CN113451669A - Charging method and device, electronic device and storage medium - Google Patents
Charging method and device, electronic device and storage medium Download PDFInfo
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- CN113451669A CN113451669A CN202010229300.2A CN202010229300A CN113451669A CN 113451669 A CN113451669 A CN 113451669A CN 202010229300 A CN202010229300 A CN 202010229300A CN 113451669 A CN113451669 A CN 113451669A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The disclosure relates to a charging method and device, an electronic device and a storage medium. The method comprises the following steps: in response to determining that a charging operation is detected, switching the plurality of cells to charge in a series mode; acquiring charging data of each battery cell in a series mode in a charging process; when the charging data of at least one battery cell in any one series branch circuit meets a first preset condition, the at least one battery cell is switched to be charged in a parallel mode. In the embodiment, high-power charging can be adopted in the early stage of charging, so that the charging speed is favorably improved; adopt low-power to charge in the later stage of charging, the charging data of balanced each electric core is favorable to reducing electric core overcharge danger, promotes battery safety.
Description
Technical Field
The present disclosure relates to the field of power management technologies, and in particular, to a charging method and apparatus, an electronic device, and a storage medium.
Background
Along with the intelligent terminal becomes the important equipment of people's work and life, intelligent terminal's power consumption increases along with it for intelligent terminal needs frequency to charge.
In the related art, the charging current is increased, so that the charging efficiency can be improved, and the charging time can be shortened. However, the large-current charging mode may increase the power consumption of the battery cell, and then the temperature of the battery is high, which adversely affects the charging efficiency and the service life of the battery cell.
Therefore, in the related art, a plurality of battery cells in the intelligent terminal are changed into two strings of battery cells, the charging voltage of each string of battery cells is increased, and the charging current is reduced (to half of the original charging current), so that the problem that the power consumption of the battery cells is increased due to the existing large-current charging can be solved.
However, the two battery cells in each string of battery cells may have different voltages during the charging process due to different residual capacities and/or different internal impedances of the two battery cells, and the battery cells with higher voltages may be damaged.
Disclosure of Invention
The present disclosure provides a charging method and apparatus, an electronic device, and a storage medium to solve the deficiencies of the related art.
According to a first aspect of the embodiments of the present disclosure, there is provided a charging method applied to an electronic device, where the electronic device includes a plurality of battery cells, the method including:
in response to determining that a charging operation is detected, switching the plurality of cells to charge in a series mode;
acquiring charging data of each battery cell in a series mode in a charging process;
when it is determined that the charging data of at least one battery cell in any one series branch meets a first preset condition, at least the battery cell of the series branch in which the at least one battery cell is located is switched to a parallel mode for charging.
Optionally, switching the plurality of battery cells to charge in a series mode includes:
sending control information to each switching device, wherein the control information is used for switching on or off each switching device so that the plurality of battery cells are switched to a series mode;
and sending first charging control information to a charging device so that the charging device outputs a charging voltage and a charging current corresponding to the series mode.
Optionally, the charging data comprises at least one of: relative voltage, relative electric quantity, absolute voltage, absolute electric quantity.
Optionally, the charging data meeting the first preset condition includes one of: the difference value of the charging data of the two battery cores is greater than a preset first charging data threshold value, the difference value of the charging data of the two battery cores is greater than the first charging data threshold value and keeps a preset time length, and the charging data of any battery core exceeds a preset second charging data threshold value.
Optionally, at least switching the battery cell of the series branch in which the at least one battery cell is located to charge in a parallel mode includes:
sending control information to each switching device, wherein the control information is used for switching on or off each switching device so that the battery cell of the series branch where at least one battery cell is located is switched to a parallel mode;
and sending second charging control information to the charging equipment so that the charging equipment outputs the charging voltage and the charging current corresponding to the parallel mode.
According to a second aspect of the embodiments of the present disclosure, there is provided a charging device applied to an electronic device, where the electronic device includes a plurality of battery cells, the device includes:
a series charging module configured to switch the plurality of battery cells to charge in a series mode in response to determining that a charging operation is detected;
the parameter acquisition module is used for acquiring charging data of each battery cell in a series mode in the charging process;
the parallel charging module is used for at least switching the battery cell of the serial branch where the battery cell is located to charge in a parallel mode when it is determined that the charging data of at least one battery cell in any serial branch meets a first preset condition.
Optionally, the series charging module comprises:
sending control information to each switching device, wherein the control information is used for switching on or off each switching device so that the plurality of battery cells are switched to a series mode;
and the control information sending unit is used for sending first charging control information to the charging equipment so as to enable the charging equipment to output the charging voltage and the charging current corresponding to the series mode.
Optionally, the charging data comprises at least one of: relative voltage, relative electric quantity, absolute voltage, absolute electric quantity.
Optionally, the charging data meeting the first preset condition includes one of: the difference value of the charging data of the two battery cores is greater than a preset first charging data threshold value, the difference value of the charging data of the two battery cores is greater than the first charging data threshold value and keeps a preset time length, and the charging data of any battery core exceeds a preset second charging data threshold value.
Optionally, the parallel charging module includes:
the switching device control unit is used for sending control information to each switching device, and the control information is used for switching on or off each switching device so that the battery cell of the serial branch where the at least one battery cell is located is switched to a parallel mode;
and the control information sending unit is used for sending second charging control information to the charging equipment so as to enable the charging equipment to output the charging voltage and the charging current corresponding to the parallel mode.
According to a third aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:
a processor;
a memory for storing a computer program executable by the processor;
the processor is configured to execute the computer program in the memory to implement the steps of any of the methods described above.
According to a fourth aspect of embodiments of the present disclosure, there is provided a readable storage medium having stored thereon an executable computer program which, when executed, performs the steps of any of the methods described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
as can be seen from the foregoing embodiments, in the embodiments of the present disclosure, when it is determined that the charging operation is detected, the plurality of battery cells may be switched to the series mode for charging in response to determining that the charging operation is detected; then, acquiring charging data of each battery cell in a series mode in the charging process; when it is determined that the charging data of at least one battery cell in any one series branch meets a first preset condition, at least the battery cell of the series branch in which the at least one battery cell is located is switched to a parallel mode for charging. Therefore, the embodiment can adopt high-power charging in the early stage of charging, which is beneficial to improving the charging speed; adopt low-power to charge in the later stage of charging, the charging data of balanced each electric core is favorable to reducing electric core overcharge danger, promotes battery safety.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flow chart illustrating a charging method according to an exemplary embodiment.
Fig. 2 is a flow diagram illustrating series mode charging according to an example embodiment.
Fig. 3 is a circuit diagram illustrating a plurality of cells according to an example embodiment.
Fig. 4 is an equivalent diagram illustrating a series connection of cells according to an exemplary embodiment.
Fig. 5 is a flow diagram illustrating parallel mode charging according to an example embodiment.
Fig. 6 is an equivalent diagram illustrating cell parallel connections according to an exemplary embodiment.
Fig. 7 to 9 are block diagrams illustrating a charging apparatus according to an exemplary embodiment.
FIG. 10 is a block diagram illustrating an electronic device in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The following exemplary described embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure as recited in the claims below.
When the cells are charged in series, the two cells have different voltages due to different residual capacities and/or different internal impedances of the two cells, so that the cells with higher voltages are overcharged or even damaged.
In order to solve the above technical problem, an embodiment of the present disclosure provides a charging method, and fig. 1 is a flowchart illustrating a charging method according to an exemplary embodiment, which may be applied to an electronic device such as a smart phone, a tablet computer, and a personal computer, where the electronic device includes a plurality of battery cells. Referring to fig. 1, a charging method includes steps 11 to 13, wherein:
in step 11, in response to determining that the charging operation is detected, the plurality of cells are switched to be charged in the series mode.
In this embodiment, electronic device can be connected with outside battery charging outfit through self interface module (for example Mini USB interface module, Micro USB interface module, Type-C interface module, Lighting interface module) or wireless module, and after connecting, electronic device and outside battery charging outfit can shake hands according to predetermined charging protocol (for example quick charge QC, power transmission PD etc.), and after the success of shaking hands, electronic device can receive the power of battery charging outfit output.
It can be understood that the process of handshaking between the electronic device and the charging device can be used as a process of detecting a charging operation by the electronic device, and when the handshaking fails, it indicates that the charging channel is failed to be established, and when the handshaking succeeds, it indicates that the charging channel is successfully established. When the charging channel is established successfully, the electronic device may determine that a charging operation is detected.
In this embodiment, the electronic device may switch the plurality of battery cells to be charged in the series mode in response to determining that the charging operation is detected. Referring to fig. 2, in step 21, the electronic device may send control information to each switching device, where the control information is used to turn on or off each switching device, so that the plurality of battery cells are switched to the series mode. In step 22, the electronic device may transmit first charging control information to the charging device to cause the charging device to output a charging voltage and a charging current corresponding to the series mode.
In this embodiment, the number of the plurality of battery cells may be set according to a specific scenario, for example, 2, 3, 4, 8, or even more, and is not limited herein. And a plurality of switching devices are further arranged in the electronic equipment, the switching devices can be switched on or off, the connection relation of the plurality of battery cells can be adjusted by controlling the switching devices to be switched on or off, so that the plurality of battery cells are switched to a series mode and a parallel mode, wherein the series mixed mode also belongs to the parallel mode.
Taking an example that the electronic device includes 2 cells (strings), referring to fig. 3, the electronic device may control the first switching device K1 to be turned on, and simultaneously control the second switching device K2 and the third switching device K3 to be turned off, where an equivalent circuit is shown in fig. 4. Then, the electronic device may transmit the first charging control information to the charging device, for example, the processor of the electronic device transmits the first charging control information to the charging device through the charging circuit, so that the charging device outputs the charging voltage and the charging current corresponding to the series mode.
The first switching device K1, the second switching device K2, and the third switching device K3 may be implemented by using a transistor, a field effect transistor, or the like, and are not limited herein.
Taking an example that the electronic device includes 4 battery cells, at this time, the battery cell 1 and the battery cell 2 may be regarded as a battery cell string, that is, the battery cell 1 may include 2 battery cells 1A and 1B, and the battery cell 2 may include 2 battery cells 2A and 2B. Taking the electric core 1 as an example, the circuit connection mode of the electric core 1A and the electric core 1B may refer to the connection mode of the electric core 1 and the electric core 2, and by controlling on and off of the switch device, 4 electric cores in total of the electric core 1A, the electric core 1B, the electric core 2A and the electric core 2B may be charged in series.
In step 12, charge data of each battery cell in the series mode in the charging process is acquired.
In this embodiment, when charging in the series mode, the electronic device may detect charging data of each battery cell by using the electricity meter. Wherein the charging data may include one of: relative voltage, relative electric quantity, absolute voltage, absolute electric quantity. The skilled person can select suitable charging data according to specific scenarios, and the corresponding scheme falls within the scope of the present disclosure.
In step 13, when it is determined that the charging data of at least one battery cell in any one series branch satisfies a first preset condition, at least the battery cell of the series branch in which the at least one battery cell is located is switched to a parallel mode for charging.
In this embodiment, a first preset condition may be stored in the electronic device, where the first preset condition is that a difference between charging data of two battery cells is greater than a preset first charging data threshold, the difference between charging data of two battery cells is greater than the first charging data threshold and is maintained for a preset time, and charging data of any battery cell exceeds a preset second charging data threshold. The preset duration value range is 5-50 seconds, and selection can be performed according to specific scenes.
After acquiring the charging data, the electronic device may process the charging data of the two battery cells in the same serial branch, for example, calculate a difference value between the charging data of the two battery cells; and judging whether the difference value of the charging data meets a first preset condition. When the difference value of the charging data is smaller than or equal to a first charging data threshold value, determining that a first preset condition is not met; and when the difference value of the charging data is larger than a first charging data threshold value, determining that a first preset condition is met. When the first preset condition is not met, the electronic equipment can return to the step 12; when the first preset condition is met, the electronic device may switch the multiple battery cells of the branch where the two battery cells are located to the parallel mode for charging, or the electronic device may switch all the battery cells to the parallel mode for charging.
After the charging data is acquired, the electronic device may determine whether the charging data of each battery cell exceeds a second charging data threshold, for example, the voltage of the battery cell with the largest absolute voltage is 4.2V, the second charging data threshold is 4.205V, at this time, the charging data of each battery cell does not satisfy the first preset condition, and when the voltage of the battery cell with the largest absolute voltage is increased to 4.21V, it is determined that the charging data of the battery cell satisfies the first preset condition. When the first preset condition is not met, the electronic equipment can return to the step 12; when the first preset condition is met, the electronic device may switch a plurality of battery cells of the branch where the battery cell is located to a parallel mode for charging, or the electronic device may switch all the battery cells to the parallel mode for charging.
Taking the example of switching all the battery cells to the parallel mode for charging, referring to fig. 5, in step 51, the electronic device may send control information to each switching device, where the control information is used to turn on or off each switching device, so that the battery cells of the serial branch where at least one battery cell is located are switched to the parallel mode. In step 52, the electronic device sends second charging control information to the charging device, so that the charging device outputs a charging voltage and a charging current corresponding to the parallel mode.
Continuing to take the example that the electronic device includes 2 electric cores, the electronic device may control the first switching device K1 to be turned off, and simultaneously control the second switching device K2 and the third switching device K3 to be turned on, and an equivalent circuit is as shown in fig. 6. Then, the electronic device may transmit the second charging control information to the charging device to cause the charging device to output the charging voltage and the charging current corresponding to the parallel mode.
Continuing to take the example that the electronic device includes 4 cells, switching the 4 cells to the parallel mode includes:
in an example, by controlling the on and off of the switching device, 4 cells are divided into 2 strings, that is, the cell 1A and the cell 1B are connected in series to obtain a first cell string, the cell 2A and the cell 2B are connected in series to obtain a second cell string, the first cell string and the second cell string are connected in series and parallel to form the structure shown in fig. 6, and at this time, the 4 cells form the structures of series connection and parallel connection. And then, taking each battery cell string as a control part, and continuously executing the steps 11 to 13 until 4 battery cells are all connected in parallel. In this example, switching to the association mode may be understood when the cells have a parallel structure.
In another example, 4 cells are directly switched to the parallel mode by controlling the switching devices to be turned on and off.
To this end, in the embodiment of the present disclosure, when it is determined that the charging operation is detected, the plurality of battery cells may be switched to the series connection mode for charging in response to determining that the charging operation is detected; then, acquiring charging data of each battery cell in a series mode in the charging process; when it is determined that the charging data of at least one battery cell in any one series branch meets a first preset condition, at least the battery cell of the series branch in which the at least one battery cell is located is switched to a parallel mode for charging. Therefore, the embodiment can adopt high-power charging in the early stage of charging, which is beneficial to improving the charging speed; adopt low-power to charge in the later stage of charging, the charging data of balanced each electric core is favorable to reducing electric core overcharge danger, promotes battery safety.
Fig. 7 is a block diagram of a charging apparatus according to an exemplary embodiment, which is applied to an electronic device including a plurality of battery cells, and referring to fig. 7, the charging apparatus includes:
a series charging module 71, configured to switch the plurality of battery cells to charge in a series mode in response to determining that a charging operation is detected;
the parameter acquisition module 72 is configured to acquire charging data of each battery cell in a series mode in a charging process;
the parallel charging module 73 is configured to, when it is determined that the charging data of at least one battery cell in any one of the series branches meets a first preset condition, switch at least the battery cell of the series branch in which the at least one battery cell is located to a parallel mode for charging.
In one embodiment, referring to fig. 8, the series charging module 71 includes:
the switching device control unit 81 is configured to send control information to each switching device, where the control information is used to turn on or off each switching device, so that the plurality of battery cells are switched to a series mode;
a control information sending unit 82, configured to send first charging control information to a charging device, so that the charging device outputs a charging voltage and a charging current corresponding to the series mode.
In one embodiment, the charging data includes at least one of: relative voltage, relative electric quantity, absolute voltage, absolute electric quantity.
In an embodiment, the charging data satisfying the first preset condition includes one of: the difference value of the charging data of the two battery cores is greater than a preset first charging data threshold value, the difference value of the charging data of the two battery cores is greater than the first charging data threshold value and keeps a preset time length, and the charging data of any battery core exceeds a preset second charging data threshold value.
In one embodiment, referring to fig. 9, the parallel charging module 73 includes:
the switching device control unit 91 is configured to send control information to each switching device, where the control information is used to turn on or off each switching device, so that the electric core of the serial branch where the at least one electric core is located is switched to a parallel mode;
a control information sending unit 92, configured to send second charging control information to a charging device, so that the charging device outputs a charging voltage and a charging current corresponding to the parallel mode.
It can be understood that the apparatuses provided in the embodiments of the present disclosure correspond to the embodiments of the methods described above, and specific contents may refer to the contents of the embodiments of the methods, which are not described herein again.
FIG. 10 is a block diagram illustrating an electronic device in accordance with an example embodiment. For example, the electronic device 1000 may be a smartphone, a computer, a digital broadcast terminal, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
Referring to fig. 10, electronic device 1000 may include one or more of the following components: processing component 1002, memory 1004, power component 1006, multimedia component 1008, audio component 1010, input/output (I/O) interface 1012, sensor component 1014, communication component 1016, and image capture component 1018.
The processing component 1002 generally operates the electronic device 1000 as a whole, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1002 may include one or more processors 1020 to execute computer programs. Further, processing component 1002 may include one or more modules that facilitate interaction between processing component 1002 and other components. For example, the processing component 1002 may include a multimedia module to facilitate interaction between the multimedia component 1008 and the processing component 1002.
The memory 1004 is configured to store various types of data to support operations at the electronic device 1000. Examples of such data include computer programs for any application or method operating on the electronic device 1000, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1004 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 1006 provides power to the various components of the electronic device 1000. The power components 1006 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the electronic device 1000. The power supply assembly 1006 may include a power chip, and the controller may communicate with the power chip to control the power chip to turn on or off the switching device, so that the battery supplies power or does not supply power to the motherboard circuit.
The multimedia component 1008 includes a screen that provides an output interface between the electronic device 1000 and the target object. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a target object. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
The audio component 1010 is configured to output and/or input audio signals. For example, the audio component 1010 may include a Microphone (MIC) configured to receive external audio signals when the electronic device 1000 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 1004 or transmitted via the communication component 1016. In some embodiments, audio component 1010 also includes a speaker for outputting audio signals.
I/O interface 1012 provides an interface between processing component 1002 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc.
The sensor assembly 1014 includes one or more sensors for providing various aspects of status assessment for the electronic device 1000. For example, the sensor assembly 1014 may detect an open/closed state of the electronic device 1000, a relative positioning of components, such as a display and keypad of the electronic device 1000, a change in position of the electronic device 1000 or a component, a presence or absence of a target object in contact with the electronic device 1000, an orientation or acceleration/deceleration of the electronic device 1000, and a change in temperature of the electronic device 1000.
The communication component 1016 is configured to facilitate wired or wireless communication between the electronic device 1000 and other devices. The electronic device 1000 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1016 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communications component 1016 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the electronic device 1000 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components.
In an exemplary embodiment, a non-transitory readable storage medium is also provided, such as the memory 1004 including instructions, that includes an executable computer program that is executable by the processor. The readable storage medium may be, among others, ROM, Random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A charging method is applied to an electronic device, the electronic device comprises a plurality of battery cells, and the method comprises the following steps:
in response to determining that a charging operation is detected, switching the plurality of cells to charge in a series mode;
acquiring charging data of each battery cell in a series mode in a charging process;
when it is determined that the charging data of at least one battery cell in any one series branch meets a first preset condition, at least the battery cell of the series branch in which the at least one battery cell is located is switched to a parallel mode for charging.
2. The charging method of claim 1, wherein switching the plurality of cells to charge in a series mode comprises:
sending control information to each switching device, wherein the control information is used for switching on or off each switching device so that the plurality of battery cells are switched to a series mode;
and sending first charging control information to a charging device so that the charging device outputs a charging voltage and a charging current corresponding to the series mode.
3. The charging method of claim 1, wherein the charging data comprises at least one of: relative voltage, relative electric quantity, absolute voltage, absolute electric quantity.
4. The charging method according to claim 1, wherein the charging data satisfying a first preset condition comprises one of: the difference value of the charging data of the two battery cores is greater than a preset first charging data threshold value, the difference value of the charging data of the two battery cores is greater than the first charging data threshold value and keeps a preset time length, and the charging data of any battery core exceeds a preset second charging data threshold value.
5. The charging method according to claim 1, wherein at least switching the cells of the series branch in which the at least one cell is located to be charged in a parallel mode comprises:
sending control information to each switching device, wherein the control information is used for switching on or off each switching device so that the battery cell of the series branch where the at least one battery cell is located is switched to a parallel mode;
and sending second charging control information to the charging equipment so that the charging equipment outputs the charging voltage and the charging current corresponding to the parallel mode.
6. A charging device is applied to electronic equipment, wherein the electronic equipment comprises a plurality of battery cores, and the device comprises:
a series charging module configured to switch the plurality of battery cells to charge in a series mode in response to determining that a charging operation is detected;
the parameter acquisition module is used for acquiring charging data of each battery cell in a series mode in the charging process;
the parallel charging module is used for at least switching the battery cell of the serial branch where the battery cell is located to charge in a parallel mode when it is determined that the charging data of at least one battery cell in any serial branch meets a first preset condition.
7. The charging device of claim 6, wherein the series charging module comprises:
the switching device control unit is used for sending control information to each switching device, and the control information is used for switching on or off each switching device so that the plurality of battery cells are switched to a series mode;
and the control information sending unit is used for sending first charging control information to the charging equipment so as to enable the charging equipment to output the charging voltage and the charging current corresponding to the series mode.
8. The charging device of claim 6, wherein the charging data comprises at least one of: relative voltage, relative electric quantity, absolute voltage, absolute electric quantity.
9. The charging device of claim 6, wherein the charging data satisfying the first preset condition comprises one of: the difference value of the charging data of the two battery cores is greater than a preset first charging data threshold value, the difference value of the charging data of the two battery cores is greater than the first charging data threshold value and keeps a preset time length, and the charging data of any battery core exceeds a preset second charging data threshold value.
10. The charging device of claim 6, wherein the parallel charging module comprises:
the switching device control unit is used for sending control information to each switching device, and the control information is used for switching on or off each switching device so that the battery cell of the serial branch where the at least one battery cell is located is switched to a parallel mode;
and the control information sending unit is used for sending second charging control information to the charging equipment so as to enable the charging equipment to output the charging voltage and the charging current corresponding to the parallel mode.
11. An electronic device, comprising:
a processor;
a memory for storing a computer program executable by the processor;
the processor is configured to execute the computer program in the memory to implement the steps of the method of any of claims 1 to 5.
12. A readable storage medium having stored thereon an executable computer program, wherein the computer program when executed implements the steps of the method of any one of claims 1 to 5.
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| CN114123385A (en) * | 2021-10-30 | 2022-03-01 | 荣耀终端有限公司 | Charging and discharging circuit, charging method and electronic equipment |
| WO2023220979A1 (en) * | 2022-05-18 | 2023-11-23 | 宁德时代新能源科技股份有限公司 | Charging method and apparatus, and electronic device and storage medium |
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