CN111884294A - Battery charging method, device and system and electronic equipment - Google Patents
Battery charging method, device and system and electronic equipment Download PDFInfo
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- CN111884294A CN111884294A CN202010769748.3A CN202010769748A CN111884294A CN 111884294 A CN111884294 A CN 111884294A CN 202010769748 A CN202010769748 A CN 202010769748A CN 111884294 A CN111884294 A CN 111884294A
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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
- H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- 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
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application provides a battery charging method, a device, a system and an electronic device. The method comprises the following steps: acquiring charging parameter information of a battery; calculating a charging current value and a cut-off charging voltage value according to the charging parameter information; charging the battery according to the charging current value; acquiring the charging state information of the battery; judging whether the battery is in a full charge state or not according to the cut-off charging voltage value and the charging state information; if the battery is in a full-charge state, the battery is stopped to be charged, so that the problems that the number of charger samples is large, and the charged battery pack core is in overvoltage and the like due to the fact that applied voltage platforms are different under the condition that the charger interfaces are the same are solved, and potential safety hazards are generated are solved.
Description
Technical Field
The present application relates to the field of battery management, and in particular, to a battery charging method, apparatus, system, and electronic device.
Background
The voltage of the storage battery is not constant in the constant current charging and discharging process. In constant current charging, the change in voltage is: and the battery rises, is stable and rises, and the battery can bulge or even explode when the battery is continuously charged. Different batteries require different charging currents and charging voltages, and in practical application, the battery is matched with a charger with consistent parameters for charging.
At present, the voltage platform level of various batteries differs, and is different from several volts to several hundred volts, thereby the charger that uses also diverse, to same producer, the voltage platform of charger is different, and the hardware that uses the charger is very different, makes the charger sample numerous, if under the charger interface the same condition, the voltage platform of using differs, just can cause danger such as the battery package electricity core excessive pressure that is charged, thereby produces the potential safety hazard.
Disclosure of Invention
An object of the embodiments of the present application is to provide a battery charging method, device, system and electronic device, so as to solve the problems existing in the prior art.
In a first aspect, an embodiment of the present invention provides a battery charging method, including: acquiring charging parameter information of a battery; calculating a charging current value and a cut-off charging voltage value according to the charging parameter information; charging the battery according to the charging current value; acquiring the charging state information of the battery; judging whether the battery is in a full charge state or not according to the cut-off charging voltage value and the charging state information; if the battery is in a full state, the charging of the battery is stopped.
In one embodiment, a battery includes at least one cell; acquiring charging parameter information of a battery, comprising: detecting an input voltage of the battery; and if the input voltage of the battery is detected, acquiring the battery cell capacity data and the battery cell cascade data of each battery cell in the battery.
In one embodiment, calculating the charging current value according to the charging parameter information includes: acquiring the number of cell parallel stages of the battery from the cell cascade data; and calculating the charging current value of the battery according to the cell capacity data and the cell parallel stage number.
In one embodiment, charging the battery according to the charging current value includes: judging whether the charging current value exceeds a preset charging current upper limit value or not; if the charging current value exceeds the preset charging current upper limit value, charging the battery according to the preset charging current upper limit value; and if the charging current value does not exceed the preset charging current upper limit value, charging the battery according to the charging current value.
In an embodiment, the charging parameter information further includes: a voltage threshold of each cell in the battery in a fully charged state; calculating a cutoff charging voltage value according to the charging parameter information, comprising: acquiring the series grade of the battery cells of the battery according to the battery cell cascade data; and calculating the cut-off charging voltage value of the battery according to the full charge voltage data of the battery cell and the series connection stage number of the battery cell.
In one embodiment, the charge state information includes a current voltage value; judging whether the battery is in a full charge state or not according to the cut-off charging voltage value and the charging state information, and the method comprises the following steps: judging whether the current voltage value is equal to a cut-off charging voltage value or not; and if the current voltage value is equal to the cut-off charging voltage value, generating battery full-charge state information.
In one embodiment, the charge state information includes a current voltage value; judging whether the battery is in a full charge state or not according to the cut-off charging voltage value and the charging state information, and the method comprises the following steps: judging whether the current voltage value is equal to the voltage value at the previous moment or not; if the current voltage value is equal to the voltage value at the previous moment, judging whether the current voltage value is equal to the cut-off charging voltage value or not; and if the current voltage value is equal to the cut-off charging voltage value, generating battery full-charge state information.
In a second aspect, an embodiment of the present invention provides a battery charging apparatus, including: the first acquisition module is used for acquiring the charging parameter information of the battery; the current calculation module is used for calculating a charging current value and a cut-off charging voltage value according to the charging parameter information; the charging control module is used for charging the battery according to the charging current value; the second acquisition module is used for acquiring the charging state information of the battery; the state detection module is used for judging whether the battery is in a full charge state or not according to the cut-off charging voltage value and the charging state information; and the power-off control module is used for stopping charging the battery if the battery is in a full-charge state.
In one embodiment, a battery includes at least one cell; the first obtaining module is further configured to: detecting an input voltage of the battery; and if the input voltage of the battery is detected, acquiring the battery cell capacity data and the battery cell cascade data of each battery cell in the battery.
In one embodiment, the current calculating module is further configured to: acquiring the number of cell parallel stages of the battery from the cell cascade data; and calculating the charging current value of the battery according to the cell capacity data and the cell parallel stage number.
In one embodiment, the charging control module is further configured to: judging whether the charging current value exceeds a preset charging current upper limit value or not; if the charging current value exceeds the preset charging current upper limit value, charging the battery according to the preset charging current upper limit value; and if the charging current value does not exceed the preset charging current upper limit value, charging the battery according to the charging current value.
In an embodiment, the charging parameter information further includes: a voltage threshold of each cell in the battery in a fully charged state; the current calculation module is further configured to: acquiring the series grade of the battery cells of the battery according to the battery cell cascade data; and calculating the cut-off charging voltage value of the battery according to the full charge voltage data of the battery cell and the series connection stage number of the battery cell.
In one embodiment, the charge state information includes a current voltage value; the state detection module is further configured to: judging whether the current voltage value is smaller than the cut-off charging voltage value or not; and if the current voltage value is smaller than the cut-off charging voltage value, generating the information of the full-charge state of the battery.
In one embodiment, the charge state information includes a current voltage value; the state detection module is further configured to: judging whether the current voltage value is equal to the voltage value at the previous moment or not; if the current voltage value is equal to the voltage value at the previous moment, judging whether the current voltage value is equal to the cut-off charging voltage value or not; and if the current voltage value is equal to the cut-off charging voltage value, generating battery full-charge state information.
In a third aspect, an embodiment of the present invention provides a battery charging system, including: the input end of the input electric modulation circuit is electrically connected with the external alternating current output end and is used for carrying out pulse width modulation, high-frequency voltage transformation and/or rectification filtering on the input alternating current; a master control circuit, an input end of the master control circuit being electrically connected to an output end of the input electrical modulation circuit, for performing the method of any of the foregoing embodiments; the power supply monitoring management circuit is used for receiving and executing the instruction of the main control circuit, the input end of the power supply monitoring management circuit is electrically connected with the output end of the input electric modulation circuit, and the controlled end of the power supply monitoring management circuit is electrically connected with the control end of the main control circuit; the battery socket output circuit is used for receiving and executing instructions of the main control circuit, the input end of the battery socket output circuit is electrically connected with the output end of the power supply monitoring management circuit, the controlled end of the battery socket output circuit is electrically connected with the control end of the main control circuit, and the output end of the battery socket output circuit is electrically connected with the input end of the energy storage device.
In a fourth aspect, an embodiment of the present invention provides an electronic device, including: a memory for storing a computer program; a processor for performing the method of any of the preceding embodiments.
The battery charging method, the battery charging device, the battery charging system and the electronic equipment can adapt to batteries of different models, charging parameters of the batteries can be obtained when the batteries are detected to be inserted, the obtained battery parameters are analyzed, the charging current, the full charge voltage and the like required by the batteries can be obtained, charging faults and the like of the batteries in a charging state can be actively detected, the batteries are protected, and the charging risk is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 2 is a schematic view of a battery charging system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a battery charging system according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of a battery charging method according to an embodiment of the present disclosure;
fig. 5 is a schematic flowchart of another battery charging method according to an embodiment of the present disclosure;
fig. 6 is a schematic flowchart of another battery charging method according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a battery charging device according to an embodiment of the present disclosure.
Icon: 1-an electronic device; 10-a bus; 11-a processor; 12-a memory; 200-a battery charging system; 300-an energy storage device; 400-battery charging circuit; 40-external alternating current; 41-input electrical modulation circuit; 42-a master control circuit; 43-power supply monitoring management circuit; 44-battery receptacle output circuit; 700-a battery charging device; 701-a first obtaining module; 702-a current calculation module; 703-a charging control module; 704-a second obtaining module; 705-state detection module; 706-power-off control module.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the present application, the terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the present embodiment provides an electronic apparatus 1 including: at least one processor 11 and a memory 12, one processor 11 being exemplified in fig. 1. The processor 11 and the memory 12 are connected by a bus 10, and the memory 12 stores instructions executable by the processor 11, and the instructions are executed by the processor 11 to enable the electronic device 1 to perform all or part of the procedures of the method in the embodiments described below, to calculate the charging current required for charging the battery according to the acquired charging parameter information of the battery, to detect the full charge state of the battery in the charging state, and to monitor the fault condition of the battery.
In an embodiment, the electronic device 1 may be a single chip, a mobile phone, a notebook computer, a desktop computer, or an intelligent battery pack.
Please refer to fig. 2, which is a schematic view of a battery charging system 200 provided in the present embodiment, including an energy storage device 300 and a battery charging circuit 400, wherein the energy storage device 300 may be a battery. When the battery is inserted into the battery charging circuit 400, the output terminal of the battery charging circuit 400 is connected to the external battery to form a loop, and the battery charging circuit 400 is in a charging state.
In an actual charging process, the number and capacity of the battery cells are different, and the series-parallel connection mode of the plurality of battery cells is also different, so that the input current for charging the battery is also different. Therefore, after the battery is inserted into the battery charging circuit 400, the battery charging circuit 400 needs to determine the charging parameters according to various cell parameters of the battery.
Referring to fig. 3, which is a schematic structural diagram of a battery charging system 200 according to an embodiment of the present disclosure, the battery charging system 200 includes an energy storage device 300 and a battery charging circuit 400. The battery charging circuit 400 includes: an input electric modulation circuit 41, a main control circuit 42, a power supply monitoring management circuit 43 and a battery socket output circuit 44.
The input end of the input electrical modulation circuit 41 is electrically connected to the output end of the external alternating current 40, the input end of the main control circuit 42 is electrically connected to the output end of the input electrical modulation circuit 41, the input end of the power monitoring management circuit 43 is electrically connected to the output end of the input electrical modulation circuit 41, the controlled end of the power monitoring management circuit 43 is electrically connected to the control end of the main control circuit 42, the input end of the battery socket output circuit 44 is electrically connected to the output end of the power monitoring management circuit 43, the controlled end of the battery socket output circuit 44 is electrically connected to the control end of the main control circuit 42, and the output end of the battery socket output circuit is electrically connected to the input end of the energy storage device 300.
The input electrical modulation circuit 41 is used for performing pulse width modulation, high frequency voltage transformation and/or rectification filtering on the input alternating current.
In one embodiment, the external ac power 40 may be a commercial power (110V or 240V ac), and the input electrical modulation circuit 41 may include: an EMI (Electromagnetic Interference) filter circuit increases the stability of an external input power source.
In an embodiment, the input electrical modulation circuit 41 may further include: the full-wave rectification circuit divides the externally input alternating current into two paths and one part of the two paths to enter the control circuit, and mainly supplies power and drives the singlechip and the field effect transistor at the low-voltage position in the main control circuit 42.
The main control circuit 42 is configured to generate an instruction for controlling the power monitoring management circuit 43 and the battery socket output circuit 44, and the power monitoring management circuit 43 and the battery socket output circuit 44 receive the instruction sent by the main control circuit 42 and execute the instruction of the main control circuit 42, so as to implement the detection of the battery and the control of the charging process.
In one embodiment, a relay switch is further provided between the power monitoring management circuit 43 and the battery outlet output circuit 44.
Please refer to fig. 4, which is a battery charging method provided by an embodiment of the present application, and the method can be executed by the electronic device 1 shown in fig. 1 or the battery charging circuit 400 shown in fig. 3, and can be applied in the scenario of the battery charging system 200 shown in fig. 2, so as to calculate a charging current required for charging a battery according to the acquired battery charging parameter information, detect a full charge state of the battery in a charging state, and monitor a fault condition of the battery. The method comprises the following steps:
step 401: and acquiring charging parameter information of the battery.
In this step, the battery includes at least one cell, and the charging parameter information may be the number of cells in the battery, series-parallel information between the cells, and/or a specification of each cell. For example, a battery has 10 battery cells, the connection mode of the battery cells is 5 strings and 2 parallel, the electric quantity of the battery cells is 2500mAh, and the charging parameter information includes the number of the battery cells 10, the serial and parallel information of 5 strings and 2 parallel, and the electric quantity of a single battery cell is 2500 mAh.
Step 402: and calculating a charging current value and a cut-off charging voltage value according to the charging parameter information.
In this step, the charging current value is a charging current value required for charging the battery, and in order to prevent the battery from bulging, overloading and even knocking, the battery needs to meet the charging current value set by the original factory. The charging current value is related to the electric quantity and the parallel stage, namely the charging current value is equal to the electric quantity. Taking the example that the charging parameter information includes the number of cells 10, the serial-parallel information of 5 serial-2 parallel connections, and the electric quantity of a single cell is 2500mAh, the required charging current value is 2.5A × 2 is 5A.
The cut-off charging voltage value is that after the battery is fully charged, the voltage of the battery reaches a constant voltage state, and at the moment, charging is not needed any more. The cut-off charging voltage value is related to the series stage number of the battery cells and the full charge voltage of the single cell, and the cut-off charging voltage value is the full charge voltage of the single cell. For example, if the full charge voltage of a single battery cell is 4.2V in series with the battery cells 5, the cut-off charge voltage value of the battery is 4.2V × 5V, which is 21V.
Step 403: and charging the battery according to the charging current value.
In this step, after the charging current value is calculated, the battery is charged according to the charging current value, and the battery enters a charged state.
In one embodiment, during the actual charging process, the charging current that the charging device can support is the charging current that has an upper threshold, and when the calculated charging current value exceeds the upper threshold, the battery is charged according to the current value specified by the upper threshold.
Step 404: the charge state information of the battery is acquired.
In this step, after the battery enters the charging state, the charging condition of the battery needs to be detected, for example, whether the battery is fully charged is detected, and the charging state information may be the current electric quantity percentage of the battery, or may be the current battery voltage value and/or the current battery current value.
Step 405: and judging whether the battery is in a full charge state or not according to the cut-off charging voltage value and the charging state information. If yes, go to step 406, otherwise return to step 404.
In this step, the obtained charging state information of the battery may be a current voltage value of the battery, and the current voltage value is compared with the cut-off charging voltage value, and if the current voltage value is equal to the cut-off charging voltage value, it indicates that the battery is fully charged, and if the current voltage value is smaller than the cut-off charging voltage value, it indicates that the battery is not fully charged.
Step 406: if the battery is in a full state, the charging of the battery is stopped.
In this step, the charging of the battery is stopped after the battery is fully charged, so as to prevent overcharge.
In one embodiment, the stopping of charging the battery may be after receiving the disconnection output command. The disconnection output instruction includes: when the battery is disconnected from the battery charging circuit 400, a disconnect output command is generated. The case where the battery is disconnected from the battery charging circuit 400 includes: the charging state information cannot be acquired due to manual pulling out of the battery, and the charging state information is abnormal due to short circuit of the battery.
Please refer to fig. 5, which is a battery charging method provided by an embodiment of the present application, and the method can be executed by the electronic device 1 shown in fig. 1 or the battery charging circuit 400 shown in fig. 3, and can be applied in the scenario of the battery charging system 200 shown in fig. 2, so as to calculate a charging current required for charging a battery according to the acquired battery charging parameter information, detect a full charge state of the battery in a charging state, and monitor a fault condition of the battery. The method comprises the following steps:
step 501: an input voltage of the battery is detected.
In this step, the input voltage of the battery can be detected when the battery is properly inserted into the circuit.
Step 502: and acquiring the cell capacity data and the cell cascade data of each cell in the battery.
In this step, if the input voltage of the battery is detected, it indicates that the battery is connected, and charging parameter information of the battery, such as cell capacity data and cell cascade data, needs to be acquired.
Step 503: and acquiring the battery cell parallel connection series of the battery from the battery cell cascade data.
In this step, the charging current value is calculated in relation to the cell capacity data and the number of cell parallel stages, that is, the charging current value is equal to the number of electricity parallel stages.
Step 504: and calculating the charging current value of the battery according to the cell capacity data and the cell parallel stage number.
In this step, taking the example that the charging parameter information includes the number of battery cells 10, 5 serial-to-parallel information of serial-to-parallel 2, and 2500mAh of electric quantity of a single battery cell, the required charging current value is 2.5A × 2 or 5A.
Step 505: and acquiring the series grade of the battery cells of the battery according to the battery cell cascade data.
In this step, the cut-off charging voltage value is related to the series connection number of battery cells and the full charge voltage of a single cell, and the cut-off charging voltage value is the full charge voltage of the single cell.
Step 506: and calculating the cut-off charging voltage value of the battery according to the full charge voltage data of the battery cell and the series connection stage number of the battery cell.
In this step, taking the example that the battery cells 5 are connected in series 2 and the full charge voltage of a single cell is 4.2V, the cut-off charge voltage value of the battery is 4.2V × 5V, which is 21V.
Step 507: and judging whether the charging current value exceeds a preset charging current upper limit value or not. If yes, go to step 508, otherwise go to step 509.
In this step, since the charging current supported by the charging device has an upper threshold value under the restriction of the actual charging device, when the calculated charging current value exceeds the upper threshold value, the battery is charged with a current value determined based on the upper threshold value, and when the calculated charging current value does not exceed the upper threshold value, the battery is charged with the charging current value.
Step 508: and charging the battery according to a preset charging current upper limit value.
In this step, if the charging current value exceeds the preset charging current upper limit value, it indicates that the device for charging cannot provide the current required by the charging current value, and the battery is charged according to the current maximum current value, that is, the preset charging current upper limit value.
In an embodiment, the preset charging current upper limit value is specified by factory settings of the charging device, for example, the maximum current of the charger itself is 10A, the calculated charging current value is 12A, and the charger cannot output 12A and can only charge the battery according to the maximum current 10A of the charger.
Step 509: the battery is charged according to the charging current value.
In this step, if the charging current value does not exceed the preset charging current upper limit value, it indicates that the battery can be normally charged according to the charging current value.
In an embodiment, the preset charging current upper limit value is specified by factory settings of the charging device, for example, the maximum current of the charger itself is 10A, the calculated charging current value is 8A, and the charger can charge the battery according to 8A.
Step 510: and acquiring the current voltage value of the battery.
In this step, after the battery enters the charging state, the charging condition of the battery needs to be detected, for example, whether the battery is fully charged is detected, and the charging state information may be the current battery voltage value.
Step 511: and judging whether the current voltage value is equal to the cut-off charging voltage value or not. If yes, go to step 512, otherwise return to step 510.
In this step, the cutoff charging voltage value and the current voltage value are compared, if the current voltage value is equal to the cutoff charging voltage value, it indicates that the battery is fully charged, and if the current voltage value is less than the cutoff charging voltage value, it indicates that the battery is not fully charged.
Step 512: battery full state information is generated.
In this step, if the current voltage value is equal to the cut-off charging voltage value, it indicates that the battery is fully charged.
Step 513: the charging of the battery is stopped.
In this step, after it is detected that the battery has been fully charged, the charging of the battery is stopped.
Please refer to fig. 6, which is a battery charging method provided by an embodiment of the present application, and the method can be executed by the electronic device 1 shown in fig. 1 or the battery charging circuit 400 shown in fig. 3, and can be applied in the scenario of the battery charging system 200 shown in fig. 2, so as to calculate a charging current required for charging a battery according to the acquired battery charging parameter information, detect a full charge state of the battery in a charging state, and monitor a fault condition of the battery. The method comprises the following steps:
step 601: an input voltage of the battery is detected. Please refer to the description of step 501 in the above embodiments.
Step 602: and if the input voltage of the battery is detected, acquiring the battery cell capacity data and the battery cell cascade data of each battery cell in the battery. Please refer to the description of step 502 in the above embodiments.
Step 603: and acquiring the battery cell parallel connection series of the battery from the battery cell cascade data. Please refer to the description of step 503 in the above embodiments.
Step 604: and calculating the charging current value of the battery according to the cell capacity data and the cell parallel stage number. Please refer to the description of step 504 in the above embodiments.
Step 605: and acquiring the series grade of the battery cells of the battery according to the battery cell cascade data. Please refer to the description of step 505 in the above embodiments.
Step 606: and calculating the cut-off charging voltage value of the battery according to the full charge voltage data of the battery cell and the series connection stage number of the battery cell. Please refer to the description of step 506 in the above embodiments.
Step 607: and judging whether the charging current value exceeds a preset charging current upper limit value or not. If so, go to step 608, otherwise go to step 609. Please refer to the description of step 507 in the above embodiment.
Step 608: and charging the battery according to a preset charging current upper limit value. Please refer to the description of step 508 in the above embodiments.
Step 609: the battery is charged according to the charging current value. Please refer to the description of step 509 in the above embodiment.
Step 610: and acquiring the current voltage value of the battery. Please refer to the description of step 510 in the above embodiments.
Step 611: and judging whether the current voltage value is equal to the voltage value at the previous moment or not. If yes, go to step 612, otherwise, go back to step 610.
In this step, the battery enters a constant voltage state after being fully charged or incapable of being continuously charged, and the voltage does not change with time, so that it is necessary to determine whether the battery is fully charged or incapable of being continuously charged when the current voltage value is equal to the voltage value at the previous time.
Step 612: and judging whether the current voltage value is equal to the cut-off charging voltage value or not. If yes, go to step 613, otherwise go to step 614.
In this step, if the current voltage value is equal to the voltage value at the previous time, it indicates that the battery is fully charged or cannot be charged continuously, and when the battery is fully charged, the voltage should be equal to the cut-off charging voltage value, and if the current voltage value is not equal to the cut-off charging voltage value, it indicates that the battery fails and cannot be charged continuously.
Step 613: battery full state information is generated.
In this section, if the current voltage value is equal to the cut-off charging voltage value, it is indicated that the battery is fully charged.
Step 614: the charging of the battery is stopped. Please refer to the description of step 510 in the above embodiments.
Please refer to fig. 7, which is a schematic diagram of a battery charging apparatus 700 according to an embodiment of the present disclosure, and the apparatus can be applied to the scenario of the battery charging system 200 shown in fig. 2, and can be executed by the electronic device 1 shown in fig. 1 or the battery charging circuit 400 shown in fig. 3, so as to calculate a charging current required for charging a battery according to the acquired battery charging parameter information, detect a full charge state of the battery in a charging state, and monitor a fault condition of the battery. The battery charging apparatus 700 specifically includes: the device comprises a first acquisition module 701, a current calculation module 702, a charging control module 703, a second acquisition module 704, a state detection module 705 and a power-off control module 706. The specific principle relationship is as follows:
the first obtaining module 701 is configured to obtain charging parameter information of a battery. Please refer to the description of step 401 in the above embodiment.
In an embodiment, the first obtaining module 701 is further configured to: an input voltage of the battery is detected. And if the input voltage of the battery is detected, acquiring the battery cell capacity data and the battery cell cascade data of each battery cell in the battery. Please refer to the description of steps 501-502 in the above embodiments.
The current calculating module 702 is configured to calculate a charging current value and a cut-off charging voltage value according to the charging parameter information. Please refer to the description of step 402 in the above embodiments.
In one embodiment, the current calculating module 702 is further configured to: and acquiring the battery cell parallel connection series of the battery from the battery cell cascade data. And calculating the charging current value of the battery according to the cell capacity data and the cell parallel stage number. Please refer to the description of steps 503-504 in the above embodiments.
In one embodiment, the current calculating module 702 is further configured to: acquiring the series grade of the battery cells of the battery according to the battery cell cascade data; and calculating the cut-off charging voltage value of the battery according to the full charge voltage data of the battery cell and the series connection stage number of the battery cell. Please refer to the description of steps 505 and 506 in the above embodiment.
And a charging control module 703 for charging the battery according to the charging current value. Please refer to the description of step 403 in the above embodiment.
In one embodiment, the charging control module 703 is further configured to: judging whether the charging current value exceeds a preset charging current upper limit value or not; if the charging current value exceeds the preset charging current upper limit value, charging the battery according to the preset charging current upper limit value; and if the charging current value does not exceed the preset charging current upper limit value, charging the battery according to the charging current value. Please refer to the description of steps 507-509 in the above embodiment.
A second obtaining module 704, configured to obtain the charging status information of the battery. Please refer to the description of step 404 in the above embodiments.
The state detection module 705 is configured to determine whether the battery is in a full charge state according to the cut-off charging voltage value and the charging state information. Please refer to the description of step 405 in the above embodiments.
In one embodiment, the charge state information includes a current voltage value; the state detection module 705 is further configured to: judging whether the current voltage value is smaller than the cut-off charging voltage value or not; and if the current voltage value is smaller than the cut-off charging voltage value, generating the information of the full-charge state of the battery. Please refer to the description of steps 510-512 in the above embodiments.
In one embodiment, the charge state information includes a current voltage value; the state detection module 705 is further configured to: judging whether the current voltage value is equal to the voltage value at the previous moment or not; if the current voltage value is equal to the voltage value at the previous moment, judging whether the current voltage value is equal to the cut-off charging voltage value or not; and if the current voltage value is equal to the cut-off charging voltage value, generating battery full-charge state information. Please refer to the description of steps 610 and 613 in the above embodiments.
And a power-off control module 706 for stopping charging the battery if the battery is in a full state. Please refer to the description of step 406 in the above embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of one logic function, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
It should be noted that the functions, if implemented in the form of software functional modules and sold or used as independent products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM) 12, a Random Access Memory (RAM) 12, a magnetic disk, an optical disk, or other various media capable of storing program codes.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above embodiments are merely examples of the present application and are not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (16)
1. A method of charging a battery, comprising:
acquiring charging parameter information of a battery;
calculating a charging current value and a cut-off charging voltage value according to the charging parameter information;
charging the battery according to the charging current value;
acquiring the charging state information of the battery;
judging whether the battery is in a full charge state or not according to the cut-off charging voltage value and the charging state information;
and if the battery is in a full-charge state, stopping charging the battery.
2. The method of claim 1, wherein the battery comprises at least one cell; the acquiring of the charging parameter information of the battery comprises:
detecting an input voltage of the battery;
and if the input voltage of the battery is detected, acquiring the battery cell capacity data and the battery cell cascade data of each battery cell in the battery.
3. The method of claim 2, wherein calculating a charging current value according to the charging parameter information comprises:
acquiring the number of battery cell parallel stages of the battery from the battery cell cascade data;
and calculating the charging current value of the battery according to the electric core capacity data and the electric core parallel connection series.
4. The method of claim 3, wherein charging the battery according to the charging current value comprises:
judging whether the charging current value exceeds a preset charging current upper limit value or not;
if the charging current value exceeds a preset charging current upper limit value, charging the battery according to the preset charging current upper limit value;
and if the charging current value does not exceed the preset charging current upper limit value, charging the battery according to the charging current value.
5. The method of claim 2, wherein the charging parameter information further comprises: a voltage threshold of each of the cells within the battery at a fully charged state; the calculating of the cut-off charging voltage value according to the charging parameter information includes:
acquiring the series grade number of the battery cells of the battery according to the battery cell cascade data;
and calculating the cut-off charging voltage value of the battery according to the full charge voltage data of the battery cell and the series connection stage number of the battery cell.
6. The method of claim 5, wherein the state of charge information comprises a current voltage value; the judging whether the battery is in a full charge state according to the cut-off charging voltage value and the charging state information comprises the following steps:
judging whether the current voltage value is equal to the cut-off charging voltage value or not;
and if the current voltage value is equal to the cut-off charging voltage value, generating battery full-charge state information.
7. The method of claim 5, wherein the state of charge information comprises a current voltage value; the judging whether the battery is in a full charge state according to the cut-off charging voltage value and the charging state information comprises the following steps:
judging whether the current voltage value is equal to the voltage value at the previous moment or not;
if the current voltage value is equal to the voltage value at the previous moment, judging whether the current voltage value is equal to the cut-off charging voltage value or not;
and if the current voltage value is equal to the cut-off charging voltage value, generating battery full-charge state information.
8. A battery charging apparatus, comprising:
the first acquisition module is used for acquiring the charging parameter information of the battery;
the current calculation module is used for calculating a charging current value and a cut-off charging voltage value according to the charging parameter information;
the charging control module is used for charging the battery according to the charging current value;
the second acquisition module is used for acquiring the charging state information of the battery;
the state detection module is used for judging whether the battery is in a full charge state or not according to the cut-off charging voltage value and the charging state information;
and the power-off control module is used for stopping charging the battery if the battery is in a full-charge state.
9. The apparatus of claim 8, wherein the battery comprises at least one cell; the first obtaining module is further configured to:
detecting an input voltage of the battery;
and if the input voltage of the battery is detected, acquiring the battery cell capacity data and the battery cell cascade data of each battery cell in the battery.
10. The apparatus of claim 9, wherein the current calculation module is further configured to:
acquiring the number of battery cell parallel stages of the battery from the battery cell cascade data;
and calculating the charging current value of the battery according to the electric core capacity data and the electric core parallel connection series.
11. The apparatus of claim 10, wherein the charging control module is further configured to:
judging whether the charging current value exceeds a preset charging current upper limit value or not;
if the charging current value exceeds a preset charging current upper limit value, charging the battery according to the preset charging current upper limit value;
and if the charging current value does not exceed the preset charging current upper limit value, charging the battery according to the charging current value.
12. The apparatus of claim 9, wherein the charging parameter information further comprises: a voltage threshold of each of the cells within the battery at a fully charged state; the current calculation module is further configured to:
acquiring the series grade number of the battery cells of the battery according to the battery cell cascade data;
and calculating the cut-off charging voltage value of the battery according to the full charge voltage data of the battery cell and the series connection stage number of the battery cell.
13. The apparatus of claim 12, wherein the charge status information comprises a current voltage value; the state detection module is further configured to:
judging whether the current voltage value is smaller than the cut-off charging voltage value or not;
and if the current voltage value is smaller than the cut-off charging voltage value, generating battery full-charge state information.
14. The apparatus of claim 12, wherein the charge status information comprises a current voltage value; the state detection module is further configured to:
judging whether the current voltage value is equal to the voltage value at the previous moment or not;
if the current voltage value is equal to the voltage value at the previous moment, judging whether the current voltage value is equal to the cut-off charging voltage value or not;
and if the current voltage value is equal to the cut-off charging voltage value, generating battery full-charge state information.
15. A battery charging system, comprising:
an energy storage device;
the input end of the input electric modulation circuit is electrically connected with the external alternating current output end and is used for carrying out pulse width modulation, high-frequency voltage transformation and/or rectification filtering on the input alternating current;
a master control circuit, an input end of the master control circuit being electrically connected with an output end of the input electrical modulation circuit, for performing the method of any one of the preceding claims 1-7;
the power supply monitoring management circuit is used for receiving and executing the instruction of the main control circuit, the input end of the power supply monitoring management circuit is electrically connected with the output end of the input electric modulation circuit, and the controlled end of the power supply monitoring management circuit is electrically connected with the control end of the main control circuit;
the battery socket output circuit is used for receiving and executing the instruction of the main control circuit, the output end of the battery socket output circuit is electrically connected with the input end of the energy storage device, the input end of the battery socket output circuit is electrically connected with the output end of the power supply monitoring management circuit, and the controlled end of the battery socket output circuit is electrically connected with the control end of the main control circuit.
16. An electronic device, comprising:
a memory for storing a computer program;
a processor for performing the method of any one of claims 1-7.
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| CN202010769748.3A CN111884294A (en) | 2020-08-03 | 2020-08-03 | Battery charging method, device and system and electronic equipment |
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| CN202010769748.3A CN111884294A (en) | 2020-08-03 | 2020-08-03 | Battery charging method, device and system and electronic equipment |
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| CN112886687A (en) * | 2021-04-09 | 2021-06-01 | 深圳云动未来科技有限公司 | Battery charging method, device, system, charger, medium and product |
| CN112910050A (en) * | 2021-03-12 | 2021-06-04 | 摩拜(北京)信息技术有限公司 | Charging control method and device and charging equipment |
| CN113872303A (en) * | 2021-10-22 | 2021-12-31 | 北京小米移动软件有限公司 | Charging control method and device, electronic equipment and storage medium |
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Application publication date: 20201103 |