CN106385088A - Battery voltage balancing device, system and method - Google Patents

Battery voltage balancing device, system and method Download PDF

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Publication number
CN106385088A
CN106385088A CN201611051477.8A CN201611051477A CN106385088A CN 106385088 A CN106385088 A CN 106385088A CN 201611051477 A CN201611051477 A CN 201611051477A CN 106385088 A CN106385088 A CN 106385088A
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CN
China
Prior art keywords
voltage
cell
unit
processing unit
converter unit
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201611051477.8A
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Chinese (zh)
Inventor
张�林
陈柚钢
胡国平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Yaxun Power Technology Co Ltd
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Chongqing Yaxun Power Technology Co Ltd
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
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Priority to CN201611051477.8A priority Critical patent/CN106385088A/en
Publication of CN106385088A publication Critical patent/CN106385088A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014Circuits for equalisation of charge between batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • H01M10/441Methods for charging or discharging for several batteries or cells simultaneously or sequentially
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014Circuits for equalisation of charge between batteries
    • H02J7/0019Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068Battery or charger load switching, e.g. concurrent charging and load supply
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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

Abstract

The invention provides a battery voltage balancing device, system and method. The battery voltage balancing device comprises a processing unit, a battery pack and a plurality of transforming units, wherein the battery pack includes a plurality of individual cells which are electrically connected in series. Each individual cell is connected with a transforming unit at both ends, and the transforming units are used for collecting the voltage of the individual cells. The processing unit is electrically connected with the transforming units and calculates an equalization voltage based on the voltage collected by each transforming unit. The processing unit controls the operation state of the transforming units by the equalization voltage and the collected voltage so that the voltage of each individual cell equals to the equalization voltage. In this way, the voltage of each individual cell is balanced, the normal use of the overall serially-connected battery pack is ensured, and the service lifetime of the overall serially-connected battery pack is extended.

Description

Voltage balance of battery device, system and method
Technical field
The present invention relates to battery charging field, in particular to a kind of voltage balance of battery device, system and method.
Background technology
With the development of New Energy Industry, multiple cell tandem compounds can be become series battery, be Related product It is powered, enable the battery of all series connection to be simultaneously filled with electricity and emptying electricity, under such conditions, the utilization ratio of battery is High.
However, due to the restriction of manufacturing process, when cell series connection uses in groups, it is poor that each cell exists Different, being susceptible to individual monomers over-charging of battery with crossing and put phenomenon, leading to the voltage of each cell inconsistent, thus affecting whole Body series battery normally uses, and shortens the service life of overall series battery.
Content of the invention
In order to overcome above-mentioned deficiency of the prior art, the first object of the present invention is to provide a kind of voltage balance of battery Device, it can equalize the voltage of each cell it is ensured that the normal use of overall series battery, extends overall series electrical The service life of pond group.
The second object of the present invention is to provide a kind of voltage balance of battery system, including above-mentioned voltage balance of battery dress Put.
The third object of the present invention is to provide a kind of voltage balance of battery method, is applied to above-mentioned voltage balance of battery system System.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that:
A kind of voltage balance of battery device, described device includes processing unit, set of cells and multiple converter unit;
Described set of cells includes multiple cells, and multiple described cells are electrically connected with series;
Each cell two ends is connected with converter unit described in, and described converter unit is used for gathering described cell Voltage;
Described processing unit is electrically connected with described converter unit, and described processing unit is adopted according to each described converter unit The voltage of collection, is calculated an equalizing voltage, and described processing unit is controlled by the voltage of described equalizing voltage and described collection The working condition of described converter unit, so that the voltage of each described cell is equal with described equalizing voltage.
In preferred embodiments of the present invention, computation subunit that described processing unit includes being electrically connected with each other, Judgment sub-unit, receiving subelement and transmission subelement;
Described receiving subelement receives the voltage of each described cell that each described converter unit collects;
Described computation subunit calculates described equalizing voltage according to the voltage of the described cell of each receiving;
The voltage of each described cell is compared by described judgment sub-unit with described equalizing voltage;
Described transmission subelement is according to the voltage of each described cell and the comparative result of described equalizing voltage to every The corresponding described converter unit of individual described cell issues voltage balancing control instruction.
In preferred embodiments of the present invention, described converter unit includes voltage acquisition subelement and voltage-regulation is single Unit;
Described voltage acquisition subelement gathers the voltage of described cell, and the voltage by the described cell of collection It is sent to described processing unit processes;
Described voltage-regulation subelement, after receiving described voltage balancing control instruction, adjusts the electricity of described cell Pressure, so that the voltage of described cell is equal with described equalizing voltage.
In preferred embodiments of the present invention, described voltage acquisition subelement is according to prefixed time interval to described monomer electricity The voltage in pond is acquired.
In preferred embodiments of the present invention, described voltage-regulation subelement includes:Two-way selecting switch, described two-way choosing Select switch Zhong mono- tunnel to be connected with supply unit, another road in described two-way selecting switch is connected with load;Described voltage is adjusted Knot unit, after receiving described voltage balancing control instruction, gates to described two-way selecting switch Zhong mono- tunnel.
In preferred embodiments of the present invention, described supply unit is charger, and described load is resistance.
In preferred embodiments of the present invention, described two-way selecting switch is a single-pole double-throw switch (SPDT).
In preferred embodiments of the present invention, described converter unit is connected by CAN with described processing unit.
A kind of voltage balance of battery system, described voltage balance of battery system includes the described cell voltage of any of the above-described Bascule.
A kind of voltage balance of battery method, described voltage balance of battery method is applied to the described battery of above-mentioned any one Voltage balancing system, methods described includes:
Described converter unit gathers the voltage of each described cell;
The voltage of each described cell gathering is sent to described processing unit by described converter unit;
Described processing unit carries out being calculated described equalizing voltage to the voltage of each described cell receiving;
Described processing unit issues control instruction according to the voltage of described equalizing voltage and described cell;
Described converter unit is controlled to the voltage of described cell after receiving described control instruction, so that often The voltage of individual described cell is equal with equalizing voltage.
In terms of existing technologies, the present invention provide voltage balance of battery device, system and method, by with each The converter unit that cell two ends connect, to gather the voltage of described cell.Described converter unit processes single again with one Unit is electrically connected with, and described processing unit, according to the voltage of each described converter unit collection, is calculated an equalizing voltage.Described Processing unit controls the working condition of described converter unit by the voltage of described equalizing voltage and described collection, so that each institute The voltage stating cell is equal with equalizing voltage.The normal use of overall series battery is ensured with this, extends overall series connection The service life of set of cells.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the brief configuration connection figure of voltage balance of battery device provided in an embodiment of the present invention.
Fig. 2 is the subelement block diagram of processing unit provided in an embodiment of the present invention.
Fig. 3 is the subelement block diagram of converter unit provided in an embodiment of the present invention.
Fig. 4 is the two-way selecting switch connection figure of voltage-regulation subelement provided in an embodiment of the present invention.
Fig. 5 is the flow chart of voltage balance of battery method provided in an embodiment of the present invention.
Icon:100- voltage balance of battery device;110- processing unit;111- receiving subelement;113- computation subunit; 115- judgment sub-unit;117- sends subelement;120- converter unit;130- set of cells;132- cell;121- voltage is adopted Collection subelement;123- voltage-regulation subelement;1230- two-way selecting switch;200- supply unit;400-CAN bus;300- bears Carry.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is The a part of embodiment of the present invention, rather than whole embodiments.The present invention generally described and illustrated in accompanying drawing herein is implemented The assembly of example can be arranged with various different configurations and design.
Therefore, below the detailed description of the embodiments of the invention providing in the accompanying drawings is not intended to limit claimed The scope of the present invention, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, this area is common The every other embodiment that technical staff is obtained under the premise of not making creative work, broadly falls into the model of present invention protection Enclose.
It should be noted that:Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then do not need it to be defined further and explains in subsequent accompanying drawing.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ", The orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, or should Orientation or position relationship that invention product is usually put when using, are for only for ease of the description present invention and simplify description, and not It is instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore not It is understood that as limitation of the present invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage Solve as indicating or implying relative importance.
In describing the invention in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or one Body ground connects;Can be to be mechanically connected or electrically connect;Can be joined directly together it is also possible to by intermediary indirect It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with concrete condition understanding State term concrete meaning in the present invention.
Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.In the case of not conflicting, following Feature in embodiment and embodiment can be mutually combined.
Refer to Fig. 1, Fig. 1 is the brief configuration connection figure of voltage balance of battery device 100 provided in an embodiment of the present invention. The voltage balance of battery device 100 that the present invention provides, including processing unit 110, set of cells 130 and multiple converter unit 120.Institute State set of cells 130 and include multiple cells 132, multiple described cells 132 are electrically connected with series.
In the present embodiment, the positive and negative electrode two ends of each cell 132 are all connected with a converter unit 120.Described Converter unit 120 is used for gathering the voltage of described cell 132, and electric to described monomer according to the instruction of processing unit 110 The voltage in pond 132 is adjusted.
Specifically, described cell 132 is rechargeable power battery, can adopt, but be not limited to, lithium ion battery, Nickel-cadmium cell, Ni-MH battery etc..
In the present embodiment, each converter unit 120 is all electrically connected with processing unit 110.Described processing unit 110 According to the voltage of the described cell 132 of described converter unit 120 collection, it is calculated an equalizing voltage.Described processing unit 110 control the working condition of described converter unit 120 by described cell 132 voltage of described equalizing voltage and collection, So that the voltage of each described cell 132 is equal with described equalizing voltage.
Specifically, due to cell 132 manufacture and use environment diversity, cell 132 through repeatedly filling, After discharge cycles, cell 132 diversity shows the trend being gradually increased.In charging process, easily have Cell 132 voltage is high, the low situation of some cell 132 voltage, and the magnitude of voltage height of cell 132 differs and easily leads Cause the monomer charging of the set of cells 130 of series connection unbalanced, directly the service life and performance of set of cells 130 is impacted.? In the present embodiment, the calculated described equalizing voltage of processing unit 110 is each monomer electricity of each converter unit 120 collection The average voltage in pond 132.Each described converter unit 120 is using described equalizing voltage as reference voltage to each cell 132 are adjusted, so that the voltage of each described cell 132 is equal with described equalizing voltage.Avoid producing due to battery The monomer charging of group 130 is unbalanced, and shortens the service life of set of cells 130 and the situation reducing set of cells 130 serviceability.
Referring to Fig. 1, described converter unit 120 is connected by CAN 400 with described processing unit 110.Described Processing unit 110 is managed by CAN 400 and controls each described converter unit 120.
Specifically, CAN 400 is the abbreviation of controller local area network (Controller Area Network, CAN), It is to be developed by research and develop and to produce the famous German BOSCH company of automobile electronics, and eventually become international standard (ISO 11898), it is one of most widely used fieldbus in the world.Due to existing the advantages of its high-performance, high reliability, real-time It is widely used to industrial automation, various control equipment, the vehicles, Medical Instruments and building, environmental Kuznets Curves etc. numerous Department.It is integrated with the physical layer data link layer functionality of CAN protocol in CAN 400 communication interface, can complete pairwise communications number According to framing processing, including position filling, the item such as data block coding, cyclic redundancy check, priority discrimination work.CAN 400 Employ multi-master competition formula bus structures, there are many main websites and run and the universal serial bus of dispersion arbitration and the spy of broadcast communication Point.In CAN 400 arbitrary node can at any time on one's own initiative on network other nodes send information and regardless of primary and secondary, Therefore free communication can be realized between each node.
Refer to Fig. 2, Fig. 2 is the subelement block diagram of processing unit 110 provided in an embodiment of the present invention.In the present embodiment In, receiving subelement 111 that described processing unit 110 includes being electrically connected with each other, computation subunit 113, judge that son is single Unit 115 and transmission subelement 117.
Described receiving subelement 111 receives each described cell 132 that each described converter unit 120 collects Voltage.
Specifically, described receiving subelement 111 is received by CAN 400 and gathers from each described converter unit 120 The voltage arriving.
Described computation subunit 113 calculates described equilibrium according to the voltage of the described cell of each receiving 132 Voltage.
Specifically, described equalizing voltage is the average voltage of each cell 132 of each converter unit 120 collection Value.
The voltage of each described cell 132 and described equalizing voltage are compared by described judgment sub-unit 115.
Specifically, first, described judgment sub-unit 115 by the voltage of each described cell 132 and described Jun Heng electricity Pressure is compared, and then, described judgment sub-unit 115 can make, according to the result after comparing, the voltage balancing control needing to assign Instruction.
The described comparison knot sending the voltage according to each described cell 132 for the subelement 117 and described equalizing voltage Fruit issues voltage balancing control instruction to the corresponding described converter unit 120 of each described cell 132.
Specifically, when the voltage of described cell 132 is less than described equalizing voltage, described processing unit 110 needs Assign pressurization control instruction to described converter unit 120, to control described converter unit 120 to increase described cell 132 Voltage.When the voltage of described cell 132 is more than described equalizing voltage, described processing unit 110 needs to described conversion Unit 120 assigns Decompression Controlling instruction, to control described converter unit 120 to reduce the voltage of described cell 132.
Refer to Fig. 3, Fig. 3 is the subelement block diagram of converter unit 120 provided in an embodiment of the present invention.
Described converter unit 120 includes voltage acquisition subelement 121 and voltage-regulation subelement 123.
Described voltage acquisition subelement 121 gathers the voltage of described cell 132, and the described cell by collection 132 voltage is sent to described processing unit 110 and processes.
Specifically, described converter unit 120 is connected with described cell 132 by gathering line, to realize to described list The voltage acquisition work of body battery 132.Described voltage acquisition subelement 121 passes through CAN 400 by the voltage data collecting It is sent to described processing unit 110.Described voltage acquisition subelement 121 is according to prefixed time interval to described cell 132 Voltage be acquired.Described prefixed time interval is set in advance in described processing unit 110, and described prefixed time interval can To be, but it is not limited to, 10 minutes, 20 minutes, 30 minutes etc..
Described voltage-regulation subelement 123, after receiving described voltage balancing control instruction, adjusts described cell 132 voltage, so that the voltage of described cell 132 is equal with described equalizing voltage.
Described voltage-regulation subelement 123 instructs to described cell 132 voltage according to described voltage balancing control Concrete regulative mode refers to Fig. 4, and Fig. 4 is the two-way selecting switch of voltage-regulation subelement 123 provided in an embodiment of the present invention 1230 connection figures.
Described voltage-regulation subelement 123 includes two-way selecting switch 1230, in described two-way selecting switch 1230 Road is connected with supply unit 200, and another road in described two-way selecting switch 1230 is connected with load 300.Described voltage-regulation Subelement 123, after receiving described voltage balancing control instruction, gates to described two-way selecting switch 1230 Zhong mono- tunnel.
Specifically, when the voltage of described cell 132 is less than described equalizing voltage, described two-way selecting switch 1230 Select to connect the switch connecting with supply unit 200, described supply unit 200 increases the electricity being supplied to described cell 132 Stream is to increase the voltage of described cell 132.When the voltage of described cell 132 is more than described equalizing voltage, described Two-way selecting switch 1230 selects to connect the switch connecting with load 300, and described load 300 is connected with described cell 132, Described load 300 can occupy the voltage of a part of described cell 132 voltage to reduce described cell 132.At this In embodiment, described supply unit 200 may be, but not limited to, the charger such as charger;Described load 300 can be, but It is not limited to, point splenium part such as resistance, resistance collection of multiple resistance composition.It is double that described two-way selecting switch 1230 preferably employs hilted broadsword Throw switch.
Refer to Fig. 5, Fig. 5 is the flow chart of voltage balance of battery method provided in an embodiment of the present invention.The present invention provides Voltage balance of battery method, be applied to voltage balance of battery system, methods described includes:
Step S110, described converter unit 120 gathers the voltage of each described cell 132.
Step S111, the voltage of each described cell 132 gathering is sent to described place by described converter unit 120 Reason unit 110.
Step S112, described processing unit 110 calculates to the voltage of each described cell 132 receiving To described equalizing voltage.
Step S113, described processing unit 110 issues control according to the voltage of described equalizing voltage and described cell 132 System instruction.
Step S114, described converter unit 120 voltage to described cell 132 after receiving described control instruction It is controlled, so that the voltage of each described cell 132 is equal with equalizing voltage.
In sum, the present invention provide voltage balance of battery device, system and method, by with each cell two The converter unit that end connects, to gather the voltage of described cell.Described converter unit is electrically connected with processing unit, described Processing unit, according to the voltage of each described converter unit collection, is calculated an equalizing voltage.Each described converter unit with Described equalizing voltage is adjusted to each cell as reference voltage, so that the voltage of each described cell and institute State equalizing voltage equal.Avoid generation unbalanced because the monomer of set of cells charges, and shorten set of cells service life and reduction The situation of set of cells serviceability, it is ensured that overall series battery can normally use, extends the use longevity of overall series battery Life.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (10)

1. a kind of voltage balance of battery device is it is characterised in that described device includes processing unit, set of cells and multiple conversion list Unit;
Described set of cells includes multiple cells, and multiple described cells are electrically connected with series;
Each described cell two ends is connected with converter unit described in, and described converter unit is used for gathering described cell Voltage;
Described processing unit is electrically connected with described converter unit, and described processing unit is according to each described converter unit collection The voltage of described cell, is calculated an equalizing voltage, and described processing unit is by described equalizing voltage and described collection Voltage control the working condition of described converter unit, so that the voltage of each described cell and described equalizing voltage phase Deng.
2. device according to claim 1 is it is characterised in that described processing unit includes the meter being electrically connected with each other Operator unit, judgment sub-unit, receiving subelement and transmission subelement;
Described receiving subelement receives the voltage of each described cell that each described converter unit collects;
Described computation subunit calculates described equalizing voltage according to the voltage of the described cell of each receiving;
The voltage of each described cell is compared by described judgment sub-unit with described equalizing voltage;
Described transmission subelement is according to the voltage of each described cell and the comparison result of described equalizing voltage to each institute State the corresponding described converter unit of cell and issue voltage balancing control instruction.
3. device according to claim 2 is it is characterised in that described converter unit includes voltage acquisition subelement and voltage Regulator unit;
Described voltage acquisition subelement gathers the voltage of described cell, and the voltage of the described cell of collection is sent To described processing unit processes;
Described voltage-regulation subelement, after receiving described voltage balancing control instruction, adjusts the voltage of described cell, So that the voltage of described cell is equal with described equalizing voltage.
4. device according to claim 3 is it is characterised in that described voltage acquisition subelement is according to prefixed time interval pair The voltage of described cell is acquired.
5. device according to claim 3 is it is characterised in that described voltage-regulation subelement includes:Two-way selecting switch, Described two-way selecting switch Zhong mono- tunnel is connected with supply unit, and another road in described two-way selecting switch is connected with load; Described voltage-regulation subelement, after receiving described voltage balancing control instruction, selects to described two-way selecting switch Zhong mono- tunnel Logical.
6. it is characterised in that described supply unit is charger, described load is resistance to device according to claim 5.
7. device according to claim 5 is it is characterised in that described two-way selecting switch is a single-pole double-throw switch (SPDT).
8. device according to claim 1 is it is characterised in that described converter unit and described processing unit are total by CAN Line connects.
9. a kind of voltage balance of battery system is it is characterised in that described voltage balance of battery system includes appointing in claim 1-8 One described voltage balance of battery device.
10. a kind of voltage balance of battery method of the voltage balance of battery system being applied to described in claim 9, its feature exists In methods described includes:
Described converter unit gathers the voltage of each described cell;
The voltage of each described cell gathering is sent to described processing unit by described converter unit;
Described processing unit carries out being calculated described equalizing voltage to the voltage of each described cell receiving;
Described processing unit issues control instruction according to the voltage of described equalizing voltage and described cell;
Described converter unit is controlled to the voltage of described cell after receiving described control instruction, so that each institute The voltage stating cell is equal with equalizing voltage.
CN201611051477.8A 2016-11-24 2016-11-24 Battery voltage balancing device, system and method Pending CN106385088A (en)

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Application Number Priority Date Filing Date Title
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101764420A (en) * 2009-12-31 2010-06-30 郭建国 Quick-charging intelligent balanced managing device for electric field type secondary battery
CN104242392A (en) * 2014-09-11 2014-12-24 深圳供电局有限公司 Device for monitoring and balancing voltage of storage battery
WO2015086321A1 (en) * 2013-12-10 2015-06-18 IFP Energies Nouvelles System and method for balancing the charge of a plurality of energy storage modules

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101764420A (en) * 2009-12-31 2010-06-30 郭建国 Quick-charging intelligent balanced managing device for electric field type secondary battery
WO2015086321A1 (en) * 2013-12-10 2015-06-18 IFP Energies Nouvelles System and method for balancing the charge of a plurality of energy storage modules
CN104242392A (en) * 2014-09-11 2014-12-24 深圳供电局有限公司 Device for monitoring and balancing voltage of storage battery

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