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 comprises a shell, a cover plate, an opening and closing driving element and a transmission unit. The shell has a charging opening, and the cover plate is movably connected with the shell. The opening and closing driving element is connected with the cover plate through the transmission unit to drive the cover plate to move relative to the shell and close or open the charging opening. The cover plate extends from the top of the shell to the side of the shell, and a containing space is formed between the cover plate and the side of the shell. The opening and closing driving element and / or the transmission unit are contained in the containing space. 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 protect the internal components of the shell and avoid damage caused by long-term exposure.

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] In related technologies, conductive contact charging devices often achieve charging by connecting to the charging port on the car through a connector. The connector and other components are exposed. However, if the connector is constantly exposed to the outside world, the risk of damage to the connector will increase. 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 easy damage to the components installed in the casing of the charging device.

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

[0006] A ground-mounted charging device is movable to the bottom of a vehicle on a target surface. The ground-mounted charging device includes a housing, a cover plate, an opening / closing drive component, and a transmission unit. The housing has a charging opening, and the cover plate is movably connected to the housing and is used to close or open the charging opening. The opening / closing drive component and the transmission unit are both mounted on the housing, and the opening / closing drive component is connected to the cover plate through the transmission unit to drive the cover plate to move relative to the housing and close or open the charging opening. The cover plate extends from the top of the housing to the side of the housing, and an accommodating space is formed between the cover plate and the side of the housing. The opening / closing drive component and / or the transmission unit are accommodated in the accommodating space.

[0007] In one embodiment, the top of the housing has a first opening that forms the charging opening; as the opening and closing drive is driven, the cover can simultaneously open or close the first opening and the accommodating space.

[0008] In one embodiment, the side of the housing is provided with a mounting groove having a second opening, the mounting groove forming the accommodating space, and the opening / closing drive and / or the transmission unit is accommodated in the mounting groove; wherein, the cover plate can simultaneously open or close the first opening and the second opening.

[0009] In one embodiment, the cover plate includes a baffle and a connecting plate. The baffle is movably disposed at the charging opening, and the connecting plate is located on the side of the housing and forms the accommodating space between the side of the housing and the side of the housing, and is connected to the baffle and the transmission unit respectively.

[0010] In one embodiment, the cover plate further includes a connecting block mounted on one side of the connecting plate facing the housing side and used to connect the transmission unit.

[0011] In one embodiment, the number of cover plates is set to two, which are designated as a first cover plate and a second cover plate. The first cover plate and the second cover plate are slidably disposed at the charging opening and are both connected to the transmission unit. The opening and closing drive member drives the first cover plate and the second cover plate to move closer or further away from each other through the transmission unit to close or open the charging opening.

[0012] In one embodiment, the transmission unit includes: a transmission wheel having a first transmission wheel and a second transmission wheel, both of which are rotatably connected to the housing; a transmission member wound around the first transmission wheel and the second transmission wheel and being pulsatorically connected to the first transmission wheel and the second transmission wheel; a first cover plate and a second cover plate both connected to the transmission member; and an opening / closing drive member connected to the transmission member.

[0013] In one embodiment, the portion of the transmission member located on one side of the line connecting the centers of the first transmission wheel and the second transmission wheel is defined as the first transmission part, and the portion of the transmission member located on the other side of the line connecting the centers of the first transmission wheel and the second transmission wheel is defined as the second transmission part; the first cover plate is connected to the first transmission part, and the second cover plate is connected to the second transmission part.

[0014] In one embodiment, both the first transmission wheel and the second transmission wheel have transmission grooves on their outer peripheries, and a portion of the transmission component is installed in the transmission groove.

[0015] In one embodiment, the ground charging device further includes a guiding unit disposed between the housing and the cover plate to guide the opening or closing movement of the cover plate relative to the housing.

[0016] In one embodiment, the guide unit includes a slide rail and a slider, the slider being slidably engaged with the slide rail; wherein the slide rail extends along the direction of movement of the cover plate, one of the slide rail and the slider is mounted on the housing, and the other is mounted on the cover plate.

[0017] In one embodiment, the ground charging device further includes a lifting module and a ground connector, the lifting module being installed inside the housing and the ground connector being installed on the lifting module; wherein, when the charging opening is in an open state, at least a portion of the lifting module can extend from the charging opening to lift the ground connector.

[0018] In one embodiment, the ground-mounted charging device further includes a walking module mounted on the housing and capable of moving the housing on the target surface and to the bottom of the vehicle.

[0019] The second aspect of this application provides the following technical solution:

[0020] A charging pile system includes a pile body, a charging gun, and a ground-end charging device as described in any of the above embodiments, wherein the charging gun and the ground-end charging device are both electrically connected to the pile body.

[0021] The third aspect of this application provides the following technical solution:

[0022] 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.

[0023] Compared with existing technologies, the ground-mounted charging device, charging pile system, and charging system provided in this application, by moving the ground-mounted charging device, can meet the needs of automatic docking charging when the vehicle has a certain parking deviation, reducing the difficulty of docking charging. Furthermore, by setting a movable cover plate, the charging opening can be opened or closed. That is, when charging is needed, the charging opening is opened using the cover plate; when charging is not needed, the cover plate closes the charging opening, thereby protecting the internal components of the housing and preventing them from being damaged due to prolonged exposure. Simultaneously, the opening and closing drive component and / or transmission unit are installed on the side of the housing, thus reducing the space occupied by these structures on the top of the housing and preventing any impact or interference to the internal components during charging docking. Attached Figure Description

[0024] 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.

[0025] Figure 1 A schematic diagram of the ground charging device provided in this application when the charging opening is open;

[0026] Figure 2 The structural diagram of the opening and closing mechanism provided in this application omits the first cover plate and the second cover plate;

[0027] Figure 3 A schematic diagram of the ground-end charging device provided in this application when the charging opening is closed;

[0028] Figure 4 for Figure 3 Sectional view at point AA;

[0029] Figure 5 A schematic diagram of the ground charging device provided in this application when the charging opening is open;

[0030] Figure 6 for Figure 5 Sectional view at point BB;

[0031] Figure 7 A structural schematic diagram of the lifting linkage provided in this application;

[0032] Figure 8 This is a structural schematic diagram of the walking module provided in this application;

[0033] Figure 9 This is a structural schematic diagram of the charging pile system provided in this application;

[0034] Figure 10 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; 1111. First opening; 112. Mounting slot; 1121. Accommodation space; 1122. Second opening; 20. Dating module; 21. Ground connector; 30. Opening / closing module; 31. Cover plate; 31a. First cover plate; 31b. Second cover plate; 311. Baffle; 311a. First baffle; 311b. Second baffle; 312. Connecting plate; 312a. First connecting plate; 312b. Second connecting plate; 313. Connecting block; 313a. First connecting block; 313b. Second connecting block; 32. Opening / closing drive component; 321. Opening / closing drive rod; 33. Transmission unit; 331, transmission wheel; 331a, first transmission wheel; 331b, second transmission wheel; 3311, transmission groove; 332, transmission component; 3321, first transmission part; 3322, second transmission part; 34, guide unit; 341, slide rail; 342, slider; 40, lifting module; 41, protective cover; 42, lifting linkage; 60, walking module; 61, drive wheel set; 611, drive wheel; 612, rotary drive component; 62, omnidirectional 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] In related technologies, conductive contact charging devices often achieve charging by connecting to the charging port on the car through a connector. The connector and other components are exposed. However, if the connector is constantly exposed to the outside world, the risk of damage to the connector will increase.

[0044] Please see Figures 1 to 10 This application provides a ground-mounted charging device 10, which can move to the bottom of the vehicle from a target surface M to dock with a vehicle-mounted charging device 310 for charging. Here, the target surface M can be the surface of the parking space and / or the surface of the area where the ground-mounted charging device 10 moves. By moving the ground-mounted charging device 10, the need for automatic docking charging under parking deviation conditions can be met, reducing the difficulty of docking charging.

[0045] Specifically, such as Figure 1 and Figure 2As shown, the ground-side charging device 10 includes a housing 11 and an opening / closing module 30. The housing 11 has a charging opening 111. The opening / closing module 30 includes a cover plate 31, an opening / closing drive member 32, and a transmission unit 33. The cover plate 31 is movably connected to the housing 11 and is used to close or open the charging opening 111. The opening / closing drive member 32 is connected to the cover plate 31 through the transmission unit 33 to drive the cover plate 31 to move relative to the housing 11 and close or open the charging opening 111. It can be understood that this application uses a movable cover plate 31 to open or close the charging opening 111. When charging is required, the cover plate 31 opens the charging opening 111. When charging is not required, the cover plate 31 closes the charging opening 111, thereby covering the charging opening 111 and protecting the internal components of the housing 11 from prolonged exposure and damage.

[0046] In one embodiment, such as Figure 1 and Figure 7 As shown, the ground charging device 10 also includes a lifting module 40 and a ground connector 21. The lifting module 40 is extendable or retractable and is mounted on the housing 11. The ground connector 21 is mounted on the end of the lifting module 40 facing the charging opening 111. When the charging opening 111 is open, at least a portion of the lifting module 40 can extend from the charging opening 111 to lift the ground connector 21 along the height direction Z of the housing 11. Thus, the ground charging device 10, through the lifting module 40, can adapt to vehicles with different chassis heights, ensuring reliable docking.

[0047] For example, when the charging opening 111 is open, such as Figure 1 and Figure 10 As shown, after the lifting module 40 is lifted, the ground connector 21 can smoothly cooperate with the vehicle-side charging device 310 to charge the vehicle; when the charging opening 111 is closed, as Figure 3 As shown, the cover plate 31 can protect the components (such as the lifting module 40 and the ground connector 21) inside the housing 11, thereby improving the safety and service life of the components inside the housing 11.

[0048] Furthermore, the ground charging device 10 also includes a docking module 20, which is installed on the end of the lifting module 40 facing the charging opening 111. The docking module 20 includes the aforementioned ground connector 21 and is used to identify the light source signal on the vehicle-side charging device 310 and determine whether the ground charging device 10 is aligned with the vehicle-side charging device 310 based on the light source signal, thereby improving the docking speed and reliability of the ground charging device 10 and the vehicle-side charging device 310.

[0049] In one embodiment, such as Figure 2As shown, in the height direction Z of the housing 11, the top of the housing 11 has a first opening 1111, which forms the aforementioned charging opening 111. A cover plate 31 extends from the top of the housing 11 to the side of the housing 11, and an accommodating space 1121 is formed between the cover plate 31 and the corresponding side of the housing 11. The opening / closing drive member 32 and / or the transmission unit 33 are accommodated in the accommodating space 1121, and as the opening / closing drive member 32 is driven, the cover plate 31 can simultaneously open or close the first opening 1111 and the accommodating space 1121. In this way, the assembly difficulty of the opening / closing drive member 32 and the transmission unit 33 can be reduced, and the space occupied by the housing 11 can be reduced, avoiding interference with the lifting module 40 during lifting. That is, here, the opening / closing drive member 32 and / or the transmission unit 33 are installed at the side position of the housing 11, which can reduce the occupation of these structures at the top position of the housing 11, thereby avoiding the influence or interference on the lifting action of the lifting module 40.

[0050] Specifically, the side of the housing 11 has a mounting groove 112 with a second opening 1122, forming the aforementioned accommodating space 1121. The opening / closing drive member 32 and / or transmission unit 33 are accommodated in the mounting groove 112. The cover plate 31 can simultaneously open or close the first opening 1111 and the second opening 1122. By accommodating the opening / closing drive member 32 and the transmission unit 33 in the mounting groove 112, protection is provided for the opening / closing drive member 32 and the transmission unit 33, further reducing the probability of collision and interference with external structures and improving structural safety.

[0051] Further, please refer to Figure 2 and Figure 3 To achieve the connection between the cover plate 31 and the transmission component 332, the cover plate 31 includes a baffle 311 and a connecting plate 312. The baffle 311 is movably disposed at the charging opening 111, and the connecting plate 312 is located on the side of the housing 11, forming an accommodating space 1121 between it and the side of the housing 11, and is connected to the baffle 311 and the transmission unit 33 respectively. That is, the cover plate 31 forms a bent L-shaped structure, which extends to the side of the housing 11 through the connecting plate 312, thereby facilitating the connection with the transmission component 332 and reducing the connection difficulty. The cover plate 31 also includes a connecting block 313, which is installed on the side of the connecting plate 312 facing the side of the housing 11 and is used to connect the transmission unit 33. In this way, when the opening and closing drive component 32 drives the transmission unit 33 to move, the transmission unit 33 can drive the cover plate 31 to move through the connecting block 313, thereby opening or closing the charging opening 111.

[0052] In one embodiment, please refer to Figure 1 , Figure 3 and Figure 5The cover plate 31 consists of two parts: a first cover plate 31a and a second cover plate 31b. Both cover plates 31a and 31b are slidably positioned at the charging opening 111 and are connected to the transmission unit 33. The opening / closing drive unit 32 drives the first cover plate 31a and the second cover plate 31b to move closer or further apart via the transmission unit 33, thereby closing or opening the charging opening 111. By dividing the cover plate 31 into two parts (first cover plate 31a and second cover plate 31b), the movement distance of each part is reduced, lowering the difficulty of movement. Therefore, the opening and closing mechanism of the cover plate 31 here adopts a split-type structure.

[0053] Of course, in other embodiments, the cover plate 31 can also be a single unit, that is, the cover plate 31 can also be opened and closed in a flat manner to realize the opening and closing of the charging opening 111.

[0054] This application specifically uses a first cover plate 31a and a second cover plate 31b as an example to illustrate how the cover plate 31 enables the opening and closing of the charging opening 111.

[0055] Specifically, please refer to Figure 4 and Figure 6 To achieve synchronous movement of the first cover plate 31a and the second cover plate 31b, in one embodiment, the transmission unit 33 includes a transmission wheel 331 and a transmission member 332. The transmission wheel 331 includes a first transmission wheel 331a and a second transmission wheel 331b, both of which are rotatably connected to the housing 11. The transmission member 332 is wound around the first transmission wheel 331a and the second transmission wheel 331b and is driveably connected to them. The first cover plate 31a and the second cover plate 31b are both connected to the transmission member 332, and the opening / closing drive member 32 is connected to the transmission member 332. That is, the transmission unit 33 forms a belt-like transmission structure. After the opening / closing drive member 32 is connected to the transmission member 332, the first cover plate 31a and the second cover plate 31b can be moved closer or further apart through the transmission member 332, thus closing or opening the charging opening 111.

[0056] Please continue reading. Figure 4 and Figure 6The portion of the transmission member 332 located on one side of the line K connecting the centers of the first transmission wheel 331a and the second transmission wheel 331b is defined as the first transmission part 3321, and the portion of the transmission member 332 located on the other side of the line K is defined as the second transmission part 3322. The first cover plate 31a is connected to the first transmission part 3321, and the second cover plate 31b is connected to the second transmission part 3322. Thus, when the transmission member 332 rotates, since the first transmission part 3321 and the second transmission part 3322 rotate in opposite directions, by connecting the first cover plate 31a and the second cover plate 31b to the first transmission part 3321 and the second transmission part 3322 respectively, the first cover plate 31a and the second cover plate 31b can move synchronously closer or further apart, thereby closing or opening the charging opening 111.

[0057] Furthermore, a sealing strip can be provided at the contact point between the first cover plate 31a and the second cover plate 31b when they are closed, so as to provide protection through the elastic compression of the sealing strip, thereby improving the reliability of the overall structural fit and the overall protection level.

[0058] Please see Figure 2 The outer periphery of both the first transmission wheel 331a and the second transmission wheel 331b is provided with a transmission groove 3311, and part of the transmission component 332 is installed in the transmission groove 3311. The sidewall of the transmission groove 3311 can stop the transmission component 332, preventing the transmission component 332 from disengaging from the first transmission wheel 331a and the second transmission wheel 331b, thereby effectively improving the transmission cooperation effect between the transmission component 332 and the first transmission wheel 331a and the second transmission wheel 331b. Specifically, the transmission component 332 can be configured as a steel wire rope. In this way, the structure of the transmission component 332 is simple, and the cooperation with the first transmission wheel 331a and the second transmission wheel 331b is also simpler, which can reduce the risk of jamming when cooperating with the transmission groove 3311. However, it is not limited to this. In other embodiments, the transmission component 332 can also be a conveyor belt or a chain, etc., which can be reasonably set according to actual needs.

[0059] Please continue reading. Figure 3 and Figure 5 When the cover plate 31 includes a first cover plate 31a and a second cover plate 31b, both the first cover plate 31a and the second cover plate 31b are L-shaped. Specifically, the first cover plate 31a includes a first baffle 311a and a first connecting plate 312a. The first baffle 311a is movably disposed at the charging opening 111, and the first connecting plate 312a is located on the side of the housing 11 and is connected to the first baffle 311a and the transmission unit 33, respectively. The second cover plate 31b includes a second baffle 311b and a second connecting plate 312b. The second baffle 311b is movably disposed at the charging opening 111, and the second connecting plate 312b is located on the side of the housing 11 and is connected to the second baffle 311b and the transmission unit 33, respectively.

[0060] Furthermore, to achieve the connection between the first cover plate 31a and the second cover plate 31b and the transmission unit 33, such as... Figure 4 and Figure 6 As shown, the first cover plate 31a further includes a first connecting block 313a, which is fixedly connected to the first connecting plate 312a and the first transmission part 3321. The second cover plate 31b further includes a second connecting block 313b, which is fixedly connected to the second connecting plate 312b and the second transmission part 3322. Thus, the connection between the first cover plate 31a, the second cover plate 31b, and the transmission part 332 is simple.

[0061] In one embodiment, please Figure 2 , Figure 4 and Figure 6 The opening / closing drive member 32 is located between the first transmission wheel 331a and the second transmission wheel 331b, and between the first transmission part 3321 and the second transmission part 3322. In this way, the opening / closing drive member 32 can utilize the space between the first transmission wheel 331a and the second transmission wheel 331b, thereby improving space utilization.

[0062] Furthermore, since the opening / closing drive component 32 is located between the first transmission wheel 331a and the second transmission wheel 331b, it is not easy for the opening / closing drive component 32 to directly drive the first transmission wheel 331a or the second transmission wheel 331b to rotate. Based on this, the opening / closing module 30 also includes an opening / closing drive rod 321, which is connected to the output end of the opening / closing drive component 32 and the transmission component 332, respectively. That is, the opening / closing drive component 32 directly drives the transmission component 332 to move through the opening / closing drive rod 321, which is simple to connect and convenient to operate.

[0063] Here, the opening and closing drive component 32 can be configured as a drive cylinder, linear motor, or electric push rod, etc.

[0064] In one embodiment, such as Figure 2 As shown, in order to ensure the stability of the movement of the first cover plate 31a and the second cover plate 31b, the ground terminal charging device 10 also includes a guiding unit 34. The guiding unit 34 is disposed between the housing 11 and the cover plate 31 to guide the opening or closing movement of the cover plate 31 relative to the housing 11, thereby improving the reliability of the movement of the cover plate 31.

[0065] Specifically, see Figure 2 , Figure 4 and Figure 6The guiding unit 34 includes a slide rail 341 and a slider 342, with the slider 342 slidingly engaged with the slide rail 341. The slide rail 341 extends along the direction of movement of the cover plate 31. One of the slide rail 341 and the slider 342 is mounted on the housing 11, and the other is mounted on the cover plate 31. Thus, the sliding guidance of the slide rail 341 and the slider 342 improves the straightness of the cover plate 31's movement, thereby ensuring reliable movement of the cover plate 31.

[0066] For example, in this embodiment, the slide rail 341 is disposed on the housing 11, and the slider 342 is disposed on the cover plate 31. Furthermore, when the cover plate 31 includes a first cover plate 31a and a second cover plate 31b, sliders 342 can be disposed on both the first cover plate 31a and the second cover plate 31b. To further improve guiding reliability, two slide rails 341 can be disposed on the housing 11, with the two slide rails 341 arranged in parallel and spaced apart.

[0067] Please see Figure 1 and Figure 7 In one embodiment, 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.

[0068] 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.

[0069] like Figure 8 As shown, the ground charging device 10 also includes a walking module 60, which is installed on the housing 11 and can drive the housing 11 to move on the target surface M and to the bottom of the vehicle. That is, the movement of the ground charging device 10 on the target surface M is achieved by the walking module 60.

[0070] Furthermore, 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 drive wheel set 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 precisely adjust its position and move directly below the vehicle-side connector 320. This meets the requirement 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 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 further here.

[0071] 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.

[0072] like Figure 9 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.

[0073] 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.

[0074] like Figure 10As 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 a vehicle-side connector 320 is provided on the vehicle-side charging device 310. The ground-side charging device 10 can be moved to the bottom of the vehicle, and the ground-side connector 21 and the vehicle-side connector 320 are connected for charging, thereby realizing the connection with the vehicle-side charging device 310.

[0075] 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.

[0076] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively 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 (10) includes a housing (11), a cover plate (31), an opening and closing drive (32), and a transmission unit (33). The housing (11) has a charging opening (111), and the cover plate (31) is movably connected to the housing (11) and is used to close or open the charging opening (111). The opening and closing drive (32) is connected to the cover plate (31) through the transmission unit (33) to drive the cover plate (31) to move relative to the housing (11) and close or open the charging opening (111). The cover plate (31) extends from the top of the housing (11) to the side of the housing (11), and an accommodating space (1121) is formed between the cover plate (31) and the side of the housing (11). The opening and closing drive (32) and / or the transmission unit (33) are housed in the accommodating space (1121).

2. The ground-end charging device according to claim 1, characterized in that, The top of the housing (11) has a first opening (1111), which forms the charging opening (111). As the opening and closing drive (32) is driven, the cover plate (31) can simultaneously open or close the first opening (1111) and the accommodating space (1121).

3. The ground-end charging device according to claim 2, characterized in that, The side of the housing (11) is provided with a mounting groove (112) having a second opening (1122), the mounting groove (112) forms the accommodating space (1121), and the opening and closing drive member (32) and / or the transmission unit (33) are accommodated in the mounting groove (112). The cover plate (31) can simultaneously open or close the first opening (1111) and the second opening (1122).

4. The ground-end charging device according to claim 2, characterized in that, The cover plate (31) includes a baffle (311) and a connecting plate (312). The baffle (311) is movably disposed at the charging opening (111). The connecting plate (312) is located on the side of the housing (11) and forms the accommodating space (1121) between the side of the housing (11) and the side of the housing (11), and is connected to the baffle (311) and the transmission unit (33) respectively.

5. The ground-end charging device according to claim 4, characterized in that, The cover plate (31) also includes a connecting block (313), which is installed on one side of the connecting plate (312) facing the housing (11) and is used to connect the transmission unit (33).

6. The ground terminal charging device according to any one of claims 1-5, characterized in that, The number of the cover plates (31) is set to two, and the two cover plates (31) are set as a first cover plate (31a) and a second cover plate (31b). The first cover plate (31a) and the second cover plate (31b) are slidably disposed at the charging opening (111) and are both connected to the transmission unit (33). The opening and closing drive (32) drives the first cover plate (31a) and the second cover plate (31b) to move closer or further apart from each other through the transmission unit (33) to close or open the charging opening (111).

7. The ground terminal charging device according to claim 6, characterized in that, The transmission unit (33) includes: The transmission wheel (331) has a first transmission wheel (331a) and a second transmission wheel (331b), both of which are rotatably connected to the housing (11). The transmission component (332) is wound around the first transmission wheel (331a) and the second transmission wheel (331b), and is connected to the first transmission wheel (331a) and the second transmission wheel (331b) in a transmission connection. The first cover plate (31a) and the second cover plate (31b) are both connected to the transmission member (332), and the opening and closing drive member (32) is connected to the transmission member (332).

8. The ground terminal charging device according to claim 7, characterized in that, The portion of the transmission component (332) located on one side of the line connecting the centers of the first transmission wheel (331a) and the second transmission wheel (331b) is defined as the first transmission part (3321), and the portion of the transmission component (332) located on the other side of the line connecting the centers of the first transmission wheel (331a) and the second transmission wheel (331b) is defined as the second transmission part (3322). The first cover plate (31a) is connected to the first transmission part (3321), and the second cover plate (31b) is connected to the second transmission part (3322).

9. The ground terminal charging device according to claim 7, characterized in that, Both the first transmission wheel (331a) and the second transmission wheel (331b) have transmission grooves (3311) on their outer periphery, and part of the transmission component (332) is installed in the transmission grooves (3311).

10. The ground-end charging device according to claim 1, characterized in that, The ground charging device (10) further includes a guide unit (34), which is located between the housing (11) and the cover plate (31) to guide the opening or closing movement of the cover plate (31) relative to the housing (11).

11. The ground terminal charging device according to claim 10, characterized in that, The guide unit (34) includes a slide rail (341) and a slider (342), wherein the slider (342) slides in conjunction with the slide rail (341); The slide rail (341) extends along the movement direction of the cover plate (31), and one of the slide rail (341) and the slider (342) is installed on the housing (11) and the other is installed on the cover plate (31).

12. The ground-end charging device according to claim 1, characterized in that, The ground charging device (10) further includes a lifting module (40) and a ground connector (21). The lifting module (40) is installed inside the housing (11), and the ground connector (21) is installed on the lifting module (40). When the charging opening (111) is in the open state, at least a portion of the lifting module (40) can extend from the charging opening (111) to lift the ground connector (21).

13. The ground-end charging device according to claim 1, characterized in that, The ground charging device (10) also includes a walking module (60), which is installed on the housing (11) and can drive the housing (11) to move on the target surface (M) and to the bottom of the vehicle.

14. 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 1-13, wherein the charging gun (220) and the ground-end charging device (10) are both electrically connected to the pile body (210).

15. 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 1-13, wherein the vehicle-side charging device (310) and the ground-side charging device (10) are capable of docking for charging.

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