CN201584468U - Device for controlling equalized-discharge of storage battery - Google Patents
Device for controlling equalized-discharge of storage battery Download PDFInfo
- Publication number
- CN201584468U CN201584468U CN2009202243835U CN200920224383U CN201584468U CN 201584468 U CN201584468 U CN 201584468U CN 2009202243835 U CN2009202243835 U CN 2009202243835U CN 200920224383 U CN200920224383 U CN 200920224383U CN 201584468 U CN201584468 U CN 201584468U
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- Prior art keywords
- discharge
- battery
- storage battery
- circuit
- discharge control
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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
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Abstract
The utility model relates to a device for controlling equalized-discharge of a storage battery, belonging to charge-discharge control devices of the storage battery. The technical scheme of the utility model is as follows: the device comprises a battery detection circuit, an electronic switching circuit, and a discharge control circuit. The device is characterized in that: a singlechip and a storage battery voltage detection unit are used for collecting the voltage data of a single battery in a series storage battery group in real time, judging the battery which has faster voltage sag, transmitting the control data to an input end of the electronic switching circuit, controlling the corresponding electronic switching circuit and discharge control circuit through an isolation opto-coupler; and the discharge control circuit is connected on each single battery. The device for controlling the equalized-discharge of the storage battery has the following advantages that the singlechip controls the work of the electronic switching circuit and the discharge control circuit by the pulse-width modulation mode, thus leading each single battery to participate in or be isolated from the discharge so as to modulate the discharge rate of the controlled battery and further achieve the purpose of equalized discharge.
Description
One, technical field
The utility model belongs to the accumulator cell charging and discharging control device.
Two, background technology
Storage battery is the major impetus source or the stand-by power supply of a lot of equipment, discharged in series is a storage battery using method commonly used, and for example the communication apparatus uninterrupted power supply has 8 to 20 storage battery series connection to use usually, 3 to 4 of electric bicycles are connected and used, electric automobile 8 to 16 series connection commonly used are used.In order to guarantee storage battery energy reliability service, to improve useful life, storage battery balanced discharge in the time of should as far as possible guaranteeing to be cascaded, but storage battery can't guarantee consistency in manufacture process, address this problem the method that adopts the balanced discharge control circuit, each the cell balanced discharge in the feasible series connection batteries.General balanced discharge control circuit adopts the additional mode that consumes circuit, promptly at the two ends of battery power consumption device in parallel, to the battery of voltage delay in the discharge process except that participating in regular picture, the extra power consumption device of parallel connection of giving again discharges, and reaches the purpose of series connection batteries equilibrium operating like this.This method so cause the storage battery waste of electric energy, does not have practical value owing to used the power consumption device.
Three, summary of the invention
The purpose of this utility model is a kind of electronic controller with pulse width modulation mode control storage battery balanced discharge of design.
The technical solution of the utility model is: the utility model comprises battery detection circuit, electronics commutation circuit and charge/discharge control circuit, it is characterized in that: the voltage data of gathering cell in the series connection batteries by single-chip microcomputer and battery tension detecting unit in real time, judge cell voltage and fall fast battery, control data is delivered to electronics commutation circuit input, control corresponding electronics commutation circuit and charge/discharge control circuit by isolating optocoupler, charge/discharge control circuit is connected on each cell.
The beneficial effects of the utility model: single-chip microcomputer is with pulse width modulation mode control electronics commutation circuit and charge/discharge control circuit work, each cell is participated in or breaks away from discharge, regulating by the discharge rate of control battery, thereby reaches the purpose of balanced discharge.
Four, description of drawings
Five, embodiment
Single-chip microcomputer U1 uses model to be ATmega8, gather the voltage data of cell in the series connection batteries in real time by battery tension detecting unit U3, judge cell voltage and fall fast battery, form control word and deliver to control unit U2 by the I2C bus, control unit U2 uses model to be 74HC595, the output of control unit U2 connects the input of the commutation circuit of isolating optocoupler T1 to Tn and subsidiary component composition, the output of commutation circuit connects corresponding Q1, D1 to Qn, the grid and the source class of MOSFET pipe in the charge/discharge control circuit that Dn forms, the corresponding battery of control participates in or the disengaging discharge.Concrete control procedure is: during operate as normal, the MOSFET pipe Q1 to Qn that is connected on storage battery one end all is in conducting state, finishes the normal discharging function of batteries.When single-chip microcomputer U1 detects certain battery tension and falls above normal value by U3, promptly this position is become high level by control unit U2 output, respective element output in corresponding isolation optocoupler T1-Tn, the control MOSFET pipe Q that makes electric voltage dropping surpass the storage battery correspondence of normal value turn-offs, at this moment this battery breaks away from the discharge work of batteries, and electric current flows through batteries by the power diode D of parallel connection.Single-chip microcomputer U1 controls the work of U2 with PWM (pulse-width modulation) mode, the PWM pulsewidth is arranged on Millisecond, duty ratio is set at 5%-10%, the actual proof of using, work under this Control Parameter, the batteries of PWM control does not have significant change with batteries to the effect of motor discharge output with direct to the output effect of motor discharge, still, the Be Controlled battery discharge rate reduces 4%-8%, can reach the purpose of balanced control.
Claims (1)
1. storage battery balanced discharge control device, comprise battery detection circuit, electronics commutation circuit and charge/discharge control circuit, it is characterized in that: the voltage data of gathering cell in the series connection batteries by single-chip microcomputer (U1) and battery tension detecting unit (U3) in real time, judge cell voltage and fall fast battery, control data is delivered to electronics commutation circuit (U2) input, by isolating optocoupler (T) corresponding electronics commutation circuit of control and charge/discharge control circuit, charge/discharge control circuit is connected on each cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202243835U CN201584468U (en) | 2009-10-15 | 2009-10-15 | Device for controlling equalized-discharge of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202243835U CN201584468U (en) | 2009-10-15 | 2009-10-15 | Device for controlling equalized-discharge of storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584468U true CN201584468U (en) | 2010-09-15 |
Family
ID=42726480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202243835U Expired - Fee Related CN201584468U (en) | 2009-10-15 | 2009-10-15 | Device for controlling equalized-discharge of storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584468U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231554A (en) * | 2011-07-06 | 2011-11-02 | 天津市松正电动汽车技术股份有限公司 | Fully compatible balancing apparatus and method of power battery |
| CN107069882A (en) * | 2017-05-09 | 2017-08-18 | 四川中蓉科技有限公司 | A kind of equalizing charge of battery judges control circuit |
| CN108336796A (en) * | 2018-03-30 | 2018-07-27 | 北京国能电池科技股份有限公司 | Backboard and battery management system |
-
2009
- 2009-10-15 CN CN2009202243835U patent/CN201584468U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231554A (en) * | 2011-07-06 | 2011-11-02 | 天津市松正电动汽车技术股份有限公司 | Fully compatible balancing apparatus and method of power battery |
| CN102231554B (en) * | 2011-07-06 | 2016-09-14 | 天津市松正电动汽车技术股份有限公司 | A kind of complete compatible electrokinetic cell balancer and method |
| CN107069882A (en) * | 2017-05-09 | 2017-08-18 | 四川中蓉科技有限公司 | A kind of equalizing charge of battery judges control circuit |
| CN107069882B (en) * | 2017-05-09 | 2019-12-17 | 四川中蓉科技有限公司 | Battery equalizing charge judgment control circuit |
| CN108336796A (en) * | 2018-03-30 | 2018-07-27 | 北京国能电池科技股份有限公司 | Backboard and battery management system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20131015 |