CN112311032A - Charging method, charging device, electronic equipment and storage medium - Google Patents

Charging method, charging device, electronic equipment and storage medium Download PDF

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Publication number
CN112311032A
CN112311032A CN201910700900.XA CN201910700900A CN112311032A CN 112311032 A CN112311032 A CN 112311032A CN 201910700900 A CN201910700900 A CN 201910700900A CN 112311032 A CN112311032 A CN 112311032A
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China
Prior art keywords
charged
battery
charging
current
equipment
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Granted
Application number
CN201910700900.XA
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Chinese (zh)
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CN112311032B (en
Inventor
谢红斌
张俊
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN202310240588.7A priority Critical patent/CN116191621A/en
Priority to CN201910700900.XA priority patent/CN112311032B/en
Priority to PCT/CN2020/105747 priority patent/WO2021018233A1/en
Publication of CN112311032A publication Critical patent/CN112311032A/en
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Publication of CN112311032B publication Critical patent/CN112311032B/en
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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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • 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
    • 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
    • H01M10/443—Methods for charging or discharging in response to temperature
    • 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
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309—Overheat or overtemperature protection
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • 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

Abstract

The application relates to a charging method, a charging device, an electronic device and a storage medium. The method comprises the following steps: when the charging signal is detected, controlling the equipment to be charged with a first charging current; in the process that the equipment to be charged is charged with the first charging current, if the battery state of the equipment to be charged is detected to meet a preset first switching condition, controlling the equipment to be charged with a rated charging current; the first charging current is smaller than the rated charging current, and the first switching condition is a switching condition set according to the temperature rise and/or the voltage of the battery of the device to be charged. By the embodiment of the invention, the battery can be prevented from being rapidly heated in the initial charging stage, the large-current charging for a long time can be maintained, and the charging speed is improved.

Description

Charging method, charging device, electronic equipment and storage medium
Technical Field
The present disclosure relates to the field of charging technologies, and in particular, to a charging method, a charging apparatus, an electronic device, and a storage medium.
Background
With the rapid development of science and technology, mobile terminals are deeply inserted into the lives and works of people and become more and more popular. The fast charging mode becomes the main research direction of the charging mode of the mobile terminal, because the fast charging can shorten the charging time and bring convenience to the use of people.
In the related art, the fast charging mode generally charges the mobile terminal with a maximum charging current, and then continuously decreases the charging current. However, the battery temperature rises rapidly during large current charging, and the charging time of the maximum charging current is usually limited to a short time range in order to avoid damage to the mobile terminal due to an excessively high battery temperature.
However, since the maximum charging current is maintained for a short time, it is difficult to increase the charging speed.
Disclosure of Invention
In view of the above, it is desirable to provide a charging method, a charging apparatus, an electronic device, and a storage medium capable of increasing a maximum current holding time and increasing a charging speed.
In a first aspect, a charging method is provided, which includes:
when the charging signal is detected, controlling the equipment to be charged with a first charging current;
in the process that the equipment to be charged is charged with the first charging current, if the battery state of the equipment to be charged is detected to meet a preset first switching condition, controlling the equipment to be charged with the rated charging current;
the first charging current is smaller than the rated charging current, and the first switching condition is a switching condition set according to the temperature rise and/or the voltage of the battery of the device to be charged.
In one embodiment, the method further comprises:
in the process that the equipment to be charged is charged at the rated charging current, if the battery state of the equipment to be charged is detected to meet a preset second switching condition, controlling the equipment to be charged at a second charging current;
and the second charging current is less than the rated charging current, and the second switching condition is a switching condition set according to the temperature rise and/or the temperature of the battery.
In one embodiment, the battery status includes: at least one of a present temperature, a present temperature rise, and a present voltage of the battery.
In one embodiment, detecting that the battery state of the device to be charged meets a preset first switching condition includes:
acquiring the initial temperature and the current temperature of the battery;
determining the temperature rise of the battery according to the initial temperature and the current temperature;
and if the temperature rise of the battery reaches the first preset temperature rise, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, detecting that the battery state of the device to be charged meets a preset first switching condition includes:
acquiring the current voltage of the battery;
judging whether the current voltage reaches a preset voltage or not;
and if the current voltage reaches the preset voltage, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, detecting that the battery state of the device to be charged satisfies a preset second switching condition includes:
acquiring the initial temperature and the current temperature of the battery;
determining the temperature rise of the battery according to the initial temperature and the current temperature;
and if the temperature rise of the battery reaches the second preset temperature rise, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, detecting that the battery state of the device to be charged satisfies a preset second switching condition includes:
acquiring the current temperature of the battery;
judging whether the current temperature of the battery reaches a preset temperature or not;
and if the current temperature of the battery reaches the preset temperature, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, the method further comprises:
in the process that the equipment to be charged is charged with the second charging current, if the battery state of the equipment to be charged is detected to meet a preset third switching condition, controlling the equipment to be charged with the third charging current;
wherein the third charging current is less than the second charging current; the third switching condition is a switching condition set according to the temperature rise and/or temperature of the battery.
In one embodiment, the method further comprises:
if the current voltage of the battery reaches the charging cut-off voltage, controlling the equipment to be charged to charge at the constant voltage of the charging cut-off voltage;
and in the process that the equipment to be charged is charged at the charging cut-off voltage, if the charging current is detected to reach the charging cut-off current, controlling the equipment to be charged to stop charging.
In a second aspect, there is provided a charging device, the device comprising:
the first control module is used for controlling the equipment to be charged with first charging current when the charging signal is detected;
the second control module is used for controlling the equipment to be charged at a rated charging current if the battery state of the equipment to be charged is detected to meet a preset first switching condition in the process that the equipment to be charged is charged at the first charging current;
the first charging current is smaller than the rated charging current, and the first switching condition is a switching condition set according to the temperature rise and/or the voltage of the battery of the device to be charged.
In one embodiment, the apparatus further comprises:
the third control module is used for controlling the equipment to be charged with a second charging current if the battery state of the equipment to be charged is detected to meet a preset second switching condition in the process that the equipment to be charged is charged with the rated charging current;
and the second charging current is less than the rated charging current, and the second switching condition is a switching condition set according to the temperature rise and/or the temperature of the battery.
In one embodiment, the battery status includes: at least one of a present temperature, a present temperature rise, and a present voltage of the battery.
In one embodiment, the second control module is specifically configured to obtain an initial temperature and a current temperature of the battery; determining the temperature rise of the battery according to the initial temperature and the current temperature; and if the temperature rise of the battery reaches the first preset temperature rise, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, the second control module is specifically configured to obtain a current voltage of the battery; judging whether the current voltage reaches a preset voltage or not; and if the current voltage reaches the preset voltage, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, the third control module is specifically configured to obtain an initial temperature and a current temperature of the battery; determining the temperature rise of the battery according to the initial temperature and the current temperature; and if the temperature rise of the battery reaches the second preset temperature rise, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, the third control module is specifically configured to obtain a current temperature of the battery; judging whether the current temperature of the battery reaches a preset temperature or not; and if the current temperature of the battery reaches the preset temperature, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, the apparatus further comprises:
the fourth control module is used for controlling the equipment to be charged with a third charging current if the battery state of the equipment to be charged is detected to meet a preset third switching condition in the process that the equipment to be charged is charged with the second charging current;
wherein the third charging current is less than the second charging current; the third switching condition is a switching condition set according to the temperature rise and/or temperature of the battery.
In one embodiment, the apparatus further comprises:
the fifth control module is used for controlling the equipment to be charged with constant voltage of the charging cut-off voltage if the current voltage of the battery reaches the charging cut-off voltage;
and the sixth control module is used for controlling the equipment to be charged to stop charging if the charging current is detected to reach the charging cut-off current in the charging process of the equipment to be charged at the charging cut-off voltage.
In a third aspect, an electronic device is provided, comprising a memory storing a computer program and a processor implementing the steps of the method as described above when the processor executes the computer program.
In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method as described above.
According to the charging method, the charging device, the electronic equipment and the storage medium, when the charging signal is detected, the equipment to be charged is controlled to be charged with the first charging current; in the process that the equipment to be charged is charged with the first charging current, if the battery state of the equipment to be charged is detected to meet a preset first switching condition, the equipment to be charged is controlled to be charged with the rated charging current. According to the embodiment of the invention, when charging is started, the battery is charged at the first charging current lower than the rated charging current, and the internal resistance value of the battery is larger in the initial charging stage, so that the battery can be prevented from being rapidly heated by charging at a low current; then, the battery is charged by the rated charging current, namely the maximum charging current, at the moment, the internal resistance value of the battery is reduced compared with the initial charging stage, and the battery is not heated rapidly even if the battery is charged by large current, so that the large current charging for a long time can be maintained, and the charging speed is improved.
Drawings
FIG. 1 is a diagram of an exemplary charging method;
FIG. 2 is a flow diagram illustrating a charging method according to one embodiment;
FIG. 3 is a graph showing changes in internal resistance of a battery during charging in one embodiment;
FIG. 4 is one of the charge current switching diagrams in one embodiment;
FIG. 5 is a flow chart illustrating a charging method according to another embodiment;
FIG. 6 is a second diagram illustrating charge current switching in one embodiment;
FIG. 7 is a block diagram of a charging device according to an embodiment;
FIG. 8 is a second block diagram of the charging device according to one embodiment;
fig. 9 is an internal structural diagram of a mobile terminal in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The charging method provided by the application can be applied to the application environment shown in fig. 1. The application environment includes the device to be charged 10 and the power supply device 20. The device to be charged 10 may be, but is not limited to, various notebook computers, smart phones, tablet computers, and portable wearable devices. The power supply device 20 may be various power adapters. The charging method may be applied to the device to be charged 10, and may also be applied to a power adapter, which is not limited in detail in the embodiment of the present invention, and may be set according to actual situations.
In one embodiment, as shown in fig. 2, a charging method is provided, which is exemplified by the method applied to the device to be charged in fig. 1, and includes the following steps:
step 101, when a charging signal is detected, controlling a device to be charged with a first charging current.
In this embodiment, a current value of the first charging current is preset in the device to be charged in advance, and the first charging current is smaller than a rated charging current, which may be a current that maximizes the charging power. When the device to be charged detects the charging signal, the device to be charged sends a control signal to the power supply device, and the power supply device is controlled to charge the device to be charged by the first charging current. For example, the rated charging current is 9A, the first charging current is preset to be 6A, and when the charging signal is detected, the power adapter is controlled to charge the smart phone with the charging current of 6A. When the device to be charged detects the charging signal, it indicates that the power supply device starts to charge the device to be charged, for example, the device to be charged enters an initial charging stage from the connection between the device to be charged and the power adapter.
Referring to fig. 3, a change in the internal resistance value of the battery during charging is shown. As can be seen from the graph, the internal resistance value of the battery is high in the initial stage of charging, is also high in the full charge stage, and is low in the intermediate stage of charging. This is because the difference between the amounts of lithium ions at the positive and negative electrodes of the battery is the largest in the initial charging stage and the full charging stage, and the internal polarization is the largest. In the prior art, the maximum charging current is usually used to charge the device to be charged, and the internal resistance of the battery is relatively high in the initial charging stage, so that the temperature of the rechargeable battery can be rapidly increased by using a large current, and the holding time of the large current is relatively short. In the embodiment of the invention, when the charging is started, the battery is charged by the first charging current lower than the rated charging current, and the internal resistance value of the battery is larger in the initial charging stage, so that the battery can be prevented from being rapidly heated by charging with low current.
102, in the process that the equipment to be charged is charged with a first charging current, if the battery state of the equipment to be charged is detected to meet a preset first switching condition, controlling the equipment to be charged with a rated charging current; the first charging current is smaller than the rated charging current, and the first switching condition is a switching condition set according to the temperature rise and/or the voltage of the battery of the device to be charged.
In this embodiment, the charging speed cannot be increased if the charging is performed with a small current all the time, so that a first switching condition may be preset, and in the first charging current charging process, the device to be charged detects whether the battery state satisfies the first switching condition, and if the battery state does not satisfy the first switching condition, the charging is continued with the first charging current; and if the first switching condition is met, sending a control signal to the power supply equipment, and controlling the power supply equipment to charge the equipment to be charged with the rated charging current. Wherein the first switching condition is a switching condition set according to a temperature rise and/or a voltage of the battery. For example, the first switching condition includes that the temperature rise of the battery reaches 3 ℃ and/or the voltage reaches 1.0V, and then when the temperature rise of the battery reaches 3 ℃ and/or the voltage reaches 1.0V, the power supply device is controlled to charge the device to be charged with the rated charging current.
For example, when the rated charging current is 9A, the power adapter is first controlled to charge the smart phone with the charging current of 6A, and in the charging process, if the temperature rise of the battery reaches 3 ℃ and/or the voltage of the battery reaches 1.0V, the power adapter is controlled to charge the smart phone with 9A, as shown in a charging current switching diagram shown in fig. 4, where a solid line is the temperature of the battery and a dotted line is the charging current.
Because the internal resistance value of the battery is lower in the middle stage of charging, the battery is charged by the rated charging current, namely the maximum charging current, the temperature of the battery is not rapidly increased, and therefore large-current charging for a long time can be maintained, and the charging speed is further improved.
Optionally, the device to be charged is connected to the power supply device through a USB (Universal Serial Bus) interface, the device to be charged sends a control signal to the power supply device through a data signal pin of the USB interface, and the power supply device charges the device to be charged through a power supply pin.
In the charging method, when a charging signal is detected, the equipment to be charged is controlled to be charged by a first charging current; in the process that the equipment to be charged is charged with the first charging current, if the battery state of the equipment to be charged is detected to meet a preset first switching condition, the equipment to be charged is controlled to be charged with the rated charging current. According to the embodiment of the invention, when charging is started, the battery is charged at the first charging current lower than the rated charging current, and the internal resistance value of the battery is larger in the initial charging stage, so that the battery can be prevented from being rapidly heated by charging at a low current; then, the battery is charged by the rated charging current, namely the maximum charging current, at the moment, the internal resistance value of the battery is reduced compared with the initial charging stage, and the battery is not heated rapidly even if the battery is charged by large current, so that the large current charging for a long time can be maintained, and the charging speed is improved.
In another embodiment, the present embodiment relates to an alternative procedure of detecting that the battery status of the device to be charged satisfies a preset first switching condition. On the basis of the embodiment shown in fig. 2 described above, the battery status includes: at least one of the current temperature, the current temperature rise and the current voltage of the battery is obtained, and a specific implementation process of detecting whether the battery state of the device to be charged meets a preset first switching condition is described in detail in a first mode and a second mode respectively.
The first method is as follows: acquiring the initial temperature and the current temperature of the battery; determining the temperature rise of the battery according to the initial temperature and the current temperature; and if the temperature rise of the battery reaches the first preset temperature rise, detecting that the battery state of the equipment to be charged meets a first switching condition.
In this embodiment, when the device to be charged detects the charging signal, the initial temperature of the battery may be detected by the sensor and stored. In the process that the power supply equipment charges the equipment to be charged by the first charging current, the equipment to be charged detects the current temperature of the battery through a sensor; and determining the temperature rise of the battery according to the initial temperature and the current temperature of the battery, and judging whether the temperature rise of the battery reaches a first preset temperature rise. And if the temperature rise of the battery reaches a first preset temperature rise, determining that the detected battery state meets a first switching condition, and then sending a control signal to the power supply equipment to enable the power supply equipment to charge the equipment to be charged with rated charging current. And if the temperature rise of the battery does not reach the first preset temperature rise, controlling the power supply equipment to continuously charge the equipment to be charged by the first charging current.
For example, when the first preset temperature rises to 3 ℃, and the smartphone detects a charging signal, the initial temperature of the battery is detected to be 23 ℃ through the sensor, and the power adapter is controlled to charge the smartphone with a charging current of 6A. While charging with a charging current of 6A, the smartphone detects the current temperature of the battery as 24 ℃. And then, determining that the temperature rise of the battery is 1 ℃ according to the initial temperature and the current temperature of the battery, continuing to charge the battery by using the charging current of 6A when the first preset temperature rise is not reached, and continuing to detect the current temperature of the battery. When the current temperature of the battery is detected to be 26 ℃, the temperature rise of the battery is determined to be 3 ℃ according to the initial temperature and the current temperature of the battery, and the first preset temperature rise is reached, the battery state is determined to meet the first switching condition, and the power adapter is controlled to charge the smart phone by using the rated charging current of 9A.
The second method comprises the following steps: acquiring the current voltage of the battery; judging whether the current voltage reaches a preset voltage or not; and if the current voltage reaches the preset voltage, detecting that the battery state of the equipment to be charged meets a first switching condition.
In the embodiment, when the power supply equipment charges the equipment to be charged by using the first charging current, the current voltage of the battery is acquired, and if the current voltage of the battery reaches the preset voltage, it is determined that the battery state meets the first switching condition; if the present voltage of the battery does not reach the preset voltage, the charging with the first charging current is continued. For example, the preset voltage is 1.0V, and the power adapter charges the smartphone with a charging current of 6A. The smart phone obtains that the current voltage of the battery is 0.5V, and controls the power adapter to continue charging with the charging current of 6A. When the current voltage of the battery obtained by the smart phone is 1.0V and reaches the preset voltage, the battery state is determined to meet the first switching condition, and the power adapter is controlled to charge the smart phone at the rated charging current of 9A.
Optionally, whether the battery state of the device to be charged meets the first switching condition may also be detected according to the current electric quantity of the battery. For example, the current electric quantity of the battery is obtained, and whether the current electric quantity reaches a preset electric quantity is judged; and if the current electric quantity reaches the preset electric quantity, detecting that the battery state of the equipment to be charged meets a first switching condition. The current voltage of the battery can be converted into the current electric quantity of the battery according to the conversion relation between the electric quantity and the voltage; the current electric quantity of the battery can also be calculated according to the relation between the charging current and the electric quantity. The embodiment of the present invention is not limited in detail, and may be set according to actual situations.
Optionally, the current temperature, the current voltage, and the current of the battery may be detected in real time, or may be detected according to a preset detection period. The detection period is not limited in detail in the embodiment of the invention, and can be set according to actual conditions.
In the step of detecting that the battery state of the device to be charged meets the preset first switching condition, when the temperature rise of the battery reaches a first preset temperature rise and/or the current voltage reaches a preset voltage, it is determined that the battery state of the device to be charged meets the first switching condition, and the device to be charged is controlled to be charged at a rated charging current. According to the embodiment of the invention, the charging current can be switched according to the battery state, so that the temperature of the battery is not too high, the safe charging of the battery is ensured, the charging speed is ensured, and the charging efficiency is improved.
In another embodiment, on the basis of prolonging the charging time with large current, the temperature of the battery needs to be controlled to avoid the loss of the battery caused by overhigh temperature of the battery. As shown in fig. 5, the present embodiment relates to an alternative process of charging. On the basis of the embodiment shown in fig. 2, after the step 102, the following steps may be further included:
103, in the process that the equipment to be charged is charged at the rated charging current, if the battery state of the equipment to be charged is detected to meet a preset second switching condition, controlling the equipment to be charged at a second charging current; wherein the second charging current is less than the rated charging current; the second switching condition is a switching condition set according to a temperature rise and/or a temperature of the battery.
In the embodiment, in the charging process of the rated charging current, in order to avoid damage to the device to be charged due to overhigh battery temperature, a second switching condition is preset, whether the battery state of the device to be charged meets the second switching condition is detected, and if the battery state meets the second switching condition is detected, a control signal is sent to the power supply device to control the power supply device to charge the device to be charged by using the second charging current; wherein the second charging current is less than the rated charging current; the second switching condition is a switching condition set according to a temperature rise and/or a temperature of the battery. That is, if the temperature rise or temperature of the battery of the device to be charged reaches the switching condition, the charging current is reduced, so that the temperature of the battery is reduced or no longer increased, thereby avoiding causing battery loss and prolonging the service life of the battery.
Optionally, detecting that the battery state of the device to be charged meets a preset second switching condition may specifically include the following third and/or fourth modes:
the third method comprises the following steps: acquiring the initial temperature and the current temperature of the battery; determining the temperature rise of the battery according to the initial temperature and the current temperature; and if the temperature rise of the battery reaches the second preset temperature rise, detecting that the battery state of the equipment to be charged meets a second switching condition.
For example, the second preset temperature rise is 8 ℃, the smartphone detects that the initial temperature of the battery is 23 ℃ through the sensor, the current temperature is 28 ℃, the temperature rise of the battery is determined to be 5 ℃, and if the second preset temperature rise is not reached, the rated charging current is continued to be 9A. And if the current temperature of the battery is detected to be 31 ℃, the temperature rise of the battery is determined to be 8 ℃, and the second preset temperature rise is reached, controlling the power adapter to charge the smart phone by using the charging current of 6A.
The method is as follows: acquiring the current temperature of the battery; judging whether the current temperature of the battery reaches a preset temperature or not; and if the current temperature of the battery reaches the preset temperature, detecting that the battery state of the equipment to be charged meets a second switching condition.
For example, if the preset temperature is 31 ℃, the smartphone detects that the initial temperature of the battery is 23 ℃ through the sensor, the current temperature is 28 ℃, and the smartphone is not charged at the preset temperature, the smartphone is continuously charged at the rated charging current 9A; and if the current temperature of the battery is detected to be 31 ℃ and reaches the preset temperature, controlling the power adapter to charge the smart phone by using the charging current of 6A.
The second charging current may be the same as the first charging current, or may be different from the first charging current, which is not limited in detail in the embodiment of the present invention, and may be set according to actual situations.
Further, if the temperature of the battery continues to rise or the battery needs to be rapidly cooled in the process that the power supply device charges the device to be charged with the second charging current, the method may further include the following steps:
104, in the process that the equipment to be charged is charged with the second charging current, if the battery state of the equipment to be charged is detected to meet a preset third switching condition, controlling the equipment to be charged with the third charging current; wherein the third charging current is less than the second charging current; the third switching condition is a switching condition set according to the temperature rise and/or temperature of the battery.
In this embodiment, if the temperature of the battery continues to rise or the battery needs to be rapidly cooled in the process that the power supply device charges the device to be charged with the second charging current, a third switching condition may be preset, and it is detected whether the battery state meets the third switching condition, and if the third switching condition is met, a control signal is sent to the power supply device to control the power supply device to charge the device to be charged with the third charging current.
Wherein the third switching condition is a switching condition set according to a temperature rise and/or a temperature of the battery. Specifically, detecting whether the temperature rise of the battery reaches a third preset temperature rise or whether the temperature of the battery reaches a preset temperature; and if the temperature rise of the battery reaches a third preset temperature and/or the temperature of the battery reaches the preset temperature, controlling the power supply equipment to charge the equipment to be charged by using a third charging current, as shown in fig. 4. And the third charging current is smaller than the second charging current, namely, the charging current is further reduced, so that the temperature of the battery is reduced.
For example, the preset temperature is 31 ℃, when the current temperature of the battery is detected to be 31 ℃, the preset temperature is reached, and the power adapter is controlled to charge the smart phone by using the charging current of 4A. For another example, the third preset temperature rise is 8 ℃, the initial temperature of the battery is 23 ℃, the current temperature is 31 ℃, the temperature rise of the battery is 8 ℃, and the power adapter is controlled to charge the smart phone by using the charging current of 4A when the third preset temperature rise is reached. The preset temperature in the third switching condition may be the same as or different from the preset temperature in the second switching condition, which is not limited in detail in the embodiment of the present invention and may be set according to an actual situation. Similarly, the third preset temperature rise may be the same as or different from the second preset temperature rise, and this is not limited in detail in the embodiment of the present invention.
Step 105, if the current voltage of the battery reaches the charging cut-off voltage, controlling the equipment to be charged to charge at the constant charging cut-off voltage; and in the process that the equipment to be charged is charged at the charging cut-off voltage, if the charging current is detected to reach the charging cut-off current, controlling the equipment to be charged to stop charging.
In this embodiment, the charging current is a current charging current provided by the power supply device to the device to be charged. And when the current voltage of the battery reaches the charging cut-off voltage, sending a control signal to the power supply equipment, and controlling the power supply equipment to charge the equipment to be charged at a constant voltage by using the charging cut-off voltage. For example, the charge cut-off voltage is 4.4V, and when the current voltage of the battery reaches 4.4V, the power adapter is controlled to charge the smartphone at a constant voltage of 4.4V.
When the power supply equipment charges the equipment to be charged at constant voltage by using the charging cut-off voltage, the charging current provided by the power supply equipment for the equipment to be charged is gradually reduced, and when the charging current is detected to reach the charging cut-off current, a control signal is sent to the power supply equipment to control the power supply equipment to stop supplying power. For example, the charging cutoff current is 0.6A, the power adapter performs constant voltage charging on the smartphone at 4.4V, and when the charging current of the power adapter gradually decreases to 0.6A, the power adapter is controlled to stop charging, as shown in the charging current switching diagram shown in fig. 6, where the solid line is the temperature of the battery and the dotted line is the charging current. The constant voltage charging of the equipment to be charged by using the charging cut-off voltage can ensure that the electric quantity of the battery is more full.
In the charging method, in the process that the equipment to be charged is charged at the rated charging current, if the battery state of the equipment to be charged is detected to meet a preset second switching condition, the equipment to be charged is controlled to be charged at a second charging current; in the process that the equipment to be charged is charged with the second charging current, if the battery state of the equipment to be charged is detected to meet a preset third switching condition, controlling the equipment to be charged with the third charging current; if the current voltage of the battery reaches the charging cut-off voltage, controlling the equipment to be charged to charge at the constant voltage of the charging cut-off voltage; and in the process that the equipment to be charged is charged at the charging cut-off voltage, if the charging current is detected to reach the charging cut-off current, controlling the equipment to be charged to stop charging. According to the embodiment of the invention, when the rated charging current is used for charging, the charging is switched to the second charging current or the third charging current according to the battery state, so that the damage to the equipment to be charged due to overhigh battery temperature is avoided, and the service life of the equipment to be charged is prolonged. And after the current voltage of the power supply equipment reaches the charging cut-off voltage, the power supply equipment is controlled to charge the equipment to be charged at constant voltage by using the charging cut-off voltage, so that the electric quantity of the battery is more full.
It should be understood that although the various steps in the flow charts of fig. 2-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-5 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 7, there is provided a charging device including:
the first control module 201 is configured to control the device to be charged with a first charging current when the charging signal is detected;
the second control module 202 is configured to, in a process that the device to be charged is charged with the first charging current, control the device to be charged with the rated charging current if it is detected that a battery state of the device to be charged meets a preset first switching condition;
the first charging current is smaller than the rated charging current, and the first switching condition is a switching condition set according to the temperature rise and/or the voltage of the battery of the device to be charged.
In one embodiment, the apparatus further comprises a third control module 203, see fig. 8:
the third control module 203 is configured to, in a process that the device to be charged is charged with the rated charging current, control the device to be charged with the second charging current if it is detected that a battery state of the device to be charged meets a preset second switching condition;
and the second charging current is less than the rated charging current, and the second switching condition is a switching condition set according to the temperature rise and/or the temperature of the battery.
In one embodiment, the battery status includes: at least one of a present temperature, a present temperature rise, and a present voltage of the battery.
In one embodiment, the second control module 202 is specifically configured to obtain an initial temperature and a current temperature of the battery; determining the temperature rise of the battery according to the initial temperature and the current temperature; and if the temperature rise of the battery reaches the first preset temperature rise, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, the second control module 202 is specifically configured to obtain a current voltage of the battery; judging whether the current voltage reaches a preset voltage or not; and if the current voltage reaches the preset voltage, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, the third control module 203 is specifically configured to obtain an initial temperature and a current temperature of the battery; determining the temperature rise of the battery according to the initial temperature and the current temperature; and if the temperature rise of the battery reaches the second preset temperature rise, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, the third control module 203 is specifically configured to obtain a current temperature of the battery; judging whether the current temperature of the battery reaches a preset temperature or not; and if the current temperature of the battery reaches the preset temperature, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, the apparatus further comprises a fourth control module 204, see FIG. 8:
the fourth control module 204 is configured to, in a process that the to-be-charged device is charged with the second charging current, control the to-be-charged device to be charged with the third charging current if it is detected that a battery state of the to-be-charged device meets a preset third switching condition;
wherein the third charging current is less than the second charging current; the third switching condition is a switching condition set according to the temperature rise and/or temperature of the battery.
In one embodiment, the apparatus further comprises a fifth control module 205 and a sixth control module 206, see fig. 8:
a fifth control module 205, configured to control the device to be charged to charge at the constant charging cutoff voltage if the current voltage of the battery reaches the charging cutoff voltage;
the sixth control module 206 is configured to, during the charging at the charging cut-off voltage, control the device to be charged to stop charging if it is detected that the charging current reaches the charging cut-off current.
For specific limitations of the charging device, reference may be made to the above limitations of the charging method, which are not described herein again. The modules in the charging apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the electronic device, or can be stored in a memory in the electronic device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a mobile terminal is provided, an internal structure of which may be as shown in fig. 9. The mobile terminal comprises a processor, a memory, a network interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the mobile terminal is configured to provide computing and control capabilities. The memory of the mobile terminal comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the mobile terminal is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to implement a charging method. The display screen of the mobile terminal can be a liquid crystal display screen or an electronic ink display screen, and the input device of the mobile terminal can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on a shell of the mobile terminal, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the configuration shown in fig. 9 is a block diagram of only a portion of the configuration relevant to the present application, and does not constitute a limitation of the mobile terminal to which the present application is applied, and that a particular mobile terminal may include more or less components than those shown in the figures, or combine certain components, or have a different arrangement of components.
In one embodiment, an electronic device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
when the charging signal is detected, controlling the equipment to be charged with a first charging current;
in the process that the equipment to be charged is charged with the first charging current, if the battery state of the equipment to be charged is detected to meet a preset first switching condition, controlling the equipment to be charged with the rated charging current;
the first charging current is smaller than the rated charging current, and the first switching condition is a switching condition set according to the temperature rise and/or the voltage of the battery of the device to be charged.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
in the process that the equipment to be charged is charged at the rated charging current, if the battery state of the equipment to be charged is detected to meet a preset second switching condition, controlling the equipment to be charged to charge the equipment to be charged at a second charging current;
and the second charging current is less than the rated charging current, and the second switching condition is a switching condition set according to the temperature rise and/or the temperature of the battery.
In one embodiment, the battery status includes: at least one of a present temperature, a present temperature rise, and a present voltage of the battery.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring the initial temperature and the current temperature of the battery;
determining the temperature rise of the battery according to the initial temperature and the current temperature;
and if the temperature rise of the battery reaches the first preset temperature rise, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring the current voltage of the battery;
judging whether the current voltage reaches a preset voltage or not;
and if the current voltage reaches the preset voltage, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring the initial temperature and the current temperature of the battery;
determining the temperature rise of the battery according to the initial temperature and the current temperature;
and if the temperature rise of the battery reaches the second preset temperature rise, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring the current temperature of the battery;
judging whether the current temperature of the battery reaches a preset temperature or not;
and if the current temperature of the battery reaches the preset temperature, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
in the process that the equipment to be charged is charged with the second charging current, if the battery state of the equipment to be charged is detected to meet a preset third switching condition, controlling the equipment to be charged with the third charging current;
wherein the third charging current is less than the second charging current; the third switching condition is a switching condition set according to the temperature rise and/or temperature of the battery.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
if the current voltage of the battery reaches the charging cut-off voltage, controlling the equipment to be charged to charge at the constant voltage of the charging cut-off voltage;
and in the process that the equipment to be charged is charged at the charging cut-off voltage, if the charging current is detected to reach the charging cut-off current, controlling the equipment to be charged to stop charging.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
when the charging signal is detected, controlling the equipment to be charged with a first charging current;
in the process that the equipment to be charged is charged with the first charging current, if the battery state of the equipment to be charged is detected to meet a preset first switching condition, controlling the equipment to be charged with the rated charging current;
the first charging current is smaller than the rated charging current, and the first switching condition is a switching condition set according to the temperature rise and/or the voltage of the battery of the device to be charged.
In one embodiment, the computer program when executed by the processor further performs the steps of:
in the process that the equipment to be charged is charged at the rated charging current, if the battery state of the equipment to be charged is detected to meet a preset second switching condition, controlling the equipment to be charged at a second charging current;
and the second charging current is less than the rated charging current, and the second switching condition is a switching condition set according to the temperature rise and/or the temperature of the battery.
In one embodiment, the battery status includes: at least one of a present temperature, a present temperature rise, and a present voltage of the battery.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring the initial temperature and the current temperature of the battery;
determining the temperature rise of the battery according to the initial temperature and the current temperature;
and if the temperature rise of the battery reaches the first preset temperature rise, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring the current voltage of the battery;
judging whether the current voltage reaches a preset voltage or not;
and if the current voltage reaches the preset voltage, detecting that the battery state of the equipment to be charged meets a first switching condition.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring the initial temperature and the current temperature of the battery;
determining the temperature rise of the battery according to the initial temperature and the current temperature;
and if the temperature rise of the battery reaches the second preset temperature rise, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring the current temperature of the battery;
judging whether the current temperature of the battery reaches a preset temperature or not;
and if the current temperature of the battery reaches the preset temperature, detecting that the battery state of the equipment to be charged meets a second switching condition.
In one embodiment, the computer program when executed by the processor further performs the steps of:
in the process that the equipment to be charged is charged with the second charging current, if the battery state of the equipment to be charged is detected to meet a preset third switching condition, controlling the equipment to be charged with the third charging current;
wherein the third charging current is less than the second charging current; the third switching condition is a switching condition set according to the temperature rise and/or temperature of the battery.
In one embodiment, the computer program when executed by the processor further performs the steps of:
if the current voltage of the battery reaches the charging cut-off voltage, controlling the equipment to be charged to charge at the constant voltage of the charging cut-off voltage;
and in the process that the equipment to be charged is charged at the charging cut-off voltage, if the charging current is detected to reach the charging cut-off current, controlling the equipment to be charged to stop charging.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (12)

1. A method of charging, the method comprising:
when the charging signal is detected, controlling the equipment to be charged with a first charging current;
in the process that the equipment to be charged is charged with the first charging current, if the battery state of the equipment to be charged is detected to meet a preset first switching condition, controlling the equipment to be charged with a rated charging current;
the first charging current is smaller than the rated charging current, and the first switching condition is a switching condition set according to the temperature rise and/or the voltage of the battery of the device to be charged.
2. The method of claim 1, further comprising:
in the process that the equipment to be charged is charged at the rated charging current, if the battery state of the equipment to be charged is detected to meet a preset second switching condition, controlling the equipment to be charged at a second charging current;
the second charging current is smaller than the rated charging current, and the second switching condition is a switching condition set according to the temperature rise and/or the temperature of the battery.
3. The method of claim 2, wherein the battery status comprises: at least one of a present temperature, a present temperature rise, and a present voltage of the battery.
4. The method according to claim 3, wherein the detecting that the battery state of the device to be charged satisfies a preset first switching condition comprises:
acquiring an initial temperature and a current temperature of the battery;
determining the temperature rise of the battery according to the initial temperature and the current temperature;
and if the temperature rise of the battery reaches a first preset temperature rise, detecting that the battery state of the equipment to be charged meets the first switching condition.
5. The method according to claim 3, wherein the detecting that the battery state of the device to be charged satisfies a preset first switching condition comprises:
acquiring the current voltage of the battery;
judging whether the current voltage reaches a preset voltage or not;
and if the current voltage reaches the preset voltage, detecting that the battery state of the equipment to be charged meets the first switching condition.
6. The method according to claim 3, wherein the detecting that the battery state of the device to be charged satisfies a preset second switching condition comprises:
acquiring an initial temperature and a current temperature of the battery;
determining the temperature rise of the battery according to the initial temperature and the current temperature;
and if the temperature rise of the battery reaches a second preset temperature rise, detecting that the battery state of the equipment to be charged meets the second switching condition.
7. The method according to claim 3, wherein the detecting that the battery state of the device to be charged satisfies a preset second switching condition comprises:
acquiring the current temperature of the battery;
judging whether the current temperature of the battery reaches a preset temperature or not;
and if the current temperature of the battery reaches the preset temperature, detecting that the battery state of the equipment to be charged meets the second switching condition.
8. The method of claim 2, further comprising:
in the process that the equipment to be charged is charged with the second charging current, if the battery state of the equipment to be charged is detected to meet a preset third switching condition, controlling the equipment to be charged with a third charging current;
wherein the third charging current is less than the second charging current; the third switching condition is a switching condition set according to a temperature rise and/or a temperature of the battery.
9. The method of claim 8, further comprising:
if the current voltage of the battery reaches a charging cut-off voltage, controlling the equipment to be charged with the charging cut-off voltage at a constant voltage;
and in the process that the equipment to be charged is charged at the charging cut-off voltage, if the charging current is detected to reach the charging cut-off current, controlling the equipment to be charged to stop charging.
10. A charging device, the device comprising:
the first control module is used for controlling the equipment to be charged with first charging current when the charging signal is detected;
the second control module is used for controlling the equipment to be charged at a rated charging current if the battery state of the equipment to be charged is detected to meet a preset first switching condition in the process that the equipment to be charged is charged at the first charging current;
the first charging current is smaller than the rated charging current, and the first switching condition is a switching condition set according to the temperature rise and/or the voltage of the battery of the device to be charged.
11. An electronic device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 9 when executing the computer program.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 9.
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