Cooling device for a charging gun and charging gun

Abstract

The application relates to a cooling device for a charging gun and the charging gun and belongs to the technical field of automobile charging guns. The cooling device for the charging gun comprises a cooling piece, an insulating piece and a connecting support, the cooling piece is communicated with a cooling pipeline, the insulating piece is arranged on the outer side of the cooling piece, the connecting support is connected with the cooling piece and a charging terminal respectively, the cooling piece is abutted with the charging terminal through the insulating piece, so that the heat of the charging terminal is transmitted to the cooling piece through the insulating piece, and the current transmission between the terminal and the cooling piece is isolated. The direct contact between the cooling piece and the connecting support is isolated through the insulating piece, and the insulation of the charging gun is effectively guaranteed.

Description

Technical Field

[0001] This application relates to the field of automotive charging gun technology, and more particularly to a cooling device for a charging gun and a charging gun. Background Technology

[0002] The daily use of electric vehicles is inseparable from charging, and the charging gun, as a key component connecting the electric vehicle and the charging station, plays a crucial role in the charging process. During charging, current flows through the charging gun, inevitably generating heat. Moreover, as the charging power of electric vehicles continues to increase to meet users' demands for fast charging, the current flowing through the charging gun is also increasing, resulting in even more heat generation. Therefore, a cooling device is needed to reduce the temperature of the charging gun.

[0003] The existing charging gun includes a charging terminal and a cooling device. The cooling device includes a cooling element and a cooling water channel inside the cooling element. The cooling water channel is connected to an external water pump. By attaching the charging terminal to the outside of the cooling element, the charging terminal and the water in the cooling water channel can exchange heat, thereby reducing the terminal temperature.

[0004] However, to ensure effective heat transfer, cooling components are typically made of metal or other thermally conductive materials. When a charging gun malfunctions and leaks electricity, the inherent conductivity of metal can cause the entire charging gun to become energized, posing a safety hazard. Utility Model Content

[0005] This application provides a cooling device for a charging gun. By providing an insulating element between the cooling element and the charging terminal, the leakage current from the charging terminal is prevented from being transmitted to the entire charging gun.

[0006] This application provides a cooling device for a charging gun, comprising:

[0007] A cooling component, the cooling component being connected to a cooling pipeline;

[0008] An insulating component, wherein the insulating component is disposed on the outside of the cooling component;

[0009] A connecting bracket is provided for connecting to the cooling component and the charging terminal respectively. The cooling component abuts against the charging terminal through the insulating component, so that the heat of the charging terminal is transferred to the cooling component through the insulating component, and the current transmission between the charging terminal and the cooling component is isolated.

[0010] In this embodiment of the application, the cooling component includes a metal cold pool, a cover plate, an inlet column and an outlet column, and a cooling chamber is provided inside the metal cold pool;

[0011] Both the inlet and outlet water columns are mounted on the cover plate, which covers the metal cold pool so that the cooling chamber is connected to the cooling pipeline through the inlet and outlet water columns.

[0012] In this embodiment of the application, a flow guide baffle is provided inside the cooling cavity, and the flow guide baffle divides the cooling cavity into a loop-shaped flow channel.

[0013] In this embodiment of the application, the insulating member is provided with two clearance holes, and the insulating member is provided with an insulating cavity in the middle.

[0014] The clearance hole communicates with the insulating cavity, the cooling component is disposed in the insulating cavity, and the water inlet column and water outlet column on the cooling component are respectively inserted into the corresponding clearance hole.

[0015] In this embodiment of the application, the connecting bracket is provided with a snap-fit ​​slot, and the charging terminal is snapped into the snap-fit ​​slot.

[0016] In this embodiment of the application, two snap-fit ​​members are arranged opposite to each other on the connecting bracket, and snap-fit ​​portions are provided on the opposite sidewalls of the insulating member. The two snap-fit ​​members snap onto the corresponding snap-fit ​​portions to fix the cooling member on the connecting bracket.

[0017] In this embodiment of the application, the insulating component, the connecting bracket, and the charging terminal are surrounded by a plastic body integrally formed by injection molding. The plastic body is used to reinforce the connection between the insulating component, the connecting bracket, and the charging terminal.

[0018] In this embodiment of the application, a sealing layer is provided between the metal cold pool and the cover plate.

[0019] In this embodiment, the outer surfaces of the inlet column and the outlet column are provided with pipe threads, and the inlet column and the outlet column are respectively connected to the cooling pipe through their respective pipe threads.

[0020] In a second aspect, a charging gun is also provided, comprising two charging components, each charging component including a charging terminal, a housing, and a cooling device for the charging gun as described in the first aspect, disposed on the charging terminal.

[0021] Both the cooling device and the charging terminal are located inside the housing, and there is a cavity between the housing and the cooling device, which is filled with sealant.

[0022] This application provides a cooling device and a charging gun for a charging gun, comprising a cooling component, an insulating component, and a connecting bracket. The cooling component is connected to a cooling pipe, and the insulating component is disposed on the outside of the cooling component. The connecting bracket is connected to both the cooling component and a charging terminal. The cooling component abuts against the charging terminal through the insulating component, allowing heat from the charging terminal to be transferred to the cooling component through the insulating component, and isolating current transmission between the terminal and the cooling component. The insulating component effectively ensures the insulation of the charging gun by isolating the direct contact between the cooling component and the connecting bracket. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0024] Figure 1 A schematic diagram of the cooling device for the charging gun provided in this application;

[0025] Figure 2 for Figure 1 Schematic diagram of the intercooler pool;

[0026] Figure 3 for Figure 1 Schematic diagram of the middle cover plate;

[0027] Figure 4 A schematic diagram of the structure of the insulating component of the cooling device for the charging gun provided in this application;

[0028] Figure 5 A schematic diagram of the connecting bracket for the cooling device of the charging gun provided in this application;

[0029] Figure 6 This is a schematic diagram of the charging gun.

[0030] Figure label:

[0031] 10 - Charging terminal;

[0032] 20 - Shell;

[0033] 30 - Cavity;

[0034] 100 - Cooling component; 110 - Metal cold pool; 111 - Cooling chamber; 120 - Cover plate; 130 - Water inlet column; 140 - Water outlet column; 150 - Pipe thread;

[0035] 200 - Insulating part; 210 - Clearance hole; 220 - Snap-fit ​​part;

[0036] 300 - Connecting bracket; 310 - Snap-in slot; 320 - Snap-in component.

[0037] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the application described herein can be implemented, for example, in orders other than those illustrated or described herein. In embodiments of this application, the words "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0040] In existing technologies, cooling devices mainly consist of a cooling component and a cooling water circuit inside the cooling component. The cooling water circuit is connected to an external water pump. During actual operation, the charging terminal is tightly attached to the outer surface of the cooling component, thus creating a heat transfer path. This allows the heat generated by the terminal to be transferred to the cooling component, and then the water flowing in the cooling water circuit exchanges heat with the cooling component, ultimately achieving the goal of reducing the terminal temperature.

[0041] However, it's important to note that to maximize the efficiency and effectiveness of this heat transfer, metal materials are often used in the manufacturing of the cooling components. The inherent high conductivity of metals presents a potential safety risk to the entire device. Specifically, if a fault occurs at the charging terminal and leakage occurs, the current will conduct along the metal cooling component, ultimately causing the entire charging gun to become energized. This undoubtedly poses a serious potential threat to the user's safety and the normal operation of the equipment.

[0042] This application provides a cooling device for a charging gun. By providing an insulating element between the cooling element and the charging terminal, it prevents leakage current from being transmitted to the entire charging gun. The embodiments of this application will be further described below with reference to the accompanying drawings.

[0043] in, Figure 1 This is a schematic diagram of the cooling device for the charging gun provided in this application. Figure 2 for Figure 1 Schematic diagram of the intermediate cooling tank. Figure 3 for Figure 1 A schematic diagram of the structure of the middle cover plate. Figure 4 A schematic diagram of the structure of the insulating component of the cooling device for the charging gun provided in this application. Figure 5 A schematic diagram of the connection bracket for the cooling device of the charging gun provided in this application.

[0044] Combination Figure 1-5 As shown, this application provides a cooling device for a charging gun, comprising:

[0045] Cooling component 100 is used to connect with cooling pipes.

[0046] Insulating element 200 is disposed on the outside of cooling element 100.

[0047] The connecting bracket 300 is used to connect to the cooling component 100 and the charging terminal 10 respectively. The cooling component 100 abuts against the charging terminal 10 through the insulating component 200 so that the heat of the charging terminal 10 is transferred to the cooling component 100 through the insulating component 200 and the current transmission between the terminal and the cooling component 100 is isolated.

[0048] The cooling component 100 is made of die-cast aluminum alloy and is connected to the cooling pipes. The coolant is a 50% ethylene glycol aqueous solution.

[0049] The insulating component 200 is made of a thermally conductive silicone sheet with a thickness of 2mm, which is wrapped around the outside of the cooling component 100.

[0050] The connecting bracket 300 is connected to the cooling component 100 and the charging terminal 10 by bolts.

[0051] The heat generated by the charging terminal 10 is conducted to the cooling component 100 through the insulating component 200, while the insulating component 200 simultaneously isolates the current between the terminal and the cooling component 100.

[0052] The insulation of the charging gun is effectively guaranteed by isolating the cooling component 100 from the connecting bracket 300 through the insulating component 200.

[0053] In this embodiment of the application, the cooling component 100 includes a metal cold pool 110, a cover plate 120, a water inlet column 130 and a water outlet column 140, and a cooling chamber 111 is provided inside the metal cold pool 110.

[0054] Both the inlet water column 130 and the outlet water column 140 are mounted on the cover plate 120, which covers the metal cold pool 110 so that the cooling chamber 111 is connected to the cooling pipeline through the inlet water column 130 and the outlet water column 140.

[0055] The metal cold pool 110 contains a cooling chamber 111, providing space for the coolant and ensuring sufficient heat exchange, thus improving overall heat dissipation. The cover plate 120 is made of 3mm thick aluminum plate and is fixed to the metal cold pool 110 by stainless steel countersunk screws or welding, facilitating both sealing of the cooling chamber 111 and subsequent maintenance and disassembly. The inlet column 130 and outlet column 140 are integrally machined onto the cover plate 120, with an outer diameter of 8mm and an inner diameter of 6mm, facilitating stable and reliable connection to external cooling pipes. This ensures smooth flow of coolant into and out of the cooling chamber 111, maintaining a stable heat exchange cycle and effectively reducing the temperature of the charging terminal 10.

[0056] The cooling chamber 111 has a regular shape, such as a cuboid or cube. In this embodiment, the cooling chamber 111 is cube-shaped. A large, regular water channel is carved out inside the cooling chamber to achieve uniform cooling capacity. The side length of the cooling chamber 111 is set to 50mm. This regular cube shape facilitates manufacturing. A 3mm thick flow guide baffle is installed inside, dividing the cooling chamber 111 into a loop-shaped flow channel. This loop-shaped flow channel lengthens the flow path of the coolant within the cooling chamber 111, increasing the contact time and area between the coolant and the walls of the cooling chamber 111. This promotes turbulence within the flow channel, significantly improving the heat exchange efficiency between the coolant and the walls of the cooling chamber 111. This, in turn, more effectively removes the heat transferred from the charging terminal 10, enhancing the overall cooling effect of the cooling device on the charging terminal 10.

[0057] like Figure 4 As shown in the embodiment of this application, the insulating member 200 is provided with two clearance holes 210, and the insulating member 200 is provided with an insulating cavity in the middle.

[0058] The clearance hole 210 is connected to the insulation cavity, and the cooling component 100 is disposed inside the insulation cavity. The water inlet column 130 and water outlet column 140 on the cooling component 100 are respectively inserted into the corresponding clearance hole 210.

[0059] The insulating component 200 is provided with a clearance hole 210 and an insulating cavity. The clearance hole 210 has a diameter of 10mm and an annular groove with a depth of 0.5mm on its inner wall for installing an O-ring seal. This effectively prevents coolant leakage from the gap between the inlet column 130 and the outlet column 140 and the clearance hole 210, ensuring the sealing performance of the cooling device. The insulating cavity has dimensions of 52mm × 52mm × 22mm and a gap of 1mm between it and the cooling component 100. The gap is filled with thermally conductive silicone grease, which ensures that the cooling component 100 can be smoothly installed in the insulating cavity and further reduces the resistance to heat transfer using the thermally conductive silicone grease. This allows the heat from the charging terminal 10 to be conducted to the cooling component 100 more efficiently through the insulating component 200. While ensuring insulation, the heat conduction path is optimized, and the heat dissipation performance is improved.

[0060] In this embodiment, the connecting bracket 300 is provided with a slot 310, and the charging terminal 10 is snapped into the slot 310.

[0061] The connecting bracket 300 is provided with a snap-fit ​​groove 310, which is arc-shaped. The inner diameter of the snap-fit ​​groove 310 is the same as the inner diameter of the charging terminal 10, so as to achieve a seamless connection between the charging terminal 10 and the snap-fit ​​groove 310. Through this snap-fit ​​structure, the charging terminal 10 can be easily and quickly snapped into the snap-fit ​​groove 310. While ensuring easy installation, it can also ensure the reliability of the connection under complex working conditions such as vibration, and prevent the charging terminal 10 from affecting the heat conduction and electrical connection stability due to loosening, thus ensuring the normal operation of the cooling device as a whole.

[0062] In this embodiment of the application, two snap-fit ​​pieces 320 are disposed opposite to each other on the connecting bracket 300, and snap-fit ​​portions are disposed on the opposite sidewalls of the insulating member. The two snap-fit ​​pieces snap onto the corresponding snap-fit ​​portions to fix the cooling member on the connecting bracket.

[0063] The connecting bracket 300 has two snap-fit ​​pieces 320 at its upper and lower ends. The snap-fit ​​pieces 320 have an L-shaped cross-section, and the insulating component 200 has a matching snap-fit ​​part 220. During assembly, the snap-fit ​​pieces 320 bend outwards. After reaching the designated position, the snap-fit ​​pieces 320 return to their original shape under their own elasticity, thus snapping onto the snap-fit ​​part 220 for fastening. This effectively prevents the insulating component 200 from shifting due to external vibrations, impacts, or other factors, thereby ensuring good contact between the cooling component 100 and the charging terminal 10 through the insulating component 200 and maintaining stable heat conduction and electrical insulation.

[0064] For example, two snap-fit ​​parts 320 are provided at the top and one snap-fit ​​part 320 is provided at the bottom. The insulating member 200 is provided with corresponding snap-fit ​​parts 220, so that the insulating member 200 has directionality during installation and it is easy to identify the installation direction.

[0065] In this embodiment, the insulating component 200, the connecting bracket 300 and the charging terminal 10 are surrounded by a plastic body integrally formed by injection molding. The plastic body is used to reinforce the connection between the insulating component 200, the connecting bracket 300 and the charging terminal 10.

[0066] The specific operation is as follows: the charging terminal 10 and the insulating component 200 with cooling component 100 are assembled on the connecting bracket 300, and then plastic is injected using a low-pressure injection molding machine to integrally mold them into a single plastic body. An insert injection molding process is used to achieve the integral molding of the cooling component 100, insulating component 200, connecting bracket 300, and charging terminal 10. This molding method enhances the overall structural integrity and stability of the entire device, avoiding problems such as component loosening and poor connection that may occur due to prolonged use. Simultaneously, the presence of the plastic coating layer further improves the electrical insulation performance, ensuring reliable operation of the device in complex environments.

[0067] In this embodiment of the application, a sealing layer is provided between the metal cold pool 110 and the cover plate 120.

[0068] The metal cold pool 110 and the cover plate 120 are fixed together by welding, and then a sealing layer is formed between the metal cold pool 110 and the cover plate 120 by brazing sealing process, thereby achieving the purpose of sealing. Alternatively, sealing components and adhesives can be used to seal the metal cold pool 110 and the cover plate 120.

[0069] For example, a sealing layer made of silicone is provided between the metal cold pool 110 and the cover plate 120. This sealing layer can effectively fill the tiny gaps between the metal cold pool 110 and the cover plate 120, preventing coolant leakage in the cooling chamber 111, ensuring that the coolant circulates in the enclosed space, guaranteeing the normal operation of the cooling system, and extending the service life of the cooling device.

[0070] In this embodiment, the outer surfaces of the inlet column 130 and the outlet column 140 are provided with pipe threads 150, and the inlet column 130 and the outlet column 140 are respectively connected to the cooling pipes through their respective pipe threads 150.

[0071] Both the inlet column 130 and the outlet column 140 have pipe threads 150 on their outer surfaces, which are used to engage with the internal threads on the cooling pipes for secure fastening. This threaded connection method and corresponding sealing measures make the connection between the inlet column 130 and the outlet column 140 and the cooling pipes more robust and reliable, effectively preventing loosening or leakage caused by factors such as coolant pressure and vibration during use. This ensures that the coolant can circulate stably between the cooling device and the external pipes, maintaining normal cooling function.

[0072] In this embodiment, the insulating element 200 includes a plastic element.

[0073] The plastic parts ensure the heat dissipation efficiency of the entire cooling device for the charging terminal 10, while reliably preventing current conduction, thus meeting the dual requirements of insulation and heat dissipation for the charging gun cooling device.

[0074] This application embodiment also provides a charging gun, including two charging components. Each charging component includes a charging terminal 10, a housing 20, and a cooling device disposed on the charging terminal 10.

[0075] The charging terminal 10 and the cooling device are both located inside the housing 20. There is a cavity 30 between the housing 20 and the cooling device, and the cavity 30 is filled with sealant.

[0076] Among them, the cavity 30 between the cooling device and the housing 20 is filled with sealant to prevent external leakage of the cooling device from affecting the external circuit and thus avoid insulation failure.

[0077] Furthermore, by potting glue into the cavity 30 between the cooling device and the housing 20, the problem of condensation forming on the charging terminal 10 and the surface of the cooling device due to low temperature during the operation of the charging gun can be solved. This condensation leakage can affect the external circuit and cause insulation failure.

[0078] This application provides a cooling device for a charging gun, comprising a cooling element 100, an insulating element 200, and a connecting bracket 300. The cooling element 100 is connected to a cooling pipe, the insulating element 200 is disposed on the outside of the cooling element 100, and the connecting bracket 300 is connected to both the cooling element 100 and a charging terminal 10. The cooling element 100 abuts against the charging terminal 10 through the insulating element 200, allowing heat from the charging terminal 10 to be transferred to the cooling element 100 through the insulating element 200, and isolating current transmission between the terminal and the cooling element 100. The insulating element 200 effectively ensures the insulation of the charging gun by isolating direct contact between the cooling element 100 and the connecting bracket 300.

[0079] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0080] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0081] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0082] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cooling device for a charging gun, characterized in that, include: A cooling element (100) is used to communicate with a cooling pipeline; An insulating element (200) is disposed on the outside of the cooling element (100); A connecting bracket (300) is used to connect to the cooling component (100) and the charging terminal (10) respectively. The cooling component (100) abuts against the charging terminal (10) through the insulating component (200) so that the heat of the charging terminal (10) is transferred to the cooling component (100) through the insulating component (200) and the current transmission between the charging terminal and the cooling component (100) is isolated.

2. The cooling device for a charging gun according to claim 1, characterized in that, The cooling component (100) includes a metal cold pool (110), a cover plate (120), a water inlet column (130) and a water outlet column (140), and a cooling chamber (111) is provided inside the metal cold pool (110). The inlet column (130) and the outlet column (140) are both mounted on the cover plate (120), which covers the metal cold pool (110) so that the cooling chamber (111) is connected to the cooling pipeline through the inlet column (130) and the outlet column (140).

3. The cooling device for a charging gun according to claim 2, characterized in that, A flow guide baffle is provided inside the cooling chamber (111), which divides the cooling chamber (111) into a loop-shaped flow channel.

4. The cooling device for a charging gun according to claim 2 or 3, characterized in that, The insulating component (200) is provided with two clearance holes (210), and the insulating component (200) is provided with an insulating cavity in the middle. The clearance hole (210) is connected to the insulating cavity, the cooling component (100) is disposed in the insulating cavity, and the water inlet column (130) and the water outlet column (140) on the cooling component (100) are respectively inserted into the corresponding clearance hole (210).

5. The cooling device for a charging gun according to any one of claims 1-3, characterized in that, The connecting bracket (300) is provided with a snap-fit ​​groove (310), and the charging terminal (10) is snapped into the snap-fit ​​groove (310).

6. The cooling device for a charging gun according to any one of claims 1-3, characterized in that, Two snap-fit ​​pieces (320) are arranged opposite each other on the connecting bracket (300), and snap-fit ​​portions (220) are provided on the opposite sidewalls of the insulating member (200). The two snap-fit ​​pieces (320) are snapped onto the corresponding snap-fit ​​portions (220) to fix the cooling member (100) on the connecting bracket (300).

7. The cooling device for a charging gun according to any one of claims 1-3, characterized in that, The insulating component (200), the connecting bracket (300), and the charging terminal (10) are surrounded by a plastic body integrally formed by injection molding. The plastic body is used to reinforce the connection between the insulating component (200), the connecting bracket (300), and the charging terminal (10).

8. The cooling device for a charging gun according to claim 2 or 3, characterized in that, A sealing layer is provided between the metal cold pool (110) and the cover plate (120).

9. The cooling device for a charging gun according to claim 2 or 3, characterized in that, The outer surfaces of the water inlet column (130) and the water outlet column (140) are provided with pipe threads (150), and the water inlet column (130) and the water outlet column (140) are respectively connected to the internal threads of the cooling pipeline through their respective pipe threads (150).

10. A charging gun, characterized in that, It includes two charging components, each of which includes a charging terminal (10), a housing (20), and a cooling device for a charging gun as described in any one of claims 1-9 disposed on the charging terminal (10); The charging terminal (10) and the cooling device are both disposed inside the housing (20), and there is a cavity (30) between the housing (20) and the cooling device, which is filled with sealant.

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