CN202435094U - Control system for balanced discharge of storage battery - Google Patents
Control system for balanced discharge of storage battery Download PDFInfo
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- CN202435094U CN202435094U CN2012200210190U CN201220021019U CN202435094U CN 202435094 U CN202435094 U CN 202435094U CN 2012200210190 U CN2012200210190 U CN 2012200210190U CN 201220021019 U CN201220021019 U CN 201220021019U CN 202435094 U CN202435094 U CN 202435094U
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A control system for balanced discharge of a storage battery comprises a discharge positive electrode, a discharge negative electrode, a discharge module and a CPU (central processing unit) controller. The discharge positive electrode and the discharge negative electrode are connected with a plurality of groups of single batteries connected in series, the single batteries connected in series are connected with a storage battery discharge load through load switches, the CPU controller is provided with communication cables individually in data transmission with a control center, each communication cable is connected with a line communication cable, the discharge module comprises a battery voltage detection unit, the line communication cable is connected with a discharge controller comprising a voltage parameter calculation unit and a discharge control unit, the voltage parameter calculation unit is used for calculating real-time voltage parameters of each single battery according to data of the battery voltage detection unit, and the discharge control unit is used for transmitting a shutoff instruction to the load switches when the voltage of a certain single battery is lower than a preset voltage value. The control system for balanced discharge of the storage battery is simpler in structure, lower in cost and fine in applicability.
Description
Technical field
The utility model relates to batteries and discharges and recharges technology, especially a kind of storage battery balanced discharge control system.
Background technology
In order to reach the useful life that prolongs batteries; Discharge and recharge industry in batteries and generally use the equalizing charge pattern; Charging voltage, charging current and the temperature of guaranteeing every cell all can be at the range of safety operation of storage battery; Guarantee the storage battery full charge and don't can occur overcharging phenomenon and temperature control phenomenon, guarantee the useful life and the safe and reliable operation of batteries.But conventional equalizing charge mode wiring is complicated, and cost is high, and the use of storage battery has been applied to each field of our life, and good equalizing charge mode can not adapt to promotion and application in enormous quantities.The discharge under-voltage protection of batteries, generally with the total voltage size of all series connection as under-voltage protection voltage.
Summary of the invention
For high, the relatively poor deficiency of applicability of complex structure, cost that overcomes existing accumulator cell charging and discharging technology, the storage battery balanced discharge control system that the utility model provides a kind of simplified structure, reduces cost, applicability is good.
The utility model solves the technical scheme that its technical problem adopted:
A kind of storage battery balanced discharge control system; Comprise the anodal and discharge negative pole of discharge; Said discharge is anodal to be connected with many groups cell of series connection respectively with the discharge negative pole, and many groups cell of said series connection is connected with the battery discharging load through load switch, and said control system also comprises discharge module and cpu controller; Said cpu controller is provided with single and connection control centre's transfer of data, and every connection all is connected with Integrated Service Digital Network news line; Said discharge module comprises the battery voltage detection unit; Said battery voltage detection unit is connected with the voltage detecting branch road; Said voltage detecting branch road comprises resistance R 1 and resistance R 2; Said voltage detecting branch road is parallelly connected with cell, and the connected node of said resistance R 1 and R2 is connected with said battery voltage detection unit; Said Integrated Service Digital Network news line is connected with discharge controller, and said discharge controller comprises: in order to the voltage parameter computing unit according to the real-time voltage parameter of each cell of data computation of battery voltage detection unit; Send the discharge control unit that turn-offs instruction to load switch when being lower than the predeterminated voltage value in order to voltage when a certain cell.
Further, said discharge module also comprises temperature detecting unit, mounting temperature sensor on the cell, and said temperature sensor is connected with temperature detecting unit; Said discharge controller comprises: in order to the working temperature computing unit according to the real-time working temperature of each monomer of data computation of temperature detecting unit; Temperature in order to when a certain cell reaches the preset threshold value temperature, sends alarm command or sends the temperature real-time monitoring module of the discharging current instruction that reduces the battery discharging load.
Further again, said discharge controller also comprises: the ambient temperature computing unit that powers on of the temperature of each cell when powering in order to preservation.
Further, said discharge controller also comprises: in order to send Handshake Protocol to discharge module, through the Energy Saving Control unit of clock start signal accessory power supply.
Said discharge switch is connected with current-limiting resistance.
The technical conceive of the utility model is: send Handshake Protocol to " discharge module " earlier, can send continuously repeatedly, purpose is to let " discharge module " to start accessory power supply earlier; Because when connection has only the CLK of generation signal; The accessory power supply of " discharge module " just can be worked, and " discharge module " is in power save mode like this, and Handshake Protocol can; Charger is just just known the IP address of " discharge module "; Make things convenient for next step control, can certainly the time debug cooperating of charger and " discharge module ", directly write the IP address in the charger in assembling.
Before the discharge behind the voltage and temperature of first cycle detection cell, and in the control system of record charger, as the ambient temperature and the starting voltage of battery.
Start the battery discharging load of discharge controller; The voltage and the temperature of simultaneously continuous cycle detection cell; And through calculating, if a certain monomer voltage just stops discharge after being lower than a predefined voltage Vx, and the user of announcement has had a certain batteries to reach protection voltage; Discharge can not be continued again, otherwise the battery over-discharge phenomenon can be occurred.
Because it is normal phenomenon that series battery discharge has difference, what have has only a little that difference allows, thus in discharge process the cell voltage of each joint of detection; If find to have batteries discharge near crossing when putting protection voltage, and other a few batteries voltage phase difference is bigger, just reports to the police and tells the user; If difference is little; In predefined allowed band, just do not report to the police, when some batteries reach the protection point, just cut off discharge load, thereby protect batteries effectively in time.
Through detecting the temperature (actual work temperature of battery) of battery; If reach that predefined protection temperature is just reported to the police and reduce the discharging current of load by predefined current protection scheme; Thereby protection battery; Should stop discharge immediately, protection battery, thereby the useful life of improving battery if the cell temperature is too high when reaching capacity set temperature value.
The beneficial effect of the utility model mainly shows: simplified structure, reduce cost, applicability is good.
Description of drawings
Fig. 1 is the theory diagram of storage battery balanced discharge control system.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1; A kind of storage battery balanced discharge control system, comprise discharge anodal with the discharge negative pole, said discharge is anodal to be connected with many groups cell of connecting respectively with the discharge negative pole; Many groups cell of said series connection is connected with the battery discharging load through load switch; Said control system also comprises discharge module and cpu controller, and said cpu controller is provided with single and connection control centre's transfer of data, and every connection all is connected with Integrated Service Digital Network news line; Said discharge module comprises the battery voltage detection unit; Said battery voltage detection unit is connected with the voltage detecting branch road; Said voltage detecting branch road comprises resistance R 1 and resistance R 2; Said voltage detecting branch road is parallelly connected with cell, and the connected node of said resistance R 1 and R2 is connected with said battery voltage detection unit; Said Integrated Service Digital Network news line is connected with discharge controller, and said discharge controller comprises: in order to the voltage parameter computing unit according to the real-time voltage parameter of each cell of data computation of battery voltage detection unit; Send the discharge control unit that turn-offs instruction to load switch when being lower than the predeterminated voltage value in order to voltage when a certain cell.
Said discharge module also comprises temperature detecting unit, mounting temperature sensor on the cell, and said temperature sensor is connected with temperature detecting unit; Said discharge controller comprises: in order to the working temperature computing unit according to the real-time working temperature of each monomer of data computation of temperature detecting unit; Temperature in order to when a certain cell reaches the preset threshold value temperature, sends alarm command or sends the temperature real-time monitoring module of the discharging current instruction that reduces the battery discharging load.
Said discharge controller also comprises: the ambient temperature computing unit that powers on of the temperature of each cell when powering in order to preservation.
Said discharge controller also comprises: in order to send Handshake Protocol to discharge module, through the Energy Saving Control unit of clock start signal accessory power supply.Said discharge switch K1 connects with current-limiting resistance RS.
In the present embodiment; Use " discharge module " voltage and temperature detecting function; " discharge module " share a connection, and the CPU power supply of " discharge module " is energy-conservation in order to accomplish; Can make just has accessory power supply when having only communication that the CLK signal is arranged, the electric energy of battery consumption group not when system does not work like this
In the batteries, detect the cell voltage of each joint in the discharge process, if find to have batteries discharge near crossing when putting protection voltage; And other a few batteries voltage phase difference is bigger; Just report to the police and tell the user,, in predefined allowed band, just do not report to the police if difference is little; When some batteries reach the protection point, just cut off discharge load, thereby protect batteries effectively in time.
Through detecting the temperature (actual work temperature of battery) of battery; If reach that predefined protection temperature is just reported to the police and reduce the discharging current of load by predefined current protection scheme; Thereby protection battery; Should stop discharge immediately, protection battery, thereby the useful life of improving battery if the cell temperature is too high when reaching capacity set temperature value.
Guarantee in the series battery that every batteries all just in time is put into actual can't the realization of protection point (balanced discharge); We are as the discharge prevention standard with cell; Cooperate the monomer battery voltage sampling simultaneously; Can remind the difference of user's battery, let the user in time remove to change the big battery cell of difference, thus the battery cell that protects.
Claims (5)
1. storage battery balanced discharge control system; Comprise the anodal and discharge negative pole of discharge; Said discharge is anodal to be connected with many groups cell of series connection respectively with the discharge negative pole, and many groups cell of said series connection is connected with the battery discharging load through load switch, and it is characterized in that: said control system also comprises discharge module and cpu controller; Said cpu controller is provided with single and connection control centre's transfer of data, and every connection all is connected with Integrated Service Digital Network news line; Said discharge module comprises the battery voltage detection unit; Said battery voltage detection unit is connected with the voltage detecting branch road; Said voltage detecting branch road comprises resistance R 1 and resistance R 2; Said voltage detecting branch road is parallelly connected with cell, and the connected node of said resistance R 1 and R2 is connected with said battery voltage detection unit; Said Integrated Service Digital Network news line is connected with discharge controller, and said discharge controller comprises: in order to the voltage parameter computing unit according to the real-time voltage parameter of each cell of data computation of battery voltage detection unit; Send the discharge control unit that turn-offs instruction to load switch when being lower than the predeterminated voltage value in order to voltage when a certain cell.
2. storage battery balanced discharge control as claimed in claim 1 system, it is characterized in that: said discharge module also comprises temperature detecting unit, mounting temperature sensor on the cell, said temperature sensor is connected with temperature detecting unit; Said discharge controller comprises: in order to the working temperature computing unit according to the real-time working temperature of each monomer of data computation of temperature detecting unit; In order to reach the preset threshold value temperature when the temperature of a certain cell, send alarm command or send reduce the battery discharging load the temperature real-time monitoring module of discharging current instruction.
3. according to claim 1 or claim 2 storage battery balanced discharge control system, it is characterized in that: said discharge controller also comprises: the ambient temperature computing unit that powers on of the temperature of each cell when powering in order to preservation.
4. according to claim 1 or claim 2 storage battery balanced discharge control system, it is characterized in that: said discharge controller also comprises: in order to send Handshake Protocol to discharge module, through the Energy Saving Control unit of clock start signal accessory power supply.
5. according to claim 1 or claim 2 storage battery balanced discharge control system, it is characterized in that: said discharge switch is connected with current-limiting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200210190U CN202435094U (en) | 2012-01-17 | 2012-01-17 | Control system for balanced discharge of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200210190U CN202435094U (en) | 2012-01-17 | 2012-01-17 | Control system for balanced discharge of storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202435094U true CN202435094U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200210190U Expired - Fee Related CN202435094U (en) | 2012-01-17 | 2012-01-17 | Control system for balanced discharge of storage battery |
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| Country | Link |
|---|---|
| CN (1) | CN202435094U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140976A (en) * | 2014-06-09 | 2015-12-09 | 深圳华粤宝电池有限公司 | Lithium ion power battery group equalization discharging system |
| CN110741528A (en) * | 2018-12-21 | 2020-01-31 | Oppo广东移动通信有限公司 | Battery power supply circuit, equipment to be charged and charging control method |
-
2012
- 2012-01-17 CN CN2012200210190U patent/CN202435094U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140976A (en) * | 2014-06-09 | 2015-12-09 | 深圳华粤宝电池有限公司 | Lithium ion power battery group equalization discharging system |
| CN110741528A (en) * | 2018-12-21 | 2020-01-31 | Oppo广东移动通信有限公司 | Battery power supply circuit, equipment to be charged and charging control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20130117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |