Charging control method, charging equipment and storage medium

Abstract

The invention relates to the technical field of energy storage, and provides a charging control method, charging equipment and a storage medium, and the method comprises the steps: determining a charging starting sequence of a plurality of batteries according to the electric quantity of each battery; selecting a candidate battery from the plurality of batteries according to the charging starting sequence, and determining the required charging power of the candidate battery based on the charging interval corresponding to the candidate battery; if the required charging power is smaller than or equal to the residual charging power of the charging equipment, charging the candidate battery, and updating the residual charging power according to the charging consumption power of the candidate battery; and selecting a next candidate battery from the plurality of batteries for charging according to the charging starting sequence until the residual charging power of the charging equipment is smaller than the required charging power of the selected candidate battery. According to the method, the multiple batteries can be charged at the same time, so that the charging period of the multiple batteries is effectively shortened, and the charging efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to a charging control method, a charging device and a storage medium. Background Art

[0002] Multi-battery charging management equipment is used to charge and manage multiple batteries (at least three or more), and is suitable for application scenarios that require a large number of backup batteries or have a continuous demand for battery life, such as drone operations, power tool use, emergency rescue equipment, etc. However, multi-battery charging management equipment requires a higher input power to charge multiple batteries at the same time, and requires the use of high-specification electronic components and complex heat dissipation systems, which will significantly increase the manufacturing cost of multi-battery charging management equipment. Therefore, in actual application scenarios, it is difficult to charge multiple batteries at the same time.

[0003] In the related art, multi-battery charging management equipment adopts the charging mode of "intelligent round charging", which only charges one battery at a high intensity in the same time period, while other batteries are in standby or low-current pre-charging state. When the first battery is fully charged, it automatically switches to the next battery for charging, and so on, until all batteries are fully charged in turn. However, in this charging mode, each battery needs to wait for the previous battery to be fully charged before it can start charging, which prolongs the entire charging cycle and leads to low overall charging efficiency. Summary of the invention

[0004] In view of this, the present application provides a charging control method, a charging device and a storage medium to solve the problems of long charging cycle and low charging efficiency in the charging method provided in the related art.

[0005] A first aspect of an embodiment of the present application provides a charging control method, which is applied to a charging device, wherein the charging device is electrically connected to multiple batteries, and the charging control method includes: determining a charging start order for the multiple batteries according to the power of each battery; selecting a candidate battery from the multiple batteries according to the charging start order, and determining the required charging power of the candidate battery based on the charging interval corresponding to the candidate battery; if the required charging power is less than or equal to the remaining charging power of the charging device, charging the candidate battery, and updating the remaining charging power according to the charging consumption power of the candidate battery; and selecting the next candidate battery from the multiple batteries according to the charging start order for charging, until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

[0006] In some embodiments, determining the charging start sequence of the multiple batteries according to the power level of each battery includes: sorting the power levels of the multiple batteries in order from large to small; and determining the charging start sequence of the multiple batteries according to the power level sorting.

[0007] In some embodiments, the method further includes: if there are at least two batteries with the same charge level, determining a charging start sequence of the at least two batteries according to a sequence of battery slots corresponding to the at least two batteries.

[0008] In some embodiments, determining a candidate battery from the multiple batteries according to the charging start sequence includes: determining the charging status of each battery in turn according to the charging start sequence; selecting a battery with the highest charging priority from the batteries in an uncharged state as the candidate battery, the charging priority being determined based on the charging start sequence of the batteries in an uncharged state.

[0009] In some embodiments, the method further includes: if it is detected that a new battery is connected to the charging device, obtaining the power of all batteries electrically connected to the charging device; updating the charging start sequence based on the power of all batteries and the battery slot sequence, and selecting the next candidate battery from the multiple batteries according to the updated charging start sequence.

[0010] In some embodiments, the method further includes: obtaining historical charging current change trends and historical charging voltage change trends based on historical charging records of the battery; dividing the battery into charging intervals based on the charging current change trends and the charging voltage change trends; obtaining the maximum charging power corresponding to each charging interval, and using the maximum charging power as the required charging power corresponding to each charging interval.

[0011] In some embodiments, the method further includes: calculating a corresponding charging interval according to the power level of the candidate battery.

[0012] In some embodiments, the charging interval includes a constant voltage charging interval, a constant current charging interval and a trickle charging interval, and the method also includes: if the battery power is greater than a first power threshold and less than a second power threshold, determining that the battery charging interval is a constant current charging interval; if the battery power is greater than or equal to the second power threshold and less than a third power threshold, determining that the battery charging interval is a constant voltage charging interval; if the battery power is greater than or equal to the third power threshold and less than a fourth power threshold, determining that the battery charging interval is a trickle charging interval.

[0013] A second aspect of an embodiment of the present application provides a charging device, including a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor, wherein the processor implements the above-mentioned charging control method when executing the computer-readable instructions.

[0014] A third aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-readable instructions, and the computer-readable instructions implement the above-mentioned charging control method when executed by a processor.

[0015] In a charging control method provided in an embodiment of the present application, the charging start sequence of multiple batteries is determined according to the power of each battery and the order of the battery slots. According to the charging start sequence of the multiple batteries, candidate batteries are selected in turn, and according to the required charging power of the candidate batteries, the candidate batteries are charged on demand until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery or the multiple batteries have been fully charged. In the case where the remaining charging power of the charging device is sufficient, this method can be used to charge multiple batteries simultaneously according to the power demand of each battery, thereby effectively shortening the charging cycle of the multiple batteries and improving the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is an application scenario diagram of the charging control method provided in an embodiment of the present application.

[0018] Figure 2 It is a flow chart for implementing the charging control method provided in the embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of a battery charging curve provided in an embodiment of the present application.

[0020] Figure 4 It is a structural schematic diagram of the charging control device provided in an embodiment of the present application.

[0021] Figure 5 It is a schematic diagram of the structure of the charging device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field in this application. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. It should be understood that, unless otherwise specified in this application, " / " means or. For example, A / B can represent A or B. "And / or" in this application is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. "At least one" means one or more. "Multiple" means two or more than two. For example, at least one of a, b or c can represent: a, b, c, a and b, a and c, b and c, a, b and c seven situations.

[0025] See also Figure 1 , Figure 1 This is an application scenario diagram of the charging control method provided in the embodiment of the present application. Figure 1 As shown, the charging device 100 is electrically connected to the batteries 1 to N. By being electrically connected to the batteries 1 to N, the charging device 100 can charge the batteries 1 to N and communicate with the batteries 1 to N to achieve charging control of the batteries 1 to N.

[0026] In the process of implementing charging control, the charging device 100 determines the charging start sequence of batteries 1 to N according to the power of each battery and the order of the battery slots. The charging device 100 selects candidate batteries from batteries 1 to N according to the charging start sequence, determines the required charging power of the candidate batteries based on the charging intervals corresponding to the candidate batteries, and compares the required charging power of the candidate batteries with the remaining charging power of the charging device 100. If the required charging power is less than or equal to the remaining charging power of the charging device 100, the charging device 100 charges the candidate battery and updates the remaining charging power according to the charging power consumption of the candidate battery. At the same time, the charging device 100 selects the next candidate battery from batteries 1 to N for charging according to the charging start sequence until the remaining charging power of the charging device 100 is less than the required charging power of the selected candidate battery. Using the above charging control method, the charging device 100 can realize the simultaneous charging of multiple batteries, thereby effectively shortening the charging cycle of multiple batteries and improving charging efficiency.

[0027] In some embodiments, the charging device 100 provides input for batteries 1 to N through a charging port (e.g., a Type-c charging port) and is compatible with a charging protocol (e.g., a power delivery (PD) charging protocol). The embodiments of the present application do not limit the types of charging ports and charging protocols.

[0028] In some embodiments, the charging device 100 may be any one of a power supply, a charger, a charging cabinet, etc. Batteries 1 to N may be lithium batteries, lead-acid batteries, etc. The embodiment of the present application does not limit the specific device types of the charging device 100 and batteries 1 to N.

[0029] Figure 1 The illustrated scenarios are merely illustrative examples, and the charging control method provided in this application may also be applied in other scenarios. The embodiments of this application do not limit the specific application scenarios of the charging control method.

[0030] See also Figure 2 The figure is a flowchart of the implementation of the charging control method provided in the embodiment of the present application. The method is applied to the charging device. The embodiment of the present application is applied to the method in Figure 1 The method is described by taking the charging device 100 in FIG. 1 as an example. The method comprises the following steps.

[0031] S11: Determine a charging start sequence for the multiple batteries according to the power level of each battery.

[0032] In some embodiments, the charging device can detect the charge level of each battery through a sensor.

[0033] In other embodiments, the charging device may also send a power acquisition request to the battery, and the battery responds to the power acquisition request and sends the corresponding power information to the charging device. The embodiment of the present application does not limit the specific method of acquiring the power of each battery.

[0034] In some embodiments of the present application, the charging device determines the charging start order of multiple batteries based on the power level of each battery and the order of battery slots, including: the charging device sorts the power levels of multiple batteries in order from large to small; and determines the charging start order of multiple batteries based on the power level sorting.

[0035] In some embodiments, the charging device determines the charging start order of the multiple batteries according to the power level of each battery. The battery with higher power level has higher charging priority, and the battery is charged with higher priority. For example, the multiple batteries include battery 1, battery 2, and battery 3, the power level of battery 1 is 80%, the power level of battery 2 is 40%, and the power level of battery 3 is 60%, then the charging start order of the multiple batteries is battery 1, battery 3, and battery 2.

[0036] In some embodiments of the present application, if there are at least two batteries with the same charge level, the charging device determines a charging start sequence for the at least two batteries according to a sequence of battery slots corresponding to the at least two batteries.

[0037] In some embodiments, a plurality of battery slots are provided in the charging device for providing electrical connection for the battery so that the charging device can supply power to the battery. Each battery slot is provided with a fixed number or position mark.

[0038] In some embodiments, the order of the battery slots can be determined according to the fixed numbers or the sorting method of the position identifiers corresponding to the battery slots. For example, the order of the battery slots can be determined in the order of numbers from large to small or from small to large. For example, the order of the battery slots can be determined in the order of position identifiers from left to right, or in the order of position identifiers from right to left, or in the order of position identifiers from top to bottom, or in the order of position identifiers from bottom to top. The embodiment of the present application does not limit the method of determining the order of the battery slots.

[0039] As an example, the charging device determines the order of the battery slots according to the order of numbers from large to small, and in the case where the power of at least two batteries is the same, the larger the number of the battery slot corresponding to the battery is, the higher the charging priority of the corresponding battery. For example, the multiple batteries include battery 1, battery 2 and battery 3, the power of battery 1 is 80%, the power of battery 2 is 40%, and the power of battery 3 is 40%, the battery slot number of battery 1 is 01, the battery slot number of battery 2 is 02, and the battery slot number of battery 3 is 03. In this case, the charging device determines that battery 1 has the highest charging priority, the power of battery 2 is the same as that of battery 3, the battery slot number of battery 3 is larger, and the corresponding charging priority is higher, so the charging start order of battery 1, battery 2 and battery 3 is battery 1, battery 3, battery 2.

[0040] In other embodiments, the charging start sequence is also determined in combination with other factors, such as the type, capacity, charging rate of the battery, and limitations of the charging device, to ensure the safety, efficiency, and reliability of the charging process.

[0041] S12: selecting a candidate battery from the plurality of batteries according to the charging start sequence, and determining a required charging power of the candidate battery based on a charging interval corresponding to the candidate battery.

[0042] In some embodiments, the charging interval represents different power states or charging stages experienced by the battery from the beginning of charging to full charging of the battery. The charging interval includes a constant voltage charging interval, a constant current charging interval, and a trickle charging interval.

[0043] In some embodiments, the required charging power indicates the maximum charging power required by the candidate battery during charging in the corresponding charging interval.

[0044] In some embodiments of the present application, candidate batteries are determined from the multiple batteries according to the charging start sequence, including: determining the charging status of each battery in turn according to the charging start sequence; and selecting a battery with the highest charging priority from the batteries in an uncharged state as the candidate battery, the charging priority being determined based on the charging start sequence of the batteries in an uncharged state.

[0045] In some embodiments, the charging status includes a charged state and an uncharged state.

[0046] In some embodiments, the higher the charging priority of a battery, the higher the priority that the charging device gives to charging the battery.

[0047] In some embodiments, the candidate battery represents a battery with the highest charging priority among the batteries whose charging condition is an uncharged state.

[0048] In some embodiments of the present application, the charging device may calculate a corresponding charging interval according to the power level of the candidate battery. In some embodiments, the charging interval includes a constant voltage charging interval, a constant current charging interval, and a trickle charging interval. The charging interval represents the different power states or charging stages that the battery goes through during the process from the start of charging to full charging. Each charging interval corresponds to a different power interval. Figure 3 As shown, the stage from t0 to t1 is the constant current charging interval, at which time the battery power is low. In the constant current charging mode, the current is constant. As the battery power increases, the voltage rises, and the battery charging power increases. The stage from t1 to t2 is the constant voltage charging interval. In the constant voltage charging mode, the voltage remains unchanged, and the current gradually decreases as the battery power increases, and the battery charging power gradually decreases. After t2 is the trickle charging interval, at which time the battery power is close to full and the charging is slow. In the trickle charging (or floating charging) mode, the battery is charged at a small charging power.

[0049] In some embodiments, the charging device may obtain historical power change data corresponding to each charging interval of the battery by obtaining the historical charging record of the battery. Based on the historical power change data corresponding to each charging interval of the battery, the charging device may use a mathematical statistical model, a deep learning model, etc. to predict the power interval corresponding to each charging interval of the battery. After obtaining the power interval corresponding to each charging interval of the battery, the charging device may match the corresponding charging interval according to the power interval of the battery.

[0050] In some embodiments of the present application, if the battery power is greater than a first power threshold and less than a second power threshold, the charging device determines that the charging interval of the battery is a constant current charging interval; if the battery power is greater than or equal to the second power threshold and less than a third power threshold, the charging device determines that the charging interval of the battery is a constant voltage charging interval; if the battery power is greater than or equal to the third power threshold and less than a fourth power threshold, the charging device determines that the charging interval of the battery is a trickle charging interval.

[0051] In some embodiments, the charging device can predict the first power threshold, the second power threshold, the third power threshold, and the fourth power threshold based on the historical power change data of the battery in each charging interval using mathematical statistical models, deep learning models, etc.

[0052] In other embodiments, the charging device may calculate the corresponding charging interval according to the charging current and charging voltage of the battery. Figure 3As shown, in different charging intervals, the battery's charging current and charging voltage have obvious differences in state, so the charging device can obtain the charging current range and charging voltage range corresponding to different charging intervals. The charging device can determine the corresponding charging interval based on the charging current range and charging voltage range of the battery's charging current.

[0053] In some embodiments of the present application, the charging device determines the required charging power corresponding to each charging interval, including: obtaining historical charging current change trends and historical charging voltage change trends based on the historical charging records of the battery; dividing the battery's charging intervals based on the charging current change trends and the charging voltage change trends; in order to ensure that the charging device allocates charging power to meet the battery's charging needs, the charging device can obtain the maximum charging power corresponding to each charging interval, and use the maximum charging power as the required charging power corresponding to each charging interval.

[0054] like Figure 3 As shown, in the constant current charging mode, the current is constant. As the battery power increases, the voltage rises, and the charging power of the battery increases. At t1, the charging power of the battery is the largest, so the charging device can use the charging power at t1 as the required charging power corresponding to the constant current charging interval. The stage from t1 to t2 is the constant voltage charging interval. In the constant voltage charging mode, the voltage remains unchanged, and the current gradually decreases as the battery power increases, and the charging power of the battery gradually decreases. Among them, at t1, the charging power of the battery is the largest, so the charging device can use the charging power at t1 as the required charging power corresponding to the constant voltage charging interval. After t2 is the trickle charging interval. In the trickle charging (or floating charging) mode, the charging power of the battery shows a small decrease trend. At t2, the charging power of the battery is the largest, so the charging device can use the charging power at t2 as the required charging power corresponding to the trickle charging interval.

[0055] In other embodiments of the present application, the battery can obtain the power and calculate the charging interval and the corresponding required charging power, and send the power, charging interval and the corresponding required charging power to the charging device.

[0056] S13: Determine whether the required charging power is less than or equal to the remaining charging power of the charging device.

[0057] In some embodiments, the remaining charging power of the charging device represents the available charging power of the charging device.

[0058] In some embodiments, the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device, indicating that the remaining charging power of the charging device can meet the charging demand of the candidate battery. The required charging power of the candidate battery is greater than the remaining charging power of the charging device, indicating that the remaining power of the charging device may not be able to meet the demand of the candidate battery.

[0059] S14: If the required charging power of the candidate battery is greater than the remaining charging power of the charging device, stop charging the candidate battery.

[0060] In some embodiments, the required charging power of the candidate battery is greater than the remaining charging power of the charging device, indicating that the remaining charging power of the charging device cannot meet the charging demand of the candidate battery.

[0061] In addition, when multiple batteries are of the same type, if the charging device determines the charging start sequence of the multiple batteries in order from large to small power, then according to the battery charging curves corresponding to the multiple batteries, the required charging power of the battery charged first will be less than or equal to the required charging power of the battery charged later. In this case, when the required charging power of the currently selected candidate battery is greater than the remaining charging power of the charging device, the required charging power of the battery whose charging start sequence is after the currently selected candidate battery must also be greater than the remaining charging power of the charging device. Therefore, when the charging device determines the charging start sequence of multiple batteries in order from large to small power, if the required charging power of the candidate battery is greater than the remaining charging power of the charging device, the charging device can control the currently selected candidate battery and the battery whose charging start sequence is after the currently selected candidate battery to stop charging. In this process, the charging device can continue to charge the battery whose required charging power is less than the remaining charging power of the charging device.

[0062] S15: If the required charging power is less than or equal to the remaining charging power of the charging device, the candidate battery is charged, and the remaining charging power is updated according to the charging power consumption of the candidate battery.

[0063] In some embodiments, the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device, indicating that the remaining charging power of the charging device can meet the charging demand of the candidate battery. In this case, the charging device can charge the candidate battery. In the process of the charging device charging the candidate battery, the conversion and loss of charging power will occur. Specifically, part of the power output by the charging device is effectively absorbed by the battery and converted into chemical energy for storage, while the other part is consumed due to non-ideal factors in the energy conversion process (such as resistive thermal effects, etc.), so that the remaining available charging power of the charging device will be reduced accordingly. Therefore, while the charging device is charging the candidate battery, the remaining charging power can be updated according to the charging power consumption of the candidate battery.

[0064] S16: Selecting a next candidate battery from the multiple batteries for charging according to the charging start sequence until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

[0065] In some embodiments, when the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device, the charging device charges the candidate battery. At the same time, the charging device selects the next candidate battery from the multiple batteries for charging in sequence according to the charging start sequence until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery, and stops charging the selected candidate battery.

[0066] As an example, the multiple batteries include battery 1, battery 2, and battery 3. The power of battery 1 is 90%, the power of battery 2 is 60%, and the power of battery 3 is 20%. The charging start sequence of the multiple batteries is battery 1, battery 2, and battery 3. In the process of charging control of the multiple batteries, the charging device preferentially selects battery 1 as a candidate battery. If the required charging power of battery 1 is greater than the remaining charging power of the charging device, the charging device does not charge any battery. If the required charging power of battery 1 is less than or equal to the remaining charging power of the charging device, the charging device charges battery 1, updates the remaining charging power of the charging device according to the charging power consumption of battery 1, and selects battery 2 as a candidate battery according to the charging start sequence. If the required charging power of battery 2 is greater than the remaining charging power of the charging device, the charging device only charges battery 1, and does not charge battery 2 and battery 3. If the required charging power of battery 2 is less than or equal to the remaining full power of the charging device, the charging device charges battery 2 and battery 1 at the same time, updates the remaining charging power of the charging device according to the charging power consumption of battery 2 and battery 1, and selects battery 3 as a candidate battery according to the charging start sequence. If the required charging power of battery 3 is greater than the remaining charging power of the charging device, the charging device only charges battery 1 and battery 2, and does not charge battery 3. If the required charging power of battery 3 is less than or equal to the remaining charging power of the charging device, the charging device charges battery 3, battery 2 and battery 1 at the same time, and updates the remaining charging power of the charging device according to the charging power consumption of battery 3, battery 2 and battery 1.

[0067] In some embodiments, when the power of the candidate battery reaches the corresponding preset power threshold, the charging device stops charging the candidate battery. Alternatively, when the charging current of the candidate battery is less than the preset current threshold, the charging device stops charging the candidate battery. Among them, the preset power threshold and the preset current threshold can be customized. For example, the preset power threshold can be set to 100%, 98%, etc. The preset current threshold can be set to 0.02A, 0.03A, 0.05A, etc. The embodiments of the present application do not limit the specific settings of the preset power threshold and the preset current threshold.

[0068] In some embodiments of the present application, the charging device can detect the remaining charging power of the charging device in real time. For example, when one or more batteries are in the trickle charging interval, the consumed charging power will gradually decrease, and the remaining charging power of the charging device will gradually increase. As the remaining charging power increases, the remaining charging power may meet the charging needs of some batteries. In this case, the charging device can select the battery with the highest charging priority from the batteries in the uncharged state as a candidate battery. If the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device, the candidate battery is charged.

[0069] In some embodiments of the present application, after at least one battery is fully charged or the power reaches a preset power threshold, the charging device will stop charging the at least one battery to avoid overcharging affecting the performance and soundness of the battery. When the charging device stops charging the at least one battery, part of the charging power will be released, so that the remaining charging power of the charging device will increase. In this case, the charging device can select the battery with the highest charging priority from the batteries in the uncharged state as a candidate battery. If the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device, the charging device charges the candidate battery.

[0070] In some embodiments of the present application, if the charging device is disconnected from the battery in the charging state, the remaining charging power of the charging device will increase. The charging device can select the battery with the highest charging priority from the batteries in the uncharged state as the candidate battery. If the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device, the charging device charges the candidate battery.

[0071] In some embodiments of the present application, if it is detected that a new battery is connected to the charging device, the charging device can obtain the power of all batteries electrically connected to the charging device, and update the charging start sequence based on the power of all batteries and the battery slot sequence. The charging device can select the next candidate battery from the multiple batteries for charging according to the updated charging start sequence until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

[0072] In a charging control method provided in an embodiment of the present application, the charging start sequence of multiple batteries is determined according to the power of each battery and the order of the battery slots. According to the charging start sequence of the multiple batteries, candidate batteries are selected in turn, and according to the required charging power of the candidate batteries, the candidate batteries are charged on demand until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery or the multiple batteries have been fully charged. In the case where the remaining charging power of the charging device is sufficient, the method can be used to charge multiple batteries at the same time, thereby effectively shortening the charging cycle of the multiple batteries and improving the charging efficiency.

[0073] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0074] See also Figure 4 , is a structural diagram of the charging control device provided in the embodiment of the present application, which can implement the details of the charging control method in the above embodiment and achieve the same effect. Figure 4 As shown, the charging control device 10 can be applied to a charging device with a data processing function, and the charging control device 10 includes: a sorting module 11, which is used to determine the charging start sequence of multiple batteries according to the power of each battery and the battery slot sequence; a selection module 12, which is used to select a candidate battery from multiple batteries according to the charging start sequence, and determine the required charging power of the candidate battery based on the charging interval corresponding to the candidate battery; a charging module 13, which is used to charge the candidate battery if the required charging power is less than or equal to the remaining charging power of the charging device, and update the remaining charging power according to the charging consumption power of the candidate battery; and the selection module 12 is also used to select the next candidate battery from the multiple batteries for charging according to the charging start sequence, until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

[0075] For the specific definition of the charging control device 10, please refer to the definition of the charging control method above, which will not be repeated here. Each module in the above-mentioned charging control device 10 can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the charging device in the form of hardware, or can be stored in the memory of the charging device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0076] See also Figure 5 , Figure 5 The diagram is a schematic diagram of the structure of a charging device provided by an embodiment of the present application. The network where the charging device 100 is located includes but is not limited to the Internet, a wide area network, a metropolitan area network, a local area network, a virtual private network (VPN), etc.

[0077] like Figure 5 As shown, the charging device 100 includes a communication module 101, a memory 102, a processor 103, an input / output interface 104 and a bus 105. The processor 103 is coupled to the communication module 101, the memory 102 and the input / output interface 104 through the bus 105. The communication module 101 may be a wireless communication module or a mobile communication module. The wireless communication module may provide wireless communication solutions including wireless local area networks (WLAN) (e.g., wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR), etc., applied to the charging device 100. The mobile communication module may provide wireless communication solutions including 2G / 3G / 4G / 5G, etc., applied to the charging device 100. The memory 102 may include one or more random access memories (RAM) and one or more non-volatile memories (NVM). The random access memory can be directly read and written by the processor 103, and can be used to store executable programs (such as machine instructions) of the operating system or other running programs, and can also be used to store user and application data. The random access memory may include static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM, for example, the fifth generation DDR SDRAM is generally called DDR5 SDRAM), etc. The non-volatile memory may also store executable programs and user and application data, etc., and may be loaded into the random access memory in advance for direct reading and writing by the processor 103. The non-volatile memory may include a disk storage device and a flash memory. The memory 102 is used to store one or more computer programs. The one or more computer programs are configured to be executed by the processor 103. The one or more computer programs include multiple instructions, and when the multiple instructions are executed by the processor 103, the charging control method executed on the charging device 100 can be implemented. In other embodiments, the charging device 100 further includes an external memory interface for connecting to an external memory to expand the storage capacity of the charging device 100 . The processor 103 may include one or more processing units, for example, the processor 103 may include an application processor (AP), a modem processor, a graphics processor (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors. The processor 103 provides computing and control capabilities. For example, the processor 103 is used to execute a computer program stored in the memory 102 to implement the above-mentioned charging control method. The input / output interface 104 is used to provide a channel for user input or output. For example, the input / output interface 104 can be used to connect various input and output devices, such as a mouse, keyboard, touch device, display screen, etc., so that the user can enter information or visualize information. The bus 105 is at least used to provide a channel for mutual communication among the communication module 101 , the memory 102 , the processor 103 , and the input / output interface 104 in the charging device 100 . It is understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the charging device 100. In other embodiments of the present application, the charging device 100 may include more or fewer components than shown in the figure, or combine some components, or split some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0078] An embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. The computer program includes program instructions. The method implemented when the program instructions are executed can refer to the charging control method in the above-mentioned embodiments of the present application. The computer-readable storage medium may be the internal memory of the charging device in the above-mentioned embodiment, such as the hard disk or memory of the charging device. The computer-readable storage medium may also be an external storage device of the charging device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), etc. equipped on the charging device. Furthermore, the computer-readable storage medium may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function, etc.; the data storage area may store data created according to the use of the charging device, etc.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A charging control method, applied to a charging device, characterized in that: The charging device is electrically connected to a plurality of batteries, and the charging control method comprises: Determining a charging start sequence for the multiple batteries according to the power level of each battery; selecting a candidate battery from the plurality of batteries according to the charging start sequence, and determining a required charging power of the candidate battery based on a charging interval corresponding to the candidate battery; If the required charging power is less than or equal to the remaining charging power of the charging device, charging the candidate battery, and updating the remaining charging power according to the charging power consumption of the candidate battery; and According to the charging start sequence, a next candidate battery is selected from the multiple batteries for charging until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

2. The charging control method according to claim 1, characterized in that: The step of determining the charging start sequence of the plurality of batteries according to the power level of each battery includes: Sorting the power levels of the multiple batteries in descending order; The charging start sequence of the multiple batteries is determined according to the power ranking.

3. The charging control method according to claim 1, characterized in that: The method further comprises: If there are at least two batteries with the same power level, a charging start sequence of the at least two batteries is determined according to the sequence of battery slots corresponding to the at least two batteries.

4. The charging control method according to claim 1, characterized in that: Determining a candidate battery from the plurality of batteries according to the charging start sequence includes: Determining the charging status of each battery in turn according to the charging start sequence; A battery with the highest charging priority is selected from the batteries in the uncharged state as the candidate battery, wherein the charging priority is determined based on the charging start sequence of the batteries in the uncharged state.

5. The charging control method according to claim 1, characterized in that: The method further comprises: If it is detected that a new battery is connected to the charging device, the power of all batteries electrically connected to the charging device is obtained; Based on the power levels of all the batteries and the battery slot sequence, updating the charging start sequence, and The next candidate battery is selected from the plurality of batteries according to the updated charging start sequence.

6. The charging control method according to claim 1, characterized in that: The method further comprises: According to the historical charging records of the battery, obtaining the historical charging current change trend and the historical charging voltage change trend; Dividing the charging interval of the battery based on the charging current variation trend and the charging voltage variation trend; The maximum charging power corresponding to each charging interval is obtained, and the maximum charging power is used as the required charging power corresponding to each charging interval.

7. The charging control method according to claim 1, characterized in that: The method further comprises: According to the power level of the candidate battery, a corresponding charging interval is calculated.

8. The charging control method according to claim 7, characterized in that: The charging interval includes a constant voltage charging interval, a constant current charging interval and a trickle charging interval, and the method further includes: If the power level of the battery is greater than a first power level threshold and less than a second power level threshold, determining that the charging interval of the battery is a constant current charging interval; If the power level of the battery is greater than or equal to the second power level threshold and less than the third power level threshold, determining that the charging interval of the battery is a constant voltage charging interval; If the power level of the battery is greater than or equal to the third power level threshold and less than the fourth power level threshold, it is determined that the charging interval of the battery is a trickle charging interval.

9. A charging device, characterized in that: The invention comprises a memory, a processor and computer-readable instructions stored in the memory and executable on the processor, wherein the processor implements the charging control method according to any one of claims 1 to 8 when executing the computer-readable instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-readable instructions, and when the computer-readable instructions are executed by a processor, the charging control method according to any one of claims 1 to 8 is implemented.

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