CN113991767A - Charging and discharging control method and device, battery and electronic equipment - Google Patents

Charging and discharging control method and device, battery and electronic equipment Download PDF

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Publication number
CN113991767A
CN113991767A CN202111141836.XA CN202111141836A CN113991767A CN 113991767 A CN113991767 A CN 113991767A CN 202111141836 A CN202111141836 A CN 202111141836A CN 113991767 A CN113991767 A CN 113991767A
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CN
China
Prior art keywords
mode
module
battery
charging
voltage
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Pending
Application number
CN202111141836.XA
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Chinese (zh)
Inventor
柏春
曾燕
杨绪坤
潘敏杰
张辉
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Hefei Lianbao Information Technology Co Ltd
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Hefei Lianbao Information Technology Co Ltd
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Priority to CN202111141836.XA priority Critical patent/CN113991767A/en
Publication of CN113991767A publication Critical patent/CN113991767A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • 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
    • 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
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
    • 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
    • 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • 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 invention discloses a charge-discharge control method, a charge-discharge control device, a battery and electronic equipment, wherein the method comprises the following steps: receiving system state information of the electronic equipment; and under the condition that the system state information shows that the system state of the electronic equipment is switched from a working state to a system off state, switching the charging and discharging mode of a battery of the electronic equipment from a first mode to a second mode by controlling the on-off of the module switch, wherein the charging voltage of the first mode is greater than the charging voltage of the second mode, and the discharging voltage of the first mode is greater than the discharging voltage of the second mode. The invention can realize on-off control of the module switch according to different working states of the system, improve the system efficiency in the closed state of the system, reduce the power consumption and meet the standard requirement.

Description

Charging and discharging control method and device, battery and electronic equipment
Technical Field
The invention relates to the technical field of power electronics, in particular to a charge and discharge control method and device, a battery and electronic equipment
Background
Technologies for charging and discharging and normally supplying power to electronic devices by using a power adapter are widely available, for example: notebook computer power adapter. And the system has the problem of too high power consumption in the DC S5 state (all devices including the power supply are turned off), and cannot meet the corresponding standard requirements. Currently, a mode of turning off a power consuming device or bringing an EC (Embedded Controller) into a deep sleep state is mainly adopted. However, the problem that the standard requirements cannot be met after the power consumption device is turned off still exists. If the EC enters deep sleep, the real-time detection function cannot be realized, and the EC needs to be awakened periodically.
Disclosure of Invention
The embodiment of the invention provides a charge and discharge control method, a battery, a device and electronic equipment.
According to a first aspect of the present invention, there is provided a charge and discharge control method including: receiving system state information of the electronic equipment; and under the condition that the system state information shows that the system state of the electronic equipment is switched from the working state to the closed state, switching the charging and discharging mode of a battery of the electronic equipment from a first mode to a second mode through on-off control of the module switch, wherein the charging voltage of the first mode is greater than the charging voltage of the second mode, and the discharging voltage of the first mode is greater than the discharging voltage of the second mode.
According to an embodiment of the present invention, when the system state information shows that the system state of the electronic device is in the operating state, whether voltages of modules in a battery of the electronic device are balanced is detected; acquiring charging information of the electronic equipment under the condition that the voltage unbalance of each module in a battery of the electronic equipment is detected; and switching the battery charging and discharging mode of the electronic equipment to a third mode or a fourth mode by controlling the on-off of the module switch according to the charging information.
According to an embodiment of the present invention, the charging voltage of the third mode is smaller than the charging voltage of the first mode and larger than the charging voltage of the second mode; the discharge voltage of the third mode is less than the discharge voltage of the first mode and greater than the discharge voltage of the second mode; the charging voltage of the fourth mode is equal to the charging voltage of the second mode; the discharge voltage of the fourth mode is equal to the discharge voltage of the third mode.
According to an embodiment of the present invention, switching the battery charge/discharge mode of the electronic device to the third mode or the fourth mode by controlling on/off of the module switch according to the charging information includes: if the battery of the electronic equipment has external power supply currently, switching the battery charging and discharging mode of the electronic equipment to a fourth mode through on-off control of the module switch; and if the battery of the electronic equipment does not have external power supply currently, switching the battery charge-discharge mode of the electronic equipment to a third mode through on-off control of the module switch.
According to the second aspect of the present invention, there is also provided a battery applied to an electronic device, the battery including a charging unit, a micro control unit, a battery module, and a module switch, the battery module including: the battery module comprises a first module, a second module, a third module and a fourth module which are sequentially connected in series from the negative electrode to the positive electrode of the battery, wherein the module switches comprise a first switch, a second switch, a third switch and a fourth switch; the first switch is arranged between the first module and the second module; the first module is connected with the first switch in series and then connected with the third switch in parallel; after the second module, the third module and the fourth module are connected with the first switch in series, the second module, the third module and the fourth module are connected with the fourth switch and the second switch which are connected together in series in parallel; a lead is led out between the second switch and the fourth switch and is connected with the charging unit, and the lead is used for independently charging the first module for use under the condition that the second module, the third module and the fourth module are discharged; the micro control unit is connected with the first module, the second module, the third module and the fourth module, and can detect the voltage at two ends of any one of the first module, the second module, the third module and the fourth module; and the adjustment of the charging voltage and the discharging voltage of the battery is realized by controlling the on-off of the module switch.
According to a third aspect of the present invention, there is also provided a charge and discharge control device applied to the battery, the device including: the charging unit receiving module is used for receiving system state information of the electronic equipment; the charging and discharging control module is used for switching a charging and discharging mode of a battery of the electronic equipment from a first mode to a second mode through a switch under the condition that the system state information shows that the system state of the electronic equipment is switched from an operating state to an off state, wherein the charging voltage of the first mode is greater than the charging voltage of the second mode, and the discharging voltage of the first mode is greater than the discharging voltage of the second mode.
According to an embodiment of the present invention, the balance detection module is configured to detect whether voltages of modules in a battery of the electronic device are balanced when the system state information shows that a system state of the electronic device is in a working state; the charging information acquisition module is used for acquiring charging information of the electronic equipment under the condition that the voltage of each module in a battery of the electronic equipment is detected to be unbalanced; and the mode switching module is used for switching the battery charging and discharging mode of the electronic equipment to a third mode or a fourth mode through on-off control of the module switch according to the charging information.
According to an embodiment of the present invention, the charging voltage of the third mode is smaller than the charging voltage of the first mode and larger than the charging voltage of the second mode; the discharge voltage of the third mode is less than the discharge voltage of the first mode and greater than the discharge voltage of the second mode; the charging voltage of the fourth mode is equal to the charging voltage of the second mode; the discharge voltage of the fourth mode is equal to the discharge voltage of the third mode.
According to an embodiment of the present invention, the mode switching module includes: the first switching submodule is used for switching a battery charging and discharging mode of the electronic equipment to a fourth mode if the battery of the electronic equipment has external power supply currently; and the second switching submodule is used for switching the battery charging and discharging mode of the electronic equipment to a third mode if the battery of the electronic equipment does not have external power supply currently.
According to the fourth aspect of the present invention, there is also provided an electronic device applied to the battery. According to a fifth aspect of the present invention, there is also provided a computer-readable storage medium comprising a set of computer-executable instructions, which when executed, is configured to perform any of the charge and discharge control methods described above.
According to the method, the device, the battery and the electronic equipment for controlling charging and discharging, the four modules are arranged in the battery circuit, the corresponding switches are arranged among the modules, and the charging and discharging voltage is controlled by controlling the on-off of the switches of the modules when the system is switched from the working state to the off state, so that under the condition that the battery is ensured to normally supply power to the electronic equipment, the power consumption of the system is effectively reduced, the system efficiency is improved, the standby time is prolonged, the corresponding standard is reached, the user experience is improved, more devices can be allowed under the same standard, and more functions are realized.
It is to be understood that the teachings of the present invention need not achieve all of the above-described benefits, but rather that specific embodiments may achieve specific technical results, and that other embodiments of the present invention may achieve benefits not mentioned above.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
FIG. 1 shows a schematic circuit diagram of a battery according to an embodiment of the invention;
fig. 2 is a schematic diagram illustrating an implementation flow of a charging and discharging control method according to an embodiment of the present invention;
FIG. 3 is a circuit state diagram illustrating a first mode of a charge and discharge control method according to an embodiment of the present invention;
FIG. 4 is a circuit state diagram illustrating a second mode of a charge and discharge control method according to an embodiment of the present invention;
FIG. 5 is a circuit state diagram illustrating a third mode of a charge and discharge control method according to an embodiment of the present invention;
FIG. 6 is a circuit state diagram illustrating a fourth mode of a charge and discharge control method according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating an implementation method of a specific application example of the charge and discharge control method according to the embodiment of the present invention;
fig. 8 is a schematic diagram showing a charge and discharge control apparatus according to an embodiment of the present invention.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments. It is understood that these embodiments are given only to enable those skilled in the art to better understand and to implement the present invention, and do not limit the scope of the present invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The technical solution of the present invention is further elaborated below with reference to the drawings and the specific embodiments.
Fig. 1 shows a schematic circuit diagram of a battery according to an embodiment of the present invention.
The charge and discharge control method of the embodiment of the invention is applied to a battery, the battery is applied to an electronic device, a circuit schematic diagram of the battery can be shown in fig. 1, the battery comprises a charging unit 101, a micro control unit 102, a battery module 103 and a module switch 104, the battery module 103 comprises: a first module 1031, a second module 1032, a third module 1033, and a fourth module 1034 connected in series in sequence from the negative electrode to the positive electrode of the battery, the module switches including a first switch S1, a second switch S2, a third switch S3, and a fourth switch S4; the first switch is arranged between the first module 1031 and the second module 1032; the first module 1031 is connected in series with the first switch S1 and then connected in parallel with the third switch S3; after the second module 1032, the second module 1033 and the fourth module 1034 are connected in series with the first switch S1, they are connected in parallel with the lines of the fourth switch S4 and the second switch S2 which are connected in series; a lead is led out between the second switch S2 and the fourth switch S4 to be connected with the charging unit 101, so as to independently charge the first module 1031 for use when the second module 1032, the second module 1033 and the fourth module 1034 discharge; the micro control unit 102 is connected to the first module 1031, the second module 1032, the second module 1033, and the fourth module 1034, and the micro control unit 102 can detect a voltage across any one of the first module 1031, the second module 1032, the second module 1033, and the fourth module 1034; the charging voltage and the discharging voltage of the battery are adjusted by controlling the on-off of the module switch.
In an embodiment of the present invention, the battery circuit further includes a voltage regulator 104, and the voltage regulator 104 may be an LDO (low dropout regulator), and is used for regulating voltage during discharging.
In this embodiment of the present invention, the electronic device may be a notebook computer, a tablet computer, a Personal Digital Assistant (PDA), or the like.
In an embodiment of the present invention, the charging unit 101 may include: the power plug is connected with the adapter and then connected with the Charger, the adapter is not limited herein, the Charger may be an HPB Charger, and the Charger is used for independently charging the first module 1031 for use when the second module 1032, the second module 1033 and the fourth module 1034 discharge, and it should be noted that the charging unit 101 is not controlled by the present invention, and all of the same functions are within the protection scope of the present invention.
In an embodiment of the present invention, the charging unit 101 may further include high speed switches 1012 and 1013 and on- off switches 1013 and 1014. The high speed switches 1012 and 1013 may be used to adjust the duty cycle during battery charging to achieve voltage regulation, and the pass switches 1013 and 1014 may be used to reconfigure the circuit.
In an embodiment of the present invention, the mcu 102 may be a Gauge IC (battery management chip) for detecting voltages at two ends of any one of the first module 1031, the second module 1032, the second module 1033, and the fourth module 1034, so that the voltages of the modules in the battery can be controlled in real time, and it should be noted that the charging unit 101 is not specifically limited in the present invention, and the mcu 102 only needs to control the battery according to the embodiment of the present invention, and the mcus 102 having the same function are all within the protection scope of the present invention.
FIG. 2 is a schematic diagram illustrating an implementation flow of a charging and discharging control method according to an embodiment of the present invention;
referring to fig. 2, the charge and discharge control method according to the embodiment of the present invention at least includes the following operation flows: operation 201, receiving system state information of an electronic device; in operation 202, in a case that the system state information shows that the system state of the electronic device is switched from the operating state to the off state, a charge-discharge mode of a battery of the electronic device is switched from a first mode to a second mode by on-off control of the module switch, wherein a charge voltage of the first mode is greater than a charge voltage of the second mode, and a discharge voltage of the first mode is greater than a discharge voltage of the second mode.
In operation 201, system state information of an electronic device is received.
In operation 202, in a case where the system state information shows that the system state of the electronic device is switched from the operating state to the off state, a charge and discharge mode of a battery of the electronic device is switched from a first mode to a second mode by on-off control of the module switch, a charge voltage of the first mode is greater than a charge voltage of the second mode, and a discharge voltage of the first mode is greater than a discharge voltage of the second mode.
For example, when all devices in the power off state are turned off and the system state of the electronic device is switched from the operating state to the off state, in order to reduce the system power consumption in the off state, the charging and discharging modes of the battery of the electronic device are switched from a first mode to a second mode by controlling the on and off of the module switch, the charging voltage of the first mode is greater than the charging voltage of the second mode, and the discharging voltage of the first mode is greater than the discharging voltage of the second mode.
When the system state is changed from the working state to the off state, in the first mode, the switch S2 and the switch S4 are turned on, the switch S1 is turned off, the second mode is switched, the charging and discharging voltage is reduced, and therefore the power consumption of the system in the DC S5 state is reduced.
Fig. 3 is a circuit state diagram of a first mode of a charge and discharge control method according to an embodiment of the present invention, and referring to fig. 3, in an embodiment of the present invention, a first mode switch state of the present invention is: switch S1 is on, switch S2, switch S3 and switch S4 are off; the first, second, third and fourth modules of the battery are connected to the circuit by turning on the switch S1 to provide charging and discharging voltages.
FIG. 4 is a circuit state diagram illustrating a second mode of a charge and discharge control method according to an embodiment of the present invention; referring to fig. 4, the second mode switch states of the present invention are: the switch S2 and the switch S4 turn on the switch S1 and turn off the switch S3, and the switch S1 and the switch S4 are controlled to be turned on to enable only the first battery module to be connected to the circuit to provide charging and discharging voltage.
Referring to fig. 3 to 4, the voltage of each battery module is 4.4V as an example.
In the first mode, the switch S1 is on, and the switches S2, S3, and S4 are in the off state. The first module, the second module, the third module and the fourth module of the battery are all connected into the circuit by the conducting switch S1. At this time, the four battery modules are all connected into the circuit for charging and discharging, and the charging and discharging voltage is provided by the four battery modules at the same time and is 17.6V.
In the second mode, the switch S2 and the switch S4 are turned on, and the switch S1 and the switch S3 are turned off. The switch S1 and the switch S4 are controlled to be turned on to enable the first battery module to be connected into the circuit to provide the charging and discharging voltage, and the charging and discharging voltage is provided by the first battery module and is 4.4V.
It should be noted that the voltages of the battery modules may be the same, or the voltages of some of the battery modules are the same, or the voltages of the battery modules are different, which may be determined by combining actual application scenarios. The voltage of the battery module may also be determined in combination with an actual application scenario, and the above is only an example that the voltage of each battery module is 4.4V, and the charging and discharging states of the battery of the electronic device in the first mode and the second mode are exemplarily described, which does not form a limitation to the technical solution of the present invention.
In an embodiment of the present invention, system state information of the electronic device is further received, and when the system state information shows that the system state of the electronic device is in the working state, whether voltages of modules in a battery of the electronic device are balanced is detected. And under the condition that the voltage unbalance of each module in the battery of the electronic equipment is detected, further acquiring the charging information of the electronic equipment, and switching the battery charging and discharging mode of the electronic equipment to a third mode or a fourth mode through on-off control of the module switch according to the charging information.
In an embodiment of the present invention, if the battery of the electronic device currently has external power supply, the battery charging/discharging mode of the electronic device is switched to the fourth mode. And if the battery of the electronic equipment does not have external power supply currently, switching the battery charging and discharging mode of the electronic equipment to a third mode. The third mode and the fourth mode are correspondingly accessed by judging whether the external power supply is accessed, so that the power consumption of the battery is effectively reduced, and the charging and discharging efficiency of the battery is improved.
In an embodiment of the present invention, the charging voltage of the third mode is smaller than the charging voltage of the first mode and larger than the charging voltage of the second mode; the discharge voltage of the third mode is less than the discharge voltage of the first mode and greater than the discharge voltage of the second mode; the charging voltage of the fourth mode is equal to the charging voltage of the second mode; the discharge voltage of the fourth mode is equal to the discharge voltage of the third mode.
For example, when the system is in a working state, in order to reduce unnecessary power consumption and improve system efficiency, the voltage of each module needs to be detected. When the voltage of each module is unbalanced, corresponding adjustment is needed to balance the voltage of each module, and whether an external power supply is connected or not is detected under the condition that the voltage of each module is unbalanced. If an external power supply is connected, the control circuit is switched from the first mode to the third mode, so that the charging and discharging voltage is reduced, and at the moment, the charging and discharging voltage is smaller than the charging and discharging voltage in the first mode in the normal working state and larger than the charging and discharging voltage of the system in the closed state, so that the corresponding system is maintained to work. If an external power supply is connected, the first mode is switched to the fourth mode, and after the external power supply is provided, the charging voltage of the system in the closed state in the second mode can be reduced, unnecessary voltage input is avoided, the discharging voltage is correspondingly reduced to the voltage of the third mode, and the corresponding work of the system is maintained under the condition of avoiding unnecessary power consumption.
Fig. 5 is a circuit state diagram of a third mode of a charge and discharge control method according to an embodiment of the present invention, and referring to fig. 5, in an embodiment of the present invention, a third mode switch state is: the switch S3 is turned on, the switch S1, the switch S2 and the switch S4 are turned off, and the second battery module, the third battery module and the fourth battery module are connected to the circuit to perform charging and discharging by controlling only the switch S3 to be turned on.
Fig. 6 is a circuit state diagram of a fourth mode of the charge and discharge control method according to an embodiment of the present invention, referring to fig. six, where the fourth mode switch states are: the switch S3 and the switch S4 are turned on, the switch S1 and the switch S2 are turned off, the charging unit is used for charging the first battery module solely by controlling the on of the switch S3 and the switch S4, and the circuit is connected to the second module, the third module and the fourth module for discharging.
Referring to fig. 5 to 6, the voltage of each battery module is 4.4V as an example.
In the third mode, the switch S3 is turned on, and the switches S1, S2, and S4 are turned off. The second battery module, the third battery module and the fourth battery module are connected to the circuit to charge and discharge by controlling the conduction of only the switch S3, and the charging and discharging voltage is provided by the second battery module, the third battery module and the fourth battery module and is 13.2V.
In the fourth mode, the switch S3 and the switch S4 are turned on, and the switch S1 and the switch S2 are turned off. The charging unit charges the first module of the battery by controlling the conduction of the switch S3 and the switch S4, and the charging voltage is 4.4V. The circuit is connected to the second module, the third module and the fourth module for discharging, and the discharging voltage is 13.2V.
It should be noted that the description of the third mode and the fourth mode is merely an example in which the voltage of the battery module is 4.4V, and the battery module voltage is not limited as in the first mode and the second mode.
Fig. 7 is a flowchart illustrating an implementation method of a specific application example of the charge and discharge control method according to the embodiment of the present invention.
Referring to fig. 7, the charging and discharging control method according to an embodiment of the present invention includes the following steps:
in operation 701, it is detected whether the system is in a shutdown state in the first mode.
In operation 702, if the system is in the off state, the first mode is switched to the second mode by controlling the on/off of the group switch.
In operation 703, if the system is in the working state, it is detected whether the voltages of the battery modules are balanced.
In operation 704, if the voltages of the battery modules are not balanced, whether an external power is connected is detected.
In operation 705, if no external power is applied, the first mode is switched to the third mode by controlling the on/off of the group switch.
In operation 706, if an external power source is connected, the first mode is switched to the fourth mode by controlling the on/off of the group switch.
Therefore, the four groups of battery modules are arranged, the corresponding switches are arranged among the modules, the working state of the system is detected at any time, the switching of each mode is carried out through the on-off control of the switches of the modules, the efficiency of the system in the closed state is improved while the battery charges the electronic equipment, the power consumption is reduced, the standby time of the system in the closed state is prolonged, the standard requirement is met, the user experience is improved, and more equipment can be accessed under the same standard to realize more functions.
Specifically, when the 4 battery modules are all 4.4V, the charging and discharging control method of the present invention can increase the system efficiency of the electronic device in the system off state by 4 times, and the corresponding battery power consumption can be reduced to 1/4 before the battery charging and discharging control method of the present invention is used.
Further, based on the above charge and discharge control method, an embodiment of the present invention further provides a charge and discharge control apparatus 80, referring to fig. 8, including: a status information receiving module 801, configured to receive system status information of an electronic device; and a charge and discharge control module 802, configured to switch a charge and discharge mode of a battery of the electronic device from a first mode to a second mode by applying a pair of switches when the system state information shows that the system state of the electronic device is switched from the operating state to the off state, where a charge voltage of the first mode is greater than a charge voltage of the second mode, and a discharge voltage of the first mode is greater than a discharge voltage of the second mode.
In an embodiment of the present invention, referring to the drawings, the charge and discharge control device further includes a charge and discharge device: the balance detection module is used for detecting whether the voltage of each module in the battery of the electronic equipment is balanced or not under the condition that the system state information shows that the system state of the electronic equipment is in a working state; the charging information acquisition module is used for acquiring the charging information of the electronic equipment under the condition of detecting that the voltage of each module in the battery of the electronic equipment is unbalanced; and the mode switching module is used for switching the battery charging and discharging mode of the electronic equipment to a third mode or a fourth mode through on-off control of the module switch according to the charging information.
In an embodiment of the present invention, the charging voltage of the third mode is smaller than the charging voltage of the first mode and larger than the charging voltage of the second mode; the discharge voltage of the third mode is less than the discharge voltage of the first mode and greater than the discharge voltage of the second mode; the charging voltage of the fourth mode is equal to the charging voltage of the second mode; the discharge voltage of the fourth mode is equal to the discharge voltage of the third mode.
In an embodiment of the present invention, the mode switching module includes: the first switching submodule is used for switching the battery charging and discharging mode of the electronic equipment to a fourth mode if the battery of the electronic equipment has external power supply currently; and the second switching submodule is used for switching the battery charging and discharging mode of the electronic equipment to a third mode if the battery of the electronic equipment does not have external power supply currently.
Further, based on the above charging and discharging control method, an embodiment of the present invention further provides an electronic device including the above battery.
Similarly, based on the above charging and discharging control method, an embodiment of the present invention further provides a computer-readable storage medium, where a program is stored, and when the program is executed by a processor, the processor is caused to perform at least the following operation steps: operation 201, receiving system state information of an electronic device; in operation 202, in a case that the system state information shows that the system state of the electronic device is switched from the operating state to the off state, a charge-discharge mode of a battery of the electronic device is switched from a first mode to a second mode by on-off control of the module switch, a charge voltage of the first mode is greater than a charge voltage of the second mode, and a discharge voltage of the first mode is greater than a discharge voltage of the second mode.
Here, it should be noted that: the above description of the embodiment of the charge and discharge control electronic device is similar to the description of the embodiment of the charge and discharge control method, and has similar beneficial effects to the embodiment of the charge and discharge control method, and therefore, the description thereof is omitted. For technical details that are not disclosed in the embodiment of the display device for configuration information of the present invention, please refer to the description of the aforementioned method for controlling charging and discharging of the present invention for understanding, and therefore, for brevity, will not be described again.
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.
In the several 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 device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or 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.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several 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 methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A charge and discharge control method is applied to a battery of electronic equipment, the battery comprises a battery module and a module switch, and the method comprises the following steps:
receiving system state information of the electronic equipment;
and under the condition that the system state information shows that the system state of the electronic equipment is switched from the working state to the closed state, switching the charging and discharging mode of a battery of the electronic equipment from a first mode to a second mode through on-off control of the module switch, wherein the charging voltage of the first mode is greater than the charging voltage of the second mode, and the discharging voltage of the first mode is greater than the discharging voltage of the second mode.
2. The method of claim 1, further comprising:
under the condition that the system state information shows that the system state of the electronic equipment is in a working state, detecting whether the voltage of each module in a battery of the electronic equipment is balanced;
acquiring charging information of the electronic equipment under the condition that the voltage unbalance of each module in a battery of the electronic equipment is detected;
and switching the battery charging and discharging mode of the electronic equipment to a third mode or a fourth mode by controlling the on-off of the module switch according to the charging information.
3. The method of claim 2,
the charging voltage of the third mode is less than the charging voltage of the first mode and greater than the charging voltage of the second mode;
the discharge voltage of the third mode is less than the discharge voltage of the first mode and greater than the discharge voltage of the second mode;
the charging voltage of the fourth mode is equal to the charging voltage of the second mode;
the discharge voltage of the fourth mode is equal to the discharge voltage of the third mode.
4. The method according to claim 3, wherein switching the battery charging and discharging mode of the electronic device to a third mode or a fourth mode by on-off control of the module switch according to the charging information comprises:
if the battery of the electronic equipment has external power supply currently, switching the battery charging and discharging mode of the electronic equipment to a fourth mode through on-off control of the module switch;
and if the battery of the electronic equipment does not have external power supply currently, switching the battery charge-discharge mode of the electronic equipment to a third mode through on-off control of the module switch.
5. The utility model provides a battery, its characterized in that is applied to electronic equipment, the battery includes charging unit, little the control unit, battery module and module switch, the battery module includes: the battery module comprises a first module, a second module, a third module and a fourth module which are sequentially connected in series from the negative electrode to the positive electrode of the battery, wherein the module switches comprise a first switch, a second switch, a third switch and a fourth switch;
the first switch is arranged between the first module and the second module;
the first module is connected with the first switch in series and then connected with the third switch in parallel;
after the second module, the third module and the fourth module are connected with the first switch in series, the second module, the third module and the fourth module are connected with the fourth switch and the second switch which are connected together in series in parallel;
a lead is led out between the second switch and the fourth switch and is connected with the charging unit, and the lead is used for independently charging the first module for use under the condition that the second module, the third module and the fourth module are discharged;
the micro control unit is connected with the first module, the second module, the third module and the fourth module, and can detect the voltage at two ends of any one of the first module, the second module, the third module and the fourth module;
and the adjustment of the charging voltage and the discharging voltage of the battery is realized by controlling the on-off of the module switch.
6. A charge and discharge control device applied to the battery according to claim 5, comprising:
the state information receiving module is used for receiving system state information of the electronic equipment;
the charging and discharging control module is used for switching a charging and discharging mode of a battery of the electronic equipment from a first mode to a second mode through a switch under the condition that the system state information shows that the system state of the electronic equipment is switched from an operating state to an off state, wherein the charging voltage of the first mode is greater than the charging voltage of the second mode, and the discharging voltage of the first mode is greater than the discharging voltage of the second mode.
7. The apparatus of claim 6, further comprising:
the balance detection module is used for detecting whether the voltage of each module in the battery of the electronic equipment is balanced or not under the condition that the system state information shows that the system state of the electronic equipment is in a working state;
the charging information acquisition module is used for acquiring charging information of the electronic equipment under the condition that the voltage of each module in a battery of the electronic equipment is detected to be unbalanced;
and the mode switching module is used for switching the battery charging and discharging mode of the electronic equipment to a third mode or a fourth mode through on-off control of the module switch according to the charging information.
8. The apparatus of claim 6,
the charging voltage of the third mode is less than the charging voltage of the first mode and greater than the charging voltage of the second mode;
the discharge voltage of the third mode is less than the discharge voltage of the first mode and greater than the discharge voltage of the second mode;
the charging voltage of the fourth mode is equal to the charging voltage of the second mode;
the discharge voltage of the fourth mode is equal to the discharge voltage of the third mode.
9. The apparatus of claim 6, wherein the mode switching module comprises:
the first switching submodule is used for switching a battery charging and discharging mode of the electronic equipment to a fourth mode if the battery of the electronic equipment has external power supply currently;
and the second switching submodule is used for switching the battery charging and discharging mode of the electronic equipment to a third mode if the battery of the electronic equipment does not have external power supply currently.
10. An electronic device comprising the battery of claim 5.
CN202111141836.XA 2021-09-28 2021-09-28 Charging and discharging control method and device, battery and electronic equipment Pending CN113991767A (en)

Priority Applications (1)

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CN202111141836.XA CN113991767A (en) 2021-09-28 2021-09-28 Charging and discharging control method and device, battery and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111141836.XA CN113991767A (en) 2021-09-28 2021-09-28 Charging and discharging control method and device, battery and electronic equipment

Publications (1)

Publication Number Publication Date
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Country Link
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