Charging system and charging method

Abstract

A charging system and a charging method, which can effectively improve the performance of low-temperature charging of batteries. The charging system comprises: a heating module (210), connected to a plurality of batteries (121) so as to heat at least one battery of the plurality of batteries, the temperature of the at least one battery being lower than a temperature threshold; and charging modules (220), each of the charging modules being connected to a corresponding battery of the plurality of batteries, so as to charge the corresponding battery.

Description

Charging system and method of charging Cross-reference to related applications

[0001] This application claims priority to Chinese Patent Application No. 202411726062.0, filed on November 28, 2024, entitled “Charging system and method of charging”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of batteries, in particular to a charging system and a method of charging. BACKGROUND

[0003] With the aggravation of energy shortage and environmental pollution in modern society, electric vehicles have been widely concerned by all walks of life since they were introduced as new energy vehicles. However, the charging problem has been the main factor limiting their development.

[0004] Therefore, how to ensure the normal charging of electric vehicles is a problem to be solved. SUMMARY

[0005] The embodiments of the present application provide a charging system and a method of charging, which can effectively improve the performance of battery low-temperature charging.

[0006] 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 battery in the plurality of batteries, wherein the temperature of the at least one battery is lower than a temperature threshold; a charging module, each charging module in the charging module being connected to a corresponding battery in the plurality of batteries to charge the corresponding battery.

[0007] In the embodiments of the present application, by providing a heating module and a charging module connected to a plurality of batteries in the charging system, the heating module can heat the part of the batteries when the temperature of the part of the batteries is lower than the temperature threshold, and the charging module can charge the corresponding battery. On the one hand, the purpose of charging the battery at low temperature is achieved, that is, the performance of battery low-temperature charging is improved. On the other hand, since the heating module and the charging module are integrated in one charging system, the charging system can automatically switch to the charging mode after heating is completed, which improves the charging efficiency and provides a good user experience. On the other hand, the heating module is connected to a plurality of batteries, so that the heating module can heat a plurality of batteries at the same time in a specific scenario, which effectively improves the heating efficiency and charging efficiency of the battery.

[0008] In some possible implementation manners, the charging system further includes a switch matrix connected with the heating module and the charging module; and the charging system controls the switch matrix to be closed and turned off, so that the heating module heats the at least one battery and the charging module charges the corresponding battery.

[0009] The above technical solution provides the switch matrix in the charging system. On one hand, by controlling the closing and turning off of the switch matrix, the heating module can heat the battery when the battery is in a low-temperature state, and the charging module can charge the battery after the heating is completed, which is simple to control and easy to implement. On the other hand, the charging system can be automatically switched to the charging mode by controlling the switch matrix after the heating is completed, which is good for user experience.

[0010] In some possible implementation manners, the switch matrix includes at least one first switch and at least one second switch, the at least one first switch is arranged between the heating module and the plurality of batteries, and the at least one second switch is arranged between the charging module and the plurality of batteries. In the case that the heating module heats the at least one battery, a first target switch in the at least one first switch is in a closed state, other first switches in the at least one first switch except the first target switch are in a turned-off state, and the second switch is in the turned-off state. The first target switch is arranged between the heating module and the at least one battery. In the case that the charging module charges the corresponding battery, the at least one first switch is in the turned-off state, a second target switch in the at least one second switch is in the closed state, and other second switches in the at least one second switch except the second target switch are in the turned-off state. The second target switch is arranged between the charging module and the corresponding battery.

[0011] In the above technical solution, the closing and turning off of the first switch and the second switch are set in such a manner that the heating module can heat the battery by controlling the first switch when the battery needs to be heated, and the charging module can charge the battery by controlling the second switch when the battery needs to be charged, thereby effectively ensuring the smooth heating and charging.

[0012] In some possible implementation manners, 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.

[0013] The number of the first switches is set to be the same as the number of the plurality of batteries, and the number of the second switches is set to be the same as the number of the plurality of batteries, so that the control complexity of the first switches and the second switches can be reduced to a certain extent in the case of heating or charging the batteries, and the normal heating and charging of the batteries are ensured.

[0014] In some possible implementation manners, the charging system comprises one heating module, so that the cost of heating the batteries can be effectively reduced, and the performance of low-temperature charging of the batteries can be improved at a smaller cost.

[0015] In some possible implementation manners, the heating module is connected to the plurality of batteries through the same port, and the at least one battery is heated through the port in sequence.

[0016] The heating module is connected to the plurality of batteries through the same port, so that the number of ports of the heating module is reduced, the volume of the heating module is reduced, and the volume of the charging system is reduced. Further, the heating module heats the at least one battery in sequence, so that the probability of short circuit is reduced, and the heating of the batteries is ensured to be performed in sequence.

[0017] In some possible implementation manners, the heating module is connected to at least two batteries in the at least one battery through different ports, and the at least two batteries are heated through the ports connected to the at least two batteries respectively.

[0018] The at least two batteries in the at least one battery are connected to different ports of the heating module, so that the heating module can heat the batteries connected to the different ports at the same time, the temperature rising efficiency of the batteries is improved, the heating time of the batteries is effectively shortened, the entire charging time of the batteries is greatly reduced, and the charging efficiency and user experience are improved.

[0019] In some possible implementation manners, the charging system further comprises an energy storage module connected to the plurality of batteries, to heat the at least one battery together with the heating module.

[0020] The energy storage module and the heating module are arranged in the charging system, and the energy storage module and the heating module heat the batteries together, so that the heating efficiency of the batteries is effectively improved.

[0021] In a second aspect, a method of charging is provided. The method comprises: controlling a heating module connected to a plurality of batteries to heat at least one battery of the plurality of batteries, wherein a temperature of the at least one battery is lower than a temperature threshold; and controlling a charging module to charge a corresponding battery of the plurality of batteries, each of the charging modules being connected to a corresponding battery.

[0022] In some possible implementations, the controlling the heating module connected to the plurality of batteries to heat the at least one battery of the plurality of batteries comprises: controlling closing and opening of a switch matrix to cause the heating module to heat the at least one battery; and the controlling the charging module to charge the corresponding battery of the plurality of batteries comprises: controlling closing and opening of the 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.

[0023] In some possible implementations, the switch matrix comprises 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; the controlling closing and opening of the switch matrix to cause the heating module to heat the at least one battery comprises: controlling a first target switch of the at least one first switch to close, controlling other first switches of the at least one first switch to open, and controlling the second switch to open, such that the heating module heats the at least one battery, the first target switch being disposed between the heating module and the at least one battery; and the controlling closing and opening of the switch matrix to cause the charging module to charge the corresponding battery comprises: controlling the at least one first switch to open, controlling a second target switch of the at least one second switch to close, and controlling other second switches of the at least one second switch to open, such that the charging module charges the corresponding battery, the second target switch being disposed between the charging module and the corresponding battery.

[0024] In some possible implementations, the method further comprises: in a case where 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 an open state; and the controlling closing and opening of the switch matrix to cause the charging module to charge the corresponding battery comprises: controlling the second switch corresponding to the at least one battery to switch from the open state to the closed state, such that the charging module charges the at least one battery.

[0025] In some possible implementation manners, the number of the heating modules is one, the heating module is connected to the plurality of batteries through the same port, and the control of the heating module heating at least one battery in the plurality of batteries comprises: controlling the heating module to heat the at least one battery in sequence based on a heating sequence.

[0026] In some possible implementation manners, the number of the heating modules is one, the heating module is connected to at least two batteries in the at least one battery through different ports, and the control of the heating module heating at least one battery in the plurality of batteries comprises: controlling the heating module to heat the at least two batteries at the same time.

[0027] In some possible implementation manners, in a case where the temperature of a first battery in the at least two batteries reaches the temperature threshold, the control of the heating module heating at least one battery in the plurality of batteries comprises: controlling the heating module to continue heating other batteries in the at least two batteries except the first battery, and heating a battery in the at least one battery that is connected to the same port as the first battery to the heating module; and the control of the charging module charging the corresponding battery in the plurality of batteries comprises: controlling the charging module to charge the first battery.

[0028] The above technical solution, after the temperature of part of the batteries in the at least two batteries reaches the temperature threshold, the heating module continues to heat other batteries in the at least two batteries that are connected to different ports of the heating module from the part of the batteries, and heats a battery in the at least one battery that is connected to the same port of the heating module as the battery, without waiting for all the batteries heated at the same time to be heated to completion before heating other batteries, greatly shortening the heating time and improving the heating efficiency.

[0029] In some possible implementation manners, the control of the heating module heating at least one battery in the plurality of batteries comprises: controlling the heating module and a control of an energy storage module connected to the plurality of batteries to jointly heat the at least one battery.

[0030] In some possible implementation manners, the energy storage module is connected to the plurality of batteries through the heating module, and the control of the heating module and the control of the energy storage module connected to the plurality of batteries jointly heat the at least one battery, including: controlling the heating module to receive the electric quantity released by the at least one battery and release the electric quantity to the energy storage module; after the heating module releases the electric quantity to the energy storage module, controlling the heating module to receive the electric quantity released by the energy storage module and release the electric quantity to the at least one battery to heat the at least one battery.

[0031] The above technical solution jointly receives the electric quantity released by the battery by the energy storage module and the heating module, increases the discharging time of the battery, reduces the heating frequency of the battery, makes the heating efficiency of the battery higher, effectively shortens the heating time of the battery, and further greatly reduces the entire charging time of the battery, and improves the charging efficiency and user experience.

[0032] In some possible implementation manners, the method further includes: receiving position information, the position information being used to indicate the at least one battery in the plurality of batteries whose temperature is lower than the temperature threshold; and the control of the heating module connected to the plurality of batteries to heat the at least one battery in the plurality of batteries includes: based on the position information, controlling the heating module to heat the at least one battery; and the control of the charging module to charge the corresponding battery in the plurality of batteries includes: in a case where the temperature of the at least one battery reaches the temperature threshold, based on the position information, controlling the charging module connected to the at least one battery to charge the at least one battery.

[0033] The above technical solution determines the at least one battery that needs to be heated by the received position information. On one hand, the at least one battery is determined by software, without the need of additional hardware cost, thereby reducing the cost of battery heating and charging. On the other hand, the accuracy of the determined at least one battery that needs to be heated can be improved.

[0034] In a third aspect, a charging method is provided, including a processor and a memory, the memory is used to store a computer program, and the processor is used to invoke the computer program to execute the method in the second aspect or each implementation manner thereof.

[0035] In a fourth aspect, a computer readable storage medium is provided, used to store a computer program, which causes a computer to execute the method in the second aspect or each implementation manner thereof. BRIEF DESCRIPTION OF DRAWINGS

[0036] FIG. 1 shows an architecture diagram of a charging scene to which an embodiment of the present application is applicable.

[0037] FIG. 2 shows a schematic diagram of a charging system according to an embodiment of the present application.

[0038] FIG. 3 shows a schematic diagram of a specific charging system according to an embodiment of the present application.

[0039] FIG. 4 shows a schematic diagram of another specific charging system according to an embodiment of the present application.

[0040] FIG. 5 shows a schematic diagram of yet another specific charging system according to an embodiment of the present application.

[0041] FIG. 6 shows a schematic diagram of still another specific charging system according to an embodiment of the present application.

[0042] FIG. 7 shows a schematic diagram of yet another specific charging system according to an embodiment of the present application.

[0043] FIG. 8 shows a schematic diagram of still another specific charging system according to an embodiment of the present application.

[0044] FIG. 9 shows a schematic flowchart of a charging method according to an embodiment of the present application.

[0045] FIG. 10 shows a flowchart of a specific charging method according to an embodiment of the present application.

[0046] FIG. 11 shows a flowchart of another specific charging method according to an embodiment of the present application.

[0047] FIG. 12 shows a schematic block diagram of a charging system according to an embodiment of the present application. DETAILED DESCRIPTION

[0048] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0049] 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 belongs; the terminology used in the specification herein is for describing particular embodiments only and is not intended to be limiting of the application; the use of the terms "include," "includes," "including," "have," "has," "having," or variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms "first," "second," and the like, as used herein do not have any specific meaning, and are used only to distinguish one element from another.

[0050] The orientation words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the present application. In the description of the present application, it should be further pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the present application, the term "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0052] In the present application, "multiple" refers to more than two (including two), similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0053] In the field of new energy, batteries, as the main power source of electric devices such as motor vehicles, ships or spacecraft, or as energy storage devices, are of great importance. Among them, the temperature of the battery has a great influence on its performance, life and safety. At present, the batteries on the market are mostly rechargeable storage batteries, commonly known as lithium-ion batteries or lithium-ion polymer batteries. At low temperatures, lithium-ion batteries will have increased internal resistance and reduced capacity. In extreme cases, it can cause electrolyte freezing, battery discharge failure and other situations, and the low-temperature performance of the battery is greatly affected, resulting in the attenuation of the power output performance of the automobile and the reduction of the cruising range. Further, direct current charging of lithium-ion batteries at low temperatures can cause lithium precipitation. Lithium precipitation not only reduces the performance of lithium batteries and greatly shortens the cycle life, but also limits the fast-charging capacity of the battery.

[0054] In view of this, the embodiment of the present application proposes a charging system, which comprises a heating module and a charging module. The heating module is connected to a plurality of batteries to heat at least one battery in the plurality of batteries, wherein the temperature of the at least one battery is lower than a temperature threshold. Each charging module in the charging module is connected to a corresponding battery in the plurality of batteries to charge the corresponding battery. In the embodiment of the present application, the heating module and the charging module connected to the plurality of batteries are arranged in the charging system. When the temperature of part of the batteries is lower than the temperature threshold, the heating module can heat the part of the batteries, and the charging module can charge the corresponding battery. On the one hand, the purpose of charging the battery at low temperature is achieved, that is, the low-temperature charging performance of the battery is improved. On the other hand, since the heating module and the charging module are integrated in one charging system, the charging system can automatically switch to the charging mode after heating is completed, the charging efficiency is improved, and the user experience is good. On the other hand, the heating module is connected to the plurality of batteries. In this way, the purpose of simultaneously heating the plurality of batteries by the heating module can be achieved in a specific scenario, and the heating efficiency and the charging efficiency of the battery are effectively improved.

[0055] FIG. 1 shows an architecture diagram of a charging scenario to which the embodiment of the present application is applicable.

[0056] The charging scenario shown in FIG. 1 can include a charging system 110 and a battery system 120. Optionally, the battery system 120 can be a battery system in an electric vehicle (including a pure electric vehicle and a plug-in hybrid electric vehicle).

[0057] At least one battery pack can be arranged in the battery system 120, and the whole of the at least one battery pack can be collectively referred to as a battery 121. From the type of the battery, the battery 121 can be any type of battery, including but not limited to a lithium ion battery, a lithium metal battery, a lithium sulfur battery, a lead-acid battery, a nickel-separation battery, a nickel-hydrogen battery, or a lithium-air battery, etc. From the scale of the battery, the battery 121 in the embodiment of the present application can be a cell / battery monomer, or a battery module or a battery pack, and the battery module or the battery pack can be formed by a plurality of batteries in series and / or in parallel. In the embodiment of the present application, the specific type and scale of the battery 121 are not limited.

[0058] In addition, in order to intelligently manage and maintain the battery 121, prevent overcharging and over-discharging of the battery, and prolong the service life of the battery, a battery management system (BMS) 122 is generally arranged in the battery system 120 to monitor the state of the battery 121. Optionally, the BMS 122 can be integrated with the battery 121 in the same device / apparatus, or the BMS 122 can be arranged outside the battery 121 as an independent device / apparatus.

[0059] The charging system 110 is a device for supplementing the electric energy of 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 charging machine), which can be a common charging pile, a super charging pile, a charging pile supporting a vehicle to grid (V2G) mode, etc.

[0060] Optionally, as shown in FIG. 1, the charging system 110 can be connected to the battery 121 through a wire 130 and connected to the BMS 122 through a communication line 140, where the communication line 140 is used to realize information interaction between the charging system 110 and the BMS. As an example, the communication line 140 includes but is not limited to a control area network (CAN) communication bus or a daisy chain communication bus.

[0061] In addition to the communication between the charging system 110 and the BMS 122 through the communication line 140, the charging system 110 can also communicate with the BMS 122 through a wireless network. The embodiments of the present application do not make specific limitations on the wired communication type or the wireless communication type between the charging system 110 and the BMS 122.

[0062] FIG. 2 shows a schematic diagram of a charging system according to an embodiment of the present application. The charging system can be the charging system 110 in FIG. 1, for example.

[0063] As shown in FIG. 2, the charging system 200 can 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 battery in the plurality of batteries, the temperature of the at least one battery being lower than a temperature threshold. Each charging module 220 in the charging module 220 is connected to a corresponding battery in the plurality of batteries to charge the corresponding battery.

[0064] In the embodiment of the present application, the heating module 210 connected to the plurality of batteries and the charging module 220 are arranged in the charging system 200, so that the heating module 210 can heat the part of the batteries when the temperature of the part of the batteries is lower than the temperature threshold, and the charging module 220 can charge the corresponding battery. On the one hand, the purpose of charging the battery at low temperature is achieved, that is, the low-temperature charging performance of the battery is improved. On the other hand, since the heating module 210 and the charging module 220 are integrated in one charging system 200, the charging system 200 can automatically switch to the charging mode after heating is completed, the charging efficiency is improved, and the user experience is good. On the other hand, the heating module 210 is connected to the plurality of batteries, so that the heating module 210 can heat the plurality of batteries at the same time in a specific scenario, effectively improving the heating efficiency and charging efficiency of the battery.

[0065] In the case that the heating module 210 heats the temperature of at least one battery to the temperature threshold, the charging module 220 corresponding to the at least one battery can charge the at least one battery. The charging module 220 can charge the battery according to the battery state parameter of the battery. The battery state parameter can include, but is not limited to, at least one of the following parameters of the battery: temperature, voltage, capacity, and state of charge (SOC).

[0066] Further, the charging system 200 can further include a control module, which can obtain the battery state parameter of the battery, so that the charging module 220 charges the battery according to the battery state parameter. As an example, the BMS of the battery can send the battery state parameter to the control module. The BMS can be, for example, the BMS 122 in FIG. 1. As another example, the BMS can store the battery state parameter to the cloud, and the control module can obtain the battery state parameter from the cloud.

[0067] The charging system 200 can include only one control module, or can include a plurality of control modules, for example, the number of control modules can be the same as the number of charging modules 220.

[0068] Suppose the battery state parameter includes the temperature of the battery, after the control module obtains the temperature of the battery, it can determine whether to heat or charge the battery according to the temperature of the battery. Assuming that the temperature threshold is 5℃, if the temperature of the battery is 3℃, it can be determined to heat the battery first; if the temperature of the battery is 8℃, it can be determined to directly charge the battery.

[0069] Alternatively, the BMS can determine by itself whether the temperature of the battery is less than or equal to the temperature threshold value, and if the temperature is less than or equal to the temperature threshold value, the BMS can send a heating request information to the control module, the heating request information being used to request heating of the battery. If the temperature is greater than the temperature threshold value, the BMS can send a charging request information to the control module, the charging request information being used to request charging of the battery.

[0070] The temperature threshold value can be any preset value indicating that the battery is in a low temperature state, and the temperature threshold value can be set according to relevant factors such as the geographical location of the battery, the type of the battery, the attribute parameters, and the system architecture in which the battery is located, and the specific value of the temperature threshold value is not limited in the embodiments of the present application. As an example, the temperature threshold value can be any value less than 10 degrees Celsius (℃), for example, the temperature threshold value can be 5℃.

[0071] 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-direct current (DC) converter.

[0072] Optionally, the heating module 210 can heat the battery in a pulse heating manner.

[0073] Specifically, the heating module 210 can output a pulse current to the battery according to the heating parameter sent by the battery, and the pulse current is used to heat the battery. The heating parameter can include at least one of the following parameters: heating frequency, heating amplitude, heating voltage, and heating current.

[0074] The heating parameter can be carried in the same message as the battery state parameter. Alternatively, after the control module determines that the battery needs to be heated, the control module can send a heating confirmation information to the battery, the heating confirmation information being used to feed back to the battery that the battery is confirmed to be heated. Then, the battery can send the heating parameter to the control module.

[0075] The above technical solution enables the heating module 210 to heat the battery in a pulse manner according to the heating parameter 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.

[0076] Optionally, the number of the heating module 210 can be the same as the number of the charging module 220, that is, the heating module 210 corresponds to the charging module 210 one-to-one. This setting manner can reduce the control complexity of heating the battery.

[0077] Alternatively, the number of heating modules 210 can be less than the number of charging modules 220. For example, the charging system 200 can include a plurality of charging modules 220 and one heating module 210. In this way, the cost of heating the battery can be effectively reduced, so that the performance of low-temperature charging of the battery can be improved at a smaller cost.

[0078] In the case where the charging system 200 includes only one heating module 210, as shown in FIG. 3, one port of each of the plurality of batteries can be connected to the same port of the heating module 210, i.e., the heating module 210 is connected to the plurality of batteries through the same port.

[0079] Referring again to FIG. 3, the heating module 210 includes two ports, one of the two ports is connected to four batteries, and the other of the two ports is connected to the negative electrode of the charging module 220 and the negative electrode of the battery.

[0080] The above technical solution, one port of each of the plurality of 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 volume of the heating module 210, and further reducing the volume of the charging system 200.

[0081] In some scenarios, there can be a case where the number of at least one battery is greater than 1, i.e., more than one battery needs to be heated. In the case where the heating module 210 is connected to the plurality of batteries through the same port, if the at least one battery is heated at the same time, a short circuit may occur.

[0082] Therefore, the heating module 210 can be specifically configured to sequentially heat the plurality of batteries based on a heating sequence. In other words, the heating module 210 sequentially heats the at least one battery through the same port connected to the plurality of batteries.

[0083] The heating sequence can be determined by the control module or the heating module 210.

[0084] For example, the control module can randomly determine the heating sequence in the at least one battery, or determine the heating sequence according to the order in which the battery accesses the charging system 200.

[0085] For another example, the control module can determine the heating sequence according to the order in which the temperature of the at least one battery is obtained. For example, the at least one battery includes battery 1, battery 2 and battery 3, the control module first obtains the temperature of battery 2, then obtains the temperature of battery 3, and finally obtains the temperature of battery 1, so the heating sequence is in turn: battery 2, battery 3 and battery 1.

[0086] For example, the smaller the SOC, the earlier the heating, and the larger the SOC, the later the heating.

[0087] For example, the smaller the SOC, the earlier the heating, and the larger the SOC, the later the heating.

[0088] The above technical solution can reduce the probability of short circuit and ensure the orderly heating of the battery when more than one battery needs to be heated.

[0089] In some other embodiments, the heating module 210 can be connected to at least two batteries in the at least one battery through different ports to heat the at least two batteries through the ports connected to the at least two batteries respectively.

[0090] Referring again to FIG. 4, the heating module 210 includes four ports, and the battery 1 and the battery 2 are connected to the same port of the heating module 210, and the battery 3 and the battery 4 are connected to the same port of the heating module 210.

[0091] The at least two batteries are connected to different ports of the heating module 210, so that the heating module 210 can heat the batteries connected to different ports at the same time, improve the temperature rise efficiency of the battery, and thus effectively shorten the heating time of the battery, greatly reduce the entire charging time of the battery, and improve the charging efficiency and user experience.

[0092] Since the batteries connected to different ports of the heating module 210 are heated at the same time, short circuit will not occur. Therefore, in order to improve the heating efficiency, when the temperature of the at least two batteries connected to different ports of the heating module 210 is lower than the temperature threshold, the heating module 210 can be specifically configured to heat the at least two batteries at the same time.

[0093] The above technical solution can reduce the probability of short circuit and ensure the orderly heating of the battery when more than one battery needs to be heated.

[0094] 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.

[0095] Regarding batteries connected to the same port of the heating module 210, such as battery 1 and battery 2 in Figure 4, or battery 3 and battery 4 in Figure 4, the heating module 210 can heat battery 1 and battery 2 based on the heating sequence, or heat battery 3 and battery 4 based on the heating sequence.

[0096] 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.

[0097] Referring again to Figure 4, batteries 1 and 2 are connected to the same port of heating module 210, as are batteries 3 and 4. If the temperatures of batteries 1, 2, 3, and 4 are all below the 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 the 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 the temperature threshold, battery 3 exits the heating mode, and battery 4 enters the heating mode, where heating module 210 heats battery 4.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] To further improve heating efficiency, thereby increasing charging speed and user experience, the heating current frequency can be reduced. As shown in Figure 5, the charging system 200 may also 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.

[0102] 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.

[0103] 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.

[0104] Alternatively, the energy storage module 230 can be an energy storage element such as an inductor or a capacitor.

[0105] The energy storage module 230 can be directly connected to multiple batteries, or as shown in Figure 5, it can be connected to multiple batteries through the heating module 210.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] The number of first switches can also be multiple. For example, referring again to Figures 3, 4 and 5, when 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.

[0119] As can be seen from Figures 3, 4 and 5, 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.

[0120] 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.

[0121] The following examples, using Figures 6, 7, and 8, illustrate the technical solution by which the charging system 200 achieves heating and charging through the closing and closing of the switch matrix 240. Figure 6 corresponds to Figure 3, Figure 7 to Figure 4, and Figure 8 to Figure 5.

[0122] Figure 6 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.

[0123] 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.

[0124] Figure 7 shows four batteries: battery 1, battery 2, battery 3, and battery 4. The first switches include K11, K12, K13, and K14, and the second switches include 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 and K12 are connected to the same port of the heating module 210, and the first switches K13 and K14 are also connected to the same port of the 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.

[0125] 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.

[0126] Figure 8 includes four batteries: battery 1, battery 2, battery 3, and battery 4. The first switches include K11, K12, K13, and K14, and the second switches include 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 heating module 210 includes four ports: one port is connected to the 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.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] The charging system embodiments of this application have been described in detail above with reference to Figures 2-8. The method embodiments of this application are described below with reference to Figure 9. It should be understood that the method embodiments correspond to the device embodiments, and similar descriptions can be found in the device embodiments.

[0133] Figure 9 shows a schematic flowchart of a charging method according to an embodiment of this application. As shown in Figure 9, the charging method 300 may include the following steps.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] 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.

[0139] 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.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] It should be understood that the method 300 shown in FIG9 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 the steps or operations in FIG9 are merely examples, and other operations or variations of the various operations in FIG9 can also be performed in the embodiments of this application.

[0147] Figure 10 is a specific flowchart of method 300. It should be understood that the charging method shown in Figure 10 is performed based on the charging system shown in Figure 3.

[0148] In 401, the charging gun on the charging module is physically connected to the power-consuming device.

[0149] In section 402, the control module in the charging system receives battery status parameters sent by the BMS.

[0150] The battery status parameters include the battery's temperature, state of charge (SOC), voltage, and current.

[0151] In 403, the control module determines whether to charge directly based on the battery temperature.

[0152] 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.

[0153] In 404, the control module determines the battery that needs to be heated based on the location information sent by the BMS.

[0154] 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.

[0155] In 405, the control module determines the heating sequence of battery 1 and battery 2.

[0156] Specifically, the control module determines that battery 1 heats up before battery 2.

[0157] In 406, the control module controls the first switch K11 connected to battery 1 to close.

[0158] In 407, the heating module heats battery 1.

[0159] 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.

[0160] In 409, the heating module heats battery 2.

[0161] In 410, the control module controls the second switch K21 connected to battery 1 to close.

[0162] In 411, the charging module 220_1 charges the battery 1.

[0163] 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.

[0164] In 413, the control module controls the second switch K22 connected to battery 2 to close.

[0165] In 414, charging module 220_2 charges battery 2.

[0166] 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.

[0167] In 416, charging module 220_3 charges battery 3 and charging module 220_4 charges battery 4.

[0168] The charging process ends once all batteries are fully charged.

[0169] Figure 11 is another specific flowchart of method 300. It should be understood that the charging method shown in Figure 11 is performed based on the charging system shown in Figure 4.

[0170] In 501, the charging gun on the charging module is physically connected to the power-consuming device.

[0171] In 502, the control module in the charging system receives battery status parameters sent by the BMS.

[0172] The battery status parameters include the battery's temperature, state of charge (SOC), voltage, and current.

[0173] In the 503, the control module determines whether to charge directly based on the battery temperature.

[0174] 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.

[0175] In 504, the control module determines at least one battery that needs to be heated based on the location information sent by the BMS.

[0176] Specifically, the control module determines that all batteries need to be heated first.

[0177] 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.

[0178] Specifically, the control module determines that battery 1 heats up before battery 2, and battery 3 heats up before battery 4.

[0179] 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.

[0180] In 507, the heating module heats both battery 1 and battery 3 simultaneously.

[0181] 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.

[0182] In step 509, the heating module stops heating battery 1 and starts heating battery 2.

[0183] Meanwhile, the heating module continues to heat battery 3.

[0184] In 510, the control module controls the second switch K21 connected to battery 1 to close.

[0185] In 511, charging module 220_1 charges battery 1.

[0186] 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.

[0187] In 513, the heating module stops heating battery 3 and starts heating battery 4.

[0188] In 514, the control module controls the second switch K23 connected to battery 3 to close.

[0189] In 515, charging module 220_3 charges battery 3.

[0190] 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.

[0191] In 517, the control module controls the second switch K22 connected to battery 2 to close.

[0192] In 518, charging module 220_2 charges battery 2.

[0193] 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.

[0194] In 520, the control module controls the second switch K24, which is connected to battery 4, to close.

[0195] In 521, charging module 220_4 charges battery 4.

[0196] The charging process ends once all batteries are fully charged.

[0197] It should be understood that Figures 10 and 11 are only for the purpose of helping those skilled in the art to better understand the embodiments of this application, and are not intended to limit the scope of the embodiments of this application.

[0198] Figure 12 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, the processor 602, and the communication interface 603 are interconnected via the bus 604.

[0199] 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.

[0200] 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.

[0201] 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.

[0202] 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.

[0203] 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.

[0204] 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).

[0205] It should be noted that although the charging system 600 described above only shows the 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. In addition, 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 not necessarily all the devices shown in FIG12.

[0206] 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.

[0207] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0208] 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.

[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.

[0210] 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.

Images