CN106356968A - Positive-negative pulse charging and capacity repairing device for lead-acid storage battery - Google Patents
Positive-negative pulse charging and capacity repairing device for lead-acid storage battery Download PDFInfo
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- CN106356968A CN106356968A CN201610974374.2A CN201610974374A CN106356968A CN 106356968 A CN106356968 A CN 106356968A CN 201610974374 A CN201610974374 A CN 201610974374A CN 106356968 A CN106356968 A CN 106356968A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
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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
Abstract
The invention belongs to the technical field of charging and repairing of lead-acid storage batteries and specifically relates to a positive-negative pulse charging and capacity repairing device for a lead-acid storage battery. The device comprises a charger, a storage battery BT, a sampling circuit, a photocoupling negative voltage feedback circuit and the like. The device is characterized by further comprising a storage battery charging and discharging circuit, a pulse repairing and control circuit, a voltage stabilizing circuit, a rectangular wave vibration output circuit, a waveform transformation circuit, a controlled switch, a function transformation switch and the like. According to the positive-negative pulse charging and capacity repairing device for the lead-acid storage battery, the electrolysis and evaporation of water in electrolyte of the storage battery can be reduced, the heat productivity of the storage battery and the formation of internal bubbles can be reduced, the service life of the storage battery is prolonged, and the decrease of the actual use capacity of the lead-acid storage battery caused due to ''sulfation'' is restored to a certain degree.
Description
Technical field
The invention belongs to lead acid battery charge technical field, be specially positive negative pulse stuffing charging and the capacity of lead-acid accumulatorProsthetic device.
Background technology
In recent years, along with the fast development of the industries such as auto industry, electric vehicle, photovoltaic generation, the demand of batteryIncreasing, lead-acid accumulator has low cost of manufacture, pollutes the advantages such as little, thereby has obtained using widely. General plumbic acidThe battery designs life-span is 5～6 years. But in fact,, because operation and maintenance is improper, lead-acid accumulator usually reaches not service lifeTo design period. The principal element that affects lead-acid accumulator service life is regular the overcharging or charge less electricity of battery, leadsCause the dehydration of lead-acid accumulator electrolyte inside, and sulfation occurs, cause battery to use capacity loss, battery losesDue power supply capacity. Usually exist and overcharge during to charge in batteries due to the charger with general, regular overchargesElectricity can make the dehydration of battery electrolyte inside, and concentration of electrolyte increases, and causes accumulator capacity to decline, and even causes because dehydration is dryBattery malfunction; If the charge less electricity that lead-acid accumulator is regular, battery is often not fully filled, and the lead sulfate in battery can not get in timeReduction completely, can be gradually form the fine and close hard lead sulfate crystalline solid of one deck white, i.e. sulfation in negative terminal surface. ThisLead sulfate crystalline solid is attached to diffuse normal and the electrochemical reaction of negative plate surface obstruction electrolyte, causes under accumulator capacityFall. And adopt positive negative pulse stuffing charging can reduce electrolysis and the evaporation of water in battery electrolyte inside, reduce internal storage battery gasGeneration and the caloric value of bubble, be conducive to extend service life of battery. Lead-acid accumulator produces after sulfation, is attached to the utmost pointThe lead sulfate crystalline particle of plate surface white is difficult to reduction by conventional charging method, causes battery capacity to decline. If to heightThe lead sulfate crystallization of resistivity applies periodic high burst pulse voltage, because pulse width is narrow, and pulse charging current averageValue is little, just can, in puncturing thick lead sulfate crystallization, be unlikely to form a large amount of gassings, also avoids anode damage. HighAfter burst pulse, add negative burst pulse electric discharge, make the micro-charging occurring have little time to form gassing. So just can smash large lead sulfate knotCrystalline substance, eliminates or alleviates the sulfation of lead-acid accumulator, recovers to a certain extent the use capacity of battery. China is the worldThe production of upper lead-acid accumulator and use big country, extends service life of lead-acid accumulator, not only can reduce resource consumption andUse spending, also help to reduce to process and scrap the harmful effect that lead-acid accumulator causes ecological environment.
Such as, the use of electric bicycle is at present very general, and it generally adopts lead-acid accumulator as electrical source of power, adopts12V valve-control sealed lead acid battery is composed in series the supply voltage that reaches required as single battery; For example 48V electric bicycleBattery is in series by 4 12V lead-acid accumulators, and after battery of electric bicycle capacity loss, majority is that wherein a battery holdsAmount declines and causes, and problematic probability is little simultaneously for many batteries, as long as this battery of capacity loss is repaired, with regard to energyEnough recover the use of battery of electric bicycle. Although the capacity of lead acid battery instrument for repairing of specialty is multiple functional: comprise capacity inspectionThe functions such as survey, electric discharge, charging, capacity reparation, but its equipment volume is larger, price is more expensive, and cost performance is not high, is not suitable for familyIndividual buys and uses, and existing portable lead-acid battery charger function is single, and majority is traditional HF switchRectifying and voltage-stabilizing charging circuit, is unfavorable for extending service life of battery. Because professional capacity of lead acid battery obturator becomesThis height, volume are large, and be not suitable for household person and buy and use, thus use after capacity loss at electric bike battery, manyNumber user buys new battery to replace whole used batteries, and the used batteries of in fact replacing have a lot or can continue to makeWith a period of time, the plumbic acid that cost is low, volume is little if having, realize " charging " and " reparation " two kinds of functions by change-over switch holdsThe charging of battery positive negative pulse stuffing and capacity obturator, user just likely can attempt repairing the used batteries of capacity loss, to extend electricityThe service time of moving bicycle battery.
Summary of the invention
Object of the present invention is the problems referred to above that solve prior art, and positive negative pulse stuffing charging and the capacity of lead-acid accumulator is providedProsthetic device, the present invention can reduce electrolysis and the evaporation of water in battery electrolyte inside, reduces the product of internal storage battery bubbleLife and caloric value, reduction lead-acid accumulator produces the probability of " thermal runaway " and " sulfation ", is conducive to extend making of batteryWith the life-span; Eliminate or alleviate the sulfation of lead-acid accumulator, recover to a certain extent the use capacity of battery. The present inventionSize that can also manual adjustments battery initial charge current, avoids causing because accumulator voltage is too low initial charge currentExcessive, to achieve these goals, the technical solution used in the present invention is as follows:
Positive negative pulse stuffing charging and the capacity prosthetic device of lead-acid accumulator, low frequency mains supply is inputted charger after rectifying and wave-filteringIn the charge circuit of battery BT composition, it is characterized in that: charger is provided with sample circuit, sample circuit is connected across chargingThe positive and negative output of device output circuit, the low-voltage output of sample circuit is connected with one end of the first function switch, described inThe other end of the first function switch is connected to the negative output terminal of output circuit for charger, output circuit for charger positive and negativeBetween output, also cross-over connection has mu balanced circuit, and the low-voltage output of described mu balanced circuit is the power supply of square wave oscillation output circuit,Described square wave oscillation output circuit output one tunnel is connected with the input of the first waveform changing circuit, and described the first waveform turnsThe output that changes circuit is connected with the control end of the second controlled switch, and described the second controlled switch is connected to battery BT two ends,Another road of square wave oscillation output circuit output is connected with the input of the second function switch, and described the second function turnsThe output that changes switch is connected with the input of the second waveform changing circuit, the output of described the second waveform changing circuit andThe control end of one controlled switch connects, and described the first controlled switch is connected on the charge circuit of charger and battery BT compositionIn, described the first waveform changing circuit is the second capacitor C2With the 5th resistance R5The differential circuit of composition, described the second waveform transformationCircuit is the first capacitor C1With the 6th resistance R6The differential circuit of composition, described the first controlled switch is N channel field-effect pipe Q1，Described the second controlled switch is P-channel field-effect transistor (PEFT) pipe Q2, described the first function switch and the second function switch are twoCutter double control switch K, the total e end of described the first function switch, d end, f hold three binding posts, described the second function conversionThe total a end of switch, b end, c hold three binding posts, the cutter of the disconnecting link of the first function switch and the second function switchLock is connected, by same handle control.
By switching, battery BT is placed in charging by the first function switch and the second function switch or capacity is repaiiedMultiple state, the pinnacle that it is alternate positive and negative that the first waveform changing circuit, the second waveform changing circuit are responsible for square wave pulses switchPulse, then recently controls the first controlled switch, the by changing output pulse frequency, the duty of square wave oscillation output circuitThe conducting of two controlled switch or the time of cut-off and frequency, finally reach with suitable current value, reasonably discharge and recharge the time andThe object of frequency accumulators BT charging or the capacity of reparation.
Preferably, described sample circuit is by the first resistance R1, the second resistance R2, the 3rd resistance R3Be composed in series successively, whereinThe first resistance R1Free end be connected on the positive output end of charger, the first resistance R1With the second resistance R2Public termination photoelectricity couplingClose the input of device, the second resistance R2With the 3rd resistance R3The normal open switch of common port string the first function switch after connect and fillThe negative output terminal of electrical equipment, the 3rd resistance R3The negative output terminal of free termination charger.
Change the resistance value of sample circuit by switching the first function switch, and then change the inspection of sample circuit feedbackSurvey the magnitude of voltage U of outputfThereby, change high frequency transformer T1Output voltage U0, make battery BT obtain charging or repair and holdRequired suitable voltage value when amount.
Preferably, described mu balanced circuit is by the 9th resistance R9With Zener diode DZChuan Lian Group becomes, the 9th resistance R9One terminationAt the positive output end of output circuit for charger, the 9th resistance R9Another termination Zener diode DZNegative electrode, described Zener diode
DZAnode be connected on the negative output terminal of output circuit for charger, Zener diode DZNegative electrode be low-voltage output UCC, be rectangleThe power supply of ripple vibration output circuit.
555 timers, charge circuit that mu balanced circuit is square wave oscillation output circuit provide operating voltage.
Preferably, described square wave oscillation output circuit is by 555 timers, the 7th resistance R7, the 8th resistance R8, first wholeStream diode D1, the second commutation diode D2, the first adjustable potentiometer RP1, the second adjustable potentiometer RP2, the 3rd capacitor C3, the 4thCapacitor C4Composition, the earth terminal ground connection of described 555 timers, control end series connection the 3rd capacitor C3Rear ground connection, threshold value end is defeated with triggeringEnter end and be attempted by the first adjustable potentiometer RP1Centre tap, this first adjustable potentiometer RP1Centre tap series connection the 4th electricityHold C4Rear ground connection, described the first adjustable potentiometer RP1The first stiff end be connected on the first adjustable potentiometer RP1Centre tap andFour capacitor C4Connecting circuit, described the first adjustable potentiometer RP1The second stiff end and the second adjustable potentiometer RP2Centre take outHead is connected, described the second adjustable potentiometer RP2The first stiff end and the first commutation diode D1Anode be connected, described firstCommutation diode D1Negative electrode string the 8th resistance R8After connect the discharge end of 555 timers, the second adjustable potentiometer RP2Second solidFixed end and the second commutation diode D2Negative electrode be connected, described the second commutation diode D2Anode connect the electric discharge of 555 timersEnd, discharge end series connection the 7th resistance R of described 555 timers7After meet Zener diode DZNegative electrode be low-voltage output UCC。
Charging circuit: input voltage UCC-R7-D2-RP2-RP1-C4, discharge circuit: C4-RP1-RP2-D1-R8-discharge end, byAbove-mentioned charging circuit, discharge circuit form the regulating networks of 555 timer multi-resonant oscillating circuits, like this can by changing secondAdjust potentiometer RP2Resistance be the dutycycle of adjustable 555 timers output pulses, change the first adjustable potentiometer RP1ResistanceIt is the frequency of adjustable 555 timer output pulses.
Preferably, output one tunnel of described 555 timers second capacitor C of connecting2After meet P-channel field-effect transistor (PEFT) pipe Q2GridThe utmost point, described P-channel field-effect transistor (PEFT) pipe Q2Drain electrode connect the negative pole of battery BT, the positive pole of described battery BT is just being connected on chargerOutput, battery BT positive pole and P-channel field-effect transistor (PEFT) pipe Q2Source electrode between string have the 4th resistance R4, P-channel field-effect transistor (PEFT) pipe Q2SourceThe utmost point is connected on the positive output end of charger, described the 5th resistance R5Be connected to P-channel field-effect transistor (PEFT) pipe Q2Source electrode and grid, 555 timingAnother road of device output is gone here and there after the normally closed switch of the second function switch and is met N channel field-effect pipe Q1Grid, describedThe normal open switch of two function switch first capacitor C of connecting successively1, the 6th resistance R6Rear ground connection, described N channel field-effect pipe
Q1Source electrode meet ground connection after the negative output terminal of charger, N channel field-effect pipe Q1Drain electrode connect the negative pole of battery BT.
Carry out switching the second waveform changing circuit by switching the second function switch, by the first waveform changing circuit,Two waveform changing circuits are converted to rectangular wave pulse signal the pointed peaky pulse signal of alternate positive and negative, by the pinnacle of alternate positive and negativePulse signal carrys out driving N channel field-effect pipe Q1With P-channel field-effect transistor (PEFT) pipe Q2Conducting or cut-off, thereby can control batteryThe time of BT charge and discharge and frequency.
Preferably, described charger is also provided with rectifier filter circuit, and described rectifier filter circuit is by the 3rdCommutation diode D3With the 5th capacitor C5Be composed in series successively, wherein the 3rd commutation diode D3It is just defeated that forward is serially connected with chargerGo out circuit, the 5th capacitor C5Be connected across the positive and negative output of output circuit for charger.
The voltage waveform of high frequency transformer output after rectifier filter circuit for sample circuit provides stable direct currentVoltage, wherein the 3rd commutation diode D3Play one-way commutation effect, the 5th capacitor C5Play the effect of filtering.
Preferably, described charger is also provided with optically-coupled voltage negative feedback circuit, described optically-coupled voltage negative feedback electricityThe input on road and the feedback of sample circuit detect output UfBe connected, the output warp of described optically-coupled voltage negative feedback circuitPower module is connected to high frequency transformer T1Former limit, the main element of described optically-coupled voltage negative feedback circuit is photoelectric couplingDevice.
Described optically-coupled voltage negative feedback circuit mainly plays from sample circuit collection voltage feedback signal and according to samplingSignal is adjusted high frequency transformer T1The effect of output voltage, described photoelectrical coupler plays high frequency transformer T1Former limit and samplingCircuit carries out the effect of electrical isolation, and described power module is built-in with switching transistor, controls by the break-make of switching transistorHigh frequency transformer T1Input voltage so that can adjust high frequency transformer T1Output voltage.
In sum, the present invention has adopted after such scheme, has following beneficial effect:
(1), the dutycycle of charging pulse of the present invention can manual adjustments, makes the mean value of initial charge current be applicable to different appearanceThe lead acid battery charge of amount, uses the current charges of 0.1～0.3 times of lead-acid accumulator nominal capacity, has avoided being chargedWhen lead-acid accumulator brownout, cause the excessive problem of initial charge current, overcome existing charger and be only suitable for that certain is specificThe shortcoming of the lead acid battery charge of capacity.
(2), the present invention adopts positive negative pulse stuffing charging, can reduce electrolysis and the evaporation of water in battery electrolyte inside, subtractGeneration and the caloric value of few internal storage battery bubble, reduction lead-acid accumulator produces the probability of " thermal runaway " and " sulfation ",Be conducive to extend the service life of battery.
(3), the present invention adopts periodic high burst pulse to repair to producing the lead-acid accumulator of " sulfation "Property charging, after high burst pulse, add negative burst pulse electric discharge, the micro-charging that makes to occur has little time to form gassing and also can avoid simultaneouslyAnode damage, so just can smash large lead sulfate crystallization, eliminates or alleviate the sulfation of lead-acid accumulator, to a certain extentCan recover the use capacity of capacity of lead acid battery.
Brief description of the drawings
In order to be illustrated more clearly in example of the present invention or technical scheme of the prior art, below will be to embodiment or existingHave needed accompanying drawing in technical description to do introduction simply, obviously, the accompanying drawing in the following describes is only more of the present inventionExample, to those skilled in the art, is not paying under creationary prerequisite, can also obtain according to these accompanying drawingsOther accompanying drawing.
Fig. 1 is the positive negative pulse stuffing charging of lead-acid accumulator of the present invention and the structural representation of capacity prosthetic device.
Fig. 2 is the positive negative pulse stuffing charging of lead-acid accumulator of the present invention and the circuit theory diagrams of capacity prosthetic device.
Fig. 3 is the positive negative pulse stuffing charge waveforms figure of the present invention while not connecing battery.
Fig. 4 is that the positive negative pulse stuffing of the present invention while not connecing battery repaired charge waveforms figure.
Detailed description of the invention
Below in conjunction with the accompanying drawing in example of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeGround is described, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment. Based on thisEmbodiment in invention, those of ordinary skill in the art are not making the every other reality obtaining under creative work prerequisiteExecute example, all belong to the scope of protection of the invention.
In conjunction with Fig. 1, positive negative pulse stuffing charging and the capacity prosthetic device of lead-acid accumulator, low frequency mains supply is through rectifying and wave-filteringIn the charge circuit of rear input charger and battery BT composition, it is characterized in that: charger is provided with sample circuit sampling electricityRoad is connected across the positive and negative output of output circuit for charger, the low-voltage output of sample circuit and the first function switchOne end connects, and the other end of described the first function switch is connected to the negative output terminal of output circuit for charger, and charger is defeatedGoing out between the positive and negative output of circuit also cross-over connection has mu balanced circuit, and the low-voltage output of described mu balanced circuit is square wave oscillationOutput circuit power supply, described square wave oscillation output circuit output one tunnel is connected with the input of the first waveform changing circuit,The output of described the first waveform changing circuit is connected with the control end of the second controlled switch, and described the second controlled switch is connected toBattery BT two ends, another road of square wave oscillation output circuit output is connected with the input of the second function switch,The output of described the second function switch is connected with the input of the second waveform changing circuit, described the second waveform transformation electricityThe output on road is connected with the control end of the first controlled switch, and described the first controlled switch is connected on charger and battery BT groupIn the charge circuit becoming, described the first waveform changing circuit is the second capacitor C2With the 5th resistance R5The differential circuit of composition, described inThe second waveform changing circuit is the first capacitor C1With the 6th resistance R6The differential circuit of composition, described the first controlled switch is N raceway grooveFET Q1, described the second controlled switch is P-channel field-effect transistor (PEFT) pipe Q2, described the first function switch and the second function turnChanging switch is double-pole double control switch K, and the total e end of described the first function switch, d end, f hold three binding posts, described theThe total a end of two function switch, b end, c hold three binding posts, and the disconnecting link of the first function switch and the second function turnThe disconnecting link that changes switch is connected, by same handle control.
In conjunction with Fig. 2, described sample circuit is by the first resistance R1, the second resistance R2, the 3rd resistance R3Be composed in series successively, itsIn the first resistance R1Free end be connected on the positive output end of charger, the first resistance R1With the second resistance R2Public termination photoelectricityThe input of coupler, the second resistance R2With the 3rd resistance R3The normal open switch of common port string the first function switch after connectThe negative output terminal of charger, the 3rd resistance R3The negative output terminal of free termination charger, described mu balanced circuit is by the 9th resistance R9With Zener diode DZChuan Lian Group becomes, the 9th resistance R9One end is connected on the positive output end of output circuit for charger, the 9th resistance R9SeparatelyOne termination Zener diode DZNegative electrode, described Zener diode DZAnode be connected on the negative output terminal of output circuit for charger, steadyPress diode DZNegative electrode be low-voltage output UCC, be the power supply of square wave oscillation output circuit. Described square wave oscillation output electricityRoute 555 timers, the 7th resistance R7, the 8th resistance R8, the first commutation diode D1, the second commutation diode D2, first adjustablePotentiometer RP1, the second adjustable potentiometer RP2, the 3rd capacitor C3, the 4th capacitor C4Composition, the earth terminal of described 555 timers (drawsPin 1) ground connection, control end (pin 5) series connection the 3rd capacitor C3Rear ground connection, threshold value end (pin 6) and triggering input (pin 2) are alsoBe connected on the first adjustable potentiometer RP1Centre tap, this first adjustable potentiometer RP1Centre tap series connection the 4th capacitor C4After connectGround, described the first adjustable potentiometer RP1The first stiff end be connected on the first adjustable potentiometer RP1Centre tap and the 4th capacitor C4Connecting circuit, described the first adjustable potentiometer RP1The second stiff end and the second adjustable potentiometer RP2Centre tap be connected,Described the second adjustable potentiometer RP2The first stiff end and the first commutation diode D1Anode be connected, described first rectification two utmost pointsPipe D1Negative electrode string the 8th resistance R8After connect the discharge end (pin 7) of 555 timers, the second adjustable potentiometer RP2Second fixingEnd and the second commutation diode D2Negative electrode be connected, described the second commutation diode D2Anode connect the discharge end of 555 timers(pin 7), discharge end series connection the 7th resistance R of described 555 timers7After meet Zener diode DZNegative electrode be low-voltage output
UCC, output (pin 3) road of described 555 timers second capacitor C of connecting2After meet P-channel field-effect transistor (PEFT) pipe Q2Grid, instituteState P-channel field-effect transistor (PEFT) pipe Q2Drain electrode connect the negative pole of battery BT, the positive pole of described battery BT is connected on the positive output of chargerEnd, battery BT positive pole and P-channel field-effect transistor (PEFT) pipe Q2Source electrode between string have the 4th resistance R4, P-channel field-effect transistor (PEFT) pipe Q2Source electrode connectsAt the positive output end of charger, described the 5th resistance R5Be connected to P-channel field-effect transistor (PEFT) pipe Q2Source electrode and grid, 555 timers are defeatedAnother road that goes out end (pin 3) is gone here and there after the normally closed switch of the second function switch and is met N channel field-effect pipe Q1Grid, described inThe normal open switch of the second function switch first capacitor C of connecting successively1, the 6th resistance R6Rear ground connection, described N channel field-effectPipe Q1Source electrode meet ground connection after the negative output terminal of charger, N channel field-effect pipe Q1Drain electrode connect the negative pole of battery BT. DescribedCharger is also provided with rectifier filter circuit, and described rectifier filter circuit is by the 3rd commutation diode D3With the 5th electricityHold C5Be composed in series successively, wherein the 3rd commutation diode D3Forward is serially connected with charger positive output circuit, the 5th capacitor C5Cross-over connectionAt the positive and negative output of output circuit for charger. Described charger is also provided with optically-coupled voltage negative feedback circuit, described optocouplerClose the input of voltage negative feedback circuit and the feedback of sample circuit and detect output UfBe connected, described optically-coupled voltage negative feedbackThe output of circuit is connected to high frequency transformer T through power module1Former limit, the main unit of described optically-coupled voltage negative feedback circuitPart is photoelectrical coupler.
In embodiments of the present invention, as shown in Figure 2, described the first adjustable potentiometer RP1With the second adjustable potentiometer RP2'sResistance is 50k Ω-100k Ω, and output (pin 3) output frequency of 555 timers is 6-20kHz, and dutycycle is 10%-95%Rectangular wave pulse, described power module is STRG9656. When f end and the d termination of the first function switch are led to, the second function turnsChange the b end of switch and c termination while leading to, charger is placed in to " charging " state, the VD U of chargeroBe about 15V,The low-voltage output U of mu balanced circuitCCTo operating voltage input (pin 8), the reset terminal (pin 4) of 555 timers and fillElectricity circuit: input voltage UCC-R7-D2-RP2-RP1-C4Provide a high level voltage signal, simultaneously the output of 555 timers(pin 3) be periodically rectangular pulse of output outwards, because c end and the b end of the second function switch are connected, and therefore this rectangleThe direct driving N channel field-effect of pulse signal pipe Q1Periodically conducting and cut-off. At N channel field-effect pipe Q1When conducting, holdThe charge circuit conducting of battery BT, DC voltage UoBe loaded into the positive and negative end accumulators BT charging of battery BT. At N raceway grooveFET Q1When cut-off, battery BT two ends can not get DC voltage Uo, at this moment battery BT two ends can only obtain amplitude approximatelyThe periodic positive pulse voltage of 14.2V, meanwhile, the periodicity rectangular pulse of 555 timer outputs is through the first waveform transformationAfter processing of circuit, arrive P-channel field-effect transistor (PEFT) pipe Q2Grid be the pointed peaky pulse of alternate positive and negative, negative pointed peaky pulse makes Q2Pipe conducting,Now battery BT is by the P-channel field-effect transistor (PEFT) pipe Q of conducting2With current-limiting resistance R4Electric discharge. Due to the negative pointed peaky pulse duration veryShort, so P-channel field-effect transistor (PEFT) pipe Q2ON time is also very short, has formed like this negative pulse of battery BT instantaneous discharge. At P ditchRoad FET Q2When transient switching, N channel field-effect pipe Q1Still, in cut-off state, at this moment do not connect the positive and negative arteries and veins of battery BTRush charge waveforms as shown in Figure 3, the now positive pulse dutycycle maximum of 555 timer outputs, hence one can see that regulates 555 timersOutput pulse duty factor regulate the second adjustable potentiometer RP2Resistance, just can regulate the size of initial charge current. ByThe negative pulse duration in electric discharge is very short, and positive pulse duration much larger than the negative pulse duration, so battery BTBe in charging on the whole, thereby realized the positive negative pulse stuffing charging of battery.
In embodiments of the present invention, as shown in Figure 2, when f end and the e termination of the first function switch are led to, the second functionWhen a end of change-over switch and c termination are logical, charger is placed in to " repairing charging " state, now sample resistance R3By short circuit, chargingThe optically-coupled voltage negative feedback of device output weakens, thus VD UoBe increased to about 28V, now 555 timer outputsThe periodicity rectangular pulse of end (pin 3) output, after the second waveform changing circuit is processed, arrives N channel field-effect pipe Q1GridThe utmost point be the pointed peaky pulse of alternate positive and negative, positive pointed peaky pulse driving N channel field-effect pipe Q1Conducting, At All Other Times N ditch place where Taoist rites are performed effectShould manage Q1Cut-off. Because the positive pointed peaky pulse duration is short, therefore N channel field-effect pipe Q1ON time is also short, thus direct currentPress UoCan only be loaded into the two ends of battery BT the short time, battery BT two ends just can only obtain being about the high-amplitude of 25.6V like thisBe worth narrow positive pulse. Meanwhile, the periodicity rectangular pulse of 555 timer output ends (pin 3) output is through the first waveform transformationAfter processing of circuit, arrive P-channel field-effect transistor (PEFT) pipe Q2Grid be the pointed peaky pulse of alternate positive and negative, negative pointed peaky pulse makes P ditch place where Taoist rites are performedEffect pipe Q2Conducting, now battery BT is by the P-channel field-effect transistor (PEFT) pipe Q of conducting2With current-limiting resistance R4Electric discharge. Due to negative pinnaclePulse duration is very short, so P-channel field-effect transistor (PEFT) pipe Q2ON time is also very short, has so just formed that battery BT is instantaneous to be putThe negative pulse of electricity. At P-channel field-effect transistor (PEFT) pipe Q2When transient switching, N channel field-effect pipe Q1Still in cut-off state, negative pulse itAfter be the pulse down-time period, as shown in Figure 4, the positive pulse dutycycle maximum of 555 timers outputs in this case, its positive pulse accounts forSky reduces than fine-tuning.
The charging of this positive negative pulse stuffing is adjustable with the initial charge current size of capacity obturator, avoids the storage battery being chargedPress and cause the excessive problem of initial charge current when too low, with the lead-acid accumulator that is applicable to different rated capacities to initial charge electricityFlow big or small requirement, the rated capacity that General Requirements is battery with 0.1C～0.3C(C) big or small current charges, overcomeExisting charger is only suitable for the shortcoming of the lead acid battery charge of certain specified vol. In addition, by regulating square wave oscillation electricityThe frequency on road regulates the first adjustable potentiometer RP1Adjust the frequency of charging pulse, coordinate the adjusting of charge pulse duty cycle to makeThe size of initial charge current meets the requirements, and charging pulse frequency automatically reduces after can being full of electricity with battery, makes charged electricalThe mean value of stream within the unit interval reduces, and avoids battery overcharge, thereby has avoided charging circuit to work for a long time, reducesThe probability of long " thermal runaway " brought of charging interval and " sulfation ".
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all in essence of the present inventionWithin god and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in the protection domain of invention.
Claims (7)
1. the charging of the positive negative pulse stuffing of lead-acid accumulator and capacity prosthetic device, low frequency mains supply is inputted charging after rectifying and wave-filteringIn the charge circuit of device output circuit and battery BT composition, it is characterized in that: charger is provided with sample circuit sample circuitBe connected across the positive and negative output of output circuit for charger, one of the low-voltage output of sample circuit and the first function switchEnd connects, and the other end of described the first function switch is connected to the negative output terminal of output circuit for charger;
Between the positive and negative output of output circuit for charger, also cross-over connection has mu balanced circuit, the low-voltage output of described mu balanced circuitFor the power supply of square wave oscillation output circuit, described square wave oscillation output circuit output one tunnel and the first waveform changing circuitInput connects, and the output of described the first waveform changing circuit is connected with the control end of the second controlled switch, and described second is subject toControl switch is connected to battery BT two ends;
Another road of square wave oscillation output circuit output is connected with the input of the second function switch, described the second meritThe output of energy change-over switch is connected with the input of the second waveform changing circuit, the output of described the second waveform changing circuitBe connected with the control end of the first controlled switch, described the first controlled switch is connected on the charging of charger and battery BT composition and returnsLu Zhong;
Described the first waveform changing circuit is the second capacitor C2With the 5th resistance R5The differential circuit of composition, described the second waveform turnsChanging circuit is the first capacitor C1With the 6th resistance R6The differential circuit of composition, described the first controlled switch is N channel field-effect pipe
Q1, described the second controlled switch is P-channel field-effect transistor (PEFT) pipe Q2；
Described the first function switch and the second function switch are double-pole double control switch K, and described the first function conversion is openedClose total e end, d end, f and hold three binding posts, the total a end of described the second function switch, b hold, c holds three terminalsSon, the disconnecting link of the first function switch is connected with the disconnecting link of the second function switch, by same handle control.
2. the charging of the positive negative pulse stuffing of lead-acid accumulator according to claim 1 and capacity prosthetic device, is characterized in that: instituteState sample circuit by the first resistance R1, the second resistance R2, the 3rd resistance R3Be composed in series successively, wherein the first resistance R1FreedomTerminate at the positive output end of charger, the first resistance R1With the second resistance R2Public termination optically-coupled voltage negative feedback circuitInput, the second resistance R2With the 3rd resistance R3The normal open switch of common port string the first function switch after connect chargerNegative output terminal, the 3rd resistance R3The negative output terminal of free termination charger.
3. the charging of the positive negative pulse stuffing of lead-acid accumulator according to claim 1 and capacity prosthetic device, is characterized in that: instituteState mu balanced circuit by the 9th resistance R9With Zener diode DZChuan Lian Group becomes, the 9th resistance R9One end is connected on output circuit for chargerPositive output end, the 9th resistance R9Another termination Zener diode DZNegative electrode, described Zener diode DZAnode be connected on chargingThe negative output terminal of device output circuit, Zener diode DZNegative electrode be low-voltage output UCC, for square wave oscillation output circuit suppliesElectricity.
4. the charging of the positive negative pulse stuffing of lead-acid accumulator according to claim 1 and capacity prosthetic device, is characterized in that: instituteState square wave oscillation output circuit by 555 timers, the 7th resistance R7, the 8th resistance R8, the first commutation diode D1, second wholeStream diode D2, the first adjustable potentiometer RP1, the second adjustable potentiometer RP2, the 3rd capacitor C3, the 4th capacitor C4Composition, described inThe earth terminal ground connection of 555 timers, control end series connection the 3rd capacitor C3Rear ground connection, threshold value end is attempted by first with triggering inputAdjustable potentiometer RP1Centre tap, this first adjustable potentiometer RP1Centre tap series connection the 4th capacitor C4Rear ground connection, described inThe first adjustable potentiometer RP1The first stiff end be connected on the first adjustable potentiometer RP1Centre tap and the 4th capacitor C4ConnectionCircuit, described the first adjustable potentiometer RP1The second stiff end and the second adjustable potentiometer RP2Centre tap be connected;
Described the second adjustable potentiometer RP2The first stiff end and the first commutation diode D1Anode be connected, described the first rectificationDiode D1Negative electrode string the 8th resistance R8After connect the discharge end of 555 timers, the second adjustable potentiometer RP2The second stiff endWith the second commutation diode D2Negative electrode be connected, described the second commutation diode D2Anode connect the discharge end of 555 timers, instituteState discharge end series connection the 7th resistance R of 555 timers7After meet Zener diode DZNegative electrode be low-voltage output UCC。
5. the charging of the positive negative pulse stuffing of lead-acid accumulator according to claim 1 and capacity prosthetic device, is characterized in that: instituteOutput one road of stating 555 timers second capacitor C of connecting2After meet P-channel field-effect transistor (PEFT) pipe Q2Grid, described P-channel field-effect transistor (PEFT)Pipe Q2Drain electrode connect the negative pole of battery BT, the positive pole of described battery BT is connected on the positive output end of charger, battery BT justThe utmost point and P-channel field-effect transistor (PEFT) pipe Q2Source electrode between string have the 4th resistance R4, P-channel field-effect transistor (PEFT) pipe Q2Source electrode is just being connected on chargerOutput, described the 5th resistance R5Be connected to P-channel field-effect transistor (PEFT) pipe Q2Source electrode and grid, another road of 555 timer output endsGo here and there after the normally closed switch of the second function switch and meet N channel field-effect pipe Q1Grid, described the second function switchNormal open switch first capacitor C of connecting1After meet N channel field-effect pipe Q1Grid, N channel field-effect pipe Q1Grid string the 6th electricityResistance R6Rear ground connection, described N channel field-effect pipe Q1Source electrode connect ground connection after the negative output terminal of output circuit for charger, N ditch place where Taoist rites are performed effectShould manage Q1Drain electrode connect the negative pole of battery BT.
6. the charging of the positive negative pulse stuffing of lead-acid accumulator according to claim 1 and capacity prosthetic device, is characterized in that: instituteState charger and be also provided with rectifier filter circuit, described rectifier filter circuit is by the 3rd commutation diode D3With the 5thCapacitor C5Be composed in series successively, wherein the 3rd commutation diode D3Forward is serially connected with charger positive output circuit, the 5th capacitor C5AcrossBe connected on the positive and negative output of output circuit for charger.
7. the charging of the positive negative pulse stuffing of lead-acid accumulator according to claim 1 and capacity prosthetic device, is characterized in that: instituteState charger and be also provided with optically-coupled voltage negative feedback circuit, the input of described optically-coupled voltage negative feedback circuit and sampling electricityThe feedback on road detects output UfBe connected, the output of described optically-coupled voltage negative feedback circuit is connected to high frequency through power module and becomesDepressor T1Former limit, the main element of described optically-coupled voltage negative feedback circuit is photoelectrical coupler.
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| CN201610974374.2A CN106356968B (en) | 2016-11-07 | 2016-11-07 | Positive negative pulse stuffing charging and the capacity prosthetic device of lead-acid accumulator |
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| CN201610974374.2A CN106356968B (en) | 2016-11-07 | 2016-11-07 | Positive negative pulse stuffing charging and the capacity prosthetic device of lead-acid accumulator |
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| CN106787017A (en) * | 2017-03-09 | 2017-05-31 | 北京空间飞行器总体设计部 | A kind of Cross prevention of spacecraft lithium battery and the autonomous control method that restores electricity |
| CN107437641A (en) * | 2017-07-21 | 2017-12-05 | 洛阳彤辉电子科技有限公司 | Electric-bicycle storage-battery obturator and restorative procedure |
| CN107539143A (en) * | 2017-07-21 | 2018-01-05 | 洛阳彤辉电子科技有限公司 | Vehicular New-energy electric vehicle Intelligent pulse type charger and charging method |
| CN110323503A (en) * | 2019-07-31 | 2019-10-11 | 青岛鼎信通讯股份有限公司 | A kind of positive negative pulse stuffing and resonance wave combined type lead-acid accumulator repair system and method |
| CN112736303A (en) * | 2020-12-28 | 2021-04-30 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | Battery capacity recovery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106787017A (en) * | 2017-03-09 | 2017-05-31 | 北京空间飞行器总体设计部 | A kind of Cross prevention of spacecraft lithium battery and the autonomous control method that restores electricity |
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| CN109037808B (en) * | 2018-09-03 | 2023-06-20 | 大城绿川（深圳）科技有限公司 | Lead-acid storage battery repairing device for household small-capacity electric vehicle |
| CN110323503A (en) * | 2019-07-31 | 2019-10-11 | 青岛鼎信通讯股份有限公司 | A kind of positive negative pulse stuffing and resonance wave combined type lead-acid accumulator repair system and method |
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| CN112736303A (en) * | 2020-12-28 | 2021-04-30 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | Battery capacity recovery device |
| CN112736303B (en) * | 2020-12-28 | 2022-06-07 | 国创移动能源创新中心(江苏)有限公司 | Battery capacity recovery device |
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