WO2019165605A1

WO2019165605A1 - Electronic device, battery charging method therefor, and storage medium

Info

Publication number: WO2019165605A1
Application number: PCT/CN2018/077597
Authority: WO
Inventors: 郭启明; 郭继龙
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-02-28
Filing date: 2018-02-28
Publication date: 2019-09-06
Also published as: CN110770998A

Abstract

An electronic device and a battery charging method therefor. The method comprises: when a battery is in a constant current charging state, monitoring the charging voltage of the battery in real time (103); determining whether the detected charging voltage reaches a safe cutoff voltage of the battery (104); If the charging voltage does not reach the safe cutoff voltage, adjusting the charging current of the battery so that the actual charging power of the battery reaches a preset maximum threshold (105). The battery charging method adjusts the charging current during the constant current charging phase to increase the charging power of the battery during the constant current charging phase, thereby increasing the energy absorbed by the battery during the constant current charging phase, reducing the energy required to be absorbed during the constant current charging phase, shortening the time of constant voltage charging, and further shortening the total charging time and increasing the charging speed.

Description

Electronic device and battery charging method thereof, and storage medium

Technical field

The present application relates to the field of electronic technologies, and in particular, to an electronic device and a battery charging method thereof, and a computer readable storage medium.

Background technique

At present, electronic devices such as mobile phones and tablet computers generally use lithium batteries for power supply. The charging process of existing lithium batteries is generally divided into three stages: pre-charging, constant-current charging, and constant-voltage charging. Among them, in the pre-charging stage, the charging voltage and the charging current rise rapidly, and the charging duration is very short; in the constant current charging phase, the charging voltage is slowly increased, the charging current remains unchanged, and the energy of the battery charged at this stage can reach the total battery. 70% of the power; in the constant voltage charging phase, the charging voltage remains unchanged, the charging current is gradually reduced, and the charging is stopped until the off current is reached.

Since the charging power of the battery in the constant current charging phase is equal to the product of the charging current and the charging voltage, and the charging current remains unchanged, the charging voltage generally reaches a peak at the end of the constant current charging phase. It can be seen that the charging of the battery in the constant current charging phase is observed. There is still room for improvement in power.

Summary of the invention

The present application provides an electronic device, a battery charging method thereof, and a computer readable storage medium, which can shorten the charging time of the battery.

In a first aspect, the present application provides a battery charging method, including:

When the battery is in a constant current charging state, the charging voltage of the battery is detected in real time;

Determining whether the detected charging voltage reaches a safe cutoff voltage of the battery;

If the charging voltage does not reach the safety cut-off voltage, the charging current of the battery is adjusted such that the actual charging power of the battery reaches a preset maximum threshold.

In a second aspect, the present application provides an electronic device including a detecting device, a current output device, a processor, a memory, and a computer program stored in the memory. The processor is configured to execute a computer program stored in the memory to perform the following steps:

Obtaining a charging voltage of the battery detected by the detecting device in real time when the battery is in a constant current charging state;

In a third aspect, the present application provides a computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the steps of the battery charging method of any of the above embodiments.

The electronic device and the battery charging method thereof provided by the present application can increase the charging power of the battery in the constant current charging phase by adjusting the charging current in the constant current charging phase, thereby increasing the energy absorbed by the battery during the constant current charging phase, and can reduce The energy required to be absorbed in the constant voltage charging phase shortens the time of constant voltage charging, thereby shortening the total charging time and increasing the charging speed.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present application, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic flow chart of a battery charging method according to an embodiment of the present application.

2 is a graph showing a relationship between a charging current and a charging voltage of a battery in the prior art as a function of charging time.

FIG. 3 is a schematic diagram showing the relationship between the charging power of the battery in the prior art and the charging time.

FIG. 4 is a schematic diagram showing a simulation curve of a charging current and a charging voltage as a function of charging time in a constant current charging process of a battery according to an embodiment of the present application.

FIG. 5 is a schematic diagram of a refinement process of step 104 in FIG. 1.

FIG. 6 is a schematic diagram of another refinement process of step 104 in FIG. 1.

FIG. 7 is a schematic diagram of another refinement process of step 104 in FIG. 1.

FIG. 8 is a schematic diagram of a fitting curve of a charging current of a battery according to an embodiment of the present application during constant current charging.

FIG. 9 is a schematic structural diagram of a battery charging device according to an embodiment of the present application.

FIG. 10 is a structural block diagram of an electronic device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application are clearly and completely described in conjunction with the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

Please refer to FIG. 1 , which is a schematic flowchart diagram of a battery charging method according to an embodiment of the present application. The battery charging method is applied to an electronic device, wherein the electronic device may be a computer device such as a smart phone, a PDA, or a tablet computer. It should be noted that the battery charging method of the embodiment of the present application is not limited to the steps and the sequence in the flowchart shown in FIG. 1 . The steps in the illustrated flow diagrams can be added, removed, or changed in order, depending on the requirements. As shown in FIG. 1, the battery charging method includes the following steps:

In step 101, the battery is charged.

Step 102: Determine whether the battery is in a constant current charging state. If the battery is in a constant current charging state, step 103 is performed. If the battery is not in the constant current charging state, the flow returns to step 102.

In step 103, the charging voltage of the battery is detected in real time.

As shown in FIG. 2, the charging process of the battery is generally divided into a pre-charging phase I, a constant current charging phase II, and a constant voltage charging phase III. In the pre-charging phase I, the battery voltage value U _bat (ie, charging voltage) and the battery current value I _bat (ie, charging current) rapidly rise, and the charging duration is short; after the pre-charging phase I ends, the constant current charging phase is entered. II (fast charging phase); in the constant current charging phase II, the charging voltage is slowly increased, the charging current remains unchanged; when the charging voltage reaches the cutoff voltage U _max , the constant voltage charging phase III is entered, During the constant voltage charging phase III, the charging voltage remains unchanged and the charging current is gradually reduced until the battery is fully charged.

During the constant current charging process, the battery can be quickly charged due to the large current charging, which saves the charging time of the battery. In the constant voltage charging phase III, since the charging current of the battery is small, and as time continues, the charging current becomes smaller and smaller, so the charging speed in the constant voltage charging phase III is slower. In order to increase the charging speed of the battery, the requirement should be met by extending the time of constant current charging and/or shortening the time of constant voltage charging.

Since the charging current of the battery remains unchanged during the constant current charging phase II, the charging voltage generally reaches a peak at the end of the constant current charging phase II, and the charging power of the battery is equal to the product of the charging current and the charging voltage. As shown by the curve P1 of Fig. 3, the charging power of the battery also reaches a peak at the end of the constant current charging phase II. It can be seen that during most of the constant current charging phase II, the characteristics of the battery and the output capability of the charging device have not been fully utilized, and the charging power of the battery has a certain room for improvement, for example, the charging power can be increased to a curve. The ideal value shown in P2.

In the embodiment of the present application, the charging current of the constant current charging process is gradually adjusted, and the charging power of the battery is increased during the constant current charging phase, thereby increasing the energy absorbed by the battery during the constant current charging phase, which can be reduced in the constant voltage charging phase. The energy that needs to be absorbed shortens the time of constant voltage charging, thereby shortening the total charging time and increasing the charging speed.

Step 104: Determine whether the detected charging voltage reaches a safe cutoff voltage of the battery. If the charging voltage of the battery does not reach the safety cutoff voltage, step 105 is performed. If the charging voltage of the battery reaches the safety cutoff voltage, step 106 is performed.

In this embodiment, the safety cutoff voltage is a cutoff voltage set when the battery enters a constant current charge, and the safe cutoff voltage is generally smaller than a safe voltage of the battery. Among them, the safe voltage of the battery is determined by the battery material of the battery. For example, depending on the material of the battery, the safe voltage of the battery can be 4.3V, 4.4V, 4.5V, and the like. It can be understood that in order to ensure the safety of constant voltage charging, the safety cut-off voltage is generally set to be less than the safe voltage of the battery. For example, the safety cut-off voltage can be 50 millivolts (MV) less than the safe voltage of the battery.

Step 105: Adjust a charging current of the battery, so that an actual charging power of the battery reaches a preset maximum threshold. The flow returns to step 103 to continue detecting the charging voltage of the battery in real time.

In some embodiments, the maximum threshold for the charging power of the battery can be determined based on the charging device, such as the output capabilities of the adapter, the charging line, and the tolerance of the battery. Wherein, the maximum threshold of the charging power of the battery may be obtained according to the factory test data of the battery.

It can be understood that, in the constant current charging process, since the charging voltage is gradually increased, and the maximum threshold of the charging power of the battery is fixed, in order to make the actual charging power of the battery reach the maximum threshold as much as possible, it is required. The charging current is gradually adjusted according to the changing charging voltage. Fig. 4 is a graph showing the relationship between the charging current and the charging voltage of the battery in the ideal state under constant current charging.

Step 106, the battery is subjected to constant voltage charging with the safety cutoff voltage.

The battery charging method provided by the embodiment of the present application adjusts the charging current in the constant current charging phase to increase the charging power of the battery in the constant current charging phase, thereby increasing the energy absorbed by the battery during the constant current charging phase, and reducing the constant voltage. The energy that needs to be absorbed during the charging phase shortens the time of constant voltage charging, thereby shortening the total charging time and increasing the charging speed.

In some embodiments, the step 105 may include: adjusting a current threshold according to a maximum threshold of a charging power of the battery, a current charging voltage of the battery, and a correspondence between a charging current and a charging power and a charging voltage. The charging current is such that the current charging power of the battery reaches the maximum threshold.

Specifically, in the first embodiment, referring to FIG. 5, the step 104 may include:

Step 501: Acquire a current charging voltage of the battery at preset time intervals.

Step 502: Calculate a charging current of the battery according to a maximum threshold of charging power of the battery, the obtained current charging voltage, and a correspondence between a charging current and a charging power and a charging voltage, where The product of the current charging voltage and the calculated charging current is equal to the maximum threshold of the charging power of the battery.

Step 503: Adjust an output current of the current output device according to the calculated charging current, so that a current charging power of the battery reaches the maximum threshold. The flow returns to the step 501 and continues to perform the steps 501 to 503 until the charging voltage of the battery reaches the safety cutoff voltage.

It can be understood that, in order to make the current charging power of the battery reach the maximum threshold as much as possible, the preset time interval should be shortened as much as possible, for example, setting the preset time interval to 5 seconds, 10 seconds. , 30 seconds, 1 minute, etc., so that the current charging voltage of the battery can be sampled as much as possible.

In the second embodiment, referring to FIG. 6, the step 104 may include:

Step 601: preset a charging parameter table, where the charging parameter table is used to record a plurality of charging parameters of the battery during a constant current charging process, wherein each of the charging parameters includes a charging voltage and a charging current. The product of the charging voltage and the charging current in each set of said charging parameters is equal to the maximum threshold of the charging power of said battery.

In the second implementation manner, the preset charging parameter table specifically includes:

Pre-detecting a plurality of charging voltages of the battery during constant current charging;

Calculating a charging current corresponding to each charging voltage detected in advance according to a maximum threshold value of the charging power of the battery, each charging voltage detected in advance, and a correspondence relationship between the charging current and the charging power and the charging voltage, Wherein the product of each pre-detected charging voltage and the charging current corresponding to the pre-detected charging voltage is equal to a maximum threshold of the charging power of the battery;

A charging parameter table is set, and a plurality of sets of charging parameters are recorded in the charging parameter table, wherein each set of the charging parameters includes a pre-detected charging voltage and a charging current corresponding to the pre-detected charging voltage.

Step 602: Acquire a current charging voltage of the battery.

Step 603: Acquire a charging current corresponding to the current charging voltage from the charging parameter table.

Step 604, adjusting an output current of the current output device according to the obtained charging current, so that a current charging power of the battery reaches the maximum threshold. The flow returns to the step 602, and continues to perform the steps 602-604, that is, continues to acquire the new current charging voltage of the battery, and continues to acquire the new current charging voltage from the charging parameter table. The charging current is adjusted, and the output current of the current output device is adjusted according to the charging current that is continuously obtained, so that the current charging power of the battery reaches the maximum threshold until the charging voltage of the battery reaches the safety cut-off voltage.

It can be understood that, in the second embodiment, in the initial state of entering the constant current charging process, if the charging current corresponding to the current charging voltage is not obtained from the charging parameter table, The initial charging current is applied to the battery for constant current charging, and returns to the step 602 to continue acquiring the new current charging voltage of the battery.

It can be understood that, after the output current of the current output device is adjusted at least once according to the obtained charging current, if the charging current corresponding to the new current charging voltage is not obtained from the charging parameter table, continue The charging current obtained in the previous time controls the output current of the current output device, and returns to the step 602 to continue acquiring the new current charging voltage of the battery.

It can be understood that, in the second embodiment, since the charging parameter table records charging parameters corresponding to the battery at a plurality of times during the constant current charging process, it is only necessary to continue according to the charging process. The new current charging voltage is used to continue to call the data, that is, the corresponding charging current is continuously obtained from the charging parameter table according to the new current charging voltage that is continuously acquired, so that the output current of the current output device can be adjusted, so that The current charging power of the battery reaches the maximum threshold.

In the third embodiment, referring to FIG. 7, the step 104 may include:

Step 701: preset a charging parameter table, where the charging parameter table is used to record a plurality of charging parameters of the battery during a constant current charging process, wherein each of the charging parameters includes a charging voltage and a charging current. The product of the charging voltage and the charging current in each set of said charging parameters is equal to the maximum threshold of the charging power of said battery.

For details of the refinement process of setting the charging parameter table, refer to the specific introduction of the second embodiment described above.

In the third embodiment, each set of charging parameters corresponds to a charging time, and a preset time threshold is set between two adjacent charging moments of the plurality of charging moments corresponding to the plurality of charging parameters, for example, FIG. 8 The preset time threshold can be set to Δt. It can be understood that after determining the charging current corresponding to each charging time, the charging current I _{bat in} each unit time Δt can be determined, for example, as shown by the fitting curve I1 in FIG. 8 . It can be understood that when the value of the preset time threshold Δt is sufficiently small, the charging current changes with the charging time as shown by the curve I2.

Step 702: Acquire a current charging voltage of the battery.

Step 703: Acquire a charging current corresponding to the current charging voltage from the charging parameter table.

Step 704, adjusting an output current of the current output device according to the obtained charging current, so that a current charging power of the battery reaches the maximum threshold.

Step 705: After the preset time threshold, continue to obtain a charging current corresponding to the next charging time from the charging parameter table.

Step 706: Re-adjust the output current of the current output device according to the continuously obtained charging current, so that the current charging power of the battery reaches the maximum threshold. The flow returns to the step 705 and continues to perform the steps 705-706 until the charging voltage of the battery reaches the safety cut-off voltage.

It can be understood that, in the third embodiment, the charging corresponding to the current charging voltage is acquired from the charging parameter table at least once due to a preset time threshold between two adjacent charging moments. After the current, it is only necessary to continue to call the data during the charging process, that is, after the preset time threshold is continued, the charging current corresponding to the next charging time is continuously obtained from the charging parameter table, and the The output current of the current output device causes the current charging power of the battery to reach the maximum threshold without acquiring the current charging voltage of the battery each time the charging current is obtained from the charging parameter table.

The battery charging method provided by the embodiment of the present application, for the conventional charging method, fails to fully utilize the charging device in the constant current charging phase of the battery, for example, the shortcoming of the output capability of the adapter, and the charging current is configured by segmentation timing, and the ideal method is fitted. The charging current curve substantially achieves the purpose of constant power charging, thereby maximally utilizing the output capability of the current output device, increasing the energy absorbed by the battery during constant current charging, and further accelerating the charging speed.

Please refer to FIG. 9 , which is a schematic structural diagram of a battery charging device 10 according to an embodiment of the present application. The battery charging device 10 is applied to the above electronic device. In this embodiment, the electronic device includes at least a detecting device, a current output device, and a voltage output device, wherein the detecting device is configured to detect a charging voltage/charging current of the battery in real time when the battery is charged. The current output device is configured to output a charging current to charge the battery. The voltage output device is configured to output a charging current to charge the battery. The detecting device may be specifically a voltage/current detecting circuit/instrument, and the current output device and the voltage output device may be specifically a charging circuit.

The battery charging device 10 can include one or more modules stored in a memory of the electronic device and configured to be one or more processors (this embodiment is a processor) ) Execution to complete this application. For example, referring to FIG. 9 , the battery charging device 10 may include a setting module 11 , an obtaining module 12 , a comparing module 13 , an adjusting module 14 , and a calculating module 15 . The module referred to in the embodiments of the present application may be a program segment that performs a specific function, and is more suitable than the program to describe the execution process of the software in the processor. It can be understood that, corresponding to the battery charging method of each embodiment described above, the battery charging device 10 may include some or all of the functional modules shown in FIG. 9, and the functions of the modules 11-15 will be specifically described below. Introduction.

In the embodiment, the setting module 11 is configured to set a maximum threshold of the charging power of the battery. In some embodiments, the maximum threshold for the charging power of the battery can be determined based on the charging device, such as the output capabilities of the adapter, the charging line, and the tolerance of the battery. Wherein, the maximum threshold of the charging power of the battery may be obtained according to the factory test data of the battery.

The obtaining module 12 is configured to acquire a charging voltage of the battery detected by the detecting device in real time when the battery is in a constant current charging state.

The comparison module 13 is configured to compare the charging voltage with a safety cutoff voltage of the battery to determine whether the detected charging voltage reaches a safe cutoff voltage of the battery. In this embodiment, the safety cutoff voltage is a cutoff voltage set when the battery enters a constant current charge, and the safe cutoff voltage is generally smaller than a safe voltage of the battery.

The adjusting module 14 is configured to adjust a charging current of the battery when the charging voltage of the battery does not reach the safety cutoff voltage, so that an actual charging power of the battery reaches the maximum threshold.

In this embodiment, the adjustment module 14 is further configured to adjust an output voltage of the voltage output device when the charging voltage of the battery reaches the safety cutoff voltage, so as to match the battery with the safety cutoff voltage. Perform constant voltage charging.

The battery charging device provided by the embodiment of the present application can adjust the charging current in the constant current charging phase to increase the charging power of the battery in the constant current charging phase, thereby increasing the energy absorbed by the battery during the constant current charging phase, and can reduce the constant voltage. The energy that needs to be absorbed during the charging phase shortens the time of constant voltage charging, which in turn can shorten the total charging time and increase the charging speed.

In some embodiments, the adjusting device 14 can be configured to adjust the maximum threshold value of the charging power of the battery, the current charging voltage of the battery, and a correspondence between the charging current and the charging power and the charging voltage. The charging current currently output by the current output device adjusts the charging current of the battery such that the current charging power of the battery reaches the maximum threshold.

Specifically, in the first embodiment, the acquiring module 12 is further configured to acquire, according to a preset time interval, a current charging voltage of the battery detected by the detecting device in real time.

In the first embodiment, the calculating module 15 is configured to: according to a maximum threshold of charging power of the battery, the obtained current charging voltage, and a correspondence between charging current and charging power and charging voltage Calculating a charging current of the battery, wherein a product of the current charging voltage and the calculated charging current is equal to a maximum threshold of charging power of the battery.

The adjusting module 14 is configured to adjust an output current of the current output device according to the calculated charging current, so that a current charging power of the battery reaches the maximum threshold.

In the second embodiment, the setting module 11 is further configured to preset a charging parameter table, wherein the charging parameter table is used to record multiple sets of charging parameters of the battery during constant current charging, wherein each group The charging parameters each include a charging voltage and a charging current, and a product of a charging voltage and a charging current in each set of the charging parameters is equal to a maximum threshold of charging power of the battery.

Specifically, the acquiring module 12 is further configured to acquire a plurality of charging voltages of the battery that are detected by the detecting device in a constant current charging process.

The calculating module 15 is configured to calculate each of the pre-detected separately according to a maximum threshold of the charging power of the battery, each charging voltage detected in advance, and a correspondence relationship between the charging current and the charging power and the charging voltage. And a charging current corresponding to the charging voltage, wherein a product of each of the pre-detected charging voltage and a charging current corresponding to the pre-detected charging voltage is equal to a maximum threshold of the charging power of the battery.

The setting module 11 is specifically configured to set a charging parameter table, and record multiple sets of charging parameters in the charging parameter table, wherein each set of the charging parameters includes a pre-detected charging voltage and the pre-detected The charging current corresponding to the charging voltage.

The obtaining module 12 is further configured to acquire a current charging voltage of the battery, and obtain a charging current corresponding to the current charging voltage from the charging parameter table.

The adjusting module 14 is configured to adjust an output current of the current output device according to the obtained charging current, so that a current charging power of the battery reaches the maximum threshold.

It can be understood that, in the second embodiment, in the initial state of entering the constant current charging process, if the obtaining module 12 does not obtain the charging corresponding to the current charging voltage from the charging parameter table Current, the adjustment module 14 adjusts the output current of the current output device with a preset initial charging current to perform constant current charging on the battery, and the obtaining module 12 continues to acquire the current charging voltage of the battery. .

It can be understood that, after the adjusting module 14 adjusts the output current of the current output device at least once according to the obtained charging current, if the acquiring module 12 does not acquire the new one from the charging parameter table. The charging current corresponding to the current charging voltage, the adjusting module 14 continues to adjust the output current of the current output device by the charging current acquired by the acquiring module 12, and the acquiring module 12 continues to acquire the battery. Current charging voltage.

In the third embodiment, the setting module 11 is further configured to preset a charging parameter table, wherein the charging parameter table is used to record multiple sets of charging parameters of the battery during constant current charging, wherein each group The charging parameters each include a charging voltage and a charging current, and a product of a charging voltage and a charging current in each set of the charging parameters is equal to a maximum threshold of charging power of the battery. For details of the setting of the charging parameter table, refer to the specific description of the second embodiment.

In the third embodiment, the acquiring module 12 is further configured to continue to acquire a charging current corresponding to a next charging moment from the charging parameter table after the preset time threshold.

The adjustment module 14 is further configured to readjust the output current of the current output device according to the continuously obtained charging current, so that the current charging power of the battery reaches the maximum threshold.

It can be understood that, in the third implementation manner, the acquisition module 12 acquires the current time from the charging parameter table at least once due to a preset time threshold between two adjacent charging moments. After the charging current corresponding to the charging voltage, it is only necessary to continue to call the data during the charging process, that is, after the preset time threshold, the obtaining module 12 continues to obtain the next charging time from the charging parameter table. Corresponding charging current, the output current of the current output device can be readjusted, so that the current charging power of the battery reaches the maximum threshold, without having to obtain a charging current each time from the charging parameter table. Obtain the current charging voltage of the battery.

The battery charging device provided by the embodiment of the present application, for the conventional charging method, fails to fully utilize the charging device in the constant current charging phase of the battery, for example, the shortcoming of the output capability of the adapter, and the charging current is configured by segmentation timing, and the ideal method is fitted. The charging current curve substantially achieves the purpose of constant power charging, thereby maximally utilizing the output capability of the current output device, increasing the energy absorbed by the battery during constant current charging, and further accelerating the charging speed.

The embodiment of the present application further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and operable on the processor, where the processor executes the program to implement the foregoing embodiments. The steps of the battery charging method.

FIG. 10 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present application. As shown in FIG. 10, the electronic device 100 includes at least a processor 20, a memory 30, a computer program 40 (eg, a battery charging program) stored in the memory 30 and operable on the processor 20, and a detecting device. 60. Current output device 70 and voltage output device 80.

The electronic device 100 may be a computer device such as a smart phone, a PDA, or a tablet computer. For a detailed description of the detecting device 60, the current output device 70, and the voltage output device 80, refer to the related descriptions of the detecting device, the current output device, and the voltage output device mentioned in the foregoing embodiment of the battery charging device 10. In order to save space and avoid duplication, we will not repeat them here.

It can be understood by those skilled in the art that the schematic diagram 10 is merely an example of the electronic device 100 used to implement the battery charging method of the present application, and does not constitute a limitation on the electronic device 100, and may include more or less than the illustration. Components, or combinations of certain components, or different components, such as the electronic device 100 may also include input and output devices, network access devices, and the like.

When the processor 20 executes the computer program 40, the steps in the foregoing embodiments of the respective battery charging methods are implemented, such as steps 101-105 shown in FIG. 1, or steps 501-503 shown in FIG. 5, or FIG. Steps 601 to 604 are shown, or steps 701 to 706 shown in FIG. Alternatively, when the processor 20 executes the computer program 40, the functions of the modules/units, such as the modules 11-15, in the embodiment of the battery charging device 10 described above are implemented.

Illustratively, the computer program 40 can be partitioned into one or more modules/units that are stored in the memory 30 and executed by the processor 20 to complete This application. The one or more modules/units may be a series of computer program 40 instruction segments capable of performing a particular function for describing the execution of the computer program 40 in the electronic device 100. For example, the computer program 40 can be divided into the setting module 11, the obtaining module 12, the comparing module 13, the adjusting module 14, and the calculating module 15 in FIG. 9. For the specific functions of each module 11-15, refer to the foregoing detailed description. To save space and avoid duplication, I won't go into details here.

The so-called processor 20 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), and off-the-shelf programmable Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The processor 20 is a control center of the electronic device 100, and connects the entire battery charging device 10/ with various interfaces and lines. Various parts of the electronic device 100.

The memory 30 can be used to store the computer program 40 and/or modules/units by running or executing computer programs 40 and/or modules/units stored in the memory 30, and for invoking storage The data in the memory 30 implements various functions of the battery charging device 10 / electronic device 100. The memory 30 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (for example, a sound playing function, an image playing function, etc.), and the like; the storage data area may be Data created according to the use of the electronic device 100 (for example, audio data, a phone book, data set and acquired by applying the above battery charging method, and the like) are stored. In addition, the memory 30 may include a high-speed random access memory, and may also include a non-volatile memory such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SMC), and a Secure Digital (SD) card. Flash Card, at least one disk storage device, flash device, or other volatile solid-state storage device.

The present application also provides a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of the battery charging method described in the above embodiments.

The battery charging device 10/electronic device 100/computer device integrated module/unit of the present application may be stored in a computer readable storage medium if it is implemented in the form of a software functional unit and sold or used as a standalone product. . Based on such understanding, the present application implements all or part of the flow of the foregoing method embodiments, and may also be completed by a computer program to instruct related hardware, the computer program may be stored in a computer readable storage medium, the computer The steps of the various method embodiments described above may be implemented when the program is executed by the processor. Wherein, the computer program comprises computer program code, which may be in the form of source code, object code form, executable file or some intermediate form. The computer readable medium may include any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM). , random access memory (RAM, Random Access Memory), electrical carrier signals, telecommunications signals, and software distribution media. It should be noted that the content contained in the computer readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in a jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, computer readable media Does not include electrical carrier signals and telecommunication signals.

In the several embodiments provided in the present application, it should be understood that the disclosed battery charging method and apparatus may be implemented in other manners. For example, the battery charging device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division, and may be further divided in actual implementation.

In addition, each functional module in each embodiment of the present application may be integrated in the same processing module, or each module may exist physically separately, or two or more modules may be integrated in the same module. The above integrated modules can be implemented in the form of hardware or in the form of hardware plus software function modules.

It is obvious to those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the appended claims All changes in the meaning and scope of equivalent elements are included in this application. Any reference signs in the claims should not be construed as limiting the claim. In addition, it is to be understood that the word "comprising" does not exclude other elements or steps. A plurality of units or devices recited in the device claims may also be implemented by the same unit or device in software or hardware.

It should be noted that the above embodiments are only used to explain the technical solutions of the present application, and are not limited thereto. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technology of the present application can be applied. Modifications or equivalents of the embodiments are not to be construed as a departure from the spirit and scope of the invention.

Claims

A battery charging method, comprising:

When the battery is in a constant current charging state, the charging voltage of the battery is detected in real time;

Determining whether the detected charging voltage reaches a safe cutoff voltage of the battery;

If the charging voltage does not reach the safety cut-off voltage, the charging current of the battery is adjusted such that the actual charging power of the battery reaches a preset maximum threshold.
The battery charging method according to claim 1, wherein the adjusting the charging current of the battery such that the actual charging power of the battery reaches the maximum threshold comprises:

Adjusting a current charging current according to a maximum threshold of charging power of the battery, a current charging voltage of the battery, and a correspondence between a charging current and a charging power and a charging voltage, so that a current charging power of the battery reaches a current The maximum threshold is stated.
The battery charging method according to claim 2, wherein the adjusting the charging current of the battery such that the actual charging power of the battery reaches the maximum threshold comprises:

Acquiring the current charging voltage of the battery at preset time intervals;

Calculating a charging current of the battery according to a maximum threshold of charging power of the battery, the obtained current charging voltage, and a correspondence relationship between a charging current and a charging power and a charging voltage, wherein the current charging voltage The product of the calculated charging current is equal to the maximum threshold of the charging power of the battery;

The output current of the current output device is adjusted according to the calculated charging current such that the actual charging power of the battery reaches the maximum threshold.
The battery charging method according to claim 2, wherein the adjusting the charging current of the battery such that the actual charging power of the battery reaches the maximum threshold comprises:

a preset charging parameter table, wherein the charging parameter table is used to record a plurality of charging parameters of the battery during a constant current charging process, wherein each of the charging parameters includes a charging voltage and a charging current, each group The product of the charging voltage and the charging current in the charging parameter is equal to a maximum threshold of the charging power of the battery;

Obtaining a current charging voltage of the battery;

Obtaining a charging current corresponding to the current charging voltage from the charging parameter table;

Adjusting the output current of the current output device according to the obtained charging current, so that the actual charging power of the battery reaches the maximum threshold.
The battery charging method according to claim 4, wherein the adjusting the charging current of the battery such that the actual charging power of the battery reaches the maximum threshold further comprises:

Continue to acquire a new current charging voltage of the battery;

Retrieving a charging current corresponding to the new current charging voltage from the charging parameter table;

The output current of the current output device is adjusted according to the charging current that is continuously obtained, so that the current charging power of the battery reaches the maximum threshold.
The battery charging method according to claim 4, wherein each set of charging parameters corresponds to a charging time, and a plurality of sets of said charging parameters correspond to a preset time interval between two adjacent charging moments a threshold, the adjusting a charging current of the battery, and causing the actual charging power of the battery to reach the maximum threshold further includes:

And continuing to acquire, from the charging parameter table, a charging current corresponding to a next charging moment after the preset time threshold;

Re-adjusting the output current of the current output device according to the continuously obtained charging current, so that the current charging power of the battery reaches the maximum threshold.
The battery charging method according to any one of claims 4-6, wherein the preset charging parameter table comprises:

Pre-detecting a plurality of charging voltages of the battery during constant current charging;

Calculating a charging current corresponding to each charging voltage detected in advance according to a maximum threshold value of the charging power of the battery, each charging voltage detected in advance, and a correspondence relationship between the charging current and the charging power and the charging voltage, The product of each pre-detected charging voltage and the charging current corresponding to the pre-detected charging voltage is equal to a maximum threshold of the charging power of the battery;

A charging parameter table is set, and a plurality of sets of charging parameters are recorded in the charging parameter table, wherein each set of the charging parameters includes a pre-detected charging voltage and a charging current corresponding to the pre-detected charging voltage.
The battery charging method according to claim 1, wherein the battery charging method further comprises:

If the charging voltage of the battery reaches the safety cutoff voltage, the battery is subjected to constant voltage charging with the safety cutoff voltage.
An electronic device comprising a detecting device, a current output device, a processor, a memory, and a computer program stored in the memory, wherein the processor is configured to execute a computer program stored in the memory to perform the following steps :

Obtaining a charging voltage of the battery detected by the detecting device in real time when the battery is in a constant current charging state;

Determining whether the detected charging voltage reaches a safe cutoff voltage of the battery;

If the charging voltage does not reach the safety cut-off voltage, the charging current of the battery is adjusted such that the actual charging power of the battery reaches a preset maximum threshold.
The electronic device of claim 9, wherein said processor executing a computer program stored in said memory performs "adjusting a charging current of said battery such that an actual charging power of said battery reaches said maximum threshold When you follow the steps, perform the following steps:

Adjusting a charging current currently output by the current output device according to a maximum threshold of charging power of the battery, a current charging voltage of the battery, and a correspondence relationship between a charging current and a charging power and a charging voltage, to adjust the The charging current of the battery is such that the current charging power of the battery reaches the maximum threshold.
The electronic device of claim 10 wherein said processor executes a computer program stored in said memory to perform "adjusting a charging current of said battery such that said battery's actual charging power reaches said maximum threshold When you follow the steps, perform the following steps:

Obtaining a current charging voltage of the battery detected by the detecting device in real time according to a preset time interval;

Calculating a charging current of the battery according to a maximum threshold of charging power of the battery, the obtained current charging voltage, and a correspondence relationship between a charging current and a charging power and a charging voltage, wherein the current charging voltage The product of the calculated charging current is equal to the maximum threshold of the charging power of the battery;

The output current of the current output device is adjusted according to the calculated charging current such that the actual charging power of the battery reaches the maximum threshold.
The electronic device of claim 10 wherein said processor executes a computer program stored in said memory to perform "adjusting a charging current of said battery such that said battery's actual charging power reaches said maximum threshold When you follow the steps, perform the following steps:

a preset charging parameter table, wherein the charging parameter table is used to record a plurality of charging parameters of the battery during a constant current charging process, wherein each of the charging parameters includes a charging voltage and a charging current, each group The product of the charging voltage and the charging current in the charging parameter is equal to a maximum threshold of the charging power of the battery;

Obtaining a current charging voltage of the battery;

Obtaining a charging current corresponding to the current charging voltage from the charging parameter table;

Adjusting the output current of the current output device according to the obtained charging current, so that the actual charging power of the battery reaches the maximum threshold.
The electronic device according to claim 12, wherein said processor executes a computer program stored in said memory to perform "adjusting a charging current of said battery such that an actual charging power of said battery reaches said maximum threshold When you follow the steps, you also perform the following steps:

Continue to acquire a new current charging voltage of the battery;

Retrieving a charging current corresponding to the new current charging voltage from the charging parameter table;

The output current of the current output device is adjusted according to the charging current that is continuously obtained, so that the current charging power of the battery reaches the maximum threshold.
The electronic device according to claim 12, wherein each set of charging parameters corresponds to a charging time, and a preset time threshold is set between two adjacent charging moments of the plurality of charging times corresponding to the plurality of charging parameters. When the processor runs the computer program stored in the memory to perform the step of “adjusting the charging current of the battery so that the actual charging power of the battery reaches the maximum threshold”, the following steps are specifically performed:

And continuing to acquire, from the charging parameter table, a charging current corresponding to a next charging moment after the preset time threshold;

Re-adjusting the output current of the current output device according to the continuously obtained charging current, so that the current charging power of the battery reaches the maximum threshold.
The electronic device according to any one of claims 12-14, wherein when the processor runs the step of executing a "preset charging parameter table" by the computer program stored in the memory, the following steps are specifically performed:

Acquiring a plurality of charging voltages of the battery detected by the detecting device in a constant current charging process;

Calculating a charging current corresponding to each charging voltage detected in advance according to a maximum threshold value of the charging power of the battery, each charging voltage detected in advance, and a correspondence relationship between the charging current and the charging power and the charging voltage, The product of each pre-detected charging voltage and the charging current corresponding to the pre-detected charging voltage is equal to a maximum threshold of the charging power of the battery;

A charging parameter table is set, and a plurality of sets of charging parameters are recorded in the charging parameter table, wherein each of the charging parameters includes a pre-detected charging voltage and a charging current corresponding to the pre-detected charging voltage.
The electronic device of claim 9, wherein said electronic device further comprises voltage output means, said processor further for operating a computer program stored in said memory to perform the steps of:

And if the charging voltage of the battery reaches the safety cutoff voltage, adjusting an output voltage of the voltage output device to perform constant voltage charging on the battery with the safety cutoff voltage.
A computer readable storage medium having stored thereon computer instructions, wherein the computer instructions are executed by a processor to perform the steps of the battery charging method of any of claims 1-8.