CN103633698A - Battery equalizing charging method and equalizing charger thereof - Google Patents
Battery equalizing charging method and equalizing charger thereofDownload PDFInfo
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- CN103633698A CN103633698ACN201310616934.3ACN201310616934ACN103633698ACN 103633698 ACN103633698 ACN 103633698ACN 201310616934 ACN201310616934 ACN 201310616934ACN 103633698 ACN103633698 ACN 103633698A
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- 239000000178monomerSubstances0.000claimsabstractdescription84
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- 238000012544monitoring processMethods0.000abstract1
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Abstract
Description
Technical field
The present invention relates to a kind of equalizing charge of battery method and equalizing charger thereof, belong to battery testing field.
Background technology
Conventional group charger generally adopts charger to carry out serial connection charge to battery pack at present, because battery pack is composed in series by many monomer battery cores, between each monomer battery core, inevitably there is individual difference, and although the mode of serial connection charge is easy, fast, but the carrying out along with charging, wherein must there be indivedual monomer battery cores to arrive maximum charging voltage, and other monomer battery cores also do not reach this voltage, if continue as batteries charging, must cause some monomer battery core to overcharge, when if total voltage reaches specified charging voltage, wherein some monomer battery core does not also reach maximum charging voltage, this is that charger has just stopped work, must cause indivedual monomer battery core charge less electricity, therefore, indivedual monomer battery cores in battery pack are overcharged or charge less electricity for a long time, cause monomer battery core seriously to produce a polarization, thereby affect the performance and used life of battery pack.
Recently, people progressively pay attention to the equalizing charge research of battery pack, and the balanced charging method proposing is at present divided into following several, and one, when in battery pack, certain battery core reaches maximum charging voltage, start a by-pass current, the electric current that flows through this monomer battery core is reduced, make it reduce charging rate, progressively synchronize with other monomer battery cores, yet this method cost is higher, and the ability of equalization is limited, when in battery pack, monomer battery core differs greatly, the method just cannot be applied; Two, change the connected mode of batteries monomer battery core, by the monomer battery core being originally cascaded, by switching device shifter, change into and be connected in parallel, then it is charged, after charging finishes, then switch to series system, this method has its feasibility in theory, yet switching device shifter is too complicated, volume is excessive, and using value is little; Three, first adopt charger to battery pack serial connection charge, when certain monomer battery core wherein reaches after maximum charging voltage, stop charger, switch to independently charger every monomer battery core is carried out to trickle charge, because charger charging current is generally larger, and the trickle-charge current of charge independence device is very little, between transfer period, monomer battery core is caused to great impact, this does not meet the charging standard of battery.
The present invention proposes a kind of method of equalizing charge of battery, adopt the charge power supply identical with monomer battery core quantity in battery pack to charge to monomer battery core, pass through Based Intelligent Control, charging process is monitored, compare battery balanced better effects if with above-mentioned method, and meet battery charging standard.
Summary of the invention
The present invention is intended to propose a kind of equalizing charge of battery method and equalizing charger thereof, and the battery pack being comprised of many monomer battery cores is carried out to equalizing charge, to improve the integral body charging saturation of battery pack, and by display, shows the voltage of each monomer battery core.
For realizing above-mentioned object, the present invention adopts following technical scheme:
The present invention proposes a kind of equalizing charge of battery method, comprises the battery pack and the balanced charging device that by after many monomer battery core series connection, form, and the method for described equalizing charge of battery comprises the following steps:
(1) the monomer battery core in battery pack is carried out to voltage sample;
(2) control the charge power supply being connected with every monomer battery core and start, the monomer battery core being connected with this charge power supply is charged;
(3), when monomer battery core voltage meets or exceeds the upper voltage limit of setting, control the charge power supply being connected with this monomer battery core and stop;
(4), when monomer battery core voltage falls the control voltage of extremely setting after rise, control the charge power supply being connected with this monomer battery core and restart;
(5) repeat (2)～(4) step, until when all monomer battery core all reaches the described state of step (3), equalizing charge finishes.
Described monomer battery core can be comprised of a battery core, also can be by forming after many identical battery core parallel connections.
When being sampled, monomer battery core carries out in the following order: control after charge power supply quits work and carry out again monomer battery core voltage sample, after sampling, recover again the operating state of charge power supply.
In order to realize said method, the present invention proposes a kind of equalizing charger of realizing described equalizing charge of battery method, comprise controller unit (1), power subsystem (2), LCD MODULE (3), charge power supply 1 (4-1)～charge power supply N (4-n), monomer battery core 1 (5-1)～monomer battery core N (5-n), is shown in accompanyingdrawing 1;
Power subsystem (2) connects controller unit (1) and charge power supply 1 (4-1)～charge power supply N (4-n), working power is provided, controller unit (1) connects charge power supply 1 (4-1)～charge power supply N (4-n), gather the voltage of monomer battery core 1 (5-1)～monomer battery core N (5-n), and control charge power supply 1 (4-1)～charge power supply N (4-n) and start or stop, the magnitude of voltage of monomer battery core 1 (5-1)～monomer battery core N (5-n) is shown by the LCD MODULE (3) connecting.
Described charge power supply 1 (4-1)～charge power supply N (4-n) is identical with monomer battery core 1 (5-1)～monomer battery core N (5-n) quantity in battery pack.
Described charge power supply 1 (4-1)～charge power supply N (4-n) is connected by N+1 bar output line with monomer battery core 1 (5-1)～monomer battery core N (5-n) in battery pack, also can connect by 2 * N bar output line, can also connect by 4 * N bar output line.
Beneficial effect of the present invention:
(1) can realize fast uniform charging to power battery pack, guarantee that the voltage of monomer battery core in battery pack is consistent, thereby improve the consistency of performance of each monomer battery core in power battery pack;
(2) the monomer battery core magnitude of voltage showing in real time, helps operator to understand in real time the state of battery pack.
accompanying drawing explanation:
Accompanyingdrawing 1 is the theory diagram of equalizing charger proposed by the invention.
embodiment:
In order to make technical scheme of the present invention clearer, below in conjunction with drawings and Examples, the present invention is described in more detail, and instantiation described herein only, in order to explain the present invention, is not limited to the present invention.
embodiment:
1, monomer battery core 1 (5-1)～monomer battery core N (5-n) of equalizing charger and battery pack is coupled together;
2, start equalizing charger, power subsystem (2) provides work required power supply for equipment;
3, controller unit (1) carries out voltage acquisition to monomer battery core 1 (5-1)～monomer battery core N (5-n) and shows in LCD MODULE (3);
4, voltage is started at charge power supply 1 (4-1)～charge power supply N (4-n) corresponding to the monomer battery core of setting range, monomer battery core 1 (5-1)～monomer battery core N (5-n) is charged;
5, controller unit (1) carries out timing, when timing reaches behind setting-up time interval, record the operating state of charge power supply 1 (4-1)～charge power supply N (4-n), and control charge power supply 1 (4-1)～charge power supply N (4-n) and quit work;
6, controller unit (1) carries out voltage acquisition to monomer battery core 1 (5-1)～monomer battery core N (5-n) and shows in LCD MODULE (3);
7,, according to the state of the 5th step record, recover the operating state of charge power supply 1 (4-1)～charge power supply N (4-n);
8, repeat 5 ~ 7 steps, when a certain monomer battery core reaches setting voltage, stop the work of corresponding with it charge power supply;
9, when being stopped the monomer battery core voltage of charging, fall after rise when controlling voltage, restart corresponding with it charge power supply, continue this monomer battery core to charge;
10, when whole monomer battery cores meet the condition of the 8th step, equalizing charge finishes.
Claims (6)
1. an equalizing charge of battery method, comprises the battery pack and the balanced charging device that by after many monomer battery core series connection, form, it is characterized in that: the method for described equalizing charge of battery comprises the following steps:
(1) the monomer battery core in battery pack is carried out to voltage sample;
(2) control the charge power supply being connected with every monomer battery core and start, the monomer battery core being connected with this charge power supply is charged;
(3), when monomer battery core voltage meets or exceeds the upper voltage limit of setting, control the charge power supply being connected with this monomer battery core and stop;
(4), when monomer battery core voltage falls the control voltage of extremely setting after rise, control the charge power supply being connected with this monomer battery core and restart;
(5) repeat (2)～(4) step, until when all monomer battery core all reaches the described state of step (3), equalizing charge finishes.
2. a kind of equalizing charge of battery method according to claim 1, is characterized in that: described monomer battery core can be comprised of a battery core, also can be by forming after many identical battery core parallel connections.
3. a kind of equalizing charge of battery method according to claim 1, is characterized in that: control after charge power supply quits work and carry out monomer battery core voltage sample again, recover the operating state of charge power supply after sampling again.
4. an equalizing charger of realizing equalizing charge of battery method claimed in claim 1, it is characterized in that: comprise controller unit (1), power subsystem (2), LCD MODULE (3), charge power supply 1 (4-1)～charge power supply N (4-n), monomer battery core 1 (5-1)～monomer battery core N (5-n); Power subsystem (2) connects controller unit (1) and charge power supply 1 (4-1)～charge power supply N (4-n), working power is provided, controller unit (1) connects charge power supply 1 (4-1)～charge power supply N (4-n), gather the voltage of monomer battery core 1 (5-1)～monomer battery core N (5-n), and control charge power supply 1 (4-1)～charge power supply N (4-n) and start or stop, the magnitude of voltage of monomer battery core 1 (5-1)～monomer battery core N (5-n) is shown by the LCD MODULE (3) connecting.
5. a kind of equalizing charge of battery device according to claim 3, is characterized in that: charge power supply 1 (4-1)～charge power supply N (4-n) is identical with monomer battery core 1 (5-1)～monomer battery core N (5-n) quantity in battery pack.
6. a kind of equalizing charge of battery device according to claim 3, it is characterized in that: charge power supply 1 (4-1)～charge power supply N (4-n) is connected by N+1 bar output line with monomer battery core 1 (5-1)～monomer battery core N (5-n) in battery pack, also can connect by 2 * N bar output line, can also connect by 4 * N bar output line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310616934.3ACN103633698A (en) | 2013-11-29 | 2013-11-29 | Battery equalizing charging method and equalizing charger thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310616934.3ACN103633698A (en) | 2013-11-29 | 2013-11-29 | Battery equalizing charging method and equalizing charger thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059014A (en)* | 2016-08-06 | 2016-10-26 | 北京耐威智能科技有限公司 | Charging-discharging control method and device of battery pack and balanced charging and discharging box |
| CN106253387A (en)* | 2016-08-18 | 2016-12-21 | 厦门日臻动力电源科技有限公司 | A kind of charger of lithium ion multi-string battery group |
| CN106786844A (en)* | 2016-11-28 | 2017-05-31 | 哈尔滨威星动力电源科技开发有限责任公司 | A kind of power battery pack equalizing charge system and method |
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| US20130106360A1 (en)* | 2011-10-26 | 2013-05-02 | Eetrex, Inc. | Battery cell charge balancing |
- 2013
- 2013-11-29CNCN201310616934.3Apatent/CN103633698A/enactivePending
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| CN1658427A (en)* | 2003-12-23 | 2005-08-24 | 三星Sdi株式会社 | Charging method and charging device for rechargeable battery |
| CN1988317A (en)* | 2005-12-21 | 2007-06-27 | 刘孝伟 | Self adaptive fixed flow intermittent pulse limit time charging method |
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| CN106059014A (en)* | 2016-08-06 | 2016-10-26 | 北京耐威智能科技有限公司 | Charging-discharging control method and device of battery pack and balanced charging and discharging box |
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