Cooling system of liquid cooling charging pile and charging pile group

Abstract

The invention relates to the technical field of liquid cooling charging piles, and discloses a liquid cooling charging pile and a cooling system of a charging pile group, the liquid cooling charging pile comprises a pile body, a power module, a control module, a cooling module and a charging gun, the power module is used for converting alternating current into direct current, and the power module is electrically connected with the control module; the charging gun is electrically connected with the power module through a cable, the power module comprises a liquid cooling plate, a first cooling flow channel is formed in the cable, a second cooling flow channel is formed in the charging gun, the cooling module comprises a liquid inlet pipe, a liquid outlet pipe and a first water pump, the liquid inlet pipe and the liquid outlet pipe are arranged on the pile body in a penetrating mode, and the liquid inlet pipe communicates with the heat dissipation device through the first water pump. The liquid outlet pipe communicates with the heat dissipation device through the electric control valve, the control module comprises a controller and a temperature detection sensor, and the temperature detection sensor is arranged on the outer side of the pile body and used for detecting the external environment temperature. The problem that the stability of the liquid cooling charging pile is poor can be relieved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid-cooled charging piles, and in particular to a heat dissipation system of a liquid-cooled charging pile and a charging pile group. Background Art

[0002] The emergence of fast charging technology allows electric vehicles to obtain sufficient power in a short period of time, thus effectively alleviating the owners' range anxiety. Especially in places such as highway service areas and urban charging stations, the setting of fast charging piles provides convenient charging services for electric vehicles and ensures the range of electric vehicles.

[0003] However, the size of charging piles is limited, and higher-power fast-charging charging piles require greater heat dissipation. The quality of heat dissipation performance directly affects the safety and life of the charging piles.

[0004] At present, most of the existing liquid-cooled charging piles use coolant to bring heat to the heat exchanger, and then use a fan to accelerate the heat dissipation efficiency of the heat exchanger. Therefore, there are usually exhaust vents and air inlets on the pile body for air exchange, which makes it easy for tiny particles such as dust and sand to enter the charging pile. After long-term accumulation, they will cover the surface of electronic components, affecting their heat dissipation performance, causing the component temperature to rise, and reducing the working efficiency and stability of the charging pile.

[0005] With respect to the above-mentioned related technologies, the inventor believes that the existing liquid-cooled charging piles have the problem of poor stability. Summary of the invention

[0006] In order to alleviate the problem of poor stability of existing liquid-cooled charging piles, the present invention provides a liquid-cooled charging pile.

[0007] The present invention provides a liquid-cooled charging pile, which adopts the following technical solution:

[0008] A liquid-cooled charging pile, comprising a pile body, a power module, a control module, a cooling module and a charging gun, wherein the power module and the control module are arranged inside the pile body, the power module is used to convert alternating current into direct current, the power module is electrically connected to the control module, the charging gun is electrically connected to the power module through a cable, the power module comprises a liquid cooling plate, a first cooling channel is provided in the cable, a second cooling channel is provided in the charging gun, the cooling module comprises a liquid inlet pipe, a liquid outlet pipe and a first water pump, the liquid inlet pipe and the liquid outlet pipe are both arranged on the pile body, the liquid inlet pipe is connected to a heat dissipation device through the first water pump, and the liquid outlet pipe is connected to a heat dissipation device through an electric The control valve is connected to the heat dissipation device, the liquid inlet of the liquid cooling plate is connected to the liquid inlet pipe, the liquid outlet of the liquid cooling plate is connected to the liquid outlet pipe, one end of the first cooling channel is connected to the liquid inlet pipe, the other end of the first cooling channel is connected to the liquid outlet pipe, one end of the second cooling channel is connected to the liquid inlet pipe, the other end of the second cooling channel is connected to the liquid outlet pipe, the control module includes a controller and a temperature detection sensor, the temperature detection sensor is arranged on the outside of the pile body, the temperature detection sensor is electrically connected to the controller, the temperature detection sensor is used to detect the external ambient temperature, and the first water pump and the electric control valve are both electrically connected to the controller.

[0009] By adopting the above technical solution, the liquid cooling plate, the first cooling channel and the second cooling channel are set to achieve effective cooling of the power module, the cable and the charging gun. The cooling module is connected to the heat dissipation system outside the pile body through the liquid inlet pipe and the liquid outlet pipe, reducing the possibility of dust, sand and other tiny particles entering the charging pile, thereby alleviating the problem of poor stability of the liquid-cooled charging pile; the combination of the temperature detection sensor and the controller enables the charging pile to intelligently adjust the operation of the cooling module according to the external ambient temperature. When the ambient temperature rises, the controller can instruct the first water pump to increase the coolant circulation speed to enhance the heat dissipation effect; conversely, when the ambient temperature is low, the coolant circulation can be reduced to save energy. In addition, when the external ambient temperature is high, even if the charging pile is idle, the controller instructs the first water pump to circulate the coolant at a low speed to cool the idle charging pile, so that the charging pile maintains a low temperature before use. Effective heat dissipation can ensure that the power module operates at the optimal operating temperature, thereby improving the power conversion efficiency, reducing energy loss, and speeding up the charging speed.

[0010] In order to alleviate the problem of poor stability of existing liquid-cooled charging piles, the present invention also provides a heat dissipation system for a charging pile group.

[0011] The present invention provides a heat dissipation system for a charging pile group, which adopts the following technical solution:

[0012] A heat dissipation system for a charging pile group, comprising a heat dissipation device and a plurality of the above-mentioned liquid-cooled charging piles. The heat dissipation device includes an outer box body provided with a hollow interior. An exchange coil is arranged inside the outer box body. The plurality of liquid-cooled charging piles are arranged on the same side of the outer box body, and the plurality of liquid-cooled charging piles are arranged at intervals along the length direction of the outer box body. The liquid inlet pipe is communicated with one end of the exchange coil, and the liquid outlet pipe is communicated with the other end of the exchange coil. An air exchange hole is opened on the side wall of the outer box body, and a ventilation mechanism for controlling the air flow inside the outer box body is arranged on the outer box body.

[0013] By adopting the above technical solution, a combination of a plurality of liquid-cooled charging piles, an outer box body with a hollow interior and an internal exchange coil is achieved. Each liquid-cooled charging pile is equipped with a liquid-cooling system inside. Through components such as a liquid-cooling plate, a cooling flow channel, a liquid inlet pipe, a liquid outlet pipe and a first water pump, effective cooling of the power module, cable and charging gun is realized. The exchange coil arranged inside the outer box body is connected to the liquid outlet pipe of the liquid-cooled charging pile. When the coolant flows through the exchange coil, it transfers heat to the air outside the outer box body, and the heat dissipation device is used to centrally dissipate the heat of the coolant flowing in the plurality of liquid-cooled charging piles, avoiding the problem that dust, sand and other fine particles enter the inside of the charging pile due to the opening of air exhaust ports and air inlet ports on the pile body for air exchange, which affects the working efficiency and stability of the charging pile.

[0014] Optionally, the ventilation mechanism includes a fan. The air exchange hole includes an exhaust hole and an air inlet hole opened on the side wall of the outer box body, and the exhaust hole is communicated with the fan.

[0015] Optionally, the air inlet hole includes a first air inlet hole opened on the side of the outer box body close to the liquid-cooled charging pile and a second air inlet hole opened on the side of the outer box body far from the liquid-cooled charging pile. A first switch plate and a second switch plate are slidably connected to the outer box body. The first switch plate is used to close the first air inlet hole, and the second switch plate is used to close the second air inlet hole. A plurality of first communication holes are opened on the first switch plate, and the plurality of first communication holes are correspondingly arranged with the plurality of first air inlet holes. A plurality of second communication holes are opened on the second switch plate, and the plurality of second communication holes are correspondingly arranged with the plurality of second air inlet holes.

[0016] By adopting the above technical solution, the first air inlet and the second air inlet are arranged so that the air inside the outer box can enter from two different directions. By sliding the first switch plate and the second switch plate, the opening or closing of the first air inlet and the second air inlet can be controlled respectively. When the external ambient temperature is high, the first air inlet or the second air inlet is opened according to the sunlight conditions to allow the air on the side with lower temperature of the outer box to enter the inner part of the outer box for heat dissipation, thereby improving the heat exchange efficiency of the heat exchange coil. In addition, in extremely cold weather, the first switch plate and the second switch plate can be closed to reduce the air flow inside the outer box, prevent excessive heat loss, and keep the temperature of the charging pile group stable.

[0017] Optionally, the exhaust holes include a plurality of first exhaust holes and a plurality of second exhaust holes opened on the side walls at both ends of the length direction of the outer box body, the plurality of first exhaust holes and the plurality of second exhaust holes are spaced apart along the height direction of the outer box body, the first exhaust holes and the second exhaust holes are both connected to the fan, the first exhaust holes and the second exhaust holes are respectively located on both sides of the heat exchange coil, the plurality of first exhaust holes are connected to the fan through the first exhaust pipe, the plurality of second exhaust holes are connected to the fan through the second exhaust pipe, the first exhaust pipe is provided with a first switch valve for controlling the opening and closing of the first exhaust pipe, the second exhaust pipe is provided with a second switch valve for controlling the opening and closing of the second exhaust pipe, and the first switch valve and the second switch valve are both connected to the controller.

[0018] By adopting the above technical scheme, a first exhaust hole and a second exhaust hole are respectively opened on both sides of the heat exchange coil, the first exhaust hole is connected to the fan through the first exhaust pipe, and the second exhaust hole is connected to the fan through the second exhaust pipe. When the first air inlet hole on one side of the heat exchange coil is opened, the second exhaust pipe on the other side of the heat exchange coil is opened, and the fan discharges air from the outer box through the second exhaust hole. Conversely, when the second air inlet hole on one side of the heat exchange coil is opened, the first exhaust pipe on the other side of the heat exchange coil is opened, and the fan discharges air from the outer box through the first exhaust hole, so that the air passes through the heat exchange coil when flowing in the outer box, the heat exchange coil fully exchanges heat with the air, and the heat dissipation effect of the heat exchange coil is improved.

[0019] Optionally, a first electric push cylinder and a second electric push cylinder are provided on the outer box body, the first electric push cylinder is connected to the first switch plate, and the first electric push cylinder is used to drive the first switch plate to move, the second electric push cylinder is connected to the second switch plate, and the second electric push cylinder is used to drive the second switch plate to move, and the first electric push cylinder and the second electric push cylinder are both electrically connected to the controller.

[0020] Optionally, a shading plate is provided on the top of the outer box body, a solar heating panel is provided on the side of the shading plate away from the outer box body, the heat exchange coil is connected to the solar heating panel via a second water pump, and the second water pump is electrically connected to the controller.

[0021] By adopting the above technical solution, a shading plate is set on the top of the outer box body to alleviate the direct sunlight on the outer box body. At the same time, a solar heating plate is set on the top of the shading plate. The heat exchange coil is connected to the solar heating plate through a second water pump. When the external ambient temperature is extremely low, the working state of the charging pile will also be affected. In order to ensure the normal operation of the charging pile, the solar heating plate is used to collect solar energy to heat the coolant in the heat exchange coil, and then the heated coolant is used to heat the electrical components in the liquid-cooled charging pile, so that the liquid-cooled charging pile can work normally under extremely cold conditions.

[0022] Optionally, a solar cell panel is disposed on one side of the first switch board and the second switch board away from the outer box body.

[0023] Optionally, a fuel heater is disposed inside the outer box, and the fuel heater is used to heat the inner space of the outer box, and the fuel heater is electrically connected to the controller.

[0024] By adopting the above technical solution, a fuel heater is arranged inside the outer box. Since solar heating has certain limitations, in extremely cold weather, when the solar heat source is insufficient, the fuel heater is used to heat the inside of the outer box, thereby performing heat exchange with the coolant in the heat exchange coil, thereby achieving the effect of preheating the electrical components inside the liquid-cooled charging pile.

[0025] In summary, the present invention includes at least one of the following beneficial technical effects:

[0026] 1. Through the arrangement of the liquid cooling plate, the first cooling channel and the second cooling channel, effective cooling of the power module, the cable and the charging gun is achieved. The cooling module is connected to the heat dissipation system outside the pile body through the liquid inlet pipe and the liquid outlet pipe, reducing the possibility of dust, sand and other tiny particles entering the charging pile, thereby alleviating the problem of poor stability of the liquid-cooled charging pile; the combination of the temperature detection sensor and the controller enables the charging pile to intelligently adjust the operation of the cooling module according to the external ambient temperature. When the ambient temperature rises, the controller can instruct the first water pump to increase the coolant circulation speed, thereby enhancing the heat dissipation effect. Conversely, when the ambient temperature is low, the coolant circulation can be reduced to save energy. In addition, when the external ambient temperature is high, even if the charging pile is idle, the controller instructs the first water pump to circulate the coolant at a low speed to cool the idle charging pile, so that the charging pile maintains a low temperature before use. Effective heat dissipation can ensure that the power module operates at the optimal operating temperature, thereby improving the power conversion efficiency, reducing energy loss, and speeding up the charging speed;

[0027] 2. By respectively opening a first exhaust hole and a second exhaust hole on both sides of the heat exchange coil, the first exhaust hole is connected to the fan through the first exhaust pipe, and the second exhaust hole is connected to the fan through the second exhaust pipe. When the first air inlet hole on one side of the heat exchange coil is opened, the second exhaust pipe on the other side of the heat exchange coil is opened, and the fan discharges air from the outer box through the second exhaust hole. Conversely, when the second air inlet hole on one side of the heat exchange coil is opened, the first exhaust pipe on the other side of the heat exchange coil is opened, and the fan discharges air from the outer box through the first exhaust hole, so that the air passes through the heat exchange coil when flowing in the outer box, and the heat exchange coil fully exchanges heat with the air, thereby improving the heat dissipation effect of the heat exchange coil;

[0028] 3. A sunshade is set on the top of the outer box to alleviate direct sunlight from shining on the outer box. At the same time, a solar heating plate is set on the top of the sunshade. The heat exchange coil is connected to the solar heating plate through a second water pump. When the external ambient temperature is extremely low, the working state of the charging pile will also be affected. In order to ensure the normal operation of the charging pile, the solar heating plate is used to collect solar energy to heat the coolant in the heat exchange coil, and then the heated coolant is used to heat the electrical components in the liquid-cooled charging pile, so that the liquid-cooled charging pile can work normally under extremely cold conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0031] Figure 2 is a schematic structural diagram of a heat dissipation device in an embodiment of the present invention;

[0032] Figure 3 is a schematic structural diagram of a second switch board and an outer box body in an embodiment of the present invention;

[0033] Figure 4 is a schematic structural diagram of the ventilation mechanism part in an embodiment of the present invention;

[0034] Figure 5 It is a schematic structural diagram of the first exhaust hole, the second exhaust hole and the outer box body in an embodiment of the present invention.

[0035] Figure numerals: 100, pile body; 200, heat dissipation device; 300, outer box body; 310, first air inlet hole; 320, second air inlet hole; 330, first exhaust hole; 340, second exhaust hole; 350, first switch plate; 351, first connecting hole; 360, second switch plate; 361, second connecting hole; 370, first electric push cylinder; 380, second electric push cylinder; 400, ventilation mechanism; 410, fan; 420, first exhaust pipe; 430, second exhaust pipe; 500, sunshade; 600, solar heating panel. DETAILED DESCRIPTION

[0036] In order to more clearly explain the overall concept of the present invention, the following Figure 1-5 The present invention is described in further detail.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present invention and the features in each embodiment may be combined with each other without conflict.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The embodiment of the present invention discloses a liquid-cooled charging pile. Figure 1 A liquid-cooled charging pile includes a pile body 100, a power module, a control module, a cooling module and a charging gun. The power module and the control module are arranged inside the pile body 100, the power module is used to convert AC power into DC power, and the power module is electrically connected to the control module. The charging gun is electrically connected to the power module through a cable. The power module includes a liquid cooling plate, a first cooling channel is provided in the cable, and a second cooling channel is provided in the charging gun.

[0040] The cooling module includes a liquid inlet pipe, a liquid outlet pipe and a first water pump, the liquid inlet pipe and the liquid outlet pipe are both arranged on the pile body 100, the liquid inlet pipe is connected to the heat sink 200 through the first water pump, the liquid outlet pipe is connected to the heat sink 200 through the electric control valve, the liquid inlet of the liquid cooling plate is connected to the liquid inlet pipe, the liquid outlet of the liquid cooling plate is connected to the liquid outlet pipe, one end of the first cooling channel is connected to the liquid inlet pipe, the other end of the first cooling channel is connected to the liquid outlet pipe, one end of the second cooling channel is connected to the liquid inlet pipe, and the other end of the second cooling channel is connected to the liquid outlet pipe. The control module includes a controller and a temperature detection sensor, the temperature detection sensor is arranged outside the pile body 100, the temperature detection sensor is electrically connected to the controller, the temperature detection sensor is used to detect the external environment temperature, and the first water pump and the electric control valve are both electrically connected to the controller.

[0041] The arrangement of the liquid cooling plate, the first cooling channel and the second cooling channel realizes effective cooling of the power module, the cable and the charging gun. The cooling module is connected to the heat dissipation system outside the pile body 100 through the liquid inlet pipe and the liquid outlet pipe, reducing the possibility of dust, sand and other tiny particles entering the charging pile, thereby alleviating the problem of poor stability of the liquid-cooled charging pile. The combination of the temperature detection sensor and the controller enables the charging pile to intelligently adjust the operation of the cooling module according to the external ambient temperature. When the ambient temperature rises, the controller can instruct the first water pump to increase the coolant circulation speed to enhance the heat dissipation effect; conversely, when the ambient temperature is low, the coolant circulation can be reduced to save energy. In addition, when the external ambient temperature is high, even if the charging pile is idle, the controller instructs the first water pump to circulate the coolant at a low speed to cool the idle charging pile, so that the charging pile maintains a lower temperature before use. Effective heat dissipation can ensure that the power module operates at the optimal operating temperature, thereby improving the power conversion efficiency, reducing energy loss, and speeding up the charging speed.

[0042] Reference Figure 1 and Figure 2 The present embodiment also discloses a heat dissipation system for a charging pile group, including a heat dissipation device 200 and a plurality of the above-mentioned liquid-cooled charging piles. The heat dissipation device 200 includes a hollow outer box 300, and a heat exchange coil is arranged inside the outer box 300. A plurality of liquid-cooled charging piles are arranged on the same side of the outer box 300, and a plurality of liquid-cooled charging piles are arranged at intervals along the length direction of the outer box 300. The liquid inlet pipe is connected to one end of the heat exchange coil, and the liquid outlet pipe is connected to the other end of the heat exchange coil. Ventilation holes are provided on the side wall of the outer box 300, and a ventilation mechanism 400 for controlling the air flow in the outer box 300 is provided on the outer box 300.

[0043] By combining multiple liquid-cooled charging piles with a hollow outer box 300 and an internal heat exchange coil, each liquid-cooled charging pile is equipped with a liquid cooling system. Through components such as a liquid cooling plate, a cooling channel, a liquid inlet pipe, a liquid outlet pipe and a first water pump, effective cooling of the power module, the cable and the charging gun is achieved. The heat exchange coil arranged inside the outer box 300 is connected to the liquid outlet pipe of the liquid-cooled charging pile. When the coolant flows through the heat exchange coil, the heat is transferred to the air outside the outer box 300. The heat dissipation device 200 is used to centrally dissipate the heat of the coolant flowing in the multiple liquid-cooled charging piles, thereby avoiding the problem of dust, sand and other tiny particles entering the charging pile due to the opening of exhaust vents and air inlets on the pile body for air exchange, thereby affecting the working efficiency and stability of the charging pile.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The ventilation mechanism 400 includes a fan 410 , and the ventilation holes include an exhaust hole and an air inlet hole opened on the side wall of the outer box body 300 , and the exhaust hole is connected to the fan 410 .

[0045] The air inlet hole includes a first air inlet hole 310 opened on the side of the outer box 300 close to the liquid-cooled charging pile and a second air inlet hole 320 opened on the side of the outer box 300 away from the liquid-cooled charging pile. The outer box 300 is slidably connected with a first switch plate 350 and a second switch plate 360. The first switch plate 350 is used to close the first air inlet hole 310, and the second switch plate 360 ​​is used to close the second air inlet hole 320. The first switch plate 350 is provided with a plurality of first connecting holes 351, and the plurality of first connecting holes 351 are arranged correspondingly to the plurality of first air inlet holes 310. The second switch plate 360 ​​is provided with a plurality of second connecting holes 361, and the plurality of second connecting holes 361 are arranged correspondingly to the plurality of second air inlet holes 320.

[0046] The outer box 300 is provided with a first electric push cylinder 370 and a second electric push cylinder 380. The first electric push cylinder 370 is connected to the first switch plate 350 and is used to drive the first switch plate 350 to move. The second electric push cylinder 380 is connected to the second switch plate 360 ​​and is used to drive the second switch plate 360 ​​to move. Both the first electric push cylinder 370 and the second electric push cylinder 380 are electrically connected to the controller.

[0047] The first air inlet 310 and the second air inlet 320 are provided so that the air inside the outer box 300 can enter from two different directions. By sliding the first switch plate 350 and the second switch plate 360, the opening or closing of the first air inlet 310 and the second air inlet 320 can be controlled respectively. When the external ambient temperature is high, according to the sunlight conditions, the first air inlet 310 or the second air inlet 320 is opened to allow the air on the lower temperature side of the outer box 300 to enter the outer box 300 for heat dissipation, thereby improving the heat exchange efficiency of the heat exchange coil. In addition, in extremely cold weather, the first switch plate 350 and the second switch plate 360 ​​can be closed to reduce the air flow inside the outer box 300, prevent the heat from being lost too quickly, and keep the temperature of the charging pile group stable.

[0048] Reference Figure 4 and Figure 5 The exhaust holes include a plurality of first exhaust holes 330 and a plurality of second exhaust holes 340 opened on the side walls at both ends of the length direction of the outer box body 300. The plurality of first exhaust holes 330 and the plurality of second exhaust holes 340 are arranged at intervals along the height direction of the outer box body 300, and the first exhaust holes 330 and the second exhaust holes 340 are both connected to the fan 410. The first exhaust holes 330 and the second exhaust holes 340 are respectively located on both sides of the heat exchange coil, and the plurality of first exhaust holes 330 are connected to the fan 410 through the first exhaust pipe 420, and the plurality of second exhaust holes 340 are connected to the fan 410 through the second exhaust pipe 430. A first switch valve for controlling the opening and closing of the first exhaust pipe 420 is provided on the first exhaust pipe 420, and a second switch valve for controlling the opening and closing of the second exhaust pipe 430 is provided on the second exhaust pipe 430, and the first switch valve and the second switch valve are both connected to the controller.

[0049] By respectively opening the first exhaust hole 330 and the second exhaust hole 340 on both sides of the heat exchange coil, the first exhaust hole 330 is connected to the fan 410 through the first exhaust pipe 420, and the second exhaust hole 340 is connected to the fan 410 through the second exhaust pipe 430. When the first air inlet 310 on one side of the heat exchange coil is opened, the second exhaust pipe 430 on the other side of the heat exchange coil is opened, and the fan 410 discharges air from the outer box 300 through the second exhaust hole 340. Conversely, when the second air inlet 320 on one side of the heat exchange coil is opened, the first exhaust pipe 420 on the other side of the heat exchange coil is opened, and the fan 410 discharges air from the outer box 300 through the first exhaust hole 330, so that the air passes through the heat exchange coil when flowing in the outer box 300, and the heat exchange coil fully exchanges heat with the air, thereby improving the heat dissipation effect of the heat exchange coil.

[0050] Reference Figure 1A sunshade 500 is arranged on the top of the outer box body 300, and a solar heating panel 600 is arranged on the side of the sunshade 500 away from the outer box body 300. The heat exchange coil is connected to the solar heating panel 600 through a second water pump, and the second water pump is electrically connected to the controller.

[0051] By setting a sunshade 500 on the top of the outer box body 300, direct sunlight on the outer box body 300 is alleviated. At the same time, a solar heating panel 600 is set on the top of the sunshade 500. The heat exchange coil is connected to the solar heating panel 600 through a second water pump. When the external ambient temperature is extremely low, the working state of the charging pile will also be affected. In order to ensure the normal operation of the charging pile, the solar heating panel 600 is used to collect solar energy to heat the coolant in the heat exchange coil, and then the heated coolant is used to heat the electrical components in the liquid-cooled charging pile, so that the liquid-cooled charging pile can work normally under extremely cold conditions.

[0052] Solar panels are disposed on one side of the first switch board 350 and the second switch board 360 away from the outer box body 300 .

[0053] A fuel heater is disposed inside the outer box body 300, and the fuel heater is used to heat the inner space of the outer box body 300. The fuel heater is electrically connected to the controller.

[0054] By setting a fuel heater inside the outer box 300, since solar heating has certain limitations, in extremely cold weather, when the solar heat source is insufficient, the fuel heater is used to heat the inside of the outer box 300, thereby performing heat exchange with the coolant in the heat exchange coil, thereby achieving the effect of preheating the electrical components inside the liquid-cooled charging pile.

[0055] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0056] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention. Anything not described in the present invention can be achieved by adopting or drawing on existing technologies.

Claims

1. A liquid-cooled charging pile, characterized in that: The invention comprises a pile body (100), a power module, a control module, a cooling module and a charging gun, wherein the power module and the control module are arranged inside the pile body (100), the power module is used to convert alternating current into direct current, the power module is electrically connected to the control module, the charging gun is electrically connected to the power module via a cable, the power module comprises a liquid cooling plate, a first cooling channel is provided in the cable, a second cooling channel is provided in the charging gun, the cooling module comprises a liquid inlet pipe, a liquid outlet pipe and a first water pump, the liquid inlet pipe and the liquid outlet pipe are both passed through the pile body (100), the liquid inlet pipe is connected to a heat dissipation device (200) via the first water pump, and the liquid outlet pipe is connected to a heat dissipation device (200) via a first water pump. The electric control valve is connected to the heat dissipation device (200), the liquid inlet of the liquid cooling plate is connected to the liquid inlet pipe, the liquid outlet of the liquid cooling plate is connected to the liquid outlet pipe, one end of the first cooling channel is connected to the liquid inlet pipe, the other end of the first cooling channel is connected to the liquid outlet pipe, one end of the second cooling channel is connected to the liquid inlet pipe, the other end of the second cooling channel is connected to the liquid outlet pipe, the control module comprises a controller and a temperature detection sensor, the temperature detection sensor is arranged outside the pile body (100), the temperature detection sensor is electrically connected to the controller, the temperature detection sensor is used to detect the external environment temperature, and the first water pump and the electric control valve are both electrically connected to the controller.

2. A heat dissipation system for a charging pile group, comprising a heat dissipation device (200) and a plurality of liquid-cooled charging piles according to claim 1, wherein the heat dissipation device (200) comprises a hollow outer box (300), a heat exchange coil is arranged inside the outer box (300), a plurality of the liquid-cooled charging piles are arranged on the same side of the outer box (300), and a plurality of the liquid-cooled charging piles are arranged at intervals along the length direction of the outer box (300), the liquid inlet pipe is connected to one end of the heat exchange coil, the liquid outlet pipe is connected to the other end of the heat exchange coil, a ventilation hole is opened on the side wall of the outer box (300), and a ventilation mechanism (400) for controlling the flow of air in the outer box (300) is arranged on the outer box (300).

3. A heat dissipation system for a charging pile group according to claim 2, characterized in that: The ventilation mechanism (400) comprises a fan (410), and the ventilation holes comprise an exhaust hole and an air inlet hole opened on the side wall of the outer box body (300), and the exhaust hole is connected to the fan (410).

4. A heat dissipation system for a charging pile group according to claim 3, characterized in that: The air inlet hole comprises a first air inlet hole (310) provided on a side of the outer box (300) close to the liquid-cooled charging pile and a second air inlet hole (320) provided on a side of the outer box (300) away from the liquid-cooled charging pile. A first switch plate (350) and a second switch plate (360) are slidably connected to the outer box (300). The first switch plate (350) is used to close the first air inlet hole (310), and the second switch plate (360) is used to close the second air inlet hole (320). The first switch plate (350) is provided with a plurality of first connecting holes (351), and the plurality of first connecting holes (351) are arranged correspondingly to the plurality of first air inlet holes (310). The second switch plate (360) is provided with a plurality of second connecting holes (361), and the plurality of second connecting holes (361) are arranged correspondingly to the plurality of second air inlet holes (320).

5. A heat dissipation system for a charging pile group according to claim 4, characterized in that: The exhaust holes include a plurality of first exhaust holes (330) and a plurality of second exhaust holes (340) which are opened on the side walls at both ends of the outer box body (300) in the length direction. The plurality of first exhaust holes (330) and the plurality of second exhaust holes (340) are arranged at intervals along the height direction of the outer box body (300). The first exhaust holes (330) and the second exhaust holes (340) are both connected to the fan (410). The first exhaust holes (330) and the second exhaust holes (340) are respectively located at two ends of the heat exchange coil. On the side, the plurality of first exhaust holes (330) are connected to the fan (410) through the first exhaust pipe (420), and the plurality of second exhaust holes (340) are connected to the fan (410) through the second exhaust pipe (430). The first exhaust pipe (420) is provided with a first switch valve for controlling the opening and closing of the first exhaust pipe (420), and the second exhaust pipe (430) is provided with a second switch valve for controlling the opening and closing of the second exhaust pipe (430). Both the first switch valve and the second switch valve are connected to a controller.

6. A heat dissipation system for a charging pile group according to claim 4, characterized in that: The outer box body (300) is provided with a first electric push cylinder (370) and a second electric push cylinder (380), the first electric push cylinder (370) is connected to the first switch plate (350), and the first electric push cylinder (370) is used to drive the first switch plate (350) to move, the second electric push cylinder (380) is connected to the second switch plate (360), and the second electric push cylinder (380) is used to drive the second switch plate (360) to move, and the first electric push cylinder (370) and the second electric push cylinder (380) are both electrically connected to the controller.

7. The heat dissipation system of a charging pile group according to claim 2, characterized in that: A sunshade (500) is arranged on the top of the outer box body (300), and a solar heating panel (600) is arranged on the side of the sunshade (500) away from the outer box body (300). The heat exchange coil is connected to the solar heating panel (600) via a second water pump, and the second water pump is electrically connected to a controller.

8. The heat dissipation system of a charging pile group according to claim 4, characterized in that: A solar cell panel is provided on one side of the first switch board (350) and the second switch board (360) away from the outer box body (300).

9. The heat dissipation system of a charging pile group according to claim 2, characterized in that: A fuel heater is disposed inside the outer box (300), and the fuel heater is used to heat the inner space of the outer box (300). The fuel heater is electrically connected to the controller.

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