first tube body extending in a first direction and a bare wire, wherein the first tube body has a plurality of first heat dissipation channels penetrating the first tube body along the first direction, and at least one of the first heat dissipation channels contains the bare wire; A charging gun body connected to the cable, wherein an air inlet channel is provided on the charging gun body, and the air inlet channel is connected to the first heat dissipation channel and the outside; a sealing assembly connected to an end of the cable away from the charging gun body, the sealing assembly being provided with an air outlet channel, the air outlet channel being in communication with the first heat dissipation channel and the outside; and A heat dissipation component is arranged on the sealing component, and the heat dissipation component is used to drive the gas to flow through the air inlet channel, the first heat dissipation channel in the cable, and the air outlet channel in sequence.

2. The charging gun according to claim 1, characterized in that: A first partition is disposed in the first tube body. The first partition is connected to the first tube body, and the first partition and the inner wall surface of the first tube body are enclosed to form a plurality of the first heat dissipation channels.

3. The charging gun according to claim 2, characterized in that: The first partition includes a plurality of first partitions, which are spaced apart along the circumference of the first tube body, extend along the first direction, and each of the first partitions is enclosed with the inner wall surface of the first tube body to form a first heat dissipation channel, and a second heat dissipation channel is formed between adjacent first partitions, the second heat dissipation channel is respectively connected to 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.

4. The charging gun according to claim 2, characterized in that: The first partition is provided with a plurality of first heat dissipation grooves spaced apart along the circumference of the first tube body, the first heat dissipation grooves extend along the first direction and penetrate the first partition, the inner wall surface of the first tube body covers the notch of the first heat dissipation grooves, and the inner wall surface of the first tube body and the first heat dissipation grooves enclose the first heat dissipation channel.

5. The charging gun according to any one of claims 1 to 4, characterized in that: The charging gun body includes a first connecting terminal, which is connected to the wire core. The first connecting terminal has a first airflow channel inside, one end of the first airflow channel is connected to the first heat dissipation channel, and the other end of the first airflow channel is connected to the outside.

6. The charging gun according to claim 5, characterized in that: The charging gun body also includes a shell, the shell has an air inlet cavity and an air inlet port, the air inlet port connects the air inlet cavity and the outside, the first connecting terminal is accommodated in the air inlet cavity, and the air inlet port, the air inlet cavity and the first air flow channel constitute the air inlet channel.

7. The charging gun according to any one of claims 1 to 6, characterized in that: The sealing assembly includes a second connecting terminal connected to the wire core, and a second air flow channel is formed in the second connecting terminal, one end of the second air flow channel is connected to the first heat dissipation channel, and the other end of the second air flow channel is connected to the outside.

8. The charging gun according to claim 7, characterized in that: The second connecting terminals are connected to the wire cores in a one-to-one correspondence, and the heat dissipation assembly further includes an air pump, which is disposed in the second air flow channel, or the air pump is connected to an end of the second air flow channel away from the first heat dissipation channel.

9. The charging gun according to any one of claims 1 to 8, characterized in that: A waterproof structure is arranged in the air inlet passage to intercept liquid entering the air inlet passage.

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

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