Battery swapping system and battery charging method for battery swapping station

Abstract

A battery swapping system and a battery charging method for a battery swapping station. The battery swapping system for a battery swapping station comprises: multiple charging devices (20, 201), multiple battery compartments (30, 202), and multiple switch matrices (50). Each of the charging devices (20, 201) comprises a bidirectional power supply module, wherein the bidirectional power supply module has: a first port connected to a power grid and configured to convert an alternating current of the power grid into a direct-current voltage, and a second port connected to a corresponding battery compartment (30, 202) by means of a corresponding switch matrix (50) and configured to convert a direct-current voltage of a battery in the battery compartment (30, 202) into an alternating-current voltage of the power grid. The switch matrices (50) are connected between the charging devices (20, 201) and the battery compartments (30, 202), and configured to switch the connection relationships between the multiple charging devices (20, 201) and the multiple battery compartments (30, 202), allowing a target charging device (20, 201) meeting battery charging requirements to charge a battery in a target battery compartment (30, 202), the target charging device (20, 201) being a charging device (20, 201) in an uncharged state.

Description

Battery swapping station system and battery charging method at battery swapping stations Cross-reference to related applications

[0001] This application claims priority to Chinese Patent Application No. 202411175798.3, filed on August 26, 2024, entitled “Battery Swapping System for Battery Swapping Station, Battery Charging Method and Storage Medium for Battery Swapping Station”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electric vehicle battery swapping technology, and in particular to a battery swapping station system and a battery charging method for the battery swapping station. Background Technology

[0003] Electric vehicle battery swapping stations are energy stations that provide charging and rapid battery swapping for electric vehicles. These stations typically consist of charging equipment and battery compartments, with the charging equipment charging the batteries within the compartments.

[0004] In related technologies, when multiple battery compartments start charging simultaneously, they compete for a single charging device. The charging device cannot be used by other battery compartments until the batteries in that compartment are fully charged. This reduces the utilization rate of the charging device and the charging efficiency of the batteries. Furthermore, in related technologies, when multiple batteries need to be charged simultaneously, they must maintain the same voltage. If different voltages are required, a voltage conversion module must be added, further reducing the charging efficiency. Summary of the Invention

[0005] This application provides a battery swapping system for a battery swapping station and a battery charging method for the battery swapping station, which can not only improve the utilization rate of charging equipment, but also improve the charging efficiency of the battery.

[0006] In a first aspect, this application provides a battery swapping system for a battery swapping station. The system includes: multiple charging devices, multiple battery compartments, and multiple switch matrices. Each charging device includes: a bidirectional power module, wherein a first port of the bidirectional power module is connected to the power grid and configured to convert AC power from the power grid into DC voltage; a second port of the bidirectional power module is connected to a corresponding battery compartment via a switch matrix and configured to convert the DC voltage of the battery in the battery compartment into AC voltage from the power grid; and a switch matrix, connected between the charging devices and the battery compartments, configured to switch the connection between the multiple charging devices and the multiple battery compartments, so that a target charging device that meets the battery charging requirements charges the battery in the target battery compartment, wherein the target charging device is a charging device in an uncharged state.

[0007] As can be seen from the above, in this embodiment of the application, the target charging device is determined according to the charging requirements of the battery to be charged. That is, the target charging device can provide the battery with the required voltage, current and power without voltage conversion, thereby improving the charging efficiency of the battery.

[0008] In addition, in this embodiment, the uncharged state of the charging device includes a state in which the charging device is connected to other battery compartments but is not charging, and a state in which the charging device is not connected to other battery compartments. When the target charging device is connected to other battery compartments but is not charging, the target charging device is released and controlled to charge the target battery compartment. This solves the problem of low charging efficiency caused by the inability to charge other battery compartments when the charging device is connected to a battery compartment in the related technology, thereby improving the utilization rate of the charging device and the charging efficiency of the battery.

[0009] Furthermore, in this embodiment of the application, a bidirectional power module is deployed in the charging device. This bidirectional power module not only converts the AC power from the power grid into DC power to charge the battery in the battery compartment, thereby improving the charging efficiency of the battery, but also converts the DC power from the battery into AC power and releases the AC power into the power grid, thereby improving the utilization rate of electrical energy.

[0010] According to an embodiment of the first aspect of this application, bidirectional power modules of multiple charging devices are connected in parallel.

[0011] By connecting bidirectional power modules in parallel, the failure of one bidirectional power module will not affect the operation of other bidirectional power modules, and thus will not affect the operation of other charging equipment, thereby improving the battery swapping efficiency of the battery swapping station.

[0012] According to any of the embodiments described in the first aspect of this application, different bidirectional power supply modules have different DC voltages.

[0013] In the above embodiments, each bidirectional power module outputs a corresponding DC voltage to meet the charging requirements of different batteries.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the charging device further includes: a DC-DC conversion module; the DC-DC conversion module includes a third port and a fourth port, wherein the third port is connected to the second port and the fourth port is connected to the charging terminal of the battery swapping station; the DC-DC conversion module is configured to convert the DC voltage output by the bidirectional power module into a DC voltage that the charging terminal can withstand.

[0015] In the above embodiments, the charging equipment can not only charge the batteries in the battery compartment, but also charge vehicles outside the station. Charging vehicles through the charging terminal can reduce energy waste, improve power utilization, and increase the revenue of the battery swapping station.

[0016] Secondly, this application also provides a battery charging method for a battery swapping station, applied to a battery swapping system at the station. The method includes: acquiring charging parameter information of a battery located in a target battery compartment; determining a target charging device that matches the charging parameter information from multiple charging devices, wherein the target charging device is a charging device in an uncharged state; switching the connection state between the target charging device and the battery compartment through a switch matrix to connect the target charging device to the target battery compartment; and charging the battery in the target battery compartment through the target charging device.

[0017] As can be seen from the above, in this embodiment, the target charging device is determined based on the charging parameters of the battery to be charged. That is, the target charging device can provide the battery with the required voltage, current, and power without voltage conversion, thereby improving the battery's charging efficiency. Furthermore, since the target charging device is determined based on the battery's charging needs, when the battery's charging parameters change during charging, a charging device matching the changed parameters can be used to charge the battery, releasing the target charging device to charge other batteries. This solves the problem of low battery charging efficiency caused by multiple battery compartments competing for the same charging device, thus not only improving the utilization rate of the charging device but also increasing the battery's charging efficiency.

[0018] Furthermore, in this embodiment, the uncharged state of the charging device includes a state where the charging device is connected to other battery compartments but not charging, and a state where the charging device is not connected to other battery compartments. When the target charging device is connected to other battery compartments but not charging, the target charging device is released and controlled to charge the target battery compartment. This solves the problem of low charging efficiency caused by the inability to charge other battery compartments when the charging device is connected to a battery compartment in the related technology, thereby improving the utilization rate of the charging device and the charging efficiency of the battery.

[0019] According to an embodiment of the second aspect of this application, determining a target charging device that matches charging parameter information from a plurality of charging devices includes: acquiring charging strategies of the plurality of charging devices, wherein the charging strategies include at least the charging priorities of the plurality of charging devices and the charging time period corresponding to each charging device; determining at least one candidate charging device that matches the charging parameter information from the plurality of charging devices; and determining a target charging device from the at least one candidate charging device according to the charging strategy corresponding to the at least one candidate charging device.

[0020] In the above embodiments, determining the target charging device for charging the battery based on the battery's charging parameter information and the charging strategy of the charging device can improve the utilization rate of the charging device and also improve the charging efficiency of the battery.

[0021] According to an embodiment of the second aspect of this application, determining a target charging device from at least one candidate charging device based on a charging strategy corresponding to at least one candidate charging device includes: determining, based on the charging strategy corresponding to at least one candidate charging device, a candidate charging device with an idle charging period and a charging priority higher than a preset level as the target charging device.

[0022] In the above embodiments, selecting a charging device with an idle period to charge the battery can reduce the risk of multiple battery compartments competing for a single charging device and improve the utilization rate of the charging device; in addition, using a candidate charging device with a higher charging priority to charge the battery can improve the charging efficiency of the battery.

[0023] According to an embodiment of the second aspect of this application, after determining a target charging device that matches the charging parameter information from a plurality of charging devices, the method further includes: when the target charging device is detected to be in an idle state, adjusting the switching state of the switch corresponding to the target charging device in the switch matrix to connect the target charging device and the target battery compartment.

[0024] In the above embodiments, the on / off state between the charging device and the battery compartment is controlled by adjusting the switch matrix, so that the charging device can be fully utilized and the charging device for the battery compartment can meet the charging needs of the battery, thereby improving the charging efficiency of the battery.

[0025] According to an embodiment of the second aspect of this application, charging a battery in a target battery compartment using a target charging device includes: acquiring battery swapping frequency and electricity price information of a battery swapping station at different time periods; determining a first time period for charging the battery based on the battery swapping frequency and electricity price information; and charging the battery in the target battery compartment using the target charging device during the first time period.

[0026] In the above embodiments, the impact of battery swapping frequency and electricity price information on the utilization rate of charging equipment and the charging efficiency of batteries is fully considered. At the same time, the battery swapping cost of the battery swapping station can be reduced and the operating income of the battery swapping station can be increased.

[0027] According to an embodiment of the second aspect of this application, determining a first time period for charging the battery based on the battery swapping frequency and electricity price information includes: comparing a first battery swapping frequency with a first preset frequency threshold to obtain a comparison result, wherein the first battery swapping frequency is the battery swapping frequency corresponding to the battery swapping station in the current time period; if the comparison result indicates that the first battery swapping frequency is less than the first preset frequency threshold, determining the time period in which the electricity price is lower than the first preset electricity price as the first time period; if the comparison result indicates that the first battery swapping frequency is greater than or equal to the first preset frequency threshold, determining the current time period as the first time period.

[0028] In the above embodiments, when the battery swapping frequency of the battery swapping station is low, the battery is charged during periods when the grid electricity price is low, so as to reduce the battery charging cost and increase the revenue of the battery swapping station.

[0029] According to any of the embodiments described above in the second aspect of this application, after charging the battery in the target battery compartment by the target charging device, charging parameter information of the battery during the charging process is obtained; if a change in the charging parameter information is detected, a target charging device that matches the changed charging parameter information is determined from a plurality of charging devices.

[0030] In the above embodiments, the battery swapping controller selects appropriate charging equipment to charge the battery at different charging stages based on the changes in battery charging parameters during the charging process, thereby improving battery charging efficiency and increasing the utilization rate of the charging equipment.

[0031] According to the second aspect of this application, the direct current of the battery is converted into alternating current by a bidirectional power module, and the alternating current is discharged to improve the energy utilization rate and reduce the power cost of the battery swapping station.

[0032] According to the second aspect of this application, the method of converting the direct current (DC) power of the battery into alternating current (AC) power through a bidirectional power supply module and discharging the AC power includes: acquiring the battery swapping frequency and electricity price information of the battery swapping station in different time periods; determining a second battery swapping frequency corresponding to the current time period based on the battery swapping frequency in different time periods; if the second battery swapping frequency is less than a second frequency threshold, determining the time period in which the electricity price is higher than a second preset electricity price as the second time period; and in the second time period, converting the DC power of the battery into AC power through the bidirectional power supply module and discharging the AC power.

[0033] In the above embodiments, controlling battery discharge can improve energy utilization and increase the revenue of battery swapping stations.

[0034] According to any of the foregoing embodiments of the second aspect of this application, obtaining charging parameter information of a battery located in a target battery compartment includes: when the battery is detected to be located in the target battery compartment, reading the target battery data of the battery; uploading the target battery data to a cloud platform, and obtaining charging parameter information fed back by the cloud platform, wherein the cloud platform determines the charging parameter information matching the target battery data according to a pre-set correlation between the battery data and the charging parameter information.

[0035] In the above embodiments, the cloud platform determines the charging parameter information corresponding to the battery, which can reduce the workload of the battery swapping controller, enabling the battery swapping controller to more efficiently schedule charging equipment to charge the batteries in the battery compartment, thereby improving the battery swapping efficiency and charging efficiency.

[0036] Thirdly, this application provides an electronic device comprising: a processor and a memory storing computer program instructions; the processor, when executing the computer program instructions, implements the battery charging method of the battery swapping station as described in the second aspect.

[0037] Fourthly, this application provides a readable storage medium storing computer program instructions that, when executed by a processor, implement the battery charging method of the battery swapping station as described in the second aspect.

[0038] 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

[0039] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0040] Figure 1 is a schematic diagram of the structure of a battery swapping station system according to an embodiment of this application;

[0041] Figure 2 is a schematic diagram of the structure of a battery swapping station according to an embodiment of this application;

[0042] Figure 3 is a flowchart of a battery charging method for a battery swapping station according to another embodiment of this application;

[0043] Figure 4 is an overall flowchart of a battery charging method for a battery swapping station according to another embodiment of this application;

[0044] Figure 5 is a schematic diagram of the structure of an electronic device according to an embodiment of this application.

[0045] The accompanying drawings are not necessarily drawn to scale. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] 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.

[0048] In the description of the embodiments of this application, technical terms such as "first" and "second" are only configured 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.

[0049] In this application, the term "embodiment" is used to mean that a specific 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 in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0050] 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.

[0051] 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).

[0052] 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.

[0053] 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.

[0054] In related technologies, a battery swapping station system includes: battery swapping equipment, at least two chargers, a charging position corresponding to each charger, and a switch corresponding to each charger located between the charger and the charging position. Each charger's input is connected to a power source, and each charger's output is connected to the batteries to be charged at at least two charging positions via a switch. Each charger is also connected to the battery swapping equipment. The battery swapping equipment is configured to control the switch to switch the connection between the charger's output and the batteries to be charged at different charging positions. Because each battery to be charged at each charging position is connected to at least two chargers, even if the charger corresponding to the current charging position fails, the battery to be charged at that charging position can still be charged by other chargers, ensuring normal charging of the battery to be charged at that charging position and effectively improving the overall operating efficiency of the battery swapping station.

[0055] However, in related technologies, battery swapping station systems can only charge batteries in one direction and cannot discharge them. In stations with low swapping frequencies, batteries remain idle for extended periods, resulting in energy waste. Furthermore, in these technologies, the charging equipment (e.g., the charger) is treated as a power pool, with its output connected via a common DC bus. All battery inputs are coupled to this DC bus. When multiple batteries are charging simultaneously, all battery voltages must be equal. If different voltages are required for different batteries, a DC-DC conversion module is needed to convert the output voltage of the charging equipment to provide different charging voltages for different batteries. Additionally, these technologies use matrix switches to switch different output terminals, requiring compatibility with different voltage levels, making matrix switch control even more challenging.

[0056] In related technologies, each battery compartment is connected to at least two charging devices. When multiple battery compartments start charging simultaneously, there is a possibility that two battery compartments may compete for a single charging device. In this scenario, the batteries inside the battery compartment may not be able to be charged. Moreover, the charging devices charge the battery compartments in the battery swapping station in a one-to-one or one-to-two manner, resulting in a large total power demand. When the utilization rate of the battery swapping station is low, the utilization rate of the charging devices within the station is also relatively low, leading to resource waste.

[0057] Based on this, embodiments of this application provide a battery swapping system for a battery swapping station and a battery charging method for the station. In this embodiment, the battery swapping system allocates charging equipment to the battery compartment based on the charging parameter information of the batteries in the battery compartment, so as to optimize the charging power of the batteries in the swapping station, thereby improving the utilization rate of the charging equipment and the charging efficiency of the batteries.

[0058] It should be noted that the battery charging method for the battery swapping station provided in this application embodiment can be applied to the battery swapping system of the battery swapping station. Before introducing the battery charging method for the battery swapping station, the battery swapping system of the battery swapping station provided in this application embodiment will be introduced first. The battery swapping system of the battery swapping station provided in this application embodiment can realize battery swapping for electric vehicles, that is, replacing the vehicle's battery, for example, performing battery swapping operations on commercial vehicles.

[0059] In one embodiment, FIG1 shows a schematic diagram of the structure of the battery swapping system of the battery swapping station provided in the embodiment of the present application. As can be seen from FIG1, in the embodiment of the present application, the battery swapping system of the battery swapping station includes at least: a battery swapping controller 10 (not shown in FIG1), multiple charging devices 20, multiple battery compartments 30, and multiple switch matrices 50 (not shown in FIG1).

[0060] In the above embodiments, the charging device can be, but is not limited to, a charger. Each charging device can obtain voltage from an AC bus (e.g., a 380V AC bus) and perform voltage conversion. The output voltage, current and / or power can meet the charging requirements of a battery with corresponding charging parameters. For example, charging device 1 can charge a battery with charging parameter 11, and charging device 2 can charge a battery with charging parameter 22, wherein charging parameter 11 and charging parameter 22 are different.

[0061] It should be noted that, in the embodiments of this application, the battery charging parameters are configured to characterize the battery's charging requirements, wherein the battery charging parameters include at least one of the following: voltage, current, and power. The voltage in the AC bus can be obtained by transforming the voltage output from the power grid; for example, in Figure 1, the AC power from the 10kV power grid is converted to 380V AC power.

[0062] In addition, in this embodiment of the application, each battery compartment can hold one battery, and each charging device corresponds to multiple battery compartments, that is, one charging device can charge the batteries in multiple battery compartments at the same time.

[0063] In this embodiment, the battery swapping controller is connected to multiple charging devices and is configured to control the multiple charging devices to charge the batteries in the corresponding battery compartments by executing the battery charging method of the battery swapping station provided in this embodiment.

[0064] In this embodiment of the application, as shown in FIG1, each charging device includes a bidirectional power module AC / DC, and the bidirectional power modules of different charging devices are connected in parallel. The bidirectional power module includes a first port and a second port. The first port of the bidirectional power module is connected to the power grid and configured to convert the AC power from the power grid into DC voltage. The second port of the bidirectional power module is connected to the corresponding battery compartment via a switch matrix and configured to convert the DC voltage of the battery in the battery compartment into the AC voltage of the power grid. The bidirectional power module is configured to convert the AC power from the power grid into DC power, and to convert the DC power of the battery in the battery compartment connected to the charging device into AC power.

[0065] A switch matrix is ​​connected between the charging device and the battery compartment and is configured to switch the connection relationship between multiple charging devices and multiple battery compartments so that the target charging device that meets the battery charging requirements charges the battery in the target battery compartment, wherein the target charging device is a charging device in an uncharged state.

[0066] Therefore, in this embodiment, the uncharged state of the charging device includes the state where the charging device is connected to other battery compartments but not charged, and the state where the charging device is not connected to other battery compartments. When the target charging device is connected to other battery compartments but not charged, the target charging device is released and controlled to charge the target battery compartment. This solves the problem of low charging efficiency caused by the inability to charge other battery compartments when the charging device is connected to a battery compartment in the related technology, thereby improving the utilization rate of the charging device and the charging efficiency of the battery.

[0067] Furthermore, in this embodiment of the application, a bidirectional power module is deployed in the charging device. This bidirectional power module not only converts the AC power from the power grid into DC power to charge the battery in the battery compartment, thereby improving the charging efficiency of the battery, but also converts the DC power from the battery into AC power and releases the AC power into the power grid, thereby improving the utilization rate of electrical energy.

[0068] In one embodiment, a bidirectional power module is deployed in each charging device, and the bidirectional power modules of multiple charging devices are connected in parallel, with different bidirectional power modules having different DC voltages.

[0069] In this embodiment, each bidirectional power module can output a corresponding DC voltage, eliminating the need for an additional DC voltage conversion module and thus meeting the charging requirements of different batteries. As an example, charging devices outputting the same DC voltage can be deployed in the same charging device group. When charging a battery, the battery's charging parameters can be obtained, and a target charging device group matching the charging parameters can be selected from multiple charging device groups. Then, a charging device in a non-working state (e.g., idle state, or having completed its charging task) can be selected from the multiple charging devices included in the target charging device group to charge the battery.

[0070] In one embodiment, as shown in Figure 1, the charging device further includes a DC / DC converter module. The DC / DC converter module includes a third port and a fourth port; the third port is connected to the second port, and the fourth port is connected to the charging terminal of the battery swapping station.

[0071] In this embodiment, the DC-DC conversion module is configured to convert the DC power output from the bidirectional power supply module into a DC voltage that the charging terminal can withstand. The charging terminal is configured for off-site vehicle charging.

[0072] As an example, as shown in Figure 1, the input terminal of the charging terminal 40 is DC coupled to the output terminal of the charging device, and the output terminal of the charging terminal 40 (output terminal 1 or output terminal 2 in Figure 1) is connected to the vehicle to charge it. Therefore, in this embodiment, the charging device can charge not only the battery in the battery compartment but also vehicles outside the station. This allows for emergency charging of vehicles in scenarios where the battery swapping station is unavailable (e.g., the swapping mechanism malfunctions, or the battery compartment cannot be charged), or where the station's utilization rate is low. This not only provides emergency power for vehicles and reduces energy waste but also improves energy utilization and increases the revenue of the battery swapping station.

[0073] In one embodiment, the battery swapping system provided in this application can be applied to a battery swapping station, which can be a commercial vehicle battery swapping station. For example, Figure 2 shows a schematic diagram of the battery swapping station structure. As shown in Figure 2, the battery swapping station includes multiple charging devices 201, multiple battery compartments 202 connected to the multiple charging devices, a battery transfer mechanism 203, a battery swapping mechanism 204, and a driving passage 205.

[0074] In practical applications, when a vehicle enters the driving lane, the battery swapping mechanism removes the battery from the vehicle and places it in the battery transfer mechanism. The battery transfer mechanism then places the removed battery into the battery compartment, allowing the charging mechanism to charge the battery in the compartment. Simultaneously, the battery transfer mechanism can also retrieve a fully charged battery from the battery compartment and install it onto the vehicle via the battery swapping mechanism.

[0075] This concludes the introduction to the battery swapping station system provided in the embodiments of this application.

[0076] The following describes the battery charging method for the battery swapping station provided in the embodiments of this application, in conjunction with the battery swapping system of the swapping station.

[0077] In one embodiment, Figure 3 shows a flowchart of a battery charging method for a battery swapping station. This method can be applied to the aforementioned battery swapping system, specifically to the battery swapping controller of the battery swapping system. As shown in Figure 3, the method may include the following steps S301 to S304:

[0078] Step S301: Obtain the charging parameter information of the battery located in the target battery compartment.

[0079] In step S301, the battery charging parameter information includes at least one of the following: the current, voltage, and power required for battery charging. Each battery has corresponding charging parameter information, and charging the battery according to this charging parameter information can improve the battery charging efficiency.

[0080] In one example, a battery identification unit is deployed inside the battery compartment. This unit can read the battery identifier and send it to the cloud platform. The cloud platform then determines the corresponding battery charging information based on the correspondence between the battery identifier and charging parameter information.

[0081] Step S302: From multiple charging devices, determine the target charging device that matches the charging parameter information.

[0082] In step S302, the target charging device is a charging device in an uncharged state, which includes: an idle state indicating that the target charging device is not connected to other battery compartments, or a charging completed state indicating that the target charging device is connected to other battery compartments but is not charging.

[0083] It should be noted that in related technologies, when the target charging device is in a fully charged state, it is still occupied by the battery compartment. Until the battery in the battery compartment is removed, it cannot be used by other battery compartments. This reduces the utilization rate of the charging device and wastes resources. However, in this embodiment, when the target charging device is in a fully charged state, the connection between the target charging device and the battery compartment can be switched, allowing the target charging device to charge the target battery compartment, thereby improving the utilization rate of the charging device.

[0084] Furthermore, in step S302, different charging parameter information corresponds to different charging needs. After determining the battery's charging parameter information, the battery's charging needs can be determined. The battery swapping controller can determine whether a charging device meets the battery's charging needs based on one or more parameters, such as current, voltage, and power, output by each charging device in the battery swapping station. If the charging device can meet the battery's charging needs, then the charging device can be identified as the target charging device.

[0085] Step S303: Switch the connection status between the target charging device and the battery compartment through a switch matrix to connect the target charging device and the target battery compartment.

[0086] In step S303, the battery swapping controller can send instructions to the switch matrix to control the on / off state of the corresponding switches in the switch matrix, thereby switching the connection state between the target charging device and the battery compartment without the need for manual switching of the connection state between the charging device and the battery compartment. Compared with manual switching, this improves the switching efficiency of the connection state between the charging device and the battery compartment and reduces the switching delay.

[0087] Step S304: Charge the battery in the target battery compartment using the target charging device.

[0088] In one embodiment, the battery swapping controller can determine the charging status of the target charging device by detecting whether the target charging device is connected to the battery compartment. For example, if the target charging device is not connected to the battery compartment, it is determined that the target charging device is in an idle state; if the target charging device is connected to the battery compartment, it is further detected whether the target charging device is charging the battery compartment; if the target charging device is charging the battery compartment, it is determined that the target charging device is in a working state; if the target charging device is connected to the battery compartment but is not charging the battery compartment, it is determined that the target charging device is in a charging completed state.

[0089] Furthermore, in this embodiment, the battery swapping controller can control the target charging device to charge the battery in the battery compartment based on the grid electricity price. For example, when the grid electricity price is low, the target charging device is controlled to charge the battery in the battery compartment. The battery swapping controller can also determine the charging timing of the battery by combining the charging strategy of the target charging device.

[0090] Based on the scheme defined in steps S301 to S304 above, it can be understood that in this embodiment, the target charging device is determined according to the charging parameters of the battery to be charged. That is, the target charging device can provide the battery with the required voltage, current, and power without voltage conversion, thereby improving the charging efficiency of the battery. Furthermore, since the target charging device is determined according to the battery's charging needs, when the battery's charging parameters change during charging, a charging device matching the changed charging parameters can be used to charge the battery, releasing the target charging device so that it can charge other batteries. This solves the problem of low battery charging efficiency caused by multiple battery compartments competing for the same charging device, thus not only improving the utilization rate of the charging device but also increasing the charging efficiency of the battery.

[0091] Furthermore, in this embodiment, when the target charging device is connected to other battery compartments but not charging, the target charging device is released and controlled to charge the target battery compartment. This solves the problem of low charging efficiency caused by the inability to charge other battery compartments when the charging device is connected to the battery compartment in related technologies, thereby improving the utilization rate of the charging device and the charging efficiency of the battery.

[0092] The following explains the specific implementation process of the battery charging method for the battery swapping station provided in the embodiments of this application.

[0093] In one embodiment, the battery swapping controller first needs to obtain the charging parameter information of the battery located in the target battery compartment. Specifically, upon detecting that the battery is located in the target battery compartment, the battery swapping controller reads the target battery data and uploads it to the cloud platform. The cloud platform determines the charging parameter information that matches the target battery data based on the pre-set correlation between battery data and charging parameter information, and sends the charging parameter information to the battery swapping controller, thereby enabling the battery swapping controller to obtain the charging parameter information fed back from the cloud platform.

[0094] In one example, each battery compartment is equipped with a battery identification reading unit that can read the battery identification of the batteries placed in the compartment. For example, each battery has an RFID code, and the battery identification reading unit in the battery compartment can read the RFID code to obtain the battery identification and transmit the read battery identification to the battery swapping controller. Alternatively, each battery has a graphic code (e.g., a QR code or barcode), and the battery identification reading unit in the battery compartment can read the graphic code to obtain the battery identification and transmit the read battery identification to the battery swapping controller. Or, each battery has a digital or image label affixed to its casing, and the battery identification reading unit in the battery compartment can read the digital or image label to obtain the battery identification.

[0095] After the battery swapping controller obtains the battery identifier of the battery placed in the target battery compartment, it sends the battery identifier to the cloud platform, which then queries the charging parameter information corresponding to the battery identifier.

[0096] Through the above embodiments, the cloud platform determines the charging parameter information corresponding to the battery, which can reduce the workload of the battery swapping controller, enabling the battery swapping controller to more efficiently schedule charging equipment to charge the batteries in the battery compartment, thereby improving the battery swapping efficiency and charging efficiency.

[0097] Furthermore, after obtaining the battery's charging parameter information, the battery swapping controller can select a target charging device that matches the charging parameter information from multiple charging devices.

[0098] In one embodiment, the battery swapping controller can acquire the charging strategies of multiple charging devices, obtain at least one candidate charging device that matches the charging parameter information from the multiple charging devices, and then determine the target charging device from the at least one candidate charging device according to the charging strategy corresponding to the at least one candidate charging device.

[0099] In the above embodiments, the charging strategy includes at least the charging priorities of multiple charging devices and the charging time period corresponding to each charging device. The charging priority of the charging devices is configured to characterize the charging order of the charging devices. The charging priority of the charging devices can be preset. For example, the priority of the charging device with a large output power is higher than the priority of the charging device with a small output power. Charging devices with the same output power have the same level of priority. Alternatively, for charging devices with the same output power, the charging order of the charging devices can be determined according to the order in which the batteries enter the battery compartment.

[0100] In the above embodiments, determining the target charging device for charging the battery based on the battery's charging parameter information and the charging strategy of the charging device can improve the utilization rate of the charging device and also improve the charging efficiency of the battery.

[0101] In one example, after obtaining the battery charging parameter information, the battery swapping controller determines the target charging device from at least one candidate charging device that has an idle charging period and a charging priority higher than a preset level, based on the charging strategy corresponding to at least one candidate charging device.

[0102] Specifically, the battery swapping controller selects a candidate charging device from multiple charging devices deployed at the battery swapping station that can meet the battery's charging needs. When there are multiple candidate charging devices, the battery swapping controller can determine the target charging device based on the charging strategy corresponding to each candidate charging device. For example, it can select the candidate charging device with the highest priority as the target charging device; or it can select the candidate charging device that is not in operation at the current time as the target charging device.

[0103] In the above embodiments, selecting a charging device with an idle period to charge the battery can reduce the risk of multiple battery compartments competing for a single charging device and improve the utilization rate of the charging device; in addition, using a candidate charging device with a higher charging priority to charge the battery can improve the charging efficiency of the battery.

[0104] In one embodiment, the battery swapping system of the battery swapping station further includes a switch matrix connecting multiple charging devices and multiple battery compartments, the switch matrix being configured to switch the on / off states between the multiple charging devices and the multiple battery compartments. When a target charging device is detected to be idle, the battery swapping controller adjusts the switching state of the switch in the switch matrix corresponding to the target charging device, connecting the target charging device to the target battery compartment.

[0105] In one example, the target charging device has N (N is a positive integer greater than or equal to 1) output ports. The N output ports can be connected to N battery compartments through a switch matrix. When port 1 of the target charging device is in the off state, the battery swapping controller can control the switch matrix to connect port 1 to the target battery compartment, so that the target charging device can charge the battery in the battery compartment through port 1.

[0106] In another example, the target charging device has N (N is a positive integer greater than 1) output ports, which can be connected to N battery compartments via a switch matrix. When NM (M is a positive integer greater than or equal to 1, and M < N) output ports of the target charging device are connected to the battery compartments, the battery swapping controller can identify the target output port that has completed charging from among the NM output ports, disconnect the target output port from the battery compartment, and connect the target output port to the target battery compartment. Thus, the target charging device can charge the batteries in the target battery compartment through the target output port. In this example, when the total power provided by the target charging device is less than the total charging power required by the N battery compartments of the target charging device, this method can charge the batteries in the N battery compartments, improving the utilization rate of the charging device.

[0107] Therefore, by adjusting the switch matrix to control the on / off state between the charging equipment and the battery compartment, the charging equipment can be fully utilized, and the charging equipment for the battery compartment can meet the charging needs of the battery, thereby improving the charging efficiency of the battery.

[0108] In one embodiment, after the target charging device is identified and connected to the target battery compartment, the target charging device can charge the battery in the target battery compartment.

[0109] Specifically, firstly, the battery swapping frequency and electricity price information of the battery swapping station at different time periods are obtained; then, the battery swapping controller determines the first time period for charging the battery based on the battery swapping frequency and electricity price information, and charges the battery in the target battery compartment through the target charging equipment during the first time period.

[0110] In the above embodiments, the battery swapping frequency can reflect the operational efficiency of the battery swapping station, and the battery swapping frequency and the operational efficiency of the battery swapping station can be positively correlated. Based on the battery swapping frequency and electricity price information of the battery swapping station, the time period for the target charging equipment to charge the battery is determined, thereby charging the battery at a reasonable time, improving the utilization rate of the charging equipment and the charging efficiency of the battery, while also reducing the battery swapping cost of the battery swapping station and increasing the operating revenue of the battery swapping station.

[0111] In one embodiment, after obtaining the first battery swapping frequency corresponding to the current time period of the battery swapping station, the battery swapping controller compares the first battery swapping frequency with a first preset frequency threshold to obtain a comparison result. If the comparison result indicates that the first battery swapping frequency is less than the first preset frequency threshold, the battery swapping controller determines the time period in which the electricity price is lower than the first preset electricity price as the first time period; and if the comparison result indicates that the first battery swapping frequency is greater than or equal to the first preset frequency threshold, the current time period is determined as the first time period.

[0112] In the above embodiments, the first battery swapping frequency is the battery swapping frequency corresponding to the current time period of the battery swapping station.

[0113] It should be noted that when the battery swapping frequency is low, the number of batteries that need to be charged at the battery swapping station is small, or the number of fully charged batteries is sufficient to handle the vehicles being swapped. In this case, the batteries can be charged when the grid electricity price is low, so as to reduce the battery charging cost and increase the revenue of the battery swapping station.

[0114] In one embodiment, after charging the battery in the target battery compartment through the target charging device, the battery swapping controller can also acquire the charging parameter information of the battery during the charging process, and if a change in the charging parameter information is detected, determine the target charging device that matches the changed charging parameter information from multiple charging devices.

[0115] In one example, the battery's charging parameters change in real time during the charging process. For instance, at the initial stage of charging, the battery requires charging power A; when the charging progress reaches 90%, the required charging power is B. In this scenario, the battery swapping controller selects appropriate charging equipment to charge the battery at different stages based on the changes in the battery's charging parameters during the charging process. This improves the battery's charging efficiency and also increases the utilization rate of the charging equipment. For example, when the charging progress reaches 90%, a high-power charging device is released so that it can charge other batteries.

[0116] In one embodiment, each charging device includes a bidirectional power module. In this embodiment, the bidirectional power module converts the DC power of the battery into AC power and discharges the AC power. The released electrical energy can power vehicles outside the station or other electrical equipment (e.g., lighting equipment, air conditioning equipment) within the battery swapping station, thereby improving energy utilization and reducing the electricity cost of the battery swapping station.

[0117] In one embodiment, during the process of converting the battery's DC power to AC power through a bidirectional power module and discharging the AC power, the battery swapping controller first obtains the battery swapping frequency and electricity price information of the battery swapping station in different time periods, and determines the second battery swapping frequency corresponding to the current time period based on the battery swapping frequency in different time periods; if the second battery swapping frequency is less than a second frequency threshold, the time period in which the electricity price is higher than a second preset electricity price is determined based on the electricity price information as the second time period; during the second time period, the battery's DC power is converted to AC power through the bidirectional power module and the AC power is discharged.

[0118] As an example, when the current time period is detected as a period with a low battery swapping frequency, the battery swapping controller continues to monitor the grid electricity price for the current time period; if the grid electricity price for the current time period is high, the battery swapping controller converts the DC power of the battery into AC power through the bidirectional power module in the charging equipment connected to the target battery compartment, controls the battery discharge, and supplies power to other electrical equipment in the battery swapping station, thereby improving the energy utilization rate. It can also discharge to the grid to increase the revenue of the battery swapping station.

[0119] In one embodiment, Figure 4 shows an overall flowchart of the battery charging method for the battery swapping station provided in this application embodiment. As shown in Figure 4, the process mainly includes the following steps:

[0120] Step S401: The battery is electrically connected to the battery compartment;

[0121] Step S402: The battery swapping controller obtains the battery identifier and uploads the battery identifier to the cloud platform;

[0122] Step S403: The cloud platform queries the charging parameter information corresponding to the battery identifier;

[0123] Step S404: If charging parameter information matching the battery identifier is found, a charging command is generated based on the charging parameter information and sent to the battery swapping controller.

[0124] In step S405, the battery swapping controller obtains charging parameter information from the charging command and controls the on / off state of each switch in the switch matrix according to the battery swapping frequency of the battery swapping station and the grid electricity price.

[0125] Step S406: When the battery compartment is connected to the charging device, control the charging device to charge the battery compartment.

[0126] This concludes the introduction of the methods provided in the embodiments of this application.

[0127] In this embodiment, the battery swapping controller within the battery swapping station can control the charging equipment to perform charging and discharging operations on the batteries. It can charge the batteries during peak or off-peak hours to meet the station's operational needs, and can also discharge the batteries during peak hours or when the station is unavailable due to a malfunction, releasing energy to power external charging equipment for vehicles or other equipment within the station. This achieves efficient utilization of the batteries within the station, reduces operating costs, and increases revenue. Furthermore, in this embodiment, the output of the charging equipment is electrically connected to batteries in multiple battery compartments via a switch array. The battery swapping controller automatically adjusts and switches the output power based on battery charging parameters, achieving flexible allocation across the entire matrix.

[0128] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0129] In one embodiment, this application also provides an electronic device, which includes: a processor and a memory storing computer program instructions; the processor executes the computer program instructions to implement the battery charging method of the battery swapping station described above.

[0130] Figure 5 shows a schematic diagram of the hardware structure of the electronic device provided in an embodiment of this application.

[0131] The electronic device may include a processor 501 and a memory 502 storing computer program instructions.

[0132] Specifically, the processor 501 may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of this application.

[0133] Memory 502 may include a mass storage device configured to store data or instructions. For example, and not limitingly, memory 502 may include a hard disk drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 502 may include removable or non-removable (or fixed) media. Where appropriate, memory 502 may be internal or external to the integrated gateway disaster recovery device. In a particular embodiment, memory 502 is a non-volatile solid-state memory.

[0134] Memory may include read-only memory (ROM), random access memory (RAM), disk storage media devices, optical storage media devices, flash memory devices, and electrical, optical, or other physical / tangible memory storage devices. Therefore, typically, memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the methods according to one aspect of this disclosure.

[0135] The processor 501 reads and executes computer program instructions stored in the memory 502 to implement any of the battery charging methods of the battery swapping station in the above embodiments.

[0136] In one example, the electronic device may also include a communication interface 503 and a bus 510. As shown in Figure 5, the processor 501, memory 502, and communication interface 503 are connected via the bus 510 and communicate with each other.

[0137] The communication interface 503 is mainly configured to enable communication between various modules, devices, units and / or equipment in the embodiments of this application.

[0138] Bus 510 includes hardware, software, or both, that couples components of an electronic device together. For example, and not limitingly, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, bus 510 may include one or more buses. Although specific buses are described and illustrated in embodiments of this application, this application contemplates any suitable bus or interconnect.

[0139] In one embodiment, this application also provides a readable storage medium storing computer program instructions that, when executed by a processor, implement the battery charging method of the aforementioned battery swapping station.

[0140] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0141] The functional blocks shown in the above block diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments configured to perform desired tasks. The programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet or intranets.

[0142] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0143] The above flowcharts and / or block diagrams of the battery swapping system and battery charging method of the battery swapping station according to embodiments of this application have described various aspects of this application. It should be understood that each block in the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable by the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowcharts and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by dedicated hardware performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0144] 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 battery swapping system for a battery swapping station, comprising: Multiple charging devices, multiple battery compartments, and multiple switch matrices; The charging device includes: a bidirectional power module, wherein a first port of the bidirectional power module is connected to the power grid and configured to convert the AC power from the power grid into DC voltage; and a second port of the bidirectional power module is connected to a corresponding battery compartment through the switch matrix and configured to convert the DC voltage of the battery in the battery compartment into the AC voltage of the power grid. The switch matrix, connected between the charging device and the battery compartment, is configured to switch the connection relationship between multiple charging devices and multiple battery compartments, so that a target charging device that meets the battery charging requirements charges the battery in the target battery compartment, wherein the target charging device is a charging device in an uncharged state.

2. The battery swapping system for a battery swapping station according to claim 1, wherein, The bidirectional power modules of multiple charging devices are connected in parallel.

3. The battery swapping system for a battery swapping station according to claim 1 or 2, wherein, Different bidirectional power supply modules have different DC voltages.

4. The battery swapping system for a battery swapping station according to any one of claims 1 to 3, wherein, The charging device further includes: a DC-DC conversion module; The DC-DC conversion module includes a third port and a fourth port, wherein the third port is connected to the second port and the fourth port is connected to the charging terminal of the battery swapping station; The DC-DC conversion module is configured to convert the DC voltage output by the bidirectional power module into a DC voltage that the charging terminal can withstand.

5. The battery swapping system for a battery swapping station according to any one of claims 1 to 4, wherein, Charging devices that output the same DC voltage are deployed in the same charging device group, which includes multiple charging devices.

6. The battery swapping system for a battery swapping station according to any one of claims 1 to 5, wherein, The battery compartment includes a battery identification unit configured to read the battery identifier and send the read battery identifier to a cloud platform. The cloud platform is configured to determine the battery charging information corresponding to the battery based on the correspondence between the battery identifier and charging parameter information.

7. A battery charging method for a battery swapping station, applied to the battery swapping system of any one of claims 1 to 6, the method comprising: Obtain charging parameter information of the battery located in the target battery compartment; From the plurality of charging devices, a target charging device that matches the charging parameter information is determined, wherein the target charging device is a charging device that is not charging; The connection state between the target charging device and the battery compartment is switched by the switch matrix to connect the target charging device to the target battery compartment. The battery in the target battery compartment is charged by the target charging device.

8. The method according to claim 7, wherein, The step of determining the target charging device that matches the charging parameter information from among the plurality of charging devices includes: Obtain charging strategies for multiple charging devices, wherein the charging strategies include at least the charging priorities of the multiple charging devices and the charging time period corresponding to each charging device; From the plurality of said charging devices, at least one candidate charging device that matches the charging parameter information is determined; The target charging device is determined from at least one of the candidate charging devices according to the charging strategy corresponding to at least one of the candidate charging devices.

9. The method according to claim 8, wherein, The step of determining the target charging device from at least one candidate charging device according to the charging strategy corresponding to at least one candidate charging device includes: Based on the charging strategy corresponding to at least one of the candidate charging devices, the candidate charging device with an idle charging period and a charging priority higher than a preset level is determined from at least one of the candidate charging devices as the target charging device.

10. The method according to claim 7, wherein, After determining a target charging device that matches the charging parameter information from among the plurality of charging devices, the method further includes: If the target charging device is detected to be in an idle state, the switching state of the switch in the switch matrix corresponding to the target charging device is adjusted to connect the target charging device and the target battery compartment.

11. The method according to claim 7, wherein, Charging the battery in the target battery compartment using the target charging device includes: Obtain information on battery swapping frequency and electricity price at battery swapping stations during different time periods; Based on the battery swapping frequency and the electricity price information, a first period for charging the battery is determined; The target charging device charges the battery in the target battery compartment during the first time period.

12. The method according to claim 11, wherein, The step of determining the first period for charging the battery based on the battery swapping frequency and the electricity price information includes: The comparison result is obtained by comparing the first battery swapping frequency with the first preset frequency threshold, wherein the first battery swapping frequency is the battery swapping frequency corresponding to the battery swapping station in the current time period; If the comparison result indicates that the first battery swapping frequency is less than the first preset frequency threshold, the period when the electricity price is lower than the first preset electricity price is determined as the first period. If the comparison result indicates that the first battery swapping frequency is greater than or equal to the first preset frequency threshold, the current time period is determined as the first time period.

13. The method according to any one of claims 7 to 12, wherein, After charging the battery in the target battery compartment using the target charging device, the method further includes: Obtain the charging parameter information of the battery during the charging process; If a change in the charging parameter information is detected, a target charging device that matches the changed charging parameter information is determined from among the multiple charging devices.

14. The method according to claim 7, wherein, The method further includes: The direct current (DC) of the battery is converted into alternating current (AC) through a bidirectional power module, and the AC current is then discharged.

15. The method according to claim 14, wherein, The process of converting the direct current (DC) of the battery to alternating current (AC) via a bidirectional power module and discharging the AC power includes: Obtain information on battery swapping frequency and electricity price at battery swapping stations during different time periods; The second battery swapping frequency corresponding to the current time period is determined based on the battery swapping frequency in the different time periods. When the second battery swapping frequency is less than the second frequency threshold, the period when the electricity price is higher than the second preset electricity price is defined as the second period. During the second time period, the direct current of the battery is converted into alternating current through the bidirectional power module, and the alternating current is discharged.

16. The method according to any one of claims 7 to 15, wherein, The process of obtaining the charging parameter information of the battery located in the target battery compartment includes: If the battery is detected to be located inside the target battery compartment, the target battery data of the battery is read; The target battery data is uploaded to the cloud platform, and the charging parameter information fed back by the cloud platform is obtained. The cloud platform determines the charging parameter information that matches the target battery data based on the pre-set correlation between the battery data and the charging parameter information.

17. The method according to any one of claims 7 to 16, wherein, The uncharged state includes: an idle state indicating that the target charging device is not connected to other battery compartments, or a charging completed state indicating that the target charging device is connected to other battery compartments but is not charging.

18. The method according to claim 17, wherein, The method further includes: The charging status of the target charging device is determined based on the connection between the target charging device and the battery compartment.

19. The method according to claim 18, wherein, Determining the charging status of the target charging device based on the connection between the target charging device and the battery compartment includes: If the target charging device is not connected to the battery compartment, it is determined that the target charging device is in the idle state.

20. The method according to claim 18, wherein, Determining the charging status of the target charging device based on the connection between the target charging device and the battery compartment includes: If the target charging device is detected to be connected to the battery compartment, it is detected whether the target charging device is charging the battery compartment. If the target charging device is charging the battery compartment, it is determined that the target charging device is in a working state; When the target charging device is connected to the battery compartment but is not charging the battery compartment, the target charging device is determined to be in the charging completed state.

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