CN101924388A - Full automatic balance type battery pack charger device - Google Patents
Full automatic balance type battery pack charger device Download PDFInfo
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- CN101924388A CN101924388A CN 201010223857 CN201010223857A CN101924388A CN 101924388 A CN101924388 A CN 101924388A CN 201010223857 CN201010223857 CN 201010223857 CN 201010223857 A CN201010223857 A CN 201010223857A CN 101924388 A CN101924388 A CN 101924388A
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- battery pack
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Abstract
The invention discloses a full automatic balance type battery pack charger device which comprises an AC input unit, a series charging constant voltage and constant current charger, a central processing unit and a battery pack, wherein the AC input unit, the series charging constant voltage and constant current charger, the central processing unit and the battery pack are sequentially connected. The full automatic balance type battery pack charger device can overcome the defects of poor voltage balance, high cost, great difficulty in control of voltage compliance and the like in the prior art and realize the advantages of good voltage balance, low cost, small difficulty in the control of the voltage compliance and long service life.
Description
Technical field
The present invention relates to battery charger, particularly, relate to a kind of full automatic balance type battery pack charger device.
Background technology
Usually, group charger adopt the string charging or and charging, wherein, the circuit structure of string charging is simple, the efficient height, cost is low; Compare with the string charging, and the circuit structure complexity of charging, efficient is low, the cost height.
But, in the process of string charging, can't monitor the voltage of single battery in the battery pack, cause single battery to overcharge easily or fill insatiable hunger (being the imbalance of voltage), thereby cause battery capacity to reduce or battery pack is filled bad.
In addition, and the process of charging in, can monitor the voltage of single battery in the battery pack; But when battery pack was made up of the N batteries, group charger just needed fully independently N charger composition, causes the cost of group charger very high, and is difficult to can't effectively promote the voltage control unanimity of N charger.
In sum, in realizing process of the present invention, the inventor finds to exist at least in the prior art following defective:
(1) voltage balance is poor: the string charging the time, can't monitor the voltage of single battery in the battery pack, easily cause Voltage unbalance, thereby cause battery capacity to reduce or battery pack is filled bad;
(2) cost height: and in the process of charging the time, when battery pack was made up of the N batteries, group charger just needed fully independently N charger composition, causes the cost of group charger very high;
(3) voltage consistency control difficulty is big: very difficult the voltage control unanimity of N charger when group charger just needs that fully independently N charger formed and in the process of charging the time, can't effectively promote.
Summary of the invention
The objective of the invention is to,, propose a kind of full automatic balance type battery pack charger device, to realize that voltage balance is good, cost is low, voltage consistency control difficulty is little and the advantage of long service life at the problems referred to above.
For achieving the above object, the technical solution used in the present invention is: a kind of full automatic balance type battery pack charger device, comprise the AC input unit, and string fills constant voltage, constant current charger, CPU and battery pack; Wherein: described AC input unit, string fills constant voltage, constant current charger, and CPU and battery pack connect successively.
Further, described CPU comprises that string fills control switch, DC-DC insulating power supply, constant current control module, MCU power supply, MCU, electronic switch, constant-current supply and isolated controlling module, wherein: described string fills constant voltage, constant current charger, string fills control switch, and battery pack, connect successively; Described string fills constant voltage, constant current charger, the DC-DC insulating power supply, and the MCU power supply, MCU, electronic switch, isolated controlling module, and battery pack connect successively; Described DC-DC insulating power supply, constant current control module, constant-current supply and isolated controlling module connect successively; Described MCU fills control switch with string and is connected, and the isolated controlling module is connected with MCU, and electronic switch is connected with the constant current control module.
Further, described battery pack comprises the 1st to N batteries.
The full automatic balance type battery pack charger device of various embodiments of the present invention, owing to comprise the AC input unit, string fills constant voltage, constant current charger, CPU and battery pack; Wherein: the AC input unit, string fills constant voltage, constant current charger, and CPU and battery pack connect successively; Use this full automatic balance type battery pack charger device, can make battery pack at equilibrium always; Voltage balance is poor in the prior art, cost is high and the big defective of voltage consistency control difficulty thereby can overcome, to realize that voltage balance is good, cost is low, voltage consistency control difficulty is little and the advantage of long service life.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the operation principle schematic diagram of the full automatic balance type battery pack charger device according to the present invention.
In conjunction with the accompanying drawings, Reference numeral is as follows in the embodiment of the invention:
The 1-AC input unit; The 2-string fills constant voltage, constant current charger; The 3-string fills control switch; The 4-DC-DC insulating power supply; 5-constant current control module; The 6-MCU power supply; 7-MCU; The 8-electronic switch; The 9-constant-current supply; 10-isolated controlling module; The 11-battery pack; 1101-the 1st batteries; 110n-N batteries.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
According to the embodiment of the invention, provide a kind of full automatic balance type battery pack charger device.As shown in Figure 1, present embodiment comprises AC input unit 1, and string fills constant voltage, constant current charger 2, CPU and battery pack 11; Wherein: AC input unit 1, string fills constant voltage, constant current charger 2, and CPU and battery pack 11 connect successively.Here, battery pack 11 comprises the 1st to N batteries, as the 1st batteries 1101, the N batteries 110n.
Wherein, above-mentioned CPU comprises that string fills control switch 3, DC-DC insulating power supply 4, constant current control module 5, MCU power supply 6, MCU 7, electronic switch 8, constant-current supply 9 and isolated controlling module 10, particularly, string fills constant voltage, constant current charger 2, string fills control switch 3, and battery pack 11, connect successively; String fills constant voltage, constant current charger 2, DC-DC insulating power supply 4, and MCU power supply 6, MCU 7, electronic switch 8, isolated controlling module 10, and battery pack 11 connect successively; DC-DC insulating power supply 4, constant current control module 5, constant-current supply 9 and isolated controlling module 10 connect successively; MCU 7 fills control switch 3 with string and is connected, and isolated controlling module 10 is connected with MCU 7, and electronic switch 8 is connected with constant current control module 5.
In the above-described embodiments, AC input unit 1 fills constant voltage, constant current charger 2 for generally going here and there charger with string, is used to provide the power supply of required voltage, electric current and full automatic balance type battery pack charger device of battery pack 11 chargings; String fills control switch 3 and is the switch of controllable string charging; DC-DC insulating power supply 4 is the DC-DC insulating power supply, and all balance modules and string charger are isolated fully; Constant current control module 5 is controllable constant-current supply, and whether may command constant-current supply 9 starts charging; MCU power supply 6 is one group of power supply, gives MCU 7 power supplies; The data that 7 pairs of isolated controlling modules of MCU 10 are gathered are handled, and the control string fills control switch 3 and electronic switch 8; The Kai Heguan of electronic switch control constant current control module 5, the control of 10 pairs of single batteries of control isolated controlling module; Constant-current supply 9 provides balanced power supply; Isolated controlling module 10 can be as requested to single battery voltage detecting or charging.
CPU is the core of present embodiment, concrete workflow is: when charger is given battery pack 11 chargings, the string charging disconnects, earlier battery pack 11 single batteries are detected, if any being lower than minimum dynamo-electric piezoelectricity pond, equalizing circuit starts, under-voltage battery is charged successively, when all batteries all satisfied minimum dynamo-electric the pressure, the string charging was opened, and began battery pack 11 chargings; Then directly open string when minimum dynamo-electric the pressure all satisfied in detection as single battery and fill, battery pack 11 is charged.
Wherein, open single battery simultaneously in the time of the string charging and detect, selecting the single battery ceiling voltage automatically is benchmark, successively battery is compared; Such as survey battery pressure reduction all in scope with the interior equalizing circuit that then do not start; Such as survey battery pressure reduction overrun and then start equalizing circuit, under-voltage battery is carried out boost charge.The unlatching single battery of timing detects in whole charging process, if any finding that battery pressure reduction is overproof, then starts equalizing circuit, has really accomplished the overall process equilibrium.
In addition, when single battery detects,, then close the string charging immediately as finding overvoltage, as single battery voltage all in scope then charger be in monitor state; Outside scope, then start equalizing circuit separately if any single battery voltage, not enough battery carried out boost charge, until all cell voltages all in scope charger change monitoring state over to.
For example, be example with 10 string lithium manganate battery groups: battery pack is composed in series by the lithium manganate battery of 10 every joints of 4.2V, and battery pack 11 needs every batteries series connection point charge port that all goes between is needed 11 lines.When giving batteries charging, charger can detect the voltage of every joint lithium manganate battery earlier, as the battery that is lower than 2.5V (fixed according to customer requirement) is wherein arranged, charger can start equalizing circuit (euqalizing current is fixed according to the client), earlier all under-voltage batteries is charged to just to begin more than the 2.5V to start to go here and there and fills.
In string charging beginning simultaneously, charger also can be monitored every batteries voltage, automatically ceiling voltage is a benchmark in 10 batteries of selection, all the other cell voltages are compared, the start battery equalizing circuit that pressure reduction is surpassed 10mV carries out boost charge, to few charging successively, all is controlled at 10mV in until all battery pressure reduction from how, equalizing circuit cuts out, and charger is in the monitoring state; Charger can be monitored every batteries all the time in whole charging process, if any overproof automatic startup equalizing circuit.In monitor procedure, overcharge battery (overcharged voltage is set according to customer demand) as discovery, then charge closing string charging, start separately equalizing circuit, the super scope battery of pressure reduction carried out boost charge, until all cell voltages all in scope charger change monitoring state over to.
The full automatic balance type battery pack charger device of the foregoing description, can in filling, string increase a small amount of cost, the perfect adaptation that reaches string and fill, and by MCU 7 controls, just begin to detect the voltage of single battery in begin to charge, single battery has and does not reach the precharge requirement, begins earlier and fills and carry out precharge, by the time single battery reaches pre-charge voltage, just begins to open to go here and there to fill to carry out large current charge; Thereby avoided general string to fill the detection total voltage, had single battery not reach the phenomenon that pre-charge voltage just begins large current charge.Just the low battery of voltage is begun equilibrium from the charging beginning; Time for balance is long, and whole charging process is all being carried out equilibrium.
And general string fills, and just begins to carry out equilibrium at the last of charging in the cell voltage overvoltage protection, and time for balance is short; When beginning was balanced, battery had been overcharged; And, general and fill in a Battery pack group, be difficult to N charger voltage controlled unanimity; General string fills the use current detecting, can not the bonding batteries not overcharged; Even the charge balancing circuit is arranged, when cell began to overcharge, if charging current is greater than euqalizing current at this moment, battery still can be overcharged.Present embodiment uses a charger to carry out dual isolation charging to the N batteries in the Battery pack group, the charging voltage of the N batteries in a group is consistent, finish to use MCU to detect single battery voltage in charging, it is full that discovery has battery to fill, at once finishing string fills, use separately and fill battery pack is charged, avoided battery can cause the phenomenon that overcharges; As seen, use this full automatic balance type battery pack charger device after, can make battery pack at equilibrium always, help improving greatly the useful life of battery pack 11.
In sum, the full automatic balance type battery pack charger device of various embodiments of the present invention, owing to comprise the AC input unit, string fills constant voltage, constant current charger, CPU and battery pack; Wherein: the AC input unit, string fills constant voltage, constant current charger, and CPU and battery pack connect successively; Use this full automatic balance type battery pack charger device, can make battery pack at equilibrium always; Voltage balance is poor in the prior art, cost is high and the big defective of voltage consistency control difficulty thereby can overcome, to realize that voltage balance is good, cost is low, voltage consistency control difficulty is little and the advantage of long service life.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a full automatic balance type battery pack charger device is characterized in that, comprises the AC input unit, and string fills constant voltage, constant current charger, CPU and battery pack; Wherein:
Described AC input unit, string fills constant voltage, constant current charger, and CPU and battery pack connect successively.
2. full automatic balance type battery pack charger device according to claim 1, it is characterized in that, described CPU comprises that string fills control switch, DC-DC insulating power supply, constant current control module, MCU power supply, MCU, electronic switch, constant-current supply and isolated controlling module, wherein:
Described string fills constant voltage, constant current charger, and string fills control switch, and battery pack, connects successively;
Described string fills constant voltage, constant current charger, the DC-DC insulating power supply, and the MCU power supply, MCU, electronic switch, isolated controlling module, and battery pack connect successively;
Described DC-DC insulating power supply, constant current control module, constant-current supply and isolated controlling module connect successively;
Described MCU fills control switch with string and is connected, and the isolated controlling module is connected with MCU, and electronic switch is connected with the constant current control module.
3. full automatic balance type battery pack charger device according to claim 1 and 2 is characterized in that, described battery pack comprises the 1st to N batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010223857 CN101924388A (en) | 2010-07-12 | 2010-07-12 | Full automatic balance type battery pack charger device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010223857 CN101924388A (en) | 2010-07-12 | 2010-07-12 | Full automatic balance type battery pack charger device |
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| CN101924388A true CN101924388A (en) | 2010-12-22 |
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| CN 201010223857 Pending CN101924388A (en) | 2010-07-12 | 2010-07-12 | Full automatic balance type battery pack charger device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185169A (en) * | 2011-04-13 | 2011-09-14 | 苏州星恒电源有限公司 | Charging method and charging device for lithium ion battery pack |
| CN103532183A (en) * | 2013-09-26 | 2014-01-22 | 惠州市亿能电子有限公司 | Control method for balancing charging according to battery voltage |
| CN111864859A (en) * | 2020-08-12 | 2020-10-30 | 优动能科技(深圳)有限公司 | System and method for prolonging service life of lithium battery pack with constant-current and constant-voltage charging and discharging |
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| CN2424560Y (en) * | 2000-03-30 | 2001-03-21 | 黄以安 | Balance charger of battery |
| CN2722489Y (en) * | 2004-07-07 | 2005-08-31 | 青岛市家用电器研究所 | Automatic balanced recharging system of serial battery set |
| CN101026307A (en) * | 2006-12-25 | 2007-08-29 | 苏州市三环技贸有限公司 | Charging-discharging automatic balancing method for serial power lithium battery |
| CN101162846A (en) * | 2007-10-22 | 2008-04-16 | 赵建和 | Series battery charge up circuit with charge compensate function |
| CN201490290U (en) * | 2009-07-31 | 2010-05-26 | 田瑜 | Charger for rechargeable batteries connected in series and rechargeable battery pack |
| CN201758301U (en) * | 2010-07-12 | 2011-03-09 | 无锡晶磊电子有限公司 | Full-automatic balanced type battery pack charger device |
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2010
- 2010-07-12 CN CN 201010223857 patent/CN101924388A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424560Y (en) * | 2000-03-30 | 2001-03-21 | 黄以安 | Balance charger of battery |
| CN2722489Y (en) * | 2004-07-07 | 2005-08-31 | 青岛市家用电器研究所 | Automatic balanced recharging system of serial battery set |
| CN101026307A (en) * | 2006-12-25 | 2007-08-29 | 苏州市三环技贸有限公司 | Charging-discharging automatic balancing method for serial power lithium battery |
| CN101162846A (en) * | 2007-10-22 | 2008-04-16 | 赵建和 | Series battery charge up circuit with charge compensate function |
| CN201490290U (en) * | 2009-07-31 | 2010-05-26 | 田瑜 | Charger for rechargeable batteries connected in series and rechargeable battery pack |
| CN201758301U (en) * | 2010-07-12 | 2011-03-09 | 无锡晶磊电子有限公司 | Full-automatic balanced type battery pack charger device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185169A (en) * | 2011-04-13 | 2011-09-14 | 苏州星恒电源有限公司 | Charging method and charging device for lithium ion battery pack |
| CN103532183A (en) * | 2013-09-26 | 2014-01-22 | 惠州市亿能电子有限公司 | Control method for balancing charging according to battery voltage |
| CN103532183B (en) * | 2013-09-26 | 2016-08-24 | 惠州市亿能电子有限公司 | A kind of control method being charged equilibrium according to cell voltage |
| CN111864859A (en) * | 2020-08-12 | 2020-10-30 | 优动能科技(深圳)有限公司 | System and method for prolonging service life of lithium battery pack with constant-current and constant-voltage charging and discharging |
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Application publication date: 20101222 |