CN2821996Y - Output balance device of rechargeable accumulator unit - Google Patents
Output balance device of rechargeable accumulator unit Download PDFInfo
- Publication number
- CN2821996Y CN2821996Y CN 200520075295 CN200520075295U CN2821996Y CN 2821996 Y CN2821996 Y CN 2821996Y CN 200520075295 CN200520075295 CN 200520075295 CN 200520075295 U CN200520075295 U CN 200520075295U CN 2821996 Y CN2821996 Y CN 2821996Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- accumulator unit
- module
- width modulation
- switch transformer
- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an output balance device of a rechargeable accumulator unit, which comprises a final voltage detecting circuit which is connected with an electro-optic coupling circuit connected with a pulse width modulation control circuit, the pulse width modulation control circuit is connected with a power-driven circuit which is connected with a switch transformer, and the switch transformer is connected with a rectifying filter circuit. The circuits are sealed in a module, and a wiring pole connected with the accumulator unit and a single accumulator is arranged on the module. The utility model can effectively prevent the whole unit of accumulators from discarding in advance because of performance difference of the single accumulators, and can prolong the service life of the accumulator unit.
Description
[technical field]
The utility model relates to a kind of servicing unit of rechargeable battery group, is a kind of balance of voltage element.
[background technology]
For the rechargeable battery group, because cell can form the difference of performances such as capacity, internal resistance in process of production, the performance difference of cell is tending towards obvious in battery pack, the battery that indivedual or several capacity are on the low side is meeting formation overdischarge phenomenon in various degree in the battery power discharge process, goes round and begins again and will cause battery pack to damage or the lost of life.
[summary of the invention]
The purpose of this utility model is to provide a kind of output balancer for rechargeable accumulator unit that can prevent effectively that battery pack from causing whole Battery pack to be scrapped in advance because of the cell performance difference.
A kind of output balancer for rechargeable accumulator unit, comprise the final pressure testing circuit, the final pressure testing circuit connects the photoelectricity coupling circuit, connect control circuit for pulse-width modulation behind the photoelectricity coupling circuit, control circuit for pulse-width modulation connects power driving circuit, and power driving circuit is connected with switch transformer, and switch transformer connects current rectifying and wave filtering circuit, above-mentioned each circuit package in a module, the wiring utmost point that dress is connected with battery pack and cell on the module.
Have fixing hole on the module.
The utility model has the advantages that: when battery power discharge; when being lower than voltage protection point as monomer battery voltage; balancer work; make cell voltage continually and steadily on voltage protection point; and all the other batteries as usual discharge all reach the protection point voltage until all cell voltages; thereby can prevent effectively that battery pack from scrapping in advance because of the cell performance difference causes whole Battery pack, prolong the useful life of battery pack.
[description of drawings]
Below in conjunction with drawings and Examples the utility model patent is further specified.
Fig. 1 is the operation principle block diagram of an embodiment of the utility model.
Fig. 2 is the modular structure schematic diagram of Fig. 1 embodiment.
Fig. 3 is the physical circuit figure of Fig. 1 embodiment.
When being the utility model use, Fig. 4 is connected block diagram with the rechargeable battery group.
[embodiment]
A kind of output balancer for rechargeable accumulator unit, comprise final pressure testing circuit 1, final pressure testing circuit 1 connects photoelectricity coupling circuit 2, connect pulse-width modulation (PWM) control circuit 3 behind the photoelectricity coupling circuit 2, control circuit for pulse-width modulation 3 connects power driving circuit 4, and power driving circuit 4 is connected with switch transformer 5 (T2), and switch transformer 5 connects current rectifying and wave filtering circuit 6, above-mentioned each circuit package in a module 7, the wiring utmost point 8 that dress is connected with battery pack and cell on the module 7.Have fixing hole 9 on the module 7.
Final pressure testing circuit 1 comprises integrated package U2 (MAX1676), resistance R 4, R7, R14, R15, capacitor C 5, C4, diode D1, filter L2.Photoelectricity coupling circuit 2 comprises resistance R 5, optocoupler T1.Pulse-width modulation (PWM) control circuit 3 comprises integrated package U1 (UC3842), resistance R 1, R2, R3, R6, R10, R11, R12, capacitor C 1, C2, C3, C8, diode D2.Power driving circuit 4 comprises metal-oxide-semiconductor Q1, resistance R 8, R9, R13, capacitor C 7, C9, diode D4, D5.Current rectifying and wave filtering circuit 6 comprises diode D3, filter L1.
The state that each cell 11 of a plurality of balancers 10 and rechargeable battery group was connected when Fig. 4 had represented the utility model use.
Claims (2)
1, a kind of output balancer for rechargeable accumulator unit, it is characterized in that: comprise the final pressure testing circuit, the final pressure testing circuit connects the photoelectricity coupling circuit, connect control circuit for pulse-width modulation behind the photoelectricity coupling circuit, control circuit for pulse-width modulation connects power driving circuit, and power driving circuit is connected with switch transformer, and switch transformer connects current rectifying and wave filtering circuit, above-mentioned each circuit package in a module, the wiring utmost point that dress is connected with battery pack and cell on the module.
2, output balancer for rechargeable accumulator unit according to claim 1 is characterized in that: have fixing hole on the module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520075295 CN2821996Y (en) | 2005-09-07 | 2005-09-07 | Output balance device of rechargeable accumulator unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520075295 CN2821996Y (en) | 2005-09-07 | 2005-09-07 | Output balance device of rechargeable accumulator unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821996Y true CN2821996Y (en) | 2006-09-27 |
Family
ID=37018547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520075295 Expired - Fee Related CN2821996Y (en) | 2005-09-07 | 2005-09-07 | Output balance device of rechargeable accumulator unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821996Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010048849A1 (en) * | 2008-10-31 | 2010-05-06 | Byd Company Limited | A device for equalizing voltage of a battery pack |
-
2005
- 2005-09-07 CN CN 200520075295 patent/CN2821996Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010048849A1 (en) * | 2008-10-31 | 2010-05-06 | Byd Company Limited | A device for equalizing voltage of a battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |