Charging system and method of charging

Abstract

This application provides a charging system and a charging method that can effectively improve the performance of battery charging at low temperatures. The charging system includes: a heating module connected to a plurality of batteries to heat at least one of the plurality of batteries, wherein the temperature of the at least one battery is below a temperature threshold; and charging modules, each of which is connected to a corresponding battery among the plurality of batteries to charge the corresponding battery.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a charging system and a charging method. Background Technology

[0002] With the increasing energy shortage and environmental pollution in modern society, electric vehicles, as a new energy vehicle, have received widespread attention since their introduction. However, the charging problem has always been a major factor restricting their development.

[0003] Therefore, ensuring the normal charging of electric vehicles is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a charging system and a charging method that can effectively improve the performance of battery charging at low temperatures.

[0005] In a first aspect, a charging system is provided, the charging system comprising: a heating module connected to a plurality of batteries to heat at least one of the plurality of batteries, wherein the temperature of the at least one battery is below a temperature threshold; and charging modules, each of the charging modules being connected to a corresponding battery among the plurality of batteries to charge the corresponding battery.

[0006] In this embodiment, by setting a heating module and a charging module connected to multiple batteries in the charging system, the heating module can heat the batteries when their temperature is below a certain temperature threshold, and the charging module can charge the corresponding batteries. On the one hand, this achieves the goal of charging batteries at low temperatures, thus improving the low-temperature charging performance of the batteries. On the other hand, since the heating module and the charging module are integrated into one charging system, the charging system can automatically switch to charging mode after heating is completed, improving charging efficiency and providing a better user experience. Furthermore, since the heating module is connected to multiple batteries, it can simultaneously heat multiple batteries in specific scenarios, effectively improving the heating and charging efficiency of the batteries.

[0007] In some possible implementations, the charging system further includes a switch matrix connected to the heating module and the charging module; wherein the charging system controls the closing and closing of the switch matrix to enable the heating module to heat the at least one battery and the charging module to charge the corresponding battery.

[0008] The above technical solution incorporates a switch matrix in the charging system. On one hand, by controlling the opening and closing of the switch matrix, the heating module heats the battery when it is at a low temperature, and the charging module charges the battery after heating is complete. This control is simple and easy to implement. On the other hand, after heating is complete, the charging system automatically switches to charging mode by controlling the switch matrix, resulting in a better user experience.

[0009] In some possible implementations, the switch matrix includes at least one first switch and at least one second switch. The at least one first switch is disposed between the heating module and the plurality of batteries, and the at least one second switch is disposed between the charging module and the plurality of batteries. When the heating module heats the at least one battery, a first target switch among the at least one first switches is in a closed state, the first switches other than the first target switch are in a closed state, and the second switch is in a closed state. The first target switch is disposed between the heating module and the at least one battery. When the charging module charges the corresponding battery, the at least one first switch is in a closed state, a second target switch among the at least one second switch is in a closed state, and the second switches other than the second target switch are in a closed state. The second target switch is disposed between the charging module and the corresponding battery.

[0010] The way the first and second switches are closed and closed in the above technical solution allows the heating module to heat the battery by controlling the first switch when the battery needs to be heated, and the charging module to charge the battery by controlling the second switch when the battery needs to be charged, effectively ensuring the smooth operation of heating and charging.

[0011] In some possible implementations, the number of the at least one first switch is the same as the number of the plurality of batteries, and the number of the at least one second switch is the same as the number of the plurality of batteries.

[0012] The above technical solution sets the number of the first switch to be the same as the number of batteries, and sets the number of the second switch to be the same as the number of batteries. In this way, when it is necessary to heat or charge the batteries, the control complexity of the first and second switches can be reduced to a certain extent, ensuring the normal operation of heating and charging the batteries.

[0013] In some possible implementations, the charging system includes a heating module. This effectively reduces the cost of heating the battery, thereby improving the performance of low-temperature charging at a lower cost.

[0014] In some possible implementations, the heating module is connected to the plurality of batteries through the same port to heat at least one battery sequentially through the port.

[0015] The above technical solution connects the heating module to multiple batteries through the same port, reducing the number of ports on the heating module and thus reducing its size, which in turn reduces the size of the charging system. Furthermore, the heating module heats at least one battery sequentially, which not only reduces the probability of short circuits but also ensures the sequential heating of the batteries.

[0016] In some possible implementations, the heating module is connected to at least two of the at least one battery via different ports to simultaneously heat the at least two batteries via ports respectively connected to the at least two batteries.

[0017] In the above technical solution, at least two batteries in at least one battery are connected to different ports of the heating module. In this way, the heating module can heat the batteries connected to different ports simultaneously, which improves the battery temperature rise efficiency, thereby effectively shortening the battery heating time, greatly reducing the overall charging time of the battery, and improving charging efficiency and user experience.

[0018] In some possible implementations, the charging system further includes an energy storage module connected to the plurality of batteries to jointly heat at least one battery together with the heating module.

[0019] The above technical solution, by setting an energy storage module in the charging system, enables the energy storage module and the heating module to work together to heat the battery, effectively improving the battery's heating efficiency.

[0020] In a second aspect, a charging method is provided, the method comprising: controlling a heating module connected to a plurality of batteries to heat at least one of the plurality of batteries, wherein the temperature of the at least one battery is below a temperature threshold; and controlling a charging module to charge a corresponding battery among the plurality of batteries, wherein each charging module is connected to the corresponding battery.

[0021] In some possible implementations, controlling the heating module connected to the plurality of batteries to heat at least one of the plurality of batteries includes: controlling the closing and closing of a switch matrix to cause the heating module to heat the at least one battery; controlling the charging module to charge a corresponding battery among the plurality of batteries includes: controlling the closing and closing of a switch matrix to cause the charging module to charge the corresponding battery; wherein the switch matrix is ​​connected to the heating module and the charging module.

[0022] In some possible implementations, the switch matrix includes at least one first switch and at least one second switch, the at least one first switch being disposed between the heating module and the plurality of batteries, and the at least one second switch being disposed between the charging module and the plurality of batteries; controlling the closing and closing of the switch matrix to heat the at least one battery by the heating module includes: controlling a first target switch among the at least one first switch to close, turning off the first switches among the at least one first switch excluding the first target switch, and controlling a second switch to turn off, thereby heating the at least one battery by the heating module, wherein the first target switch is disposed between the heating module and the at least one battery; controlling the closing and closing of the switch matrix to charge the corresponding battery by the charging module includes: controlling the at least one first switch to turn off, closing a second target switch among the at least one second switch, and turning off the second switches among the at least one second switch excluding the second target switch, thereby charging the corresponding battery by the charging module, wherein the second target switch is disposed between the charging module and the corresponding battery.

[0023] In some possible implementations, the method further includes: when the heating module heats the at least one battery to the temperature threshold, controlling the first target switch to switch from the closed state to the off state; controlling the closing and closing of the switch matrix so that the charging module charges the corresponding battery includes: controlling the second switch corresponding to the at least one battery to switch from the off state to the closed state so that the charging module charges the at least one battery.

[0024] In some possible implementations, the number of heating modules is one, and the heating module is connected to the plurality of batteries through the same port. Controlling the heating module connected to the plurality of batteries to heat at least one of the plurality of batteries includes: controlling the heating module to heat the at least one battery sequentially based on the heating sequence.

[0025] In some possible implementations, the number of heating modules is one, and the heating modules are connected to at least two of the at least one battery through different ports. Controlling the heating modules connected to the multiple batteries to heat at least one of the multiple batteries includes controlling the heating modules to heat the at least two batteries simultaneously.

[0026] In some possible implementations, when the temperature of the first battery among the at least two batteries reaches the temperature threshold, controlling the heating module connected to the plurality of batteries to heat at least one of the plurality of batteries includes: controlling the heating module to continue heating the other batteries among the at least two batteries besides the first battery, and heating the battery among the at least one battery that is connected to the same port of the heating module as the first battery; controlling the charging module to charge the corresponding battery among the plurality of batteries includes: controlling the charging module to charge the first battery.

[0027] The above technical solution allows the heating module to continue heating other batteries connected to different ports of the heating module after the temperature of some batteries in at least two batteries reaches the temperature threshold. It also heats batteries in at least one battery connected to the same port of the heating module, without having to wait for all batteries being heated simultaneously to finish heating before heating other batteries. This greatly shortens the heating time and improves the heating efficiency.

[0028] In some possible implementations, controlling a heating module connected to multiple batteries to heat at least one of the multiple batteries includes controlling the heating module and an energy storage module connected to the multiple batteries to jointly heat the at least one battery.

[0029] In some possible implementations, the energy storage module is connected to the plurality of batteries through the heating module. Controlling the heating module and the energy storage module connected to the plurality of batteries to jointly heat at least one battery includes: controlling the heating module to receive the electricity released by the at least one battery and release the electricity to the energy storage module; after the heating module releases the electricity to the energy storage module, controlling the heating module to receive the electricity released by the energy storage module and release the electricity to the at least one battery to heat the at least one battery.

[0030] The above technical solution allows the energy storage module and the heating module to jointly receive the electricity released by the battery, increasing the battery's discharge time and thus reducing the battery's heating frequency. This results in higher battery heating efficiency, effectively shortens the battery's heating time, and significantly reduces the overall charging time, thereby improving charging efficiency and user experience.

[0031] In some possible implementations, the method further includes: receiving location information, the location information being used to indicate at least one battery among the plurality of batteries whose temperature is below the temperature threshold; controlling a heating module connected to the plurality of batteries to heat at least one battery among the plurality of batteries, including: controlling the heating module to heat the at least one battery based on the location information; and controlling a charging module to charge a corresponding battery among the plurality of batteries, including: when the temperature of the at least one battery reaches the temperature threshold, controlling the charging module connected to the at least one battery to charge the at least one battery based on the location information.

[0032] The above technical solution determines at least one battery that needs to be heated based on received location information. On the one hand, determining this at least one battery through software eliminates the need for additional hardware costs, thereby reducing the cost of heating and charging the battery. On the other hand, it improves the accuracy of determining the at least one battery that needs to be heated.

[0033] Thirdly, a charging method is provided, comprising a processor and a memory, the memory for storing a computer program, and the processor for invoking the computer program to execute the method described in the second aspect or its various implementations.

[0034] Fourthly, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the methods described in the second aspect or its implementations. Attached Figure Description

[0035] Figure 1 An architecture diagram of a charging scenario applicable to an embodiment of this application is shown.

[0036] Figure 2 A schematic diagram of a charging system according to an embodiment of this application is shown.

[0037] Figure 3 A schematic diagram of a specific charging system according to an embodiment of this application is shown.

[0038] Figure 4 A schematic diagram of another specific charging system according to an embodiment of this application is shown.

[0039] Figure 5 A schematic diagram of yet another specific charging system according to an embodiment of this application is shown.

[0040] Figure 6 A schematic diagram of another specific charging system according to an embodiment of this application is shown.

[0041] Figure 7A schematic diagram of another specific charging system according to an embodiment of this application is shown.

[0042] Figure 8 A schematic diagram of another specific charging system according to an embodiment of this application is shown.

[0043] Figure 9 A schematic flowchart of a charging method according to an embodiment of this application is shown.

[0044] Figure 10 A flowchart illustrating a specific charging method according to an embodiment of this application is shown.

[0045] Figure 11 A flowchart illustrating another specific charging method according to an embodiment of this application is shown.

[0046] Figure 12 A schematic block diagram of a charging system according to an embodiment of this application is shown. Detailed Implementation

[0047] 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 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.

[0048] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application 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 drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, rather than to describe a specific order or hierarchy.

[0049] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] In this application, the reference to "embodiment" means 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 throughout 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.

[0051] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0052] In the field of new energy, batteries are of paramount importance as the primary power source for electrical devices such as vehicles, ships, or spacecraft, or as energy storage devices. Battery temperature significantly impacts its performance, lifespan, and safety. Currently, most batteries on the market are rechargeable, commonly lithium-ion or lithium-ion polymer batteries. At low temperatures, lithium-ion batteries experience increased internal resistance and reduced capacity; in extreme cases, the electrolyte may freeze, preventing the battery from discharging. This severely affects the battery's low-temperature performance, leading to decreased vehicle power output and reduced driving range. Furthermore, DC charging of lithium-ion batteries at low temperatures causes lithium plating. Lithium plating not only degrades battery performance and significantly shortens cycle life but also limits the battery's fast-charging capacity.

[0053] In view of this, this application proposes a charging system including a heating module and a charging module. The heating module is connected to multiple batteries to heat at least one of the batteries, wherein the temperature of at least one battery is below a temperature threshold. Each charging module is connected to a corresponding battery among the multiple batteries to charge that battery. This application, by setting a heating module and a charging module connected to multiple batteries in the charging system, allows the heating module to heat some batteries when their temperature is below the temperature threshold, and the charging module to charge the corresponding batteries. On the one hand, this achieves the goal of charging batteries at low temperatures, thus improving the low-temperature charging performance of the batteries. On the other hand, since the heating module and the charging module are integrated into one charging system, the charging system can automatically switch to charging mode after heating is completed, improving charging efficiency and providing a better user experience. Furthermore, since the heating module is connected to multiple batteries, it can simultaneously heat multiple batteries in specific scenarios, effectively improving both the heating and charging efficiency of the batteries.

[0054] Figure 1 An architecture diagram of a charging scenario applicable to an embodiment of this application is shown.

[0055] Figure 1 The charging scenario shown may include a charging system 110 and a battery system 120, wherein the battery system 120 may be a battery system in an electric vehicle (including pure electric vehicles and plug-in hybrid electric vehicles).

[0056] The battery system 120 may include at least one battery pack, which can be collectively referred to as battery 121. In terms of battery type, battery 121 can be any type of battery, including but not limited to: lithium-ion batteries, lithium metal batteries, lithium-sulfur batteries, lead-acid batteries, nickel-metal hydride batteries, or lithium-air batteries, etc. In terms of battery size, battery 121 in this embodiment can be a cell, a battery module, or a battery pack. A battery module or battery pack can be formed by connecting multiple batteries in series and parallel. In this embodiment, the specific type and size of battery 121 are not specifically limited.

[0057] In addition, to intelligently manage and maintain the battery 121, prevent overcharging and over-discharging, and extend the battery's lifespan, the battery system 120 generally includes a battery management system (BMS) 122 for monitoring the status of the battery 121. Optionally, the BMS 122 can be integrated with the battery 121 in the same device, or the BMS 122 can be a separate device located outside the battery 121.

[0058] The charging system 110 is a device for replenishing electrical energy to the battery 121 in the battery system 120 and / or heating the battery 121. The charging system 110 includes a charging module and a heating module. The charging system 110 can be a charging pile (or charger), and the charging pile can be a regular charging pile, a supercharging pile, or a charging pile that supports vehicle-to-grid (V2G) mode, etc.

[0059] Optionally, such as Figure 1 As shown, the charging system 110 can be connected to the battery 121 via a wire 130 and to the BMS 122 via a communication line 140. The communication line 140 is used to realize information exchange between the charging system 110 and the BMS. As an example, the communication line 140 includes, but is not limited to, a controller area network (CAN) communication bus or a daisy chain communication bus.

[0060] In addition to communicating with the BMS122 via the communication line 140, the charging system 110 can also communicate with the BMS122 via a wireless network. This application embodiment does not specifically limit the wired or wireless communication type between the charging system 110 and the BMS122.

[0061] Figure 2 A schematic diagram of a charging system according to an embodiment of this application is shown. This charging system can, for example, be... Figure 1 The charging system 110 in the middle.

[0062] like Figure 2 As shown, the charging system 200 may include a heating module 210 and a charging module 220. The heating module is connected to a plurality of batteries to heat at least one of the batteries, the temperature of which is below a temperature threshold. Each charging module 220 is connected to a corresponding battery among the plurality of batteries to charge that corresponding battery.

[0063] In this embodiment, by setting a heating module 210 and a charging module 220 connected to multiple batteries in the charging system 200, the heating module 210 can heat the batteries when the temperature of some batteries is below the temperature threshold, and the charging module 220 can charge the corresponding batteries. On the one hand, this achieves the purpose of charging the batteries at low temperatures, thus improving the low-temperature charging performance of the batteries. On the other hand, since the heating module 210 and the charging module 220 are integrated into one charging system 200, the charging system 200 can automatically switch to charging mode after heating is completed, improving charging efficiency and providing a better user experience. Furthermore, since the heating module 210 is connected to multiple batteries, it can simultaneously heat multiple batteries in specific scenarios, effectively improving the heating and charging efficiency of the batteries.

[0064] When the heating module 210 heats at least one battery to a temperature threshold, the charging module 220 corresponding to that at least one battery can charge it. The charging module 220 can charge the battery according to its state parameters. These state parameters may include, but are not limited to, at least one of the following parameters: temperature, voltage, capacity, and state of charge (SOC).

[0065] Furthermore, the charging system 200 may also include a control module that can acquire battery state parameters so that the charging module 220 can charge the battery according to the battery state parameters. As an example, the battery's BMS can send the battery state parameters to the control module. This BMS could, for example, be... Figure 1The BMS122 is an example. As another example, the BMS can store battery status parameters in the cloud, and the control module can retrieve these parameters from the cloud.

[0066] The charging system 200 may include only one control module, or it may include multiple control modules. For example, the number of control modules may be the same as the number of charging modules 220.

[0067] Assuming the battery status parameters include battery temperature, the control module, after obtaining the battery temperature, can determine whether to heat or charge the battery based on that temperature. Assuming a temperature threshold of 5°C, if the battery temperature is 3°C, it can be determined to heat the battery first; if the battery temperature is 8°C, it can be determined to charge the battery directly.

[0068] Alternatively, the BMS can automatically determine whether the battery temperature is less than or equal to a temperature threshold. If the temperature is less than or equal to the temperature threshold, the BMS can send a heating request to the control module to request that the battery be heated. If the temperature is greater than the temperature threshold, the BMS can send a charging request to the control module to request that the battery be charged.

[0069] The temperature threshold can be any preset value, designed to indicate that the battery is in a low-temperature state. This temperature threshold can be set according to factors such as the battery's geographical location, battery type, attribute parameters, and the system architecture in which the battery is located. This application embodiment does not limit its specific value. As an example, the temperature threshold can be any value below 10 degrees Celsius (°C), for example, it can be 5°C.

[0070] Optionally, the heating module 210 can be an energy storage element. For example, the heating module 210 can be an inductor and / or a capacitor. Alternatively, the heating module 210 can also be a direct current-to-direct current (DC) converter.

[0071] Optionally, the heating module 210 can heat the battery using pulse heating.

[0072] Specifically, the heating module 210 can output a pulse current to the battery based on the heating parameters sent by the battery. This pulse current is used to heat the battery. The heating parameters may include at least one of the following parameters: heating frequency, heating amplitude, heating voltage, and heating current.

[0073] Heating parameters can be carried in the same message as battery status parameters. Alternatively, after the control module determines that the battery needs to be heated, it can send a heating confirmation message to the battery, which confirms that heating has been initiated. Afterward, the battery can send heating parameters back to the control module.

[0074] In the above technical solution, the heating module 210 heats the battery in a pulse manner according to the heating parameters sent by the battery, so that the pulse current output by the heating module 210 can be matched with the battery to the greatest extent, thereby effectively improving the heating efficiency.

[0075] Optionally, the number of heating modules 210 can be the same as the number of charging modules 220, that is, one heating module 210 corresponds to one charging module 220. This arrangement can reduce the control complexity of heating the battery.

[0076] Alternatively, the number of heating modules 210 can be less than the number of charging modules 220. For example, the charging system 200 may include multiple charging modules 220 and one heating module 210. In this way, the cost of heating the battery can be effectively reduced, thereby improving the performance of low-temperature charging of the battery at a lower cost.

[0077] In the case where the charging system 200 includes only one heating module 210, such as Figure 3 As shown, one port of each of the multiple batteries can be connected to the same port of the heating module 210, that is, the heating module 210 is connected to multiple batteries through the same port.

[0078] Refer again Figure 3 The heating module 210 includes two ports. One of the ports is connected to four batteries, and the other port is connected to the negative terminal of the charging module 220 and the negative terminal of the batteries.

[0079] In the above technical solution, one port of each of the multiple batteries is connected to the same port of the heating module 210, which reduces the number of ports of the heating module 210, thereby reducing the size of the heating module 210 and thus reducing the size of the charging system 200.

[0080] In some scenarios, there may be more than one battery, meaning that more than one battery needs to be heated. If the heating module 210 is connected to multiple batteries through the same port, a short circuit may occur if at least one battery is heated simultaneously.

[0081] Therefore, the heating module 210 can specifically be used to heat multiple batteries sequentially based on the heating sequence. In other words, the heating module 210 heats at least one battery sequentially by connecting to the same port of the multiple batteries.

[0082] The heating sequence can be determined by the control module or by the heating module 210.

[0083] For example, the control module may randomly determine the heating sequence in at least one battery, or determine the heating sequence according to the order in which the batteries are connected to the charging system 200.

[0084] As another example, the control module can determine the heating sequence based on the order in which the temperatures of at least one battery are obtained. For instance, if at least one battery includes battery 1, battery 2, and battery 3, the control module first obtains the temperature of battery 2, then the temperature of battery 3, and finally the temperature of battery 1. Therefore, the heating sequence is as follows: battery 2, battery 3, and battery 1.

[0085] As another example, the control module can determine the heating sequence based on the state of charge (SOC) of at least one battery. For instance, the lower the SOC, the earlier the battery is heated, and the higher the SOC, the later it is heated.

[0086] Combination Figure 3 For example. Figure 3 The system includes four batteries: battery 1, battery 2, battery 3, and battery 4. The temperatures of batteries 1 and 2 are below a temperature threshold. Based on the order in which the temperatures of the batteries are obtained, the control module determines the heating sequence to heat battery 1 first, followed by battery 2. After the heating module 210 heats battery 1 until its temperature reaches the temperature threshold, the heating module 210 then heats battery 2.

[0087] In the above technical solution, when more than one battery needs to be heated, the heating module 210 heats at least one battery sequentially based on the heating sequence, which not only reduces the probability of short circuits but also ensures the orderly heating of the batteries.

[0088] In other embodiments, the heating module 210 can be connected to at least two of the batteries in at least one battery through different ports, so as to heat the at least two batteries simultaneously through the ports respectively connected to the at least two batteries.

[0089] Refer again Figure 4 The heating module 210 includes four ports. Battery 1 and Battery 2 are connected to the same port of the heating module 210, and Battery 3 and Battery 4 are connected to the same port of the heating module 210.

[0090] At least two batteries are connected to different ports of the heating module 210. In this way, the heating module 210 can heat the batteries connected to different ports simultaneously, which improves the battery temperature rise efficiency, thereby effectively shortening the battery heating time, greatly reducing the overall battery charging time, and improving charging efficiency and user experience.

[0091] Since heating batteries connected to different ports of the heating module 210 simultaneously will not cause a short circuit, in order to improve heating efficiency, the heating module 210 can be specifically used to simultaneously heat at least two batteries when the temperature of at least two batteries connected to different ports of the heating module 210 is below a temperature threshold.

[0092] The above technical solution allows the heating module 210 to heat batteries connected to different ports simultaneously, so that some batteries no longer have to wait for other batteries to finish heating before they can be heated, effectively shortening the heating time of the batteries, thereby greatly reducing the overall charging time of the batteries and improving charging efficiency and user experience.

[0093] If the temperature of one of the at least two batteries being heated simultaneously (such as the first battery) reaches a temperature threshold, the first battery can exit the heating mode, and the heating module 210 continues to heat the other batteries in the at least two batteries besides the first battery. Simultaneously, the heating module 210 heats at least one battery that is connected to the same port as the first battery within the heating module 210.

[0094] Regarding the battery connected to the same port as the heating module 210, such as Figure 4 Battery 1 and Battery 2 in the middle, or, as Figure 4 In the battery 3 and battery 4, the heating module 210 can heat the battery 1 and battery 2 according to the heating sequence, or heat the battery 3 and battery 4 according to the heating sequence.

[0095] The determination of the heating sequence can be referred to the previous description, and will not be described in detail here for the sake of brevity.

[0096] Refer again Figure 4Battery 1 and battery 2 are connected to the same port of heating module 210, as are battery 3 and battery 4. If the temperatures of batteries 1, 2, 3, and 4 are all below a temperature threshold, and based on the heating sequence, battery 1 is heated before battery 2, and battery 3 before battery 4, then heating module 210 can heat batteries 1 and 3 simultaneously. After battery 1 reaches its temperature threshold, battery 1 exits the heating mode, and battery 2 enters the heating mode, where heating module 210 heats battery 2. Simultaneously, heating module 210 continues to heat battery 3. After battery 3 reaches its temperature threshold, battery 3 exits the heating mode, and battery 4 enters the heating mode, where heating module 210 heats battery 4.

[0097] After battery 1 exits the heating mode, charging module 220_1 charges battery 1. And after battery 3 exits the heating mode, charging module 220_3 charges battery 3.

[0098] In the above technical solution, after the temperature of some of the batteries in at least two batteries reaches the temperature threshold, the heating module 210 continues to heat other batteries in at least two batteries that are connected to different ports of the heating module 210 from the batteries in the same port as the batteries in the same port of the heating module 210. This eliminates the need to wait for all batteries being heated at the same time to finish heating before heating other batteries, greatly shortening the heating time and improving the heating efficiency.

[0099] Normally, the capacity of the energy storage device in the heating module 210 is limited. When pulse heating is used, it needs to be charged and discharged quickly in conjunction with the battery. Therefore, when the heating module 210 is used alone to heat the battery, the heating current frequency is high and the heating efficiency is low.

[0100] To further improve heating efficiency, thereby increasing charging speed and improving user experience, the heating current frequency can be reduced, such as... Figure 5 As shown, the charging system 200 may further include an energy storage module 230, which is connected to multiple batteries to work together with the heating module 210 to heat at least one battery.

[0101] By setting an energy storage module 230 in the charging system 200, the energy storage module 230 and the heating module 210 work together to heat the battery, reducing the frequency of the heating current and effectively improving the heating efficiency of the battery.

[0102] Alternatively, the energy storage module 230 can be a low-power module. For example, the energy storage module 230 can be a battery. By setting the energy storage module 230 as a low-power energy storage module, the cost of the charging system 200 can be reduced.

[0103] Alternatively, the energy storage module 230 can be an energy storage element such as an inductor or a capacitor.

[0104] The energy storage module 230 can be directly connected to multiple batteries, or as... Figure 5 As shown, multiple batteries can be connected via the heating module 210.

[0105] When the energy storage module 230 is connected to multiple batteries through the heating module 210, the heating module 210 can be specifically used to: receive the power released by at least one battery and release the power to the energy storage module 230; after releasing the power to the energy storage module 230, receive the power released by the energy storage module 230 and release the power to at least one battery.

[0106] In other words, when at least one battery discharges to the heating module 210, the heating module 210 can transfer the received electricity to the energy storage module 230. When the heating module 210 discharges to at least one battery, the energy storage module 230 and the heating module 210 can discharge to at least one battery together, and the heating of at least one battery is achieved through the back-and-forth flow of current.

[0107] The method by which the energy storage module 230 and the heating module 210 jointly heat the battery can be referred to the description above, and will not be repeated here.

[0108] In the above technical solution, the energy storage module 230 and the heating module 210 jointly receive the electricity released by the battery, which increases the battery discharge time and reduces the battery heating frequency, making the battery heating efficiency higher and effectively shortening the battery heating time. This, in turn, greatly reduces the overall charging time of the battery and improves charging efficiency and user experience.

[0109] To enable the switching between heating the battery by the heating module 210 and charging the battery by the charging module 220 in the charging system 200, the charging system 200 may further include a switch matrix 240 connected to the heating module 210 and the charging module 220. Specifically, the charging system 200 controls the opening and closing of the switch matrix 240 to allow the heating module 210 to heat at least one battery and the charging module 220 to charge the corresponding battery.

[0110] In other words, when the temperature of at least one battery is below a temperature threshold, the charging system 200 controls the switch matrix 240 to cause the heating module 210 to heat the at least one battery; when the temperature of at least one battery is equal to or greater than the temperature threshold, the charging system 200 controls the switch matrix 240 to cause the heating module 210 to stop heating the at least one battery and causes the charging module 220 to charge the at least one battery.

[0111] The above technical solution incorporates a switch matrix 240 within the charging system 200. On one hand, by controlling the opening and closing of the switch matrix 240, the heating module 210 heats the battery when it is at a low temperature, and the charging module 220 charges the battery after heating is complete. This control is simple and easy to implement. On the other hand, after heating is complete, controlling the switch matrix 240 allows the charging system 200 to automatically switch to charging mode, resulting in a better user experience.

[0112] The switch matrix 240 may include only one switch. By controlling the closing and closing of the switch, the heating module 210 heats at least one battery and the charging module 220 charges the corresponding battery.

[0113] Alternatively, the switch matrix 240 may include at least one first switch and at least one second switch, with the first switch disposed between the heating module 210 and the plurality of batteries, and the second switch disposed between the charging module 220 and the plurality of batteries.

[0114] When the heating module 210 heats at least one battery, the first target switch of at least one first switch is in a closed state, the first switch other than the first target switch of at least one first switch is in a closed state, and the second switch is in a closed state. The first target switch is located between the heating module 210 and at least one battery. When the charging module 220 charges the corresponding battery, at least one first switch is in a closed state, the second target switch is in a closed state, and the second switch other than the second target switch of at least one second switch is in a closed state. The second target switch is located between the charging module 220 and the corresponding battery.

[0115] The way the first and second switches are closed and closed in the above technical solution allows the heating module 210 to heat the battery when the battery needs to be heated, and the charging module 220 to charge the battery when the battery needs to be charged, thus effectively ensuring the smooth operation of heating and charging.

[0116] The number of first switches can be one, and the number of second switches can also be one. For example, if the charging system 200 includes multiple charging modules 220 and multiple heating modules 210, and the heating modules 210 correspond one-to-one with the charging modules 220, then the charging system 200 may only have one first switch and one first second switch.

[0117] The number of first switches can also be multiple. For example, refer again... Figure 3 , Figure 4 and Figure 5In the case where the charging system 200 includes multiple charging modules 220 and a heating module 210, the number of first switches can be multiple, and the number of first switches is the same as the number of multiple batteries, and the number of second switches is the same as the number of multiple batteries.

[0118] from Figure 3 , Figure 4 and Figure 5 As can be seen, the number of first switches, the number of second switches, the number of multiple batteries, and the number of charging modules 220 are all the same.

[0119] The above technical solution sets the number of the first switch to be the same as the number of batteries, and sets the number of the second switch to be the same as the number of batteries. In this way, when it is necessary to heat or charge the batteries, the control complexity of the first and second switches can be reduced to a certain extent, ensuring the normal operation of heating and charging the batteries.

[0120] The following is combined with Figure 6 , Figure 7 and Figure 8 For example, the charging system 200 achieves heating and charging through the closing and closing of the switch matrix 240. Among these, Figure 6 Can correspond Figure 3 , Figure 7 Can correspond Figure 4 , Figure 8 correspond Figure 5 .

[0121] Figure 6 It includes four batteries, namely battery 1, battery 2, battery 3 and battery 4. The first switch includes K11, K12, K13 and K14, and the second switch includes K21, K22, K23 and K24. Battery 1 corresponds to the first switch K11 and the second switch K21, battery 2 corresponds to the first switch K12 and the second switch K22, battery 3 corresponds to the first switch K13 and the second switch K23, and battery 4 corresponds to the first switch K14 and the second switch K24. The first switches K11, K12, K13 and K14 are connected to the same port of the heating module 210.

[0122] Of the four batteries, batteries 1 and 2 are below their temperature thresholds. The heating sequence is to heat battery 1 first, then battery 2. The control module first closes the first switch K11 corresponding to battery 1, allowing the heating module 210 to heat battery 1. After battery 1 reaches its temperature threshold, the control module closes the first switch K11 and the first switch K12 corresponding to battery 2, allowing the heating module 210 to heat battery 2. Furthermore, after closing the first switch K11, the control module closes the second switch K21 corresponding to battery 1, allowing the charging module 220_1 connected to battery 1 to charge battery 1. After battery 2 reaches its temperature threshold, the control module closes the first switch K12 and the second switch K22, allowing the charging module 220_2 connected to battery 2 to charge battery 2. While the control module controls the first switch K11 to close, it can also control the second switch K23 corresponding to battery 3 and the second switch K24 corresponding to battery 4 to close, so that the charging module 220_3 connected to battery 3 charges battery 3, and the charging module 220_4 connected to battery 4 charges battery 4.

[0123] Figure 7 The system includes four batteries: battery 1, battery 2, battery 3, and battery 4. First switches include K11, K12, K13, and K14, and second switches include K21, K22, K23, and K24. Battery 1 corresponds to first switch K11 and second switch K21; battery 2 corresponds to first switch K12 and second switch K22; battery 3 corresponds to first switch K13 and second switch K23; and battery 4 corresponds to first switch K14 and second switch K24. First switches K11 and K12 are connected to the same port of heating module 210, and first switches K13 and K14 are also connected to the same port of heating module 210. The temperatures of batteries 1, 2, 3, and 4 are all below a temperature threshold, and based on the heating sequence, battery 1 heats before battery 2, and battery 3 heats before battery 4.

[0124] The control module first closes the first switches K11 and K13, allowing the heating module 210 to simultaneously heat batteries 1 and 3. Once battery 1 reaches its temperature threshold, the control module closes the first switch K11, exiting the heating mode, and then closes the second switch K21, allowing the charging module 220_1 to charge battery 1. Simultaneously, the control module closes the first switch K12, enabling the heating module 210 to heat battery 2. Meanwhile, the heating module 210 continues to heat battery 3. Once battery 3 reaches its temperature threshold, the control module closes the first switch K13, exiting the heating mode, and then closes the second switch K23, allowing the charging module 220_3 to charge battery 3. Finally, the control module closes the first switch K14, enabling the heating module 210 to heat battery 4.

[0125] Figure 8 The system includes four batteries: battery 1, battery 2, battery 3, and battery 4. First switches include K11, K12, K13, and K14; second switches include K21, K22, K23, and K24. Battery 1 corresponds to first switch K11 and second switch K21; battery 2 corresponds to first switch K12 and second switch K22; battery 3 corresponds to first switch K13 and second switch K23; and battery 4 corresponds to first switch K14 and second switch K24. The heating module 210 includes four ports: one port is connected to first switches K11, K12, K13, and K14; one port is connected to the negative terminal of the battery; and the other two ports are connected to the energy storage module 230.

[0126] Of the four batteries, batteries 1 and 2 are below the temperature threshold. The heating sequence is to heat battery 1 first, then battery 2. The control module first closes the first switch K11 corresponding to battery 1, so that the heating module 210 and the energy storage module 230 jointly heat battery 1. After the temperature of battery 1 reaches the temperature threshold, the control module closes the first switch K11 and closes the first switch K12 corresponding to battery 2, so that the heating module 210 and the energy storage module 230 jointly heat battery 2. Furthermore, after the control module closes the first switch K11, it closes the second switch K21 corresponding to battery 1, so that the charging module 220_1 connected to battery 1 charges battery 1. After the temperature of battery 2 reaches the temperature threshold, the control module closes the first switch K12 and closes the second switch K22, so that the charging module 220_2 connected to battery 2 charges battery 2. While the control module controls the first switch K11 to close, it can also control the second switch K23 corresponding to battery 3 and the second switch K24 corresponding to battery 4 to close, so that the charging module 220_3 connected to battery 3 charges battery 3, and the charging module 220_4 connected to battery 4 charges battery 4.

[0127] In the case where a heating module 210 is connected to multiple batteries, the control module needs to determine which batteries among the multiple batteries require heating and charging. Therefore, the control module can also be used to: determine at least one battery among the multiple batteries.

[0128] As an example, the control module can be used to receive location information indicating that at least one of the multiple batteries has a temperature below a temperature threshold, and based on the location information, control the heating module 210 to heat the at least one battery. Furthermore, if the temperature of at least one battery reaches the temperature threshold, based on the location information, control the charging module 220 connected to the at least one battery to charge the at least one battery.

[0129] Location information can be sent by the BMS of at least one battery, and may include, for example, the identifier of at least one battery. Alternatively, location information can be sent by the BMS of multiple batteries, and this location information includes the identifier of each battery and information on whether the battery needs to be heated. After receiving this location information, the control module can determine at least one battery that needs to be heated based on the location information.

[0130] The above technical solution determines at least one battery that needs to be heated based on received location information. On the one hand, determining this at least one battery through software eliminates the need for additional hardware costs, thereby reducing the cost of heating and charging the battery. On the other hand, it improves the accuracy of determining the at least one battery that needs to be heated.

[0131] The above text combined Figures 2-8 The embodiments of the charging system described in this application are described in detail below, in conjunction with... Figure 9 This application describes method embodiments. It should be understood that the method embodiments correspond to the apparatus embodiments, and similar descriptions can be found in the apparatus embodiments.

[0132] Figure 9 A schematic flowchart illustrating a charging method according to an embodiment of this application is shown. Figure 9 As shown, the charging method 300 may include the following steps.

[0133] S310: Controls a heating module connected to multiple batteries to heat at least one of the multiple batteries, wherein the temperature of at least one battery is below a temperature threshold.

[0134] S320: Controls the charging module to charge the corresponding battery among multiple batteries. Each charging module in the charging module is connected to the corresponding battery.

[0135] Optionally, in some embodiments, S310 may specifically include: controlling the closing and closing of the switch matrix to enable the heating module to heat at least one battery; S320 may specifically include: controlling the closing and closing of the switch matrix to enable the charging module to charge the corresponding battery; wherein the switch matrix is ​​connected to the heating module and the charging module.

[0136] Optionally, in some embodiments, the switch matrix includes at least one first switch and at least one second switch, wherein the at least one first switch is disposed between the heating module and the plurality of batteries, and the at least one second switch is disposed between the charging module and the plurality of batteries.

[0137] S310 may specifically include: controlling at least one first switch to close, turning off the first switch other than the first target switch, and controlling a second switch to turn off, so that the heating module heats at least one battery, and the first target switch is disposed between the heating module and at least one battery; S320 may specifically include: controlling at least one first switch to turn off, closing the second target switch, and controlling the second switch other than the second target switch to turn off, so that the charging module charges the corresponding battery, and the second target switch is disposed between the charging module and the corresponding battery.

[0138] Optionally, in some embodiments, method 300 may further include: when the heating module heats at least one battery to a temperature threshold, controlling the first target switch to switch from a closed state to an off state; S320 may specifically include: controlling the second switch corresponding to at least one battery to switch from an off state to a closed state, so that the charging module charges at least one battery.

[0139] Optionally, in some embodiments, the number of heating modules is one, and the heating module is connected to multiple batteries through the same port. S310 may specifically include: controlling the heating module to heat at least one battery in sequence based on the heating order.

[0140] Optionally, in some embodiments, the number of heating modules is one, and the heating module is connected to at least two batteries in at least one battery through different ports. S310 may specifically include: controlling the heating module to heat at least two batteries simultaneously.

[0141] Optionally, in some embodiments, when the temperature of the first battery among at least two batteries reaches a temperature threshold, S310 may specifically include: controlling the heating module to continue heating the other batteries among at least two batteries besides the first battery, and heating the battery among at least one battery that is connected to the same port of the heating module as the first battery; S320 may specifically include: controlling the charging module to charge the first battery.

[0142] Optionally, in some embodiments, S310 may specifically include: controlling a heating module and controlling an energy storage module connected to multiple batteries to jointly heat at least one battery.

[0143] Optionally, in some embodiments, the energy storage module is connected to multiple batteries through a heating module. S310 may specifically include: controlling the heating module to receive the power released by at least one battery and release the power to the energy storage module; after the heating module releases the power to the energy storage module, controlling the heating module to receive the power released by the energy storage module and release the power to at least one battery to heat at least one battery.

[0144] Optionally, in some embodiments, method 300 may further include: receiving location information, the location information being used to indicate at least one battery among a plurality of batteries whose temperature is below a temperature threshold; S310 may specifically include: controlling a heating module to heat at least one battery based on the location information; S320 may specifically include: when the temperature of at least one battery reaches the temperature threshold, controlling a charging module connected to at least one battery to charge at least one battery based on the location information.

[0145] It should be understood that Figure 9 The method 300 shown can be executed by the charging system 200 in the foregoing embodiments, and the heating module and charging module in method 300 can be the heating module 210 and charging module 220 in the charging system 200. It should be understood that... Figure 9 The steps or operations described are merely examples; other operations or procedures may also be performed in the embodiments of this application. Figure 9 Variations of various operations.

[0146] Figure 10 This is a specific flowchart for method 300. It should be understood that... Figure 10 The charging method shown is based on Figure 3 The charging system shown is in operation.

[0147] In 401, the charging gun on the charging module is physically connected to the power-consuming device.

[0148] In section 402, the control module in the charging system receives battery status parameters sent by the BMS.

[0149] The battery status parameters include the battery's temperature, state of charge (SOC), voltage, and current.

[0150] In 403, the control module determines whether to charge directly based on the battery temperature.

[0151] If the battery temperature is higher than the temperature threshold, then charging will proceed directly to steps 410, 413, and 415. If the battery temperature is lower than the temperature threshold, then heating will be performed first, proceeding to step 404.

[0152] In 404, the control module determines the battery that needs to be heated based on the location information sent by the BMS.

[0153] Specifically, the control module determines that the batteries that need to be heated are battery 1 and battery 2, that is, battery 1 and battery 2 are heated first, while battery 3 and battery 4 are charged directly.

[0154] In 405, the control module determines the heating sequence of battery 1 and battery 2.

[0155] Specifically, the control module determines that battery 1 heats up before battery 2.

[0156] In 406, the control module controls the first switch K11 connected to battery 1 to close.

[0157] In 407, the heating module heats battery 1.

[0158] In 408, after the battery 1 has finished heating, the control module controls the first switch K11 to turn off and controls the first switch K12 connected to the battery 2 to close.

[0159] In 409, the heating module heats battery 2.

[0160] In 410, the control module controls the second switch K21 connected to battery 1 to close.

[0161] In 411, the charging module 220_1 charges the battery 1.

[0162] In 412, after the battery 2 has finished heating, the control module controls the first switch K12 to turn off, so that the heating module stops heating the battery 2.

[0163] In 413, the control module controls the second switch K22 connected to battery 2 to close.

[0164] In 414, charging module 220_2 charges battery 2.

[0165] In 415, the control module controls the closing of the second switch K23 connected to battery 3 and the second switch K24 connected to battery 4.

[0166] In 416, charging module 220_3 charges battery 3 and charging module 220_4 charges battery 4.

[0167] The charging process ends once all batteries are fully charged.

[0168] Figure 11 This is another specific flowchart for method 300. It should be understood that... Figure 11 The charging method shown is based on Figure 4 The charging system shown is in operation.

[0169] In 501, the charging gun on the charging module is physically connected to the power-consuming device.

[0170] In 502, the control module in the charging system receives battery status parameters sent by the BMS.

[0171] The battery status parameters include the battery's temperature, state of charge (SOC), voltage, and current.

[0172] In the 503, the control module determines whether to charge directly based on the battery temperature.

[0173] If the battery temperature is higher than the temperature threshold, then charging will proceed directly to steps 510, 514, 517, and 520. If the battery temperature is lower than the temperature threshold, then heating will be performed first, and the process will proceed to step 504.

[0174] In 504, the control module determines at least one battery that needs to be heated based on the location information sent by the BMS.

[0175] Specifically, the control module determines that all batteries need to be heated first.

[0176] In 505, the control module determines the heating sequence of battery 1 and battery 2, as well as the heating sequence of battery 3 and battery 4.

[0177] Specifically, the control module determines that battery 1 heats up before battery 2, and battery 3 heats up before battery 4.

[0178] In 506, the control module controls the closure of the first switch K11 connected to battery 1 and the first switch K13 connected to battery 3.

[0179] In 507, the heating module heats both battery 1 and battery 3 simultaneously.

[0180] In 508, after the battery 1 has finished heating, the control module controls the first switch K11 to turn off and controls the first switch K12 connected to the battery 2 to close.

[0181] In step 509, the heating module stops heating battery 1 and starts heating battery 2.

[0182] Meanwhile, the heating module continues to heat battery 3.

[0183] In 510, the control module controls the second switch K21 connected to battery 1 to close.

[0184] In 511, charging module 220_1 charges battery 1.

[0185] In 512, after the battery 3 has finished heating, the control module controls the first switch K13 to turn off and controls the first switch K14 connected to the battery 4 to close.

[0186] In 513, the heating module stops heating battery 3 and starts heating battery 4.

[0187] In 514, the control module controls the second switch K23 connected to battery 3 to close.

[0188] In 515, charging module 220_3 charges battery 3.

[0189] In 516, after the battery 2 has finished heating, the control module controls the first switch K12 to turn off, so that the heating module stops heating the battery 2.

[0190] In 517, the control module controls the second switch K22 connected to battery 2 to close.

[0191] In 518, charging module 220_2 charges battery 2.

[0192] In 519, after the battery 4 has finished heating, the control module controls the first switch K14 to turn off, so that the heating module stops heating the battery 4.

[0193] In 520, the control module controls the second switch K24, which is connected to battery 4, to close.

[0194] In 521, charging module 220_4 charges battery 4.

[0195] The charging process ends once all batteries are fully charged.

[0196] It should be understood that Figure 10 and Figure 11 This is merely intended to help those skilled in the art better understand the embodiments of this application, and is not intended to limit the scope of the embodiments of this application.

[0197] Figure 12 This is a schematic diagram of the hardware structure of a charging system 600 according to an embodiment of this application. The charging system 600 includes a memory 601, a processor 602, a communication interface 603, and a bus 604. The memory 601, processor 602, and communication interface 603 are interconnected via the bus 604.

[0198] The memory 601 may be a read-only memory (ROM), a static storage device, or a random access memory (RAM). The memory 601 may store a program, and when the program stored in the memory 601 is executed by the processor 602, the processor 602 and the communication interface 603 are used to execute the various steps of the charging method of the embodiments of this application.

[0199] The processor 602 may be a general-purpose central processing unit (CPU), microprocessor, application-specific integrated circuit (ASIC), graphics processing unit (GPU), or one or more integrated circuits, for executing relevant programs to achieve the functions required by the units in the apparatus of this application embodiment, or to execute the charging method of this application embodiment.

[0200] The processor 602 can also be an integrated circuit chip with signal processing capabilities. In implementation, each step of the charging method in this embodiment can be completed by the integrated logic circuitry in the processor 602 or by software instructions.

[0201] The processor 602 described above can also be a general-purpose processor, a digital signal processor (DSP), an ASIC, a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly implemented by the hardware processor, or implemented by a combination of hardware and software modules in the processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory 601. The processor 602 reads the information in memory 601 and, in conjunction with its hardware, completes the functions required by the units included in the charging system 600 of the embodiments of this application, or executes the charging method of the embodiments of this application.

[0202] The communication interface 603 uses a transceiver device, such as, but not limited to, a transceiver, to enable communication between the charging system 600 and other devices or communication networks.

[0203] Bus 604 may include a pathway for transmitting information between various components of charging system 600 (e.g., memory 601, processor 602, communication interface 603).

[0204] It should be noted that although the charging system 600 described above only shows a memory, processor, and communication interface, those skilled in the art should understand that in specific implementations, the charging system 600 may also include other devices necessary for normal operation. Furthermore, depending on specific needs, those skilled in the art should understand that the charging system 600 may also include hardware devices for implementing other additional functions. Moreover, those skilled in the art should understand that the charging system 600 may only include the devices necessary for implementing the embodiments of this application, and may not necessarily include... Figure 12 All the devices shown.

[0205] This application also provides a computer-readable storage medium for storing a computer program for performing the methods described in the various embodiments of this application.

[0206] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0207] This application also provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions that, when executed by a computer, cause the computer to perform the charging method described above.

[0208] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0209] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A charging system, characterized in that, The charging system includes: A heating module is connected to a plurality of batteries to heat at least one of the plurality of batteries, wherein the temperature of the at least one battery is below a temperature threshold. A charging module, wherein each charging module is connected to a corresponding battery among the plurality of batteries to charge the corresponding battery.

2. The charging system according to claim 1, characterized in that, The charging system also includes a switch matrix, which is connected to the heating module and the charging module; The charging system controls the opening and closing of the switch matrix to enable the heating module to heat at least one battery and the charging module to charge the corresponding battery.

3. The charging system according to claim 2, characterized in that, The switch matrix includes at least one first switch and at least one second switch, wherein the at least one first switch is disposed between the heating module and the plurality of batteries, and the at least one second switch is disposed between the charging module and the plurality of batteries; Wherein, when the heating module heats the at least one battery, the first target switch of the at least one first switch is in a closed state, the first switch other than the first target switch of the at least one first switch is in a closed state, and the second switch is in a closed state, and the first target switch is disposed between the heating module and the at least one battery; When the charging module charges the corresponding battery, the at least one first switch is in the off state, the second target switch of the at least one second switch is in the closed state, and the second switch other than the second target switch of the at least one second switch is in the off state. The second target switch is disposed between the charging module and the corresponding battery.

4. The charging system according to claim 3, characterized in that, The number of the at least one first switch is the same as the number of the plurality of batteries, and the number of the at least one second switch is the same as the number of the plurality of batteries.

5. The charging system according to any one of claims 1 to 4, characterized in that, The charging system includes one of the heating modules.

6. The charging system according to claim 5, characterized in that, The heating module is connected to the plurality of batteries through the same port, so as to heat at least one battery sequentially through the port.

7. The charging system according to claim 5, characterized in that, The heating module is connected to at least two of the at least one battery through different ports, so as to simultaneously heat the at least two batteries through the ports respectively connected to the at least two batteries.

8. The charging system according to any one of claims 1 to 7, characterized in that, The charging system also includes: An energy storage module is connected to the plurality of batteries to work together with the heating module to heat at least one battery.

9. A charging method, characterized in that, The method includes: A heating module connected to multiple batteries is controlled to heat at least one of the multiple batteries, wherein the temperature of the at least one battery is below a temperature threshold. The charging module controls the charging of the corresponding battery among the plurality of batteries, and each charging module is connected to the corresponding battery.

10. The method according to claim 9, characterized in that, The control module connected to the plurality of batteries heats at least one of the plurality of batteries, including: The control switch matrix is ​​closed and closed to allow the heating module to heat the at least one battery; The control charging module charges the corresponding battery among the plurality of batteries, including: The control switch matrix is ​​closed and closed to enable the charging module to charge the corresponding battery; The switch matrix is ​​connected to the heating module and the charging module.

11. The method according to claim 10, characterized in that, The switch matrix includes at least one first switch and at least one second switch, wherein the at least one first switch is disposed between the heating module and the plurality of batteries, and the at least one second switch is disposed between the charging module and the plurality of batteries; The closing and closing of the control switch matrix enables the heating module to heat the at least one battery, including: The heating module controls the first target switch of the at least one first switch to close, the first switch of the at least one first switch other than the first target switch to close, and controls the second switch to close, so that the heating module heats the at least one battery, and the first target switch is disposed between the heating module and the at least one battery; The closing and closing of the control switch matrix enables the charging module to charge the corresponding battery, including: The charging module controls the at least one first switch to turn off, the second target switch of the at least one second switch to close, and controls the second switch of the at least one second switch other than the second target switch to turn off, so that the charging module charges the corresponding battery, and the second target switch is disposed between the charging module and the corresponding battery.

12. The method according to claim 11, characterized in that, The method further includes: When the heating module heats the at least one battery to the temperature threshold, the first target switch is controlled to switch from the closed state to the off state. The closing and closing of the control switch matrix enables the charging module to charge the corresponding battery, including: The second switch corresponding to the at least one battery is controlled to switch from an off state to a closed state so that the charging module can charge the at least one battery.

13. The method according to any one of claims 9 to 12, characterized in that, The number of heating modules is one, and the heating module is connected to the plurality of batteries through the same port. The control of the heating module connected to the plurality of batteries to heat at least one of the plurality of batteries includes: Based on the heating sequence, the heating module is controlled to heat at least one battery sequentially.

14. The method according to any one of claims 9 to 12, characterized in that, The number of heating modules is one, and the heating module is connected to at least two of the at least one battery through different ports. The control of the heating module connected to the multiple batteries to heat at least one of the multiple batteries includes: The heating module is controlled to heat at least two of the batteries simultaneously.

15. The method according to claim 14, characterized in that, When the temperature of the first battery among the at least two batteries reaches the temperature threshold, the control of the heating module connected to the plurality of batteries to heat at least one of the plurality of batteries includes: The heating module is controlled to continue heating the batteries other than the first battery among the at least two batteries, and to heat the battery among the at least one batteries that is connected to the same port of the heating module as the first battery; The control charging module charges the corresponding battery among the plurality of batteries, including: The charging module is controlled to charge the first battery.

16. The method according to any one of claims 9 to 15, characterized in that, The control module connected to the plurality of batteries heats at least one of the plurality of batteries, including: The heating module and the energy storage module connected to the plurality of batteries are controlled to heat the at least one battery.

17. The method according to claim 16, characterized in that, The energy storage module is connected to the plurality of batteries through the heating module. Controlling the heating module and the energy storage module connected to the plurality of batteries to jointly heat at least one battery includes: The heating module is controlled to receive the electrical energy released by at least one battery and to release the electrical energy to the energy storage module; After the heating module releases electricity to the energy storage module, the heating module is controlled to receive the electricity released by the energy storage module and release electricity to the at least one battery to heat the at least one battery.

18. The method according to any one of claims 9 to 17, characterized in that, The method further includes: Receive location information, the location information being used to indicate at least one of the plurality of batteries whose temperature is below the temperature threshold; The control module connected to the plurality of batteries heats at least one of the plurality of batteries, including: Based on the location information, the heating module is controlled to heat the at least one battery; The control charging module charges the corresponding battery among the plurality of batteries, including: When the temperature of at least one battery reaches the temperature threshold, the charging module connected to the at least one battery is controlled to charge the at least one battery based on the location information.

19. A charging system, characterized in that, include: Memory, used to store programs; A processor for executing a program stored in the memory, wherein when the program is executed, the processor is configured to perform a charging method as described in any one of claims 9 to 18.

20. A computer-readable storage medium, characterized in that, Used to store a computer program that causes the computer to perform the charging method as described in any one of claims 9 to 18.

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