WO2010034210A1 - Compensateur de batteries - Google Patents

Compensateur de batteries Download PDF

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Publication number
WO2010034210A1
WO2010034210A1 PCT/CN2009/072567 CN2009072567W WO2010034210A1 WO 2010034210 A1 WO2010034210 A1 WO 2010034210A1 CN 2009072567 W CN2009072567 W CN 2009072567W WO 2010034210 A1 WO2010034210 A1 WO 2010034210A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
capacitor
switch unit
unit
field effect
Prior art date
Application number
PCT/CN2009/072567
Other languages
English (en)
Chinese (zh)
Inventor
何远强
Original Assignee
He Yuanqiang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by He Yuanqiang filed Critical He Yuanqiang
Publication of WO2010034210A1 publication Critical patent/WO2010034210A1/fr

Links

Classifications

    • 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
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M16/00—Structural combinations of different types of electrochemical generators
    • 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

Definitions

  • the present invention relates to the field of equalization devices, and in particular, to a battery equalization device.
  • the present application is based on a Chinese Utility Model Patent Application No. 200820200933.5, filed on Sep. 23, 2008, the content of which is hereby incorporated by reference. Background technique:
  • Batteries are typically used in series and in parallel to provide higher output voltages and greater electrical capacity to meet load drive requirements.
  • rechargeable batteries are widely used in various electronic products, even electric vehicles, because of their good price/performance ratio.
  • due to the limitation of the process conditions there is a certain difference between the single cells. After a plurality of charge and discharge cycles, a large voltage difference is generated between the batteries, so that the total effective capacity of the series battery pack becomes small. Affects battery pack performance and life.
  • An object of the present invention is to provide a battery equalization apparatus capable of realizing the balance of each battery in real time in view of the deficiencies of the prior art.
  • the utility model comprises a plurality of batteries connected in series, wherein the two batteries are connected with a power balance circuit capable of transferring the electric energy of the battery with a higher voltage to the battery with a lower voltage, so that the electric power of the two batteries is equalized, and the electric quantity is balanced.
  • a control drive circuit for controlling the driving power balance circuit is connected to the input end of the circuit.
  • the power balance circuit includes a first switch unit, a second switch unit, a third switch unit, a fourth switch unit, and a charge and discharge unit;
  • the first switch unit is bidirectionally connected to the positive pole of the battery B, and the first switch unit Bidirectional connection with the charging and discharging unit, the charging and discharging unit and the second switching unit are bidirectionally connected, the second switching unit is bidirectionally connected to the negative electrode of the battery B;
  • the third switching unit is bidirectionally connected with the positive electrode of the battery A, and the third switching unit and the charging
  • the discharge unit is bidirectionally connected, the charge and discharge unit is bidirectionally connected to the fourth switch unit, and the fourth switch unit is bidirectionally connected to the negative pole of the battery A;
  • the first switch unit, the second switch unit, the third switch unit, and the fourth switch unit The input terminals are all connected to the control drive circuit.
  • the first switching unit is composed of an N-channel field effect transistor, a P-channel field effect transistor, a triode, an insulated gate bipolar transistor (IGBT), a relay, or a combination thereof;
  • the second switching unit is by N a channel field effect transistor, a P-channel field effect transistor, a triode, an insulated gate bipolar power transistor, a relay or a combination thereof;
  • the third switching unit is an N-channel FET, a P-channel FET , a triode, an insulated gate bipolar power tube, a relay or a combination thereof;
  • the fourth switching unit is an N-channel FET, a P-channel FET, a triode, an insulated gate bipolar power tube One of or a combination of relays.
  • the charge and discharge unit is composed of a chargeable and dischargeable electrolytic capacitor, a tantalum capacitor, a pull capacitor, a non-polar capacitor or a battery.
  • the first switching unit is a P-channel FET QA1
  • the second switching unit is an N-channel FET QB1
  • the third switching unit is an N-channel FET QC1
  • the fourth switching unit is an N-channel FET.
  • QD1 the charge and discharge unit is capacitor C1; the source of QA1 is connected to the anode of battery B, the drain of QA1 is connected to the anode of capacitor C1, the cathode of capacitor C1 is connected to the source of QB1, and the drain of QB1 is connected to the battery.
  • the negative electrode of B is connected; the source of QC1 is connected to the positive electrode of battery A, the drain of QC1 is connected to the positive electrode of capacitor C1, the negative electrode of capacitor C1 is connected to the drain of QD1, and the source of QD1 is connected to the negative electrode of battery A.
  • the gates of the QA1, QB1, QC1, and QD1 are all connected to the control driving circuit.
  • the first switching unit, the second switching unit, the third switching unit, and the fourth switching unit are respectively N-channel FETs QA1, QB1, QC1, and QD1, and the charging and discharging unit is a capacitor CI;
  • the pole is connected to the anode of battery B, the source of QA1 is connected to the anode of capacitor C1, the cathode of capacitor C1 is connected to the source of QB1, the drain of QB1 is connected to the cathode of battery B, and the source of QC1 is connected to battery A.
  • the battery equalization device comprises a plurality of batteries connected in series, and the two batteries are connected with a battery capable of delivering a higher voltage battery to a battery having a lower voltage, so that the power of the two batteries is balanced.
  • a power balance circuit wherein the input end of the power balance circuit is connected with a control drive circuit for controlling the power balance circuit, and the battery balance circuit can charge the battery with a higher voltage when the battery is charged, discharged, or left. It is delivered to a battery with a lower voltage to equalize the power of the two batteries. Therefore, the present invention can equalize the power of each battery in real time, thereby improving the balance effect and reliability of the power between the batteries.
  • Figure 1 is a block diagram showing the structure of the present invention
  • FIG. 2 is a block diagram showing another structure of the present invention.
  • FIG. 3 is a block diagram showing the structure of the internal structure of the power balance circuit of the present invention.
  • FIG. 4 is a circuit schematic diagram of the first embodiment of the present invention.
  • FIG. 5 is a schematic diagram of driving waveforms of an output of a control driving circuit according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic circuit diagram of a second embodiment of the present invention.
  • FIG. 7 is a schematic diagram of driving waveforms of an output of a control driving circuit according to Embodiment 2 of the present invention.
  • Figure 8 is an application example 1 of the present invention.
  • Fig. 9 is a second application example of the present invention.
  • the first embodiment is shown in FIGS. 1 to 5, and includes a plurality of batteries 11 connected in series.
  • the two batteries 11 are connected with a power supply for the battery 11 having a higher voltage.
  • the power balance circuit 12 that equalizes the power of the two batteries 11 is connected to the control drive circuit 13 for controlling the drive power balance circuit 12 at the input end of the power balance circuit 12.
  • the power balance circuit 12 can supply the power of the battery 11 having a higher voltage to the battery 11 having a lower voltage, so that the power of the two batteries 11 is equalized.
  • the present invention can equalize the power of each battery 11 in real time, thereby improving the equalization effect and reliability of the electric power of each battery 11.
  • the power balance circuit 12 is connected between two adjacent batteries 11, since the potentials at the junctions of the two batteries 11 are the same, the structure is as shown in FIG.
  • the power balance circuit of the embodiment includes a first switch unit 121, a second switch unit 122, a third switch unit 123, a fourth switch unit 124, and a charge and discharge unit 125.
  • the first switch unit 121 is bidirectional to the positive pole of the battery B.
  • the first switch unit 121 is bidirectionally connected to the charge and discharge unit 125
  • the charge and discharge unit 125 is bidirectionally connected to the second switch unit 122
  • the second switch unit 122 is bidirectionally connected to the negative electrode of the battery B.
  • the third switch unit 123 and the battery are connected.
  • the positive pole of A is bidirectionally connected, the third switch unit 123 is bidirectionally connected to the charge and discharge unit 125, the charge and discharge unit 125 is bidirectionally connected to the fourth switch unit 124, and the fourth switch unit 124 is bidirectionally connected to the negative pole of the battery A;
  • Single The input ends of the element 121, the second switching unit 122, the third switching unit 123, and the fourth switching unit 124 are all connected to the control driving circuit.
  • the first switch unit 121 is composed of one of an N-channel field effect transistor, a P-channel field effect transistor, a triode, an insulated gate bipolar power transistor, and a combination thereof; and the second switch unit 122 Is composed of an N-channel FET, a P-channel FET, a triode, an insulated gate bipolar power transistor, a relay, or a combination thereof; the third switching unit 123 is an N-channel FET, P a channel field effect transistor, a triode, an insulated gate bipolar power tube, a relay or a combination thereof; the fourth switching unit 124 is an N-channel field effect transistor, a P-channel field effect transistor, a triode, and an insulated gate One of a bipolar power tube, a relay or a combination thereof; of course, the combination of different components, the combined polarity and the respective driving waveforms are different; the charging and discharging unit 125 is rechargeable and dischargeable Electrolytic capacitor, tantalum capacitor, farad capacitor, non-polar capacitor or battery.
  • the first switching unit 121 of the embodiment is a P-channel FET QA1, the second switching unit 122 is an N-channel FET QB1, the third switching unit 123 is an N-channel FET QC1, and the fourth switching unit 124 is N.
  • the channel field effect transistor QD1 the charge and discharge unit 125 is a capacitor C1; the source of the QA1 is connected to the anode of the battery B, the drain of the QA1 is connected to the anode of the capacitor C1, and the cathode of the capacitor C1 is connected to the source of the QB1, QB1
  • the drain of the battery is connected to the cathode of the battery B;
  • the source of the QC1 is connected to the anode of the battery A, the drain of the capacitor QC1 is connected to the anode of the capacitor C1, the cathode of the capacitor C1 is connected to the drain of the QD1, and the source of the QD1 is
  • the negative electrode of the battery A is connected; the gates of the
  • t0 to t4 are one clock cycle. At time t0 to t1, QA1 and QB1 are simultaneously turned on, and QC1 and QD1 are simultaneously turned off. At this time, if the voltage of the battery B is higher than the capacitance C1 When the voltage is high, battery B charges capacitor C1 through QA1 and QB1. If the voltage of capacitor C1 is higher than the voltage of battery B, capacitor C1 discharges battery B through QA1 and QB1; at time t2 to t3, QA1 and QB1 simultaneously Shutdown, QC1 and QD1 are turned on at the same time.
  • capacitor C1 will automatically discharge battery B until the voltage of battery B is equal to the capacitance of capacitor C1.
  • the voltage, such charge and discharge process, will automatically cycle until the voltage of battery B is equal to the voltage of battery A.
  • the control driving circuit 13 capable of generating driving waveforms as shown in FIGS. 3 and 4.
  • the control driving circuit 13 capable of achieving such a function is very simple and common.
  • the digital generation control circuit or the dedicated waveform generation control driving chip can directly drive the QA1, QB1, QC1, and QD1 of the power balancing circuit 12.
  • the circuit of the present invention has a simple structure and a low production cost.
  • the first switch unit 121, the second switch unit 122, the third switch unit 123, and the fourth embodiment are different from the first embodiment.
  • the switching unit 124 is an N-channel FET QA1, QB1, QC1, and QD1, respectively, and the charging and discharging unit 125 is a capacitor C1; the drain of the QA1 is connected to the anode of the battery B, and the source of the QA1 is connected to the anode of the capacitor C1.
  • the cathode of capacitor C1 is connected to the source of QB1, the drain of QB1 is connected to the cathode of battery B, the source of QC1 is connected to the anode of battery A, the drain of QC1 is connected to the anode of capacitor C1, and the cathode of capacitor C1 is connected.
  • the source of QD1 is connected to the negative terminal of battery A; the gates of QA1, QB1, QC1, QD1 are connected to the control driving circuit, and other structures and working principles are the same as in the first embodiment, so here No longer.
  • FIG. 8 is an application example 1 of the present invention, in which a power balance circuit is connected between two batteries connected in series, for example, a battery equalization circuit 1 is connected between the battery 1 and the battery 2 , and the battery 2 is connected A power balance circuit 2 is connected to the battery 3, that is, N-1 battery equalization circuits are connected to the N series connected batteries, so that the power of each battery can be equalized, and the power of the battery with a higher voltage can be equalized. Will automatically transfer to a lower voltage battery.
  • FIG. 9 is an application example 2 of the present invention, which is composed of a plurality of batteries connected in series to form a battery pack, and not only a power balance circuit is connected between the two batteries connected in series, but A power balance circuit is connected between the two battery packs, so that the balance of the power between the two battery packs can be improved.
  • a plurality of battery packs can be combined into a battery module in series, and a power balance circuit is connected between the two battery cells in series, between the two battery packs.
  • a power balance circuit is connected, and a power balance circuit can be connected between the two battery modules, so that the power balance between the two battery modules can be further improved.
  • the invention can balance the power of each battery in real time, thereby improving the balance effect and reliability of the power between the batteries, improving the service life of the battery pack, and saving energy.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne un compensateur de batteries comprenant une pluralité de batteries (11) montées en série, un répartiteur de charge électrique (12) monté entre les deux batteries (11), et un circuit de commande et de régulation (13) qui communique avec une borne d'entrée du répartiteur de charge électrique (12) et qui sert à commander et piloter le répartiteur de charge électrique (12). Le répartiteur de charge électrique (12) transporte vers la batterie (11) de moindre tension la charge électrique de la batterie (11) de tension supérieure de façon à équilibrer entre les deux batteries la charge électrique.
PCT/CN2009/072567 2008-09-23 2009-06-30 Compensateur de batteries WO2010034210A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200820200933.5 2008-09-23
CNU2008202009335U CN201298737Y (zh) 2008-09-23 2008-09-23 一种电池均衡装置

Publications (1)

Publication Number Publication Date
WO2010034210A1 true WO2010034210A1 (fr) 2010-04-01

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ID=41044723

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Application Number Title Priority Date Filing Date
PCT/CN2009/072567 WO2010034210A1 (fr) 2008-09-23 2009-06-30 Compensateur de batteries

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CN (1) CN201298737Y (fr)
WO (1) WO2010034210A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI409482B (zh) * 2010-08-10 2013-09-21 Lite On Clean Energy Technology Corp 電池等化器的檢測模組及檢測方法
CN108023389A (zh) * 2018-01-15 2018-05-11 深圳市飞碟动力科技有限公司 一种电池组动态均衡电路
CN109921485A (zh) * 2019-03-13 2019-06-21 西南交通大学 一种集中-分散并联型开关电容均衡电路及其控制方法
CN112332476A (zh) * 2020-10-20 2021-02-05 西安工程大学 一种串联电池组中单体电池极性自动切换电路

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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JP5537913B2 (ja) * 2009-11-30 2014-07-02 三洋電機株式会社 均等化装置、それを備えたバッテリシステムおよび電動車両
CN104659870B (zh) * 2014-10-29 2017-02-15 无锡中星微电子有限公司 电池平衡管理电路及系统
CN105932346B (zh) * 2016-06-28 2019-05-03 南京莱迪新能源科技有限公司 一种模块化梯次利用储能电池控制方法
WO2018068243A1 (fr) * 2016-10-12 2018-04-19 广东欧珀移动通信有限公司 Terminal mobile
CN107785961B (zh) * 2017-10-27 2021-11-02 努比亚技术有限公司 一种串联电池充电方法、移动终端及计算机可读介质
CN109995115B (zh) * 2019-04-17 2024-02-02 惠州拓邦电气技术有限公司 一种双电池包充电电路、供电装置及电子设备
CN114123395B (zh) * 2021-11-15 2024-05-31 北京中鼎启航能源科技有限公司 一种自耦合式双向恒流电源

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CN2582184Y (zh) * 2002-11-28 2003-10-22 台湾雷天能源科技股份有限公司 应用于串联大容量锂电池组的能量均衡装置
US20060103351A1 (en) * 2004-11-18 2006-05-18 Denso Corporation Battery pack manager
JP2007267454A (ja) * 2006-03-27 2007-10-11 Mitsubishi Fuso Truck & Bus Corp 車両用バッテリ装置
JP2008117573A (ja) * 2006-11-01 2008-05-22 Japan Aerospace Exploration Agency 直列／並列切り替え式均等化機能付き蓄電セルモジュール
CN101192755A (zh) * 2006-11-27 2008-06-04 比亚迪股份有限公司 一种动力电池组电压均衡管理装置及其管理方法

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Publication number Priority date Publication date Assignee Title
CN2582184Y (zh) * 2002-11-28 2003-10-22 台湾雷天能源科技股份有限公司 应用于串联大容量锂电池组的能量均衡装置
US20060103351A1 (en) * 2004-11-18 2006-05-18 Denso Corporation Battery pack manager
JP2007267454A (ja) * 2006-03-27 2007-10-11 Mitsubishi Fuso Truck & Bus Corp 車両用バッテリ装置
JP2008117573A (ja) * 2006-11-01 2008-05-22 Japan Aerospace Exploration Agency 直列／並列切り替え式均等化機能付き蓄電セルモジュール
CN101192755A (zh) * 2006-11-27 2008-06-04 比亚迪股份有限公司 一种动力电池组电压均衡管理装置及其管理方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI409482B (zh) * 2010-08-10 2013-09-21 Lite On Clean Energy Technology Corp 電池等化器的檢測模組及檢測方法
CN108023389A (zh) * 2018-01-15 2018-05-11 深圳市飞碟动力科技有限公司 一种电池组动态均衡电路
CN109921485A (zh) * 2019-03-13 2019-06-21 西南交通大学 一种集中-分散并联型开关电容均衡电路及其控制方法
CN109921485B (zh) * 2019-03-13 2023-10-27 西南交通大学 一种集中-分散并联型开关电容均衡电路及其控制方法
CN112332476A (zh) * 2020-10-20 2021-02-05 西安工程大学 一种串联电池组中单体电池极性自动切换电路

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