CN103248081A - Equalizing circuit for rechargeable battery pack comprising 4 batteries connected in series - Google Patents
Equalizing circuit for rechargeable battery pack comprising 4 batteries connected in series Download PDFInfo
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- CN103248081A CN103248081A CN2012100319465A CN201210031946A CN103248081A CN 103248081 A CN103248081 A CN 103248081A CN 2012100319465 A CN2012100319465 A CN 2012100319465A CN 201210031946 A CN201210031946 A CN 201210031946A CN 103248081 A CN103248081 A CN 103248081A
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Abstract
The invention discloses a circuit for equalizing residual electrical quantity of each single battery in the rechargeable battery pack comprising 4 batteries connected in series. The circuit takes energy from the rechargeable battery pack comprising 4 batteries connected in series, and selective charging is performed on any one single rechargeable battery in the rechargeable battery pack comprising 4 batteries connected in series through an isolation switching power supply and a switched network. Therefore, residual electrical quantity in each single battery can be adjusted.
Description
Technical field
The present invention relates to a kind of in 4 joint serial connection charge battery pack the circuit of initiatively balanced each cell dump energy.This circuit is got energy from the whole Battery pack that 4 joint rechargeable batteries are composed in series, by an isolation type switch power and switching network a certain joint monomer rechargeable batteries in the 4 joint serial connection charge battery pack are selectively charged, thereby regulate dump energy in each cell.
Background technology
Rechargeable battery, as lithium battery etc., when series connection is used in groups, owing to be subjected to production technology, and Effect of Environmental, the dump energy of each cell can not be in full accord.This inconsistency can cause rechargeable battery set shortening discharge time when long-term the use, and the charging interval lengthens, and cycle life reduces.At present, in order to overcome this inconsistency, generally adopt the passive equalization methods of conductive discharge formula.This method is a switch in parallel and resistance on each cell, and the mode of by resistance charging current being shunted when charging improves consistency.There is energy dissipation in this passive equalization methods, shortcoming such as the low and caloric value of balanced efficient is big.
Summary of the invention
In order to overcome the energy dissipation that the passive equalization methods of existing battery pack exists, shortcomings such as the low and caloric value of balanced efficient is big, the invention provides a kind of active equalizing circuit, adopt isolation type switch power and switching network, come equilibrium 4 to save the dump energy of each cell in the serial connection charge battery pack by the mode that energy shifts.
The technical solution adopted for the present invention to solve the technical problems: the negative pole of battery Cell1 connects switch S 5 in the series battery, anodal switch S 1 and the S6 of connecting, the positive pole of battery Cell2 connects switch S 2 and S7, the positive pole of battery Cell3 connects switch S 3 and S8, and the positive pole of battery Cell4 connects switch S 4.The other end of switch S 1, S2, S3, S4 links to each other, and connects switch S 9, and the other end of switch S 9 connects the cathode output end OUT+ of isolation type switch power PS.The other end of switch S 5, S6, S7, S8 links to each other, and connects the cathode output end OUT-of isolation type switch power PS.The electrode input end IN+ of isolation type switch power PS connects the positive pole of battery Cell4, and negative input IN-connects the negative pole of battery Cell1.
The invention has the beneficial effects as follows in charging and discharge process, by the mode of energy transfer any joint cell is carried out electric weight and replenish.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is schematic diagram of the present invention.
Among Fig. 1, Cell1, Cell2, Cell3, Cell4 are 4 joint rechargeable batteries of series connection.S1, S2, S3, S4, S5, S6, S7, S8, S9 are switches.PS is isolation type switch power, and IN+ is the electrode input end of PS, and IN-is the negative input of PS, and OUT+ is the cathode output end of PS, and OUT-is the cathode output end of PS.Input IN+ and IN-and output OUT+ and OUT-isolate fully.PS absorbs energy from whole battery group, from output OUT+ and OUT-output equalizing charge electric current.
Embodiment
Among Fig. 1, the negative pole of battery Cell1 connects switch S 5 in the series battery, anodal switch S 1 and the S6 of connecting, and the positive pole of battery Cell2 connects switch S 2 and S7, and the positive pole of battery Cell3 connects switch S 3 and S8, and the positive pole of battery Cell4 connects switch S 4.The other end of switch S 1, S2, S3, S4 links to each other, and connects switch S 9, and the other end of switch S 9 connects the cathode output end OUT+ of isolation type switch power PS.The other end of switch S 5, S6, S7, S8 links to each other, and connects the cathode output end OUT-of isolation type switch power PS.The electrode input end IN+ of isolation type switch power PS connects the positive pole of battery Cell4, and negative input IN-connects the negative pole of battery Cell1.
When battery Cell1 is carried out equalizing charge, connect switch S 1, S5 and S9, other switches remain open state, and isolation type switch power PS is, and battery Cell1 carries out equalizing charge.
When battery Cell2 is carried out equalizing charge, connect switch S 2, S6 and S9, other switches remain open state, and isolation type switch power PS is, and battery Cell2 carries out equalizing charge.
When battery Cell3 is carried out equalizing charge, connect switch S 3, S7 and S9, other switches remain open state, and isolation type switch power PS is, and battery Cell3 carries out equalizing charge.
When battery Cell4 is carried out equalizing charge, connect switch S 4, S8 and S9, other switches remain open state, and isolation type switch power PS is, and battery Cell4 carries out equalizing charge.
Claims (4)
1. one kind 4 is saved the serial connection charge circuit of battery pack balancing, it is characterized in that: the negative pole of battery Cell1 connects switch S 5 in the series battery, anodal switch S 1 and the S6 of connecting, the positive pole of battery Cell2 connects switch S 2 and S7, the positive pole of battery Cell3 connects switch S 3 sharp S8, and the positive pole of battery Cell4 connects switch S 4.
2. according to claim 14 save the serial connection charge circuit of battery pack balancing, it is characterized in that: the other end of switch S 1, S2, S3, S4 links to each other, and connects switch S 9, and the other end of switch S 9 connects the cathode output end OCT+ of isolation type switch power PS.
3. according to claim 14 save the serial connection charge circuit of battery pack balancing, it is characterized in that: the other end of switch S 5, S6, S7, S8 links to each other, and connects the cathode output end OUT-of isolation type switch power PS.
4. 4 joint serial connection charge circuit of battery pack balancing according to claim 1 is characterized in that: the positive pole of the electrode input end IN+ connection battery Cell4 of isolation type switch power PS, the negative pole of negative input IN-connection battery Cell1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100319465A CN103248081A (en) | 2012-02-14 | 2012-02-14 | Equalizing circuit for rechargeable battery pack comprising 4 batteries connected in series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100319465A CN103248081A (en) | 2012-02-14 | 2012-02-14 | Equalizing circuit for rechargeable battery pack comprising 4 batteries connected in series |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103248081A true CN103248081A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100319465A Pending CN103248081A (en) | 2012-02-14 | 2012-02-14 | Equalizing circuit for rechargeable battery pack comprising 4 batteries connected in series |
Country Status (1)
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| CN (1) | CN103248081A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259293A (en) * | 2012-02-16 | 2013-08-21 | 赵恩海 | Simple equalization circuit formed of six-serial-rechargeable-battery pack |
| CN103259294A (en) * | 2012-02-16 | 2013-08-21 | 赵恩海 | Simple equalization circuit of five-serial-rechargeable-batteries pack |
| CN107453452A (en) * | 2017-09-25 | 2017-12-08 | 启攀微电子（上海）有限公司 | A kind of more battery core serial lithium batteries based on load switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201066792Y (en) * | 2007-07-13 | 2008-05-28 | 福州高贝嵌入式技术有限公司 | Fully charging and discharging circuit for secondary battery unit |
| JP2008186804A (en) * | 2007-01-26 | 2008-08-14 | General Electric Co <Ge> | Cell balancing battery pack and method of balancing cell of battery |
| CN102111003A (en) * | 2011-02-21 | 2011-06-29 | 成都芯源系统有限公司 | Novel battery equalization circuit and adjusting method thereof |
| CN202424269U (en) * | 2012-02-14 | 2012-09-05 | 赵恩海 | 4-serially-connected rechargeable battery pack equalizing circuit |
-
2012
- 2012-02-14 CN CN2012100319465A patent/CN103248081A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008186804A (en) * | 2007-01-26 | 2008-08-14 | General Electric Co <Ge> | Cell balancing battery pack and method of balancing cell of battery |
| CN201066792Y (en) * | 2007-07-13 | 2008-05-28 | 福州高贝嵌入式技术有限公司 | Fully charging and discharging circuit for secondary battery unit |
| CN102111003A (en) * | 2011-02-21 | 2011-06-29 | 成都芯源系统有限公司 | Novel battery equalization circuit and adjusting method thereof |
| CN202424269U (en) * | 2012-02-14 | 2012-09-05 | 赵恩海 | 4-serially-connected rechargeable battery pack equalizing circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259293A (en) * | 2012-02-16 | 2013-08-21 | 赵恩海 | Simple equalization circuit formed of six-serial-rechargeable-battery pack |
| CN103259294A (en) * | 2012-02-16 | 2013-08-21 | 赵恩海 | Simple equalization circuit of five-serial-rechargeable-batteries pack |
| CN107453452A (en) * | 2017-09-25 | 2017-12-08 | 启攀微电子（上海）有限公司 | A kind of more battery core serial lithium batteries based on load switch |
| CN107453452B (en) * | 2017-09-25 | 2023-11-21 | 启攀微电子（上海）有限公司 | Multi-cell series lithium battery based on load switch |
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Application publication date: 20130814 |