WO2016090763A1 - Batterie de dispositif de terminal et procédé de régulation de sa charge et de sa décharge - Google Patents

Batterie de dispositif de terminal et procédé de régulation de sa charge et de sa décharge Download PDF

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Publication number
WO2016090763A1
WO2016090763A1 PCT/CN2015/074759 CN2015074759W WO2016090763A1 WO 2016090763 A1 WO2016090763 A1 WO 2016090763A1 CN 2015074759 W CN2015074759 W CN 2015074759W WO 2016090763 A1 WO2016090763 A1 WO 2016090763A1
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WIPO (PCT)
Prior art keywords
battery
array unit
terminal
charging
switch
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Application number
PCT/CN2015/074759
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English (en)
Chinese (zh)
Inventor
宁金星
马彦青
曲廷
王建成
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中兴通讯股份有限公司
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Publication of WO2016090763A1 publication Critical patent/WO2016090763A1/fr

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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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a terminal battery and a charging and discharging control method thereof.
  • Batteries are widely used in people's daily life, ranging from mobile terminals such as electronic toys and mobile phones to electric vehicles and radar stations. In the process of using the battery, people always hope that the battery capacity is large and the charging time is short. However, the battery with a relatively large capacity in the prior art has a long time for a single charge (from the exhaustion of the battery to the full charge); the battery with a short charging time has The capacity is small and cannot meet the user's usage requirements.
  • the prior art uses a high-voltage charger to charge the terminal battery.
  • the battery needs to use a high-voltage battery, and at the same time, the corresponding circuit needs to be added, and the circuit is high.
  • the influence of the voltage is easily damaged, resulting in high battery cost and short service life.
  • the abnormal charging cutoff occurs, and the battery power cannot be fully charged.
  • the main purpose of the embodiments of the present invention is to solve the technical problem that the prior art is capable of realizing short-time charging of a battery, and has a high cost, a short service life, and a battery power cannot be fully charged.
  • a terminal battery provided by an embodiment of the present invention includes:
  • the battery array unit comprising at least two batteries
  • An array control unit configured to control all of the batteries in the battery array unit to be electrically connected in parallel when the battery array unit is in a charging state; and when the battery array is single When the cell is in a non-charging state, all of the cells in the battery array unit are controlled to be electrically connected in series.
  • the array control unit is configured to electrically connect all the batteries in the battery array unit in parallel according to a charging voltage input by the charging power source when the battery array unit is in a charging state.
  • the terminal battery supplies power to the terminal by the charging power source when the battery array unit is in a charging state.
  • the array control unit is further configured to switch all the batteries in the battery array unit to be electrically connected in series when the amount of power supplied by the charging power source to the terminal is less than the amount of power required for the terminal to operate, so that the The charging power source simultaneously supplies power to the terminal with the battery array unit to meet the power required for the terminal to operate.
  • the battery array unit specifically includes: a first battery, a second battery, a first switch, a second switch, and a third switch;
  • the positive poles of the first battery are respectively connected to the first end of the first switch and the first end of the second switch, and the negative poles of the first battery are respectively connected to the first end of the third switch, and Ground connection; a positive pole of the second battery is respectively connected to a second end of the first switch and a voltage input/output terminal, and a negative pole of the second battery and a second end of the second switch respectively The second end of the third switch is connected.
  • the array control unit is configured to control the first switch and the third switch to be in a closed state when the battery array unit is in a charging state, the second switch is in an off state; and when the battery array unit is in a non-charging state At the same time, the first switch and the third switch are controlled to be in an off state, and the second switch is in a closed state.
  • an embodiment of the present invention further provides a method for controlling charging and discharging of a terminal battery, the terminal battery comprising: a battery array unit, the battery array unit including at least two batteries; and charging and discharging control of the terminal battery
  • the steps of the method include:
  • the method for controlling charging and discharging of the terminal battery, when the battery array unit is in a charging state, controlling all the batteries in the battery array unit to be electrically connected in parallel includes:
  • the terminal battery charging and discharging control method wherein when the battery array unit is in a charging state, the charging power source supplies power to the terminal.
  • the method for controlling charging and discharging of the terminal battery further includes:
  • the battery array unit specifically includes: a first battery, a second battery, a first switch, a second switch, and a third switch;
  • the positive poles of the first battery are respectively connected to the first end of the first switch and the first end of the second switch, and the negative poles of the first battery are respectively connected to the first end of the third switch, and Ground connection; a positive pole of the second battery is respectively connected to a second end of the first switch and a voltage input/output terminal, and a negative pole of the second battery and a second end of the second switch respectively The second end of the third switch is connected.
  • controlling all the batteries in the battery array unit to be electrically connected in parallel is specifically:
  • controlling all the batteries in the battery array unit to be electrically connected in series is specifically:
  • the first switch and the third switch are controlled to be in an off state, and the second switch is in a closed state.
  • the terminal battery and the charging and discharging control method thereof provided by the embodiments of the present invention, when the battery array unit is in a charging state, control all the batteries in the battery array unit to be electrically connected in parallel; when the battery array unit is in a non- In the charging state, controlling the manner in which all the batteries in the battery array unit are electrically connected in series reduces the charging input voltage of the battery array unit.
  • the charging voltage of the battery array unit rises slowly, and thus the charging is performed. The impedance rise rate is slow and does not occur.
  • the charging impedance is too large, and the charging abnormality is cut off, and the phenomenon that the charging cannot be fully charged can shorten the charging time of the terminal battery (improving the charging speed of the terminal battery) while ensuring the high terminal battery capacity.
  • the terminal battery of the invention does not need to adopt a high-voltage battery core, and the charging circuit of the battery array unit is not damaged by the influence of high-voltage charging, and the terminal battery has lower manufacturing cost and longer service life.
  • FIG. 1 is a schematic diagram of functional modules of an embodiment of a terminal battery of the present invention.
  • FIG. 2 is a schematic circuit diagram of a battery array unit of FIG. 1;
  • Fig. 3 is a flow chart showing an embodiment of a method for controlling charge and discharge of a terminal battery of the present invention.
  • FIG. 1 is a schematic diagram of functional modules of an embodiment of a terminal battery of the present invention.
  • the terminal battery 100 includes a battery array unit 110 and an array control unit 120.
  • the battery array unit 110 includes at least two batteries.
  • the array control unit 120 is configured to control all the batteries in the battery array unit 110 to be electrically connected in parallel when the battery array unit 110 is in a charging state; and to control the battery array unit 110 when the battery array unit 110 is in a non-charging state. All of the batteries inside are electrically connected in series.
  • the array control unit 120 is specifically configured to electrically connect all the batteries in the battery array unit 110 in parallel according to a charging voltage input by the charging power source when the battery array unit 110 is in a charging state. That is, in the embodiment, after the charging power source of the charger is connected to the terminal, the charger is electrically connected to the array control unit 120 of the terminal battery 100. At this time, the charger inputs a voltage signal to the array control unit 120, and the battery array unit 120 According to the input voltage signal of the charger (5V voltage signal), all the batteries in the battery array unit 110 are electrically connected in a parallel manner.
  • a buck voltage conversion circuit is disposed inside the terminal; after the charger is connected to the terminal, the voltage input terminal of the buck voltage conversion circuit and the charger are The voltage input terminal is electrically connected, and the voltage output end of the buck voltage conversion circuit is electrically connected to the battery display unit 110, so that the high voltage input by the charger to the buck voltage conversion circuit during the charging process is converted to a low voltage by the buck voltage conversion circuit, and then A low voltage is input to the battery array unit 110 from the voltage output terminal of the buck voltage conversion circuit.
  • the charging voltage of the battery array unit 110 when the battery array unit 110 is charged, by electrically connecting all the batteries in the battery array unit 110 in parallel, the charging voltage of the battery array unit 110 can be reduced, and after the charging voltage of the battery array unit 110 is lowered.
  • the charging time increases, the charging voltage of the battery array unit 110 rises slowly, and thus the charging impedance of the battery array unit 110 The rising speed is slow, and the battery array unit 110 does not appear. Therefore, the charging impedance is too large, and the charging abnormality is cut off, and the charging cannot be fully charged.
  • the charging voltage of the battery array unit 110 since the charging voltage of the battery array unit 110 is low, the charging circuit of the battery array unit 110 is not damaged by the influence of the charging voltage.
  • the non-charging state of the battery array unit 110 in this embodiment includes: the battery array unit 110 discharge state, the battery array unit 110 does not discharge and the power supply state (terminal shutdown state), that is, the array control unit 120 is no longer in the charger.
  • the battery array unit 110 discharge state the battery array unit 110 does not discharge
  • the power supply state terminal shutdown state
  • the array control unit 120 is no longer in the charger.
  • all the batteries in the battery array unit are converted from the parallel electrical connection to the electrical connection in series, and all the batteries are maintained in series connection until the charger is It inputs the voltage signal again.
  • the battery array unit 110 when the battery array unit 110 is discharged (the battery array unit 110 is powered by the terminal), by electrically connecting all the batteries in the battery array unit 110 in series, the discharge voltage of the battery array unit 110 can be raised. To meet the needs of the terminal's normal power consumption.
  • FIG. 2 is a schematic diagram showing the circuit structure of the battery array unit of FIG. 1.
  • FIG. 2 is an example of a series connection and a parallel connection of the battery array unit in the embodiment of the present invention.
  • the battery array unit 110 in the present example includes two batteries, specifically including: a first battery BAT1, a second battery BAT2, a first switch K1, a second switch K2, and a third switch K3.
  • the positive poles of the first battery BAT1 are respectively connected to the first end 1 of the first switch K1 and the first end 1 of the second switch K2, and the negative poles of the first battery BAT1 and the third switch respectively a first end 1 of K3 and a ground connection; a positive pole of the second battery BAT2 is respectively connected to a second end 2 of the first switch K1 and a voltage input/output terminal, and a negative pole of the second battery BAT2 is respectively The second end 2 of the second switch K2 and the second end 2 of the third switch K3 are connected.
  • the voltage input/output terminal is: when the terminal battery is in a charging state, it is a voltage input terminal, and when the terminal battery is in a discharging state, it is a voltage output terminal.
  • the array control unit 120 is specifically configured to control the first switch K1 and the third switch K3 to be in a closed state when the battery array unit 110 is in a charging state, and the second switch K2 is in an off state, that is, the first battery at this time.
  • the BAT1 and the second battery BAT2 are electrically connected in parallel; and when the battery array unit 110 is in the non-charging state, the first switch K1 and the third switch K3 are controlled to be in an off state, and the second switch K2 is in a closed state, that is, The first battery BAT1 and the second battery BAT2 are electrically connected in series.
  • the present invention proposes another embodiment of the terminal battery.
  • the present embodiment is improved on the basis of the above embodiment.
  • the improvement is that when the battery array unit 110 is in the charging state, the charging power source supplies power to the terminal.
  • the array control unit 120 is further configured to switch all the batteries in the battery array unit 110 to be electrically connected in series when the amount of power supplied by the charging power source to the terminal is less than the amount of power required for the terminal to operate, so that the charging is performed.
  • the power supply and the battery array unit 110 simultaneously supply power to the terminal to meet the power required for the terminal to operate.
  • the array control unit 120 switches all the batteries in the battery array unit 110 from the parallel electrical connection mode to the series electrical connection mode. At this time, the charging power source no longer charges the battery array unit 110, only supplies power to the terminal, and the battery array unit 110 continues to flow for the terminal.
  • the terminal battery 100 embodiment provided by the present invention controls all the batteries in the battery array unit 110 to be electrically connected in parallel when the battery array unit 110 is in a charging state; when the battery array unit 110 is in a non-charging state
  • the method of controlling all the batteries in the battery array unit 110 to be electrically connected in series reduces the charging input voltage of the battery array unit 110.
  • the charging voltage of the battery array unit 110 rises slowly, and thus the charging is performed.
  • the impedance rise rate is slow and does not occur. Therefore, the charging impedance is too large, and the charging abnormality is cut off, and the charging cannot be fully charged.
  • the charging time of the terminal battery 100 can be shortened under the premise of ensuring the high capacity of the terminal battery 100 (increasing the charging of the terminal battery 100). speed).
  • the terminal battery 100 of the present invention does not need to use a high-voltage battery cell, and the charging circuit of the battery array unit 110 is not damaged by the high-voltage charging, and the terminal battery 100 has a lower manufacturing cost and a longer service life. .
  • FIG. 3 is a flow chart of an embodiment of a method for controlling charge and discharge of a terminal battery according to the present invention.
  • the method for controlling charging and discharging of the terminal battery includes:
  • Step S10 when the battery array unit 110 is in the charging state, all the batteries in the battery array unit 110 are controlled to be electrically connected in parallel.
  • the terminal battery 100 described in this embodiment includes the battery array unit 110 and the array control unit 120.
  • the battery display unit 110 includes at least two batteries.
  • the step S10 is specifically: when the battery array unit 110 is in the charging state, the battery in the battery array unit 110 is electrically connected in parallel according to the charging voltage input by the charging power source. That is, in the embodiment, after the charging power source of the charger is connected to the terminal, the charger is electrically connected to the array control unit 120 of the terminal battery 100. At this time, the charger inputs a voltage signal to the array control unit 120, and the battery array unit 120 According to the input voltage signal of the charger (such as a 5V voltage signal), all the batteries in the battery array unit 110 are electrically connected in parallel.
  • the input voltage signal of the charger such as a 5V voltage signal
  • a buck voltage conversion circuit is disposed inside the terminal; after the charger is connected to the terminal, the voltage input terminal of the buck voltage conversion circuit and the charger are The voltage input terminal is electrically connected, and the voltage output end of the buck voltage conversion circuit is electrically connected to the battery display unit 110, so that the high voltage input by the charger to the buck voltage conversion circuit during the charging process is converted to a low voltage by the buck voltage conversion circuit, and then A low voltage is input to the battery array unit 110 from the voltage output terminal of the buck voltage conversion circuit.
  • the charging voltage of the battery array unit 110 when the battery array unit 110 is charged, by electrically connecting all the batteries in the battery array unit 110 in parallel, the charging voltage of the battery array unit 110 can be reduced, and after the charging voltage of the battery array unit 110 is lowered, As the charging time increases, the charging voltage of the battery array unit 110 rises slowly, and thus the charging impedance of the battery array unit 110 rises slowly, and the battery array unit 110 does not appear, so the charging impedance is too large and the charging is different. Often closed, but not fully charged. At the same time, since the charging voltage of the battery array unit 110 is low, the charging circuit of the battery array unit 110 is not damaged by the influence of the charging voltage.
  • Step S20 when the battery array unit 110 is in the non-charging state, all the batteries in the battery array unit 110 are controlled to be electrically connected in series.
  • the non-charging state of the battery array unit 110 in this embodiment includes: the battery array unit 110 discharge state, the battery array unit 110 does not discharge and the power supply state (terminal shutdown state), that is, the array control unit 120 is no longer in the charger.
  • the battery array unit 110 discharge state the battery array unit 110 does not discharge
  • the power supply state terminal shutdown state
  • the array control unit 120 is no longer in the charger.
  • all the batteries in the battery array unit are converted from the parallel electrical connection to the electrical connection in series, and all the batteries are maintained in series connection until the charger is It inputs the voltage signal again.
  • the battery array unit 110 when the battery array unit 110 is discharged (the battery array unit 110 is powered by the terminal), by electrically connecting all the batteries in the battery array unit 110 in series, the discharge voltage of the battery array unit 110 can be raised. To meet the needs of the terminal's normal power consumption.
  • the battery array unit 110 in the present example includes two batteries, specifically including: a first battery BAT1, a second battery BAT2, a first switch K1, a second switch K2, and a third switch K3.
  • the positive poles of the first battery BAT1 are respectively connected to the first end 1 of the first switch K1 and the first end 1 of the second switch K2, and the negative poles of the first battery BAT1 and the third switch respectively a first end 1 of K3 and a ground connection;
  • a positive pole of the second battery BAT2 is respectively connected to a second end 2 of the first switch K1 and a voltage input/output terminal, and a negative pole of the second battery BAT2 is respectively The second end 2 of the second switch K2 and the second end 2 of the third switch K3 are connected.
  • the voltage input/output terminal is: when the terminal battery is in a charging state, it is a voltage input terminal, and when the terminal battery is in a discharging state, it is a voltage output terminal.
  • the step S10 is specifically: when the battery array unit 110 is in the charging state, the first switch K1 and the third switch K3 are controlled to be in a closed state, and the second switch K2 is in an off state, that is, the first battery BAT1 and the second The battery BAT2 is electrically connected in parallel.
  • the step S20 is specifically as: when the battery array When the unit 110 is in the non-charging state, the first switch K1 and the third switch K3 are controlled to be in an off state, and the second switch K2 is in a closed state, that is, the first battery BAT1 and the second battery BAT2 are electrically connected in series.
  • the present invention provides another embodiment of the control method for charging and discharging the terminal battery.
  • the embodiment is improved on the basis of the above embodiment.
  • the improvement is that when the battery array unit 110 is in the charging state, the charging power source supplies power to the terminal. And when the amount of power supplied by the charging power source to the terminal is less than the amount of power required for the terminal to operate, all the batteries in the switching battery array unit 110 are electrically connected in series so that the charging power source and the battery array unit simultaneously The terminal is powered to meet the power required by the terminal. That is, when the amount of power supplied by the charging power source to the terminal is less than the amount of power required for the terminal to operate, the array control unit 120 switches all the batteries in the battery array unit 110 from the parallel electrical connection mode to the series electrical connection mode. At this time, the charging power source no longer charges the battery array unit 110, only supplies power to the terminal, and the battery array unit continues to flow for the terminal.
  • the embodiment of the method for controlling charging and discharging of a terminal battery controls all the batteries in the battery array unit 110 to be electrically connected in parallel when the battery array unit 110 is in a charging state; when the battery array unit is at 110 In the non-charging state, controlling the charging of all the cells in the battery array unit 110 in series, the charging input voltage of the battery array unit 110 is lowered, and the charging voltage of the battery array unit 110 rises during the charging process. Slowly, the charging impedance rises slowly, and does not occur. Therefore, the charging impedance is too large, and the charging abnormality is cut off, and the charging cannot be fully charged.
  • the charging time of the terminal battery 100 can be shortened under the premise of ensuring the high capacity of the terminal battery 100 (improving the terminal) The charging speed of the battery).
  • the terminal battery 100 of the present invention does not need to use a high-voltage battery cell, and the charging circuit of the battery array unit 110 is not damaged by the high-voltage charging, and the terminal battery 100 has a lower manufacturing cost and a longer service life. .
  • the above terminal battery embodiment and the method for controlling the charging and discharging of the terminal battery may also adopt a boost circuit instead of the array control unit 120, and the boost circuit does not need a charger.
  • the connection mode of all the batteries in the battery array unit 120 can be switched by inputting a voltage signal thereto, but when the boost circuit is used, the boost circuit needs to be always on.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the above integration
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage medium includes: a removable storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
  • the embodiment of the invention discloses a terminal battery and a charging and discharging control method thereof.
  • the battery array unit When the battery array unit is in a charging state, all the batteries in the battery array unit are controlled to be electrically connected in parallel; when the battery array unit is in In the non-charging state, controlling the manner in which all the batteries in the battery array unit are electrically connected in series reduces the charging input voltage of the battery array unit, and during the charging process, the charging voltage of the battery array unit rises slowly, thus The charging impedance rises slowly and does not occur. Therefore, the charging impedance is too large, and the charging abnormality is cut off, and the charging cannot be fully charged.
  • the charging time of the terminal battery can be shortened while ensuring the high terminal battery capacity.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne une batterie (100) de dispositif de terminal et un procédé de régulation de sa charge et de sa décharge, ladite batterie (100) de dispositif de terminal comportant: une unité (110) de réseau de batterie, comportant elle-même au moins deux batteries; une unité (120) de commande de réseau, utilisée pour commander la connexion électrique en parallèle de toutes les batteries de l'unité (110) de réseau de batterie lorsque ladite unité est en mode de charge, et pour commander la connexion électrique en série de toutes les batteries de l'unité (110) de réseau de batterie lorsque ladite unité n'est pas en mode de charge.
PCT/CN2015/074759 2014-12-09 2015-03-20 Batterie de dispositif de terminal et procédé de régulation de sa charge et de sa décharge WO2016090763A1 (fr)

Applications Claiming Priority (2)

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CN201410750924.3A CN105743146A (zh) 2014-12-09 2014-12-09 终端电池及其充放电的控制方法
CN201410750924.3 2014-12-09

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WO2016090763A1 true WO2016090763A1 (fr) 2016-06-16

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PCT/CN2015/079520 WO2016090852A1 (fr) 2014-12-09 2015-05-21 Batterie de dispositif terminal et son procédé de commande de charge et de décharge

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CN106130134A (zh) * 2016-08-19 2016-11-16 维沃移动通信有限公司 一种充电电路和移动终端
CN106130134B (zh) * 2016-08-19 2019-06-07 维沃移动通信有限公司 一种充电电路和移动终端

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