Charging pile

Abstract

The utility model discloses a charging pile, which comprises a main circuit, a charging pile, a charging pile, a charging pile and a charging pile, and is characterized in that the main circuit is provided with a gun line and a liquid storage tank; and the heating branch is connected with the main circuit in series. Therefore, by arranging the heating branch circuit, the heating branch circuit is connected with the main circuit in series, so that when the charging pile works in a low-temperature environment, the heating branch circuit can be communicated with the main circuit, the gun line can be heated by heating the cooling liquid, the gun line is deiced and softened, and user operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, in particular to a charging pile. Background Art

[0002] To address travel anxiety for new energy vehicles, many manufacturers have launched 500KW, 600KW, and 800KW superchargers, further increasing charging speeds. Compared to earlier fast chargers, liquid cooling has been adopted to dissipate heat from the charging gun and cables to address thermal runaway during supercharging.

[0003] In related technologies, when charging piles work in low-temperature environments, such as at an ambient temperature of -32°C or lower, the surface of the gun wire may freeze in low-temperature rain and snow conditions, causing the gun wire to become stiff, causing inconvenience to users in pulling out the gun for charging operations, resulting in a lower user experience. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a charging pile that can realize low-temperature heating function, and has better reliability and user experience.

[0005] The charging pile according to the embodiment of the present invention includes: a trunk line, on which a gun line and a liquid storage tank are provided; and a heating branch line, which is connected in series with the trunk line.

[0006] Therefore, by setting up a heating branch, the heating branch is connected in series with the main line. In this way, when the charging pile works in a low-temperature environment, the heating branch can be connected to the main line, so that the gun line can be heated by heating the coolant, so that the gun line can be thawed and softened, which is convenient for user operation.

[0007] In some examples of the present invention, a pump body is further provided on the trunk line.

[0008] In some examples of the present invention, the pump body is located between the liquid outlet of the liquid storage tank and the gun line.

[0009] In some examples of the present invention, a heating element is further provided on the dry road.

[0010] In some examples of the present invention, the heating element is located between the liquid outlet of the liquid storage tank and the gun line.

[0011] In some examples of the present invention, the charging pile further includes a cooling branch, which is connected in series with the trunk line. The cooling branch is provided with a radiator, and the heating branch is connected in parallel with the cooling branch.

[0012] In some examples of the present invention, a valve assembly is provided on the heating branch for controlling the parallel connection of the heating branch and the cooling branch.

[0013] In some examples of the present invention, the charging pile further includes: a shunt branch, which is connected in parallel with the gun line and is used to shunt the coolant entering the gun line.

[0014] In some examples of the present invention, a first end of the shunt branch is connected between the liquid storage tank and the gun line, and a second end of the shunt branch is connected to the liquid storage tank.

[0015] In some examples of the present invention, a heating element and a pump body are further provided on the main line, and the heating element is provided between the liquid storage tank and the pump body.

[0016] In some examples of the present invention, the first end of the diversion branch is connected between the pump body and the gun line.

[0017] In some examples of the present invention, there are multiple gun lines, and the multiple gun lines are connected in parallel.

[0018] In some examples of the present invention, the trunk line includes a first trunk line and a second trunk line, the multiple gun lines include a first gun line and a second gun line, the first trunk line is connected in parallel with the second trunk line, the first trunk line is connected in series with the cooling branch, the heating branch and the liquid storage tank, and the second trunk line is connected in series with the cooling branch, the heating branch and the liquid storage tank; the first gun line is arranged on the first trunk line, and the second gun line is arranged on the second trunk line.

[0019] In some examples of the present invention, a diverter is further provided on the main line, the diverter is provided between the pump body and the gun line, the first end of the diverter branch is connected to the diverter, and the diverter is provided in the first main line and the second main line.

[0020] In some examples of the present invention, a confluence is further provided on the trunk line, and the confluence is provided in the first trunk line and the second trunk line.

[0021] In some examples of the present invention, the second end of the diversion branch is connected to the concentrator.

[0022] In some examples of the present invention, the charging pile also includes: a first pressure sensor, which is arranged on the first main line and located between the diverter and the first gun line; and / or a second pressure sensor, which is arranged on the second main line and located between the diverter and the second gun line.

[0023] In some examples of the present invention, the charging pile further includes: a third pressure sensor, and the third pressure sensor is arranged in the diverter.

[0024] In some examples of the present invention, the charging pile further includes: a first temperature sensor, which is arranged on the first trunk line and located between the first gun line and the busbar; and / or a second temperature sensor, which is arranged on the second trunk line and located between the second gun line and the busbar.

[0025] In some examples of the present invention, the charging pile also includes: a first flow sensor, which is arranged on the first main line and located between the first gun line and the concentrator; and / or a second flow sensor, which is arranged on the second main line and located between the second gun line and the concentrator.

[0026] In some examples of the present invention, the charging pile also includes: a first one-way valve, which is arranged in the first main line and located between the diverter and the first gun line, and the first one-way valve only allows coolant to flow to the first gun line; and / or a second one-way valve, which is arranged in the second main line and located between the diverter and the second gun line, and the second one-way valve only allows coolant to flow to the second gun line.

[0027] In some examples of the present invention, the charging pile also includes: a third one-way valve, which is arranged in the first main line and located between the first gun line and the combiner, and the third one-way valve only allows coolant to flow to the combiner; and / or a fourth one-way valve, which is arranged in the second main line and located between the second gun line and the combiner, and the fourth one-way valve only allows coolant to flow to the combiner.

[0028] In some examples of the present invention, the charging pile further includes: a third temperature sensor is also provided in the liquid storage tank, and the third temperature sensor is suitable for detecting the temperature of the coolant entering the liquid storage tank.

[0029] In some examples of the present invention, the charging pile further includes: a liquid level gauge is provided in the liquid storage tank, and the liquid level gauge is suitable for detecting the liquid level of the coolant in the liquid storage tank.

[0030] In some examples of the present invention, the charging pile further includes: a heating element, a heat exchange element is provided on the trunk line, and the coolant exchanges heat with the heating element through the heat exchange element to cool the heating element.

[0031] In some examples of the present invention, the charging pile further includes: the heat exchange element is spaced apart and arranged on a side of the gun line away from the liquid storage tank.

[0032] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] Figure 1 is a schematic diagram of a charging pile according to the first embodiment of the present utility model;

[0035] Figure 2 This is a schematic diagram of a charging pile in a low-temperature startup state according to the first embodiment of the present utility model;

[0036] Figure 3 This is a schematic diagram of a charging pile in a low-temperature heating state according to the first embodiment of the present utility model;

[0037] Figure 4 This is a schematic diagram of a charging pile in a single pump failure state according to the first embodiment of the present utility model;

[0038] Figure 5 is a schematic diagram of a charging pile according to a second embodiment of the present utility model;

[0039] Figure 6 is a schematic diagram of a charging pile according to a third embodiment of the present utility model;

[0040] Figure 7 Schematic diagram of a charging pile according to a fourth embodiment of the present invention.

[0041] Reference numerals:

[0042] 100. Charging piles;

[0043] 10. Gun line; 11. First gun line; 12. Second gun line;

[0044] 20. Main line; 201. First main line; 202. Second main line; 21. Liquid storage tank; 2101. Liquid inlet; 23. Heating element; 24. Pump body; 241. First pump body; 242. Second pump body; 25. Diverter; 26. Filter element; 261. First filter element; 262. Second filter element; 27. Converger; 28. Heat exchange element; 281. First heat exchange element; 282. Second heat exchange element;

[0045] 29. First pressure sensor; 210. Second pressure sensor; 211. Third pressure sensor; 212. First temperature sensor; 213. Second temperature sensor; 214. First flow sensor; 215. Second flow sensor; 216. First one-way valve; 217. Second one-way valve; 218. Third one-way valve; 219. Fourth one-way valve; 220. Third temperature sensor; 221. Liquid level gauge; 224. First pressure and temperature sensor; 225. Second pressure and temperature sensor;

[0046] 30. Cooling branch; 31. Radiator; 311. Fan; 312. Drain valve;

[0047] 40. Heating branch; 41. Valve assembly;

[0048] 50. Heating element; 51. First heating element; 52. Second heating element;

[0049] 60. Diversion branch; 61. First end; 62. Second end. DETAILED DESCRIPTION

[0050] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0051] Reference below Figure 1-Figure 7 A charging pile 100 according to an embodiment of the present invention is described.

[0052] Combine Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, the charging pile 100 according to the present invention can mainly include: a main circuit 20 and a heating branch circuit 40. The main circuit 20 is provided with a gun line 10 and a liquid storage tank 21, and the heating branch circuit 40 is connected in series with the main circuit 20.

[0053] Specifically, the charging station 100 charges the vehicle via a charging gun, which is connected to the charging station 100 via a gun cable 10. When the charging station 100 operates in a low-temperature environment, such as -32°C or lower, the gun cable 10 may freeze in rain or snow, causing stiffness and inconvenience for the user when removing the gun for charging.

[0054] By providing the trunk line 20, the liquid storage tank 21 on the trunk line 20 can be used to store and provide coolant. By providing the heating branch line 40, the heating branch line 40 is connected in series with the trunk line 20. In this way, when the charging pile 100 works in a low-temperature environment, the heating branch line 40 can be connected to the trunk line 20, so that the coolant can enter the liquid storage tank 21 through the heating branch line 40, so that the gun line 10 can be heated by heating the coolant, that is, the low-temperature heating function of the charging pile 100 is realized, so that the surface of the gun line 10 melts ice and makes the gun line 10 soft, which is convenient for user operation.

[0055] In a low-temperature environment, the gun line 10 can be defrosted and softened in advance through the main line 20 and the heating branch line 40 by means of scheduled charging information or other signals to judge the user's charging needs, thereby reducing the user's waiting time, facilitating user operation, and improving user experience.

[0056] Therefore, by providing the heating branch 40 and connecting the heating branch 40 in series with the main line 20, when the charging pile 100 operates in a low-temperature environment, the heating branch 40 can be connected to the main line 20, thereby heating the gun line 10 at a low temperature. The gun line 10 can be heated by heating the coolant to melt the ice and soften the gun line 10, which is convenient for user operation.

[0057] Combine Figure 1-Figure 7 As shown, a pump body 24 is also provided on the trunk line 20. Specifically, the circulation of the coolant requires a power source. By providing the pump body 24 in the trunk line 20, the pump body 24 can provide circulation power for the coolant in the trunk line 20, allowing the coolant to flow in the trunk line 20 and further flow to the heating branch 40, thereby realizing the circulation of the coolant, ensuring the heat dissipation function of the charging pile 100 and ensuring the low-temperature heating function of the charging pile 100.

[0058] Further, combined with Figure 1-Figure 7 As shown, the pump body 24 is located between the liquid outlet of the liquid storage tank 21 and the gun line 10. In this way, the pump body 24 can pump the coolant flowing out of the liquid storage tank 21 to the gun line 10, and further, selectively return it to the liquid storage tank 21 through the heating branch 40, thereby ensuring the circulation of the coolant and ensuring the normal operation of the charging pile 100.

[0059] Combine Figure 1-Figure 7 As shown, a heating element 23 is further provided on the trunk line 20. Specifically, by providing the heating element 23 on the trunk line 20, the heating element 23 can heat the coolant. On the one hand, the viscosity of the coolant can be adjusted and the circulation resistance of the coolant can be reduced. On the other hand, the coolant with increased temperature can enter the gun line 10 and heat the gun line 10. This can effectively melt the frost on the surface of the gun line 10 and soften the gun line 10, thereby facilitating the use of the user.

[0060] Further, combined with Figure 1-Figure 7 As shown, the heating element 23 is located between the liquid outlet of the liquid storage tank 21 and the gun line 10. In this way, when the heating element 23 needs to be activated, the heating element 23 can heat the coolant flowing out of the liquid storage tank 21. The heated coolant can then enter the gun line 10 to heat the gun line 10, thereby reducing the heat loss of the coolant during flow, increasing the softening speed of the gun line 10, and improving the softening effect of the gun line 10.

[0061] Combine Figure 1-Figure 7 As shown, the charging pile 100 may further include a cooling branch 30 , which is connected in series with the trunk line 20 . The cooling branch 30 is provided with a radiator 31 , and the heating branch 40 is connected in parallel with the cooling branch 30 .

[0062] Specifically, during charging, current flows through the charging cable 10 and the charging gun, generating heat. By providing a cooling branch 30, the radiator 31 on the cooling branch 30 can exchange heat with the external environment. Furthermore, by placing the charging cable 10 on the main circuit 20 and connecting the cooling branch 30 and the main circuit 20 in series, low-temperature coolant flowing from the reservoir 21 can flow to the charging cable 10. This low-temperature coolant then exchanges heat with the charging cable 10 to form high-temperature coolant, which then flows into the radiator 31. There, the high-temperature coolant exchanges heat with the external environment, becoming low-temperature coolant, which then returns to the reservoir 21.

[0063] In this way, the coolant can circulate in the main circuit 20 and the cooling branch circuit 30 , and the coolant can continuously cool the gun line 10 , thereby preventing thermal runaway of the charging gun and the gun line 10 and ensuring the normal operation of the charging pile 100 .

[0064] A fan 311 may be provided corresponding to the radiator 31 to accelerate air flow, improve heat dissipation efficiency, and thereby improve cooling efficiency of the gun line 10. Furthermore, a drain valve 312 is provided on the radiator 31 to drain the coolant in the radiator 31.

[0065] Furthermore, because the radiator 31 is exposed to a low-temperature environment, if the coolant flows through the radiator 31, a large amount of heat will be transferred to the environment through the radiator 31, resulting in significant heat loss. By connecting the heating branch 40 and the cooling branch 30 in parallel, when the charging pile 100 operates in a low-temperature environment, the heating branch 40 can be connected to the main circuit 20, allowing the coolant to bypass the radiator 31 through the heating branch 40 and enter the liquid storage tank 21, thereby reducing heat loss. It is also understood that after the gun line 10 is softened, the main circuit 20 and the cooling branch 30 can be connected to ensure the cooling effect on the gun line 10.

[0066] Combine Figures 1-6 As shown, a valve assembly 41 is provided on the heating branch 40 to control the parallel connection of the heating branch 40 and the cooling branch 30. Specifically, by providing the valve assembly 41 on the heating branch 40, the valve assembly 41 can function to open and close the heating branch 40, thereby facilitating the operation of the heating branch 40 and controlling the parallel connection of the heating branch 40 and the cooling branch 30, making the charging pile 100 more intelligent and reliable. The valve assembly 41 includes, but is not limited to, a solenoid valve.

[0067] Combine Figure 1 、 Figure 2 、 Figure 5 and Figure 6 As shown, the charging pile 100 may further include: a shunt branch 60 , which is connected in parallel with the gun line 10 and is used to shunt the coolant entering the gun line 10 .

[0068] Specifically, considering the low-temperature startup condition, the charging pile 100 operates in a low-temperature environment, such as an ambient temperature of -20°C or lower. During the startup of the trunk line 20, the coolant has a high viscosity at low temperatures, resulting in high flow resistance. The power provided by the pump body 24 may not be able to directly promote the circulation of the coolant, making it difficult or impossible to start the pump body 24. The cooling circuit cannot cool the gun line 10 in time, which may cause the gun line 10 to overheat.

[0069] By providing the shunt branch 60 and connecting the shunt branch 60 in parallel with the gun line 10, the shunt branch 60 can be used to divert the coolant entering the gun line 10 in a low temperature environment, so that the coolant can avoid the gun line 10, shortening the circulation path of the coolant, thereby allowing the coolant to circulate and making it easier to start the pump body 24 at low temperatures.

[0070] Combine Figure 1 、 Figure 5 and Figure 6 As shown, the first end 61 of the shunt branch 60 is connected between the liquid storage tank 21 and the gun line 10, and the second end 62 of the shunt branch 60 is connected to the liquid storage tank 21. With this arrangement, when the shunt branch 60 is in operation, the oil in the liquid storage tank 21 can selectively enter the shunt branch 60 through the first end 61 of the shunt branch 60 and further return to the liquid storage tank 21, avoiding entering the gun line 10, or selectively directly enter the gun line 10 and further return to the liquid storage tank 21. In this way, the shunt branch 60 and the gun line 10 can be connected in parallel, so that the shunt branch 60 can realize the function of diverting the coolant entering the gun line 10, making the architecture of the entire circuit simple and reliable.

[0071] It should be noted that the first end 61 of the shunt branch 60 may be directly connected to the liquid storage tank 21 , or may be connected to the liquid storage tank 21 through the radiator 31 .

[0072] In a specific embodiment of the present application, Figures 1-6 As shown, the first end 61 of the shunt branch 60 is connected to the liquid storage tank 21 through the radiator 31, that is, the first end 61 of the shunt branch 60 is first connected to the radiator 31, and the radiator 31 is connected to the liquid storage tank 21. In this way, in a low temperature environment, the power of the pump body 24 can be fully used to promote the flow of coolant in the radiator 31 through the operation of the shunt branch 60.

[0073] Furthermore, the coolant in the gun line 10 has a low temperature and a large flow resistance in the initial stage, and the coolant cannot flow. However, as the charging gun works, the heat of the gun line 10 is transferred to the coolant in the gun, the viscosity of the coolant gradually decreases, and the flow resistance gradually decreases. Since the pump body 24 has been started at this time and the coolant in the radiator 31 has been circulated, the flow resistance of the entire circuit also decreases as the coolant temperature increases. At this time, the connection between the shunt branch 60 and the main line 20 can be disconnected, allowing the coolant to enter the gun line 10 for circulation and cool the gun line 10, and the charging pile 100 enters a normal cooling state.

[0074] Combine Figure 1-Figure 7 As shown, a heater 23 and a pump body 24 are further provided on the trunk line 20, and the heater 23 is provided between the liquid storage tank 21 and the pump body 24. Specifically, by providing the heater 23 between the liquid storage tank 21 and the pump body 24, the coolant flowing out of the liquid storage tank 21 can be heated by the heater 23, and the heated coolant then enters the pump body 24. This can prevent the coolant entering the pump body 24 from having excessive viscosity, which would result in a decrease in the working efficiency of the pump body 24, thereby ensuring the good operating state of the pump body 24 and improving the working performance of the charging pile 100.

[0075] Combine Figures 1-6 As shown, the first end 61 of the branch 60 is connected between the pump body 24 and the gun line 10. Specifically, by connecting the first end 61 of the branch 60 between the pump body 24 and the gun line 10, the coolant circulates between at least a portion of the main line 20 and the branch 60, and the portion of the main line 20 is provided with the liquid storage tank 21, the heating element 23 and the pump body 24.

[0076] On the one hand, the pump body 24 can drive the coolant to circulate between this part of the main line 20 and the branch line 60. The path of the loop formed by this part of the main line 20 and the branch line 60 is shorter, the starting resistance of the pump body 24 is smaller, and the starting of the pump body 24 is easier.

[0077] On the other hand, whether to activate the heating element 23 can also be determined based on the viscosity parameters of the coolant. When the heating element 23 needs to be activated, it can heat the coolant. The heated coolant can directly enter the radiator 31 through the shunt branch 60. This can quickly heat the coolant in the radiator 31, not only increasing the fluidity of the coolant, but also melting frost on the surface of the radiator 31. This can further assist in low-temperature startup of the charging pile 100 and improve the reliability of the charging pile 100.

[0078] Combine Figure 1-Figure 7 As shown, the charging pile 100 may further include a filter element 26, which is connected between the liquid storage tank 21 and the heater 23. Specifically, when the coolant flows in the main path 20 and the branch path 60, it can carry away impurities in the main path 20 and the branch path 60. By connecting the filter element 26 between the liquid storage tank 21 and the heater 23, the coolant flowing out of the liquid storage tank 21 will first be filtered by the filter element 26 before flowing to the heater 23 and the pump body 24, preventing impurities in the coolant from flowing to the heater 23 and the pump body 24 and causing damage to the heater 23 and the pump body 24, thereby ensuring the normal operation of the charging pile 100 and improving the reliability of the charging pile 100.

[0079] Combine Figures 1-6 As shown, the charging pile 100 may further include: a heating element 50 , and a heat exchange element 28 is further provided on the trunk line 20 , and the coolant exchanges heat with the heating element 50 through the heat exchange element 28 to cool the heating element 50 .

[0080] Specifically, when the charging pile 100 charges a vehicle, in addition to the charging gun that generates heat, there are also heating elements 50 such as components and copper busbars. By making the main line 20 also include a heat exchange element 28, the heat exchange element 28 is arranged adjacent to the heating element 50, so that the coolant can flow to the heat exchange element 28 and perform heat exchange with the heating element 50 to achieve cooling of the heating element 50. This not only ensures the cooling of the charging gun, but also takes into account the simultaneous cooling of other heating elements 50, which can improve the reliability of the charging pile 100.

[0081] Furthermore, the heat exchange element 28 is spaced apart and arranged on the side of the gun line 10 away from the liquid storage tank 21, so that the coolant can first flow into the gun line 10 to cool the gun line 10, and then flow into the heat exchange element 28 to exchange heat with the heating element 50, thereby optimizing the relative arrangement position of the heating element 50 and the gun line 10, making full use of the heat difference between the coolant and the gun line 10 and the heating element 50, and realizing effective heat dissipation of the gun line 10 and the heating element 50.

[0082] Combine Figure 1-Figure 7As shown, there are multiple gun lines 10, and the multiple gun lines 10 are connected in parallel. Specifically, multiple charging guns can be set in the charging pile 100, and each charging gun is correspondingly provided with a gun line 10, and the multiple gun lines 10 are connected in parallel, so that the charging needs of multiple users can be met.

[0083] In some embodiments of the present invention, Figure 1-Figure 7 As shown, the trunk 20 may include a first trunk 201 and a second trunk 202, and the plurality of gun lines 10 may include a first gun line 11 and a second gun line 12. The first trunk 201 is connected in parallel with the second trunk 202, the first trunk 201 is connected in series with the cooling branch 30, the heating branch 40 and the liquid storage tank 21, and the second trunk 202 is connected in series with the cooling branch 30, the heating branch 40 and the liquid storage tank 21. The first gun line 11 is provided on the first trunk 201, and the second gun line 12 is provided on the second trunk 202.

[0084] In this way, on the one hand, the first main line 201 can be connected in series with the heating branch 40 and the liquid storage tank 21 to achieve heating and softening of the first gun line 11 and even the first charging gun at low temperatures, and the second main line 202 can be connected in series with the heating branch 40 and the liquid storage tank 21 to achieve heating and softening of the second gun line 12 and even the second charging gun at low temperatures.

[0085] On the other hand, the first main line 201 can be connected in series with the cooling branch 30 and the liquid storage tank 21 to achieve cooling of the first gun line 11 and even the first charging gun. The second main line 202 can be connected in series with the cooling branch 30 and the liquid storage tank 21 to achieve cooling of the second gun line 12 and even the second charging gun.

[0086] Correspondingly, two filters 26 can be provided, namely a first filter 261 and a second filter 262, which are respectively connected to the heating element 23. Also, since there are two gun lines 10, there are also two corresponding heating elements 50, namely a first heating element 51 and a second heating element 52, so two heat exchange elements 28 can also be provided, namely a first heat exchange element 281 and a second heat exchange element 282, the first heat exchange element 281 is suitable for cooling the first heating element 51, and the second heat exchange element 282 is suitable for cooling the first heating element 51.

[0087] Combine Figures 1-6 As shown, a diverter 25 is further provided on the main line 20 , and the diverter 25 is provided between the pump body 24 and the gun line 10 . The first end 61 of the diverter branch 60 is connected to the diverter 25 , and the diverter 25 is provided in the first main line 201 and the second main line 202 .

[0088] Specifically, a diverter 25 may be provided, wherein multiple channels are provided in the diverter 25 , and the diverter 25 has the functions of switching channels and controlling the flow of channels.

[0089] By setting the diverter 25 in the first trunk 201 and the second trunk 202, connecting the inlet of the diverter 25 with the outlet of the liquid storage tank 21, and connecting the outlet of the diverter 25 with the first end 61 of the diverter branch 60, the first trunk 201 and the second trunk 202, the coolant flowing out of the liquid storage tank 21 can be selectively entered into the diverter branch 60 under the action of the diverter 25 according to the actual working conditions to meet the starting requirements at low temperatures, or selectively enter the first trunk 201 to meet the cooling requirements of the first gun line 11 at normal or high temperatures, or selectively enter the second trunk 202 to meet the cooling requirements of the second gun line 12 at normal or high temperatures, thereby making the charging pile 100 more intelligent and controllable.

[0090] Combine Figures 1-6 As shown, a concentrator 27 is further provided on the trunk 20 , and the concentrator 27 is provided in the first trunk 201 and the second trunk 202 . The heating branch 40 is connected in series with the concentrator 27 , and the cooling branch 30 is connected in series with the concentrator 27 .

[0091] Specifically, by setting the confluence 27 in the first trunk 201 and the second trunk 202, the inlet of the confluence 27 is connected to the first trunk 201 and the second trunk 202 respectively, so that the coolant of the first trunk 201 and the coolant of the second trunk 202 can be merged at the confluence 27.

[0092] Moreover, by connecting the heating branch 40 in series with the confluence 27, and connecting the cooling branch 30 in series with the confluence 27, that is, the confluence 27 can serve as a connection point between the trunk 20 and the heating branch 40 and the cooling branch 30 respectively. In this way, the coolant of the first trunk 201 and the coolant of the second trunk 202 can selectively enter the cooling branch 30 or the heating branch 40 after merging at the confluence 27, so that the first gun line 11 and the second gun line 12 can share a radiator 31 and a liquid storage tank 21, which can simplify the architecture of the entire circuit and reduce the number of components.

[0093] Further, combined with Figures 1-6 As shown, the second end 62 of the shunt branch 60 is connected to the confluence 27, so that the confluence 27 can also serve as the connection point between the main line 20 and the shunt branch 60. The coolant in the shunt branch 60 and the coolant in the main line 20 can be merged at the confluence 27, and then selectively enter the cooling branch 30 or the heating branch 40, thereby making the architecture of the entire loop simpler and further improving the reliability of the charging pile 100.

[0094] Combine Figure 1-Figure 7 As shown, the number of pump bodies 24 can also be set to two, and both pump bodies 24 are connected to the inlet of the diverter 25, so that several of the two pump bodies 24 can be selectively driven to provide power for coolant for several of the two gun lines 10, and the two pump bodies 24 can be used as backup for each other, which can not only improve the reliability of the charging pile 100, but also improve the scalability of the charging pile 100.

[0095] Thus, the charging pile 100 has two guns and two pumps, and can switch to different operating states according to actual operating conditions. The operating conditions of the charging pile 100 include but are not limited to the dual-gun rated power supercharging condition, the single-gun boosted power supercharging condition, the dual-gun low-power fast charging condition, and the single-pump fault condition.

[0096] Dual-gun rated power supercharging operation. Specifically, when the charging gun is operating normally at rated supercharging power (typically charging current 400A-600A), the pumps 24 operate independently, with a single pump tube cooling each gun. Specifically, the flow divider 25 is controlled so that the first pump 241 supplies and controls the flow of coolant to the first gun line 11, while the second pump 242 supplies and controls the flow of coolant to the second gun line 12. The charging pile 100 operates in a dual-pump, dual-gun cooling mode. This allows for independent control of the first and second gun lines 11, 12, more precise and simplified flow distribution, and minimizes the impact of differing cooling requirements on the two guns. Furthermore, this reduces the requirements for each pump 24, allowing for smaller pump sizes. When operating with a single gun, the pump can operate within its optimal operating range, reducing redundant pump 24 capacity.

[0097] Single-charger boost power supercharging operation. Specifically, when the charging gun is operating at boost power (charging current 600A-1000A or above), dual pumps provide cooling for the single gun. For example, if the first charging gun is boosted, its cooling requirements increase significantly, and the cooling flow provided by a single pump cannot meet the cooling needs. In this case, by controlling the diverter 25, the first pump body 241 and the second pump body 242 simultaneously provide flow to cool the first gun line 11, improving the cooling capacity of the first charging gun and thus meeting the cooling requirements of the boost power charging. The second charging gun, however, can still achieve conventional fast charging capabilities through power distribution. At this time, the cooling requirements of the second charging gun are minimal, and the diverter 25 is used to distribute flow to the second gun line 12.

[0098] Dual-gun low-power fast charging operation. Specifically, during dual-gun low-power fast charging, the cooling demand is minimal. When a single pump provides cooling for each gun, the cooling flow required by the pump body 24 is very small, placing the pump body 24 in a suboptimal operating range with low speed and low efficiency. Alternatively, when the pump body 24 is cooling at high speed and high flow, the gun line 10 temperature drops rapidly, causing the pump body 24 to stop rotating. When the gun line 10 temperature rises and the pump body 24 restarts, this causes the pump body 24 to start and stop repeatedly, shortening its lifespan. If the pump body 24 does not stop, maintaining a constant speed will waste its capacity. In this case, one of the first and second pump bodies 241, 242 can be activated to provide cooling for both guns. This ensures that the cooling demand is met, not only does the active pump body 24 operate in its optimal operating range for maximum efficiency, but the other pump body 24 can also be deactivated, saving energy for one pump body 24. This significantly reduces the time the pump body 24 operates in its low-speed, low-efficiency operating range, extending its lifespan and saving energy.

[0099] Single pump failure operating condition. Specifically, when one pump body 24 fails, such as when the second pump body 242 fails, the first pump body 241 can provide power, and the flow direction of the coolant can be adjusted by the diverter 25 to selectively provide coolant to the first gun line 11 and the second gun line 12. In this way, the first pump body 241 can be used to cool both guns, or the first pump body 241 can be used to cool the first gun line 11 alone, or the first pump body 241 can be used to cool the second gun line 12 alone. This ensures that both the first and second charging guns are properly cooled, ensuring the normal operation of the entire charging pile 100 and increasing the safety and reliability of the charging pile 100. It is understood that if the first pump body 241 fails, the first pump body 241 can also ensure the normal cooling of both the first and second charging guns. In other words, the two pumps can serve as backup for each other, which can improve the reliability and compatibility of the charging pile 100.

[0100] In some embodiments of the present invention, Figures 1-6 As shown, the charging pile 100 may further include: a first pressure sensor 29, which is arranged on the first trunk line 201 and located between the diverter 25 and the first gun line 11, so that the first pressure sensor 29 can detect and feedback the pressure of the coolant at the inlet of the first gun line 11 in real time, thereby protecting the pressure safety of the first trunk line 201. In addition, the charging pile 100 may further include: a second pressure sensor 210, which is arranged on the second trunk line 202 and located between the diverter 25 and the second gun line 12, so that the second pressure sensor 210 can detect and feedback the pressure of the coolant at the inlet of the second gun line 12 in real time, thereby protecting the pressure safety of the second trunk line 202.

[0101] In another embodiment of the present invention, Figure 7As shown, the charging pile 100 may further include: a third pressure sensor 211, which is disposed in the diverter 25. In this way, the first pressure sensor 29 can detect and feedback the pressure of the coolant at the inlet of the first gun line 11 or the inlet of the second gun line 12 in real time, thereby protecting the pressure safety of the first trunk line 201 and the second trunk line 202.

[0102] Combine Figure 5-Figure 6 As shown, the charging pile 100 may further include: a first temperature sensor 212, which is arranged on the first trunk line 201 and between the first gun line 11 and the confluence 27. After the coolant flows out from the outlet of the first gun line 11, it will first pass through the first temperature sensor 212 and then flow to the confluence 27. In this way, the first temperature sensor 212 can detect the temperature of the coolant at the outlet of the first gun line 11, and the temperature of the coolant at the outlet of the first gun line 11 can reflect the temperature of the first gun line 11, so that not only can the operation of the pump body 24 and the fan 311 be adjusted in time according to the detected temperature to meet the cooling demand of the first charging gun, but also whether the detected temperature value is abnormally increased can be used to assist in judging whether the first gun line 11 is blocked.

[0103] In addition, the charging pile 100 may further include: a second temperature sensor 213, which is arranged on the second trunk line 202 and between the second gun line 12 and the confluence 27. After the coolant flows out from the outlet of the second gun line 12, it will first pass through the second temperature sensor 213, and then flow to the confluence 27 through the confluence 27. In this way, the second temperature sensor 213 can detect the temperature of the coolant at the outlet of the second gun line 12, and the temperature of the coolant at the outlet of the second gun line 12 can reflect the temperature of the second gun line 12, so that not only can the operation of the pump body 24 and the fan 311 be adjusted in time according to the detected temperature to meet the cooling needs of the second charging gun, but also whether the detected temperature value is abnormally increased can be used to assist in judging whether the second gun line 12 is blocked.

[0104] It should be noted that, in other embodiments of the present invention, Figures 1-4 As shown, the first temperature sensor 212 can be replaced by a first pressure-temperature sensor 224. This allows the sensor to detect not only temperature but also pressure, and can be used in conjunction with the first pressure sensor 29 to detect the pressure drop of the first trunk line 201 and reflect whether the first trunk line 201 is blocked. Furthermore, the first temperature sensor 212 can be replaced by a second pressure-temperature sensor 225. This allows the sensor to detect not only temperature but also pressure, and can be used in conjunction with the second pressure sensor 210 to detect the pressure drop of the second trunk line 202 and reflect whether the second trunk line 202 is blocked.

[0105] Combine Figure 1 、 Figure 4 and Figure 6 As shown, the charging pile 100 may further include: a first flow sensor 214, which is arranged on the first trunk line 201 and located between the first gun line 11 and the confluence 27. After the coolant flows out from the outlet of the first gun line 11, it will first pass through the first flow sensor 214, and then flow to the radiator 31 through the confluence 27. In this way, the first flow sensor 214 can detect and determine whether there is coolant flowing in the first gun line 11, thereby assisting in determining whether the first gun line 11 is blocked.

[0106] In addition, the charging pile 100 may further include: a second flow sensor 215, which is arranged on the second trunk line 202 and is located between the second gun line 12 and the confluence 27. After the coolant flows out from the outlet of the second gun line 12, it will first pass through the second flow sensor 215 and then flow to the radiator 31 through the confluence 27. In this way, the second flow sensor 215 can detect and determine whether there is coolant flowing in the second gun line 12, thereby assisting in determining whether the second gun line 12 is blocked.

[0107] Combine Figure 1 、 Figure 4 and Figure 5 As shown, the charging pile 100 may further include: a first one-way valve 216, which is arranged in the first trunk line 201 and located between the diverter 25 and the first gun line 11, so as to only allow the coolant flowing out of the diverter 25 to flow to the first gun line 11, thereby limiting the flow direction of the coolant between the outlet of the diverter 25 and the inlet of the first gun line 11, and preventing the coolant in the first gun line 11 from flowing back to the diverter 25.

[0108] In addition, the charging pile 100 may further include: a second one-way valve 217, which is arranged in the second trunk line 202 and located between the diverter 25 and the second gun line 12, so as to only allow the coolant flowing out of the diverter 25 to flow to the second gun line 12, so as to limit the flow direction of the coolant between the outlet of the diverter 25 and the inlet of the second gun line 12, and prevent the coolant in the second gun line 12 from flowing back to the diverter 25.

[0109] Combine Figure 1 、 Figure 4 and Figure 5 As shown, the charging pile 100 may further include: a third one-way valve 218, which is arranged in the first trunk line 201 and located between the first gun line 11 and the confluence 27 to only allow the coolant flowing out of the first gun line 11 to flow to the confluence 27, so as to limit the flow direction of the coolant between the outlet of the first gun line 11 and the inlet of the confluence 27, and prevent the coolant from flowing back from the outlet of the first gun line 11.

[0110] In addition, the charging pile 100 may further include: a fourth one-way valve 219, which is arranged in the second trunk line 202 and located between the second gun line 12 and the confluence 27 to only allow the coolant flowing out of the second gun line 12 to flow to the confluence 27, so as to limit the flow direction of the coolant between the outlet of the second gun line 12 and the inlet of the confluence 27, and prevent the coolant from flowing back from the outlet of the second gun line 12.

[0111] In this way, by disposing the first one-way valve 216, the second one-way valve 217, the third one-way valve 218, and the fourth one-way valve 219, the pressure states of the first trunk 201 where the first gun line 11 is located and the second trunk 202 where the second gun line 12 is located can be independent of each other.

[0112] Furthermore, only the abnormal pressure values detected by the first pressure sensor 29 and the second pressure sensor 210 are needed to quickly locate the failure of the first gun line 11 or the second gun line 12, and the first temperature sensor 212 and the second temperature sensor 213, or the first flow sensor 214 and the second flow sensor 215 are used to determine whether the gun line 10 is blocked, thereby quickly detecting the state of the gun line 10 and quickly locating the fault position of the gun line 10.

[0113] For example, assuming that the first gun line 11 is clogged, the pressure value of the first pressure sensor 29 will suddenly increase, while the pressure value of the second pressure sensor 210 will remain basically unchanged. The abnormal pressure value of the first pressure sensor 29 can quickly locate that the first gun line 11 is faulty. At the same time, the flow value of the first flow sensor 214 or the temperature value of the first temperature sensor 212 can further determine that the first gun line 11 is clogged, so that the first gun line 11 can be directly repaired.

[0114] As described above, the charging pile 100 may include at least the first embodiment, the second embodiment, the third embodiment and the fourth embodiment.

[0115] Combine Figure 1 As shown, the first embodiment is provided with a main line 20, a cooling branch line 30, a diverter branch line 60, and a heating branch line 40. In addition to the gun line 10, the liquid storage tank 21, the filter element 26, the heater 23, the pump body 24, the diverter 25, the gun line 10, the confluence 27, and the radiator 31, the main line 20 is also provided with a first heat exchange element 281, a second heat exchange element 282, a first pressure sensor 29, a second pressure sensor 210, a first pressure and temperature sensor 224, a second pressure and temperature sensor 225, a first flow sensor 214, a second flow sensor 215, a first one-way valve 216, a second one-way valve 217, a third one-way valve 218, and a fourth one-way valve 219.

[0116] In this way, on the one hand, by setting the shunt branch 60 and the heating branch 40, the heating demand and starting demand of the charging pile 100 in a low temperature environment can be met, the applicable scenarios of the charging pile 100 can be expanded, and the user experience can be improved.

[0117] On the other hand, by providing the radiator 31 , the first heating element 51 and the second heating element 52 , not only can the cooling of the charging gun be guaranteed, but also the cooling of other heating elements 50 can be taken into account at the same time, thereby improving the reliability of the charging pile 100 .

[0118] On the other hand, by disposing the first one-way valve 216, the second one-way valve 217, the third one-way valve 218, and the fourth one-way valve 219, the pressure states of the circuit where the first gun line 11 and the circuit where the second gun line 12 are located do not affect each other. Only by detecting the abnormal pressure value of the first pressure sensor 29 and the second pressure sensor 210, the first gun line 11 or the second gun line 12 can be quickly located. The first temperature sensor 212 and the second temperature sensor 213, as well as the first flow sensor 214 and the second flow sensor 215, can be used to determine whether the gun line 10 is blocked, thereby quickly detecting the state of the gun line 10 and quickly locating the fault position of the gun line 10, and the detection reliability and effectiveness of the gun line 10 blockage are high.

[0119] Combine Figure 5 As shown, compared with the first embodiment, in the second embodiment, the first flow sensor 214 and the second flow sensor 215 are cancelled, and the first pressure and temperature sensor 224 is cancelled at the outlet of the first gun line 11 and a first temperature sensor 212 is provided, and the second pressure and temperature sensor 225 is cancelled at the outlet of the second gun line 12 and a second temperature sensor 213 is provided.

[0120] As such, due to the configuration of the first, second, third, and fourth one-way valves 216, 217, 218, and 219, the pressures detected by the first pressure sensor 29 and the second pressure sensor 210 do not affect each other. When dual guns are operating simultaneously, the pressure values from the first and second pressure sensors 29, 210 can be used to quickly determine if the first or second gun line 11, 12 is clogged. Abnormally high temperatures from the first and second temperature sensors 212, 213 can also aid in determining if the first or second gun line 11, 12 is clogged.

[0121] Combine Figure 6As shown, compared with the first embodiment, in the third embodiment, the first one-way valve 216, the second one-way valve 217, the third one-way valve 218 and the fourth one-way valve 219 are cancelled, which can reduce the flow resistance, and the first pressure and temperature sensor 224 is cancelled at the outlet of the first gun line 11 and the first temperature sensor 212 is provided, and the second pressure and temperature sensor 225 is cancelled at the outlet of the second gun line 12 and the second temperature sensor 213 is provided.

[0122] Thus, when two guns are working simultaneously, due to the rapid response of the pressure sensors, the pressure values of the first pressure sensor 29 and the second pressure sensor 210 can be used to quickly determine whether the gun line 10 is blocked. However, because the pressure values of the first pressure sensor 29 and the second pressure sensor 210 affect each other and are substantially the same, it is impossible to quickly determine whether the first gun line 11 or the second gun line 12 is blocked. The flow rate changes of the first flow sensor 214 and the second flow sensor 215 can be used to quickly determine whether the first gun line 11 or the second gun line 12 is blocked. Abnormally high temperature values of the first temperature sensor 212 and the second temperature sensor 213 can assist in determining whether the first gun line 11 or the second gun line 12 is blocked.

[0123] Combine Figure 7 As shown, compared with the first embodiment, in the fourth embodiment, the first one-way valve 216, the second one-way valve 217, the third one-way valve 218 and the fourth one-way valve 219 are cancelled, which can reduce the flow resistance, and the first pressure and temperature sensor 224 is cancelled at the outlet of the first gun line 11 and the first temperature sensor 212 is provided, the second pressure and temperature sensor 225 is cancelled at the outlet of the second gun line 12 and the second temperature sensor 213 is provided, and the first pressure sensor 29 and the second pressure sensor 210 are cancelled, and a third pressure sensor 211 is provided in the diverter 25, and the diversion branch 60 and the heating branch 40 are cancelled.

[0124] In this way, on the one hand, the cooling of the heating element 50 in the charging pile 100 is not considered, the structure is simple, the cost is low, and it is suitable for application in normal temperature or high temperature environments. On the other hand, when the two guns are working at the same time, the pressure value of the third pressure sensor 211 can reflect whether the gun line 10 is blocked, but it is impossible to quickly locate whether the first gun line 11 or the second gun line 12 is blocked. It is necessary to close the pipeline where one of the first gun line 11 and the second gun line 12 is located to perform a secondary detection to determine whether the first gun line 11 or the second gun line 12 is blocked. The abnormal increase in the temperature value of the first temperature sensor 212 and the second temperature sensor 213 can assist in determining whether the first gun line 11 or the second gun line 12 is blocked.

[0125] Combine Figure 1-Figure 7As shown, a third temperature sensor 220 is further provided in the liquid storage tank 21. The third temperature sensor 220 is suitable for detecting the temperature of the coolant entering the liquid storage tank 21. Specifically, by providing the third temperature sensor 220 in the liquid storage tank 21, the third temperature sensor 220 can detect and provide feedback on the temperature of the coolant in the liquid storage tank 21 in real time. The speed of the fan 311 can also be adjusted in real time according to the temperature of the coolant. This allows the coolant temperature to be always controlled within a set range, ensuring that the charging pile 100 fully cools the charging gun, making the charging pile 100 more intelligent and reliable.

[0126] Combine Figure 1-Figure 7 As shown, a liquid level gauge 221 is also provided in the liquid storage tank 21. The liquid level gauge 221 is suitable for detecting the liquid level of the coolant in the liquid storage tank 21. Specifically, the coolant will be lost when flowing in the charging pile 100. If the flow of the coolant is insufficient, the cooling performance of the charging pile 100 will be reduced. By further providing a liquid level gauge 221 in the liquid storage tank 21, the liquid level gauge 221 can monitor the liquid level of the coolant in the liquid storage tank 21 in real time, so that when the liquid level of the liquid storage tank 21 is low, an alarm is issued to remind the staff to replenish the coolant in time to ensure the normal operation of the charging pile 100. Among them, a liquid replenishing port 2101 can be provided on the liquid storage tank 21, and the staff can replenish the coolant through the liquid replenishing port 2101.

[0127] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0128] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0129] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A charging pile, characterized in that: include: A trunk line (20), wherein a gun line (10) and a liquid storage tank (21) are provided on the trunk line (20); A heating branch circuit (40) is connected in series with the main circuit (20).

2. The charging pile according to claim 1, characterized in that: A pump body (24) is also provided on the trunk line (20).

3. The charging pile according to claim 2, characterized in that: The pump body (24) is located between the liquid outlet of the liquid storage tank (21) and the gun line (10).

4. The charging pile according to claim 1, characterized in that: A heating element (23) is also provided on the trunk line (20).

5. The charging pile according to claim 4, characterized in that: The heating element (23) is located between the liquid outlet of the liquid storage tank (21) and the gun line (10).

6. The charging pile according to claim 1, characterized in that: It also includes a cooling branch (30), the cooling branch (30) is connected in series with the trunk line (20), the cooling branch (30) is provided with a radiator (31), and the heating branch (40) is connected in parallel with the cooling branch (30).

7. The charging pile according to claim 6, characterized in that: The heating branch (40) is provided with a valve assembly (41) for controlling the parallel connection of the heating branch (40) and the cooling branch (30).

8. The charging pile according to claim 6, characterized in that: Also includes: A shunt branch (60) is connected in parallel with the gun line (10) and is used to shunt the coolant entering the gun line (10).

9. The charging pile according to claim 8, characterized in that: The first end (61) of the shunt branch (60) is connected between the liquid storage tank (21) and the gun line (10), and the second end (62) of the shunt branch (60) is connected to the liquid storage tank (21).

10. The charging pile according to claim 9, characterized in that: A heating element (23) and a pump body (24) are also provided on the trunk line (20), and the heating element (23) is provided between the liquid storage tank (21) and the pump body (24).

11. The charging pile according to claim 10, characterized in that: The first end (61) of the diversion branch (60) is connected between the pump body (24) and the gun line (10).

12. The charging pile according to claim 10, characterized in that: There are multiple gun lines (10), and the multiple gun lines (10) are connected in parallel.

13. The charging pile according to claim 12, characterized in that: The trunk line (20) includes a first trunk line (201) and a second trunk line (202); the plurality of gun lines (10) include a first gun line (11) and a second gun line (12); the first trunk line (201) and the second trunk line (202) are connected in parallel; the first trunk line (201) and the cooling branch line (30), the heating branch line (40) and the liquid storage tank (21) are connected in series; and the second trunk line (202) and the cooling branch line (30), the heating branch line (40) and the liquid storage tank (21) are connected in series; The first gun line (11) is provided on the first trunk line (201), and the second gun line (12) is provided on the second trunk line (202).

14. The charging pile according to claim 13, characterized in that: A diverter (25) is further provided on the main line (20), and the diverter (25) is provided between the pump body (24) and the gun line (10). The first end (61) of the diverter branch (60) is connected to the diverter (25), and the diverter (25) is provided in the first main line (201) and the second main line (202).

15. The charging pile according to claim 14, characterized in that: A flow combiner (27) is also provided on the trunk line (20), and the flow combiner (27) is provided in the first trunk line (201) and the second trunk line (202).

16. The charging pile according to claim 15, characterized in that: The second end (62) of the diversion branch (60) is connected to the concentrator (27).

17. The charging pile according to claim 15, characterized in that: Also includes: a first pressure sensor (29), the first pressure sensor (29) being arranged in the first trunk line (201) and located between the diverter (25) and the first gun line (11); and / or A second pressure sensor (210) is provided on the second trunk line (202) and is located between the diverter (25) and the second gun line (12).

18. The charging pile according to claim 15, characterized in that: Also includes: A third pressure sensor (211), the third pressure sensor (211) is arranged in the diverter (25).

19. The charging pile according to claim 15, characterized in that: Also includes: a first temperature sensor (212), the first temperature sensor (212) being arranged on the first trunk line (201) and located between the first gun line (11) and the confluence (27); and / or A second temperature sensor (213), the second temperature sensor (213) is arranged on the second trunk line (202), and is located between the second gun line (12) and the confluence (27).

20. The charging pile according to claim 15, characterized in that: Also includes: a first flow sensor (214), the first flow sensor (214) being arranged on the first trunk line (201) and located between the first gun line (11) and the flow combiner (27); and / or A second flow sensor (215), the second flow sensor (215) is arranged on the second trunk line (202) and is located between the second gun line (12) and the flow combiner (27).

21. The charging pile according to claim 15, characterized in that: Also includes: a first one-way valve (216), the first one-way valve (216) being provided in the first trunk line (201) and being located between the diverter (25) and the first gun line (11), the first one-way valve (216) only allowing coolant to flow toward the first gun line (11); and / or A second one-way valve (217), the second one-way valve (217) is provided in the second trunk line (202) and is located between the diverter (25) and the second gun line (12), and the second one-way valve (217) only allows coolant to flow to the second gun line (12).

22. The charging pile according to claim 15, characterized in that: Also includes: a third one-way valve (218), the third one-way valve (218) being provided in the first trunk line (201) and being located between the first gun line (11) and the manifold (27), the third one-way valve (218) only allowing coolant to flow toward the manifold (27); and / or A fourth one-way valve (219) is provided on the second trunk line (202) and is located between the second gun line (12) and the flow combiner (27). The fourth one-way valve (219) only allows the coolant to flow toward the flow combiner (27).

23. The charging pile according to claim 1, characterized in that: A third temperature sensor (220) is also provided in the liquid storage tank (21), and the third temperature sensor (220) is suitable for detecting the temperature of the coolant entering the liquid storage tank (21).

24. The charging pile according to claim 1, characterized in that: A liquid level meter (221) is provided in the liquid storage tank (21), and the liquid level meter (221) is suitable for detecting the liquid level of the coolant in the liquid storage tank (21).

25. The charging pile according to claim 1, characterized in that: Also includes: A heat-generating element (50) is provided on the trunk line (20), and a heat-exchanging element (28) is provided on the trunk line (20). The coolant exchanges heat with the heat-generating element (50) through the heat-exchanging element (28) to cool the heat-generating element (50).

26. The charging pile according to claim 25, characterized in that: The heat exchange element (28) is spaced apart and arranged on a side of the gun line (10) away from the liquid storage tank (21).

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