CN220700927U - Water-cooling fills electric pile and charging station - Google Patents

Abstract

The utility model discloses a water-cooling charging pile and a charging station, and relates to the technical field of charging piles, comprising a shell and a charging module; a first heat conduction module is connected between the shell and the charging module; the charging pile further comprises a heat dissipation module, wherein the heat dissipation module comprises a second heat conduction module and a first water tank; the heat in the charging pile is rapidly led out through the first water tank, the second heat conduction module and the refrigerant liquid, the second water tank is further arranged and connected with the first water tank, rapid heat exchange between the refrigerant liquid and the air is realized through the large-area heat exchange surfaces on the two sides of the flat second water tank, and finally the purpose of high-efficiency heat dissipation is commonly realized.

Description

Water-cooling fills electric pile and charging station

Technical Field

The utility model relates to the technical field of charging piles, in particular to a water-cooling charging pile and a charging station.

Background

The charging pile is a product obtained by the utility model along with the appearance of the electric automobile, the charging pile and the charging station depend on each other, and the electric automobile is required to be built with the charging pile and the charging station at any time and any place so as to meet the energy supplementing requirement; charging stations are often used to serve only electric vehicles and are limited to charging service functions.

With the gradual perfection of the electric energy storage technology, the endurance of the electric automobile is obviously enhanced, and along with the improvement of the living standard of people and the positive guidance of government policies, more and more people choose to purchase the electric automobile as a travel instead of walking, so that the holding capacity of the domestic electric automobile is rapidly increased in recent years. Although the electric automobile is favored by users due to the advantages of environmental protection of used energy, economic cost of electricity consumption, convenient maintenance and the like, the electric automobile still has the advantages of short endurance and slow charging, meanwhile, the infrastructure construction of the charging pile cannot keep up with the requirements of users of the electric automobile at one time due to the speed and cost problems, and the electric automobile owner often encounters the problems of incapability of finding the charging pile, overlong charging queue and overlong charging waiting time, and basically has the problem of slow charging. In fact, charging too fast can lead to intense heating, both in the charging post and in the battery inside the car, where these components have a certain resistance due to the presence of many electronic components, wires and sockets, which converts the electrical energy into thermal energy when it passes. In order to prevent the charging pile from accumulating excessive heat and causing potential safety hazards in the charging process, on one hand, manufacturers can limit the working power of the charging pile, and on the other hand, the manufacturers can set a heat dissipation mechanism inside the charging pile. In the conventional charging pile, a high-power fan set is usually combined with a heat dissipation groove to forcibly air-cool electronic components in the charging pile so as to achieve the purpose of heat dissipation. However, this method has the problems of high noise and high energy consumption, and at the same time, air cooling essentially uses air flowing at high speed as medium to exchange heat, but the heat exchange efficiency of air is low, and the heat dissipation effect is extremely limited. The patent of publication No. CN206061399U provides a fill electric pile heat dissipation mechanism, and it forms convection current direct heat dissipation through the air inlet structure of filling electric pile side, the waterproof dustproof heat dissipation top cap in top dispels the air-out area, and quick will fill electric pile inside surplus heat and get rid of the electric pile outside through axial fan, and this kind of mode has carried out further promotion to traditional forced air cooling radiating effect, but the promotion degree still is limited.

Therefore, it is needed to provide a water-cooled charging pile and a charging station to solve the above problems.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides a water-cooling charging pile and a charging station, which can effectively improve the heat dissipation efficiency of the charging station.

The utility model is realized in the following way:

a water-cooling charging pile comprises a shell and a charging module; a first heat conduction module is connected between the shell and the charging module;

the charging pile further comprises a heat dissipation module, wherein the heat dissipation module comprises a second heat conduction module and a first water tank; the second heat conduction module comprises a rectangular heat conduction plate, a plurality of uniformly distributed rectangular cooling fins are vertically fixed on one surface of the rectangular heat conduction plate, and the other surface of the rectangular heat conduction plate is tightly connected with the outer surface of the shell; the second heat conduction modules are fixedly connected with the outer surface of the shell; the first water tank is arranged on the outer peripheral sides of the shell and the second heat conduction module, and a refrigerant liquid is arranged in a cavity formed among the first water tank, the second heat conduction module and the shell;

a second water tank is arranged outside the charging pile; the second water tank is a flat closed container, and two surfaces with the largest area are heat exchange surfaces; a refrigerant liquid is arranged in the second water tank; the first water tanks are respectively communicated to the second water tank through two pipelines, and a water pump is arranged on one pipeline; the volume of the second water tank is at least three times of the sum of the volumes of the second water tanks;

the charging pile is also provided with a charging wire and a charging gun; one end of the charging wire is connected with the charging gun, and the other end of the charging wire is connected with the charging module.

The first heat conduction module is used for conducting heat generated by the charging module to the shell; the heat dissipation module is used for conducting heat of the shell to the refrigerant, wherein the second heat conduction module is used for increasing the heat conduction area between the shell and the refrigerant and improving the heat conduction efficiency between the shell and the refrigerant liquid; the water pump is used for enabling the refrigerant liquid in the first water tank and the second water tank to flow and exchange with each other; the large-area heat exchange surface in the second water tank is used for quickly exchanging heat in the refrigerant liquid with heat in the air.

As a further optimization of the scheme, the first water tank comprises a lower shell and an upper cover, wherein the lower shell and the upper cover are containers with one side provided with an opening; the lower shell is vertically protruded along the center of the side wall to form a circle of first waterproof baffle plates, and the upper cover is vertically recessed along the center of the side wall to form a circle of first waterproof grooves; the first waterproof baffle plate and the first waterproof groove are matched with each other; the lower shell and the upper cover are tightly connected through the first waterproof baffle and the first waterproof groove.

The split type design of the lower shell and the upper cover is convenient for the disassembly, the installation and the maintenance of the first water tank, the tight fit of the first waterproof baffle and the first waterproof groove can ensure the compactness of the splicing part of the first water tank, and the refrigerant liquid is prevented from escaping and leaking.

As a further optimization of the scheme, the outer surface of the shell is vertically protruded to form two circles of second waterproof baffles, and planes of the two circles of second waterproof baffles are parallel to each other; a group of side walls which are opposite to each other in the first water tank are respectively provided with a fixed opening, and a circle of second waterproof grooves are vertically recessed towards the center of the side wall along the fixed openings;

the first water tank is sleeved on the periphery of the shell through the fixing opening, and the second waterproof groove is tightly matched with the second waterproof baffle.

The first water tank sleeved on the peripheral side of the shell can cover most of the surface area of the shell so as to be used for high-efficiency heat exchange of the heat dissipation module; meanwhile, the shell is also reserved with a part of external surface area, so that the charging pile is used for providing interfaces which are interactive to the outside and inconvenient for basic liquid and moisture, such as interfaces with poor waterproofness, such as charging wires, charging guns and the like; the second waterproof groove and the second waterproof baffle are arranged to improve the tight connection between the first water tank and the shell, so that the refrigerant liquid in the first water tank is prevented from escaping along the joint.

The utility model also provides a charging station, which comprises a bracket, wherein the water-cooling charging pile is applied;

the support comprises a plurality of upright posts, a hollowed-out heat dissipation layer is arranged at the top of each upright post, two supporting beams are arranged below the middle part of each heat dissipation layer, and the two supporting beams are connected with the upright posts; the charging pile is fixedly arranged above the supporting beam, and the second water tank is fixedly arranged in the heat dissipation layer; the two heat exchange surfaces of the second water tank face to the right upper part and the right lower part respectively; the height of the heat dissipation layer is larger than the distance between the two heat exchange surfaces.

The second water tank is arranged in the hollowed-out heat dissipation layer, so that the contact area between the second water tank and air can be fully utilized, and particularly, the heat exchange surface is fully utilized, and efficient heat exchange is realized; the charging pile is arranged below the second water tank, so that the rainproof and sun-proof effects on the charging pile can be achieved, the accelerated abrasion on the charging pile caused by direct contact with wind, rain and sunlight can be reduced, and the influence on the charging pile caused by direct sunlight can be reduced; the charging pile is arranged above the supporting beam, so that the charging pile can be prevented from being collided accidentally when the automobile is backed up; and the device can also be prevented from being worn out by the accumulated water possibly existing on the ground and soaking the charging pile.

As a further optimization of the above scheme, the pipeline connecting the first water tank and the second water tank comprises a water inlet pipe and a water outlet pipe, the liquid flow direction in the water inlet pipe is from the second water tank to the first water tank, and the liquid flow direction in the water outlet pipe is from the first water tank to the second water tank; the water pump is arranged on the water outlet pipe.

The water pump is arranged to accelerate the coolant liquid absorbing the heat of the charging pile to the second water tank; simultaneously, after the refrigerant liquid in the second water tank exchanges heat with air, heat is reduced, and the refrigerant liquid flows back to the first water tank, absorbs the heat generated by the charging pile again, and exchanges heat.

As a further optimization of the scheme, a water inlet is formed in the corner of the upper surface of the upper cover, a water outlet is formed in the corner of the lower surface of the lower shell, and the water inlet and the water outlet are positioned on opposite sides of the first water tank on a horizontal plane; the water inlet is connected with the water inlet pipe, and the water outlet is connected with the water outlet pipe.

The water inlet and the water outlet are respectively positioned at opposite sides of the upper surface and the lower surface of the first water tank, so that low-temperature refrigerant liquid can pass through a path as long as possible in the first water tank, and therefore, heat is absorbed as much as possible, and higher heat exchange efficiency is achieved.

As a further optimization of the scheme, a plurality of extension pipelines are arranged in the second water tank, and the extension pipelines are respectively connected with the water inlet pipeline and the water outlet pipeline; wherein, two extension pipelines connected with the water inlet pipe and the water outlet pipe of the same charging pile face opposite directions respectively, and the tail ends of the extension pipelines extend to the side wall of the second water tank.

The high-heat refrigerant liquid output by the water outlet and the low-heat refrigerant liquid subjected to air heat exchange can be kept away as far as possible by the arrangement of the extension pipeline, the flow path from the high-heat refrigerant liquid to the low-heat refrigerant liquid is prolonged, the heat exchange time of the high-heat refrigerant liquid and the air is prolonged, and the refrigerant liquid is fully heat exchanged and cooled.

As a further optimization of the scheme, the charging gun storage rack is fixedly arranged on the supporting beam and comprises a fixed rod connected with the supporting beams at two sides, the center of the fixed rod extends towards the right lower side to form a vertical rod, and hooks are arranged at two sides of the vertical rod; the charging gun is provided with an annular handle.

The annular handle is convenient for a user to take the charging gun, and the charging gun can be hung on the hook through the annular handle to be stored, so that the charging wire and the charging gun are prevented from falling on the ground or being swayed in disorder.

As a further optimization of the scheme, an indoor rest area is arranged above the second water tank by the support, the top of the indoor rest area is a roof, a plurality of photovoltaic panels are arranged on the outer surface of the roof, and the photovoltaic panels form a solar power generation device; the solar power generation device is electrically connected with the charging piles; the indoor rest area is connected to the ground through stairs.

The arrangement of the indoor rest area can make full use of the top space of the charging station, so that the electric automobile user can rest when the automobile is charged, the land cost can be reduced, the rest area is not required to be additionally purchased, the second water tank below the rest area can be shielded, the influence of a great amount of heat caused by direct sunlight on the heat scattering of the second water tank is avoided, and the heat dissipation efficiency is further improved; the arrangement of the solar power generation device can improve the utilization of clean energy and further reduce the electricity cost.

As a further optimization of the scheme, a small-sized network base station is arranged outside the charging station. The charging station is usually arranged in suburbs with low land cost, network signals are poor, stability of network connection can be improved by arranging a small network base station, and basic network service in the charging station is guaranteed.

The beneficial effects are as follows:

the utility model provides a novel water-cooling fills electric pile and charging station, through setting up first water tank, second heat conduction module and coolant liquid will fill the heat in the electric pile and derive fast, set up the second water tank again and be connected with first water tank, realize the quick heat transfer of coolant liquid and air through the both sides large tracts of land heat transfer face of platykurtic second water tank, finally realize high-efficient radiating purpose jointly.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a charging station according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of the overall structure of a bracket according to an embodiment of the present utility model

Fig. 3 is a schematic diagram of the overall structure of a charging pile and a charging gun storage rack according to an embodiment of the present utility model;

FIG. 4 is another angular view of FIG. 3;

FIG. 5 is a schematic view of the internal layering of the housing according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of a matching structure of a housing and a second heat conduction module according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of an explosion structure of a first water tank according to an embodiment of the present utility model;

FIG. 8 is a partial view of FIG. 7 at a;

fig. 9 is a schematic diagram of an internal structure of a second water tank according to an embodiment of the present utility model;

reference numerals:

1. a bracket; 11. a column; 12. a heat dissipation layer; 13. a support beam; 2. charging piles; 21. a housing; 211. a second waterproof baffle; 22. a first heat conduction module; 23. a heat dissipation module; 231. a second heat conduction module; 2311. rectangular heat conducting plate; 2312. rectangular radiating fins; 232. a first water tank; 2321. a lower housing; 2322. an upper cover; 2323. a first waterproof baffle; 2324. a first waterproof groove; 2325. a second waterproof groove; 2326. fixing the opening; 24. a charging wire; 25. a charging gun; 251. an annular grip; 26. a water inlet pipe; 27. a water outlet pipe; 28. a water pump; 29. a water inlet; 2-10, a water outlet; 2-11, a charging module; 3. a second water tank; 31. a heat exchange surface; 32. extending the pipeline; 4. a charging gun storage rack; 41. a fixed rod; 42. a vertical rod; 43. a hook; 5. an indoor rest area; 6. a photovoltaic panel; 7. a small network base station.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 9, the present embodiment provides a charging station, which includes a bracket 1, and a water-cooling charging pile 2 is disposed on the bracket 1;

the charging pile 2 comprises a shell 21 and charging modules 2-11; a first heat conduction module 22 is connected between the shell 21 and the charging modules 2-11; the charging pile 2 further comprises a heat dissipation module 23, wherein the heat dissipation module 23 comprises a second heat conduction module 231 and a first water tank 232; the second heat conduction module 231 includes a rectangular heat conduction plate 2311, wherein a plurality of uniformly distributed rectangular heat dissipation fins 2312 are vertically fixed on one surface of the rectangular heat conduction plate 2311, and the other surface of the rectangular heat conduction plate 2311 is tightly connected with the outer surface of the housing 21; a plurality of second heat conducting modules 231 are fixedly connected with the outer surface of the shell 21;

in this embodiment, the first water tank 232 includes a lower housing 2321 and an upper cover 2322, where the lower housing 2321 and the upper cover 2322 are containers with an opening on one surface; wherein, the lower case 2321 vertically protrudes along the center of the side wall to form a circle of first waterproof baffle 2323, and the upper cover 2322 vertically recedes along the center of the side wall to form a circle of first waterproof groove 2324; the first waterproof baffle 2323 and the first waterproof groove 2324 cooperate with each other; the lower case 2321 and the upper cover 2322 are tightly connected through the first waterproof baffle 2323 and the first waterproof groove 2324.

The split type design of the lower shell 2321 and the upper cover 2322 facilitates the disassembly, the installation and the maintenance of the first water tank 232, and the tight fit of the first waterproof baffle 2323 and the first waterproof groove 2324 can ensure the tightness of the splicing part of the first water tank 232, so that the refrigerant liquid is prevented from escaping and leaking.

In this embodiment, the outer surface of the housing 21 is vertically protruded to form two circles of second waterproof baffles 211, and the planes of the two circles of second waterproof baffles 211 are parallel to each other; a set of opposite side walls of the first water tank 232 are respectively provided with a fixed opening 2326, and a circle of second waterproof grooves 2325 are vertically recessed towards the center of the side walls along the fixed openings 2326;

the first water tank 232 is hitched to the circumferential side of the housing 21 through the fixing opening 2326, and the second waterproof groove 2325 is closely fitted with the second waterproof baffle 211.

The first water tank 232 sleeved on the peripheral side of the housing 21 can cover most of the surface area of the housing 21 for efficient heat exchange of the heat dissipation module 23; meanwhile, the shell 21 also has a part of external surface area for the charging pile 2 to provide interfaces for interaction with the outside, inconvenient basic liquid and moisture, such as interfaces with poor waterproofness of the charging wire 24, the charging gun 25 and the like; the arrangement of the second waterproof groove 2325 and the second waterproof baffle 211 can improve the tight connection between the first water tank 232 and the shell 21, and prevent the refrigerant liquid in the first water tank 232 from escaping along the connection part.

The first water tank 232 is disposed on the outer periphery side of the housing 21 and the second heat conduction module 231, and a refrigerant liquid is disposed in a cavity formed between the first water tank 232, the second heat conduction module 231 and the housing 21; in this embodiment, the refrigerant liquid is water;

a second water tank 3 is arranged outside the charging pile 2; the second water tank 3 is a flat closed container, wherein two surfaces with the largest area are heat exchange surfaces 31; a refrigerant liquid is arranged in the second water tank 3; the first water tanks 232 are respectively communicated with the second water tank 3 through two pipelines; in this embodiment, the pipe connecting the first water tank 232 and the second water tank 3 includes a water inlet pipe 26 and a water outlet pipe 27, the liquid in the water inlet pipe 26 flows from the second water tank 3 to the first water tank 232, and the liquid in the water outlet pipe 27 flows from the first water tank 232 to the second water tank 3; the water pump 28 is arranged on the water outlet pipe 27.

The water pump 28 is arranged to accelerate the coolant liquid absorbing the heat of the charging pile 2 to the second water tank 3; meanwhile, after the refrigerant liquid in the second water tank 3 exchanges heat with air, heat is reduced, and the refrigerant liquid flows back to the first water tank 232 to absorb the heat generated by the charging pile 2 again for heat exchange.

In this embodiment, a water inlet 29 is formed at a corner of the upper surface of the upper cover 2322, a water outlet 2-10 is formed at a corner of the lower surface of the lower housing 2321, and the water inlet 29 and the water outlet 2-10 are located at opposite sides of the first water tank 232 on a horizontal plane; the water inlet 29 is connected with the water inlet pipe 26, and the water outlets 2-10 are connected with the water outlet pipe 27.

The water inlet 29 and the water outlets 2-10 are respectively positioned at opposite sides of the upper surface and the lower surface of the first water tank 232, so that the low-temperature refrigerant liquid can pass through a path as long as possible in the first water tank 232, thereby absorbing as much heat as possible and achieving higher heat exchange efficiency.

In this embodiment, a plurality of extension pipes 32 are further disposed in the second water tank 3, and the extension pipes 32 are respectively connected with the water inlet pipe 26 and the water outlet pipe 27; wherein, two extension pipes 32 connected with the water inlet pipe 26 and the water outlet pipe 27 of the same charging pile 2 are respectively oriented in opposite directions, and the tail ends of the extension pipes 32 extend to the side wall of the second water tank 3.

The high-heat refrigerant liquid output by the water outlets 2-10 and the low-heat refrigerant liquid subjected to air heat exchange can be kept away as far as possible by the arrangement of the extension pipeline 32, the flow path from the high-heat refrigerant liquid to the low-heat refrigerant liquid is prolonged, the heat exchange time of the high-heat refrigerant liquid and the air is prolonged, and the refrigerant liquid is fully subjected to heat exchange and cooling.

The volume of the second water tank 3 is three times of the sum of the volumes of the second water tanks 3;

the charging pile 2 is also provided with a charging wire 24 and a charging gun 25; one end of the charging wire 24 is connected with the charging gun 25, and the other end is connected with the charging modules 2-11.

The bracket 1 comprises a plurality of upright posts 11, wherein a hollowed-out heat dissipation layer 12 is arranged at the top of each upright post 11, two supporting beams 13 are arranged below the middle part of each heat dissipation layer 12, and the two supporting beams 13 are connected with the upright posts 11; the charging pile 2 is fixedly arranged above the supporting beam 13, and the second water tank 3 is fixedly arranged in the heat dissipation layer 12; the two heat exchange surfaces 31 of the second water tank 3 face to the right upper side and the right lower side respectively; the height of the heat dissipation layer 12 is greater than the distance between the two heat exchange surfaces 31.

The second water tank 3 is arranged in the hollowed-out heat dissipation layer 12, so that the contact area between the second water tank 3 and air can be fully utilized, and particularly the heat exchange surface 31 is fully utilized, and efficient heat exchange is realized; the charging pile 2 is arranged below the second water tank 3, so that the effects of rain prevention and sun protection on the charging pile 2 can be achieved, the accelerated abrasion on the charging pile 2 caused by direct contact with wind and rain sunlight is reduced, and the influence of direct sunlight on the charging pile 2 can be reduced; the charging pile 2 is arranged above the supporting beam 13, so that the charging pile 2 can be prevented from being collided accidentally when the automobile is reversed; and the device can be prevented from being worn out rapidly due to the fact that the charging pile 2 is soaked by accumulated water possibly existing on the ground.

In this embodiment, the charging gun storage rack 4 is further fixedly arranged on the supporting beam 13, and includes a fixing rod 41 connected to the supporting beams 13 at two sides, the center of the fixing rod 41 extends towards the right lower side to form a vertical rod 42, and hooks 43 are arranged at two sides of the vertical rod 42; the charging gun 25 is provided with a ring-shaped grip 251.

The ring grip 251 facilitates the user to take the charging gun 25, and the charging gun 25 can be hooked on the hook 43 through the ring grip 251 to be stored, so that the charging wire 24 and the charging gun 25 are prevented from falling on the ground or being swayed.

In this embodiment, an indoor rest area 5 is provided above the second water tank 3 by the bracket 1, the top of the indoor rest area 5 is a roof, a plurality of photovoltaic panels 6 are installed on the outer surface of the roof, and the photovoltaic panels 6 form a solar power generation device; the solar power generation device is electrically connected with the charging piles 2; the indoor rest area 5 is connected to the ground by stairs.

The arrangement of the indoor rest area 5 can fully utilize the top space of the charging station, is convenient for the electric automobile user to rest when the vehicle is charged, can reduce the land cost, does not need to purchase the land construction rest area additionally, can shield the second water tank 3 below, and can prevent a great amount of heat brought by direct sunlight from affecting the heat scattering of the second water tank 3, thereby further improving the heat radiation efficiency; the arrangement of the solar power generation device can improve the utilization of clean energy and further reduce the electricity cost.

In this embodiment, a small network base station 7 is disposed outside the charging station. The charging station is usually arranged in suburbs with low land cost, network signals are poor, stability of network connection can be improved by arranging the small network base station 7, and basic network service in the charging station is ensured.

The working principle is as follows:

the first heat conduction module 22 is used for conducting heat generated by the charging modules 2-11 to the housing 21; the heat dissipation module 23 is configured to conduct heat of the housing 21 to the refrigerant, wherein the second heat conduction module 231 is configured to increase a heat conduction area between the housing 21 and the refrigerant, and improve heat conduction efficiency between the housing 21 and the refrigerant liquid; the water pump 28 is used for making the coolant liquid in the first water tank 232 and the second water tank 3 flow and exchange with each other; the large-area heat exchange surface 31 in the second water tank 3 is used to rapidly exchange heat in the coolant with heat in the air. Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings.

Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.

Claims (10)

1. A water-cooling charging pile comprises a shell and a charging module; the method is characterized in that: a first heat conduction module is connected between the shell and the charging module;

the charging pile further comprises a heat dissipation module, wherein the heat dissipation module comprises a second heat conduction module and a first water tank; the second heat conduction module comprises a rectangular heat conduction plate, a plurality of uniformly distributed rectangular cooling fins are vertically fixed on one surface of the rectangular heat conduction plate, and the other surface of the rectangular heat conduction plate is tightly connected with the outer surface of the shell; the second heat conduction modules are fixedly connected with the outer surface of the shell; the first water tank is arranged on the outer peripheral sides of the shell and the second heat conduction module, and a refrigerant liquid is arranged in a cavity formed among the first water tank, the second heat conduction module and the shell;

a second water tank is arranged outside the charging pile; the second water tank is a flat closed container, and two surfaces with the largest area are heat exchange surfaces; a refrigerant liquid is arranged in the second water tank; the first water tanks are respectively communicated to the second water tank through two pipelines, and a water pump is arranged on one pipeline; the volume of the second water tank is at least three times of the sum of the volumes of the second water tanks;

the charging pile is also provided with a charging wire and a charging gun; one end of the charging wire is connected with the charging gun, and the other end of the charging wire is connected with the charging module.

2. A water-cooled charging stake as claimed in claim 1, wherein: the first water tank comprises a lower shell and an upper cover, and the lower shell and the upper cover are containers with openings on one sides; the lower shell is vertically protruded along the center of the side wall to form a circle of first waterproof baffle plates, and the upper cover is vertically recessed along the center of the side wall to form a circle of first waterproof grooves; the first waterproof baffle plate and the first waterproof groove are matched with each other; the lower shell and the upper cover are tightly connected through the first waterproof baffle and the first waterproof groove.

3. A water-cooled charging pile according to claim 2, characterised in that: the outer surface of the shell is vertically protruded to form two circles of second waterproof baffles, and the planes of the two circles of second waterproof baffles are parallel to each other; a group of side walls which are opposite to each other in the first water tank are respectively provided with a fixed opening, and a circle of second waterproof grooves are vertically recessed towards the center of the side wall along the fixed openings;

the first water tank is sleeved on the periphery of the shell through the fixing opening, and the second waterproof groove is tightly matched with the second waterproof baffle.

4. A charging station comprising a stand; the method is characterized in that: use of a water-cooled charging pile according to any one of claims 2 to 3;

the support comprises a plurality of upright posts, a hollowed-out heat dissipation layer is arranged at the top of each upright post, two supporting beams are arranged below the middle part of each heat dissipation layer, and the two supporting beams are connected with the upright posts; the charging pile is fixedly arranged above the supporting beam, and the second water tank is fixedly arranged in the heat dissipation layer; the two heat exchange surfaces of the second water tank face to the right upper part and the right lower part respectively; the height of the heat dissipation layer is larger than the distance between the two heat exchange surfaces.

5. The charging station of claim 4, wherein: the pipeline for connecting the first water tank and the second water tank comprises a water inlet pipe and a water outlet pipe, the liquid flow direction in the water inlet pipe is from the second water tank to the first water tank, and the liquid flow direction in the water outlet pipe is from the first water tank to the second water tank; the water pump is arranged on the water outlet pipe.

6. The charging station of claim 5, wherein: a water inlet is formed in the corner of the upper surface of the upper cover, a water outlet is formed in the corner of the lower surface of the lower shell, and the water inlet and the water outlet are positioned on opposite sides of the first water tank on a horizontal plane; the water inlet is connected with the water inlet pipe, and the water outlet is connected with the water outlet pipe.

7. The charging station of claim 5, wherein: a plurality of extension pipelines are arranged in the second water tank, and the extension pipelines are respectively connected with the water inlet pipeline and the water outlet pipeline; wherein, two extension pipelines connected with the water inlet pipe and the water outlet pipe of the same charging pile face opposite directions respectively, and the tail ends of the extension pipelines extend to the side wall of the second water tank.

8. The charging station of claim 4, wherein: the charging gun storage rack is fixedly arranged on the supporting beam and comprises a fixed rod connected with the supporting beams at two sides, the center of the fixed rod extends towards the right lower side to form a vertical rod, and hooks are arranged at two sides of the vertical rod; the charging gun is provided with an annular handle.

9. The charging station of claim 4, wherein: an indoor rest area is arranged above the second water tank by the support, the top of the indoor rest area is a roof, a plurality of photovoltaic panels are arranged on the outer surface of the roof, and the photovoltaic panels form a solar power generation device; the solar power generation device is electrically connected with the charging piles; the indoor rest area is connected to the ground through stairs.

10. The charging station of claim 4, wherein: and a small network base station is arranged outside the charging station.