CN102185365A - Charging circuit for equalizing activation of multi-section series lithium ion battery pack and battery pack - Google Patents
Charging circuit for equalizing activation of multi-section series lithium ion battery pack and battery pack Download PDFInfo
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- CN102185365A CN102185365A CN2011101400192A CN201110140019A CN102185365A CN 102185365 A CN102185365 A CN 102185365A CN 2011101400192 A CN2011101400192 A CN 2011101400192A CN 201110140019 A CN201110140019 A CN 201110140019A CN 102185365 A CN102185365 A CN 102185365A
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- 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
Abstract
The invention discloses a charging circuit for equalizing activation of a multi-section series lithium ion battery pack and a battery pack. The charging circuit is used for charging the battery pack formed by arranging m lithium ion batteries in series and comprises a power frequency transformer, m rectifier bridges, m voltage-measuring control circuits and (m+1) guide lines, wherein the power frequency transformer is used for transforming mains supply to output voltage of m secondary windings corresponding to charging batteries; the m rectifier bridges are used for performing full-wave rectification on alternating current to form a sine wave direct current; the m voltage-measuring control circuits are used for detecting the voltage of each section battery and turning off the charging circuit; and the (m+1) guide lines are used for connecting the voltage-measuring control circuits and the batteries to form a charging loop. By the charging circuit, equalizing charge of all batteries is realized, the battery pack is maintained and preserved, uncharged application capacity of the battery pack is ensured, the service life of the battery pack is prolonged, and most of over-discharged batteries can be continuously available after being activated and charged. Moreover, the circuit is simple and reliable, low in cost, convenient to maintain, and easy for industrialized production.
Description
Technical field
The present invention relates to a kind of multi-section series lithium ionic cell group charging circuit, be specifically related to balanced activating charge circuit of a kind of multi-section series lithium ionic cell group and power brick.
Background technology
In the last few years, the application of electric bicycle and electric automobile more and more widely, for they provide the battery pack of forming such as lithium ion batteries such as cobalt acid lithium, LiMn2O4, lithium nickelate, ternary material, LiFePO4, lithium titanates by multi-section serial of the energy.Simultaneously, the application of multiple energy-storage battery also more and more widely.This has just produced the problem for these multi-section series lithium ionic cell group chargings.At present, most of lithium ion battery groups all adopt the serial connection charge circuit.As shown in Figure 1, by the batteries charging of a power module 01, form a charge circuit for forming by m joint series connected battery.Its subject matter is after repeatedly discharging and recharging, and occurs Voltage unbalance between the single battery, just the unequal phenomenon of voltage.After the user used a period of time, it was many to think that battery capacity reduces.The analysis reason is: in charging process, just cut off charging circuit when wherein the voltage of a batteries reaches the upscale protection value when the protective circuit in the battery pack 02 records, so just make the electric weight of most of batteries not have abundance; And in discharge process, just cut off battery voltage output when wherein the voltage of a batteries is lower than the downscale protection value when protective circuit records, this moment, the electric weight of most of batteries was not also put.After such situation repeated multiple times, the use capacity of battery pack reduces gradually, when serious even can only reach half of rated capacity.
For solving the problem that exists in the serial connection charge, many battery pack have adopted the charged in parallel circuit.As shown in Figure 2, to m batteries series connected battery group charging, be every batteries current source module 01 in parallel, and every batteries each be connected with current source module with two leads, each forms a charge circuit, forms m charge circuit altogether.Its subject matter have following some: 1) power module uses and to cause the cost height too much; 2) lead is many, and complex circuit makes reliability decrease; 3) charging cable pressure drop affects pressure measurement precision, 4) consistency between each power module is poor, makes that each batteries charging is unbalanced.
Summary of the invention
An object of the present invention is to provide the balanced activating charge circuit of a kind of multi-section series lithium ionic cell group.
Charging circuit provided by the invention charges for the battery pack that is composed in series by m joint lithium ion battery, m 〉=2, and each single battery reaches ceiling voltage Vh when being full of electricity.Charging circuit comprises: Industrial Frequency Transformer, in order to the output voltage of the corresponding m of the battery secondary winding that civil power converted to and charged; M rectifier bridge forms sinusoidal wave direct current in order to alternating current is carried out full-wave rectification; M pressure measurement control circuit is in order to the voltage that detects every batteries and turn-off charging circuit; M+1 root lead is in order to connect pressure measurement control circuit and battery to form charge circuit.In each group charging circuit, the output voltage of the secondary winding of Industrial Frequency Transformer is sent to the input of rectifier bridge, the output of rectifier bridge is connected to the elementary positive pole and the negative pole of pressure measurement control circuit respectively, and the secondary positive pole of pressure measurement control circuit and negative pole are connected to the positive pole and the negative pole of battery respectively.The positive pole of two adjacent pressure measurement control circuits links to each other with negative pole, and a shared lead is connected to the junction of the positive pole and the negative pole of corresponding two batteries, the shared lead of two promptly adjacent charging circuits.
Further, charging circuit also comprises the indicating circuit of being made up of the LED of series connection and voltage stabilizing didoe ZD, has stopped charging in order to the expression corresponding battery.
Another object of the present invention provides a kind of power brick.
The sheathing material of power brick provided by the invention is that insulating material or insulating material add metal material, and portion is packaged with the battery pack be made up of the lithium ion battery of m joint series connection and above-mentioned charging circuit in the enclosure.
Power brick of the present invention when being battery charge care and maintenance battery, and, when having reduced cost, also improved reliability owing to reduced the external cable and the plug of battery and charging circuit.
The superiority of charging circuit of the present invention:
1, adopt unskilled labor frequency power transformer and rectifier bridge, cost hangs down good reliability;
2, to fill be main to string, and to fill be auxilliary, guarantees that every batteries charge volume equates
3, adopt accurate " pressure measurement control circuit " to guarantee that battery does not overcharge;
4, the discrepant battery pack of single battery capacity after once charging, can guarantee that just the voltage of every batteries equates;
5, owing to adopt sinusoidal wave charged with direct current, battery there is activation;
6, the cell to " having put dead " need not be opened power brick and handle, under the control of " pressure measurement control circuit ", and " activation " charging in can wrapping.Battery after " activation " can continue to use;
7, every group of charging circuit all has LED light, the time successively bright according to indicator light, can judge battery quality state;
8, the adjacent shared lead of two charging circuits, number of conductors reduces, and reliability improves.
Therefore, utilize " balanced activating charge circuit " that the lithium ion battery group of multi-section serial is charged, realized equalizing charge to each batteries, simultaneously care and maintenance battery pack, the use capacity that not only can guarantee battery pack is constant, and can prolong the useful life of battery pack, to the battery pack of " having put dead ", after " activation " charging, most of battery pack can continue to use.Because circuit is simple and reliable, cost is very low, and is easy to maintenance, so easy industrialized production.
Description of drawings
Fig. 1 is the schematic diagram of the serial connection charge circuit of prior art;
Fig. 2 is the schematic diagram of the charged in parallel circuit of prior art;
Fig. 3 is the schematic diagram according to the charging circuit of embodiment of the present invention;
Fig. 4 is the schematic diagram of one group of charging circuit of charging circuit of the present invention.
Embodiment
The present invention introduces a kind of New-type charge circuit, and its core technology is " string fills automatic commentaries on classics and fills control circuit ".As everyone knows, in the serial connection charge circuit, the electric weight that charges into every batteries equates, and the voltage of realizing the every batteries of control in the charged in parallel circuit easily equates, if can design a kind of like this circuit, in charging process, 90 percent time is serial connection charge, 10 time is charged in parallel, so just can realize the purpose that electric weight equates and voltage also equates that every batteries charges into.
The present invention charges for the battery pack that is composed in series by lithium ion batteries such as the sour lithium of m joint such as cobalt, LiMn2O4, lithium nickelate, ternary material, LiFePO4, lithium titanates, m 〉=2, and each single battery reaches ceiling voltage Vh when being full of electricity.As shown in Figure 3, charging circuit comprises: Industrial Frequency Transformer 101, in order to the output voltage of the corresponding m of the battery secondary winding that civil power converted to and charged; M rectifier bridge 102 forms sinusoidal wave direct current in order to alternating current is carried out full-wave rectification; M pressure measurement control circuit 103 is in order to the voltage that detects every batteries and turn-off charging circuit; M+1 root lead is in order to connect pressure measurement control circuit 103 and battery to form charge circuit.In each group charging circuit, the output voltage of the secondary winding of Industrial Frequency Transformer 101 is sent to the input of rectifier bridge 102, the output of rectifier bridge 102 is connected to the elementary positive pole and the negative pole of pressure measurement control circuit 103 respectively, and the secondary positive pole of pressure measurement control circuit 103 and negative pole are connected to the positive pole and the negative pole of battery respectively.The positive pole of two adjacent pressure measurement control circuits 103 links to each other with negative pole, and a shared lead is connected to the junction of the positive pole and the negative pole of corresponding two batteries, the shared lead of two promptly adjacent charging circuits.The crest voltage Vp of the direct voltage that full-wave rectification forms is a little more than ceiling voltage Vh.Adopt Industrial Frequency Transformer rather than current source module, can reduce cost.Through rectifier bridge 102 sine wave output direct currents, adopting sinusoidal wave direct current to charge has two benefits: the one, and circuit is simple and reliable, and the 2nd, the pulsation charging current has activation to battery.
Pressure measurement control circuit 103 comprises bridge circuit, operational amplifier OpAmp and MOS transistor, as shown in Figure 4, in order to the voltage of detection battery, and turn-offs charging circuit.Positive pole and negative pole that the input of bridge circuit is connected to battery respectively as the secondary positive pole and the negative pole of pressure measurement control circuit, the output of bridge circuit is connected to operational amplifier, the output voltage of operational amplifier is sent to the grid of MOS transistor, and MOS transistor is connected on the output that is connected to rectifier bridge in the pressure measurement control circuit as control switch.When the voltage of battery reached ceiling voltage Vh, bridge circuit detected this voltage, and was sent to operational amplifier, and the output voltage of operational amplifier becomes high level, and MOS transistor is turn-offed, and charging circuit disconnects, and corresponding battery stops charging.
Further, indicating circuit in parallel between the output of rectifier bridge 102 has stopped charging in order to the expression corresponding battery.As shown in Figure 4, indicating circuit comprises the LED and the voltage stabilizing didoe ZD of series connection.When the voltage of pairing battery reached ceiling voltage Vh, MOS transistor was turn-offed, and the voltage of the secondary winding of the zero load of Industrial Frequency Transformer raises, direct voltage after the rectification raises, voltage stabilizing didoe ZD is breakdown, and LED is luminous, and the expression battery reaches ceiling voltage and stops charging.
Further, capacitor C in parallel between the output of rectifier bridge 102, as shown in Figure 4, in order to guarantee no longer restarting of pressure measurement control circuit.
Above-mentioned charging circuit is encapsulated in the shell with the battery pack of being made up of the lithium ion battery of m joint series connection, has constituted power brick of the present invention, wherein m 〉=2.The material of shell is that insulating material or insulating material add metal material, and battery is a kind of in the lithium ion batteries such as cobalt acid lithium, LiMn2O4, lithium nickelate, ternary material, LiFePO4, lithium titanate
Be example with 12 batteries series connected battery groups below, specify charging process.The ceiling voltage of every batteries is 3.60V.
After connecting civil power alternating current 220V, the crest voltage of the direct voltage of output voltage after 12 rectifier bridge rectifications of 12 secondary winding of Industrial Frequency Transformer is 4V, be added to 12 pressure measurement control circuits respectively, if the voltage of every batteries all is lower than 3.60V, 12 pressure measurement control circuits are all connected, and the Voltage Series after 12 tunnel rectifications are got up, about the about 60V of total voltage, to the battery pack serial connection charge, has only the loop of 1 serial connection charge by No. 1 lead and No. 13 leads this moment.When certain batteries reached 3.60V in the battery pack, corresponding pressure measurement control circuit recorded this voltage and turn-offs corresponding charging circuit.For example: No. 5 battery at first reaches 3.60V, and No. 5 corresponding pressure measurement control circuits turn-off the 5th group of charging circuit, and No. 5 battery stops charging, and other batteries continue charging.Differently with beginning be, two serial connection charge loops are arranged this moment, one tunnel charge circuit of forming by No. 1 lead and No. 5 leads, the charge circuit that another road is made up of No. 6 leads and No. 13 leads.Continue charging, when No. 9 cell voltages reached 3.60V, No. 9 corresponding pressure measurement control circuits turn-offed the 9th group of rectifying output circuit, and No. 9 battery stops charging.Formed 3 charge circuits this moment, No. 1 lead and No. 5 leads form 1 loop, and No. 6 leads and No. 9 leads form 1 loop, and No. 10 leads and No. 13 leads form 1 loop, continue charging, by that analogy, and till all batteries all are charged to 3.60V.In the whole charging process, the most of the time is a serial connection charge, and this has just guaranteed the electric weight of the charging of every batteries is equated.In the complete charge process, by pressure measurement control circuit control single battery stop fill, because 2 to No. 12 leads do not have electric current in the serial connection charge process, the voltage that the pressure measurement control circuit records is exactly cell voltage, do not have the influence of line drop, so just guaranteed that 2 to No. 11 batteries stop the precision of charging voltage.No. 1 battery and No. 12 batteries be because No. 1 lead and No. 13 leads have the influence of line drop, and the time of charging is longer, but the voltage when stopping filling at last equates with other batteries.
It should be noted that at last the purpose of publicizing and implementing example is to help further to understand the present invention, but it will be appreciated by those skilled in the art that: without departing from the spirit and scope of the invention and the appended claims, various substitutions and modifications all are possible.Therefore, the present invention should not be limited to the disclosed content of embodiment, and the scope of protection of present invention is as the criterion with the scope that claims define.
Claims (10)
1. charging circuit, be used for charging for the battery pack that is composed in series by lithium ion batteries such as m joint cobalt acid lithium, LiMn2O4, lithium nickelate, ternary material, LiFePO4, lithium titanates, it is characterized in that, described charging circuit comprises: Industrial Frequency Transformer, in order to the output voltage of the corresponding m of the battery secondary winding that civil power converted to and charged; M rectifier bridge forms sinusoidal wave direct current in order to alternating current is carried out full-wave rectification; M pressure measurement control circuit is in order to the voltage that detects every batteries and turn-off charging circuit; M+1 root lead is in order to connect pressure measurement control circuit and battery to form charge circuit; In each group charging circuit, the output voltage of Industrial Frequency Transformer is sent to the input of rectifier bridge, the output of rectifier bridge is connected to the elementary positive pole and the negative pole of pressure measurement control circuit respectively, the secondary positive pole of pressure measurement control circuit and negative pole are connected to the positive pole and the negative pole of battery respectively, the positive pole of two adjacent pressure measurement control circuits links to each other with negative pole, a shared lead is connected to the junction of the positive pole and the negative pole of corresponding two batteries, wherein m 〉=2.
2. charging circuit as claimed in claim 1 is characterized in that, the crest voltage Vp of the direct voltage that full-wave rectification forms is a little more than the ceiling voltage Vh of battery.
3. charging circuit as claimed in claim 1, it is characterized in that, described pressure measurement control circuit comprises bridge circuit, operational amplifier and MOS transistor, positive pole and negative pole that the input of described bridge circuit is connected to battery respectively as the secondary positive pole and the negative pole of described pressure measurement control circuit, the output of described bridge circuit is connected to described operational amplifier, the output voltage of described operational amplifier is sent to the grid of described MOS transistor, and described MOS transistor is connected on the output that is connected to rectifier bridge in the described pressure measurement control circuit as control switch.
4. charging circuit as claimed in claim 3, it is characterized in that, when the voltage of battery reaches ceiling voltage Vh, described bridge circuit detects this voltage, and be sent to described operational amplifier, and the output voltage of described operational amplifier becomes high level, and this moment, MOS transistor was turn-offed, charging circuit disconnects, and corresponding battery stops charging.
5. charging circuit as claimed in claim 1 is characterized in that, further comprises indicating circuit, and described indicating circuit is connected in parallel on the output of described rectifier bridge, and described indicating circuit comprises the LED and the voltage stabilizing didoe ZD of series connection.
6. charging circuit as claimed in claim 5, it is characterized in that, when the voltage of pairing battery reaches ceiling voltage Vh, described MOS transistor is turn-offed, the voltage of the secondary winding of the zero load of described Industrial Frequency Transformer raises, and the direct voltage after the rectification raises, and described voltage stabilizing didoe ZD is breakdown, described LED is luminous, and the expression battery reaches ceiling voltage Vh and stops charging.
7. charging circuit as claimed in claim 1 is characterized in that, further comprises capacitor, and described capacitor is connected in parallel on the output of rectifier bridge, in order to guarantee no longer restarting of described pressure measurement control circuit.
8. power brick, its main body comprises a shell, it is characterized in that, is packaged with the battery pack be made up of m joint lithium ion battery in the inside of described shell and as one of right 1 to 7 described charging circuit, wherein m 〉=2.
9. power brick as claimed in claim 8 is characterized in that, described battery is a kind of in the lithium ion batteries such as cobalt acid lithium, LiMn2O4, lithium nickelate, ternary material, LiFePO4, lithium titanate.
10. power brick as claimed in claim 8 is characterized in that, the material of described shell is that insulating material or insulating material add metal material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101400192A CN102185365B (en) | 2011-05-27 | 2011-05-27 | Charging circuit for equalizing activation of multi-section series lithium ion battery pack and battery pack |
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| CN2011101400192A CN102185365B (en) | 2011-05-27 | 2011-05-27 | Charging circuit for equalizing activation of multi-section series lithium ion battery pack and battery pack |
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| CN102185365A true CN102185365A (en) | 2011-09-14 |
| CN102185365B CN102185365B (en) | 2013-03-06 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389465A (en) * | 2012-05-11 | 2013-11-13 | 光阳工业股份有限公司 | Method for measuring electric quantity of battery |
| CN104221244A (en) * | 2011-10-26 | 2014-12-17 | 雷诺两合公司 | Method for balancing the charge and discharge level of a battery by switching its blocks of cells |
| CN104810496A (en) * | 2014-01-23 | 2015-07-29 | 广西电网公司百色供电局 | Two-way crossover circuit |
| CN105375761A (en) * | 2015-10-26 | 2016-03-02 | 广州金升阳科技有限公司 | Fly-back switching power supply and loop control circuit thereof |
| CN106104964A (en) * | 2015-02-10 | 2016-11-09 | 存点有限公司 | For the high power charging device that energy storing device is charged |
| CN107947294A (en) * | 2017-12-25 | 2018-04-20 | 四川长虹电器股份有限公司 | The battery management system of hybrid power battery core |
| CN111262285A (en) * | 2018-12-03 | 2020-06-09 | 丰能科技股份有限公司 | Battery management system and method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424560Y (en) * | 2000-03-30 | 2001-03-21 | 黄以安 | Balance charger of battery |
| CN1641966A (en) * | 2004-01-14 | 2005-07-20 | 财团法人工业技术研究院 | Equating circuit for serial battery |
| JP2011023271A (en) * | 2009-07-17 | 2011-02-03 | Yanagi Elec Co Ltd | Battery capacity control device of battery pack |
| CN202103444U (en) * | 2011-05-27 | 2012-01-04 | 北京欧满德科技发展有限公司 | Battery pack and circuit for performing charging and activation in equalized manner for battery group formed by multiple serially-connected lithium ion batteries |
-
2011
- 2011-05-27 CN CN2011101400192A patent/CN102185365B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424560Y (en) * | 2000-03-30 | 2001-03-21 | 黄以安 | Balance charger of battery |
| CN1641966A (en) * | 2004-01-14 | 2005-07-20 | 财团法人工业技术研究院 | Equating circuit for serial battery |
| JP2011023271A (en) * | 2009-07-17 | 2011-02-03 | Yanagi Elec Co Ltd | Battery capacity control device of battery pack |
| CN202103444U (en) * | 2011-05-27 | 2012-01-04 | 北京欧满德科技发展有限公司 | Battery pack and circuit for performing charging and activation in equalized manner for battery group formed by multiple serially-connected lithium ion batteries |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104221244A (en) * | 2011-10-26 | 2014-12-17 | 雷诺两合公司 | Method for balancing the charge and discharge level of a battery by switching its blocks of cells |
| CN103389465A (en) * | 2012-05-11 | 2013-11-13 | 光阳工业股份有限公司 | Method for measuring electric quantity of battery |
| CN103389465B (en) * | 2012-05-11 | 2015-10-21 | 光阳工业股份有限公司 | The quantity measuring method of battery |
| CN104810496A (en) * | 2014-01-23 | 2015-07-29 | 广西电网公司百色供电局 | Two-way crossover circuit |
| CN106104964A (en) * | 2015-02-10 | 2016-11-09 | 存点有限公司 | For the high power charging device that energy storing device is charged |
| CN105375761A (en) * | 2015-10-26 | 2016-03-02 | 广州金升阳科技有限公司 | Fly-back switching power supply and loop control circuit thereof |
| CN105375761B (en) * | 2015-10-26 | 2017-12-15 | 广州金升阳科技有限公司 | The loop control circuit of inverse-excitation type switch power-supply a kind of and apply its inverse-excitation type switch power-supply |
| CN107947294A (en) * | 2017-12-25 | 2018-04-20 | 四川长虹电器股份有限公司 | The battery management system of hybrid power battery core |
| CN107947294B (en) * | 2017-12-25 | 2021-02-09 | 四川长虹电器股份有限公司 | Battery management system of hybrid power battery core |
| CN111262285A (en) * | 2018-12-03 | 2020-06-09 | 丰能科技股份有限公司 | Battery management system and method thereof |
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| CN102185365B (en) | 2013-03-06 |
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