Charging pile and charging system

Abstract

The application provides a charging pile and a charging system, and belongs to the technical field of charging. The charging pile comprises an electrical bin used for accommodating electrical elements. A first fan is arranged on a side wall of the electrical bin, and a blowing side of the first fan is arranged towards the electrical elements. The side wall provided with the first fan comprises an inner wall and an outer wall, and the first fan is arranged on the inner wall. An air duct is arranged between the inner wall and the outer wall. An air inlet and an air outlet of the air duct are both communicated with the electrical bin, and the air outlet is arranged opposite to a suction side of the first fan. In this way, the hot air in the air duct can be forced to exchange heat with the outer wall, so that the heat dissipation efficiency of the electrical bin is improved.

Description

Technical Field

[0001] This application relates to the field of charging technology, and in particular to a charging pile and a charging system. Background Technology

[0002] The charging station includes a charging cable, and a charging gun is installed at the end of the charging cable. The charging gun is used to plug into the vehicle to supply power to the vehicle.

[0003] As the charging power of charging piles increases, the heat generated by the charging piles also increases, which requires the charging piles to have higher heat dissipation efficiency. Utility Model Content

[0004] This application provides a charging pile and a charging system. The charging pile has high heat dissipation efficiency. The technical solutions for the charging pile and the charging system are described below.

[0005] In a first aspect, this application provides a charging pile. The charging pile includes an electrical compartment for housing electrical components. A first fan is disposed on the side wall of the electrical compartment, with the air supply side of the first fan facing the electrical components. The side wall with the first fan includes an inner wall and an outer wall, with the first fan disposed on the inner wall. An air duct is disposed between the inner wall and the outer wall, with both the air inlet and outlet of the air duct connected to the electrical compartment, and the air outlet being disposed opposite to the air intake side of the first fan.

[0006] The technical solution provided in this application allows for the circulation of hot air within the electrical compartment during the operation of the first fan, flowing along the air supply side of the first fan, through the electrical components, the air inlet, the air duct, and the air outlet back to the air inlet side of the first fan. As the hot air flows along the air duct, forced convection heat transfer occurs between the hot air and the outer wall, resulting in efficient cooling of the hot air in the air duct (i.e., the hot air within the electrical compartment) by the outer wall, thereby improving the heat dissipation efficiency of the electrical compartment and the charging terminal. Furthermore, by ensuring that both the air inlet and outlet of the air duct connect to the interior of the electrical compartment, while preventing the air duct from connecting to the outside of the electrical compartment, the electrical compartment exhibits excellent sealing performance.

[0007] In one implementation, the side wall with the first fan is set as a door.

[0008] The technical solution provided in this application has two advantages. First, since the compartment door is independent of the main body of the charging pile and is generally small in size, it is easier to process the inner and outer walls by including the compartment door. Second, since there are relatively few electrical components installed on the compartment door, including the inner and outer walls of the compartment door has minimal impact on the installation of the electrical components.

[0009] In one implementation, the electrical components include a switching circuit, one end of which is connected to the power module, and the other end of which is connected to a charging cable. The charging cable includes a charging gun. The charging station is a charging terminal that draws power from the power module of the charging host and supplies power to the vehicle via the charging cable. The switching circuit is used to disconnect the electrical connection between the power module and the charging cable in case of abnormal conditions, and includes switching devices such as contactors or circuit breakers.

[0010] In one implementation, the switching circuit includes a switch and a connecting copper busbar. One end of the switch is connected to the power module, and the other end is connected to the charging cable via the connecting copper busbar. The air duct includes two air outlets and two sets of air inlets. The two air outlets are spaced apart along the height of the charging pile. One set of air inlets is positioned higher than the upper air outlet, and the other set of air inlets is positioned lower than the lower air outlet. Each set of air inlets includes at least one air inlet. There are two first fans, with the suction sides of the two first fans facing the two air outlets respectively, and the air delivery sides of the two first fans facing the switch and the connection point between the connecting copper busbar and the charging cable respectively. The switch can be a contactor.

[0011] The technical solution provided in this application addresses two common hot spots in a switching circuit: the switch itself (e.g., a contactor) and the connection point between the copper busbar and the charging cable. Therefore, by directing airflow from two first fans towards the switch and the connection point, the heat dissipation efficiency of the electrical compartment is further improved. Furthermore, by configuring the air duct with two sets of air inlets—one set positioned higher than the upper air outlet and the other lower than the lower air outlet—two airflow cycles are created within the electrical compartment. One cycle runs from the lower first fan's supply side, through the switch, the lower air inlet, the air duct, the lower air outlet, to the lower first fan's suction side. The other cycle runs from the upper first fan's supply side, through the connection point between the copper busbar and the charging cable, the upper air inlet, the air duct, the upper air outlet, to the upper first fan's suction side. These two airflow cycles do not interfere with each other.

[0012] In one implementation, the electrical components include a power module for converting alternating current (AC) to direct current (DC). The charging station is an integrated charging station.

[0013] In one implementation, the sidewall of the electrical compartment includes a first sub-sidewall and a second sub-sidewall arranged adjacent to each other. Electrical components are disposed on the first sub-sidewall, and a first fan is disposed on the second sub-sidewall. The second sub-sidewall includes an inner wall and an outer wall, and the inner wall of the second sub-sidewall is provided with an air inlet and an air outlet.

[0014] In one implementation, the sidewall of the charging compartment further includes a third sub-sidewall and a fourth sub-sidewall, with the third sub-sidewall positioned opposite to the first sub-sidewall and the fourth sub-sidewall positioned opposite to the second sub-sidewall. The charging station also includes a screen assembly and a charging gun structure. The screen assembly and the charging gun structure are respectively disposed on the third and fourth sub-sidewalls, or both the screen assembly and the charging gun structure are disposed on one of the third and fourth sub-sidewalls.

[0015] The technical solution provided in this application, because the electrical components are located on the first sub-sidewall and the second sub-sidewall includes both inner and outer walls, makes it inconvenient to install the screen assembly and the gun insertion structure. Therefore, by placing the screen assembly and the gun insertion structure on the third or fourth sub-sidewall, it is beneficial to arrange and install the screen assembly and the gun insertion structure.

[0016] In one implementation, the sidewall of the electrical compartment includes a first sub-sidewall and a third sub-sidewall disposed opposite to each other. Electrical components are disposed on the first sub-sidewall, and a first fan is disposed on the third sub-sidewall. The third sub-sidewall includes an inner wall and an outer wall, with an air inlet and an air outlet on the inner wall. This arrangement ensures that the first fan faces the electrical components directly, facilitating airflow from the first fan towards the electrical components.

[0017] In one implementation, the sidewall of the electrical compartment includes a first sub-sidewall, a second sub-sidewall, a third sub-sidewall, and a fourth sub-sidewall connected sequentially. The first and third sub-sidewalls are positioned opposite each other, and the second and fourth sub-sidewalls are positioned opposite each other. Electrical components are disposed on the first sub-sidewall, and a first fan is disposed on the third sub-sidewall. Each of the second, third, and fourth sub-sidewalls includes an inner wall and an outer wall. The inner walls of the second and fourth sub-sidewalls are provided with air inlets, and the inner wall of the third sub-sidewall is provided with an air outlet.

[0018] The technical solution provided in this application, through the aforementioned arrangement, enables forced convection heat transfer to occur in the air ducts of the second, third, and fourth sub-side walls, thereby increasing the area of ​​forced convection heat transfer. This further improves the heat dissipation efficiency of the electrical compartment.

[0019] In one implementation, the charging station also includes a heat exchange chamber to house heat dissipation equipment for cooling electrical components. The heat exchange chamber and the electrical component chamber are arranged along the height of the charging station. This improves the heat dissipation efficiency of the charging station.

[0020] In one implementation, the heat dissipation device includes a liquid cooling box and a radiator, with the liquid cooling box connected to a liquid cooling pipe in the charging cable. The radiator is used to cool the liquid cooling box.

[0021] In one implementation, heat exchange fins are installed inside the air duct, connected to the outer wall, and extend along the height direction of the charging pile.

[0022] The technical solution provided in this application increases the area of ​​forced convection between hot air in the air duct and the outer wall by connecting the heat exchange fins to the outer wall. Furthermore, by extending the heat exchange fins along the height of the charging pile, the obstruction of the heat exchange fins to the hot air is reduced.

[0023] Secondly, this application provides a charging pile. The charging pile includes an electrical compartment for housing electrical components and a heat exchange compartment for housing heat dissipation equipment. The heat dissipation equipment is used to cool the electrical components. The heat exchange compartment and the electrical compartment are arranged along the height direction of the charging pile. The side wall of the electrical compartment includes an inner wall and an outer wall, with an air duct between the inner wall and the outer wall. The air inlet of the air duct connects to the outside of the charging pile, and the air duct connects to the heat exchange compartment. The side wall of the heat exchange compartment is provided with a ventilation opening connecting to the outside.

[0024] The technical solution provided in this application allows external cold air to enter the air duct through the air inlet, then flow into the heat exchange chamber, and finally flow out through the vents of the heat exchange chamber. During the flow of the external cold air through the air duct, forced convection heat exchange occurs between the cold air and the inner wall, thus efficiently cooling the inner wall, which in turn cools the hot air inside the electrical compartment, thereby improving the heat dissipation efficiency of the electrical compartment and the charging pile. Furthermore, by connecting the air duct to the outside of the electrical compartment, while keeping the electrical compartment itself isolated from the outside, the electrical compartment maintains excellent sealing performance.

[0025] In one implementation, a second fan is also provided in the heat exchange chamber to blow air towards the heat dissipation equipment. Driven by the second fan, external cold air flows into the air duct from the air inlet, and then into the heat exchange chamber through the air outlet, blowing towards the heat dissipation equipment. The hot air, heated by the heat dissipation equipment, is blown out through the vents. Driven by the second fan, the external cold air flows through the air duct and undergoes forced convection heat exchange with the inner wall.

[0026] In one implementation, along the arrangement of the electrical compartment and the heat exchange compartment, the length of the outer wall is greater than the length of the inner wall. A portion of the outer wall is used to enclose the heat exchange compartment, and another portion, together with the inner wall, is used to enclose the air duct. In this way, the cold air in the air duct enters the heat exchange compartment directly from one end of the air duct, resulting in smoother airflow.

[0027] In one implementation, the heat exchange chamber is located below the electrical compartment.

[0028] The technical solution provided in this application has an air inlet located on the side wall of the electrical compartment, so the air inlet is positioned higher than the ventilation opening of the heat exchange compartment. This prevents hot air from the ventilation opening of the first charging pile from easily entering the interior of the heat exchange compartment through the air inlet of the second charging pile when two charging piles are installed side-by-side, thus avoiding thermal cascading.

[0029] In one implementation, a first fan is installed inside the electrical compartment, with its air supply side facing the electrical components. The air inlet is positioned higher than the first fan. This higher air inlet position results in a higher air duct height, which increases the area for convective heat transfer and improves the heat exchange efficiency inside the electrical compartment.

[0030] In one implementation, the sidewall containing the electrical component is positioned opposite or adjacent to a sidewall that includes both an inner and an outer wall. This facilitates the secure fixing of the electrical component to the sidewall.

[0031] In one implementation, the sidewall containing the vent is positioned opposite to a sidewall that includes both an inner and outer wall. This allows the intake side of the second fan to face the sidewall including both the inner and outer walls, while the supply side faces the vent. This facilitates smooth airflow.

[0032] In one implementation, the charging station also includes a screen assembly, with the sidewall containing the screen assembly being disposed adjacent to a sidewall that includes an inner wall and an outer wall.

[0033] The technical solution provided in this application addresses the issue that users need to operate the screen assembly while using the charging station, requiring them to stand in front of the side wall where the screen assembly is located. This makes it inconvenient to install ventilation openings on the side wall, as hot air would blow towards the user. Furthermore, since the screen assembly needs to be secured, it's also inconvenient to have inner and outer walls on the side wall, as this would affect the installation. Therefore, this application arranges the side wall where the screen assembly is located adjacent to a side wall that includes both inner and outer walls. This facilitates the securing of the screen assembly and improves the user experience.

[0034] In one implementation, the side wall, which has an inner wall and an outer wall, serves as the storage door.

[0035] The technical solution provided in this application has two advantages. First, since the compartment door is independent of the main body of the charging pile and is generally small in size, it is easier to process the inner and outer walls by including the compartment door. Second, generally speaking, there are few electrical components installed on the compartment door, so including the inner and outer walls of the compartment door has little impact on the installation of the electrical components.

[0036] In one implementation, heat exchange fins are installed inside the air duct, connected to the inner wall, and extending along the height direction of the charging pile.

[0037] The technical solution provided in this application increases the area of ​​forced convection between the cold air and the inner wall in the air duct by connecting the heat exchange fins to the inner wall. Furthermore, by extending the heat exchange fins along the height of the charging pile, the obstruction of the heat exchange fins to the cold air is reduced.

[0038] Thirdly, this application provides a charging system. The charging system includes a charging host and multiple charging piles as described in either the first or second aspect, wherein the charging host supplies power to each charging pile. The charging system is a split-type charging pile, and the charging pile is a charging terminal. The charging host includes a power module for converting AC power to DC power and outputting the DC power to each charging pile. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of a charging system;

[0040] Figure 2 This is a schematic diagram of an integrated charging station;

[0041] Figure 3 This is a schematic diagram of a charging terminal using air-cooled charging cables in related technologies;

[0042] Figure 4 This is a schematic diagram of a charging terminal using liquid-cooled charging cables in related technologies;

[0043] Figure 5 yes Figure 4 A schematic diagram showing the arrangement of the two charging terminals;

[0044] Figure 6 This is a side view of a charging terminal using an air-cooled charging cable provided in an embodiment of this application;

[0045] Figure 7 This is a schematic diagram of a switching circuit provided in an embodiment of this application;

[0046] Figure 8 This is a three-dimensional schematic diagram of a charging terminal provided in an embodiment of this application;

[0047] Figure 9 This is a top view of a charging terminal provided in an embodiment of this application;

[0048] Figure 10 yes Figure 9 A three-dimensional schematic diagram of the charging terminal is shown;

[0049] Figure 11 This is a top view of another charging terminal provided in an embodiment of this application;

[0050] Figure 12 yes Figure 11 A three-dimensional schematic diagram of the charging terminal is shown;

[0051] Figure 13 This is a top view of another charging terminal provided in an embodiment of this application;

[0052] Figure 14This is a top view of another charging terminal provided in an embodiment of this application;

[0053] Figure 15 This is a side view of a charging terminal using a liquid-cooled charging cable provided in an embodiment of this application;

[0054] Figure 16 This is a side view of another charging terminal using a liquid-cooled charging cable provided in an embodiment of this application;

[0055] Figure 17 yes Figure 16 A schematic diagram showing the arrangement of the two charging terminals;

[0056] Figure 18 This is a three-dimensional schematic diagram of another charging terminal provided in an embodiment of this application;

[0057] Figure 19 This is a top view of another charging terminal provided in an embodiment of this application;

[0058] Figure 20 This is a side view of another charging terminal using a liquid-cooled charging cable provided in an embodiment of this application.

[0059] Legend

[0060] 100. Charging host; 1000. Power module; 200. Charging terminal; 300. Connecting cable;

[0061] 1. Shell; 101. Electrical compartment; 102. Heat exchange compartment; 11. Bottom wall; 12. Top wall; 13. Air duct; 130. Heat exchange fins; 131. First sub-side wall; 132. Second sub-side wall; 133. Third sub-side wall; 134. Fourth sub-side wall; 1301. Inner wall; 1302. Outer wall; 1303. Air inlet; 1304. Air outlet; 1305. Ventilation opening; 14. Partition.

[0062] 2. Switching circuit; 20. Connecting copper busbar; 21. Contactor; 22. Fuse; 23. Shunt.

[0063] 3. Charging cable; 30. Charging gun; 31. Wire; 32. Liquid cooling pipe;

[0064] 4. First fan;

[0065] 5. Screen components;

[0066] 6. Auxiliary power module;

[0067] 7. Heat dissipation equipment; 71. Liquid cooling box; 72. Radiator;

[0068] 8. Second fan;

[0069] 9. Gun insertion structure;

[0070] 10. Resetter. Detailed Implementation

[0071] With the rapid development of the new energy vehicle industry, vehicle charging equipment has also developed rapidly. Figure 1 A schematic diagram of a charging system is shown, such as Figure 1 As shown, the charging system includes a charging host 100 and multiple charging piles 200. The charging host 100 is electrically connected to the multiple charging piles 200 via multiple connecting cables 300, and is used to supply power to the multiple charging piles 200 via the multiple connecting cables 300. The charging host 100 includes a power module 1000, which is used to convert AC power to DC power and output DC power to the multiple charging piles 200 via the connecting cables 300. Each charging pile 200 includes a charging cable 3, one end of which is equipped with a charging gun 30, which is used to plug into the vehicle's charging socket to charge the vehicle. Figure 1 The charging system shown can also be called a split-type charging pile. Figure 1 The charging pile 200 shown can also be called a charging terminal.

[0072] Figure 2 A schematic diagram of an integrated charging station is shown, such as... Figure 2 As shown, the charging pile 200 includes a power module 1000 and a charging cable 3. The power module 1000 is used to convert AC power into DC power and to supply power to the vehicle through the charging cable 3 and the charging gun 30.

[0073] As users demand faster charging speeds, the power consumption of the charging pile 200 increases, leading to greater heat generation and necessitating higher heat dissipation efficiency. In related technologies, some charging piles 200 use natural air cooling for their charging cables 3, while others employ liquid cooling, meaning the charging cables 3 have internal liquid cooling pipes 32. The heat dissipation methods for these two types of charging piles 200 will be described below with examples.

[0074] Figure 3 A schematic diagram of a charging pile 200 employing an air-cooled charging cable 3, as shown in related technologies, is illustrated. Figure 2As shown, the charging pile 200 includes a housing 1, a switching circuit 2, and a charging cable 3. The housing 1 includes a bottom wall 11, a top wall 12, and multiple side walls, which together form an electrical compartment 101. The switching circuit 2 is located inside the electrical compartment 101. One end of the switching circuit 2 is electrically connected to the power module 1000 (connecting cable 300 in the figure), and the other end is electrically connected to the charging cable 3. The switching circuit 2 is used to disconnect the electrical connection between the charging cable 3 and the connecting cable 300 in case of abnormal conditions (such as line overload), thereby de-energizing the charging pile 200. The switching circuit 2 is the main heat-generating component of the charging pile 200 and generates a large amount of heat. Therefore, to improve the heat dissipation efficiency of the switching circuit 2, a first fan 4 is installed inside the electrical compartment 101, blowing air towards the switching circuit 2.

[0075] However, although a first fan 4 is provided, the airflow inside the electrical compartment 101 is still relatively chaotic, resulting in low heat exchange efficiency between the side wall and the hot air inside the electrical compartment 101, as well as the cold air outside, and low heat dissipation efficiency of the electrical compartment 101.

[0076] Figure 4 A schematic diagram of a charging station 200 employing a liquid-cooled charging cable 3, as shown in related technologies, is illustrated. Figure 4 As shown, the charging pile 200 includes a housing 1, a switching circuit 2, a charging cable 3, a first fan 4, a partition 14, a heat dissipation device 7, and a second fan 8. The partition 14 is located inside the housing 1 and divides the interior of the housing 1 into an electrical compartment 101 and a heat exchange compartment 102. The switching circuit 2 is located inside the electrical compartment 101, with one end electrically connected to the connection cable 300 of the charging host 100 and the other end electrically connected to the charging cable 3. The first fan 4 is located inside the electrical compartment 101 and blows air towards the switching circuit 2.

[0077] The heat dissipation device 7 is located in the heat exchange chamber 102. The heat dissipation device 7 includes a liquid cooling box 71 and a radiator 72. The liquid cooling box 71 is connected to two liquid cooling pipes 32 of the charging cable 3. One of the two liquid cooling pipes 32 is an inlet pipe, and the other is an outlet pipe. The radiator 72 is used to cool the coolant inside the liquid cooling box 71. The specific connection method between the radiator 72 and the liquid cooling box 71 can adopt existing connection methods in related technologies; this application embodiment does not specifically limit or describe them. Ventilation openings 1305 are provided on two opposite side walls of the heat exchange chamber 102, and the radiator 72 is located between the two ventilation openings 1305. A second fan 8 is located between the radiator 72 and one ventilation opening 1305 and is used to blow air towards the radiator 72.

[0078] However, Figure 4 The charging pile 200 shown has the following technical problems. First, it is related to... Figure 3The charging pile 200 shown has the same technical problem: the airflow inside the electrical compartment 101 is still relatively chaotic, resulting in low heat exchange efficiency between the side wall and the hot air inside the electrical compartment 101, as well as the cold air outside, and poor heat dissipation efficiency of the electrical compartment 101.

[0079] Second, such as Figure 5 As shown, when two charging piles 200 are placed side by side, the hot air blown out of the vent 1305 of the heat exchange chamber 102 of the first charging pile 200 can easily enter the heat exchange chamber 102 of the second charging pile 200. This results in a thermal cascading phenomenon, causing the air temperature in the heat exchange chamber 102 of the second charging pile 200 to be higher, which is not conducive to the heat dissipation of the radiator 72.

[0080] It should be noted that, Figures 3-5 Taking charging pile 200 as an example, the heat dissipation of charging pile 200 is explained. Even when charging pile 200 is an integrated charging pile, the technical problem of poor heat dissipation still exists. For example, the heat dissipation of electrical components (such as power module 1000) in the electrical compartment 101 of the integrated charging pile is also poor. Furthermore, the heat exchange compartment 102 of the integrated charging pile also suffers from thermal cascading.

[0081] In view of the above-mentioned technical problems, this application provides a novel charging pile 200, which can at least solve the technical problem of low heat dissipation efficiency of the electrical compartment 101. The charging pile 200 provided in this application embodiment will be described below by way of example. The charging pile 200 is a charging terminal or an integrated charging pile; the accompanying drawings of this application embodiment use the charging pile 200 as an example of a charging terminal for illustration.

[0082] like Figure 6 As shown, the charging pile 200 includes a structure for housing electrical components. Figure 6 The electrical compartment 101 of the switch circuit 2) is located in the middle. A first fan 4 is installed on the side wall of the electrical compartment 101, with the air supply side of the first fan 4 facing the electrical components. The side wall with the first fan 4 includes an inner wall 1301 and an outer wall 1302. The first fan 4 is located on the inner wall 1301. An air duct 13 is provided between the inner wall 1301 and the outer wall 1302. The air inlet 1303 and the air outlet 1304 of the air duct 13 are both connected to the electrical compartment 101, and the air outlet 1304 is positioned opposite to the air intake side of the first fan 4.

[0083] For example, such as Figure 6 As shown, the distance d between the inner wall 1301 and the outer wall 1302 is greater than 10mm and less than 40mm. The height can be the same as the height of the electrical compartment 101 to make the best use of the heat dissipation area of ​​the side wall of the electrical compartment 101.

[0084] The technical solutions provided in the embodiments of this application, such as Figure 6 As shown, during the operation of the first fan 4, the hot air inside the electrical compartment 101 circulates along the air supply side of the first fan 4, through electrical components (such as the switching circuit 2), the air inlet 1303, the air duct 13, the air outlet 1304, and finally to the air intake side of the first fan 4. During the flow of hot air along the air duct 13, forced convection heat exchange occurs between the hot air inside the air duct 13 and the outer wall 1302, thus efficiently cooling the hot air in the air duct 13 (i.e., the hot air inside the electrical compartment 101) by the outer wall 1302, thereby improving the heat dissipation efficiency of the electrical compartment 101. Furthermore, because the air circulates along this route, the airflow from the first fan 4 is relatively large, which also improves the heat dissipation efficiency of the electrical compartment 101. In addition, since both the air inlet 1303 and the air outlet 1304 of the air duct 13 are connected to the electrical compartment 101 but not to the outside, the electrical compartment 101 has good sealing performance. For example, it achieves an IP55 protection rating.

[0085] In some examples, where the charging station 200 is an integrated charging station, the electrical component is the power module 1000. The first fan 4 is used to blow air towards the power module 1000.

[0086] In some examples, such as Figure 6 As shown, in the case where the charging pile 200 is a charging terminal, the electrical components include a switching circuit 2. One end of the switching circuit 2 is used to connect to the power module 1000 (i.e., the connecting cable 300), and the other end is connected to the charging cable 3, which includes a charging gun 30.

[0087] Figure 7 A schematic diagram of a switching circuit 2 is shown. (For example...) Figure 7 As shown, the switching circuit 2 includes a positive circuit and a negative circuit. In some examples, both the positive and negative circuits include at least a contactor 21, one end of which is connected to the connecting cable 300, and the other end is connected to the charging cable 3 via a connecting copper busbar 20. Specifically, the wire 31 connecting the charging cable 3.

[0088] In some examples, such as Figure 7 As shown, the positive circuit also includes a fuse 22. The other end of the contactor 21 is connected to one end of the fuse 22 via a connecting copper busbar 20, and the other end of the fuse 22 is connected to the charging cable 3 via the connecting copper busbar 20. Specifically, the positive wire of the charging cable 3 is connected.

[0089] In some examples, such as Figure 7 As shown, the negative circuit also includes a shunt 23. The other end of the contactor 21 is connected to one end of the shunt 23 via a connecting copper busbar 20, and the other end of the shunt 23 is connected to the charging cable 3 via the connecting copper busbar 20. Specifically, the negative wire of the charging cable 3 is connected.

[0090] In some examples, such as Figure 7 As shown, the electrical compartment 101 is equipped with two switching circuits 2. Thus, a single charging station 200 can include two charging cables 3, which are electrically connected to the two switching circuits 2 respectively.

[0091] Actual measurements revealed that switch circuit 2 has two types of hot spots (i.e., locations with high heat generation), such as... Figure 7 As shown in the circular dashed box, one type of hot spot is the switch (such as contactor 21), or the connection point between the switch and the connecting copper busbar 20. Another type of hot spot is the connection between the charging cable 3 (wire 31) and the connecting copper busbar 20.

[0092] from Figure 7 As can be seen, the distance between the two types of hotspots is relatively large. Therefore, in order to improve the heat dissipation efficiency of these two types of hotspots, in some examples, such as... Figure 6 As shown, there are two first fans 4, and the air duct 13 includes two air outlets 1304. The suction sides of the two first fans 4 face the two air outlets 1304 respectively, and the air delivery sides of the two first fans 4 face the connection between the switch, the connecting copper busbar 20 and the charging cable 3 respectively. In this way, the two first fans 4 can blow air towards the connection between the switch, the connecting copper busbar 20 and the charging cable 3 respectively, thereby improving the heat dissipation efficiency of these two types of hot spots.

[0093] In some examples, such as Figure 6 As shown, two air outlets 1304 are spaced apart along the height direction. The air duct 13 includes two sets of air inlets 1303, one set of air inlets 1303 positioned higher than the upper air outlet 1304, and the other set of air inlets 1303 positioned lower than the lower air outlet 1304. Each set of air inlets 1303 includes at least one air inlet 1303. Thus, as... Figure 6 As shown, there are two airflow cycles inside the electrical compartment 101. One cycle runs from the lower air supply side of the first fan 4, through the contactor 21, the lower air inlet 1303, the air duct 13, the lower air outlet 1304, to the lower air intake side of the first fan 4. The other cycle runs from the upper air supply side of the first fan 4, through the connection between the charging cable 3 and the connecting copper busbar 20, the upper air inlet 1303, the air duct 13, the upper air outlet 1304, to the upper air intake side of the first fan 4. These two airflow cycles do not interfere with each other.

[0094] In some examples, the interior of the air duct 13 is provided with baffles that divide the air duct 13 into two sub-air ducts arranged along the height direction. Each sub-air duct includes an air outlet 1304 and a set of air inlets 1303 corresponding to the air outlet 1304.

[0095] Besides the aforementioned technical solution of setting two first fans 4, in other examples, the electrical compartment 101 is provided with one first fan 4, which faces the contactor 21, or faces the connection between the charging cable 3 and the connecting copper busbar 20, or faces the position between the contactor 21 and the connection between the charging cable 3 and the connecting copper busbar 20. In this technical solution, the air inlet 1303 is located above or below the air outlet 1304. Alternatively, at least one air inlet 1303 is located above the air outlet 1304, and at least one air inlet 1303 is located below the air outlet 1304.

[0096] This application does not limit which side wall of the electrical compartment 101 is provided with the air duct 13. In some examples, the side wall of the electrical compartment 101 includes a first sub-side wall 131, and the electrical components are located on the first sub-side wall 131. Then, any side wall of the electrical compartment 101 other than the first sub-side wall 131 is provided with the air duct 13 so that the first fan 4 can blow air towards the switching circuit 2. Of course, the first sub-side wall 131 can also include an inner wall 1301 and an outer wall 1302, and the air outlet 1304 can be located on the inner wall 1301 of other side walls, which can also achieve the first fan 4 blowing air towards the electrical components.

[0097] In some examples, such as Figure 6 and Figure 8 As shown, the sidewall of the electrical compartment 101 includes a first sub-sidewall 131 and a third sub-sidewall 133 arranged opposite each other. Electrical components are disposed on the first sub-sidewall 131, and a first fan 4 is disposed on the third sub-sidewall 133. The third sub-sidewall 133 includes an inner wall 1301 and an outer wall 1302. The inner wall 1301 of the third sub-sidewall 133 is provided with an air inlet 1303 and an air outlet 1304. Thus, the sidewall where the first fan 4 is located is directly opposite the sidewall where the electrical components are located, facilitating the first fan 4 to blow air towards the electrical components.

[0098] In some examples, such as Figure 6 and Figure 8 As shown, the inner wall 1301 of the third sub-side wall 133 includes two air inlets 1303 and two air outlets 1304, with the two air outlets 1304 located between the two air inlets 1303 along the height direction. For example, as shown... Figure 8 As shown, the air inlet 1303 is located directly above or directly below the air outlet 1304.

[0099] In some examples, such as Figure 6 and Figure 8As shown, the sidewall of the electrical compartment 101 also includes a second sub-sidewall 132 and a fourth sub-sidewall 134 disposed opposite to each other. The second sub-sidewall 132 or the fourth sub-sidewall 134 may house a screen assembly 5, an auxiliary power module 6, or a charging gun structure 9. This allows the screen assembly 5, the auxiliary power module 6, or the charging gun structure 9 to be separated from the electrical components and the first fan 4 (i.e., disposed on different sidewalls), which is beneficial for the layout of the internal components of the electrical compartment 101. The charging gun structure 9 is used to connect to the charging gun 30. The auxiliary power module 6 is used to supply power to low-voltage electrical components such as the first fan 4 and the screen assembly 5.

[0100] In some examples, such as Figure 9 and Figure 10 As shown, the sidewall of the electrical compartment 101 includes a first sub-sidewall 131, a second sub-sidewall 132, a third sub-sidewall 133, and a fourth sub-sidewall 134 connected in sequence. The first sub-sidewall 131 and the third sub-sidewall 133 are arranged opposite to each other, and the second sub-sidewall 132 and the fourth sub-sidewall 134 are arranged opposite to each other. Electrical components are disposed on the first sub-sidewall 131, and the first fan 4 is disposed on the third sub-sidewall 133. The second sub-sidewall 132, the third sub-sidewall 133, and the fourth sub-sidewall 134 each include an inner wall 1301 and an outer wall 1302, and the inner wall 1301 of the second sub-sidewall 132 and the fourth sub-sidewall 134 is provided with an air inlet 1303, and the inner wall 1301 of the third sub-sidewall 133 is provided with an air outlet 1304.

[0101] Thus, as Figure 9 and Figure 10 As shown, forced convection heat transfer occurs in the air ducts 13 of the second sub-sidewall 132, the third sub-sidewall 133, and the fourth sub-sidewall 134, increasing the area of ​​forced convection heat transfer. This further improves the heat dissipation efficiency of the electrical compartment 101.

[0102] In some examples, such as Figure 10 As shown, the inner wall 1301 of the third sub-side wall 133 includes two air outlets 1304, which are spaced apart along the height direction. The inner walls 1301 of the second sub-side wall 132 and the fourth sub-side wall 134 each include two air inlets 1303, with the upper air inlet 1303 positioned higher than all the air outlets 1304, and the lower air inlet 1303 positioned lower than all the air outlets 1304.

[0103] In some examples, the second sub-sidewall 132 or the fourth sub-sidewall 134 may be provided with a screen assembly 5, an auxiliary power module 6, or a plug-in structure 9. This allows the screen assembly 5, the auxiliary power module 6, or the plug-in structure 9 to be separated from the switch circuit 2 and the first fan 4, which is beneficial for the layout of the internal components of the electrical compartment 101.

[0104] In some examples, such as Figure 11 and Figure 12 As shown, the sidewall of the electrical compartment 101 includes a first sub-sidewall 131 and a second sub-sidewall 132 arranged adjacent to each other. Electrical components are disposed on the first sub-sidewall 131. A first fan 4 is disposed on the second sub-sidewall 132. The second sub-sidewall 132 includes an inner wall 1301 and an outer wall 1302. The inner wall 1301 of the second sub-sidewall 132 is provided with an air inlet 1303 and an air outlet 1304. For example, such as... Figure 11 As shown, the first fan 4 is inclined relative to the second sub-side wall 132 to facilitate blowing air toward the electrical components.

[0105] In some examples, such as Figure 12 As shown, the inner wall 1301 of the second sub-side wall 132 includes two air inlets 1303 and two air outlets 1304, with the two air outlets 1304 located between the two air inlets 1303 along the height direction. For example, the air inlets 1303 are located directly above or directly below the air outlets 1304.

[0106] In some examples, such as Figures 11-14 As shown, the sidewalls of the electrical compartment 101 also include a third sub-sidewall 133 and a fourth sub-sidewall 134. The third sub-sidewall 133 is disposed opposite to the first sub-sidewall 131, and the fourth sub-sidewall 134 is disposed opposite to the second sub-sidewall 132. The charging pile 200 also includes a screen assembly 5, which is disposed on the third sub-sidewall 133 or the fourth sub-sidewall 134. In this way, the screen assembly 5, the switch circuit 2, and the first fan 4 are separated (i.e., disposed on different sidewalls), which is beneficial for the layout of the internal components of the electrical compartment 101.

[0107] In some examples, such as Figure 12 As shown, the charging pile 200 also includes an auxiliary power module 6, which is located on the third sub-side wall 133 or the fourth sub-side wall 134. The auxiliary power module 6 and the screen assembly 5 can be located on the same side wall or on different side walls.

[0108] In some examples, such as Figure 12 As shown, the charging pile 200 also includes a plug-in structure 9. The plug-in structure 9 is located on the third sub-side wall 133 or the fourth sub-side wall 134.

[0109] In some examples, such as Figures 11-14 As shown, the charging pile 200 also includes a resetter 10, which is disposed on the fourth sub-side wall 134. In related technologies, the resetter 10 and the first fan 4 are disposed on the same side wall. However, in this embodiment, by disposing of the resetter 10 and the first fan 4 on different side walls, it is beneficial to install the resetter 10 and to configure the second sub-side wall 132 as a side wall including an inner wall 1301 and an outer wall 1302.

[0110] In some examples, the side wall where the first fan 4 is located is designated as a door. That is, the side wall including the inner wall 1301 and the outer wall 1302 is the door. Since the door is a relatively independent component within the housing 1, including both the inner wall 1301 and the outer wall 1302 makes it easier to manufacture. Furthermore, the number of electrical components mounted on the door is generally small, so including both the inner wall 1301 and the outer wall 1302 reduces the impact on the electrical components.

[0111] In some examples, such as Figure 13 As shown, the second sub-side wall 132 is the warehouse door.

[0112] This application does not limit the type of air duct 13 in its embodiments. In some examples, air duct 13 is a smooth air duct. In other examples, such as... Figure 14 As shown, a heat exchange fin 130 is installed inside the air duct 13, and the heat exchange fin 130 is located in the air duct 13 and connected to the outer wall 1302. This increases the heat exchange area and heat exchange efficiency between the hot air in the air duct 13 and the outer wall 1302.

[0113] In some examples, the heat exchange fins 130 extend along the height of the charging pile to reduce the obstruction of the heat exchange fins 130 to the air and improve the smoothness of airflow.

[0114] This application does not limit the heat dissipation method of the charging pile 200 described above. In some examples, such as Figures 6-14 As shown, the charging cable 3 of the charging pile 200 uses air cooling, so the housing 1 only includes the electrical compartment 101. In other examples, such as Figure 15 As shown, the charging cable 3 of the charging pile 200 uses liquid cooling for heat dissipation. Therefore, the housing 1 also includes a heat exchange chamber 102, which, along with the electrical component compartment 101, is arranged along the height of the charging pile 200. For example, the heat exchange chamber 102 is located below the electrical component compartment 101. The electrical component compartment 101 and the heat exchange chamber 102 are separated by a partition 14. A heat dissipation device 7 is provided in the heat exchange chamber 102, which is used to cool the electrical components in the electrical component compartment 101. For example, the heat dissipation device 7 is used to cool the coolant flowing from the charging cable 3, or to cool the power module 1000 in the electrical component compartment 101.

[0115] In some examples, such as Figure 15 As shown, the heat exchange chamber 102 has two vents 1305 arranged opposite each other. The radiator 72 of the heat dissipation device 7 is arranged between the two vents 1305. A second fan 8 is provided in the heat exchange chamber 102, which is used to blow air onto the radiator 72.

[0116] In some examples, such as Figure 15As shown, for the charging pile 200 with liquid cooling for the charging cable 3, the outer wall 1302 has a larger dimension in the height direction than the inner wall 1301. A portion of the outer wall 1302 is used to surround the electrical compartment 101, and another portion is used to surround the heat exchange compartment 102, while the inner wall 1301 is only used to surround the electrical compartment 101.

[0117] In cases where the side walls containing the inner wall 1301 and the outer wall 1302 are used as doors, in some examples, the door includes an outer door panel (equivalent to the outer wall 1302) and an inner door panel (equivalent to the inner wall 1301). The outer door panel is larger in the height direction than the inner door panel, and part of the outer door panel is used to enclose the electrical compartment 101, while another part is used to enclose the heat exchange compartment 102. The inner door panel is only used to enclose the electrical compartment 101. This arrangement makes the exposed door a single, continuous outer door panel, which is more aesthetically pleasing and has higher reliability.

[0118] Of course, in other examples, the inner door panel can be set to be larger in height than the outer door panel, and a portion of the inner door panel is used to enclose the electrical compartment 101 and another portion is used to enclose the heat exchange compartment 102, while the outer door panel is only used to enclose the electrical compartment 101 (or is set opposite to the electrical compartment 101).

[0119] This application also provides another type of charging pile 200, such as... Figure 16 As shown, the charging pile 200 includes an electrical compartment 101 for housing electrical components (such as a switching circuit 2) and a heat exchange compartment 102 for housing a heat dissipation device 7. The heat dissipation device 7 is used to cool the electrical components. The heat exchange compartment 102 and the electrical compartment 101 are arranged along the height direction of the charging pile 200. The side wall of the electrical compartment 101 includes an inner wall 1301 and an outer wall 1302, and an air duct 13 is provided between the inner wall 1301 and the outer wall 1302. The air inlet 1303 of the air duct 13 connects to the outside of the charging pile 200, and the air duct 13 (such as an air outlet 1304) connects to the heat exchange compartment 102. The side wall of the heat exchange compartment 102 is provided with a ventilation opening 1305 connecting to the outside.

[0120] For example, such as Figure 16 As shown, the distance d between the inner wall 1301 and the outer wall 1302 is greater than 10mm and less than 40mm. The height can be the same as the height of the electrical compartment 101 to make the best use of the heat dissipation area of ​​the side wall of the electrical compartment 101.

[0121] The technical solutions provided in the embodiments of this application, such as Figure 16As indicated by the arrows, external cold air enters the air duct 13 through the air inlet 1303, then flows into the heat exchange chamber 102 through the air outlet 1304, and then flows out through the ventilation opening 1305 of the heat exchange chamber 102. During the flow of external cold air in the air duct 13, forced convection heat exchange occurs between the cold air and the inner wall 1301. Thus, the cold air in the air duct 13 efficiently cools the inner wall 1301, and the inner wall 1301 in turn cools the hot air in the electrical compartment 101, thereby improving the heat dissipation efficiency of the electrical compartment 101 and the charging pile 200.

[0122] Furthermore, by configuring both the air inlet 1303 and the air outlet 1304 of the air duct 13 to connect to the outside of the electrical compartment 101, the electrical compartment 101 is not connected to the outside, thus ensuring good sealing performance. For example, an IP55 protection rating can be achieved.

[0123] In some examples, such as Figure 16 As shown, a second fan 8 is also provided in the heat exchange chamber 102, which is used to blow air towards the heat dissipation device 7. The second fan 8 is used to drive the cold air to flow along the air duct 13 to achieve forced convection heat exchange between the cold air in the air duct 13 and the inner wall 1301.

[0124] In some examples, such as Figure 16 As shown, the heat dissipation device 7 includes a liquid cooling box 71 and a radiator 72. The liquid cooling box 71 is connected to two liquid cooling pipes 32 of the charging cable 3. One of the two liquid cooling pipes 32 is an inlet pipe, and the other is an outlet pipe. The radiator 72 is used to cool the coolant inside the liquid cooling box 71. The second fan 8 is used to blow air towards the radiator 72. Driven by the second fan 8, cold air from outside the housing 1 flows into the air duct 13 from the air inlet 1303, and then flows into the heat exchange chamber 102 through the air outlet 1304 and blows towards the radiator 72. The hot air heated by the radiator 72 is blown out from the vent 1305.

[0125] In some examples, such as Figure 16 As shown, the heat exchange chamber 102 is located below the electrical compartment 101.

[0126] The technical solution provided in this application embodiment, since the heat exchange chamber 102 is located below the electrical compartment 101, and the side wall of the electrical compartment 101 includes an air inlet 1303 for air intake, and the side wall of the heat exchange chamber 102 includes a ventilation opening 1305 for air exhaust, the position of the air inlet 1303 is higher than that of the ventilation opening 1305. Thus, as... Figure 17 As shown, for two charging piles 200 arranged side by side, the hot air flowing out of the vent 1305 of the first charging pile 200 is unlikely to enter the interior of the heat exchange chamber 102 through the air inlet 1303 of the second charging pile 200, thus preventing the phenomenon of thermal cascading.

[0127] In some examples, such as Figure 16 As shown, a first fan 4 is installed inside the electrical compartment 101, with the air supply side of the first fan 4 facing the electrical components. The air inlet 1303 is positioned higher than the first fan 4. This higher position of the air inlet 1303 results in a higher air duct 13, which increases the area for convection heat transfer and improves the heat exchange efficiency inside the electrical compartment 101.

[0128] In some examples, such as Figure 16 As shown, two first fans 4 are installed inside the electrical compartment 101, and the air inlet 1303 is positioned higher than the two first fans 4.

[0129] In some examples, such as Figure 18 As shown, the sidewalls of the housing 1 include a first sub-sidewall 131, a second sub-sidewall 132, a third sub-sidewall 133, and a fourth sub-sidewall 134 connected in sequence. The first sub-sidewall 131, the second sub-sidewall 132, the third sub-sidewall 133, and the fourth sub-sidewall 134 form an electrical compartment 101 and a heat exchange compartment 102. The first sub-sidewall 131 and the third sub-sidewall 133 are arranged opposite each other, and the second sub-sidewall 132 and the fourth sub-sidewall 134 are arranged opposite each other.

[0130] In some examples, such as Figure 17 and Figure 18 As shown, the sidewall containing the vent 1305 is positioned opposite to the sidewall including the inner wall 1301 and the outer wall 1302. For example, one of the second sub-sidewall 132 and the fourth sub-sidewall 134 has the vent 1305, while the other includes the inner wall 1301 and the outer wall 1302. Specifically, the second sub-sidewall 132 includes the inner wall 1301 and the outer wall 1302, and the fourth sub-sidewall 134 includes the vent 1305. The suction side of the second fan 8 faces the second sub-sidewall 132, and the air supply side faces the fourth sub-sidewall 134, thereby facilitating the second fan 8 to drive air to flow out from the air outlet 1304 of the air duct 13 and blow it toward the heat dissipation device 7.

[0131] In some examples, such as Figure 17 and Figure 18 As shown, the sidewall where the electrical components are located is arranged opposite to or adjacent to the sidewalls including the inner wall 1301 and the outer wall 1302. This facilitates the installation of electrical components (such as the switch circuit 2).

[0132] In some examples, such as Figure 18 As shown, the charging pile 200 also includes a screen assembly 5, and the side wall where the screen assembly 5 is located is adjacent to the inner wall 1301 and the outer wall 1302. For example, as Figure 18 As shown, the screen assembly 5 is disposed on the third sub-side wall 133, and the second sub-side wall 132 includes an inner wall 1301 and an outer wall 1302.

[0133] The technical solutions provided in the embodiments of this application, such as Figure 18 As shown, since the user needs to operate the screen component 5, they need to stand in front of the third sub-side wall 133. Therefore, it is not convenient to set up a vent 1305 on the third sub-side wall 133, otherwise hot air will blow towards the user. At the same time, since the third sub-side wall 133 needs to fix the screen component 5, it is also not convenient to set up an inner wall 1301 and an outer wall 1302 on the third sub-side wall 133. Therefore, in this embodiment, one of the second sub-side wall 132 and the fourth sub-side wall 134 is provided with a vent 1305, and the other includes an inner wall 1301 and an outer wall 1302, which is beneficial for fixing the screen component 5 and can improve the user experience.

[0134] In some examples, such as Figure 18 As shown, the third sub-sidewall 133 is provided with a gun insertion structure 9. In some examples, the third sub-sidewall 133 is provided with an auxiliary source module 6. In some examples, such as Figure 18 As shown, the resetter 10 is located on the fourth sub-sidewall 134. In some examples, such as... Figure 18 As shown, the electrical component (switching circuit 2) is disposed on the first sub-side wall 131.

[0135] In some examples, the sidewalls with inner wall 1301 and outer wall 1302 are used as storage doors. Since the storage door is a relatively independent component within the housing 1, including both inner wall 1301 and outer wall 1302 in the storage door makes it easier to manufacture. Furthermore, the storage door typically has fewer components, which also facilitates including both inner wall 1301 and outer wall 1302 in the storage door design.

[0136] In some examples, the second sub-side wall 132 is a storage door, and it is provided with an inner wall 1301 and an outer wall 1302. For example, the first fan 4 is disposed on the second sub-side wall 132. It should be noted that the inner wall 1301 and outer wall 1302 can also be disposed on other storage doors besides the second sub-side wall 132; this application embodiment does not specifically limit this.

[0137] This application does not limit the type of air duct 13 in its embodiments. In some examples, air duct 13 is a smooth air duct. In other examples, such as... Figure 19 As shown, a heat exchange fin 130 is installed inside the air duct 13, and the heat exchange fin 130 is connected to the inner wall 1301, thereby increasing the heat exchange area and heat exchange efficiency between the cold air inside the air duct 13 and the inner wall 1301. In some examples, the heat exchange fin 130 extends along the height direction of the charging pile 200 to reduce the obstruction of the heat exchange fin 130 to the air and improve the smoothness of airflow.

[0138] In some examples, such as Figures 16-18As shown, along the arrangement direction of the electrical compartment 101 and the heat exchange compartment 102, the length of the outer wall 1302 is greater than the length of the inner wall 1301. A portion of the outer wall 1302 is used to enclose the heat exchange compartment 102, and another portion of the outer wall 1302, together with the inner wall 1301, is used to enclose the air duct 13. In this way, the cold air in the air duct 13 directly enters the heat exchange compartment 102 along one end of the air duct 13, making the flow of cold air smoother.

[0139] In some examples, such as Figures 16-18 As shown, the bottom end of the outer wall 1302 is connected to the bottom wall 11 of the heat exchange chamber 102, and the bottom end of the inner wall 1301 is connected to the partition 14 between the electrical compartment 101 and the heat exchange chamber 102. A downward-facing air outlet 1304 is formed between the bottom end of the inner wall 1301 and the outer wall 1302. In this way, cold air in the air duct 13 directly enters the heat exchange chamber 102 from the bottom end of the air duct 13, improving the smoothness of airflow from the air outlet 1304. Alternatively, in some other examples, the partition 14 may abut against the wall surface of the inner wall 1301, in which case the inner wall 1301 extends into the heat exchange chamber 102, and the bottom end of the inner wall 1301 forms a downward-facing air outlet 1304 between the bottom end of the inner wall 1301 and the outer wall 1302.

[0140] In other examples, such as Figure 20 As shown, the inner wall 1301 extends into the heat exchange chamber 102, and an air outlet 1304 is provided on the wall surface of the inner wall 1301. The air outlet 1304 is arranged opposite to the air intake side of the second fan 8.

[0141] This application also provides a charging system. For example... Figure 1 As shown, the charging system includes a charging host 100 and multiple charging piles 200. The charging host 100 supplies power to each charging pile 200. Each charging pile 200 is a charging terminal.

[0142] In some examples, the charging host 100 includes a power module 1000 for supplying power to each charging station 200. The power module 1000 is used to convert AC power to DC power.

[0143] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A charging pile, characterized in that, The charging pile (200) includes an electrical compartment (101) for accommodating electrical components. A first fan (4) is provided on the side wall of the electrical compartment (101), and the air supply side of the first fan (4) is arranged facing the electrical components. The side wall on which the first fan (4) is provided includes an inner wall (1301) and an outer wall (1302). The first fan (4) is provided on the inner wall (1301). An air duct (13) is provided between the inner wall (1301) and the outer wall (1302). The air inlet (1303) and the air outlet (1304) of the air duct (13) are both connected to the electrical compartment (101), and the air outlet (1304) is provided opposite to the suction side of the first fan (4).

2. The charging pile according to claim 1, characterized in that, The side wall where the first fan (4) is located serves as a door.

3. The charging pile according to claim 1 or 2, characterized in that, The electrical components include a switching circuit (2), one end of which is used to connect to a power module (1000), and the other end of which is used to connect to a charging cable (3), the charging cable (3) including a charging gun (30).

4. The charging pile according to claim 3, characterized in that, The switching circuit (2) includes a switch and a connecting copper busbar (20). One end of the switch is connected to the power module (1000), and the other end of the switch is connected to the charging cable (3) through the connecting copper busbar (20). The air duct (13) includes two air outlets (1304) and two sets of air inlets (1303). The two air outlets (1304) are spaced apart along the height direction of the charging pile. One set of air inlets (1303) is positioned higher than the upper air outlet (1304), and the other set of air inlets (1303) is positioned lower than the lower air outlet (1304). Each set of air inlets (1303) includes at least one air inlet (1303). There are two first fans (4), with the suction side of the two first fans (4) facing the two air outlets (1304) respectively, and the air delivery side of the two first fans (4) facing the switch, the connection point of the connecting copper busbar (20) and the charging cable (3) respectively.

5. The charging pile according to any one of claims 1-4, characterized in that, The sidewall of the electrical compartment (101) includes a first sub-sidewall (131) and a second sub-sidewall (132) arranged adjacent to each other; The electrical components are disposed on the first sub-sidewall (131), and the first fan (4) is disposed on the second sub-sidewall (132); The second sub-sidewall (132) includes the inner wall (1301) and the outer wall (1302), and the inner wall (1301) of the second sub-sidewall (132) is provided with the air inlet (1303) and the air outlet (1304).

6. The charging pile according to claim 5, characterized in that, The sidewall of the electrical compartment (101) further includes a third sub-sidewall (133) and a fourth sub-sidewall (134), wherein the third sub-sidewall (133) is disposed opposite to the first sub-sidewall (131), and the fourth sub-sidewall (134) is disposed opposite to the second sub-sidewall (132); The charging pile also includes a screen assembly (5) and a charging gun structure (9). The screen assembly (5) and the charging gun structure (9) are respectively disposed on the third sub-side wall (133) and the fourth sub-side wall (134), or the screen assembly (5) and the charging gun structure (9) are both disposed on one of the side walls of the third sub-side wall (133) and the fourth sub-side wall (134).

7. The charging pile according to any one of claims 1-4, characterized in that, The sidewalls of the electrical compartment (101) include a first sub-sidewall (131) and a third sub-sidewall (133) disposed opposite to each other; The electrical components are disposed on the first sub-sidewall (131), and the first fan (4) is disposed on the third sub-sidewall (133); The third sub-sidewall (133) includes the inner wall (1301) and the outer wall (1302), and the inner wall (1301) of the third sub-sidewall (133) is provided with the air inlet (1303) and the air outlet (1304).

8. The charging pile according to any one of claims 1-4, characterized in that, The sidewall of the electrical compartment (101) includes a first sub-sidewall (131), a second sub-sidewall (132), a third sub-sidewall (133), and a fourth sub-sidewall (134). The first sub-sidewall (131) is disposed opposite to the third sub-sidewall (133), and the second sub-sidewall (132) is disposed opposite to the fourth sub-sidewall (134). The electrical components are disposed on the first sub-sidewall (131), and the first fan (4) is disposed on the third sub-sidewall (133); The second sub-sidewall (132), the third sub-sidewall (133), and the fourth sub-sidewall (134) each include an inner wall (1301) and an outer wall (1302). The inner wall (1301) of the second sub-sidewall (132) and the fourth sub-sidewall (134) is provided with the air inlet (1303), and the inner wall (1301) of the third sub-sidewall (133) is provided with the air outlet (1304).

9. The charging pile according to any one of claims 1-8, characterized in that, The charging pile (200) also includes a heat exchange chamber (102) for accommodating a heat dissipation device (7) for cooling the electrical components. The heat exchange chamber (102) and the electrical component chamber (101) are arranged along the height direction of the charging pile (200).

10. The charging pile according to any one of claims 1-9, characterized in that, The air duct (13) is provided with heat exchange plates (130) inside. The heat exchange plates (130) are connected to the outer wall (1302) and extend along the height direction of the charging pile (200).

11. A charging pile, characterized in that, The charging pile (200) includes an electrical compartment (101) for accommodating electrical components and a heat exchange compartment (102) for accommodating a heat dissipation device (7) for cooling the electrical components. The heat exchange compartment (102) and the electrical compartment (101) are arranged along the height direction of the charging pile (200). The side wall of the electrical compartment (101) includes an inner wall (1301) and an outer wall (1302). An air duct (13) is provided between the inner wall (1301) and the outer wall (1302). The air inlet (1303) of the air duct (13) is connected to the outside of the charging pile (200). The air duct (13) is connected to the heat exchange compartment (102). The side wall of the heat exchange compartment (102) is provided with a ventilation opening (1305).

12. The charging pile according to claim 11, characterized in that, The heat exchange chamber (102) is also equipped with a second fan (8), which is used to blow air toward the heat dissipation device (7).

13. The charging pile according to claim 11 or 12, characterized in that, Along the arrangement direction of the electrical compartment (101) and the heat exchange compartment (102), the length of the outer wall (1302) is greater than the length of the inner wall (1301). A portion of the outer wall (1302) is used to enclose the heat exchange compartment (102), and another portion of the outer wall (1302) is used together with the inner wall (1301) to enclose the air duct (13).

14. The charging pile according to claim 12 or 13, characterized in that, The heat exchange chamber (102) is located below the electrical compartment (101). A first fan (4) is installed inside the electrical compartment (101). The air supply side of the first fan (4) is directed toward the electrical components. The air inlet (1303) is located higher than the position of the first fan (4).

15. The charging pile according to any one of claims 11-14, characterized in that, The sidewall containing the electrical component is disposed opposite to or adjacent to the sidewall including the inner wall (1301) and the outer wall (1302).

16. The charging pile according to any one of claims 11-15, characterized in that, The side wall where the vent (1305) is located is disposed opposite to the side wall including the inner wall (1301) and the outer wall (1302).

17. The charging pile according to any one of claims 11-16, characterized in that, The charging pile (200) also includes a screen assembly (5), and the side wall where the screen assembly (5) is located is disposed adjacent to the side wall including the inner wall (1301) and the outer wall (1302).

18. The charging pile according to any one of claims 11-17, characterized in that, The side wall, which is provided with the inner wall (1301) and the outer wall (1302), is a storage door.

19. The charging pile according to any one of claims 11-18, characterized in that, The air duct (13) is provided with heat exchange plates (130) inside. The heat exchange plates (130) are connected to the inner wall (1301) and extend along the height direction of the charging pile (200).

20. A charging system, characterized in that, The charging system includes a charging host (100) and a plurality of charging piles (200) as described in any one of claims 1-19, wherein the charging host (100) is used to supply power to each of the charging piles (200).

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