Battery swap station charging unit and battery swap station charging system

Abstract

The utility model discloses a battery swap station charging unit and a battery swap station charging system. The battery swap station charging unit and the battery swap station charging system are used for building a modular battery swap station charging scheme. The charging unit comprises a diagnosis board, an in-cabin charging board, an out-of-station charging board and power supply equipment. The power supply equipment is connected with the diagnosis board, the in-cabin charging board and the out-of-station charging board; the diagnosis board is connected with the in-cabin charging board and the out-of-station charging board through a CAN bus, and is connected with the battery pack through a CANFD bus. The in-cabin charging panel is connected with the battery pack through a CAN bus; the off-station charging panel is connected with the charging terminal through a CAN bus. The power supply equipment is used for supplying power to the diagnosis board, the in-cabin charging board and the out-of-station charging board; the diagnosis board is used for obtaining battery data from the battery pack, sending charging demand data to the in-bin charging board and / or the out-of-station charging board, and obtaining charging data sent by the in-bin charging board and / or the out-of-station charging board; the in-bin charging panel is used for charging the battery pack according to the charging demand data; and the off-station charging panel is used for supplying power to the charging terminal according to the charging demand data.

Description

Technical Field

[0001] This application relates to the field of electric vehicle battery swapping equipment, and particularly to a charging unit and a charging system for a battery swapping station. Background Art

[0002] With the booming development of the new energy vehicle industry, the battery swapping efficiency of electric vehicles has become increasingly important, and the construction of battery swapping infrastructure such as battery swapping stations has been vigorously promoted. A battery swapping station can charge the battery pack of an electric vehicle, enabling users to remove the discharged battery pack from the vehicle and place it in the battery swapping station for charging, and then take a fully charged battery pack from the battery swapping station and install it in the vehicle to improve the charging efficiency of the vehicle.

[0003] As the number of battery swapping stations increases, the charging schemes formulated by different suppliers vary. It is understood that the charging schemes on the market currently have complex circuits and unclear function definitions among individual sub-modules. Utility Model Content

[0004] In view of this, the embodiments of this application provide a charging unit and a charging system for a battery swapping station, and build a modular charging scheme for the battery swapping station.

[0005] To solve the above problems, the technical solutions provided by the embodiments of this application are as follows:

[0006] A charging unit for a battery swapping station, the charging unit includes:

[0007] A diagnostic board, an in-station charging board, an out-station charging board, and a power supply device; the power supply device is connected to the diagnostic board, the in-station charging board, and the out-station charging board; the diagnostic board is connected to the in-station charging board and the out-station charging board through a CAN bus; the diagnostic board is connected to the battery pack through a CANFD bus; the in-station charging board is connected to the battery pack through a CAN bus; the out-station charging board is connected to a charging terminal through a CAN bus;

[0008] The power supply device is configured to supply power to the diagnostic board, the in-station charging board, and the out-station charging board;

[0009] The diagnostic board is configured to obtain battery data from the battery pack, send charging requirement data to the in-station charging board and / or the out-station charging board, and obtain charging data sent by the in-station charging board and / or the out-station charging board;

[0010] The in-station charging board is configured to charge the battery pack according to the charging requirement data and send the charging data of the battery pack to the diagnostic board;

[0011] The off-station charging board is used to supply power to the charging terminal according to the charging demand data and send the charging data of the charging terminal to the diagnostic board.

[0012] In a possible implementation manner, the charging unit further includes:

[0013] A power unit, and the power unit is connected to the in-warehouse charging board through a CAN bus;

[0014] The power unit is used to receive charging demand data from the in-warehouse charging board and perform power distribution to start the in-warehouse charging board to charge the battery pack.

[0015] In a possible implementation manner, the diagnostic board is connected to the station control system through Ethernet.

[0016] In a possible implementation manner, the diagnostic board is further used to receive charging demand data from the station control system.

[0017] In a possible implementation manner, the diagnostic board is further used to receive software update data from the station control system; and update the battery pack according to the software update data.

[0018] In a possible implementation manner, the diagnostic board is further used to upload the battery data of the battery pack to the station control system, and upload the charging data sent by the in-warehouse charging board and / or the off-station charging board to the station control system.

[0019] A charging system for a battery swapping station, and the charging system includes:

[0020] At least one charging unit, and the charging unit is the above-mentioned charging unit for a battery swapping station.

[0021] In a possible implementation manner, the charging system further includes:

[0022] A station control system, and the charging unit is connected to the station control system through Ethernet;

[0023] The station control system is used to send charging demand data and / or software update data to the charging unit, and receive the battery data and charging data sent by the charging unit.

[0024] In a possible implementation manner, the charging system further includes:

[0025] A switch; the charging unit is connected to the switch through Ethernet, and the switch is connected to the station control system through Ethernet.

[0026] In a possible implementation manner, the station control system is further connected to a cloud platform;

[0027] The station control system is further configured to receive charging demand data and / or software update data from the cloud platform, and send battery data and charging data to the cloud platform.

[0028] Therefore, the embodiments of the present application have the following beneficial effects:

[0029] In the embodiments of the present application, the charging unit of the battery swapping station includes a diagnostic board, an in-station charging board, an out-station charging board, and a power supply device. The diagnostic board can obtain battery data of the battery pack and charging data generated during the charging process, and can also send charging demand data to the in-station charging board and / or the out-station charging board. The in-station charging board can charge the battery pack according to the charging demand data, and send the charging data of the battery pack to the diagnostic board. The out-station charging board can supply power to the charging terminal according to the charging demand data, and send the charging data of the charging terminal to the diagnostic board. The embodiments of the present application clarify the definitions of the functions between each module, build a modular charging solution for the battery swapping station, and optimize the circuit layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of a charging unit of a battery swapping station provided by an embodiment of the present application;

[0031] Figure 2 It is another schematic diagram of a charging unit of a battery swapping station provided by an embodiment of the present application;

[0032] Figure 3 It is a detailed topology diagram of a charging unit of a battery swapping station provided by an embodiment of the present application;

[0033] Figure 4 It is a schematic diagram of a charging system of a battery swapping station provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to make the above objects, features, and advantages of the embodiments of the present application more obvious and understandable, the embodiments of the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0035] In order to facilitate the understanding and interpretation of the technical solutions provided by the embodiments of the present application, the background technology of the embodiments of the present application will be described first.

[0036] The battery swapping station can charge the battery pack of an electric vehicle. During the operation of the battery swapping equipment (such as the charging board) in the battery swapping station, the signal interaction with the battery pack is also a very important key link. As there are more and more battery swapping stations, the charging schemes formulated by different charging board suppliers are also different. It is understood that the charging scheme lines on the market are complex at present, and the function definitions between each sub-module are not clear. In addition, the battery pack generally contains the private data of an enterprise. For the existing technology solutions, the relevant private protocols need to be released to different charging board suppliers for development, resulting in a reduction in security.

[0037] Based on this, the embodiments of the present application provide a charging unit for a battery swapping station and a charging system for a battery swapping station, which formulate the electrical network of the overall charging scheme inside the battery swapping station, clarify the function definitions between each module, can build a platform-based scheme for each module, and optimize the circuit layout. In addition, the embodiments of the present application separate the private data function from the charging board, which not only reduces the development difficulty of different charging board suppliers, but also effectively protects the privacy of battery data and improves security.

[0038] To facilitate the understanding of the embodiments of the present application, a charging unit for a battery swapping station provided by the embodiments of the present application will be described below with reference to the accompanying drawings.

[0039] See Figure 1 As shown, this figure is a schematic diagram of a charging unit for a battery swapping station provided by the embodiments of the present application. As Figure 1 shown, the charging unit for the battery swapping station may include:

[0040] A diagnostic board 101, an in-battery charging board 102, an out-of-station charging board 103, and a power supply device 104.

[0041] Among them, the power supply device 104 is connected to the diagnostic board 101, the in-battery charging board 102, and the out-of-station charging board 103; the diagnostic board 101 is connected to the in-battery charging board 102 and the out-of-station charging board 103 through a CAN (Controller Area Network) bus; the diagnostic board 101 is connected to the battery pack through a CANFD (CAN with Flexible Data Rate) bus; the in-battery charging board 102 is connected to the battery pack through a CAN bus; the out-of-station charging board 103 is connected to the charging terminal through a CAN bus.

[0042] The power supply device 104 is used to supply power to the diagnostic board 101, the in-battery charging board 102, and the out-of-station charging board 103.

[0043] Diagnostic board 101 is used to obtain battery data from the battery pack, send the charging demand data to the in-battery charging board 102 and / or the out-station charging board 103, and obtain the charging data sent by the in-battery charging board 102 and / or the out-station charging board 103.

[0044] In-battery charging board 102 is used to charge the battery pack according to the charging demand data and send the charging data of the battery pack to the diagnostic board 101.

[0045] Out-station charging board 103 is used to supply power to the charging terminal according to the charging demand data and send the charging data of the charging terminal to the diagnostic board 101.

[0046] In an embodiment of the present application, the diagnostic board 101 is connected to the in-battery charging board 102 and the out-station charging board 103 through a CAN (Controller Area Network) bus. The CAN bus is a serial communication protocol bus for real-time applications. It can use twisted pairs to transmit signals and is one of the most widely used field buses. The diagnostic board 101 is connected to the battery pack through a CAN FD bus. The CAN FD bus is a variant of the CAN bus and is generally used to transmit private data. The diagnostic board receives the battery data of the battery pack through the CAN FD bus, which can effectively protect the privacy of the battery data.

[0047] The power supply device 104 can supply power to the diagnostic board 101, the in-battery charging board 102, and the out-station charging board 103 through a power cord.

[0048] The main functions of the diagnostic board 101 include obtaining battery data from the battery pack, sending the charging demand data issued by the station control system to the in-battery charging board 102 and / or the out-station charging board 103, and also obtaining the charging-related charging data generated during the charging process sent by the in-battery charging board 102 and / or the out-station charging board 103.

[0049] The in-battery charging board 102 can be connected to at least one battery pack, and the battery pack is the battery pack that needs to be charged in the battery swapping station. The embodiment of the present application does not limit the number of battery packs connected to a single in-battery charging board. The in-battery charging board 102 can charge the battery pack and also send the charging data of the battery pack to the diagnostic board.

[0050] The out-station charging board 103 can supply power to the charging terminal according to the charging demand data and also send the charging data of the charging terminal to the diagnostic board. The charging terminal generally refers to an out-station charging pile for charging electric vehicles, so that the battery swapping station has the function of a charging station.

[0051] In the embodiments of the present application, the charging unit of the battery swapping station includes a diagnostic board, an in-station charging board, an out-station charging board, and a power supply device. The diagnostic board can obtain the battery data of the battery pack and the charging data generated during the charging process, and can also send the charging requirement data to the in-station charging board and / or the out-station charging board. The in-station charging board can charge the battery pack according to the charging requirement data, and send the charging data of the battery pack to the diagnostic board. The out-station charging board can supply power to the charging terminal according to the charging requirement data, and send the charging data of the charging terminal to the diagnostic board. The embodiments of the present application clarify the definition of the functions between each module, build a modular charging solution for the battery swapping station, and optimize the circuit layout. In addition, the embodiments of the present application separate the private data function from the charging board, which not only reduces the development difficulty of different charging board suppliers, but also effectively protects the privacy of the battery data and improves the security.

[0052] See Figure 2 As shown in the figure, this figure is a schematic diagram of another charging unit of the battery swapping station provided by the embodiments of the present application. In a possible implementation, the charging unit further includes:

[0053] A power unit 105, and the power unit 105 is connected to the in-station charging board 102 through a CAN bus.

[0054] The power unit 105 is configured to receive the charging requirement data from the in-station charging board 102, and perform power distribution to start the in-station charging board 102 to charge the battery pack.

[0055] The power unit 105 can respond to the regulation of the in-station charging board 102 to charge the battery pack orderly. Specifically, after receiving the charging requirement data, the in-station charging board 102 can control the power unit 105 to perform actual power distribution to start charging the battery pack.

[0056] In a possible implementation, the diagnostic board 101 can be connected to the station control system through Ethernet.

[0057] In a possible implementation, the diagnostic board 101 is further configured to upload the battery data of the battery pack to the station control system, and upload the charging data sent by the in-station charging board and / or the out-station charging board to the station control system.

[0058] In a possible implementation, the diagnostic board 101 is further configured to receive the charging requirement data from the station control system.

[0059] In a possible implementation, the diagnostic board 101 is further configured to receive software update data from the station control system; update the battery pack according to the software update data.

[0060] The station control system can be understood as the control system of the charging unit, which can send charging requirement data to the diagnostic board according to specific charging scenarios. In practical applications, the station control system can receive the battery data of the battery pack from the diagnostic board through Ethernet, and can also receive the charging data of the battery pack from the diagnostic board through Ethernet. It diagnoses the battery pack based on the battery data and / or charging data of the battery pack for battery pack management and refresh. In one scenario, if the battery pack needs to be charged, it can send charging requirement data to the diagnostic board. In another scenario, if the battery pack needs to be upgraded, it can send software update data to the diagnostic board. Thus, the diagnostic board can receive charging requirement data from the station control system, or receive software update data from the station control system; and control the battery pack to perform software update according to the software update data. Similarly, the station control system can also send charging requirement data for the off-station charging board to the diagnostic board and obtain the charging data of the charging terminal from the diagnostic board.

[0061] It can be understood that the functions of the station control system can be existing functions, and the embodiments of the present application do not limit the specific manner of diagnosing the battery pack based on the battery data and / or charging data.

[0062] The diagnostic board in the embodiments of the present application can also communicate with the station control system to realize the regulation of the charging unit by the station control system.

[0063] See Figure 3 As shown, it shows the detailed topology diagram of the charging unit of the battery swapping station provided by the embodiments of the present application. In practical applications, the diagnostic board obtains battery data from the battery pack through private CAN communication. The diagnostic board interacts with the in-warehouse charging board and the out-warehouse charging board through CAN communication. The in-warehouse charging board interacts with the battery pack through CAN communication. The out-warehouse charging board interacts with the charging terminal through CAN communication. At the same time, the out-warehouse charging board can provide power for the charging terminal. At the same time, different switching power supplies can be used to supply power to the diagnostic board, the in-warehouse charging board, and the out-warehouse charging board.

[0064] The charging unit line layout of the battery swapping station provided by the embodiments of the present application is simple, easy to implement, and can ensure the privacy of battery data.

[0065] Based on the charging unit of the battery swapping station provided in the above embodiments, the embodiments of the present application also provide a charging system for the battery swapping station. In this charging system for the battery swapping station, it can include at least one charging unit, and the charging unit is the charging unit of the battery swapping station provided in the above embodiments. For the relevant descriptions of the charging unit of the battery swapping station, reference can be made to the above embodiments and will not be elaborated here.

[0066] See Figure 4 As shown, this figure is the structural schematic diagram of a charging system for a battery swapping station provided by the embodiments of the present application.

[0067] In a possible implementation, the charging system may further include:

[0068] A station control system, and the charging unit is connected to the station control system via Ethernet.

[0069] The station control system is configured to send charging demand data and / or software update data to the charging unit, and receive battery data and charging data sent by the charging unit.

[0070] In practical applications, the station control system can receive the battery data of the battery pack and the charging data of the battery pack from the diagnostic board of the charging unit via Ethernet, and diagnose the battery pack based on the battery data and / or charging data of the battery pack. In one scenario, if the battery pack needs to be charged, charging demand data can be sent to the diagnostic board of the charging unit. In another scenario, if the battery pack needs to be upgraded, software update data can be sent to the diagnostic board of the charging unit. Similarly, the station control system can also send charging demand data for off-station charging boards to the diagnostic board of the charging unit, and obtain the charging data of the charging terminal sent by the diagnostic board of the charging unit.

[0071] In a possible implementation, the charging system may further include:

[0072] A switch; the charging unit is connected to the switch via Ethernet, and the switch is connected to the station control system via Ethernet.

[0073] Since there can be multiple charging units in the charging system, in order to facilitate the connection between multiple charging units and the station control system, in practical applications, the charging units can be connected to the station control system through a switch.

[0074] In a possible implementation, the station control system may also be connected to a cloud platform.

[0075] The station control system is further configured to receive charging demand data and / or software update data from the cloud platform, and send the battery data and charging data to the cloud platform.

[0076] In the embodiments of the present application, the functions of the station control system can also be implemented by the cloud platform. Then, the station control system can send the battery data and charging data to the cloud platform, and can also receive charging demand data and / or software update data from the cloud platform.

[0077] In the embodiments of the present application, the charging unit of the battery swapping station can communicate with the station control system, so as to implement a complete battery swapping station charging solution, making it more convenient.

[0078] It should be noted that the embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the replacement station charging system disclosed in the embodiments, since it corresponds to the replacement station charging unit disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description of the replacement station charging unit section.

[0079] It should be understood that in this application, "at least one (item)" means one or more, and "a plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: only A exists, only B exists, and both A and B exist at the same time. Among them, A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after. "At least one (one) of the following" or its similar expression refers to any combination of these items, including any combination of single item (one) or plural items (ones). For example, at least one (one) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a, b, and c", where a, b, and c can be single or multiple.

[0080] It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0081] The above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A charging unit for a battery swapping station, characterized in that, The charging unit includes: A diagnostic board, an in - warehouse charging board, an out - of - station charging board, and a power supply device; the power supply device is connected to the diagnostic board, the in - warehouse charging board, and the out - of - station charging board; the diagnostic board is connected to the in - warehouse charging board and the out - of - station charging board through a CAN bus; the diagnostic board is connected to the battery pack through a CANFD bus; the in - warehouse charging board is connected to the battery pack through a CAN bus; the out - of - station charging board is connected to the charging terminal through a CAN bus; The power supply device is used to supply power to the diagnostic board, the in - warehouse charging board, and the out - of - station charging board; The diagnostic board is used to obtain battery data from the battery pack, send charging requirement data to the in - warehouse charging board and / or the out - of - station charging board, and obtain charging data sent by the in - warehouse charging board and / or the out - of - station charging board; The in - warehouse charging board is used to charge the battery pack according to the charging requirement data and send the charging data of the battery pack to the diagnostic board; The out - of - station charging board is used to supply power to the charging terminal according to the charging requirement data and send the charging data of the charging terminal to the diagnostic board.

2. The charging unit according to claim 1, wherein The charging unit further includes: A power unit, the power unit is connected to the in - warehouse charging board through a CAN bus; The power unit is used to receive charging requirement data from the in - warehouse charging board and perform power distribution to start the in - warehouse charging board to charge the battery pack.

3. The charging unit according to claim 1, characterized in that, The diagnostic board is connected to the station control system through Ethernet.

4. The charging unit according to claim 3, characterized in that, The diagnostic board is further used to receive charging requirement data from the station control system.

5. The charging unit according to claim 3, characterized in that, The diagnostic board is further used to receive software update data from the station control system; update the battery pack according to the software update data.

6. The charging unit according to claim 3, characterized in that, The diagnostic board is further used to upload the battery data of the battery pack to the station control system and upload the charging data sent by the in - warehouse charging board and / or the out - of - station charging board to the station control system.

7. A charging system for a battery swapping station, characterized in that, The charging system includes: At least one charging unit, and the charging unit is the charging unit of the battery swapping station as described in any one of claims 1 - 6.

8. The charging system according to claim 7, wherein The charging system further includes: A station control system, the charging unit is connected to the station control system through Ethernet; The station control system is used to send charging requirement data and / or software update data to the charging unit and receive the battery data and charging data sent by the charging unit.

9. The charging system according to claim 8, wherein The charging system further includes: A switch; the charging unit is connected to the switch through Ethernet, and the switch is connected to the station control system through Ethernet.

10. The charging system according to claim 8 or 9, characterized in that, The station control system is further connected to the cloud platform; The station control system is further used to receive charging requirement data and / or software update data from the cloud platform and send the battery data and charging data to the cloud platform.

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