Cooling system for new energy charging pile

Abstract

The invention provides a cooling system for a new energy charging pile. The cooling system comprises a water tank; the liquid inlet end of the water pump is connected with the liquid outlet end of the water tank; the branch block comprises a first cavity and a second cavity, and the liquid inlet end of the first cavity is connected with the liquid outlet end of the water pump; the liquid inlet end of the micro-channel radiator is connected with the liquid outlet end of the second cavity, and the liquid outlet end of the micro-channel radiator is used for being connected with the liquid inlet end of the water tank; the fan faces the micro-channel radiator; the first temperature sensor is used for detecting the first temperature of the cooling liquid in the first chamber; the second temperature sensor is used for detecting the second temperature of the cooling liquid in the second chamber; after the automatic mode of the controller is finished, the controller is automatically switched to the standby mode, and in the standby working mode, the controller controls the fan and the water pump to operate, so that the second temperature is smaller than the safe temperature. According to the cooling system for the new energy charging pile, damage to the cooling system can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of new energy charging piles, and in particular to a cooling system for new energy charging piles. Background Art

[0002] New energy charging piles use liquid cooling to efficiently cool the charging gun, which has become more and more common.

[0003] The cooling equipment of existing new energy charging piles is directly turned off after charging is completed, and the high temperature coolant is retained in the cooling equipment, which is easy to cause the failure of the cooling equipment components. Moreover, the high coolant temperature also affects the use of the cooling equipment next time. Summary of the invention

[0004] In view of the above problems in the prior art, an object of the present invention is to provide a cooling system for a new energy charging pile, which can avoid damage to the cooling system.

[0005] In order to solve the above problems, the present invention provides a cooling system for a new energy charging pile, and the cooling system for a new energy charging pile comprises:

[0006] a water tank capable of containing a coolant;

[0007] A water pump, wherein a liquid inlet end of the water pump is connected to a liquid outlet end of the water tank;

[0008] A manifold block, the manifold block comprising a first chamber and a second chamber, the liquid inlet end of the first chamber is connected to the liquid outlet end of the water pump, the liquid outlet end of the first chamber is used to connect to the liquid inlet end of the charging gun, and the liquid inlet end of the second chamber is used to connect to the liquid outlet end of the charging gun;

[0009] A microchannel radiator, wherein the liquid inlet end of the microchannel radiator is connected to the liquid outlet end of the second chamber, and the liquid outlet end of the microchannel radiator is used to connect to the liquid inlet end of the water tank;

[0010] A fan, the fan faces the microchannel radiator to blow or suck air toward the microchannel for heat dissipation;

[0011] a first temperature sensor connected to the first chamber to detect a first temperature of the coolant in the first chamber;

[0012] a second temperature sensor connected to the second chamber to detect a second temperature of the coolant in the second chamber;

[0013] A controller is provided, wherein the controller is connected to the first temperature sensor, the second temperature sensor, the water pump and the fan to control the operation of the water pump and the fan according to the first temperature sensor and the second temperature sensor. The control modes of the controller include a standby mode and an automatic mode. The automatic mode automatically switches to the standby mode after the automatic mode ends. In the standby mode, the controller controls the operation of the fan and the water pump so that the second temperature is lower than a safety temperature. The safety temperature corresponds to the maximum temperature at which the cooling system can statically store coolant without being damaged.

[0014] Furthermore, the control mode of the controller also includes:

[0015] A self-check mode is started after the standby mode ends. After the self-check mode ends, the system automatically switches to the self-check mode. The self-check mode is used to detect whether there is a fault in the cooling system.

[0016] Furthermore, the cooling system further comprises:

[0017] A flow sensor, the flow sensor is connected to the outlet of the first chamber, and the first chamber can be connected to the inlet of the charging gun through the flow sensor to detect the flow of the coolant.

[0018] The controller is also connected to the flow sensor so as to shut down the water pump when the flow rate detected by the flow sensor is lower than a predetermined value.

[0019] Furthermore, the cooling system further comprises:

[0020] a first pipeline, wherein a liquid inlet end of the first pipeline is connected to the flow sensor, and the flow sensor can be connected to a liquid inlet end of the charging gun through the first pipeline;

[0021] A second pipeline, a liquid outlet end of the second pipeline is connected to the second chamber, and the second chamber can be connected to the liquid outlet end of the charging gun through the second pipeline.

[0022] Furthermore, the cooling system further comprises:

[0023] a third pipeline, wherein a liquid inlet end of the third pipeline is connected to the second pipeline;

[0024] A solenoid valve, wherein the liquid inlet end of the solenoid valve is connected to the liquid outlet end of the third pipeline, and the opening degree of the solenoid valve is adjustable;

[0025] The controller opens the solenoid valve according to the second temperature being lower than a predetermined value, and the lower the temperature, the greater the opening degree of the solenoid valve.

[0026] Furthermore, the controller shields the flow sensor according to the second temperature being less than a critical temperature, wherein the critical temperature corresponds to a temperature at which the flow rate detected by the flow sensor is lower than a predetermined value under normal conditions.

[0027] Furthermore, the cooling system further comprises:

[0028] a first pressure sensor connected to the first chamber to detect a first pressure of the coolant in the first chamber;

[0029] a second pressure sensor, the second pressure sensor being connected to the second chamber to detect a second pressure of the coolant in the second chamber,

[0030] The controller controls the operation of the water pump and the fan by integrating the first temperature, the second temperature, the first pressure and the second pressure.

[0031] Furthermore, the cooling system further comprises:

[0032] A third temperature sensor is connected to the controller and is used to detect the ambient temperature.

[0033] The controller controls the start-up of the water pump and the fan according to the ambient temperature.

[0034] Furthermore, the controller controls the water pump and the fan to start with different starting strategies according to the ambient temperature in different temperature ranges, and the starting strategy includes running the rotational speed of the water pump and the rotational speed of the fan.

[0035] Furthermore, the control mode of the controller also includes:

[0036] Super cooling mode, the super cooling mode can control the water pump and the fan to operate at full power.

[0037] Due to the above technical solution, the present invention has the following beneficial effects:

[0038] According to the cooling system for the new energy charging pile of the present invention, the water pump extracts the coolant in the water tank to the first chamber of the manifold block, and then flows into the liquid inlet end of the charging gun, thereby cooling the charging gun. After the coolant cools the charging gun, it flows into the second chamber of the manifold block, and then flows into the microchannel radiator. The coolant is cooled by the microchannel radiator. The fan blows or sucks air facing the microchannel radiator, which can improve the cooling efficiency of the coolant. After the coolant is cooled, it flows back to the water tank, thereby realizing the circulation cooling of the charging gun. In the automatic mode, the controller controls the operation of the water pump and the fan according to the first temperature detected by the first temperature sensor (the inlet temperature of the charging gun) and the second temperature detected by the second temperature sensor (the outlet temperature of the charging gun), so as to provide the coolant of the appropriate temperature to the charging gun. In the standby mode, the controller adjusts the operation of the water pump and the fan according to the second temperature, so that the second temperature of the coolant is less than the safe temperature. The safe temperature corresponds to the temperature at which the coolant below this temperature is statically stored, and the components will not be damaged, thereby avoiding the situation where the high temperature coolant causes damage to the cooling system. Moreover, the coolant in the cooling system is at a safe temperature and can provide coolant with a lower initial temperature to the charging gun for the next charging, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 is a structural diagram of a cooling system for a new energy charging pile according to an embodiment of the present invention;

[0041] Figure 2 yes Figure 1 A structural diagram of another perspective of a cooling system for a new energy charging pile according to an embodiment;

[0042] Figure 3 is a structural diagram of a branching block according to an embodiment of the present invention.

[0043] Reference numerals:

[0044] 100, water tank; 200, water pump; 300, manifold block; 310, first chamber; 320, second chamber; 410, first temperature sensor; 420, second temperature sensor; 430, first pressure sensor; 440, second pressure sensor; 510, microchannel radiator; 520, fan; 600, flow sensor; 710, first pipeline; 720, second pipeline; 731, third pipeline; 732, solenoid valve. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0047] Next, a cooling system for a new energy charging pile according to an embodiment of the present invention is described.

[0048] like Figures 1 to 3 As shown, the cooling system for a new energy charging pile according to an embodiment of the present invention includes: a water tank 100, a water pump 200, a branch block 300, a microchannel radiator 510, a fan 520, a first temperature sensor 410, a second temperature sensor 420 and a controller.

[0049] First, the water tank 100, the water pump 200 and the manifold block 300 are described. The water tank 100 can contain coolant. The liquid inlet end of the water pump 200 is connected to the liquid outlet end of the water tank 100. The manifold block 300 includes a first chamber 310 and a second chamber 320, the liquid inlet end of the first chamber 310 is connected to the liquid outlet end of the water pump 200, the liquid outlet end of the first chamber 310 is used to connect to the liquid inlet end of the charging gun, and the liquid inlet end of the second chamber 320 is used to connect to the liquid outlet end of the charging gun.

[0050] The water tank 100 contains coolant, and the water pump 200 draws the coolant in the water tank 100 to the first chamber 310 of the manifold block 300, and then flows from the first chamber 310 into the charging gun, thereby cooling the charging gun. After the coolant cools the charging gun, it flows into the second chamber 320 of the manifold block 300.

[0051] Next, the microchannel radiator 510 and the fan 520 are described. The liquid inlet of the microchannel radiator 510 is connected to the liquid outlet of the second chamber 320, and the liquid outlet is used to connect to the liquid inlet of the water tank 100. The fan 520 faces the microchannel radiator 510 to blow or suck air to the microchannel for heat dissipation.

[0052] The coolant flows from the second chamber 320 of the manifold block 300 into the microchannel radiator 510, and the microchannel radiator 510 dissipates heat and cools the coolant. The microchannel radiator 510 has a large heat dissipation area and can dissipate heat efficiently for the coolant. After being cooled by the microchannel radiator 510, the coolant flows back to the water tank 100 to achieve circulating cooling.

[0053] The fan 520 blows or sucks air toward the microchannel radiator 510 , which can improve the heat dissipation efficiency of the coolant.

[0054] Finally, the first temperature sensor 410, the second temperature sensor 420 and the controller are described. The first temperature sensor 410 is connected to the first chamber 310 to detect the first temperature of the coolant in the first chamber 310. The second temperature sensor 420 is connected to the second chamber 320 to detect the second temperature of the coolant in the second chamber 320. The controller is connected to the first temperature sensor 410, the second temperature sensor 420, the water pump 200 and the fan 520 to control the operation of the water pump 200 and the fan 520 according to the first temperature sensor 410 and the second temperature sensor 420. The control mode of the controller includes a standby working mode and an automatic working mode. After the automatic mode ends, it automatically switches to the standby mode. In the standby working mode, the controller controls the operation of the fan 520 and the water pump 200 so that the second temperature is less than the safety temperature. The safety temperature corresponds to the maximum temperature at which the cooling system can statically store the coolant without being damaged.

[0055] In automatic mode (corresponding to automatic charging), the controller controls the operation of the water pump 200 and the fan 520 according to the first temperature detected by the first temperature sensor 410 (the liquid inlet temperature of the charging gun) and the second temperature detected by the second temperature sensor 420 (the liquid outlet temperature of the charging gun), thereby providing coolant of appropriate temperature to the charging gun.

[0056] In standby mode (corresponding to the end of charging), the controller adjusts the operation of the water pump 200 and the fan 520 according to the second temperature, so that the second temperature of the coolant is lower than the safety temperature. The safety temperature corresponds to the maximum temperature at which the cooling system statically stores coolant below this temperature without damaging the components, thereby avoiding the situation where the high-temperature coolant damages the cooling system. Moreover, the coolant in the cooling system is below the safety temperature, and can provide coolant with a lower initial temperature to the charging gun for the next charge, thereby improving the cooling efficiency.

[0057] In the cooling system of the above new energy charging pile, the water pump 200 extracts the coolant in the water tank 100 to the first chamber 310 of the manifold block 300, and then flows into the liquid inlet end of the charging gun, thereby cooling the charging gun. After the coolant cools the charging gun, it flows into the second chamber 320 of the manifold block 300, and then flows into the microchannel radiator 510. The coolant is cooled by the microchannel radiator 510. The fan 520 blows or sucks air facing the microchannel radiator 510, which can improve the cooling efficiency of the coolant. After cooling, the coolant flows back to the water tank 100, thereby realizing the circulation cooling of the charging gun. In the automatic mode, the controller controls the operation of the water pump 200 and the fan 520 according to the first temperature detected by the first temperature sensor 410 (the liquid inlet temperature of the charging gun) and the second temperature detected by the second temperature sensor 420 (the liquid outlet temperature of the charging gun), so as to provide the coolant of suitable temperature to the charging gun. In standby mode, the controller adjusts the operation of the water pump 200 and the fan 520 according to the second temperature, so that the second temperature of the coolant is lower than the safe temperature. The safe temperature corresponds to a temperature below which the coolant is statically stored and the components will not be damaged, thereby avoiding the situation where the high-temperature coolant damages the cooling system. Moreover, the coolant in the cooling system is below the safe temperature, and can provide coolant with a lower initial temperature to the charging gun for the next charge, thereby improving the cooling efficiency.

[0058] In some embodiments of the present invention, the control mode of the controller also includes a self-test mode, which is started after the standby mode ends. After the self-test mode ends, it automatically switches to the self-test mode, and the self-test mode is used to detect whether there is a fault in the cooling system.

[0059] After the cooling system ends the standby mode, it enters the self-check mode to detect whether there is any fault in the cooling system itself. This can detect the problem in time and facilitate timely handling by relevant personnel.

[0060] In some embodiments of the present invention, the cooling system further includes a flow sensor 600. The flow sensor 600 is connected to the outlet of the first chamber 310, and the first chamber 310 can be connected to the inlet of the charging gun through the flow sensor 600 to detect the flow of the coolant. The controller is also connected to the flow sensor 600 to turn off the water pump 200 according to the flow detected by the flow sensor 600 being lower than a predetermined value.

[0061] The cooling system's pipes connecting the charging gun are bent during use, which will reduce the cross-sectional area of ​​the coolant and the flow rate. At this time, if the water pump 200 is still running, there will be a risk of pipe bursting or charging gun damage. The controller obtains that the flow rate detected by the flow sensor 600 is lower than the predetermined value, indicating that the pipe is relatively bent, and controls the water pump 200 to shut down, thereby reducing risks and improving the safety of the equipment.

[0062] In some embodiments of the present invention, the cooling system further includes a first pipeline 710 and a second pipeline 720. The liquid inlet end of the first pipeline 710 is connected to the flow sensor 600, and the flow sensor 600 can be connected to the liquid inlet end of the charging gun through the first pipeline 710. The liquid outlet end of the second pipeline 720 is connected to the second chamber 320, and the second chamber 320 can be connected to the liquid outlet end of the charging gun through the second pipeline 720.

[0063] The first pipeline 710 and the second pipeline 720 can be used to easily connect the liquid inlet and outlet of the charging gun. The flow sensor 600 is arranged between the second chamber 320 of the manifold block 300 and the second pipeline 720, and can better detect the flow of the coolant and promptly detect whether the first pipeline 710 and the second pipeline 720 have a large bend.

[0064] Further, the cooling system further includes a third pipeline 731 and a solenoid valve 732. The liquid inlet end of the third pipeline 731 is connected to the second pipeline 720. The liquid inlet end of the solenoid valve 732 is connected to the liquid outlet end of the third pipeline 731, and the opening degree of the solenoid valve 732 is adjustable. The controller opens the solenoid valve 732 according to the second temperature being lower than a predetermined value, and the lower the temperature, the greater the opening degree of the solenoid valve 732.

[0065] In the case of very low temperature (such as cold winter), the initial coolant temperature is low, the coolant flow rate is slow (for example, silicone oil is used as coolant, the lower the temperature, the slower the flow rate), the pipeline pressure is high, and the cooling of the charging gun is poor. At this time, the solenoid valve 732 is opened, and the coolant flowing out of the second pipeline 720 flows back to the water tank 100, which can reduce the pipeline pressure, increase the flow rate of the coolant, and heat the coolant faster. When the temperature rises to a certain temperature, the solenoid valve 732 is closed again, and the coolant flows into the cooling device again.

[0066] The lower the temperature of the coolant, the larger the opening of the solenoid valve 732, and more coolant directly flows into the water tank 100, which can make the coolant heat up faster. A small amount of coolant flows into the second chamber 320 of the branch block 300, which is convenient for detecting the second temperature, thereby facilitating the controller to control the opening of the solenoid valve according to the second temperature.

[0067] In some embodiments of the present invention, the controller shields the flow sensor 600 according to the second temperature being less than a critical temperature. The critical temperature corresponds to a temperature at which the flow rate detected by the flow sensor 600 is lower than a predetermined value under normal conditions.

[0068] When the temperature is lower than the critical temperature, under normal conditions (when the pipeline is normal), the coolant is thicker and the flow rate is lower, which may cause a false alarm (the flow rate is lower than the predetermined value). At this time, the shielded flow sensor 600 can accurately identify whether the pipeline is bent too much, avoiding misjudgment caused by low coolant temperature.

[0069] In some embodiments of the present invention, the cooling system further includes a first pressure sensor 430 and a second pressure sensor 440. The first pressure sensor 430 is connected to the first chamber 310 to detect a first pressure of the coolant in the first chamber 310. The second pressure sensor 440 is connected to the second chamber 320 to detect a second pressure of the coolant in the second chamber 320. The controller controls the operation of the water pump 200 and the fan 520 by combining the first temperature, the second temperature, the first pressure, and the second pressure.

[0070] The first pressure sensor 430 and the second pressure sensor 440 can detect the pressure of the coolant. The controller integrates the first temperature, the second temperature, the first pressure and the second pressure to control the operation of the water pump 200 and the fan 520, thereby avoiding damage to the cooling system due to abnormal coolant pressure and improving the safety of the cooling system.

[0071] In some embodiments of the present invention, the cooling system further includes a third temperature sensor. The third temperature sensor is connected to the controller and is used to detect the ambient temperature. The controller controls the start-up of the water pump 200 and the fan 520 according to the ambient temperature.

[0072] The controller can start up according to the ambient temperature, better meet the cooling requirements of the charging gun, avoid energy waste caused by full-power startup, and avoid low-power startup, where the coolant temperature is too high and does not meet the requirements, and fully consider the impact of the ambient temperature on the coolant temperature. After the controller controls the water pump 200 and the fan 520 to start according to the ambient temperature, it can subsequently control the operation of the water pump 200 and the fan 520 according to the first temperature sensor 410 and the second temperature sensor 420.

[0073] Furthermore, the controller controls the water pump 200 and the fan 520 to start with different starting strategies according to the ambient temperature in different temperature ranges. The starting strategy includes the speed of the water pump 200 and the speed of the fan 520.

[0074] Table 1: Correspondence between the start-up strategy of the fan 520 and the water pump 200 and the ambient temperature

[0075] Ambient temperature T≤0 0＜T≤20 20＜T≤40 T＞40 Water pump 200 rpm 40 65 65 100 Fan 520 speed 0 20 25 35

[0076] The controller controls the water pump 200 and the fan 520 to start with different starting strategies according to the ambient temperature in different temperature ranges, as shown in Table 1. In this way, the water pump 200 and the fan 520 can be started more accurately.

[0077] In some embodiments of the present invention, the control mode of the controller also includes a super cooling mode, which can control the water pump 200 and the fan 520 to operate at full power.

[0078] When the cooling device encounters some conditions (such as abnormal charging gun, etc.) and requires an emergency refrigerator, the super cooling mode (100% power operation) can be used to maximize heat dissipation and protect the charging gun.

[0079] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling system for a new energy charging pile, characterized in that: The cooling system comprises: a water tank capable of containing a coolant; A water pump, wherein a liquid inlet end of the water pump is connected to a liquid outlet end of the water tank; A manifold block, the manifold block comprising a first chamber and a second chamber, the liquid inlet end of the first chamber is connected to the liquid outlet end of the water pump, the liquid outlet end of the first chamber is used to connect to the liquid inlet end of the charging gun, and the liquid inlet end of the second chamber is used to connect to the liquid outlet end of the charging gun; A microchannel radiator, wherein the liquid inlet end of the microchannel radiator is connected to the liquid outlet end of the second chamber, and the liquid outlet end of the microchannel radiator is used to connect to the liquid inlet end of the water tank; A fan, the fan faces the microchannel radiator to blow or suck air toward the microchannel for heat dissipation; a first temperature sensor connected to the first chamber to detect a first temperature of the coolant in the first chamber; a second temperature sensor connected to the second chamber to detect a second temperature of the coolant in the second chamber; A controller is provided, wherein the controller is connected to the first temperature sensor, the second temperature sensor, the water pump and the fan to control the operation of the water pump and the fan according to the first temperature sensor and the second temperature sensor. The control modes of the controller include a standby mode and an automatic mode. The automatic mode automatically switches to the standby mode after the automatic mode ends. In the standby mode, the controller controls the operation of the fan and the water pump so that the second temperature is lower than a safety temperature. The safety temperature corresponds to the maximum temperature at which the cooling system can statically store coolant without being damaged.

2. The cooling system for a new energy charging pile according to claim 1, characterized in that: The control mode of the controller also includes: A self-check mode is started after the standby mode ends. After the self-check mode ends, the system automatically switches to the self-check mode. The self-check mode is used to detect whether there is a fault in the cooling system.

3. The cooling system for a new energy charging pile according to claim 1, characterized in that: The cooling system further comprises: A flow sensor, the flow sensor is connected to the outlet of the first chamber, and the first chamber can be connected to the inlet of the charging gun through the flow sensor to detect the flow of the coolant. The controller is also connected to the flow sensor so as to shut down the water pump when the flow rate detected by the flow sensor is lower than a predetermined value.

4. The cooling system for a new energy charging pile according to claim 3, characterized in that: The cooling system further comprises: a first pipeline, wherein a liquid inlet end of the first pipeline is connected to the flow sensor, and the flow sensor can be connected to a liquid inlet end of the charging gun through the first pipeline; A second pipeline, a liquid outlet end of the second pipeline is connected to the second chamber, and the second chamber can be connected to the liquid outlet end of the charging gun through the second pipeline.

5. The cooling system for a new energy charging pile according to claim 4, characterized in that: The cooling system further comprises: a third pipeline, wherein a liquid inlet end of the third pipeline is connected to the second pipeline; A solenoid valve, wherein the liquid inlet end of the solenoid valve is connected to the liquid outlet end of the third pipeline, and the opening degree of the solenoid valve is adjustable; The controller opens the solenoid valve according to the second temperature being lower than a predetermined value, and the lower the temperature, the greater the opening degree of the solenoid valve.

6. The cooling system for a new energy charging pile according to claim 3, characterized in that: The controller shields the flow sensor according to the second temperature being lower than a critical temperature, wherein the critical temperature corresponds to a temperature at which the flow rate detected by the flow sensor is lower than a predetermined value in a normal state.

7. The cooling system for a new energy charging pile according to claim 1, characterized in that: The cooling system further comprises: a first pressure sensor connected to the first chamber to detect a first pressure of the coolant in the first chamber; a second pressure sensor, the second pressure sensor being connected to the second chamber to detect a second pressure of the coolant in the second chamber, The controller controls the operation of the water pump and the fan by integrating the first temperature, the second temperature, the first pressure and the second pressure.

8. The cooling system for a new energy charging pile according to claim 1, characterized in that: The cooling system further comprises: A third temperature sensor is connected to the controller and is used to detect the ambient temperature. The controller controls the start-up of the water pump and the fan according to the ambient temperature.

9. The cooling system for a new energy charging pile according to claim 8, characterized in that: The controller controls the water pump and the fan to start with different starting strategies according to the ambient temperature in different temperature ranges, and the starting strategy includes running the rotation speed of the water pump and the rotation speed of the fan.

10. The cooling system for a new energy charging pile according to claim 1, characterized in that: The control mode of the controller also includes: Super cooling mode, the super cooling mode can control the water pump and the fan to operate at full power.

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