Vehicle charging device and system

Abstract

The utility model provides a vehicle charging device and system, and relates to the technical field of automobiles. The device comprises a server, N power cabinets and M charging terminals in communication connection with each power cabinet, n and M are natural numbers greater than 1; wherein the first power cabinet in the N power cabinets is internally provided with a load management module; the load management module is respectively in communication connection with the server, each second power cabinet except the first power cabinet in the N power cabinets, and each charging terminal in communication connection with each power cabinet; the load management module is configured to obtain power distribution information after receiving a vehicle charging request sent by a charging terminal, and determine a power distribution result according to the power distribution information; wherein the power distribution result is used for determining the charging power distributed to each power cabinet and each charging terminal. According to the vehicle charging device provided by the invention, power distribution can be uniformly carried out on the plurality of power cabinets, the power distribution effect is improved, and the performance of a charging system is further improved.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more particularly to a vehicle charging device and system. Background Technology

[0002] With the increasing popularity of electric vehicles, the design of DC charging systems has become particularly important in order to meet people's needs for fast charging in daily life.

[0003] Generally, in a DC charging system, AC power from the power grid can be converted into DC power by a power cabinet, and the DC power can be distributed to the charging terminals connected to the power cabinet, thereby enabling simultaneous charging of multiple vehicles.

[0004] However, in existing DC charging systems, multiple power cabinets operate independently, causing each cabinet to allocate power independently. This makes it impossible to flexibly allocate the power provided by the grid, resulting in resource waste and affecting the charging performance of the DC charging system. Utility Model Content

[0005] This application provides a vehicle charging device and system to solve the technical problem in the prior art where power is independently allocated among multiple power cabinets, thereby affecting the charging performance of the DC charging system.

[0006] This application provides a vehicle charging device, the device comprising: a server, N power cabinets, and M charging terminals communicatively connected to each power cabinet; N and M are natural numbers greater than 1; wherein, a load management module is provided in the first power cabinet among the N power cabinets; the load management module is communicatively connected to the server, each of the second power cabinets among the N power cabinets excluding the first power cabinet, and each charging terminal communicatively connected to each power cabinet;

[0007] The load management module is configured to, after receiving a vehicle charging request sent by the charging terminal, obtain power allocation information and determine a power allocation result based on the power allocation information; wherein the power allocation result is used to determine the charging power allocated to each of the power cabinets and each of the charging terminals.

[0008] In one possible implementation, each of the power cabinets is further provided with a power control unit; the power control unit is communicatively connected to the load management module and each of the charging terminals communicatively connected to the power cabinet.

[0009] The load management module is further configured to, upon receiving the vehicle charging request, obtain the first allocation information from the server, the second allocation information from the power control unit, and the third allocation information from the charging terminal, and determine the power allocation information based on the first allocation information, the second allocation information, and the third allocation information;

[0010] The power control unit is configured to receive the power allocation result and then allocate power to each of the charging terminals according to the power allocation result.

[0011] In one possible implementation, each of the power cabinets is further provided with a switch; wherein,

[0012] The switch in each of the power cabinets is configured to control the communication connection between the power cabinet and the corresponding charging terminal;

[0013] The switch in the first power cabinet is also configured to communicate with the switches in each of the second power cabinets.

[0014] In one possible implementation, each of the power cabinets is further provided with a power control unit; the switch in each of the power cabinets is configured to control the power control unit in the power cabinet and communicate with the corresponding charging terminal.

[0015] The switch in the first power cabinet is also configured to control the load management module to communicate with the power control unit included in the first power cabinet; and, after communicating with the switch in each of the second power cabinets, to control the load management module to communicate with the power control unit in each of the second power cabinets.

[0016] In one possible implementation, the load management module is further configured to, after determining the power allocation result, send the power allocation result to the power control unit in the first power cabinet via a switch in the first power cabinet, and / or send the power allocation result to a switch in the second power cabinet;

[0017] The switch in the second power cabinet is configured to send the received power allocation result to the power control unit in the second power cabinet.

[0018] In one possible implementation, the power control unit in each power cabinet is configured to allocate charging power to the corresponding charging terminal through the switch after receiving the power allocation result.

[0019] In one possible implementation, a communication module is also provided inside the first power cabinet;

[0020] The communication module is configured to control the communication connection between the server and the load management module.

[0021] In one possible implementation, each of the charging terminals is provided with a charging control unit;

[0022] The charging control unit is configured to generate a vehicle charging request after receiving a vehicle charging instruction, and send the vehicle charging request to the load management module.

[0023] In one possible implementation, it further includes: a power supply; the power supply is communicatively connected to each of the power cabinets to supply power to the vehicle connected to the charging terminal through the power cabinets.

[0024] Secondly, this application provides a vehicle charging system, which includes the vehicle charging device described in any one of the first aspects above.

[0025] The vehicle charging device and system provided in this application can achieve power allocation by setting a load management module in the first power cabinet among multiple power cabinets. This load management module acts as the power distribution management center, communicating with the server, each power cabinet, and each charging terminal. By combining allocation information from multiple sources, it can achieve power allocation, improving not only the accuracy of power allocation but also its flexibility and diversity, thereby optimizing the power allocation effect of the DC charging system and improving its charging performance. Simultaneously, this implementation method avoids each second power cabinet communicating separately with the server, thus reducing hardware costs. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] Figure 1 This application provides a schematic diagram of the architecture of an existing DC power supply system;

[0028] Figure 2 A schematic diagram of the architecture of a vehicle charging device provided in this application embodiment. Figure 1 ;

[0029] Figure 3 A schematic diagram of the architecture of a vehicle charging device provided in this application embodiment. Figure 2 ;

[0030] Figure 4 A schematic diagram of the architecture of a vehicle charging device provided in this application embodiment. Figure 3 ;

[0031] Figure 5A schematic diagram of the architecture of a vehicle charging device provided in this application embodiment. Figure 4 .

[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0034] In this document, the term "and / or" merely describes a relationship, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0035] First, the technical terms used in this application will be explained.

[0036] Power cabinet: refers to the physical facility that stores electrical equipment and manages the power system;

[0037] Charging terminal: refers to the physical facilities that provide charging for electric vehicles;

[0038] Power Management Unit (PMU) is a microcontroller chip used to control and manage power modules. It mainly implements functions such as power distribution management, control of power module output power, over / under voltage protection, overcurrent protection, reverse connection protection, insulation monitoring, adhesion monitoring, over-temperature protection, surge protection, water immersion protection, access control protection, and smoke protection.

[0039] Charging Control Unit (CCU) is a single-chip microcomputer used to control and manage charging terminals. Its main functions include interacting with the vehicle, insulation detection, obtaining electricity meter readings, charging management, over-temperature protection, thermal management, obtaining RFID card swipe information, obtaining POS machine card swipe information, obtaining charging gun temperature, and detecting voltage and current.

[0040] Power Control Unit (PCU) is a single-chip microcontroller used to control the output power of power modules and provide functions such as over / under voltage protection, overcurrent protection, reverse connection protection, insulation monitoring, adhesion monitoring, over-temperature protection, surge protection, water immersion protection, access control protection, and smoke protection.

[0041] The load management module is a microcontroller chip mainly used to implement functions such as power distribution management, intranet communication, interaction with cloud platforms, firmware upgrades, and fault diagnosis.

[0042] In a DC charging system, AC power from the power grid can be converted into DC power by a power cabinet, and the DC power can be distributed to the various charging terminals connected to the power cabinet, thereby enabling simultaneous charging of multiple vehicles.

[0043] However, in existing DC charging systems, multiple power cabinets operate independently, causing each cabinet to allocate power independently. This makes it impossible to flexibly allocate the power provided by the grid, resulting in resource waste and affecting the charging performance of the DC charging system.

[0044] For example, see Figure 1 , Figure 1 This application provides a schematic diagram of the architecture of an existing DC power supply system, such as... Figure 1 As shown, the DC power supply system includes two power cabinets, namely power cabinet 1 and power cabinet 2. Each power cabinet can connect to two charging terminals, namely charging terminal 1, charging terminal 2, charging terminal 3, and charging terminal 4. Both power cabinet 1 and power cabinet 2 include a power management unit and a communication module.

[0045] At this point, assuming that charging requests from charging terminal 1 and charging terminal 3 are received, the power management unit in power cabinet 1 can communicate with the cloud platform and charging terminal 1 respectively via the communication module to allocate charging power to charging terminal 1, thereby charging the vehicle 1 connected to charging terminal 1. Simultaneously, the power management unit in power cabinet 2 can communicate with the cloud platform and charging terminal 3 respectively via the communication module to allocate charging power to charging terminal 3, thereby charging the vehicle 2 connected to charging terminal 3.

[0046] In this implementation, the two power cabinets operate independently, each managing its own power allocation, thus making it impossible to achieve optimal power allocation.

[0047] The vehicle charging device provided in this application aims to solve the above-mentioned technical problems by setting a load management model in the first power cabinet among N power cabinets and realizing communication between the first power cabinet and other power cabinets among the N power cabinets except the first power cabinet through Ethernet, so as to realize unified control and management of the charging power of each power cabinet based on the load management model in the first power cabinet.

[0048] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0049] See Figure 2 , Figure 2 A schematic diagram of the architecture of a vehicle charging device provided in this application embodiment. Figure 1 ,like Figure 2 As shown, the vehicle charging device includes: a server 201, N power cabinets 202, and M charging terminals 203 that are communicatively connected to each power cabinet; N and M are natural numbers greater than 1.

[0050] In one example, the server can be understood as one end that provides power allocation strategies for the power grid. For example, the server can be a cloud platform or an energy management system, etc. There is no limitation on the type of server here.

[0051] In one example, the power cabinet can be a split power cabinet or an integrated power cabinet, etc. There is no limitation on the type of power cabinet here.

[0052] Among them, the first power cabinet in the N power cabinets 202 is equipped with a load management module 204; the load management module 204 is connected to the server 201, each of the second power cabinets in the N power cabinets except the first power cabinet, and each charging terminal 203 connected to each power cabinet.

[0053] In one example, the load management module 204 can directly communicate with each charging terminal 203 connected to the first power cabinet, and can also communicate with each charging terminal 203 connected to each second power cabinet through communication connection.

[0054] At this time, the load management module 204 is configured to obtain power allocation information after receiving a vehicle charging request sent by the charging terminal, and determine the power allocation result based on the power allocation information; wherein, the power allocation result is used to determine the charging power allocated to each power cabinet and each charging terminal.

[0055] In one example, the acquired power allocation information may include the power grid power allocation information corresponding to the server (i.e., the first allocation information below), the power cabinet power allocation information corresponding to the power cabinet (i.e., the second allocation information below), and the vehicle power limit information corresponding to the charging terminal (i.e., the third allocation information below), etc. At this time, the corresponding charging power can be allocated to the charging terminal according to the power allocation information to charge the vehicle.

[0056] As described above, the vehicle charging device provided in this application embodiment can achieve power allocation by setting a load management module in the first power cabinet among multiple power cabinets and using this load management module as the power distribution management center. This module communicates with the server, each power cabinet, and each charging terminal to combine allocation information from multiple aspects. This not only improves the accuracy of power allocation but also enhances its flexibility and diversity, thereby optimizing the power allocation effect of the DC charging system and improving its charging performance. Furthermore, this implementation method avoids each second power cabinet communicating separately with the server, thus reducing hardware costs.

[0057] See Figure 3 , Figure 3 A schematic diagram of the architecture of a vehicle charging device provided in this application embodiment. Figure 2 ,like Figure 3 As shown, the vehicle charging device includes: a server 301, N power cabinets 302, and M charging terminals 303 that are communicatively connected to each power cabinet; N and M are natural numbers greater than 1.

[0058] Among them, the first power cabinet in the N power cabinets is equipped with a load management module 304; the load management module 304 is communicatively connected to the server 301, each of the second power cabinets in the N power cabinets except the first power cabinet, and each charging terminal 303 that is communicatively connected to each power cabinet.

[0059] like Figure 3 As shown, each power cabinet is also equipped with a power control unit 305; the power control unit 305 is communicatively connected to each charging terminal 303 that is communicatively connected to the load management module 304 and the power cabinet respectively.

[0060] At this time, the load management module 304 is also configured to, after receiving a vehicle charging request, obtain the first allocation information from the server, the second allocation information from the power control unit, and the third allocation information from the charging terminal, and determine the power allocation information based on the first allocation information, the second allocation information, and the third allocation information.

[0061] Then, based on the power allocation information, the power allocation result is determined; the power allocation result is used to determine the charging power allocated to each power cabinet and each charging terminal.

[0062] At this time, the power control unit 305 is configured to receive the power allocation result and then allocate power to each charging terminal according to the power allocation result.

[0063] This implementation allows the load management module to determine power allocation information and the power control unit to allocate power, thereby reusing the power allocation function of the power control unit, reducing the processing workload of the load management module, and thus improving the processing efficiency of the load management module.

[0064] Furthermore, the aforementioned vehicle charging device can communicate via Ethernet to achieve data transmission. Based on this, a switch can also be installed within the power cabinet to ensure network communication performance.

[0065] See Figure 4 , Figure 4 A schematic diagram of the architecture of a vehicle charging device provided in this application embodiment. Figure 3 ,like Figure 4 As shown, the vehicle charging device includes: a server 401, N power cabinets 402, and M charging terminals 403 communicatively connected to each power cabinet; N and M are natural numbers greater than 1. The first power cabinet among the N power cabinets is equipped with a load management module 404; the load management module 404 is communicatively connected to the server 401, each of the second power cabinets (excluding the first power cabinet) among the N power cabinets, and each charging terminal 403 communicatively connected to each power cabinet. Each power cabinet is also equipped with a power control unit 405; the power control unit 405 is communicatively connected to each charging terminal 403 communicatively connected to the load management module 404 and the power cabinet.

[0066] like Figure 4 As shown, each power cabinet is also equipped with a switch 406; wherein, the switch 406 in each power cabinet is configured to control the power cabinet to communicate with the corresponding charging terminals 403; the switch in the first power cabinet is also configured to communicate with the switches in each second power cabinet.

[0067] At this point, considering the power control unit installed in each power cabinet, such as Figure 4 As shown, the switch in each power cabinet is configured to control the power control unit 405 in the power cabinet and communicate with the corresponding charging terminal 403, thereby realizing the communication connection between the power cabinet and each charging terminal.

[0068] The switch 406 in the first power cabinet is also configured to control the load management module 404 to communicate with the power control unit 405 included in the first power cabinet; and after communicating with the switch 406 in each of the second power cabinets, control the load management module 404 to communicate with the power control unit 405 in each of the second power cabinets, thereby realizing the communication connection between the load management module 404 and each power control unit 405.

[0069] At this time, the load management module 404 is also configured to, after determining the power allocation result, send the power allocation result to the power control unit 405 in the first power cabinet through the switch 406 in the first power cabinet, and / or send the power allocation result to the switch 406 in the second power cabinet.

[0070] The switch 406 in the second power cabinet is configured to send the received power allocation results to the power control unit in the second power cabinet.

[0071] At this time, the power control unit in each power cabinet is configured to allocate charging power to the corresponding charging terminal through the switch after receiving the power allocation result.

[0072] In the above embodiments, communication connections can be established via Ethernet and switches, which not only enables convenient, fast, and stable communication connections between different power cabinets and reduces communication costs, but also improves the flexibility and scalability of the DC charging system, thereby making the DC charging system more widely applicable.

[0073] Optionally, such as Figure 4 As shown, a communication module 407 may also be installed in the first power cabinet; in this case, the communication module 407 is configured to communicate between the control server and the load management module. Optionally, the communication module can be a hardware component under any communication standard, for example, the communication module can be a 4G module, a 5G module, etc.

[0074] In one optional implementation, each charging terminal involved in any of the above embodiments may be provided with a charging control unit; in this case, the charging control unit is configured to generate a vehicle charging request after receiving a vehicle charging instruction, and send the vehicle charging request to the load management module.

[0075] See Figure 5 , Figure 5 A schematic diagram of the architecture of a vehicle charging device provided in this application embodiment. Figure 4 ,like Figure 5As shown, the vehicle charging device includes: a server 501, N power cabinets 502, and M charging terminals 503 communicatively connected to each power cabinet; N and M are natural numbers greater than 1. The first power cabinet among the N power cabinets is equipped with a load management module 504; the load management module 504 is communicatively connected to the server 501, each of the second power cabinets (excluding the first power cabinet), and each charging terminal 503 communicatively connected to each power cabinet. Each power cabinet is also equipped with a power control unit 505; the power control unit 505 is communicatively connected to each charging terminal 503 communicatively connected to the load management module 504 and the power cabinet. Each power cabinet is also equipped with a switch 506; the switch 506 in each power cabinet is configured to control the communication connection between the power cabinet and the corresponding charging terminal 503; the switch in the first power cabinet is also configured to communicate with the switches in each of the second power cabinets. The first power cabinet may also be equipped with a communication module 507, which is configured to communicate between the control server and the load management module.

[0076] like Figure 5 As shown, each charging terminal may be equipped with a charging control unit 508. In this case, the charging control unit 508 can receive the vehicle charging command corresponding to the charging vehicle connected to the charging terminal.

[0077] In one example, the vehicle charging instruction can be an instruction initiated based on the charging card swipe information, or it can be an instruction initiated based on an application, mini-program, etc., which will not be elaborated on here.

[0078] At this time, after receiving the vehicle charging command corresponding to the charging vehicle connected to the charging terminal, the charging control unit 508 can send the vehicle charging command to the load management module 504 through the switch 506. Upon receiving the vehicle charging command, the load management module 504 can obtain first allocation information from the server through the communication module, second allocation information from the power cabinet through the switch 506, and third allocation information from the charging terminal through the switch, thereby determining the power allocation result. Then, the power allocation result can be sent to the power control unit 505 in the corresponding power cabinet through the switch 506, so that the power control unit 505 can allocate the corresponding charging power to each charging terminal via the switch 506.

[0079] In this implementation, the charging control unit can be used to control and manage the charging terminal, such as obtaining vehicle charging commands and interacting with the vehicle. At the same time, the charging control unit can also be used to perform charging management, insulation detection, obtain meter power, over-temperature protection, thermal management, obtain charging gun temperature, and detect voltage and current. This not only enables effective management of the charging terminal but also makes the charging terminal more flexible and scalable.

[0080] Optionally, the vehicle charging device in any of the above embodiments may further include: a power supply; the power supply is communicatively connected to each power cabinet to supply power to the vehicle connected to the charging terminal through the power cabinet.

[0081] This application also provides a vehicle charging system, which may include any of the vehicle charging devices described above.

[0082] In the description of this application, it should be understood that the terms "length", "width", "thickness", "upper", "inner", "outer", etc., 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 this application and simplifying the description, and do not 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 this application.

[0083] 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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. In this application, unless otherwise expressly specified and limited, the terms "installation," "fastening," "connection," "fixing," etc., should be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral part; they may refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they may refer to a direct connection or an indirect connection through an intermediate medium; they may refer to the internal communication of two elements or the interaction between two elements, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0084] In this specification, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples.

[0085] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0086] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A vehicle charging device, characterized in that, The device includes: a server, N power cabinets, and M charging terminals that are communicatively connected to each power cabinet; N and M are natural numbers greater than 1; wherein, a load management module is provided in the first power cabinet among the N power cabinets; the load management module is communicatively connected to the server, each of the second power cabinets among the N power cabinets excluding the first power cabinet, and each charging terminal that is communicatively connected to each power cabinet. The load management module is configured to, after receiving a vehicle charging request sent by the charging terminal, obtain power allocation information and determine a power allocation result based on the power allocation information; wherein the power allocation result is used to determine the charging power allocated to each of the power cabinets and each of the charging terminals.

2. The apparatus according to claim 1, characterized in that, Each of the power cabinets is also equipped with a power control unit; the power control unit is communicatively connected to the load management module and each of the charging terminals that are communicatively connected to the power cabinet; The load management module is further configured to, upon receiving the vehicle charging request, obtain the first allocation information from the server, the second allocation information from the power control unit, and the third allocation information from the charging terminal, and determine the power allocation information based on the first allocation information, the second allocation information, and the third allocation information; The power control unit is configured to receive the power allocation result and then allocate power to each of the charging terminals according to the power allocation result.

3. The apparatus according to claim 1, characterized in that, Each of the aforementioned power cabinets is also equipped with a switch; among which... The switch in each of the power cabinets is configured to control the communication connection between the power cabinet and the corresponding charging terminal; The switch in the first power cabinet is also configured to communicate with the switches in each of the second power cabinets.

4. The apparatus according to claim 3, characterized in that, Each of the power cabinets is also equipped with a power control unit; the switch in each of the power cabinets is configured to control the power control unit in the power cabinet and communicate with the corresponding charging terminals. The switch in the first power cabinet is also configured to control the load management module to communicate with the power control unit included in the first power cabinet; and, after communicating with the switch in each of the second power cabinets, to control the load management module to communicate with the power control unit in each of the second power cabinets.

5. The apparatus according to claim 4, characterized in that, The load management module is further configured to, after determining the power allocation result, send the power allocation result to the power control unit in the first power cabinet through the switch in the first power cabinet, and / or send the power allocation result to the switch in the second power cabinet; The switch in the second power cabinet is configured to send the received power allocation result to the power control unit in the second power cabinet.

6. The apparatus according to claim 5, characterized in that, The power control unit in each power cabinet is configured to allocate charging power to the corresponding charging terminal through the switch after receiving the power allocation result.

7. The apparatus according to claim 1, characterized in that, The first power cabinet is also equipped with a communication module; The communication module is configured to control the communication connection between the server and the load management module.

8. The apparatus according to any one of claims 1-7, characterized in that, Each of the charging terminals is equipped with a charging control unit; The charging control unit is configured to generate a vehicle charging request after receiving a vehicle charging instruction, and send the vehicle charging request to the load management module.

9. The apparatus according to any one of claims 1-7, characterized in that, Also includes: Power supply; The power supply is communicatively connected to each of the power cabinets to supply power to the vehicles connected to the charging terminal through the power cabinets.

10. A vehicle charging system, characterized in that, The vehicle charging system includes the vehicle charging device according to any one of claims 1-9.

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