Liquid cooling device and fast charging pile

Abstract

The utility model relates to the field of liquid cooling devices of quick charging piles, and particularly discloses a liquid cooling device and a quick charging pile, and the liquid cooling device comprises a liquid storage tank, a liquid supply pump, a radiator, a liquid outlet module, a liquid inlet module and a heat insulation structure; the liquid supply pump is connected between the liquid storage tank and the liquid outlet module in series, the radiator is connected between the liquid inlet module and the liquid storage tank in series, the liquid outlet module is used for being connected with the cold plate liquid inlet, and the liquid inlet module is used for being connected with the cold plate liquid outlet. The heat insulation structure is arranged between the liquid inlet module and the liquid storage tank. Therefore, the risk of heat exchange between the liquid inlet module and the liquid storage tank is reduced, and the heat dissipation efficiency of the liquid cooling device on the quick charging pile is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat dissipation of fast-charging charging piles, and in particular to a liquid cooling device and a fast-charging charging pile. Background Art

[0002] With the rapid development of electric vehicles and the increasing demand for fast charging, the power range of fast charging piles is also increasing. However, about 5% of the electric energy of fast charging piles is converted into heat loss, resulting in huge heat generation of fast charging piles. However, the traditional heat dissipation structure for fast charging piles is air cooling, but the air volume heat dissipation structure has the defects of low heat dissipation efficiency, small heat dissipation and large heat dissipation noise, which obviously cannot meet the heat dissipation requirements of fast charging piles. In response to the above problems, a liquid cooling device is provided in the prior art, which is provided by arranging a liquid cooling plate in the fast charging pile, the liquid cooling plate is in direct contact with the heat generating functional components of the fast charging pile, the liquid cooling plate is closed-loop connected with an external or built-in liquid cooling device, and then a liquid cooling medium is passed through the liquid cooling plate, and the fast charging pile is efficiently cooled by the liquid cooling medium, thereby meeting the heat dissipation requirements of the fast charging pile.

[0003] However, the liquid cooling device in the prior art needs to meet the needs of high-power charging piles while also meeting the needs of miniaturization. This requires a compact layout of the various components of the liquid cooling device. The liquid inlet and outlet modules of some liquid cooling devices are arranged on the liquid storage structure, and the high-temperature cooling medium refluxed by the liquid cooling plate flows back to the heat dissipation structure of the liquid cooling device through the liquid inlet module. This leads to the risk of heat exchange of the liquid inlet module in the liquid storage structure, resulting in a reduction in the heat dissipation efficiency of the liquid cooling device for the fast charging pile.

[0004] Therefore, there are defects and deficiencies in the prior art, which need further improvement and development. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present application is to provide a liquid cooling device and a fast charging pile, aiming to solve the problem that during the miniaturization process of the liquid cooling device of the fast charging pile in the prior art, the heat dissipation efficiency of the liquid cooling device for the fast charging pile is reduced due to the risk of heat exchange between the liquid inlet module and the liquid storage structure.

[0006] The technical solution adopted by the present application to solve the technical problem is as follows: a liquid cooling device for heat dissipation of a fast charging pile, wherein the fast charging pile is provided with a liquid cooling plate, wherein the liquid cooling plate has a cold plate liquid inlet and a cold plate liquid outlet, and the liquid cooling device comprises:

[0007] Liquid storage tank, liquid supply pump, radiator, liquid outlet module, liquid inlet module and thermal insulation structure;

[0008] The liquid supply pump is connected in series between the liquid storage tank and the liquid outlet module, the radiator is connected in series between the liquid inlet module and the liquid storage tank, the liquid outlet module is used to connect the cold plate liquid inlet, and the liquid inlet module is used to connect the cold plate liquid outlet; the heat insulation structure is arranged between the liquid inlet module and the liquid storage tank.

[0009] Optionally, a first air-avoiding recessed groove is provided on the end surface of the liquid inlet module in contact with the heat insulation structure.

[0010] Optionally, the liquid inlet module comprises:

[0011] A liquid inlet module body, wherein the liquid inlet module body is provided with a liquid inlet channel, and the first air-avoiding sink is located on the end surface of the liquid inlet module body in contact with the heat insulation structure;

[0012] A plurality of liquid inlet ports, each of which is disposed on the liquid inlet module body and connected to the liquid inlet channel, and each of which is used to connect to the cold plate liquid outlet;

[0013] a first temperature-pressure integrated sensor, wherein the first temperature-pressure integrated sensor is disposed on the liquid inlet module body, and the first temperature-pressure integrated sensor is disposed in the liquid inlet channel;

[0014] Liquid inlet and outlet, a plurality of the liquid inlet and outlets are arranged on the liquid inlet module body and are connected to the liquid inlet channel, and the liquid inlet and outlets are used to connect to the radiator.

[0015] Optionally, the heat insulation structure also extends between the liquid outlet module and the liquid storage tank.

[0016] Optionally, a second air-avoiding sink groove is provided on the end surface of the liquid outlet module in contact with the heat insulation structure.

[0017] Optionally, the liquid outlet module comprises:

[0018] A liquid outlet module body, wherein the liquid outlet module body is provided with a liquid outlet channel, and the second air-avoiding sink is located on the end surface of the liquid outlet module body in contact with the heat insulation structure;

[0019] Liquid inlet and outlet, each of which is arranged on the liquid outlet module body and connected to the liquid outlet channel, and each of which is connected to the liquid supply pump;

[0020] a second temperature-pressure integrated sensor, wherein the second temperature-pressure integrated sensor is disposed on the liquid outlet module body, and the second temperature-pressure integrated sensor is disposed in the liquid outlet channel;

[0021] A plurality of liquid outlets are provided on the liquid outlet module body and are connected to the liquid outlet channel. The liquid outlets are used to connect to the liquid inlet of the cold plate.

[0022] Optionally, the liquid supply pump comprises a centrifugal pump or a gear pump;

[0023] The liquid storage tank includes a liquid storage tank body, a tank body liquid inlet, a defoaming liquid inlet pipe, a tank body liquid outlet and a liquid level sensor; the tank body liquid inlet is located at the upper end position of the liquid storage tank body in the height direction, and the tank body liquid inlet is connected to the radiator; the defoaming liquid inlet pipe is located in the liquid storage tank body and is connected to the tank body liquid inlet; the tank body liquid outlet is located at the lower end position of the liquid storage tank body in the height direction, and the tank body liquid outlet is connected to the liquid supply pump; the liquid level sensor is located on the liquid storage tank body and is used to detect the liquid level in the liquid storage tank body.

[0024] Optionally, the heat sink comprises:

[0025] A radiator body, the radiator body is connected to the liquid storage tank and the liquid inlet module, and the radiator body is configured as a harmonica tube structure;

[0026] A heat dissipation fan is arranged on the radiator body.

[0027] Optionally, the liquid cooling device further includes:

[0028] An electric control box, the electric control box comprising a sealed shell and a plurality of waterproof terminals arranged on the sealed shell;

[0029] A plurality of quick-insert connectors are respectively arranged on the liquid supply pump, the liquid outlet module and the liquid inlet module.

[0030] Another technical solution adopted by the present application to solve the technical problem is as follows: a fast charging pile, which includes the liquid cooling device as described above.

[0031] Beneficial effects:

[0032] By arranging the heat insulation structure between the liquid inlet module and the liquid storage tank, the risk of heat exchange between the liquid inlet module and the liquid storage tank is reduced, and the heat dissipation efficiency of the liquid cooling device for the fast charging pile is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the three-dimensional structure of the liquid cooling device provided in this application;

[0034] Figure 2 is a three-dimensional structural schematic diagram of the liquid cooling device provided in the present application from another perspective;

[0035] Figure 3 is a three-dimensional structural schematic diagram of the liquid cooling device provided in the present application from another perspective;

[0036] Figure 4 is a front view of the liquid cooling device provided in the present application;

[0037] Figure 5 This application Figure 3 A schematic cross-sectional view along the Ⅰ-Ⅰ direction;

[0038] Figure 6 is a three-dimensional structural schematic diagram of the liquid cooling device provided in the present application from another perspective;

[0039] Figure 7 is a three-dimensional structural schematic diagram of the liquid cooling device provided in the present application from another perspective;

[0040] Figure 8 is another three-dimensional structural schematic diagram of the liquid cooling device provided in the present application;

[0041] Description of reference numerals:

[0042] 10. Liquid cooling device; 11. Liquid storage tank; 12. Liquid supply pump; 13. Radiator; 14. Liquid outlet module; 15. Liquid inlet module; 16. Heat insulation structure; 17. First air-proof trough; 18. Second air-proof trough; 111. Liquid storage box; 112. Liquid inlet of box; 113. Defoaming liquid inlet pipe; 114. Liquid outlet of box; 115. Liquid level sensor; 131. Radiator body; 132. Cooling fan; 141. Liquid outlet module body; 142. Liquid outlet inlet; 143. Second temperature-pressure integrated sensor; 145. Liquid outlet channel; 151. Liquid inlet module body; 152. Liquid inlet inlet; 153. First temperature-pressure integrated sensor; 154. Liquid inlet outlet; 191. Electric control box; 1911. Sealed housing; 1912. Waterproof terminal; 192. Quick connector. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] Please refer to Figure 1 to Figure 2 In the first embodiment of the present application, a liquid cooling device 10 is provided for heat dissipation of a fast charging pile. The fast charging pile is provided with a liquid cooling plate, and the liquid cooling plate has a cold plate liquid inlet and a cold plate liquid outlet. A low-temperature cooling medium enters the liquid cooling plate from the cold plate liquid inlet, and the low-temperature cooling medium exchanges heat with the fast charging pile through the liquid cooling plate, absorbs the heat of the fast charging pile, converts the low-temperature cooling medium into a high-temperature cooling medium, and then flows out from the cold plate liquid outlet. The liquid cooling device 10 in the present application is connected between the cold plate liquid inlet and the cold plate liquid outlet. The liquid cooling device 10 is used to cool the high-temperature cooling medium flowing out of the cold plate liquid outlet, and then dissipate the high-temperature cooling medium, and then supply the cooled low-temperature cooling medium into the liquid cooling plate through the cold plate liquid inlet. It should be noted that the cooling medium is provided by the liquid cooling device 10.

[0047] Please refer to Figure 1 to Figure 2The liquid cooling device 10 includes a liquid storage tank 11, a liquid supply pump 12, a radiator 13, a liquid outlet module 14, a liquid inlet module 15 and a heat insulation structure 16; the liquid storage tank 11 is used to store cooling medium; the liquid supply pump 12 is connected in series between the liquid storage tank 11 and the liquid outlet module 14, and the liquid supply pump 12 is used to provide flow power for the cooling medium; the radiator 13 is connected in series between the liquid inlet module 15 and the liquid storage tank 11, and the radiator 13 is used to dissipate heat from the high-temperature cooling medium; the liquid outlet module 1 4 is used to connect the liquid inlet of the cold plate, and the liquid outlet module 14 supplies the low-temperature cooling medium stored in the liquid storage tank 11 into the liquid cold plate through the cold plate liquid inlet; the liquid inlet module 15 is used to connect the cold plate liquid outlet; the heat insulation structure 16 is arranged between the liquid inlet module 15 and the liquid storage tank 11, and then the risk of heat exchange between the liquid inlet module 15 and the liquid storage tank 11 is reduced by the heat insulation structure 16, and the heat dissipation efficiency of the liquid cooling device 10 to the fast charging pile is further improved.

[0048] Please refer to Figure 1 to Figure 2 In some embodiments, after the high-temperature cooling medium flows out from the liquid outlet of the cold plate, it first enters the liquid inlet module 15, and then flows through the radiator 13. The high-temperature cooling medium exchanges heat with the radiator 13 to become a low-temperature cooling medium. The low-temperature cooling medium then enters the liquid storage tank 11, and the cooling medium then flows into the liquid supply pump 12. The liquid supply pump 12 provides power for the cooling medium and pumps the cooling medium into the liquid outlet module. The cooling medium then flows into the cold plate liquid inlet through the liquid outlet module 14, and the cycle is repeated, thereby continuously completing the cyclic heat dissipation of the fast charging pile, thereby improving the heat dissipation efficiency of the liquid cooling device 10 for the fast charging pile.

[0049] Please refer to Figure 1 to Figure 2 In some embodiments, a first air-avoiding groove 17 is provided on the end surface where the liquid inlet module 15 contacts the thermal insulation structure 16, thereby reducing the contact area between the liquid inlet module 15 and the thermal insulation structure 16, further reducing the risk of heat exchange between the liquid inlet module 15 and the liquid storage tank 11, and further improving the heat dissipation efficiency of the liquid cooling device 10 for the fast charging pile.

[0050] Please refer to Figures 1 to 3In some embodiments, the liquid inlet module 15 includes a liquid inlet module body 151, a first temperature and pressure integrated sensor 153, a liquid inlet outlet 154 and a plurality of liquid inlet inlets 152, and a liquid inlet channel is provided in the liquid inlet module body 151, and the liquid inlet channel is used to introduce the high-temperature cooling medium into the liquid inlet module body 151; the first air-avoiding sink 17 is located on the end surface of the liquid inlet module body 151 in contact with the insulation structure 16, thereby reducing the contact area between the liquid inlet module 15 and the insulation structure 16, and further reducing the liquid inlet module 15 and the insulation structure 16. The risk of heat exchange between the liquid storage tanks 11 is further improved, and the heat dissipation efficiency of the liquid cooling device 10 for the fast charging pile is further improved; several of the liquid inlet ports 152 are arranged on the liquid inlet module body 151, and several of the liquid inlet ports 152 are connected to the liquid inlet channel, and several of the liquid inlet ports 152 are used to connect to the cold plate outlet, thereby increasing the flow rate of the high-temperature cooling medium flowing into the liquid inlet module body 151, avoiding the high-temperature cooling medium from being retained in the liquid cooling plate, thereby greatly improving the heat dissipation efficiency of the liquid cooling device 10 for the fast charging pile. The first temperature-pressure integrated sensor 153 is arranged on the liquid inlet module body 151, and the first temperature-pressure integrated sensor 153 is arranged in the liquid inlet channel; the first temperature-pressure integrated sensor 153 is used to measure the temperature and pressure of the high-temperature cooling medium in the liquid inlet module body 151; a plurality of liquid inlet outlets 154 are arranged on the liquid inlet module body 151, and a plurality of liquid inlet outlets 154 are connected to the liquid inlet channel, and the liquid inlet outlets 154 are used to connect the radiator 13, so that the liquid cooling device 10 can complete the effective transportation of the high-temperature cooling medium from the cold plate liquid outlet to the radiator 13, greatly reducing the flow resistance of the high-temperature cooling medium, and monitoring the temperature and pressure of the high-temperature cooling medium through the temperature-pressure integrated sensor, thereby ensuring the safety and reliability of the circulation of the high-temperature cooling medium.

[0051] Please refer to Figures 1 to 3 In some embodiments, the thermal insulation structure 16 also extends between the liquid outlet module 14 and the liquid storage tank 11, thereby further reducing the heat conduction between the liquid outlet module 14 and the liquid storage tank 11, and protecting the low-temperature cooling medium in the liquid storage tank 11 from being affected by the high-temperature cooling medium in the liquid outlet module 14.

[0052] Please refer to Figures 1 to 3 In some embodiments, a second air-avoiding groove 18 is provided on the end surface of the liquid outlet module 14 that contacts the thermal insulation structure 16, thereby reducing heat conduction between the liquid outlet module 14 and the thermal insulation structure 16, further improving the thermal insulation effect, and protecting the low-temperature cooling medium in the liquid storage tank 11 from being affected by the high-temperature cooling medium in the liquid outlet module 14.

[0053] Please refer to Figures 1 to 3 In some embodiments, the liquid outlet module 14 includes a liquid outlet module body 141, a liquid outlet inlet 142, a second temperature-pressure integrated sensor 143 and a plurality of liquid outlets; a liquid outlet channel 145 is provided in the liquid outlet module body 141, and the second air-avoiding sink 18 is located on the end surface of the liquid outlet module body 141 in contact with the heat insulation structure 16, thereby reducing the heat conduction between the liquid inlet module 15 and the heat insulation structure 16, further improving the heat insulation effect, and reducing the influence of heat on the liquid storage tank 11; the liquid outlet inlet 142 is provided on the liquid outlet module body 141, and the liquid outlet inlet 142 is connected to the liquid outlet channel 145, and the liquid outlet inlet 142 is connected to the liquid supply pump 12; the second temperature-pressure integrated sensor The device 143 is arranged on the liquid outlet module body 141, and the second temperature-pressure integrated sensor 143 is used to measure the temperature and pressure of the cooling medium in the liquid outlet module body 141, and the second temperature-pressure integrated sensor 143 is arranged in the liquid outlet channel 145; several of the liquid outlets are arranged on the liquid outlet module body 141, and several of the liquid outlets are connected to the liquid outlet channel 145, and the liquid outlets are used to connect the cold plate liquid inlet, thereby ensuring the transportation of the low-temperature cooling medium from the liquid storage tank 11 to the cold plate liquid inlet, greatly reducing the flow resistance of the low-temperature cooling medium, and monitoring the temperature and pressure of the cooling medium through the second temperature-pressure integrated sensor 143, ensuring the safety and reliability of the low-temperature cooling medium circulation.

[0054] Please refer to Figures 1 to 4In some embodiments, the liquid supply pump 12 includes a centrifugal pump, or the liquid supply pump 12 includes a gear pump, and different low-temperature heat dissipation media can be selected according to different heat dissipation conditions of the fast charging pile, thereby further improving the practicality and heat dissipation efficiency of the liquid cooling device 10 of the present application. The liquid storage tank 11 includes a liquid storage tank body 111, a tank body liquid inlet 112, a defoaming liquid inlet pipe 113, a tank body liquid outlet 114 and a liquid level sensor 115; the liquid storage tank body 111 is used to store cooling medium, the tank body liquid inlet 112 is located at the upper end position of the liquid storage tank body 111 along the height direction, the tank body liquid inlet 112 is connected to the radiator 13, the tank body liquid outlet 114 is located at the lower end position of the liquid storage tank body 111 along the height direction, and the tank body liquid outlet 114 is connected to the liquid supply pump 12, thereby realizing that the cooling medium enters from the top of the liquid storage tank body 111 and flows out from the bottom of the liquid storage tank body 111 , so that the flow of the cooling medium complies with the principles of thermodynamics, further ensuring uniform heat distribution; the defoaming liquid inlet pipe 113 is located in the liquid storage tank 111, and the defoaming liquid inlet pipe 113 is connected to the tank liquid inlet 112, and the defoaming liquid inlet pipe 113 is used to eliminate bubbles of the cooling medium flowing into the liquid storage tank 111, so as to prevent the bubbles from damaging the liquid supply pump 12, thereby improving the cooling medium transportation efficiency; the liquid level sensor 115 is located on the liquid storage tank 111, and is used to detect the liquid level in the liquid storage tank 111, so as to monitor the liquid level in the liquid storage tank 11 in real time, and ensure the normal operation of the liquid cooling device 10.

[0055] Please refer to Figure 4 In some embodiments, the defoaming liquid inlet pipe 113 is made of stainless steel, thereby preventing the defoaming liquid inlet pipe 113 from being corroded by the cooling medium, thereby extending the service life of the defoaming liquid inlet pipe 113.

[0056] Please refer to Figures 5 and 6 In some embodiments, the radiator 13 includes a radiator body 131 and a cooling fan 132. The radiator body 131 is connected to the liquid storage tank 11 and the liquid inlet module 15. The radiator body 131 is configured as a harmonica tube structure. The cooling fan 132 is disposed on the radiator body 131, thereby greatly improving the heat dissipation efficiency of the liquid cooling device 10, ensuring that the cooling medium is fully cooled during the circulation process, and can withstand higher liquid pressure, thereby ensuring the safe operation of the liquid cooling device 10.

[0057] Please refer to Figure 7In some embodiments, the liquid cooling device 10 further includes an electrical control box 191 and a plurality of quick-plug connectors 192, wherein the electrical control box 191 includes a sealed shell 1911, and the electrical control box 191 further includes a plurality of waterproof terminals 1912 disposed on the sealed shell 1911; the plurality of quick-plug connectors 192 are respectively disposed on the liquid supply pump 12, the liquid outlet module 14, and the liquid inlet module 15, thereby facilitating the control and electrical connection of the liquid cooling device 10 and improving the usability and maintainability of the liquid cooling device 10.

[0058] Please refer to Figures 1 to 6 In some embodiments, the liquid cooling device 10 also includes the outer frame box, the outer frame box is divided into a heat dissipation area and a control area, the electric control box 191 is arranged in the control area, and the liquid storage tank 11, the liquid supply pump 12, the radiator 13, the liquid outlet module 14, the liquid inlet module 15, the first air-avoiding trough 17, the second air-avoiding trough 18 and the insulation structure 16 are all arranged in the heat dissipation area, thereby facilitating the production, assembly and maintenance of the liquid cooling device 10, and improving the production efficiency and maintainability of the liquid cooling device 10.

[0059] Please refer to Figure 1 and Figure 8 In some embodiments, the centrifugal pump or the gear pump is arranged below the liquid storage tank 11, and a mounting hole is arranged at the bottom of the gear pump, which is fixed to the outer frame body by flat-head bolts; the gear pump is installed on the outer frame body by bolts welded on the front side of the outer frame body and by fixing the bolts and locking nuts, so that the centrifugal pump and the gear pump will not interfere with each other during installation, and different types of liquid supply pumps 12 can be installed through one outer frame body, thereby greatly reducing the production cost of the liquid cooling device 10.

[0060] In some embodiments, when silicone oil is selected as the cooling medium, the gear pump can be installed to provide power for the cooling medium of the liquid cooling device 10 , and when the cooling medium is ethylene glycol solution, the centrifugal pump can be installed to provide power for the cooling medium of the liquid cooling device 10 .

[0061] The second embodiment of the present application provides a fast charging pile, which includes the liquid cooling device provided in the first embodiment of the present application. It can be seen that the fast charging pile provided in this embodiment can ensure that a stable temperature can be maintained during fast charging, improve charging efficiency and service life, and provide users with a better charging experience.

[0062] In summary, the present application provides a liquid cooling device and a fast charging pile, wherein the liquid cooling device includes: a liquid storage tank, a liquid supply pump, a radiator, a liquid outlet module, a liquid inlet module and a heat insulation structure; the liquid supply pump is connected in series between the liquid storage tank and the liquid outlet module, the radiator is connected in series between the liquid inlet module and the liquid storage tank, the liquid outlet module is used to connect the cold plate liquid inlet, and the liquid inlet module is used to connect the cold plate liquid outlet; the heat insulation structure is arranged between the liquid inlet module and the liquid storage tank. This reduces the risk of heat exchange between the liquid inlet module and the liquid storage tank, and further improves the heat dissipation efficiency of the liquid cooling device for the fast charging pile.

[0063] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A liquid cooling device for heat dissipation of a fast charging pile, wherein the fast charging pile is provided with a liquid cooling plate, wherein the liquid cooling plate has a cold plate liquid inlet and a cold plate liquid outlet, and wherein: include: Liquid storage tank, liquid supply pump, radiator, liquid outlet module, liquid inlet module and thermal insulation structure; The liquid supply pump is connected in series between the liquid storage tank and the liquid outlet module, the radiator is connected in series between the liquid inlet module and the liquid storage tank, the liquid outlet module is used to connect the cold plate liquid inlet, and the liquid inlet module is used to connect the cold plate liquid outlet; the heat insulation structure is arranged between the liquid inlet module and the liquid storage tank.

2. The liquid cooling device according to claim 1, characterized in that: The end surface of the liquid inlet module in contact with the heat insulation structure is provided with a first air-avoiding sink groove.

3. The liquid cooling device according to claim 2, characterized in that: The liquid inlet module comprises: A liquid inlet module body, wherein the liquid inlet module body is provided with a liquid inlet channel, and the first air-avoiding sink is located on the end surface of the liquid inlet module body in contact with the heat insulation structure; A plurality of liquid inlet ports, each of which is disposed on the liquid inlet module body and connected to the liquid inlet channel, and each of which is used to connect to the cold plate liquid outlet; a first temperature-pressure integrated sensor, wherein the first temperature-pressure integrated sensor is disposed on the liquid inlet module body, and the first temperature-pressure integrated sensor is disposed in the liquid inlet channel; Liquid inlet and outlet, a plurality of the liquid inlet and outlets are arranged on the liquid inlet module body and are connected to the liquid inlet channel, and the liquid inlet and outlets are used to connect to the radiator.

4. The liquid cooling device according to claim 1, characterized in that: The heat insulation structure also extends between the liquid outlet module and the liquid storage tank.

5. The liquid cooling device according to claim 3, characterized in that: The end surface of the liquid outlet module in contact with the heat insulation structure is provided with a second air-avoiding sink groove.

6. The liquid cooling device according to claim 5, characterized in that: The liquid outlet module comprises: A liquid outlet module body, wherein the liquid outlet module body is provided with a liquid outlet channel, and the second air-avoiding sink is located on the end surface of the liquid outlet module body in contact with the heat insulation structure; Liquid inlet and outlet, each of which is arranged on the liquid outlet module body and connected to the liquid outlet channel, and each of which is connected to the liquid supply pump; a second temperature-pressure integrated sensor, wherein the second temperature-pressure integrated sensor is disposed on the liquid outlet module body, and the second temperature-pressure integrated sensor is disposed in the liquid outlet channel; A plurality of liquid outlets are provided on the liquid outlet module body and are connected to the liquid outlet channel. The liquid outlets are used to connect to the liquid inlet of the cold plate.

7. The liquid cooling device according to claim 1, characterized in that: The liquid supply pump comprises a centrifugal pump or a gear pump; The liquid storage tank includes a liquid storage tank body, a tank body liquid inlet, a defoaming liquid inlet pipe, a tank body liquid outlet and a liquid level sensor; the tank body liquid inlet is located at the upper end position of the liquid storage tank body in the height direction, and the tank body liquid inlet is connected to the radiator; the defoaming liquid inlet pipe is located in the liquid storage tank body and is connected to the tank body liquid inlet; the tank body liquid outlet is located at the lower end position of the liquid storage tank body in the height direction, and the tank body liquid outlet is connected to the liquid supply pump; the liquid level sensor is located on the liquid storage tank body and is used to detect the liquid level in the liquid storage tank body.

8. The liquid cooling device according to claim 1, characterized in that: The radiator comprises: A radiator body, the radiator body is connected to the liquid storage tank and the liquid inlet module, and the radiator body is configured as a harmonica tube structure; A heat dissipation fan is arranged on the radiator body.

9. The liquid cooling device according to claim 1, characterized in that: The liquid cooling device also includes: An electric control box, the electric control box comprising a sealed shell and a plurality of waterproof terminals arranged on the sealed shell; A plurality of quick-insert connectors are respectively arranged on the liquid supply pump, the liquid outlet module and the liquid inlet module.

10. A fast charging pile, characterized in that: Comprising a liquid cooling device as described in any one of claims 1-9.

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