CN202421470U - Single battery voltage measuring circuit in arbitrary-string battery pack - Google Patents
Single battery voltage measuring circuit in arbitrary-string battery pack Download PDFInfo
- Publication number
- CN202421470U CN202421470U CN2011205414043U CN201120541404U CN202421470U CN 202421470 U CN202421470 U CN 202421470U CN 2011205414043 U CN2011205414043 U CN 2011205414043U CN 201120541404 U CN201120541404 U CN 201120541404U CN 202421470 U CN202421470 U CN 202421470U
- Authority
- CN
- China
- Prior art keywords
- switch
- cell
- battery
- voltage
- flies
- 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.)
- Expired - Fee Related
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Provided is a single battery voltage measuring circuit in an arbitrary-string battery pack. In the circuit, each single battery in the series connection battery pack charges one flying capacitor through a switch network. The switch network is opened when voltage of the flying capacitor is equal to that of the battery, and then voltage of each single battery can be obtained by measuring the voltage of the flying capacitor.
Description
Technical field
The utility model relates to a kind of circuit of measuring each monomer battery voltage in any joint series battery.This circuit flies electric capacity through a switching network to one respectively with each cell in the series battery and charges, and after flying capacitance voltage and cell voltage equates, the cut-off switch network flies capacitance voltage through measurement then and obtains each monomer battery voltage value.
Background technology
Rechargeable battery like lithium battery etc., when series connection is used in groups, need be done monitoring to each monomer battery voltage.For a large amount of series connected battery groups, generally adopt special IC perhaps with flying capacitance measurement.Though special IC is easy to use, cost is than higher.Traditional capacitance measurement method that flies needs a large amount of switches, also has the higher shortcoming of cost.
Summary of the invention
In order to overcome the existing high shortcoming of cost that each monomer battery voltage circuit of electric battery exists of measuring, the utility model provides a kind of improved capacitance measurement circuit that flies, and is used for measuring each monomer battery voltage in any joint series connected battery group.
The utility model solves the technical scheme that its technical matters adopted: if the series connection joint number is an even number; Battery Cell (1), Cell (3) in the series battery ... The positive pole of Cell (2n-1) connects switch S (1), S (3) respectively ... S (2n-1); Battery Cell (2) ... The positive pole of Cell (2n-2), Cell (2n) connects switch S (2) respectively ... S (2n-2), S (2n); Wherein n represents any natural number; The other end of switch S E0 and SO0 is connected and flies capacitor C and switch S MN, and the other end of switch S O1 and SE1 is connected the other end and the switch S MP that flies capacitor C.If the series connection joint number is an odd number; Battery Cell (1), Cell (3) in the series battery ... Cell (2n-1); The positive pole of Cell (2n+1) connects switch S (1), S (3) respectively ... S (2n-1), S (2n+1); Battery Cell (2) ... The positive pole of Cell (2n) connects switch S (2) respectively ... S (2n), the other end of switch S E0 and SO0 are connected and fly capacitor C and switch S MN, and the other end of switch S O1 and SE1 is connected the other end and the switch S MP that flies capacitor C.The negative pole of battery Cell (1) is connected with switch S (0).If the series connection joint number is an even number, switch S (0), S (2) ... The other end of S (2n-2), S (2n) links to each other, and connects switch S E0 and SE1, switch S (1), S (3) ... The other end of S (2n-1) links to each other, and connects switch S O0 and SO1.If the series connection joint number is an odd number, switch S (0), S (2) ... The other end of S (2n) links to each other, and connects switch S E0 and SE1, switch S (1), S (3) ... The other end of S (2n-1), S (2n+1) links to each other, and connects switch S O0 and SO1.
The beneficial effect of the utility model is that circuit structure is simple, cheap.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 and Fig. 2 are the schematic diagrams of the utility model.
Among Fig. 1 and Fig. 2, Cell (1), Cell (2), Cell (3) ... Cell (2n-2), Cell (2n-1), Cell (2n), Cell (2n+1) are the cells of series connection, their series batteries that is composed in series successively as shown in the figure.S (0), S (1), S (2), S (3) ... S (2n-2), S (2n-1), S (2n), S (2n+1), SO0, SO1, SE0, SE1, SPS, SMN and SMP are switches, and C flies electric capacity, 1. flies the capacitance cathode signal output part, 2. flies electric capacity negative signal output terminal.Dotted line is represented abridged cell, switch and connecting line thereof among the figure.
Embodiment
What Fig. 1 showed is the working method when the series connection even number saves cell in the electric battery.Among Fig. 1, battery Cell (1), Cell (3) in the series battery ... The positive pole of Cell (2n-1) connects switch S (1), S (3) respectively ... S (2n-1), wherein n represents any natural number.Battery Cell (2) in the series battery ... The positive pole of Cell (2n-2), Cell (2n) connects switch S (2) respectively ... S (2n-2), S (2n).The negative pole of battery Cell (1) is connected with switch S (0).Switch S (0), S (2) ... The other end of S (2n-2), S (2n) links to each other, and connects switch S E0 and SE1.Switch S (1), S (3) ... The other end of S (2n-1) links to each other, and connects switch S O0 and SO1.The other end of switch S E0 and SO0 is connected and flies capacitor C and switch S MN.The other end of switch S O1 and SE1 is connected the other end and the switch S MP that flies capacitor C.The other end of switch S MP and SMN is respectively positive pole and the negative signal output terminal that flies electric capacity.Dotted line is represented abridged cell, switch and connecting line thereof among the figure.
When measuring battery Cell (1), at first connect switch S (1), S (0), SO1 and SE0, other switches keep off state, and battery Cell (1) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (1).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cell (1) from 1. and 2. measuring.
When measuring battery Cell (2), at first connect switch S (2), S (1), SE1 and SO0, other switches keep off state, and battery Cell (2) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (2).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cel l (2) from 1. and 2. measuring.
When measuring battery Cell (3), at first connect switch S (3), S (2), SO1 and SE0, other switches keep off state, and battery Cell (3) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (3).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cell (3) from 1. and 2. measuring.
When measuring battery Cell (2n-1), at first connect switch S (2n-1), S (2n-2), SO1 and SE0, other switches keep off state, and battery Cell (2n-1) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (2n-1).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cell (2n-1) from 1. and 2. measuring.
When measuring battery Cell (2n), at first connect switch S (2n), S (2n-1), SE1 and SO0, other switches keep off state, and battery Cell (2n) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (2n).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cell (2n) from 1. and 2. measuring.
For the metering system that is connected on the battery between Cell (3) and the Cell (2n-1), can analogize according to battery Cell (2n-1) and Cell (2n) are carried out measuring mode.
What Fig. 2 showed is the working method when the series connection odd number saves cell in the electric battery.Among Fig. 2, battery Cell (1), Cell (3) in the series battery ... The positive pole of Cell (2n-1), Cell (2n+1) connects switch S (1), S (3) respectively ... S (2n-1), S (2n+1), wherein n represents any natural number.Battery Cell (2) in the series battery ... The positive pole of Cell (2n) connects switch S (2) respectively ... S (2n).The negative pole of battery Cell (1) is connected with switch S (0).Switch S (0), S (2) ... The other end of S (2n) links to each other, and connects switch S E0 and SE1.Switch S (1), S (3) ... The other end of S (2n-1), S (2n+1) links to each other, and connects switch S O0 and SO1.The other end of switch S E0 and SO0 is connected and flies capacitor C and switch S MN.The other end of switch S O1 and SE1 is connected the other end and the switch S MP that flies capacitor C.The other end of switch S MP and SMN is respectively positive pole and the negative signal output terminal that flies electric capacity.Dotted line is represented abridged cell, switch and connecting line thereof among the figure.
When measuring battery Cell (1), at first connect switch S (1), S (0), SO1 and SE0, other switches keep off state, and battery Cell (1) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (1).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cell (1) from 1. and 2. measuring.
When measuring battery Cell (2), at first connect switch S (2), S (1), SE1 and SO0, other switches keep off state, and battery Cell (2) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (2).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cell (2) from 1. and 2. measuring.
When measuring battery Cell (3), at first connect switch S (3), S (2), SO1 and SE0, other switches keep off state, and battery Cell (3) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (3).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cell (3) from 1. and 2. measuring.
When measuring battery Cell (2n), at first connect switch S (2n), S (2n-1), SE1 and SO0, other switches keep off state, and battery Cell (2n) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (2n).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cell (2n) from 1. and 2. measuring.
When measuring battery Cell (2n+1), at first connect switch S (2n+1), S (2n), SO1 and SE0, other switches keep off state, and battery Cell (2n+1) gives and flies the capacitor C charging, and the voltage that flies capacitor C is equated with battery Cell (2n+1).Turn-off all switches then, the voltage that flies capacitor C remains unchanged.At last, connect switch SMP and SMN, fly capacitance voltage, the i.e. voltage of battery Cell (2n+1) from 1. and 2. measuring.
For the metering system that is connected on the battery between Cell (3) and the Cell (2n), can analogize according to battery Cell (2n-1) and Cell (2n) are carried out measuring mode.
Claims (5)
1. any monomer battery voltage measurement circuit in the string electric battery; It is characterized in that: if the series connection joint number is an even number; Battery Cell (1), Cell (3) in the series battery ... The positive pole of Cell (2n-1) connects switch S (1), S (3) respectively ... S (2n-1); Battery Cell (2) ... The positive pole of Cell (2n-2), Cell (2n) connects switch S (2) respectively ... S (2n-2), S (2n); Wherein n represents any natural number, and the other end of switch S E0 and SO0 is connected and flies capacitor C and switch S MN, and the other end of switch S O1 and SE1 is connected the other end and the switch S MP that flies capacitor C.
2. monomer battery voltage measurement circuit in any string electric battery according to claim 1; It is characterized in that: if the series connection joint number is an odd number; Battery Cell (1), Cell (3) in the series battery ... Cell (2n-1); The positive pole of Cell (2n+1) connects switch S (1), S (3) respectively ... S (2n-1), S (2n+1); Battery Cell (2) ... The positive pole of Cell (2n) connects switch S (2) respectively ... S (2n), the other end of switch S E0 and SO0 are connected and fly capacitor C and switch S MN, and the other end of switch S O1 and SE1 is connected the other end and the switch S MP that flies capacitor C.
3. monomer battery voltage measurement circuit in any string electric battery according to claim 1 is characterized in that: the negative pole of battery Cell (1) is connected with switch S (0).
4. monomer battery voltage measurement circuit in any string electric battery according to claim 1; It is characterized in that: if the series connection joint number is an even number; Switch S (0), S (2) ... The other end of S (2n-2), S (2n) links to each other; And connection switch S E0 and SE1, switch S (1), S (3) ... The other end of S (2n-1) links to each other, and connects switch S O0 and SO1.
5. monomer battery voltage measurement circuit in any string electric battery according to claim 1; It is characterized in that: if the series connection joint number is an odd number; Switch S (0), S (2) ... The other end of S (2n) links to each other; And connection switch S E0 and SE1, switch S (1), S (3) ... The other end of S (2n-1), S (2n+1) links to each other, and connects switch S O0 and SO1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205414043U CN202421470U (en) | 2011-12-22 | 2011-12-22 | Single battery voltage measuring circuit in arbitrary-string battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205414043U CN202421470U (en) | 2011-12-22 | 2011-12-22 | Single battery voltage measuring circuit in arbitrary-string battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421470U true CN202421470U (en) | 2012-09-05 |
Family
ID=46746222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205414043U Expired - Fee Related CN202421470U (en) | 2011-12-22 | 2011-12-22 | Single battery voltage measuring circuit in arbitrary-string battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421470U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941074A (en) * | 2013-01-17 | 2014-07-23 | 赵恩海 | Circuit used for accurately measuring voltage of each single battery in arbitrary cascade battery pack |
| CN107664726A (en) * | 2016-07-28 | 2018-02-06 | 盐城市惠众新能源科技有限公司 | The control method of switching network detecting system and switching network detecting system |
-
2011
- 2011-12-22 CN CN2011205414043U patent/CN202421470U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941074A (en) * | 2013-01-17 | 2014-07-23 | 赵恩海 | Circuit used for accurately measuring voltage of each single battery in arbitrary cascade battery pack |
| CN107664726A (en) * | 2016-07-28 | 2018-02-06 | 盐城市惠众新能源科技有限公司 | The control method of switching network detecting system and switching network detecting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202189131U (en) | Circuit for measuring voltage of 16 cells in serially-connected cell group | |
| CN203688636U (en) | System for detecting voltage of single battery unit of series battery pack | |
| CN201181309Y (en) | Differential voltage detection type accumulator battery electric voltage monitoring device | |
| CN104734260A (en) | Power battery equalizing charge method and system | |
| CN202435082U (en) | Active equalization circuit for battery pack | |
| CN202421470U (en) | Single battery voltage measuring circuit in arbitrary-string battery pack | |
| CN103176131A (en) | Single battery voltage measurement circuit in any one battery in series-connection battery pack | |
| CN202794291U (en) | Simple circuit for measuring single cell voltages of series battery containing any number of cells | |
| CN202975102U (en) | Electric bicycle charging timing and charging apparatus | |
| CN202548190U (en) | Circuit for simply measuring voltages of each single battery in 16 battery packs | |
| CN203813457U (en) | Battery energy equalization circuit | |
| CN202424268U (en) | Equalizing circuit for 6-section serial rechargeable battery pack | |
| CN203800651U (en) | Electric automobile lithium iron phosphate battery pack energy balance control system | |
| CN202471924U (en) | A circuit for measuring the voltage of individual battery in a battery pack with twelve batteries in series with one another | |
| CN202421463U (en) | Circuit for measuring voltages of 13 serially connected battery packs | |
| CN102355017A (en) | Lossless power battery equalizer | |
| CN203164281U (en) | Circuit for accurately measuring voltage of each single battery in battery pack comprising any number of batteries connected in series | |
| CN102832654A (en) | Active equalizer circuit of cell pack | |
| CN103248081A (en) | Equalizing circuit for rechargeable battery pack comprising 4 batteries connected in series | |
| CN202548181U (en) | Circuit for measuring voltage of single battery in six-battery serially connected group | |
| CN103972946A (en) | Battery energy balance circuit and method for applying same | |
| CN203368430U (en) | Novel solid-state switch network circuit | |
| CN103487628A (en) | Simple circuit for measuring voltage of each single cell in series-connected battery pack containing any number of cells | |
| CN202383268U (en) | Circuit for measuring single battery voltage in battery pack having 14 series-connected batteries | |
| CN202424270U (en) | Simple equalizing circuit for 5-section serial rechargeable battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Enhai Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhao Enhai Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20131222 |