CN201466755U - Two-end passive on-line type automatic equalization maintaining device for lead-acid battery pack - Google Patents
Two-end passive on-line type automatic equalization maintaining device for lead-acid battery pack Download PDFInfo
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- CN201466755U CN201466755U CN2009200804765U CN200920080476U CN201466755U CN 201466755 U CN201466755 U CN 201466755U CN 2009200804765 U CN2009200804765 U CN 2009200804765U CN 200920080476 U CN200920080476 U CN 200920080476U CN 201466755 U CN201466755 U CN 201466755U
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- automatic equalization
- ifq
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Abstract
In the design, a precision constant-voltage splitter [1] which takes a precision programmable parallel voltage stabilizer IC1 as a core and comprises resistors R1, R2 and R3 and a transistor T1 is connected in series with a current limiting fuse [2] which is a resistor R0 to form an automatic equalization maintaining device, a resistor R5 is connected between a collector c and a b point of the transistor T1, and a resistor R4 is connected between a middle point cathode K connected in series between the resistor R3 and the precision programmable parallel voltage stabilizer IC1 and a base b of the transistor T1; and when a charging voltage reaches a hydrogen evolution voltage of a lead-acid battery and the IC1 and the T1 are saturated, the automatic equalization maintaining device works linearly according to a small slope, and the safety of the design in charging accidents is ensured.
Description
Technical field:
The utility model belongs to the secondary cell control management system.
Background technology:
Most of electric motor cars in the prior art, power peculiar to vessel or other standby direct current all adopt lead-acid batteries to come store electrical energy, because each lead acid accumulator is in capacitance in the mill, charge efficiency, many-sides such as electric leakage are not quite similar, through producing the passivation of lead acid accumulator otherness after the almost completely identical repeatedly charge and discharge cycles, causing the early ageing of part battery, is exactly inevitable thing thereby cause lead-acid batteries to be scrapped in advance.Chinese patent 200620035841.7 has been announced the passive online lead-acid batteries automatic equalization attending device of a kind of two ends by linear mode work, though its effect is better, but there is a more serious problem: when battery in the lead-acid batteries or the cell in the battery short circuit occurs and in following time of situation of charging, the voltage that is loaded on the passive online lead-acid batteries automatic equalization attending device of Chinese patent 200620035841.7 described two ends will substantially exceed design load, shunting by linear mode work will become very big, thereby there is the situation of burning the automatic equalization attending device to take place, make its reliability and fail safe be subjected to great threat, this problem is extremely to be solved.
Summary of the invention:
For fear of a battery or the cell in battery of the passive online lead-acid batteries automatic equalization attending device of Chinese patent 200620035841.7 described two ends in lead-acid batteries short circuit appears and the situation of burning the automatic equalization attending device takes place, make its reliable more and safety, the utility model proposes the passive online lead-acid batteries automatic equalization attending device of a kind of two ends by the work of Linear Double slope mode, it can effectively address this problem.
Technical solution of the present utility model is to be that core comprises resistance R 1 by the program control shunt regulator IC1 of precision, R2, the precision weighing apparatus pressure shunt [1] of R3 and expansion stream transistor T 1 composition and the current limiting fuse of being taken on by resistance R 0 [2] contact in the automatic equalization attending device of forming:
A. connect a resistance R 5 between collector electrode c that expands stream transistor T 1 and b point, choosing much larger than its size of R0. of resistance R 5 is:
R5＝(Ucq-Ifq×R0)/Icq (1)
Icq＝Ifq-Ikaq (2)
B. at the middle point cathode K of resistance R 3 and accurate program control shunt regulator IC1 polyphone with expand between the base stage b of stream transistor T 1 and be connected a resistance R 4, the size of resistance R 4 is:
R4＝(Ucq-Ifq×R0-2.5)/Ibq (3)
Ibq＝Ikaq-(Ucq-Ifq×R0-2.5)/R3 (4)
Ucq: the charging voltage of lead acid accumulator when liberation of hydrogen voltage
Ifq: the design shunt current of lead acid accumulator when liberation of hydrogen voltage
Ikaq: the anode current of lead acid accumulator accurate program control shunt regulator IC1 when liberation of hydrogen voltage
The passive online lead-acid batteries automatic equalization attending device of a kind of two ends is work like this:
When the passive online lead-acid batteries automatic equalization attending device of a kind of two ends is pressed more than the shunt weighing apparatus pressure value at the precision weighing apparatus by the charging voltage Uc of the battery of parallel connection, when lead acid accumulator liberation of hydrogen voltage is following, accurate program control shunt regulator IC1 and expansion stream transistor T 1 all do not have saturated, by slope is the big slope linear mode work of 1/Ro, shunt current If=1/Ro * Uc-Uh/Ro, wherein Uc is the charging voltage that is added on the lead acid accumulator, and Uh is the weighing apparatus pressure value of accurate program control shunt regulator IC1; When the passive online lead-acid batteries automatic equalization attending device of a kind of two ends by the battery charging voltage Uc of parallel connection when lead acid accumulator liberation of hydrogen voltage is above; accurate program control shunt regulator IC1 and expansion stream transistor T 1 are all saturated; by slope is the little slope linear mode work of 1/ (Ro+R5); shunt current If1=1/ (Ro+R5) * Uc+ (Uh-2.5)/R3//R4; wherein Uc is the charging voltage that is added on the lead acid accumulator; because choosing of resistance R 5 much larger than R0; 1/ (Ro+R5) is much smaller than 1/Ro; charging voltage Uc on being added in lead acid accumulator is because when following time of situation that battery in the lead-acid batteries or the cell in the battery short circuit occurs and charging; If rises very slow with the increase of charging voltage Uc, greatly protected the safety of the passive online lead-acid batteries automatic equalization attending device of a kind of two ends.
Description of drawings:
Accompanying drawing 1 is the circuit theory diagrams of the passive online lead-acid batteries automatic equalization attending device of a kind of two ends, wherein:
E is a lead acid accumulator in the electric bicycle lead-acid batteries;
[1] be that accurate weighing apparatus is pressed shunt;
[2] be current limiting fuse;
It in the dot-dash wire frame the passive online lead-acid batteries automatic equalization attending device knot platform of lead acid accumulator and a kind of two ends electronic cell together.
Embodiment:
Make a passive online lead-acid batteries automatic equalization attending device of described a kind of two ends, its counter element is chosen as follows:
R0＝1.5Ω 1/4W R1＝22K 1/6W R2＝100K 1/6W
R3＝680Ω 1/6W R4＝300Ω 1/6W R5＝75Ω 2W
IC1=TL431C T1=TIP42C (B=80 joins the flat radiator of 30mm * 50mm * 2mm) fine setting static circuit parameter is:
Accurate weighing apparatus is pressed the weighing apparatus pressure value=13.800v of shunt [1]
This is the design's a preferred embodiment.
Become electronic cell on the 12V12AH lead acid accumulator then be another preferred embodiment if the passive online lead-acid batteries automatic equalization attending device of a kind of two ends of embodiment directly is contained in when the battery production.
After tested, when the charging voltage Uc on the passive online lead-acid batteries automatic equalization attending device of a kind of two ends that are added in the foregoing description reaches the 20V that may occur hardly when charging, can both operate as normal and unlikely burning.
Claims (1)
1. passive online lead-acid batteries automatic equalization attending device of end, comprise that one is that core comprises resistance R 1 by the program control shunt regulator IC1 of precision, R2, the automatic equalization charging equipment that the precision weighing apparatus pressure shunt [1] of R3 and expansion stream transistor T 1 composition and the current limiting fuse of being taken on by resistance R 0 [2] are contacted and formed is characterized in that:
A. resistance R 5 of connection between collector electrode c that expands stream transistor T 1 and b point, the choosing of resistance R 5 much larger than R0, its size is:
R5＝(Ucq-Ifq×R0)/Icq (1)
Icq＝Ifq-Ikaq (2)
B. at the middle point cathode K of resistance R 3 and accurate program control shunt regulator IC1 polyphone with expand between the base stage b of stream transistor T 1 and be connected a resistance R 4, the size of resistance R 4 is:
R4＝(Ucq-Ifq×R0-2.5)/Ibq (3)
Ibq＝Ikaq-(Ucq-Ifq×R0-2.5)/R3(4)
Wherein: Ucq is the charging voltage of lead acid accumulator when liberation of hydrogen voltage, and Ifq is the design shunt current of lead acid accumulator when liberation of hydrogen voltage, and Ikaq is the anode current of lead acid accumulator accurate program control shunt regulator IC1 when liberation of hydrogen voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200804765U CN201466755U (en) | 2009-04-28 | 2009-04-28 | Two-end passive on-line type automatic equalization maintaining device for lead-acid battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200804765U CN201466755U (en) | 2009-04-28 | 2009-04-28 | Two-end passive on-line type automatic equalization maintaining device for lead-acid battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466755U true CN201466755U (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200804765U Expired - Fee Related CN201466755U (en) | 2009-04-28 | 2009-04-28 | Two-end passive on-line type automatic equalization maintaining device for lead-acid battery pack |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859916A (en) * | 2010-05-18 | 2010-10-13 | 王玉石 | Multifunctional multielement voltage control current divider of storage battery |
| CN104617626A (en) * | 2015-02-10 | 2015-05-13 | 申勇兵 | Charging protection circuit used for capacitor voltage reduction |
| CN111756078A (en) * | 2019-03-26 | 2020-10-09 | 中国电子科技集团公司第十八研究所 | Current-adjustable passive equalization circuit based on three-terminal regulator |
-
2009
- 2009-04-28 CN CN2009200804765U patent/CN201466755U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859916A (en) * | 2010-05-18 | 2010-10-13 | 王玉石 | Multifunctional multielement voltage control current divider of storage battery |
| CN104617626A (en) * | 2015-02-10 | 2015-05-13 | 申勇兵 | Charging protection circuit used for capacitor voltage reduction |
| CN111756078A (en) * | 2019-03-26 | 2020-10-09 | 中国电子科技集团公司第十八研究所 | Current-adjustable passive equalization circuit based on three-terminal regulator |
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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: 20100512 Termination date: 20110428 |