Charging system

Abstract

Disclosed in the present application is a charging system (100). The charging system (100) comprises: a charging pile (10), a plurality of first power supply interfaces (20), and a power supply apparatus (30) configured to output first charging electric energy to the plurality of first power supply interfaces (20) on the basis of electric energy of a power supply (200), wherein when the charging pile (10) moves to a target first power supply interface, and a first power supply input interface (11) of the charging pile is connected to the target first power supply interface, or the first power supply input interface (11) of the charging pile extends to the target first power supply interface and is connected to the target first power supply interface, the charging pile (10) charges, on the basis of the first charging electric energy and / or second charging electric energy that is provided by an energy storage apparatus (12), a vehicle in a target parking space corresponding to the target first power supply interface.

Description

Charging system

[0001] Cross-references to related applications

[0002] This disclosure claims priority to Chinese patent application No. 202421383259.4, filed on June 17, 2024, entitled “Charging System”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of charging technology, and more specifically to a charging system. Background Technology

[0004] Currently, electric vehicle charging stations typically use a one-charging-pile-per-parking-space installation scheme. This scheme results in high initial investment costs for charging stations, and in practice, the utilization rate of charging piles is low, with a high actual idle rate, leading to an excessively long investment recovery period and hindering rapid profitability.

[0005] Public content

[0006] In view of the above problems, this application provides a charging system that solves the problems of high charging pile idle rate and high overall economic investment in the charging station design scheme of setting one charging pile per parking space. At the same time, since the charging pile can meet the charging needs of vehicles in different parking spaces, the number of charging piles installed is reduced, thus reducing costs. In addition, during the charging process, by controlling one or more of the energy storage device and power supply to charge the vehicle, different charging power requirements and different charging scenarios can be met, thus ensuring the charging effect.

[0007] This application provides a charging system for providing charging services to multiple fixed parking spaces. The system includes: a charging pile, which is equipped with a first power input interface and an energy storage device; multiple first power input interfaces, each corresponding to one of the multiple fixed parking spaces; and a power supply device, which is connected to the multiple first power input interfaces and a power supply, and is configured to output first charging energy to the multiple first power input interfaces based on the power supply. Specifically, when the charging pile moves to a target first power input interface and the first power input interface of the charging pile connects to the target first power input interface, or when the first power input interface of the charging pile extends to and connects to the target first power input interface, the charging pile charges the vehicle in the target parking space corresponding to the target first power input interface based on the first charging energy and / or the second charging energy provided by the energy storage device.

[0008] In the technical solution of this application, multiple first power supply interfaces are configured one-to-one with multiple fixed parking spaces. These interfaces are connected to a power supply via a power supply device. When a vehicle in a target fixed parking space requires charging, the owner parks the vehicle in one of the spaces. At this time, the charging pile can move to the target first power supply interface corresponding to that fixed parking space, or the first power supply output interface of the charging pile can extend to the target first power supply interface corresponding to that fixed parking space. The owner connects the first power supply input interface of the charging pile to the target first power supply interface, and the power supply output interface of the charging pile (i.e., the charging gun) connects to the vehicle's charging port, thus executing the charging process. During the charging process, the vehicle can be charged using only the first charging energy provided by the power supply, or only the second charging energy provided by the energy storage device within the charging pile. Alternatively, the vehicle can be charged simultaneously using both the first charging energy provided by the power supply and the second charging energy provided by the energy storage device within the charging pile to achieve high-power charging. The specific control strategy can be set based on the actual situation and charging power requirements. This technical solution addresses the issues of high charging pile idle rates and excessive overall economic investment inherent in the traditional charging station design where one charging pile is installed per parking space. Furthermore, by using charging piles, the solution can meet the charging needs of vehicles in different parking spaces, reducing the number of charging piles required and lowering costs. Additionally, during the charging process, by controlling one or more of the energy storage device and power supply to charge the vehicle, the solution can meet different charging power requirements and application scenarios, ensuring effective charging.

[0009] In some embodiments, the charging pile is further provided with a second power input interface, and the charging system further includes multiple second power input interfaces, which are configured one-to-one with the multiple first power input interfaces. The power supply device is also connected to the multiple second power input interfaces and outputs third charging energy to the multiple second power input interfaces based on the power supply. When the charging pile moves to the target second power input interface and the second power input interface of the charging pile is connected to the target second power input interface, or when the second power input interface of the charging pile extends to and connects to the target second power input interface, the charging pile also charges the energy storage device based on the third charging energy. The target second power input interface corresponds to the target first power input interface.

[0010] When the charging pile moves to the target first power supply interface or the target second power supply interface, or when the charging pile remains stationary and only the first power supply input interface of the charging pile extends to the target first power supply interface and the second power supply input interface extends to the target second power supply interface, the first power supply input interface of the charging pile connects to the target first power supply interface, the second power supply interface connects to the target second power supply interface, and the charging output interface connects to the vehicle's charging port. During the charging process, if the output power of the power supply can meet the vehicle's power requirements, the vehicle is charged using the first charging energy provided by the power supply. At this time, if the stored energy in the energy storage device is lower than a preset energy threshold, the energy storage device is simultaneously charged using the third charging energy provided by the power supply. In this way, the power supply can automatically replenish the energy storage device, ensuring sufficient energy in the energy storage device and guaranteeing the charging effect. At the same time, manual replenishment of the energy storage device is not required, reducing labor costs and making the charging process more convenient.

[0011] In some embodiments, the power supply device includes: a first power conversion unit, one end of which is connected to an AC power grid; and a second power conversion unit, one end of which is connected to the other end of the first power conversion unit, and the other end of which is connected to the plurality of first power supply interfaces and the plurality of second power supply interfaces; wherein, the first charging energy and the third charging energy are output based on the electrical energy of the AC power grid through the first power conversion unit and the second power conversion unit.

[0012] The first power conversion unit converts AC power from the AC grid into DC power, and the second power conversion unit performs voltage conversion on the DC power to output first and third charging energy at target voltages. The voltages of the first and third charging energy can be the same or different, depending on the specific application. In this way, the first and second power conversion units convert AC grid power into first and third charging energy to meet charging needs in different scenarios and ensure effective charging of vehicles and energy storage devices.

[0013] In some embodiments, the first power conversion unit and the second power conversion unit are unidirectional AC-DC (Alternating Current-Direct Current) conversion units, and the second power conversion unit is a unidirectional DC-DC (Direct Current-Direct Current) conversion unit; or, the first power conversion unit is a bidirectional AC-DC conversion unit or a bidirectional DC-DC conversion unit. This allows for unidirectional or bidirectional energy flow, adapting to energy demands in different application scenarios and ensuring effective charging.

[0014] In some embodiments, the first power input interface and the first power interface are connected by a plug-in method, which simplifies the connection between the first power input interface and the first power interface and makes the charging process more convenient.

[0015] In some embodiments, one of the first power input interface and the first power interface is a plug and the other is a socket, which simplifies the connection between the first power input interface and the first power interface and makes the charging process more convenient.

[0016] In some embodiments, the second power input interface and the second power supply interface are connected in a mating manner. This allows for automatic mating between the second power input interface and the second power supply interface, eliminating the need for manual operation and preventing situations where the energy storage device fails to supply power to the vehicle after charging due to the user forgetting to connect the second power input interface and the second power supply interface.

[0017] In some embodiments, the second power input interface and the second power supply interface are conductive sheets or conductive blocks. This allows for automatic docking of the second power input interface and the second power supply interface without manual intervention, preventing situations where the energy storage device fails to supply power to the vehicle after charging due to the user forgetting to connect the second power input interface and the second power supply interface.

[0018] In some embodiments, the charging system further includes: a plurality of triggers, each trigger being configured to correspond one-to-one with the plurality of fixed parking spaces, the plurality of triggers being configured to trigger the charging pile to move to its respective first power supply interface and second power supply interface; or, configured to trigger the first power supply input interface and second power supply input interface of the charging pile to extend or retract to their respective first power supply interface and second power supply interface.

[0019] In the charging system, triggers, fixed parking spaces, a first power supply interface, and a second power supply interface are configured in a one-to-one correspondence. When vehicle charging is required, the triggers are activated to send a trigger signal to the charging pile. The charging pile can then determine the target location based on the received trigger signal. At this point, the charging pile can move entirely to the target location, or only the first and second power supply input interfaces of the charging pile can be extended or retracted to the target location, so that the first power supply input interface of the charging pile connects to the target first power supply interface, and the second power supply input interface of the charging pile connects to the target second power supply interface for charging. The charging pile can automatically move based on the status of multiple triggers, making the charging process more convenient.

[0020] In some embodiments, the trigger is a parking space information identifier including parking space information. The charging pile is also communicatively connected to a terminal device. The terminal device is configured to obtain the parking space information based on the parking space information identifier. The charging pile is also configured to automatically move to the target first power supply interface and the target second power supply interface based on the parking space information of the target parking space sent by the terminal device. Alternatively, the charging pile is further configured to control its first power supply input interface and second power supply input interface to extend and retract to the target first power supply interface and the target second power supply interface based on the parking space information of the target parking space sent by the terminal device. By identifying the parking space information identifier of the target parking space through the terminal device to obtain the parking space information of the target parking space, and transmitting the parking space information of the target parking space to the charging pile via wireless communication, the charging pile automatically moves to the target power supply interface of the target parking space according to the received parking space information, or controls its first power supply input interface and second power supply input interface to move to the target power supply interface of the target parking space, making the charging process more convenient.

[0021] In some embodiments, the parking space information is identified as a barcode or QR code. This allows a terminal device to scan the barcode or QR code of the target parking space to obtain its information. The terminal device then wirelessly transmits this information to the charging pile, enabling the charging pile to automatically move to the target power supply interface of the target parking space based on the received information, or to automatically extend or retract its first and second power input interfaces to the target power supply interface, making the charging process more convenient.

[0022] In some embodiments, the trigger is a parking space switch connected to the charging pile, and the charging pile is further configured to automatically move to the target first power supply interface and the target second power supply interface when the state of the parking space switch corresponding to the target parking space is the target state; or, the charging pile is further configured to control its own first power supply input interface and second power supply input interface to extend and retract to the target first power supply interface and the target second power supply interface when the state of the parking space switch corresponding to the target parking space is the target state.

[0023] The parking space switch and the charging pile can be connected via wired or wireless means. For example, when the parking space switch is a mechanical switch, it is located on one side of the corresponding fixed parking space, and its status is transmitted to the charging pile via a wired connection. When the parking space switch is an electronic switch, such as a pressure sensor or infrared sensor, it detects the vehicle in the corresponding parking space and sends the detection result to the charging pile via wired or wireless means. When the charging pile recognizes the parking space switch as being in the target state, it uses the fixed parking space corresponding to the switch in the target state as the target parking space and automatically moves to the target power supply interface corresponding to the target parking space, or controls its first and second power input interfaces to automatically extend and retract to the target power supply interface, making the charging process more convenient.

[0024] In some embodiments, the parking space switch includes at least one of a mechanical switch, a pressure sensor, and an infrared sensor. When the charging pile detects that the parking space switch is in a target state, it determines the target parking space based on the parking space switch and automatically moves to the target power supply interface corresponding to the target parking space, or controls its own first power supply input interface and second power supply input interface to automatically extend and retract to the target power supply interface, making the charging process more convenient.

[0025] In some embodiments, the charging pile is further equipped with a sensing device and a moving device. The charging pile is also configured to control the moving device to automatically move to the target first power supply interface and the target second power supply interface based on the surrounding environment information sensed by the sensing device. Alternatively, the charging pile is further equipped with a sensing device and a telescopic device. The charging pile is also configured to control the telescopic device to extend and retract the first power supply input interface and the second power supply input interface to the target first power supply interface and the target second power supply interface based on the surrounding environment information sensed by the sensing device. The charging pile can automatically move to the target power supply interface through the sensing device and the moving device, or it can control its own first power supply input interface and second power supply input interface to extend and retract to the target first power supply interface and the target second power supply interface through the sensing device and the telescopic device, without the need for human operation, making the charging process more convenient.

[0026] In some embodiments, the charging system further includes: a movement route marker, which has multiple pile location markers, each corresponding to one of the multiple first power supply interfaces. The charging pile is further configured to control the movement device to automatically move to the target pile location marker corresponding to the target first power supply interface based on the surrounding environment information sensed by the sensing device; or, the charging pile is further configured to control the telescopic device to extend or retract the first power input interface to the target pile location marker corresponding to the target first power supply interface based on the surrounding environment information sensed by the sensing device. The charging pile moves quickly to the target power supply interface directly based on the movement route marker, which not only improves the movement speed but also eliminates the need for guide rails, saving costs.

[0027] In some embodiments, the number of charging piles is greater than 1 and less than the number of the plurality of fixed parking spaces. This allows multiple vehicles to be charged simultaneously using multiple charging piles, meeting the needs of multiple vehicles charging at the same time.

[0028] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0030] Figure 1 is a connection diagram of a charging system according to some embodiments of this application;

[0031] Figure 2 is a connection diagram of a charging system according to some embodiments of this application;

[0032] Figure 3 is a connection diagram of a charging system according to some embodiments of this application;

[0033] Figure 4 is a schematic diagram of the structure of a charging pile according to some embodiments of this application;

[0034] Figure 5 is a bottom schematic diagram of the mobile device of the charging pile according to some embodiments of this application;

[0035] Figure 6 is a schematic diagram of a charging system according to some embodiments of this application.

[0036] Reference numerals: Charging system 100, charging pile 10, first power input interface 11, energy storage device 12, power output interface 13, second power input interface 14, sensing device 15, moving device 16, roller 161, first power interface 20, power supply device 30, first power conversion unit 31, second power conversion unit 32, second power interface 40, trigger 50, moving route marker 60, power supply 200. Detailed Implementation

[0037] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0039] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0040] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0042] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0043] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0044] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0045] Currently, electric vehicle charging stations typically use a one-charging-pile-per-parking-space installation scheme. This scheme results in high initial investment costs for charging stations, and in practice, the utilization rate of charging piles is low, with a high actual idle rate, leading to an excessively long investment recovery period and hindering rapid profitability.

[0046] Therefore, this application proposes a charging system. In the technical solution of this application, multiple first power supply interfaces are configured one-to-one with multiple fixed parking spaces. The multiple first power supply interfaces are connected to a power supply through a power supply device. When a vehicle needs charging, the vehicle is parked in one of the fixed parking spaces, and the charging pile moves to the target first power supply interface corresponding to that fixed parking space, or the first power supply input interface of the charging pile extends to the target first power supply interface. The vehicle owner connects the first power supply input interface of the charging pile to the target first power supply interface, and the power output interface of the charging pile, i.e., the charging gun, is connected to the vehicle's charging port to charge the vehicle. During the charging process, the vehicle can be charged using only the first charging energy provided by the power supply, or only the second charging energy provided by the energy storage device in the charging pile, or simultaneously using both the first charging energy provided by the power supply and the second charging energy provided by the energy storage device in the charging pile to achieve high-power charging. The specific control strategy can be set based on the actual situation. This technical solution addresses the issues of high charging pile idle rates and excessive overall economic investment inherent in the traditional charging station design where one charging pile is installed per parking space. Furthermore, this charging pile can meet the charging needs of vehicles in different parking spaces, reducing the number of charging piles required and lowering costs. During the charging process, by controlling one or more of the energy storage device and power supply to provide charging energy, it can meet different charging power requirements and different scenario needs, ensuring effective charging.

[0047] For ease of explanation, the charging system of this application will be described in the following embodiments with reference to FIG1.

[0048] As shown in Figure 1, the charging system 100 of this application is used to provide charging services to multiple fixed parking spaces. The charging system 100 may include: a charging pile 10, multiple first power supply interfaces 20 and a power supply device 30.

[0049] The charging pile 10 is equipped with a first power input interface 11 and an energy storage device 12. Multiple first power input interfaces 20 are correspondingly arranged with multiple fixed parking spaces. The power supply device 30 is connected to the multiple first power input interfaces 20 and a power supply 200, and is configured to output first charging energy to the multiple first power input interfaces 20 based on the power supply. Specifically, when the charging pile 10 moves to the target first power input interface and the first power input interface 11 of the charging pile 10 connects to the target first power input interface, or when the first power input interface 11 of the charging pile 10 extends to and connects to the target first power input interface, the charging pile 10 charges the vehicle in the target parking space corresponding to the target first power input interface based on the first charging energy and / or the second charging energy provided by the energy storage device 12.

[0050] Specifically, the charging pile 10 can be moved as needed, either manually or automatically based on a trigger command. Alternatively, the first power input interface 11 of the charging pile 10 can be extended or retracted as needed, either manually or automatically based on a trigger command; the specific method is not limited. The charging pile 10 contains an energy storage device 12, which converts electrical energy into chemical energy and stores it in a battery, and is composed of multiple batteries. The charging pile 10 also has a charging output interface 13, such as a charging gun, which connects to the vehicle's charging port to charge the vehicle. Within the charging pile 10, the first power input interface 11 and the energy storage device 12 are adapted to connect to the charging output interface 13. For example, the first power input interface 11 and the energy storage device 12 are connected to the charging output interface 13 via a voltage conversion unit, which converts the first and second charging electrical energy into a target voltage to charge the vehicle. In addition, the charging pile 10 may not only have the function of power conversion, such as stepping down the received first charging power to output it for charging the vehicle, but may also have functions such as charging monitoring, such as real-time monitoring of operating parameters such as vehicle power demand, charging voltage, charging current, and charging time during the charging process, so as to control the charging process.

[0051] The first power supply interface 20 is set up one-to-one with the fixed parking space and is located near the corresponding fixed parking space for connection to the power input interface 11 of the charging pile 10. At the same time, multiple first power supply interfaces 20 are connected to the power supply 200 through the power supply device 30. The power supply 200 can be the AC grid, photovoltaic power generation system, etc., to provide electrical energy.

[0052] The power supply device 30 is an energy conversion device used to convert the electrical energy provided by the power supply 200 into first charging energy, and then supply the first charging energy to the charging pile 10 through the first power supply interface 20 for vehicle charging. In addition to supplying power to the charging pile 10 through the first power supply interface 20, the power supply device 30 also communicates with the charging pile 10 through the first power supply interface 20. The communication content may include vehicle power demand, real-time charging operating parameters, etc. Therefore, during the charging process, the power supply device 30 can control the output power of the current power supply 200 based on the vehicle power demand to ensure charging quality.

[0053] When a vehicle needs charging, the user parks the vehicle in the corresponding designated parking space, where the first power supply interface 20 is the target first power supply interface. When the charging pile 10 moves to the target first power supply interface, or when the first power supply input interface 11 of the charging pile 10 extends to the target first power supply interface, the vehicle owner connects the first power supply input interface 11 of the charging pile 10 to the target first power supply interface and connects the charging gun of the charging pile 10 to the vehicle's charging port. At this time, the vehicle to be charged establishes a charging circuit through the charging pile 10, the target first power supply interface, the power supply device 30, and the power supply 200, thereby initiating vehicle charging. During the charging process, the vehicle can be charged solely based on the first charging energy provided by the power supply 200. For example, if the stored energy in the energy storage device 12 is less than a preset lower limit, the vehicle can be charged by the first charging energy provided by the power supply 200. Alternatively, the vehicle can be charged solely based on the second charging energy provided by the energy storage device 12. For example, if the output of the power supply 200 is unstable or the output energy does not meet the preset charging conditions, and the stored energy in the energy storage device 12 reaches the preset energy threshold, the vehicle can be charged by the energy storage device 12. Or, the vehicle can be charged simultaneously based on both the first charging energy provided by the power supply 200 and the second charging energy provided by the energy storage device 12. For example, if the output power of the power supply 200 cannot meet the high-power charging requirements of the vehicle, the power supply 200 and the energy storage device 12 can charge the vehicle together to achieve high-power charging. The specific control strategy can be set based on the actual situation.

[0054] This technical solution addresses the issues of high charging pile idle rates and excessive overall economic investment inherent in designs where charging piles are matched one-to-one with parking spaces. Furthermore, during the charging process, by controlling one or more of the energy storage device and power supply to charge the vehicle, it can meet different charging power requirements and application scenarios, thus ensuring charging effectiveness.

[0055] In some embodiments of this application, as shown in FIG2, the charging pile 10 is further provided with a second power input interface 14, and the charging system 100 further includes a plurality of second power input interfaces 40, which are configured one-to-one with a plurality of first power input interfaces 20. The power supply device 30 is also connected to the plurality of second power input interfaces 40 and outputs third charging power to the plurality of second power input interfaces 40 based on the power supply 200. In the case that the charging pile 10 moves to the target second power input interface and the second power input interface 14 of the charging pile 10 is connected to the target second power input interface, or the second power input interface 14 of the charging pile 10 extends to the target second power input interface and is connected to the target second power input interface, the charging pile 10 also charges the energy storage device 12 based on the third charging power. The target second power input interface corresponds to the target first power input interface.

[0056] Specifically, the first power supply interface 20, the second power supply interface 40, and the fixed parking space are set up one-to-one. When the charging pile 10 moves to the target first power supply interface or the target second power supply interface, or when the first power supply input interface 11 and the second power supply input interface 14 of the charging pile 10 extend to the target first power supply interface or the target second power supply interface, the first power supply input interface 11 of the charging pile 10 is connected to the target first power supply interface, the second power supply input interface 14 is connected to the target second power supply interface, and the charging output interface 13 is connected to the vehicle's charging port to charge the vehicle.

[0057] For example, during the charging process, if the output power of the power supply 200 can meet the vehicle's power requirements, the vehicle is charged only using the first charging energy provided by the power supply 200. Simultaneously, the charge level in the energy storage device 14 is assessed. If the energy storage device 14 is not fully charged, the power supply 300 converts the excess energy provided by the power supply 200 into a third charging energy source to charge the energy storage device 14. This allows for simultaneous vehicle charging and energy storage device 14 recharging. The specific power allocation can be set according to actual conditions. Alternatively, after the vehicle is fully charged, the power supply 300 can convert the energy provided by the power supply 200 into a third charging energy source to charge the energy storage device 14, continuing this process until the energy storage device 14 is fully recharged, at which point charging ends.

[0058] This embodiment can automatically replenish the energy storage device 14 with power supply 200, so that the energy storage device 14 has sufficient power and provides a guarantee for the charging effect. At the same time, there is no need to manually replenish the energy storage device 14, which reduces labor costs and makes the charging process more convenient.

[0059] In some embodiments of this application, the power supply device 30 includes: a first power conversion unit 31, one end of which is connected to an AC power grid; and a second power conversion unit 32, one end of which is connected to the other end of the first power conversion unit 31, and the other end of which is connected to a plurality of first power supply interfaces and a plurality of second power supply interfaces 40; wherein, through the first power conversion unit 31 and the second power conversion unit 32, first charging energy and third charging energy are output based on the power energy of the AC power grid.

[0060] Specifically, this embodiment uses an AC power grid as the power supply 200, which provides AC power. A first power conversion unit 31 converts the AC power from the grid into direct current (DC). A second power conversion unit 32 converts the DC power output from the first power conversion unit 31 to output first and third charging energy at target voltages. The voltages of the first and third charging energy can be the same or different, depending on the specific application. In this way, the first and second power conversion units 31 and 32 convert AC grid power into charging energy for output, meeting charging needs in different scenarios and ensuring effective vehicle charging.

[0061] In some embodiments of this application, the first power conversion unit 31 is a unidirectional AC-DC conversion unit and the second power conversion unit 32 is a unidirectional DC-DC conversion unit; or, the first power conversion unit is a unidirectional AC-DC conversion unit and the second power conversion unit 32 is a bidirectional DC-DC conversion unit.

[0062] Specifically, when the first power conversion unit 31 is a unidirectional AC-DC conversion unit, it can only convert AC power supplied by the AC grid into DC power output. When the first power conversion unit 31 is a bidirectional AC-DC conversion unit, in addition to converting AC power supplied by the AC grid into DC power output, it can also convert DC power into AC power output to the AC grid.

[0063] When the second power conversion unit 32 is a unidirectional DC-DC converter, electrical energy can only be output from the first power conversion unit 31 to the first power supply interface 20 and the second power supply interface 40 through the second power conversion unit 32. When the second power conversion unit 32 is a bidirectional DC-DC converter, bidirectional flow of electrical energy between the first power conversion unit 31 and the power supply interface can be realized.

[0064] For example, when the power supply device 30 uses the first power conversion unit 31 as a unidirectional AC-DC conversion unit and the second power conversion unit 32 as a unidirectional DC-DC conversion unit, charging power is provided to the first power supply interface 20 and the second power supply interface 40 based on the AC power grid. When the power supply device 30 uses the first power conversion unit 31 as a bidirectional AC-DC conversion unit and the second power conversion unit 32 as a bidirectional DC-DC conversion unit, in addition to providing charging power to the first power supply interface 20 and the second power supply interface 40 through the AC power grid, external DC power can also be input into the AC power grid, realizing bidirectional flow of electrical energy between the power supply interface and the power supply 200.

[0065] This embodiment can realize unidirectional or bidirectional energy flow to meet the energy needs of different application scenarios, improve vehicle charging efficiency and application flexibility.

[0066] In some embodiments of this application, the first power input interface 11 and the first power input interface 20 are connected by a plug-in method.

[0067] One of the first power input interfaces 11 and 20 is a socket, and the other is a corresponding plug. For example, the first power input interface 11 is a plug, and the first power input interface 20 is a socket; or, the first power input interface 11 is a socket, and the first power input interface 20 is a plug, which can be applied according to the actual situation. The first power input interface 11 and the first power input interface 20 are connected by a plug-in method, which can reduce the difficulty of docking the first power input interface 11 and the first power input interface 20, reduce the application cost, and solve the problems of high automation docking difficulty and high contact internal resistance in the related technology of directly docking the positive and negative terminals of the power supply between the charging pile and the parking space, which cannot meet the high-power charging of existing electric vehicles.

[0068] In some embodiments of this application, the second power input interface 14 and the second power input interface 40 are connected via a mating method. For example, the second power input interface 14 and the second power input interface 40 are conductive sheets or conductive blocks. In this way, the second power input interface 14 and the second power input interface 40 can be automatically mated without manual operation, avoiding the situation where the energy storage device 14 is depleted after charging the vehicle due to the user forgetting to connect the second power input interface 14 and the second power input interface 40.

[0069] In some embodiments of this application, as shown in FIG3, the charging system 100 further includes: a plurality of trigger elements 50, which are configured to correspond one-to-one with a plurality of fixed parking spaces, and the plurality of trigger elements 50 are configured to trigger the charging pile to move to their respective first power supply interface 20 and second power supply interface 40; or, they are configured to trigger the first power supply input interface 11 and the second power supply input interface 14 of the charging pile to extend to their respective first power supply interface 20 and second power supply interface 40.

[0070] Specifically, the trigger 50, the fixed parking space, the first power supply interface 20, and the second power supply interface 40 are set up one-to-one.

[0071] The trigger 50 is used to trigger the charging pile 10 to move to the corresponding power supply interface, or to trigger the first power supply input interface 11 and the second power supply input interface 14 of the charging pile to their respective first power supply interface 20 and second power supply interface 40. The trigger 50 can be a device capable of emitting a corresponding trigger signal, or it can serve as an intermediate medium for generating the corresponding trigger signal. For example, the trigger 50 can be a mechanical switch, wired to the charging pile 10. In this case, the trigger 50 can be manually controlled to close or open, thereby outputting a corresponding trigger signal to the charging pile 10. The trigger 50 can also be a detection sensor, wirelessly connected to the charging pile 10. In this case, the detection sensor can automatically detect whether a vehicle is parked in the parking space, thereby outputting a corresponding trigger signal to the charging pile 10. The trigger 50 can also be a QR code, RFID tag, etc., storing location information, serving as an intermediate medium for generating the trigger signal. In this case, the user scans and identifies the trigger 50 with their mobile phone and sends a corresponding trigger signal to the charging pile 10.

[0072] It is understandable that the trigger signal includes location information. After receiving the trigger signal, the charging pile 10 can determine the target location, i.e. the fixed parking space corresponding to the trigger signal, based on signal analysis. Thus, the charging pile 10 moves to its respective first power supply interface 20 and second power supply interface 40 based on the trigger signal, or the charging pile 10 extends and retracts the first power supply input interface 11 and the second power supply input interface 14 to their respective first power supply interface 20 and second power supply interface 4 based on the trigger signal to perform subsequent vehicle charging.

[0073] This embodiment, through the setting of multiple triggers 50, can make the charging pile 10 automatically move to the target position, or make the first power input interface 11 and the second power input interface 14 of the charging pile 10 automatically extend and retract to the target position, making the charging process more convenient.

[0074] In some embodiments of this application, the trigger 50 is a parking space information identifier including parking space information, the charging pile 10 is also connected to the terminal device, and the charging pile 10 is also configured to automatically move to the target first power supply interface and the target second power supply interface based on the parking space information of the target parking space sent by the terminal device; or, the charging pile 10 is also configured to control its own first power supply input interface 11 and second power supply input interface 14 to extend and retract to the target first power supply interface and the target second power supply interface based on the parking space information of the target parking space sent by the terminal device.

[0075] Specifically, parking space information tags are carriers used to store parking space information, such as barcodes, QR codes, and RFID tags. Terminal devices are devices that can identify parking space information tags, such as mobile phones running the target APP (application, mobile software).

[0076] Taking a parking space information identifier as a QR code as an example, suppose a user parks their vehicle in a fixed parking space with serial number O2. The user then scans and identifies the QR code for that parking space using their mobile phone, obtaining the parking space information stored within the QR code, i.e., serial number O2. Based on this parking space information, a trigger signal is generated and sent to the charging pile 10. The charging pile 10 receives the trigger signal, wakes up, and parses the received trigger signal to obtain the parking space information. It then automatically moves to the first power supply interface or the second power supply interface corresponding to parking space O2, or controls its own first power supply input interface 11 to extend or retract to the first power supply interface corresponding to parking space O2. The second power input interface 14 extends to the second power input interface corresponding to the parking space 02. The user connects the first charging input interface 11 of the charging pile 10 to the first power input interface 20 of the parking space 02, connects the second charging input interface 12 of the charging pile 10 to the second power input interface 40 of the parking space 02, and connects the charging gun of the charging pile 10 to the charging port of the vehicle. The vehicle is charged by the first charging power provided by the power supply 200 and / or the second charging power provided by the energy storage device 14, and the energy storage device 14 is replenished by the third charging power provided by the power supply unit 200.

[0077] Therefore, by identifying the parking space information identifier of the target parking space through the terminal device, the parking space information of the target parking space is obtained, and the parking space information of the target parking space is transmitted to the charging pile via wireless communication. The charging pile 10 automatically moves to the target first power supply interface and the target second power supply interface of the target parking space according to the received parking space information of the target parking space, or controls its own first power supply input interface and second power supply input interface to extend and retract to the target first power supply interface and the target second power supply interface based on the parking space information of the target parking space sent by the terminal device, making the charging process more convenient.

[0078] In some embodiments of this application, the trigger 50 is a parking space switch connected to a charging pile. The charging pile is also configured to automatically move to the target first power supply interface and the target second power supply interface when the state of the parking space switch corresponding to the target parking space is the target state; or, the charging pile 10 is also configured to control its own first power supply input interface 11 and second power supply input interface 14 to extend to the target first power supply interface and the target second power supply interface when the state of the parking space switch corresponding to the target parking space is the target state.

[0079] Specifically, the parking space switch can be a mechanical switch or an electronic switch. The parking space switch can be located at the charging station or at the parking space itself. The connection between the parking space switch and the charging station 10 can be wireless or wired. For example, when the parking space switch is a mechanical switch, it is located on one side of the corresponding parking space, and the user controls the opening and closing of the mechanical switch. In this case, the status of the mechanical switch is transmitted to the charging station 10 via a wired connection. When the parking space switch is an infrared sensor, the infrared sensor can be located on one side of the corresponding parking space, automatically identifying whether a vehicle is parked in the corresponding parking space. In this case, the status is transmitted to the charging station 10 via a wired or wireless connection. When the parking space switch is a pressure sensor, the pressure sensor is located in the fixed parking space, determining whether a vehicle has entered by detecting pressure. In this case, the status is transmitted to the charging station 10 via a wired or wireless connection.

[0080] The target state is used to indicate that there is a charging demand at the corresponding location. For example, when the parking space switch is a mechanical switch, the closed state of the mechanical switch is the target state. After the mechanical switch is pressed, the target state is transmitted to the charging pile 10 via a wired connection. The charging pile 10 is awakened and automatically moves to the target first power supply interface and the target second power supply interface, or controls its own first power supply input interface 11 and second power supply input interface 14 to extend and retract to the target first power supply interface and the target second power supply interface, so as to charge the vehicle with the first charging energy provided by the power supply 200 and / or the second charging energy provided by the energy storage device 14, and to replenish the energy storage device 14 with the third charging energy provided by the power supply unit 200.

[0081] When the charging pile 10 detects that the parking space switch is in the target state, it takes the fixed parking space corresponding to the parking space switch in the target state as the target parking space and automatically moves to the target first power supply interface corresponding to the target parking space, or controls its own first power supply input interface 11 and second power supply input interface 14 to extend and retract to the target first power supply interface and the target second power supply interface, making the charging process more convenient.

[0082] In some embodiments of this application, the parking space switch includes at least one of a mechanical switch, a pressure sensor, and an infrared sensor.

[0083] Specifically, the parking space switch for each fixed parking space can employ one or more of the following: a mechanical switch, a pressure sensor, and an infrared sensor. For example, the parking space switch uses a combination of a mechanical switch and an infrared sensor. When a user correctly parks their vehicle in parking space 02, the infrared sensor in parking space 02 detects that a vehicle has entered. Simultaneously, the user presses the mechanical switch in parking space 02. Based on the infrared detection result of parking space 02 and the closed state of the mechanical switch, the charging pile determines that the parking space switch in parking space 02 is in the target state. It then automatically moves to the first power supply interface and the second power supply interface of parking space 02, or controls its own first power input interface 11 and second power input interface 14 to extend and retract to the first power supply interface and the second power supply interface of parking space 02, for charging the vehicle at parking space 02. In this way, when the charging pile 10 detects that the parking space switch is in the target state, it determines the target parking space based on the parking space switch and automatically moves to the target first power supply interface corresponding to the target parking space, or controls its own first power supply input interface 11 and second power supply input interface 14 to extend and retract to the target first power supply interface and the target second power supply interface, making the charging process more convenient.

[0084] In some embodiments of this application, as shown in FIG4, the charging pile 10 is further provided with a sensing device 15 and a moving device 16. The charging pile 10 is also configured to control the moving device 16 to automatically move to the target first power supply interface based on the surrounding environment information sensed by the sensing device 15. Alternatively, the charging pile 10 is further provided with a sensing device and a telescopic device. The charging pile is also configured to control the telescopic device to drive the first power supply input interface 11 and the second power supply input interface 14 to extend to the target first power supply interface and the target second power supply interface based on the surrounding environment information sensed by the sensing device.

[0085] Specifically, the sensing device 15 is used to detect surrounding environmental information, such as whether there are obstacles in the direction of travel, the current location information, and whether the target location has been reached. The sensing device 15 may include radar, position sensors, scanning and recognition devices, etc. The sensing device 15 can determine the movement route based on the detected surrounding environmental information to control the movement device 16 or the telescopic device to move, and determine whether the target location has been reached. The movement device 16 may include a control unit, a drive motor, and moving parts such as rollers installed on the charging pile 10 for moving the charging pile 10. The telescopic device may include a control unit, a drive motor, and moving parts such as rollers installed on the first power input interface 11 and the second power input interface 12 of the charging pile 10 for telescopic movement of the first power input interface 11 and the second power input interface 12.

[0086] Additionally, the charging pile 10 may or may not employ a guide rail structure. For example, when using a guide rail structure, the sensing device 15 can identify surrounding environmental information by recognizing position markers on the guide rail structure and control the moving device 16 or telescopic device to move along the guide rail. The moving device 16 or telescopic device may include a bottom locking mechanism that cooperates with the guide rail. When not using a guide rail structure, the sensing device 15 can identify surrounding environmental information through surrounding markers to determine whether the target position has been reached, and then control the moving device 16 or telescopic device to perform actions.

[0087] In this embodiment, the charging pile 10 automatically moves to the target power supply interface through the sensing device 15 and the moving device 16, or controls its own first power supply input interface 11 and second power supply input interface 12 to extend to the target power supply interface through the sensing device 15 and the telescopic device, without the need for manual intervention, making the charging process more convenient.

[0088] In some embodiments of this application, as shown in Figures 5 and 6, the charging system 100 further includes: a movement route marker 60, which has multiple pile location markers, each of which corresponds to a multiple first power supply interface 20. The charging pile 10 is also configured to control the movement device 16 to automatically move to the target pile location marker corresponding to the target first power supply interface based on the surrounding environment information sensed by the sensing device 15; or, the charging pile 10 is also configured to control the telescopic device to extend and retract the first power supply input interface 11 to the target pile location marker corresponding to the target first power supply interface based on the surrounding environment information sensed by the sensing device 15.

[0089] Specifically, the movement route marker 60 is used to mark the movement path of the charging pile 10. The charging pile 10, or the first power input interface 11 and the second power input interface 12, moves along the movement route marker 60. The pile position marker is used to mark the parking position of the charging pile 10, or the first power input interface 11 and the second power input interface 12, in each fixed parking space. The pile position marker, the first power input interface 20, the second power input interface 40 and the fixed parking space correspond one-to-one. When the charging pile 10 moves to the target first power input interface, it stops at the parking position corresponding to the target first power input interface, i.e., at the pile position marker, or the telescopic device is controlled to drive the first power input interface 11 to extend to the target pile position marker to facilitate the connection of the power input interface and charging.

[0090] Taking five fixed parking spaces and one mobile charging pile 10 as an example, the five fixed parking spaces are designated as parking space 01, parking space 02, parking space 03, parking space 04, and parking space 05. Each of the five fixed parking spaces is equipped with a first power supply interface and five second power supply interfaces. The mobile route marker 60 is labeled with five charging pile positions corresponding to the five first power supply interfaces 20: charging pile position 1, charging pile position 2, charging pile position 3, charging pile position 4, and charging pile position 5. When there is no charging demand (i.e., no vehicle is parked in any of the five parking spaces), the charging pile 10 is parked in a preset position. When there is a charging demand, the charging pile 10 can move to the target position based on a trigger signal. For example, when the parking space switch determines that a vehicle is parked in parking space 02 and charging is required, the charging pile 10 moves along the moving route marker 60. When the sensing device 15 identifies the parking space 2, it controls the moving device 16 to stop running, so that the charging pile 10 is parked at the parking space 2. Then, the user connects the first power input interface 11 of the charging pile 10 to the first power input interface of the parking space 02, the second power input interface 14 to the second power input interface of the parking space 02, and the charging output interface 13 of the charging pile 10, i.e., the charging gun, to the vehicle's charging port to charge the vehicle.

[0091] In this embodiment, the charging pile 10 can move to the target location based on the moving route marker 60, or the first power input interface 11 and the second power input interface 14 of the charging pile 10 can be extended and retracted to the target location based on the moving route marker 60. There is no need to lay guide rails, which not only makes the movement faster, but also saves costs.

[0092] In some embodiments of this application, the number of charging piles 10 is greater than 1 and less than the number of multiple fixed parking spaces.

[0093] When there are multiple charging piles 10, the trigger wake-up order of multiple charging piles 10 can be set in advance. The charging piles 10 are woken up according to the preset trigger order and move to the target location to perform the charging process. For example, the preset serial number can be used as the trigger order.

[0094] This embodiment can charge multiple vehicles simultaneously using multiple charging piles 10, meeting the needs of charging multiple vehicles at the same time.

[0095] As a specific embodiment of this application, referring to Figures 4, 5, and 6, the charging system 100 includes five fixed parking spaces, two movable charging piles, and a movement route marker 60. The five fixed parking spaces are designated as parking space 01, 02, 03, 04, and 05, respectively. Each fixed parking space has a corresponding QR code as a location identifier. Near each parking space, there is a first power supply interface and a second power supply interface. The five first power supply interfaces and five second power supply interfaces are connected to the AC power grid via a power supply device 30. In the power supply device 30, the first power conversion unit 31 is a bidirectional AC / DC conversion unit, and the second power conversion unit 32 is a bidirectional DC / DC conversion unit. The two movable charging piles are designated as charging pile 1 and charging pile 2. The movable charging piles can move autonomously according to a preset program. Users can trigger the charging pile to move to the corresponding location by scanning the QR code of the corresponding parking space. The structure of the portable charging pile is shown in Figures 4 and 5. It consists of a power output interface 13, a first power input interface 11, an energy storage system (not marked in the figures, located inside the charging pile), a second power input interface 14, a sensing device 15, and a moving device 16. The power output interface 13 uses a standard charging interface to provide power from the charging pile to the vehicle. The first power input interface 11 uses a cable and charging head design, allowing manual charging of the charging pile from the grid. The moving device 16 consists of a wheeled moving platform, including a transmission part, a servo motor, a rechargeable battery, and moving wheels 161. The second power input interface 14 is located at the bottom of the moving device 16 and is an automatic docking interface. When the charging pile moves to the corresponding charging position, i.e., the target charging position marker, it can automatically dock with the second power input interface next to the target parking space. Whether the charging pile has moved to the target charging position marker can be identified and determined based on infrared, short-range communication, visual recognition, and other methods. The sensing device 15 can use a sensing system that employs visual, radar, and sonar systems to achieve spatial and environmental perception and realize autonomous navigation and movement.

[0096] When no vehicle is charging, as shown in Figure 6, charging piles 1 and 2 remain in fixed standby positions. Once the vehicle owner parks the vehicle in the target parking space and obtains the parking space information via a QR code on their mobile phone, and generates trigger information based on this information and sends it to the charging pile, charging pile 1 is activated by the trigger signal. It then identifies the target location using the trigger information and automatically moves to the target location marker via sensing device 15 and moving device 16. At this point, the user inserts the first power input interface of charging pile 1 into the target first power input interface, and the second power input interface automatically connects to the target second power input interface. The charging gun of charging pile 1 is then connected to the vehicle's charging port, initiating charging of the vehicle.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A charging system for providing charging services to multiple fixed parking spaces, the system comprising: A charging pile, wherein the charging pile is equipped with a first power input interface and an energy storage device; Multiple first power supply interfaces are provided, and each of the multiple first power supply interfaces is configured to correspond one-to-one with the multiple fixed parking spaces; A power supply device, which is connected to the plurality of first power supply interfaces and a power supply, and is configured to output first charging energy to the plurality of first power supply interfaces based on the power supply. Specifically, when the charging pile moves to the target first power supply interface and the first power supply input interface of the charging pile is connected to the target first power supply interface, or when the first power supply input interface of the charging pile extends to the target first power supply interface and is connected to the target first power supply interface, the charging pile charges the vehicle in the target parking space corresponding to the target first power supply interface based on the first charging energy and / or the second charging energy provided by the energy storage device.

2. The charging system according to claim 1, wherein, The charging pile is also equipped with a second power input interface. The system further includes multiple second power input interfaces, each corresponding to one of the multiple first power input interfaces. The power supply device is also connected to the multiple second power input interfaces and outputs third charging power to the multiple second power input interfaces based on the power supply. When the charging pile moves to the target second power supply interface and the second power supply input interface of the charging pile is connected to the target second power supply interface, or when the second power supply input interface of the charging pile extends to the target second power supply interface and is connected to the target second power supply interface, the charging pile also charges the energy storage device based on the third charging energy; wherein the target second power supply interface corresponds to the target first power supply interface.

3. The charging system according to claim 2, wherein, The power supply device includes: A first power conversion unit, one end of which is connected to the AC power grid; A second power conversion unit, one end of which is connected to the other end of the first power conversion unit, and the other end of which is connected to the plurality of first power supply interfaces and the plurality of second power supply interfaces; wherein, through the first power conversion unit and the second power conversion unit, the first charging energy and the third charging energy are output based on the power energy of the AC power grid.

4. The charging system according to claim 3, wherein, The first power conversion unit is a unidirectional AC-DC conversion unit, and the second power conversion unit is a unidirectional DC-DC conversion unit; or, the first power conversion unit is a bidirectional AC-DC conversion unit, and the second power conversion unit is a bidirectional DC-DC conversion unit.

5. The charging system according to claim 1, wherein, The first power input interface and the first power interface are connected by a plug-in method.

6. The charging system according to claim 5, wherein, One of the first power input interface and the first power interface is a plug, and the other is a socket.

7. The charging system according to claim 2, wherein, The second power input interface and the second power interface are connected by a mating method.

8. The charging system according to claim 7, wherein, The second power input interface and the second power interface are conductive sheets or conductive blocks.

9. The charging system according to claim 2 or 3, wherein, The system also includes: Multiple triggers are provided, each corresponding to one of the multiple fixed parking spaces. The multiple triggers are configured to trigger the charging pile to move to its respective first power supply interface and second power supply interface; or, to trigger the first power supply input interface and second power supply input interface of the charging pile to extend or retract to their respective first power supply interface and second power supply interface.

10. The charging system according to claim 9, wherein, The trigger is a parking space information identifier that includes parking space information. The charging pile is also connected to a terminal device. The terminal device is configured to obtain the parking space information based on the parking space information identifier. The charging pile is also configured to automatically move to the first target power supply interface and the second target power supply interface based on the parking space information of the target parking space sent by the terminal device. Alternatively, the charging pile may be configured to control its first power input interface and second power input interface to extend and retract to the target first power input interface and the target second power input interface based on the parking space information of the target parking space sent by the terminal device.

11. The charging system according to claim 10, wherein, The parking space information is identified by a barcode or QR code.

12. The charging system according to claim 9, wherein, The trigger is a parking space switch, which is connected to the charging pile. The charging pile is also configured to automatically move to the target first power supply interface and the target second power supply interface when the state of the parking space switch corresponding to the target parking space is the target state; or, the charging pile is also configured to control its own first power supply input interface and second power supply input interface to extend and retract to the target first power supply interface and the target second power supply interface when the state of the parking space switch corresponding to the target parking space is the target state.

13. The charging system according to claim 12, wherein, The parking space switch includes at least one of a mechanical switch, a pressure sensor, and an infrared sensor.

14. The charging system according to claim 2 or 3, wherein, The charging pile is also equipped with a sensing device and a moving device. The charging pile is also configured to control the moving device to automatically move to the target first power supply interface and the target second power supply interface based on the surrounding environment information sensed by the sensing device; or, the charging pile is also equipped with a sensing device and a telescopic device. The charging pile is also configured to control the telescopic device to extend and retract the first power supply input interface and the second power supply input interface to the target first power supply interface and the target second power supply interface based on the surrounding environment information sensed by the sensing device.

15. The charging system according to claim 14, wherein, The system also includes: The charging station includes a mobile route marker with multiple charging pile markers, each corresponding to one of the multiple first power supply interfaces. The charging station is also configured to control the mobile device to automatically move to the target charging pile marker corresponding to the target first power supply interface based on surrounding environmental information sensed by the sensing device. Alternatively, the charging station is further configured to control the telescopic device to extend or retract the first power input interface to the target charging pile marker corresponding to the target first power supply interface based on surrounding environmental information sensed by the sensing device.

16. The charging system according to any one of claims 1-8, wherein, The number of charging piles is greater than 1 and less than the number of the plurality of fixed parking spaces.

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