CN110957785B - Battery assembly, charging control method and system - Google Patents

Battery assembly, charging control method and system Download PDF

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Publication number
CN110957785B
CN110957785B CN201911261746.7A CN201911261746A CN110957785B CN 110957785 B CN110957785 B CN 110957785B CN 201911261746 A CN201911261746 A CN 201911261746A CN 110957785 B CN110957785 B CN 110957785B
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Prior art keywords
voltage
electrode
battery assembly
battery
cell
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CN201911261746.7A
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CN110957785A (en
Inventor
徐超
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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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
    • H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery

Abstract

The embodiment of the invention discloses a battery assembly, a charging control method and a charging control system, which are applied to electrons with a control module, wherein the battery assembly comprises: a three-electrode cell and a monitoring unit; the three-electrode battery cell comprises a positive electrode, a reference electrode and a negative electrode; the battery assembly further comprises a ground terminal electrically connected to the negative electrode; the monitoring unit comprises a first pin, a second pin and a third pin, wherein the first pin, the second pin and the third pin are respectively connected with the anode, the reference pole and the cathode electrically, the monitoring unit further comprises an output end, and the output end is electrically connected with the control module. According to the embodiment of the invention, the actual use voltage of the three-electrode battery cell in the use process can be obtained, and then the battery assembly can be used more safely according to the voltage, so that the condition that the battery assembly is not used fully or is used excessively in the use process is reduced, and the use reliability and safety of the battery assembly are improved.

Description

Battery assembly, charging control method and system
Technical Field
The invention relates to the technical field of electronics, in particular to a battery pack, a charging control method and a charging control system.
Background
At present, most of batteries used in electronic devices are lithium ion batteries and lithium polymer bipolar batteries, that is, bipolar batteries having a positive electrode and a negative electrode. The positive electrode material of the two-electrode battery contains lithium compounds (lithium cobaltate, lithium manganate, lithium iron phosphate, ternary nickel cobalt manganese, etc.), the negative electrode material usually contains carbon compounds (graphite, silicon carbon, alloys, etc.), and the battery voltage is the potential difference between the positive electrode and the negative electrode of the battery.
However, as the battery ages, the positive electrode material and the negative electrode material of the battery undergo some irreversible structural changes, so that a difference exists between the actual use voltage of the battery and the initial voltage of the battery, but the initial voltage of the battery is still used as the use voltage of the battery during the use of the battery, so that the battery is not used fully or is used excessively during the use, and further, the use reliability and safety problems of the battery are brought.
Disclosure of Invention
The embodiment of the invention provides a battery assembly, a charging control method and a charging control system, which are used for solving the problems that in the prior art, the initial voltage of a battery is still used as the use voltage of the battery in the use process of the battery, so that the battery is not fully used or is excessively used in the use process, and the use reliability and safety of the battery are further caused.
According to a first aspect of embodiments of the present invention, there is provided a battery pack applied to an electronic apparatus having a control module, the battery pack including: a three-electrode cell and a monitoring unit;
the three-electrode battery cell comprises a positive electrode, a reference electrode and a negative electrode; the battery assembly further comprises a ground terminal electrically connected to the negative electrode;
the monitoring unit comprises a first pin, a second pin and a third pin, wherein the first pin, the second pin and the third pin are respectively connected with the anode, the reference pole and the cathode electrically, the monitoring unit further comprises an output end, and the output end is electrically connected with the control module.
According to a second aspect of embodiments of the present invention, there is provided a charge control method applied to an electronic device including the battery pack, the method including:
acquiring a voltage parameter of the battery assembly under the condition that the battery assembly is in a charging state; the voltage parameters comprise a first voltage, a second voltage, a positive electrode potential of the three-electrode cell and a negative electrode potential of the three-electrode cell;
adjusting the charging mode of the battery pack according to the voltage parameter;
the first voltage is the voltage of a three-electrode battery cell, and the voltage of the second voltage battery assembly is the voltage of the three-electrode battery cell.
According to a third aspect of the embodiments of the present invention, there is provided a charging control system applied to an electronic device, the charging control system including:
an acquisition module: the device comprises a voltage acquisition unit, a voltage acquisition unit and a control unit, wherein the voltage acquisition unit is used for acquiring voltage parameters of the battery assembly under the condition that the battery assembly is in a charging state; the voltage parameters comprise a first voltage, a second voltage, a positive electrode potential of the three-electrode cell and a negative electrode potential of the three-electrode cell;
an adjusting module: the charging mode of the battery assembly is adjusted according to the voltage parameter;
the first voltage is a voltage of a three-electrode cell, and the second voltage is a voltage of a battery assembly.
According to a fourth aspect of the embodiments of the present invention, there is provided an electronic device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the charging control method.
According to a fifth aspect of embodiments of the present invention, there is provided a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of a charging control method as set forth.
The embodiment of the invention discloses a three-electrode battery pack, which is applied to electronic equipment with a control module, and comprises: a three-electrode cell and a monitoring unit; the three-electrode battery cell comprises a positive electrode, a reference electrode and a negative electrode; the battery assembly further comprises a ground terminal electrically connected to the negative electrode; the monitoring unit comprises a first pin, a second pin and a third pin, wherein the first pin, the second pin and the third pin are respectively connected with the anode, the reference pole and the cathode electrically, the monitoring unit further comprises an output end, and the output end is electrically connected with the control module. The battery pack comprises a three-electrode battery cell, a reference pole is introduced into the three-electrode battery cell relative to the existing battery cell, the monitoring unit can monitor the anode, cathode and reference pole voltages of the three-electrode battery cell by using a first pin, a second pin and a third pin, so that the real use voltage of the three-electrode battery cell in the use process is obtained, the battery pack can be used more safely according to the voltage, the situation that the battery pack is used insufficiently or excessively in the use process is reduced, and the reliability and safety of the use of the battery pack are improved.
Drawings
Fig. 1 is a schematic structural diagram of a battery assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another battery pack according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an application of a battery assembly in an electronic device according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating steps of a charging control method according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating steps of another charging control method according to an embodiment of the present invention;
FIG. 6 shows a battery pack during charging Vbat, V according to an embodiment of the present inventionIs just、VNegative poleA graph of potential change of (a);
fig. 7 is a schematic structural diagram of a charging control system according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention discloses a battery assembly applied to an electronic device with a control module, where the battery assembly includes: a three-electrode cell 10 and a monitoring unit 20; the three-electrode battery cell comprises a positive electrode 101, a reference electrode 102 and a negative electrode 103; the battery assembly further comprises a ground terminal electrically connected to the negative electrode; the monitoring unit comprises a first pin 201, a second pin 202 and a third pin 203; the first pin 201, the second pin 202 and the third pin 203 are electrically connected to the reference electrode 102, the negative electrode 103, the monitoring unit further includes an output end electrically connected to the control module.
In the embodiment of the present invention, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
In the embodiment of the present invention, the three-electrode cell 10 may be a three-electrode cell, or may be a three-electrode core assembly formed by connecting a plurality of three-electrode cells in series or in parallel, and the three-electrode cell 10 may discharge externally or charge externally. The electrode is characterized by comprising three electrodes (a positive electrode, a negative electrode and a reference electrode), wherein the reference electrode is added besides the conventional positive electrode and the conventional negative electrode. The three-electrode battery cell of the battery assembly can be used more accurately and safely by adding the reference electrode, and the use reliability of the battery assembly can be improved.
The monitoring unit 20 is provided with a first pin 201, a second pin 202 and a third pin 203, wherein the first pin 201, the second pin 202 and the third pin 203 are respectively electrically connected with the positive electrode 101, the reference electrode 102 and the negative electrode 103 of the three-electrode cell 10, so as to determine a first voltage according to the voltage between the positive electrode 101 and the reference electrode 103 of the three-electrode cell and determine a second voltage according to the voltage between the negative electrode 102 and the reference electrode 103 of the three-electrode cell; the positive electrode potential of the three-electrode battery cell is voltage obtained by electrically connecting with the positive electrode of the three-electrode battery cell, and the negative electrode potential of the three-electrode battery cell is voltage of a grounding end of the battery assembly; the monitoring unit 20 sends the positive electrode potential and the negative electrode potential to the electronic device, and the control module of the electronic device judges the voltage state of the battery assembly according to the positive electrode potential and the negative electrode potential. In the embodiment of the present invention, the battery assembly may monitor the positive electrode potential and the negative electrode potential of the three-electrode electric core 10 in real time, and send the positive electrode potential and the negative electrode potential of the three-electrode electric core 10 to the control module of the electronic device, the control module of the electronic device obtains a more accurate actual use voltage of the three-electrode electric core 10 according to the positive electrode potential and the negative electrode potential of the three-electrode electric core 10, and adjusts the charging voltage of the three-electrode electric core 10 in the charging process based on the actual use voltage, so as to improve the service life and the safety of the battery assembly.
Further, referring to fig. 2, the battery pack further includes a current detection unit 30;
the current detection unit 30 comprises a sampling resistor, one end of the current detection unit is electrically connected with the negative electrode, and the other end of the current detection unit is electrically connected with the third pin of the monitoring unit.
In the embodiment of the present invention, the current detection unit 30 includes a sampling resistor, and calculates a current flowing into or flowing out of the three-electrode electric core according to a voltage at two ends of the sampling resistor and a resistance value of the sampling resistor, and the monitoring unit 20 is electrically connected to two ends of the current detection unit 30 to obtain a voltage difference between the two ends of the current detection unit 30, so as to obtain a first voltage difference. A first preset voltage is stored in the monitoring unit 20, and the first preset voltage is calculated according to the critical current and the sampling resistance when the three-electrode electric core 10 is subjected to overcurrent. After obtaining the first voltage difference, the detecting unit 20 compares the first voltage difference with the first preset voltage to obtain a first comparison result. Optionally, the first comparison result comprises: the first voltage difference is greater than the first preset voltage or less than or equal to the first preset voltage. The monitoring unit 20 sends the first comparison result to a control module of the electronic device, and the control module of the electronic device determines whether the three-electrode electric core 10 is in an overcurrent state according to the first comparison result, specifically, when the first voltage difference is greater than the first preset voltage, it is determined that the three-electrode electric core 10 is in the overcurrent state, otherwise, the three-electrode electric core 10 is in a non-overcurrent state. In the embodiment of the present invention, the monitoring unit 20 can monitor the current flowing into or out of the three-electrode cell 10 in real time, and take subsequent measures when the three-electrode cell 10 is overcurrent, so as to ensure the safety of the battery assembly during the charging or discharging process, and improve the service life of the battery assembly.
Optionally, the monitoring unit 20 is further configured to compare the first voltage difference with a second preset voltage to obtain a second comparison result, and send the second comparison result to a control module of an electronic device, so as to monitor whether the three-electrode electrical core 10 is short-circuited according to the second comparison result.
In the embodiment of the present invention, a second preset voltage is stored in the monitoring unit 20, and after the monitoring unit 20 obtains the first voltage difference, the first voltage difference is compared with the second preset voltage, where the second preset voltage is calculated according to the critical current and the sampling resistance when the three-electrode electric core 10 is short-circuited. After obtaining the first voltage difference, the monitoring unit 20 compares the first voltage difference with the second preset voltage to obtain a second comparison result. Optionally, the second comparison result includes that the first voltage difference is greater than the second preset voltage or that the first voltage difference is less than or equal to the second preset voltage. The monitoring unit 20 sends the second comparison result to a control module of the electronic device, and the control module of the electronic device determines whether the three-electrode cell 10 is in a short-circuit state according to the second comparison result, specifically, when the first voltage difference is greater than the second preset voltage, it is determined that the three-electrode cell 10 is in the short-circuit state, otherwise, the three-electrode cell 10 is in a non-short-circuit state. In the embodiment of the present invention, the monitoring unit 20 may monitor the current flowing into or flowing out of the three-electrode cell 10 in real time, and take subsequent measures when the three-electrode cell 10 is short-circuited, so as to ensure the safety of the battery assembly during the charging or discharging process, and improve the service life of the battery assembly.
Optionally, the battery assembly further comprises an electricity meter 40;
the fuel gauge 40 may be electrically connected to the positive electrode 101 of the three-electrode cell 10, may also be electrically connected to the negative electrode 102 of the three-electrode cell, and may also be electrically connected to the reference electrode 103 of the three-electrode cell.
In this embodiment of the present invention, the fuel gauge 40 is configured to obtain a state parameter of the three-electrode cell 10, where the state parameter includes at least one of a voltage of the three-electrode cell, a positive electrode potential of the three-electrode cell, a negative electrode potential of the three-electrode cell, a state of charge, an impedance, and a capacity; the state of charge is a ratio of the remaining capacity of the three-electrode cell 10 after a period of use to the capacity of the fully charged state thereof. After the three-electrode battery cell 10 is used for a period of time, the state of charge, the impedance and the capacity of the three-electrode battery cell are changed, the health parameters are compared with preset health parameters stored in the fuel gauge (the preset health parameters are the state of charge, the impedance and the capacity of the three-electrode battery cell under the condition of non-use), the aging state of the three-electrode battery cell 10 is obtained, and based on the aging state, the use condition of the battery pack can be mastered so as to use the subsequent use of the battery pack as a reference, so that the service life of the battery pack is prolonged.
Optionally, the battery assembly further comprises an identification unit 50;
the identification unit 50 is configured to acquire identification information of the battery pack.
In the embodiment of the present invention, as a specific example, the identification unit 50 is generally composed of a resistor and a capacitor connected in series, and is used for acquiring the identification information of the battery assembly. As another specific example, the identity information of the battery pack may be written in the electricity meter 40, and the identity recognition unit 50 acquires the identity information of the battery pack from the electricity meter 40 and sends the acquired identity information to a control module of an electronic device. Optionally, preset identity information of the battery assembly is stored in the control module of the electronic device, and the electronic device compares the identity information of the battery assembly with the preset identity information of the battery assembly, so as to determine whether the battery assembly is an original battery assembly of the electronic device. When the battery pack is the original battery pack, the mode of charging faster can be selected for charging when charging, and under the condition that the battery pack is not the original battery pack, the mode of charging safer is selected for charging. The identity recognition unit 50 in the embodiment of the present invention can recognize the identity information of the battery assembly, and provide a reference for the charging mode of the battery assembly in the charging process. By identifying the identity information of the battery pack and selecting a charging mode according to the identity information, the safety of the battery pack in the charging process can be improved.
Optionally, the battery assembly further includes a temperature unit 60, and the temperature unit 60 is electrically connected to the monitoring unit 20, and is configured to acquire the temperature of the battery assembly and send the temperature of the battery assembly to the control module of the electronic device.
In an embodiment of the present invention, the temperature unit 60 may include an NTC (negative temperature coefficient thermistor) having a lower resistance value as the temperature is higher; the temperature unit 60 is configured to obtain the temperature of the battery assembly, send the temperature of the battery assembly to the control module, store a preset temperature in the control module, and compare the temperature of the battery assembly with the preset temperature to obtain a third comparison result. Optionally, the third comparison result includes: the temperature of the battery assembly is higher than the preset temperature or the temperature of the battery assembly is equal to or lower than the preset temperature. When the temperature of the battery assembly is higher than the preset temperature, it is determined that the battery assembly is in an over-temperature state, and the electronic device generates a subsequent action to control the over-temperature state of the battery assembly, for example, the battery assembly is stopped being charged or a client terminal which consumes too fast electric quantity and is opened in the electronic device is closed. According to the embodiment of the invention, the temperature of the battery assembly is acquired, whether the battery assembly is in the over-temperature state or not is discovered, and when the battery assembly is in the over-temperature state, subsequent measures can be taken immediately to cool the battery assembly, so that the battery assembly is prevented from being burnt out, and the service life of the battery assembly is prolonged.
Optionally, the battery assembly further comprises a switching unit 70;
one end of the switch unit 70 is electrically connected to the current detection unit 30, and the other end is electrically connected to the monitoring unit 20;
the monitoring unit 20 is further configured to, when a state change occurs in the three-electrode electric core 10, send the state change to an electronic device, and control the switching unit 70 according to an instruction of the electronic device, where the state of the three-electrode electric core 10 includes a normal state and an abnormal state, and the abnormal state includes: over-voltage, under-voltage, over-current, or short circuit.
In an embodiment of the present invention, the switch unit 70 may include a first MOS transistor (metal-oxide semiconductor field effect transistor) and a second MOS transistor, where the first MOS transistor and the second MOS transistor are connected in parallel and are respectively used for controlling input and output of the current of the three-electrode electrical core 10. The monitoring unit 20 is electrically connected to the switch unit 70, and when the monitoring unit 20 obtains that a state change occurs in the three-electrode battery cell 10, the state change is sent to an electronic device, where the state of the three-electrode battery cell 10 includes a normal state and an abnormal state, and the abnormal state includes: over-voltage, under-voltage, over-current, or short circuit. As a specific example, when the state of the three-electrode cell 10 changes from the normal state to the overvoltage state, the control module of the electronic device controls the first MOS transistor of the switch unit 70 to turn off, so as to turn off the charging circuit of the electrode cell 10, but the external discharge of the three-electrode cell 10 is not affected, and the three-electrode cell 10 can discharge through the second MOS transistor.
Optionally, the battery assembly further includes a pin unit 80, where one end of the pin unit 80 is electrically connected to the positive electrode 101 of the three-electrode electric core 10, the monitoring unit 20, the electricity meter unit 40, the temperature unit 60, and the identity recognition unit 50, respectively, and the other end of the pin unit is connected to the electronic device, and is configured to obtain a pin parameter of the battery assembly, send the pin parameter to the electronic device, and install the battery assembly into the electronic device; the pin unit includes various pins, such as: the monitoring device comprises a positive electrode potential pin, a negative electrode potential pin, a reference electrode potential pin, a first voltage pin and a second voltage pin which are connected with a monitoring unit, a communication pin connected with a fuel gauge unit, a temperature information pin connected with a temperature unit, an identity information pin connected with an identity recognition unit and a grounding pin 21.
The pin parameters include: the battery pack comprises a positive electrode potential of a three-electrode battery cell, a first voltage, a second voltage, an electric quantity of a battery, a temperature of the battery pack, identity information of the battery pack and a negative electrode potential of the three-electrode battery cell.
In the embodiment of the present invention, the electronic device obtains the state of the battery assembly by obtaining the pin parameter, for example, the electronic device obtains the voltage state of the three-electrode electric core by obtaining the positive electrode potential, the negative electrode potential and the reference electrode potential; acquiring the temperature of the battery assembly to obtain whether the battery assembly is in an over-temperature state; acquiring identity information of the battery assembly to obtain whether the battery assembly is an original battery assembly or not, and determining a charging mode of the battery assembly according to the identity information of the battery assembly; in the embodiment of the invention, the pin unit can transmit the pin parameters of the battery assembly to the control module, and the control module monitors the state of the battery assembly so as to react in time when the state of the battery assembly changes, thereby improving the safety of the battery assembly and the service life of the battery assembly.
The embodiment of the invention discloses a three-electrode battery pack, which is applied to electronic equipment with a control module, and comprises: a three-electrode cell and a monitoring unit; the three-electrode battery cell comprises a positive electrode, a reference electrode and a negative electrode; the battery assembly further comprises a ground terminal electrically connected to the negative electrode; the monitoring unit comprises a first pin, a second pin and a third pin, wherein the first pin, the second pin and the third pin are respectively connected with the anode, the reference pole and the cathode electrically, the monitoring unit further comprises an output end, and the output end is electrically connected with the control module. The battery component comprises a three-electrode battery cell, a reference electrode is introduced into the three-electrode battery cell relative to the existing battery cell, the monitoring unit can monitor the anode, the cathode and the reference electrode voltage of the three-electrode battery cell in real time by utilizing a first pin, a second pin and a third pin, so that the real use voltage of the three-electrode battery cell in the use process is obtained, the battery component can be used more safely according to the voltage, the condition that the battery component is not used fully or excessively in the use process is reduced, and the use reliability and the use safety of the battery component are improved.
The embodiment of the invention discloses electronic equipment which comprises the three-electrode battery component.
The electronic device comprises a pin access unit, wherein the pin access unit is coupled with the pin unit of the battery assembly and is configured to access the battery assembly into the electronic device.
In an embodiment of the present invention, referring to a schematic structural diagram of an application of a battery assembly in an electronic device described in fig. 3, the pin access unit 90 is coupled to the pin unit 80 of the battery assembly, so as to access the battery assembly into the electronic device, and the electronic device has a control module, and the battery assembly transmits a pin parameter of the battery assembly to the control module of the electronic device through the pin unit 80. The control module of the electronic device further controls the power adapter according to the pin parameters sent by the battery pack pin unit 80.
Optionally, the control module of the electronic device includes a charging management module, and the charging management module is configured to control a charging mode of the battery assembly and a charging voltage in a charging process. The control module of the electronic device further includes an OVPMOS transistor (overvoltage protection switch), and when the three-electrode electric core is in an overvoltage condition during the charging process, the OVPMOS transistor is disconnected, and the power adapter 100 stops charging the three-electrode electric core. The control module of the electronic equipment further comprises an anti-reverse-plugging MOS (metal oxide semiconductor) tube (anti-reverse-plugging switch) for preventing the battery assembly of the electronic equipment from being reversely connected with a power supply when being charged, so that the battery assembly is protected. The power adapter 100 includes a USB interface for connecting with the electronic device. The power adapter further comprises a charging FPC (flexible circuit board) which is used for controlling parameters such as charging voltage provided by the power adapter to the electronic equipment. After acquiring the positive electrode potential, the negative electrode potential, the first voltage and the second voltage of the three-electrode battery core, a charging IC in a control module of the electronic equipment determines a charging voltage Vcharge of the battery assembly and sends the charging voltage Vcharge to a power adapter, and the power adapter charges the battery assembly according to the charging voltage Vcharge of the battery assembly.
As a specific example, the control module of the electronic device can control the power adapter to control the charging voltage of the charging process of the battery pack according to the pin parameter. And the discharge voltage of the battery pack in the discharge process can be controlled according to the acquired pin parameters. Further, the pin parameters include: the battery pack comprises a positive electrode potential of the battery pack, a first voltage, a second voltage, a temperature of the battery pack, identity information of the battery pack and a negative electrode potential of the battery pack.
Optionally, the control module of the electronic device determines, according to the first voltage and the second voltage, whether the three-electrode battery cell is in an overvoltage or undervoltage state in the charging and discharging process, or whether the three-electrode battery cell is in the overvoltage or undervoltage state in the charging and discharging process, or whether the positive electrode potential and the negative electrode potential of the battery cell are in the overvoltage or undervoltage state in the charging and discharging process, and if the three-electrode battery cell is in the overvoltage state in the charging and discharging process, the control module of the electronic device controls the power adapter 100 to reduce the charging voltage; if the three-electrode cell is in an under-voltage state in the charging and discharging processes, the control module of the electronic device controls the power adapter 100 to increase the charging voltage. The control module of the electronic equipment stores a normal charging voltage range of the three-electrode battery cell, and when the normal charging voltage range is exceeded in the charging and discharging process, the three-electrode battery cell is considered to be in an overvoltage state in the charging process; and when the voltage is lower than the normal charging voltage range in the charging and discharging processes, the three-electrode cell is considered to be in an undervoltage state in the charging process.
When the temperature of battery pack that electronic equipment's control module acquireed is too high, electronic equipment's control module control adapter 100 pause to battery pack charges, works as when battery pack's temperature resumes normally, electronic equipment's control module control adapter 100 charges again to battery pack. The control module of the electronic equipment stores a normal temperature range of the battery pack, and when the temperature of the battery pack exceeds the normal temperature range, the temperature of the battery pack is considered to be too high.
The control module of the electronic equipment acquires the positive electrode potential, the negative electrode potential, the first voltage and the second voltage of the battery assembly; when the difference between the positive electrode potential of the battery assembly and the ground terminal potential of the battery assembly is smaller than the discharge termination voltage of the battery assembly, the control module of the electronic device controls the battery assembly to terminate discharge. Optionally, a discharge termination voltage of the battery assembly is stored in a control module of the electronic device.
The invention discloses a charging control method, which is applied to electronic equipment, wherein the electronic equipment comprises a three-electrode battery pack, and the method comprises the following steps of:
step 301, acquiring a voltage parameter of the battery assembly under the condition that the battery assembly is in a charging state; the voltage parameters include a first voltage, a second voltage, a positive electrode potential of the battery assembly, and a negative electrode potential of the battery assembly.
And 302, adjusting the charging mode of the battery assembly according to the voltage parameter.
The first voltage is a cell voltage, and the second voltage is a battery voltage (which is a voltage drop caused by the cell voltage plus the impedance of the protection plate in the charging and discharging processes). The positive electrode potential of the three-electrode battery cell is voltage obtained by electrically connecting the reference electrode with the positive electrode of the three-electrode battery cell, and the negative electrode potential of the three-electrode battery cell is voltage obtained by electrically connecting the reference electrode with the negative electrode of the three-electrode battery cell.
In the embodiment of the invention, under the condition that the battery assembly is charged, voltage parameters of the battery assembly are obtained, wherein the voltage parameters include a first voltage, a second voltage, a positive electrode potential of a three-electrode electric core and a negative electrode potential of the three-electrode electric core of the battery assembly; specifically, the first voltage is a voltage between an anode and a cathode of the tertiary battery cell, and the second voltage is a sum of the first voltage and a voltage drop caused by protection plate impedance in a charging and discharging process; the positive electrode potential of the three-electrode battery cell is voltage obtained by electrically connecting the reference electrode with the positive electrode of the three-electrode battery cell, and the negative electrode potential of the three-electrode battery cell is voltage obtained by electrically connecting the reference electrode with the negative electrode of the three-electrode battery cell. And after the electronic equipment obtains the voltage parameter of the battery pack, controlling a power adapter of the electronic equipment to adjust a charging mode according to the voltage parameter.
Optionally, referring to fig. 5, the present invention discloses a charging control method, including:
step 501, acquiring identity information of the battery pack through an identity recognition unit;
in the embodiment of the invention, the battery assembly further comprises an identity recognition unit, one end of the identity recognition unit is electrically connected with the control module, and the other end of the identity recognition unit is electrically connected with the three-electrode battery cell; the identity recognition unit is generally composed of a resistor and a capacitor connected in series and used for acquiring identity information of the battery assembly. As another specific example, the identity information of the battery pack may also be written in the electricity meter, and the identity recognition unit acquires the identity information of the battery pack from the electricity meter and sends the acquired identity information to the electronic device. It is understood that the embodiment of the present invention may also use other methods to obtain the identity information of the three-electrode battery assembly, and the present invention is not limited thereto.
Step 502, under the condition that the identity information meets a fourth preset condition, controlling the power adapter to charge the battery assembly according to the mode of the highest output power of the adapter through the control module; and under the condition that the identity information does not meet the fourth preset condition, controlling the power adapter to charge the battery pack according to the lowest output power mode of the adapter.
In an embodiment of the present invention, preset identity information of a battery module is stored in a control module of the electronic device, and the fourth preset condition is: the identity information of the battery pack is the same as the preset identity information of the battery pack. When the identity information meets a fourth preset condition, it indicates that the battery pack is an original battery pack of the electronic device, and when charging, a mode with a faster charging speed may be selected for charging, for example: the maximum power output mode of the adapter. When the identity information does not satisfy the fourth preset condition, it is indicated that the battery pack is not an original battery pack of the electronic device, and when charging, a safer charging mode is selected for charging, for example: the adapter outputs the lowest power output charging mode. The identity recognition unit in the embodiment of the invention can recognize the identity information of the battery pack and provides a reference basis for the charging mode of the battery pack in the charging process. By identifying the identity information of the battery pack and selecting a charging mode according to the identity information, the safety of the battery pack in the charging process can be improved.
Step 503, acquiring a voltage parameter of the battery assembly under the condition that the battery assembly is in a charging state; the voltage parameters include a first voltage, a second voltage, a positive electrode potential of the three-electrode cell, and a negative electrode potential of the three-electrode cell.
In this embodiment, this step is the same as the step 301, and is not described herein again.
Step 504, sending first control information to a power adapter of the electronic device through a control module of the electronic device under the condition that the voltage parameter meets a first preset condition; and the power adapter controls the battery assembly to be charged in a constant voltage charging mode according to the first control information.
In the embodiment of the present invention, the first preset condition is that a difference between the cell voltage and the positive electrode potential is smaller than a first threshold value, and a difference between the cell voltage and the negative electrode potential is larger than a second threshold value in a charging process. The voltage (first voltage) of the three-electrode cell is a voltage difference between a positive electrode potential of the three-electrode cell and a negative electrode potential of the three-electrode cell. And under the condition that the voltage parameter meets the first preset condition, if the real-time voltage of the battery assembly is indicated to reach a fast full state, sending a first control signal to the power adapter, wherein the first control signal is used for controlling the power adapter to charge the battery assembly according to a constant-voltage charging mode, and the safety is improved.
As a specific example, referring to FIG. 6, as the battery ages, the positive potential V of the three-electrode cell during chargingIs justThe difference between the first voltage and the second voltage is larger and larger, and the negative electrode potential V of the three-electrode battery cell is larger and largerNegative poleAnd the first voltage is also increasingly larger. In the charging process of the electronic equipment, the positive electrode potential of the three-electrode battery cell can be acquired through the positive electrode pin and the reference electrode pin, the negative electrode potential of the three-electrode battery cell is acquired through the negative electrode pin and the reference electrode pin, and V is acquired through the positive electrode potential pinIs justThrough negative potential pin VNegative poleAnd the first voltage of the battery assembly is the voltage difference between the positive electrode potential and the negative electrode potential of the three-electrode battery cell, and the second voltage Vbat is the sum of the first voltage and the voltage drop caused by a protection plate of the battery assembly in the charging process. The first preset condition is the voltage Vbat of the battery assembly and the positive pole potential VIs justWhen the difference between the voltage Vbat and the negative electrode potential V of the battery component satisfies a first threshold valueNegative poleWhen the difference value between the first threshold value and the second threshold value meets a second threshold value, the adapter is controlled to charge the battery assembly in a constant voltage charging mode; for example: as can be seen from fig. 6, the electronic device control module simultaneously monitors the battery module second voltage Vbat and the positive potential VIs justOr negative electrode potential VNegative poleWhen Vbat and VIs justThe difference between is less than the set first threshold, and Vbat and VNegative poleWhen the difference value is larger than the second threshold value, entering a constant voltage charging stage. When in useThe Vbat and VIs justThe difference between is 0.02V, and when Vbat and V are saidNegative poleWhen the difference between them reaches 4.52V, the charge cut-off phase is entered. The safety of the battery pack in the charging process is ensured.
Step 505, determining that the battery assembly is in a low-charge state under the condition that the voltage parameter meets a second preset condition, and controlling a power adapter of the electronic equipment to charge the battery assembly according to a high-power charging mode through the control module;
step 506, when the voltage parameter meets a third preset condition, determining that the battery assembly is in a high-charge state, and controlling a power adapter of the electronic device to charge the battery assembly according to a low-power charging mode through the control module.
In this embodiment of the present invention, the second preset condition may be that the first voltage and the second voltage are smaller than a preset third threshold, or that the positive electrode potential of the three-electrode electric core is smaller than a fourth threshold and the negative electrode potential of the three-electrode electric core is greater than a preset fifth threshold, and the battery assembly is considered to be in a low state of charge. It should be noted that the low state of charge can be determined more accurately when the positive electrode potential of the three-electrode cell is smaller than the fourth threshold and the negative electrode potential of the three-electrode cell is larger than the preset fifth threshold. In this case, if the first voltage and the second voltage are greater than or equal to a preset third threshold, or the positive electrode potential of the three-electrode cell is greater than or equal to a preset fourth threshold and the negative electrode potential of the three-electrode cell is less than or equal to a preset fifth threshold, the battery assembly is not charged in a high-power charging manner.
The third preset condition may be that the voltage between the first voltage and the second voltage is greater than a preset sixth threshold, or that the positive electrode potential is greater than a seventh threshold and the negative electrode potential is less than a preset eighth threshold, the battery assembly is considered to be in a high charge state. It should be noted that the high state of charge can be determined more accurately when the positive electrode potential is greater than the seventh threshold and the negative electrode potential is less than the preset eighth threshold. In this case, the difference between the first voltage and the second voltage is less than or equal to a preset sixth threshold, or the positive electrode potential is less than or equal to a seventh threshold and the negative electrode potential is greater than or equal to a preset eighth threshold, the high power charging is continued.
According to the embodiment of the invention, the charge state of the three-electrode battery cell can be acquired in real time in the charging process by monitoring the voltage parameter of the three-electrode battery cell, so that safer charging detection is realized.
Step 507, acquiring the positive electrode potential of the three-electrode battery cell and the negative electrode potential of the three-electrode battery cell in the discharging process of the battery assembly.
In the embodiment of the invention, in the discharging process of the battery assembly, the method detects the positive electrode potential of the three-electrode battery cell and the negative electrode potential of the three-electrode battery cell so as to obtain the voltage of the three-electrode battery cell, so as to detect the voltage of the three-electrode battery cell in the discharging process, and thus, the safety of the discharging process of the electronic equipment is improved.
And step 508, if the difference between the positive electrode potential of the three-electrode cell and the negative electrode potential of the three-electrode cell is smaller than the discharge termination voltage of the three-electrode cell, controlling the battery assembly to terminate discharge.
In the embodiment of the present invention, in the discharging process of the three-electrode cell, when the voltage of the three-electrode cell is smaller than the discharge termination voltage of the three-electrode cell, it indicates that the voltage of the three-electrode cell is already smaller than the preset safety threshold, and the discharge needs to be terminated, otherwise, the structure of the three-electrode cell is damaged, and the three-electrode cell is irreversibly damaged. In the embodiment of the invention, the voltage of the three-electrode cell is monitored in real time in the discharging process of the three-electrode cell, so that the voltage of the three-electrode cell can be prevented from continuously discharging outwards when the voltage of the three-electrode cell is less than the final voltage of the three-electrode cell, and the use safety of the three-electrode cell and the service life of the three-electrode cell are improved.
Optionally, the battery assembly further comprises a temperature unit electrically connected with the control module, the method comprising: acquiring the temperature of the battery assembly through the temperature unit; when the temperature of battery pack surpassed preset temperature, through control module group reduces battery pack's discharge current, perhaps, through control module group control electronic equipment's power adapter reduces charging current.
In an embodiment of the present invention, the temperature unit may include an NTC (negative temperature coefficient thermistor) having a lower resistance value as the temperature is higher; the temperature unit with the control module group electricity is connected, monitoring unit 20 is through monitoring NTC's resistance, acquires battery pack's temperature, the control module group has been saved and has been preset the temperature, will battery pack's temperature with preset the temperature and contrast, work as battery pack's temperature is higher than when presetting the temperature, through the control module group reduces battery pack's discharge current, perhaps, through control module group control electronic equipment's power adapter reduces charging current. The control module is used for reducing the discharge current of the battery pack, and can be used for closing a client which is opened in the electronic equipment and consumes too fast electric quantity. According to the embodiment of the invention, the temperature of the battery assembly is monitored, whether the battery assembly is in the over-temperature state or not is timely found, and when the battery assembly is in the over-temperature state, subsequent measures can be immediately taken, so that the battery assembly is cooled, the situation that the battery assembly is burnt out is avoided, and the service life of the battery assembly is prolonged.
Optionally, the battery assembly further comprises a fuel gauge electrically connected to the positive electrode, the negative electrode, and the reference electrode of the three-electrode cell, and the method further comprises: acquiring state parameters of the three-electrode battery cell, wherein the state parameters comprise at least one of first voltage, positive electrode potential, negative electrode potential, charge state, impedance and capacity; and controlling the battery assembly to terminate charging and/or discharging through the control module under the condition that the state parameter meets a fifth preset condition.
In an embodiment of the present invention, the electricity meter is configured to obtain state parameters of the three-electrode electric core, where the state parameters include: the voltage control circuit comprises at least one of a first voltage, a positive electrode potential, a negative electrode potential, a charge state, impedance and capacity, wherein the first voltage is a cell voltage, the positive electrode potential is a voltage obtained by electrically connecting a reference electrode of a three-electrode cell with a positive electrode of the three-electrode cell, and the negative electrode potential is a voltage obtained by electrically connecting the reference electrode of the three-electrode cell with a negative electrode of the three-electrode cell. The state of charge is the ratio of the remaining charge of the three-electrode cell after a period of use to its capacity in a fully charged state. The impedance is a combination of internal resistance and reactance of the battery core, the capacity is electric quantity emitted by the battery core under a certain condition (discharge rate, temperature, termination voltage, etc.), namely, the capacity of the battery, after the three-electrode battery core is used for a period of time, the state of charge, the impedance and the capacity of the three-electrode battery core can be changed, and the state parameters are compared with preset state parameters stored in the fuel gauge to obtain the aging state of the three-electrode battery core 10. The preset state parameters comprise a first cell voltage, a first positive electrode potential, a first negative electrode potential, a first charge state, a first impedance, a first capacity of the three-electrode cell under the condition of non-use of the three-electrode cell, and a second cell voltage, a second positive electrode potential, a second negative electrode potential, a second charge state, a second impedance and a second capacity of the three-electrode cell under the condition of exhaustion.
In an embodiment of the present invention, the fifth preset condition is that at least one of the state parameters is the same as a corresponding parameter in the preset state parameters, and when the state parameters satisfy the fifth preset condition, the control module controls the battery assembly to terminate charging and/or terminate discharging.
As a specific example, when the state of charge of the three-electrode cell is the same as the first cell voltage in the preset state parameter, indicating that the charging of the three-electrode cell is completed, the control module controls the battery assembly to terminate the charging. As another specific example, when the state of charge of the three-electrode cell is the same as the second cell voltage in the preset state parameter, which indicates that the electric quantity of the three-electrode cell is exhausted, the control module controls the battery assembly to terminate the discharge.
As a specific example, when the state of charge of the three-electrode cell is the same as the first positive electrode potential in the preset state parameter, it indicates that the charging of the three-electrode cell is completed, and at this time, the control module controls the battery module to terminate the charging. As another specific example, when the state of charge of the three-electrode cell is the same as the second positive electrode potential in the preset state parameter, which indicates that the electric quantity of the three-electrode cell is exhausted, the control module controls the battery assembly to terminate discharging.
As a specific example, when the state of charge of the three-electrode cell is the same as the first negative electrode potential in the preset state parameter, indicating that the charging of the three-electrode cell is completed, the control module controls the battery assembly to terminate the charging. As another specific example, when the state of charge of the three-electrode cell is the same as the second negative electrode potential in the preset state parameter, which indicates that the electric quantity of the three-electrode cell is exhausted, the control module controls the battery assembly to terminate discharging.
As a specific example, when the state of charge of the three-electrode cell is the same as the first state of charge in the preset state parameters, it indicates that the charging of the three-electrode cell is completed, and at this time, the control module controls the battery assembly to terminate the charging. As another specific example, when the state of charge of the three-electrode cell is the same as the second state of charge in the preset state parameters, which indicates that the electric quantity of the three-electrode cell is exhausted, the control module controls the battery assembly to terminate discharging.
As another specific example, when the capacity of the three-electrode cell is the same as the first capacity in the preset state parameters, it indicates that the charging of the three-electrode cell is completed, and at this time, the control module controls the battery assembly to terminate the charging. As another specific example, when the capacity of the three-electrode cell is the same as the second capacity in the preset state parameters, which indicates that the electric quantity of the three-electrode cell is exhausted at this time, the control module controls the battery assembly to terminate discharging.
As another specific example, when the impedance of the three-electrode cell is the same as the first impedance in the preset state parameters, it indicates that the charging of the three-electrode cell is completed, and at this time, the control module controls the battery assembly to terminate the charging. As another specific example, when the capacity of the three-electrode cell is the same as the second impedance in the preset state parameter, which indicates that the electric quantity of the three-electrode cell is exhausted at this time, the control module controls the battery assembly to terminate discharging at this time.
Referring to fig. 7, a charging control system 600 according to an embodiment of the present invention is shown, applied to an electronic device, and includes:
the acquisition module 601: the device comprises a voltage acquisition unit, a voltage acquisition unit and a control unit, wherein the voltage acquisition unit is used for acquiring voltage parameters of the battery assembly under the condition that the battery assembly is in a charging state; the voltage parameters comprise a first voltage, a second voltage, a positive electrode potential of the three-electrode cell and a negative electrode potential of the three-electrode cell;
the adjusting module 602: the charging mode of the battery assembly is adjusted according to the voltage parameter;
the first voltage is a cell voltage, and the second voltage is a battery voltage (which is a voltage drop caused by the cell voltage plus the impedance of the protection plate during charging and discharging). The positive electrode potential of the three-electrode battery cell is voltage obtained by electrically connecting the reference electrode with the positive electrode of the three-electrode battery cell, and the negative electrode potential of the three-electrode battery cell is voltage obtained by electrically connecting the reference electrode with the negative electrode of the three-electrode battery cell.
Optionally, the adjusting module 602 includes:
the sending submodule is used for sending first control information to a power adapter of the electronic equipment through a control module of the electronic equipment under the condition that the voltage parameter meets a first preset condition;
and the control submodule is used for controlling the battery assembly to be charged in a constant-voltage charging mode by the power adapter according to the first control information.
Optionally, the adjusting module 602 further includes:
the first determining submodule is used for determining that the battery component is in a low-charge state under the condition that the voltage parameter meets a second preset condition, and controlling a power adapter of the electronic equipment to charge the battery component in a high-power charging mode through the control module;
the second determining submodule is used for determining that the battery component is in a high-charge state under the condition that the voltage parameter meets a third preset condition, and controlling a power adapter of the electronic equipment to charge the battery component in a low-power charging mode through the control module;
optionally, the battery assembly further includes an identity recognition unit, one end of the identity recognition unit is electrically connected to the control module, and the other end of the identity recognition unit is electrically connected to the three-electrode battery cell; the charge control system further includes:
the first acquisition module is used for acquiring the identity information of the battery pack through the identity recognition unit;
the first control module is used for controlling the power adapter to charge the battery assembly according to the highest output power charging mode through the control module under the condition that the identity information meets a fourth preset condition;
and the second control module is used for controlling the power adapter to charge the battery pack according to the lowest output power charging mode under the condition that the identity information does not meet the fourth preset condition.
Optionally, the battery assembly further includes a temperature unit electrically connected to the control module, and the charging control system further includes:
the second acquisition module is used for acquiring the temperature of the battery pack through the temperature unit;
and the third control module is used for reducing the discharging current of the battery assembly through the control module when the temperature of the battery assembly exceeds the preset temperature, or controlling the power adapter of the electronic equipment to reduce the charging current through the control module.
Optionally, the battery assembly further includes a fuel gauge, the fuel gauge may be electrically connected to a positive electrode of the three-electrode cell, may also be electrically connected to a negative electrode of the three-electrode cell, and may also be electrically connected to a reference electrode of the three-electrode cell, and the charge control device further includes:
the third acquiring module is used for acquiring state parameters of the three-electrode battery cell, wherein the state parameters comprise at least one of first voltage, positive electrode potential, negative electrode potential, state of charge, impedance and capacity;
and the fourth control module is used for controlling the battery assembly to terminate charging and/or terminate discharging through the control module under the condition that the state parameter meets a fifth preset condition.
FIG. 8 is a diagram illustrating a hardware configuration of an electronic device implementing various embodiments of the invention;
the electronic device 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, a power supply 711, and the like. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 8 does not constitute a limitation of the electronic device, and that the electronic device may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 710 is configured to obtain a voltage parameter of the battery assembly during a charging process of the battery assembly; the voltage parameters comprise the positive electrode voltage of the battery assembly, the positive electrode potential of the three-electrode battery cell, the negative electrode potential of the three-electrode battery cell and the grounding end voltage of the battery assembly; and judging the voltage state of the battery assembly according to the positive electrode potential, the negative electrode potential, the positive electrode voltage and the ground terminal voltage, and adjusting the charging mode according to the voltage state.
Compared with the battery used in the electronic device in the prior art, the battery assembly according to the embodiment of the invention introduces the reference electrode, the positive electrode potential of the three-electrode battery cell is the voltage of the positive electrode of the three-electrode battery cell relative to the reference electrode, the negative electrode potential of the three-electrode battery cell is the voltage of the negative electrode of the three-electrode battery cell relative to the reference electrode, and the monitoring unit can monitor the positive electrode potential and the negative electrode potential of the three-electrode battery cell in real time, so that the more accurate real use voltage of the three-electrode battery cell in the use process can be obtained in real time, the battery can be used more safely according to the voltage state, the condition that the battery assembly is used insufficiently or excessively in the use process is reduced, and the reliability and safety of the use of the battery assembly are improved, receiving and transmitting signals, specifically, receiving downlink data from a base station, and then processing the received downlink data in the processor 710; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.
The electronic device provides wireless broadband internet access to the user via the network module 702, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.
The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the electronic apparatus 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.
The input unit 704 is used to receive audio or video signals. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 701 in case of a phone call mode.
The electronic device 700 also includes at least one sensor 705, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 7061 and/or a backlight when the electronic device 700 is moved to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of an electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 706 is used to display information input by the user or information provided to the user. The display unit 606 may include a display panel 7061, and the display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED).
The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic device. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 710, receives a command from the processor 710, and executes the command. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. In particular, the other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 7071 may be overlaid on the display panel 7061, and when the touch panel 6071 detects a touch operation on or near the touch panel 7071, the touch operation is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although in fig. 8, the touch panel 7071 and the display panel 7061 are implemented as two separate components to implement the input and output functions of the electronic device, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the electronic device, which is not limited herein.
The interface unit 708 is an interface for connecting an external device to the electronic apparatus 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic apparatus 700 or may be used to transmit data between the electronic apparatus 700 and the external device.
The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 709 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 710 is a control center of the electronic device, connects various parts of the whole electronic device by using various interfaces and lines, performs various functions of the electronic device and processes data by running or executing software programs and/or modules stored in the memory 709 and calling data stored in the memory 709, thereby monitoring the whole electronic device. Processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.
The electronic device 700 may further include a power supply 711 (e.g., a battery) for providing power to various components, and preferably, the power supply 611 may be logically connected to the processor 710 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.
In addition, the electronic device 700 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides an electronic device, which includes a processor 710, a memory 709, and a computer program stored in the memory 709 and capable of running on the processor 710, where the computer program is executed by the processor 710 to implement each process of the above charging control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above charging control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-only memory (Read-Onl7 memory 7, ROM for short), a Random Access memory (Random Access memory 7, RAM for short), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (8)

1. A charging control method applied to an electronic device, wherein the electronic device comprises a battery pack, and the battery pack comprises: a three-electrode cell and a monitoring unit; the three-electrode battery cell comprises a positive electrode, a reference electrode and a negative electrode; the battery assembly further comprises a ground terminal electrically connected to the negative electrode; the monitoring unit comprises a first pin, a second pin and a third pin, the first pin, the second pin and the third pin are respectively and electrically connected with the anode, the reference pole and the cathode, and the monitoring unit further comprises an output end, and the output end is electrically connected with the control module;
the method comprises the following steps:
acquiring a voltage parameter of the battery assembly under the condition that the battery assembly is in a charging state; the voltage parameters comprise a first voltage, a second voltage, a positive electrode potential of the three-electrode cell and a negative electrode potential of the three-electrode cell;
under the condition that the voltage parameter meets a first preset condition, sending first control information to a power adapter of the electronic equipment through a control module of the electronic equipment;
the power adapter controls the battery assembly to charge in a constant voltage charging mode according to the first control information;
wherein the first voltage is a voltage of the three-electrode cell, and the second voltage is a voltage of the battery assembly;
the first preset condition is that the difference between the cell voltage and the positive electrode potential is smaller than a first threshold value, and the difference between the cell voltage and the negative electrode potential is larger than a second threshold value in the charging process.
2. The method of claim 1, wherein the battery assembly further comprises a current detection unit;
the current detection unit comprises a sampling resistor, one end of the current detection unit is electrically connected with the negative electrode, and the other end of the current detection unit is electrically connected with the third pin of the monitoring unit.
3. The method of claim 2, wherein the battery assembly further comprises an electricity meter;
one end of the electricity meter is electrically connected with the anode, and the other end of the electricity meter is electrically connected with the cathode.
4. The method of claim 1, wherein said adjusting the charging mode of the battery pack according to the voltage parameter comprises:
under the condition that the voltage parameter meets a second preset condition, determining that the battery assembly is in a low-charge state, and controlling a power adapter of the electronic equipment to charge the battery assembly according to a high-power charging mode through the control module;
and under the condition that the voltage parameter meets a third preset condition, determining that the battery assembly is in a high-charge state, and controlling a power adapter of the electronic equipment to charge the battery assembly in a low-power charging mode through the control module.
5. The method of claim 1, wherein the battery assembly further comprises an identification unit, one end of the identification unit is electrically connected with the control module, and the other end of the identification unit is electrically connected with the three-electrode cell;
prior to the step of obtaining a voltage parameter of the battery assembly, the method further comprises:
acquiring the identity information of the battery pack through the identity recognition unit;
under the condition that the identity information meets a fourth preset condition, the control module controls the power adapter to charge the battery assembly according to a highest output power mode;
and under the condition that the identity information does not meet the fourth preset condition, controlling the power adapter to charge the battery pack according to the lowest output power mode.
6. The method of claim 1, wherein the battery assembly further comprises a temperature unit electrically connected to the control module, the method comprising:
acquiring the temperature of the battery assembly through the temperature unit;
when the temperature of battery pack surpassed preset temperature, through control module group reduces battery pack's discharge current, perhaps, through control module group control electronic equipment's power adapter reduces charging current.
7. The method of claim 1, wherein the battery assembly further comprises an electricity meter electrically connected to a positive pole, a negative pole, or a reference pole of the three-electrode cell, the method further comprising:
acquiring state parameters of the three-electrode battery cell, wherein the state parameters comprise at least one of voltage, positive electrode potential, negative electrode potential, charge state, impedance and capacity of the three-electrode battery cell;
and controlling the battery assembly to terminate charging and/or discharging through the control module under the condition that the state parameter meets a fifth preset condition.
8. A charging control system, for use in an electronic device, the electronic device including a battery pack, the battery pack comprising: a three-electrode cell and a monitoring unit; the three-electrode battery cell comprises a positive electrode, a reference electrode and a negative electrode; the battery assembly further comprises a ground terminal electrically connected to the negative electrode; the monitoring unit comprises a first pin, a second pin and a third pin, the first pin, the second pin and the third pin are respectively and electrically connected with the anode, the reference pole and the cathode, and the monitoring unit further comprises an output end, and the output end is electrically connected with the control module; the control system includes:
an acquisition module: the device comprises a voltage acquisition unit, a voltage acquisition unit and a control unit, wherein the voltage acquisition unit is used for acquiring voltage parameters of the battery assembly under the condition that the battery assembly is in a charging state; the voltage parameters comprise a first voltage, a second voltage, a positive electrode potential of the three-electrode cell and a negative electrode potential of the three-electrode cell;
an adjusting module: the control module is used for sending first control information to a power adapter of the electronic equipment through the control module of the electronic equipment under the condition that the voltage parameter meets a first preset condition; the power adapter controls the battery assembly to charge in a constant voltage charging mode according to the first control information;
wherein the first voltage is a voltage of the three-electrode cell, and the second voltage is a voltage of the battery assembly;
the first preset condition is that the difference between the cell voltage and the positive electrode potential is smaller than a first threshold value, and the difference between the cell voltage and the negative electrode potential is larger than a second threshold value in the charging process.
CN201911261746.7A 2019-12-10 2019-12-10 Battery assembly, charging control method and system Active CN110957785B (en)

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