CN200959522Y - Plumbic acid accumulator of electric bicycle with automatic equilibrium charger - Google Patents
Plumbic acid accumulator of electric bicycle with automatic equilibrium charger Download PDFInfo
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- CN200959522Y CN200959522Y CN 200620035841 CN200620035841U CN200959522Y CN 200959522 Y CN200959522 Y CN 200959522Y CN 200620035841 CN200620035841 CN 200620035841 CN 200620035841 U CN200620035841 U CN 200620035841U CN 200959522 Y CN200959522 Y CN 200959522Y
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- lead
- electric bicycle
- acid accumulator
- automatic equalization
- equalization charging
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A lead-acid battery pack with an automatic equalization charging device for electric bicycle consists of a plurality of lead-acid batteries, a plurality of automatic equalization charging device which is comprised by a precision voltage equalization shunt [1] connected in series with a current limiting fuse [2]. The automatic equalization charging device is directly mounted on the top surface or the bottom surface of the lead-acid battery with a bridge connection structure. The lead-acid battery is automatically equalization charged without any other measures in a long time. Thus, the practical service life of the lead-acid battery pack for electric bicycle is greatly prolonged. The utility model provides the advantages of simple circuit, small volume, convenient using and good effect. The utility model is also used in other similar series connection lead-acid battery pack to solve the problem of equalization charging automatically.
Description
Technical field:
The utility model belongs to the electric drive system of electric bicycle.
Background technology:
Most of electric bicycles all adopt lead-acid batteries to come store electrical energy in the prior art, because each lead acid accumulator is not quite similar in many-sides such as capacitance, charge efficiency, electric leakages in the mill, be exactly inevitable thing thereby cause the electric bicycle lead-acid batteries to be scrapped in advance through generation part lead acid accumulator early ageing after the almost completely identical repeatedly charge and discharge cycles.Because the electric bicycle lead-acid batteries is closed in the housing, the general user can't carry out equalizing charge to it and safeguard, the electric bicycle manufacturer proposition prolongation charging interval is solved the equalizing charge problem of electric bicycle lead-acid batteries, in fact this contribution to the equalizing charge maintenance is very little, China ZL (application) 02124897.4 and 03118370.0 has disclosed the balanced charging device of two kinds of storage batterys, but all adopted the close-loop control mode that comprises external one chip microcomputer or dedicated control device, with the on-off mode shunting, it is too complicated, connection line is many, volume is big, the cost height, can not satisfy the narrow and small assembly in the interior space of electric bicycle lead-acid battery component is easy to remove the actual needs of dress thereby can not adopt.Can only reach the actual life of present most of electric bicycle lead-acid batteries about half of lead acid accumulator production producer design service life.Scrap lead acid accumulator in a large number in advance, both uneconomical, also can cause serious secondary pollution to environment, problem needs extremely to be solved.
Summary of the invention:
The purpose of this utility model provides a kind of electric bicycle lead-acid batteries that automatic equalization charging equipment is arranged, its automatic equalization charging equipment is convenient to and the integrated installation of storage battery, under common operating position, just can automatically solve the equalizing charge maintenance issues of each storage battery in the electric bicycle lead-acid batteries without any need for measure, in fact do not have the equalizing charge measure effective easy to use of cheap and simple to come each storage battery of electric bicycle lead accumulator group is carried out the problem that equalizing charge is safeguarded thereby solve electric bicycle lead accumulator group, prolong the actual life of batteries widely.
Technical solution of the present utility model is: one of cross-over connection is that core comprises resistance R 1 by the program control shunt regulator IC1 of precision on the positive and negative electrode of each lead acid accumulator of the electric bicycle lead-acid batteries that comprises N lead acid accumulator, 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, press in the shunt [1] at the precision weighing apparatus, resistance R 1 and R2 polyphone, mid point is connected on the Uref pin of accurate program control shunt regulator IC1, resistance R 3 and accurate program control shunt regulator IC1 polyphone, middle point cathode K is connected on the base stage b that expands stream transistor T 1, resistance R 2, the emitter e of the upper end of R3 and expansion stream transistor T 1 is attempted by on a point lower end of resistance R 1, the collector electrode c of the anode A of accurate program control shunt regulator IC1 and expansion stream transistor T 1 is attempted by on the b point.The ratio of regulating resistance R 1, R2 make each cross-over connection presses shunt [1] in each the accurate weighing apparatus on the same electric bicycle lead-acid batteries weighing apparatus pressure value lead acid accumulator float charge voltage value that manufacturer is recommended-700mv is between+the 400mv and make the maximum differential of weighing apparatus pressure value each other be not more than 25mv.Current limiting fuse [2] can be selected resistance, fusing resistor, PTC resettable fuse etc., should be able to limit electric current at below 3% of lead acid accumulator rated capacity under the maximum charging voltage condition that its resistance sizes may occur when operate as normal.If electric current is excessive; heating is serious; certainly will increase heat radiation; its volume is hard to tolerate in the closure casing of electric bicycle lead-acid battery component; the blowout current of current limiting fuse [2] can doubly be chosen by the 2-7 that is limited electric current, is used to prevent disconnect under abnormal operating state automatic equalization charging equipment and protection lead acid accumulator.Because automatic equalization charging equipment is very little, automatic equalization charging equipment just directly is mounted on lead acid accumulator near on the end face or bottom surface of positive and negative electrode, wherein the left end of current limiting fuse [2] is connected with the positive electrode of lead acid accumulator, and the b point is connected with the negative electrode of lead acid accumulator.
The electric bicycle lead-acid batteries that automatic equalization charging equipment is arranged is work like this:
The automatic equalization charging begins at once after the electric bicycle lead-acid batteries connection of automatic equalization charging equipment is upward flowed the charger that level pressure is the major control mode with current limliting level pressure or weighing apparatus.In charging, early stage, the charging voltage of each lead acid accumulator all was lower than the weighing apparatus pressure value that accurate weighing apparatus is pressed shunt [1], and accurate weighing apparatus presses shunt [1] not work, because its static working current is much smaller than the leakage current of lead acid accumulator, so can be considered as disconnecting.Suppose that now the lead acid accumulator in the electric bicycle lead-acid batteries is unbalance, the open circuit voltage that has has been lower than other lead acid accumulator open circuit voltage 100mv that has, in the charging later stage, because lead acid battery charge is unbalance, always there is lead acid accumulator to take the lead in meeting and exceeding the weighing apparatus pressure value that accurate weighing apparatus is pressed shunt [1], the automatic equalization charging equipment of cross-over connection on this lead acid accumulator begins to shunt with analog form, the size of its shunting strengthens with the rising of charging voltage, charging voltage is high more, the automatic equalization charging equipment shunting is big more, the electric current that charges into lead acid accumulator is more little, because all lead acid accumulators are polyphone relations, therefore, it is just big more to flow into the electric current of other lead acid accumulator inside.Be not difficult to find out, from there being a lead acid battery charge voltage to meet and exceed accurate weighing apparatus when pressing the weighing apparatus pressure value of shunt [1], charging just begins to tilt to the low lead acid accumulator of charging voltage, the electricity that the lead acid accumulator that charging voltage is low more fills is just many more, finally must make each lead acid accumulator in the electric bicycle lead-acid batteries reach charge balancing in a period of time.
There is the automatic equalization charging equipment static working current in the electric bicycle lead-acid batteries of automatic equalization charging equipment very little, the open circuit voltage height that the weighing apparatus pressure value that accurate weighing apparatus is pressed shunt [1] is more charged than storage battery 100% again is not so influence the storage of lead acid accumulator basically and increase extra discharge.
Description of drawings:
Accompanying drawing is the circuit theory diagrams that the electric bicycle lead-acid batteries of automatic equalization charging equipment is arranged, wherein:
E1 is a N lead acid accumulator in the electric bicycle lead-acid batteries to En;
[1] be that accurate weighing apparatus is pressed shunt;
[2] be current limiting fuse.
Embodiment:
The electric bicycle lead-acid batteries that 3 of the lead acid accumulators of the special-purpose 12v10AH that dispatched from the factory on February 28th, 2003 with Tianjin Ming Jiache industry Co., Ltd are equipped with automatic equalization charging equipment is an example:
Make 3 automatic equalization charging equipments, corresponding directly being mounted on 3 lead acid accumulator end faces and with the positive and negative electrode of lead acid accumulator is connected.In precision weighing apparatus pressure shunt [1], choose:
R1=22K Ω 1/6W 1% error R2=100K Ω 1/6W 1% error R3=100 Ω 1/6W
IC1=TL431C T1=TIP42C (B=80 joins the flat radiator of 30mm * 50mm * 2mm)
Current limiting fuse [2] is selected fusing resistor for use, is beneficial to reduce cost:
R0＝3.6Ω 1W
The static circuit parameter:
Accurate weighing apparatus presses the weighing apparatus pressure value=13.880v deviation of shunt [1] less than 20mv one-pass finished rate 70%
Automatic equalization charging equipment static working current＜400 μ A
Current limiting fuse [2] R0 fuses when the 1A electric current
One of them lead acid accumulator is at first put the 0.3AH capacity, carry out automatic equalization charging analogue test then.In the analogue test, take the lead in meeting and exceeding accurate weighing apparatus and press the lead acid accumulator of the weighing apparatus pressure value of shunt [1] to begin shunting, its shunting is undertaken by linear relationship, satisfies formula:
If＝(Uc-Uh)/R0＝1/R0×Uc-Uh/R0
If: the shunt current Uc of automatic equalization charging equipment: the charging voltage of lead acid accumulator
Uh: accurate weighing apparatus is pressed the weighing apparatus pressure value of shunt [1]
The lead-acid batteries of the 36v10AH that Tianjin Ming Jiache industry Co., Ltd produces is each lead acid accumulator 14.5V with the overcharged voltage of the three-step charger with weighing apparatus current control, so the maximum shunt electric current I fm=170mA of automatic equalization charging equipment.Through test, the charging process of a test can make the unbalanced voltage of charging reduce 27mV.
The weighing apparatus stream syllogic control charger that adapted Tianjin Ming Jiache industry Co., Ltd produces charges to the electric bicycle lead-acid batteries that automatic equalization charging equipment is arranged by original charging method, do not adopt any other measure, use the lead acid battery charge in the electric bicycle lead-acid batteries that automatic equalization charging equipment was arranged after July again in 3 years still good through electric bicycle, the open end voltage maximum deviation of 3 lead acid accumulators still＜63mv.This is a preferred embodiment of the present utility model.
A kind of electric bicycle lead-acid batteries that automatic equalization charging equipment is arranged that the utility model provides, the integrated installation of its automatic equalization charging equipment and storage battery, under common operating position, just can automatically solve the equalizing charge maintenance issues of each storage battery in the electric bicycle lead-acid batteries without any need for measure, in fact do not have the equalizing charge measure effective easy to use of cheap and simple to come each storage battery of electric bicycle lead accumulator group is carried out the problem that equalizing charge is safeguarded thereby solve electric bicycle lead accumulator group, prolong the actual life of batteries widely.
Claims (2)
1. electric bicycle lead-acid batteries that automatic equalization charging equipment is arranged, comprise N lead acid accumulator, it is characterized in that: cross-over connection has one to be that core comprises resistance R 1 by the program control shunt regulator IC1 of precision on the positive and negative electrode of each lead acid accumulator, 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, wherein resistance R 1 and R2 contact, mid point is connected on the Uref pin of accurate program control shunt regulator IC1, resistance R 3 and accurate program control shunt regulator IC1 polyphone, middle point cathode K is connected on the base stage b that expands stream transistor T 1, resistance R 2, the emitter e of the upper end of R3 and expansion stream transistor T 1 is attempted by on a point lower end of resistance R 1, the collector electrode c of the anode A of accurate program control shunt regulator IC1 and expansion stream transistor T 1 is attempted by on the b point.
2. the electric bicycle lead-acid batteries that automatic equalization charging equipment is arranged according to claim 1, it is characterized in that: described automatic equalization charging equipment directly is mounted on lead acid accumulator near on the end face or bottom surface of positive and negative electrode, wherein the left end of current limiting fuse [2] is connected with the positive electrode of lead acid accumulator, and the b point is connected with the negative electrode of lead acid accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620035841 CN200959522Y (en) | 2006-10-10 | 2006-10-10 | Plumbic acid accumulator of electric bicycle with automatic equilibrium charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620035841 CN200959522Y (en) | 2006-10-10 | 2006-10-10 | Plumbic acid accumulator of electric bicycle with automatic equilibrium charger |
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| Publication Number | Publication Date |
|---|---|
| CN200959522Y true CN200959522Y (en) | 2007-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620035841 Expired - Fee Related CN200959522Y (en) | 2006-10-10 | 2006-10-10 | Plumbic acid accumulator of electric bicycle with automatic equilibrium charger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826745A (en) * | 2010-05-18 | 2010-09-08 | 郁百超 | Lithium ion power battery lossless charger |
| CN101859916A (en) * | 2010-05-18 | 2010-10-13 | 王玉石 | Multifunctional multielement voltage control current divider of storage battery |
| CN101916886A (en) * | 2009-12-04 | 2010-12-15 | 浙江绿源电动车有限公司 | Battery capacity balancer and battery device |
| 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 |
-
2006
- 2006-10-10 CN CN 200620035841 patent/CN200959522Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916886A (en) * | 2009-12-04 | 2010-12-15 | 浙江绿源电动车有限公司 | Battery capacity balancer and battery device |
| CN101916886B (en) * | 2009-12-04 | 2013-08-21 | 浙江绿源电动车有限公司 | Battery capacity balancer and battery device |
| CN101826745A (en) * | 2010-05-18 | 2010-09-08 | 郁百超 | Lithium ion power battery lossless charger |
| CN101859916A (en) * | 2010-05-18 | 2010-10-13 | 王玉石 | Multifunctional multielement voltage control current divider of storage battery |
| CN101826745B (en) * | 2010-05-18 | 2014-06-04 | 郁百超 | Lithium ion power battery lossless charger |
| 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: 20071010 Termination date: 20101010 |