Ground terminal charging device, charging pile system and charging system

Abstract

The application relates to the technical field of automobile charging, in particular to a ground end charging device, a charging pile system and a charging system. The ground end charging device can move to the bottom of a vehicle on a target surface, the ground end charging device comprises a shell, an electrical assembly and a first water immersion sensor, the electrical assembly is installed in the shell, along the height direction of the shell, the side surface of the electrical assembly towards the target surface is a first side, and the first water immersion sensor is installed on the first side. The charging pile system comprises a pile body, a charging gun and the ground end charging device, the charging gun and the ground end charging device are electrically connected with the pile body. The charging system comprises a vehicle end charging device and the ground end charging device, the vehicle end charging device and the ground end charging device can be connected for charging. The application can effectively improve the safety performance of the ground end charging device in use.

Description

Technical Field

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

[0002] In recent years, automatic charging technology has been continuously developing, and the automotive industry has been constantly exploring various automatic charging solutions for different methods and applications. Currently, conductive contact charging is gradually becoming the preferred charging solution for electric vehicles due to its lack of special requirements on the vehicle chassis and its small space requirements.

[0003] However, since conductive contact charging devices move to the bottom of the car to charge it, there may be puddles under the vehicle or along the path of the conductive contact charging device after the car is parked. This poses a risk of the charging device wading through water while it is automatically moving to the bottom of the car. If it continues to charge after wading through water, there is a high safety hazard. Utility Model Content

[0004] Therefore, it is necessary to provide a ground-mounted charging device, a charging pile system, and a charging system to solve the problem of charging safety after the charging device is submerged in water.

[0005] The first aspect of this application provides the following technical solution:

[0006] A ground-mounted charging device is capable of moving to the bottom of a vehicle on a target surface. The ground-mounted charging device includes a housing, electrical components, and a first immersion sensor. The electrical components are installed inside the housing. Along the height direction of the housing, the side surface of the electrical components facing the target surface is a first side surface, and the first immersion sensor is installed on the first side surface.

[0007] In one embodiment, the housing is open on one side facing the target surface.

[0008] In one embodiment, the ground charging device further includes a second immersion sensor, and the electrical component has a second side facing away from the first side, the second immersion sensor being mounted on the second side.

[0009] In one embodiment, the electrical components include a splitter module, a control module, an input cable, and a connecting harness. The splitter module and the control module are spaced apart within the housing. The input cable passes through the side wall of the housing and is connected to the splitter module. The splitter module and the control module are electrically connected through the connecting harness.

[0010] The dividing module is configured as a third side surface facing the target surface, and the third side surface is located above the first side surface along the height direction of the housing.

[0011] In one embodiment, the control module includes a control housing, a control cover, and a control device. The control housing has an electrical cavity and an electrical cavity opening. The control device is installed inside the electrical cavity. The control cover is placed over the electrical cavity opening and is sealed to the control housing.

[0012] In one embodiment, the control cover is detachably connected to the control housing.

[0013] In one embodiment, the control housing has a wiring harness inlet, and the control module further includes a first waterproof connector. The first waterproof connector is located at the wiring harness inlet and is sealed to the control housing. The connecting wires pass through the first waterproof connector and are sealed to the first waterproof connector.

[0014] In one embodiment, the splitter module includes a splitter housing and a second waterproof connector. The splitter housing has a cable inlet, and the second waterproof connector is located at the cable inlet and is sealed to the splitter housing. The input cable passes through the second waterproof connector and is sealed to the second waterproof connector. Alternatively, the splitter housing has a wire harness outlet, and the splitter module includes a third waterproof connector. The third waterproof connector is located at the wire harness outlet and is sealed to the splitter housing. The connecting wire harness passes through the third waterproof connector and is sealed to the third waterproof connector.

[0015] The second aspect of this application provides the following technical solution:

[0016] A charging pile system includes a pile body, a charging gun, and a ground-end charging device in any of the above embodiments, wherein the charging gun and the ground-end charging device are both electrically connected to the pile body.

[0017] The third aspect of this application provides the following technical solution:

[0018] A charging system includes a vehicle-side charging device and a ground-side charging device as described in any of the above embodiments, wherein the vehicle-side charging device and the ground-side charging device are capable of docking for charging.

[0019] Compared with existing technologies, the ground-mounted charging device, charging pile system, and charging system provided in this application, by setting a first immersion sensor on the first side of the electrical component, with the first side facing the target surface (i.e., the first side being the bottom surface of the electrical component), allows the ground-mounted charging device to promptly detect whether the electrical component is submerged in water after it has been moved into position. If it is submerged, the first immersion sensor generates a signal to control the ground-mounted charging device to stop operating in a timely manner, avoiding problems such as short circuits and electric shocks, thereby achieving the goal of safe use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A three-dimensional structural schematic diagram of the ground-end charging device provided in this application;

[0022] Figure 2 A partial structural schematic diagram of the ground-end charging device provided in this application;

[0023] Figure 3 A cross-sectional view of the ground charging device provided in this application;

[0024] Figure 4 A schematic diagram of the structure of the ground charging device provided in this application, omitting the lifting module and docking module;

[0025] Figure 5 Another structural diagram of the ground-end charging device provided in this application, omitting the lifting module and docking module;

[0026] Figure 6 Another structural diagram of the ground-end charging device provided in this application, omitting the lifting module and docking module;

[0027] Figure 7 A perspective sectional view of the ground-end charging device provided in this application;

[0028] Figure 8 A schematic diagram of the control module provided in this application;

[0029] Figure 9 This is a schematic diagram of the structure of the branching module provided in this application;

[0030] Figure 10 A schematic diagram showing the engagement of the docking module provided in this application after it has been lifted.

[0031] Figure 11 A schematic diagram illustrating the engagement of the docking module provided in this application when it is not lifted.

[0032] Figure 12 This is a structural schematic diagram of the walking module provided in this application;

[0033] Figure 13 This is a structural schematic diagram of the charging pile system provided in this application;

[0034] Figure 14 A schematic diagram of the charging system provided in this application.

[0035] The symbols in the diagram represent the following meanings:

[0036] 10. Ground charging device; 11. Housing; 111. Charging opening; 112. Opening; 20. Docking module; 21. Ground connector; 30. Opening / closing module; 31. First cover plate; 32. Second cover plate; 40. Lifting module; 41. Protective cover; 42. Lifting linkage; 51. Electrical components; 51a. First side; 51b. Second side; 51c. Third side; 511. Splitting module; 5111. Splitting housing; 5111a. Cable inlet; 5111b. Cable harness outlet; 5112. Second waterproof connector; 5113. Third waterproof connector; 512. Control module; 5121. Control housing; 5121a. 5121b, Electrical cavity opening; 5121c, Wiring harness inlet; 5122, Control cover; 51d, Controller; 5123, Control circuit board; 5124, Control power supply; 5125, First waterproof connector; 513, Input cable; 514, Connecting wiring harness; 52, First immersion sensor; 53, Second immersion sensor; 60, Walking module; 61, Drive wheel assembly; 611, Drive wheel; 612, Rotary drive component; 62, Universal wheel; 200, Charging pile system; 210, Pile body; 220, Charging gun; 300, Charging system; 310, Vehicle-end charging device; 320, Vehicle-end connector; M, Target surface. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0042] In recent years, automatic charging technology has been continuously developing, and the automotive industry has been constantly exploring various automatic charging solutions for different methods and applications. Currently, conductive contact charging is gradually becoming the preferred charging solution for electric vehicles due to its lack of special requirements on the vehicle chassis and its small space requirements.

[0043] However, since conductive contact charging devices move to the bottom of the car to charge it, there is a risk of water damage to the bottom of the vehicle or the conductive contact charging device along its path after the car is parked. If charging continues after the vehicle has been submerged in water, there is a high safety hazard.

[0044] Please see Figure 1 , Figure 13 and Figure 14 This application provides a ground-side charging device 10, which can move on a target surface M to the bottom of a vehicle to dock with a vehicle-side charging device 310 for charging, thereby enabling vehicle charging. Here, the target surface M can be the surface of the parking space or the surface of the moving area of ​​the ground-side charging device 10.

[0045] Specifically, such as Figures 2 to 7 As shown, the ground-side charging device 10 includes a housing 11, an electrical component 51, and a first immersion sensor 52. The electrical component 51 is installed inside the housing 11. Along the height direction of the housing 11, the surface of the electrical component 51 facing the target surface M is a first side surface 51a. The first immersion sensor 52 is installed on the first side surface 51a for detecting the water level during immersion. It is understood that this application, by setting the first immersion sensor 52 on the first side surface 51a of the electrical component 51, with the first side surface 51a facing the target surface M, is essentially the bottom surface of the electrical component 51. When the ground-side charging device 10 moves or is located at the bottom of the vehicle, the first immersion sensor 52 can detect whether the electrical component 51 is in a water-immersed state, thereby achieving safety protection for the electrical component 51.

[0046] For example, when the first immersion sensor 52 detects that the electrical component 51 is submerged in water or is in a submerged state, the first immersion sensor 52 generates a immersion signal and transmits the immersion signal to the controller (not shown) in the ground charging device 10 or the vehicle controller or other control terminal. The control terminal can control the ground charging device 10 to stop working or give a warning signal based on the immersion signal to avoid short circuits, electric shocks and other problems, thereby achieving the goal of safe use.

[0047] Please continue reading. Figure 2 The housing 11 is open on the side facing the target surface M, meaning that the side of the housing 11 facing the target surface M has an opening 112. In other words, the side of the housing 11 facing the target surface M does not need to be closed, which saves on sealing materials and reduces production costs. At the same time, the inclusion of the first immersion sensor 52 also makes the overall use of the ground terminal charging device 10 safer.

[0048] In one embodiment, such as Figures 2 to 7As shown, the electrical component 51 includes a branch module 511, a control module 512, an input cable 513, and a connecting harness 514. The branch module 511 and the control module 512 are spaced apart within the housing 11. The control module 512 has the aforementioned first side 51a, i.e., the first immersion sensor 52 is mounted on the control module 512. The input cable 513 passes through the side wall of the housing 11 and connects to the branch module 511. The branch module 511 and the control module 512 are electrically connected via the connecting harness 514. Along the height direction Z of the housing 11, the side surface of the branch module 511 facing the target surface M is configured as a third side 51c. Along the height direction Z of the housing 11, the third side 51c is positioned above the first side 51a. Here, the branch module 511 is used for branching, dividing a single cable into multiple harnesses to facilitate connection with multiple electrical components within the housing 11. The control module 512 is the core control structure of the ground charging device 10. It contains multiple electrical components. By installing the first immersion sensor 52 on the control module 512, the water immersion detection of the entire electrical component 51 can be realized. At the same time, the third side 51c is located above the first side 51a, that is, in the height direction Z of the housing 11. The position of the branch module 511 is relatively higher than the control module 512, which can effectively improve the safety of the branch module 511, thereby making the use of the entire electrical component 51 safer.

[0049] Specifically, see Figure 3 , Figure 7 and Figure 8 The control module 512 includes a control housing 5121, a control cover 5122, and a control device 51d. The control housing 5121 has an electrical cavity 5121a and an electrical cavity opening 5121b. The control device 51d is installed inside the electrical cavity 5121a. The control cover 5122 is located at the electrical cavity opening 5121b and is sealed to the control housing 5121. This ensures the airtightness of the electrical cavity 5121a, thereby improving the safety of the internally installed components such as the control device 51d. Here, the control device 51d includes electrical components such as a control circuit board 5123, a control power supply 5124, and relays.

[0050] Furthermore, to achieve a sealed connection between the control cover 5122 and the control housing 5121, sealant can be filled between the control cover 5122 and the control housing 5121, or a separate sealing ring can be provided.

[0051] In one embodiment, the control cover 5122 and the control housing 5121 are detachably connected, which facilitates maintenance of the control devices 51d and the like within the electrical cavity 5121a. Here, the detachable connection between the control cover 5122 and the control housing 5121 can be achieved through threaded parts, snap-fit ​​parts, or the like.

[0052] For example, the control cover 5122 and the control housing 5121 are connected by bolts or screws.

[0053] Please see Figure 8 The control housing 5121 has a wiring harness inlet 5121c. The control module 512 also includes a first waterproof connector 5125, which is located at the wiring harness inlet 5121c and is sealed to the control housing 5121. The connecting wiring harness 514 passes through the first waterproof connector 5125 and is sealed to it. This ensures the sealing performance of the control housing 5121 at the location where the connecting wiring harness 514 passes through, preventing moisture from seeping into the electrical cavity 5121a. The first waterproof connector 5125 can be sealed to the control housing 5121 by adhesive bonding or a sealing gasket. Furthermore, the sealing effect with the connecting wiring harness 514 can be improved by adhesive bonding or the installation of a sealing ring within the first waterproof connector 5125.

[0054] In one embodiment, such as Figure 9 As shown, the splitter module 511 includes a splitter housing 5111 and a second waterproof connector 5112. The splitter housing 5111 has a cable inlet 5111a. The second waterproof connector 5112 is located at the cable inlet 5111a and is sealed to the splitter housing 5111. The input cable 513 passes through the second waterproof connector 5112 and is sealed to it. This ensures the sealing performance of the splitter housing 5111 at the point where the input cable 513 passes through, preventing moisture and other contaminants from seeping into the splitter housing 5111. The second waterproof connector 5112 can be sealed to the splitter housing 5111 by adhesive bonding or a sealing gasket. Furthermore, the sealing effect with the input cable 513 can be improved by adhesive bonding or the installation of a sealing ring within the second waterproof connector 5112.

[0055] Furthermore, the splitter housing 5111 has a wire harness outlet 5111b. The splitter module 511 includes a third waterproof connector 5113, which is located at the wire harness outlet 5111b and is sealed to the splitter housing 5111. The connecting wire harness 514 passes through the third waterproof connector 5113 and is sealed to it. This ensures the sealing performance of the splitter housing 5111 at the point where the connecting wire harness 514 passes through, preventing moisture and other substances from seeping into the splitter housing 5111. The third waterproof connector 5113 can be sealed to the splitter housing 5111 by adhesive bonding or a sealing gasket. Additionally, the sealing effect with the connecting wire harness 514 can be improved by adhesive bonding or the installation of a sealing ring within the third waterproof connector 5113.

[0056] Please see Figure 3 , Figure 7 and Figure 8In one embodiment, the ground-side charging device 10 further includes a second immersion sensor 53. The electrical component 51 has a second side 51b facing away from the first side 51a, and the second immersion sensor 53 is mounted on the second side 51b. This configuration allows the second immersion sensor 53 to detect whether there is water accumulation on the second side 51b, further improving the safety performance of the electrical component 51. Simultaneously, the combination of the second immersion sensor 53 and the first immersion sensor 52 creates dual-sided water accumulation detection points on both sides of the electrical component 51. This not only eliminates the blind spot in water accumulation detection caused by water seepage from one side of the housing 11, avoiding missed water ingress detection, but also forms a redundant structure with dual immersion sensors, maintaining immersion monitoring even when a single immersion sensor fails. Furthermore, since the second immersion sensor 53 and the first immersion sensor 52 are distributed along the height Z direction of the housing 11, the signal combination of the second immersion sensor 53 and the first immersion sensor 52 can determine the location and degree of water ingress, implement graded power-off protection, avoid the risk of high-voltage water immersion short circuits, and further improve waterproof safety performance.

[0057] Please see Figure 1 , Figure 3 , Figure 5 and Figure 7 The ground-side charging device 10 also includes a docking module 20, a lifting module 40, and an opening / closing module 30. The housing 11 has an opening configured as a charging opening 111. The opening / closing module 30 is used to open and close the charging opening 111 of the housing 11. The lifting module 40 is mounted on the housing 11 and can move up and down in the height direction of the housing 11. The docking module 20 is mounted on the lifting module 40 and can move up and down with the lifting module 40, for docking and charging with the vehicle-side connector 320 on the vehicle-side charging device 310.

[0058] Specifically, the docking module 20 is provided with a ground connector 21, which is used to dock with the vehicle connector 320 on the vehicle charging device 310, thereby realizing the charging cooperation between the two.

[0059] Please see Figure 1 and Figure 10 The lifting module 40 includes a lifting link 42 and a protective cover 41. The docking module 20 is mounted on the lifting link 42. When the lifting link 42 is retracted or extended, the docking module 20 can move up and down in the height direction of the housing 11. This allows the docking module 20 to be lifted, enabling the ground charging device 10 to adapt to vehicles with different chassis heights and complete docking. The protective cover 41 covers the outer periphery of the lifting link 42 and is connected to both the docking module 20 and the housing 11. It protects the lifting link 42 and can be extended or folded accordingly as the lifting link 42 is raised or lowered.

[0060] Here, the lifting linkage 42 can be configured as a four-link or five-link structure, and the number of lifting linkages 42 can be set according to actual needs, such as two or three sets. The protective cover 41 can be a bellows cover or a rubber / silicone corrugated tube, etc., which will not be described in detail here.

[0061] Please see Figure 1 , Figures 4 to 6 The opening and closing module 30 includes a first cover plate 31 and a second cover plate 32. The first cover plate 31 and the second cover plate 32 are movably disposed at the charging opening 111. When the ground charging device 10 is not working, the docking module 20 and the lifting module 40 are housed in the housing 11. At this time, the first cover plate 31 and the second cover plate 32 cover the charging opening 111, thereby protecting the components inside the housing 11. When the ground charging device 10 is ready to charge the vehicle, the opening and closing module 30 drives the first cover plate 31 and the second cover plate 32 to move away from each other, thereby opening the charging opening 111 so that the lifting module 40 can drive the docking module 20 to lift and complete the docking and charging work of the vehicle charging device 310.

[0062] Please see Figure 5 , Figure 6 , Figure 10 , Figure 11 as well as Figure 12 The ground charging device 10 also includes a walking module 60, which is installed on the housing 11 and is used to drive the housing 11 to move. That is, the movement of the ground charging device 10 on the target surface M is achieved by the walking module 60.

[0063] Specifically, the walking module 60 includes multiple sets of drive wheel sets 61, which are disposed on two opposite sides of the housing 11, and each set of drive wheel sets 61 is independently configured. Each set of drive wheel sets 61 includes a drive wheel 611 and a rotary drive component 612. The rotary drive component 612 is connected to the drive wheel 611 and can control the drive wheel 611 to rotate at different speeds. This allows the walking module 60 to flexibly move the ground-side charging device 10 in any direction on the ground by controlling the differential speed between the drive wheel sets 61, enabling it to accurately adjust its position and move directly below the vehicle-side connector 320, thus meeting the need for automatic docking and charging when the new energy vehicle has a certain parking deviation. It should be noted that the rotary drive component 612 is a rotary motor, and the rotary motor and the drive wheel 611 are integrated into a single unit. Of course, those skilled in the art can also use a rotary cylinder, etc., which will not be elaborated here.

[0064] Here, the number of drive wheel sets 61 is set to two, with the two sets of drive wheel sets 61 located on two opposite sides of the middle of the housing 11. In addition, the walking module 60 also includes multiple omnidirectional wheels 62, which are distributed at various corners of the housing 11, so that the walking module 60 can use the two sets of drive wheel sets 61 and the multiple omnidirectional wheels 62 to jointly support the housing 11, thereby improving the load-bearing stability. Of course, it is not limited to this. For those skilled in the art, the number of drive wheel sets 61 can also be set to three, four, or even more sets, which will not be elaborated here.

[0065] like Figure 13 and Figure 14 As shown, this application also provides a charging pile system 200, which includes a pile body 210, a charging gun 220, and a ground-end charging device 10 as described in any of the above embodiments. Both the charging gun 220 and the ground-end charging device 10 are electrically connected to the pile body 210. Here, vehicle-side charging devices 310 are provided on the side and bottom of the vehicle. The charging gun 220 is adapted to the vehicle-side charging device 310 on the side of the vehicle, and the ground-end charging device 10 is adapted to the vehicle-side charging device 310 on the bottom of the vehicle.

[0066] The charging station 210 is typically installed in a fixed location, such as on a wall or the ground. The charging gun 220 is electrically connected to the charging station 210 via a cable, allowing the user to hold it and adapting to the vehicle-side charging device 310 on the side of the vehicle. The ground-side charging device 10 is also electrically connected to the charging station 210 via a cable, and the ground-side charging device 10 can move autonomously to the bottom of the vehicle.

[0067] like Figure 14 As shown, this application also provides a charging system 300, which includes a vehicle-side charging device 310 and a ground-side charging device 10 as described in any of the above embodiments. The vehicle-side charging device 310 is disposed at the bottom of the vehicle, i.e., the chassis of the vehicle, and the ground-side charging device 10 can be moved to the bottom of the vehicle to achieve docking and charging with the vehicle-side charging device 310.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A ground-mounted charging device capable of moving on a target surface (M) and to the bottom of a vehicle, characterized in that, The ground charging device includes a housing (11), an electrical component (51), and a first immersion sensor (52). The electrical component (51) is installed inside the housing (11). Along the height direction of the housing (11), the side surface of the electrical component (51) facing the target surface (M) is a first side surface (51a), and the first immersion sensor (52) is installed on the first side surface (51a).

2. The ground-end charging device according to claim 1, characterized in that, The housing (11) is open on one side facing the target surface (M).

3. The ground terminal charging device according to claim 1 or 2, characterized in that, The ground charging device further includes a second immersion sensor (53), and the electrical component (51) has a second side (51b) opposite to the first side (51a), and the second immersion sensor (53) is mounted on the second side (51b).

4. The ground terminal charging device according to claim 1, characterized in that, The electrical component (51) includes a branch module (511), a control module (512), an input cable (513), and a connecting harness (514). The branch module (511) and the control module (512) are spaced apart within the housing (11). The control module (512) has a first side surface (51a). The input cable (513) passes through the side wall of the housing (11) and is connected to the branch module (511). The branch module (511) and the control module (512) are electrically connected through the connecting harness (514). The dividing module (511) is configured as a third side surface (51c) facing the target surface (M), and the third side surface (51c) is located above the first side surface (51a) along the height direction of the housing (11).

5. The ground-end charging device according to claim 4, characterized in that, The control module (512) includes a control housing (5121), a control cover (5122), and a control device (51d). The control housing (5121) has an electrical cavity (5121a) and an electrical cavity opening (5121b). The control device (51d) is installed inside the electrical cavity (5121a). The control cover (5122) covers the electrical cavity opening (5121b) and is sealed to the control housing (5121).

6. The ground-end charging device according to claim 5, characterized in that, The control cover (5122) and the control housing (5121) are detachably connected.

7. The ground-end charging device according to claim 5, characterized in that, The control housing (5121) has a wire harness inlet (5121c), and the control module (512) further includes a first waterproof connector (5125). The first waterproof connector (5125) is located at the wire harness inlet (5121c) and is sealed to the control housing (5121). The connecting wire harness (514) passes through the first waterproof connector (5125) and is sealed to the first waterproof connector (5125).

8. The ground terminal charging device according to claim 4, characterized in that, The splitter module (511) includes a splitter housing (5111) and a second waterproof connector (5112). The splitter housing (5111) has a cable inlet (5111a). The second waterproof connector (5112) is located at the cable inlet (5111a) and is sealed to the splitter housing (5111). The input cable (513) passes through the second waterproof connector (5112) and is sealed to the second waterproof connector (5112). And / or, the splitter housing (5111) has a wire harness outlet (5111b), the splitter module (511) includes a third waterproof connector (5113), the third waterproof connector (5113) is located at the wire harness outlet (5111b) and is sealed to the splitter housing (5111), the connecting wire harness (514) passes through the third waterproof connector (5113) and is sealed to the third waterproof connector (5113).

9. A charging pile system, characterized in that, It includes a pile body (210), a charging gun (220), and a ground-end charging device (10) as described in any one of claims 1-8, wherein the charging gun (220) and the ground-end charging device (10) are both electrically connected to the pile body (210).

10. A charging system, characterized in that, It includes a vehicle-side charging device (310) and a ground-side charging device (10) as described in any one of claims 1-8, wherein the vehicle-side charging device (310) and the ground-side charging device (10) are capable of docking for charging.

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