The lossless repairing device of high-capacity sealed lead-acid battery
Technical field
The utility model relates to a kind of method with electronic impulse and removes the inner lead sulfate crystallization of polar plate of lead acid storage battery, recovers the lossless repairing device of the prosthetic device, particularly a kind of high-capacity sealed lead-acid battery of battery capacity.
Background technology
The use of lead acid accumulator is preserved stand-by very general, employed lead acid accumulators of department such as lead acid accumulator production factory, mine, auto repair for example, owing to be subjected to climatic environment, frequently have a power failure and undercharge and storage battery are in the influence of dormant state for a long time, can generate a kind of thick hard lead sulfate crystalline solid gradually at the accumulator pole intralamellar part, stopped up the spongy Pb micropore of negative plate, hinder the mutual conversion of electric energy, chemical energy, cause that battery capacity descends gradually even scraps.At present, adopt the electronic impulse mode to remove the lead sulfate crystallization of polar plate of lead acid storage battery inside, generally acknowledged gradually and application with the apparatus that recovers battery capacity, to address this problem.But such apparatus is to adopt the output of small-pulse effect electric current, and can not adjust pulse current automatically to reach efficient reparation by battery status; Therefore, in above-mentioned industry, when using such apparatus and carrying out the reparation of high-capacity sealed formula lead acid accumulator, often need to continue some months even just can embody effect half a year, greatly reduce remediation efficiency.
Another kind of recovery scenario is disclosed in online repair system of Chinese patent 02160469.X intelligent battery and method, repair system comprises mops up-resonance frequency module and synchronous-interference inhibition module, by mop up-resonance frequency module provides a variable frequency to battery, width, the cell voltage difference of the pulse-type disturbance signal of amplitude check and analysis simultaneously battery pack and the internal resistance variations of flux of behindhand battery, use then and have characteristic frequency, the resonant impulse of width and amplitude range, to repair behindhand battery and to recover the consistency and the reliability of battery pack, utilize the floating current of ups system to remove the lead sulfate crystallization and carry out online reparation.But the power consumption of its whole system is little, and is faint to the pulse current that the storage battery that is repaired is supplied with, because the internal resistance of high capacity cell all is less than several milliohms usually, with this signal and receive the battery two ends, all sponged by battery itself greatly.Also be difficult to the ups system floating current is become the pulse current that is subjected to its variable frequency, width, amplitude control.In addition, because too fast pulse frequency, the speed of chemical reaction does not catch up with the speed of electric pulse in the battery, reduces remediation efficiency on the contrary.
The utility model content
The utility model purpose provides a kind of lossless repairing device of high-capacity sealed lead-acid battery, exports the inefficient problem of pulse to overcome small-pulse effect electric current prosthetic device, and guarantees the harmless reparation of lead acid accumulator.Output peak pulse electric current can be adjusted automatically according to the terminal voltage of storage battery, repairs pulse current work down so that the storage battery that is repaired is in the maximum that can accept, has improved efficient.Strict control battery terminal voltage in repair process can be not excessive because of pulse current, the too high and damage battery of battery terminal voltage.Realization does not have the harmless reparation of influence to the pole plate not damaged, to the life-span.
The technical solution adopted in the utility model is: the utility model is the lossless repairing device of high-capacity sealed lead-acid battery, comprise DC power supply circuit, it is characterized in that: also comprise Single-chip Controlling treatment circuit (hereinafter to be referred as single chip circuit), PWM waveform shaping drive circuit (hereinafter to be referred as plastic drive circuit), controlled electronic switch (hereinafter to be referred as electronic switch), described DC power supply circuit links to each other with described electronic switch, and links to each other with the battery that is repaired through described electronic switch; Described single chip circuit links to each other with described electronic switch through described plastic drive circuit.By described DC power supply circuit required direct current is supplied with described electronic switch, be transformed into pulse current through described electronic switch and supply with the battery that is repaired; After computing, export PWM (pulse width modulation) pulse by described single chip circuit according to detected voltage, the temperature data that is repaired battery, control the break-make and the control of described controlled electronic switch through described plastic drive circuit and repair the pulse current size.
Also has the display circuit that is subjected to described single chip circuit control, with display working condition.
Also have polar protective circuit (hereinafter to be referred as protective circuit), prevent that user misoperation from connecing anti-ballistic causing with battery polar and damaging this prosthetic device.
Described Single-chip Controlling treatment circuit comprises:
Single-chip microcomputer U1, the operation of process control system;
The clock circuit of being made up of capacitor C 5, C6, quartz (controlled) oscillator Y1 links to each other with single-chip microcomputer, offers the clock signal that single-chip microcomputer is handled usefulness;
By comprising that the voltage reference circuit that resistance R 1, R2, R3, RP1, pressurizer U2 form links to each other with single-chip microcomputer 1, offer the accurate reference voltage that single-chip microcomputer is handled usefulness;
By comprising that the ambient temperature detection circuit that resistance R 4, RT1, R5, capacitor C 7 are formed links to each other with single-chip microcomputer, convert ambient temperature to voltage and offer single-chip microcomputer 1, single-chip microcomputer judges that according to temperature voltage and the terminal voltage that is repaired battery the pwm pulse of output variable duty ratio passes to plastic drive circuit;
By comprising that the condition indication circuit that resistance R 18, R19, R20, R21, diode D5, D6, D7, D8 form links to each other display working condition with single-chip microcomputer 1.
Described PWM (pulse width modulation) drive waveform shaping circuit comprises the inverting amplifier circuit of being made up of resistance R 6, R7, triode Q4, links to each other with single-chip microcomputer 1, amplifying from the pwm pulse paraphase of single-chip microcomputer output; By acceleration and shaping circuit that resistance R 8, capacitor C 8, trigger U3 (U3D, U3E, U3F) form, its input links to each other with inverting amplifier circuit, and output links to each other with electronic switch.So that pwm pulse is supplied with electronic switch do driving usefulness after the paraphase shaping again.
Described controlled electronic switch comprises switching tube Q5, and its input links to each other with acceleration and shaping circuit, and output links to each other with the accumulator direct current supply that is repaired.So that being provided to the storage battery that is repaired, in check pwm pulse repairs electric current.
Described display circuit comprises single-chip microcomputer U6, quartz (controlled) oscillator Y2, capacitor C 10, C11, exclusion PR1, R22, R23, R24, R25, triode Q7, Q8, Q9, Q10, charactron DS1A, DS2A, DS3A, DS4A, and the I/O mouth of single-chip microcomputer U6 is connected with corresponding data mouth and the I/O mouth of single-chip microcomputer U1 respectively with data port; Making voltage after treatment by single-chip data mouth and the defeated data of coming of I/O oral instructions shows.
Described protective circuit comprises diode D3, resistance R 9, R10, triode Q6, diode D4, relay K 1, resistance R 11, diode D10; diode D3 links to each other with single-chip microcomputer U1; the normally opened contact of relay K 1 links to each other with electronic switch with DC power supply, with this DC power supply of break-make.When correct connection battery polar, relay K 1 adhesive; When reversal connection, not conducting of diode D3, triode Q6 ends, and relay K 1 is failure to actuate, and no electricity is added to switching tube Q5, protects its safety, and diode D10 sends caution because of instead lighting partially simultaneously.
Every prosthetic device can have single chip circuit, plastic drive circuit, electronic switch, the protective circuit of two or more sets same structures, and DC power supply can be repaired two or more high-capacity sealed lead-acid batteries simultaneously, can not produce interference each other.Display circuit is shared, and the I/O port connects the single chip circuit 1 of a plurality of same circuits structures, with the output of multichannel same structure, repairs a plurality of batteries simultaneously.
The utility model adopts and comprises circuit such as single chip circuit, plastic drive circuit, electronic switch, by DC power supply circuit direct current is supplied with electronic switch, is transformed into pulse current through electronic switch and supplies with the battery that is repaired, the reparation of charging; Be repaired the voltage of battery, the pulse that temperature data output pulse width after computing is adjustable by single chip circuit according to detected, control the break-make and the control of described controlled electronic switch through described plastic drive circuit automatically and repair the pulse current size.The frequency of the pulse of single-chip microcomputer output is changeless, have only pulse duration changing, utilize electronic switch in continuous conducting and between the off period, harmonic oscillation frequency that rising edge of a pulse decomposes and lead sulfate molecule produce resonance, under the effect of pulse current, thick lead sulfate crystallization is diminished gradually, disappear, recover battery capacity, make because of sulfuration to cause capacity to descend or the storage battery scrapped can utilize again.Under the control of single chip circuit, output peak pulse electric current can be according to the terminal voltage of storage battery, automatically adjust by plastic drive circuit, electronic switch, repair pulse current work down, significantly improved efficient so that the storage battery that is repaired is in the maximum that can accept.In repair process by the strict control of single-chip microcomputer battery terminal voltage, can be not excessive because of pulse current, the too high and damage battery of battery terminal voltage.Realization does not have the harmless reparation of influence to the pole plate not damaged, to the life-span.
In the utility model device; under the control of single-chip microcomputer; plastic drive circuit, electronic switch, protective circuit and the DC power supply that can have two or more sets same structure circuit can be repaired two or more high-capacity sealed formula lead acid accumulators simultaneously, can not produce interference each other.
In sum, the utility model output peak pulse electric current can be adjusted automatically according to the terminal voltage of storage battery, repair pulse current work down so that the storage battery that is repaired is in the maximum that can accept, improved efficient, overcome the inefficient problem of small-pulse effect electric current prosthetic device output pulse; And guarantee the harmless reparation of lead acid accumulator, can strict control battery terminal voltage in repair process, can be not excessive because of pulse current, battery terminal voltage is too high and the damage battery realizes not having to the pole plate not damaged, to the life-span the harmless reparation of influence.The utility model is applicable to that departments such as lead acid accumulator production factory, mine, auto repair, electric power, communication use.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Code name explanation among the figure
1 single chip circuit (Single-chip Controlling treatment circuit) 2 drives shaping circuit (PWM waveform shaping drive circuit)
3 electronic switches (controlled electronic switch), 4 display circuits, 5 protective circuits (polar protective circuit)
6 DC power supply circuit 6A DC power supply 7 are repaired battery
The B1 AC transformer
C0, C1~C11 capacitor C ON3~CON6 connector
D1~D4 diode D5~D10 light-emitting diode DS1A~DS4A is total to cloudy charactron for eight sections
K1, K2 direct current relay POWER1 constant voltage and current limiting formula Switching Power Supply
Q1, Q3, Q4, Q6~Q10 triode, Q2, Q5 switching tube (field effect transistor)
R1~R25 resistance R P1 potentiometer PR1 exclusion RT1 negative tempperature coefficient thermistor
U1 single-chip microcomputer U2 pressurizer U3 Schmidt trigger
U4, U5 three terminal regulator
U6 single-chip microcomputer Y1, Y2 quartz (controlled) oscillator
Embodiment:
Be illustrated in figure 1 as circuit block diagram of the present utility model, comprise single chip circuit 1, plastic drive circuit 2, electronic switch 3, DC power supply circuit 6, by DC power supply circuit 6 required direct current is supplied with electronic switch 3, be transformed into pulse current through electronic switch 3 and supply with the battery 7 that is repaired; After computing, export pwm pulse by single chip circuit 1 according to detected voltage, the temperature data that is repaired battery, control the break-make of electronic switch 3 and the size that pulse current is repaired in control through plastic drive circuit 2.
Also has the display circuit 4 that is subjected to single chip circuit 1 control by I/O mouth and DATA (data) mouth.
As Fig. 2, also have protective circuit 5, prevent that user misoperation from connecing anti-ballistic causing with battery polar and damaging this prosthetic device.
Be circuit theory diagrams of the present utility model as shown in Figure 2, single chip circuit 1 includes:
Single-chip microcomputer U1 (PIC16F73);
The clock circuit of being made up of capacitor C 5, C6, quartz (controlled) oscillator Y1 links to each other with single-chip microcomputer U1, and the clock signal that provides single-chip microcomputer U1 to handle is provided;
The voltage reference circuit of being made up of resistance R 1, R2, R3, potentiometer RP1, pressurizer U2 links to each other with single-chip microcomputer U1, and the accurate reference voltage that provides single-chip microcomputer to handle is provided.
The ambient temperature detection circuit of being made up of resistance R 4, R5, thermistor RT1, capacitor C 7 links to each other with single-chip microcomputer U1, convert ambient temperature to voltage, single-chip microcomputer 1 is judged according to temperature voltage that records and the terminal voltage that is repaired battery, the pwm pulse of output variable duty ratio.
The condition indication circuit of being made up of resistance R 18, R19, R20, R21, diode D5, D6, D7, D8 links to each other with LED1,2,3,4 ports of single-chip microcomputer U1, shows the operating state of this device.
Described plastic drive circuit 2 comprises inverting amplifier circuit and acceleration and shaping circuit; Inverting amplifier circuit by resistance R 6, triode Q4, resistance R 7 are formed links to each other with the Pwm1 port of single-chip microcomputer U1, will amplify from the pwm pulse paraphase of single-chip microcomputer U1 output; By acceleration and shaping circuit that resistance R 8, capacitor C 8, trigger U3 form, its input links to each other with inverting amplifier circuit, and output links to each other with electronic switch 3, so that pwm pulse is supplied with electronic switch 3 do driving usefulness after the paraphase shaping again.Schmidt trigger U3 has U3D, U3E, the U3F of 3 parallel connections, and purpose is to strengthen the ability that it drives electronic switch.
Described electronic switch 3 comprises switching tube Q5 (IRF3205), and its input links to each other with trigger U3 in the shaping circuit 2, and output links to each other with storage battery that is repaired and DC power supply, repairs electric current so that in check pulse to be provided to the battery 7 that is repaired.
Described display circuit 4 comprises single-chip microcomputer U6 (PIC16F74), quartz (controlled) oscillator Y2, capacitor C 10, C11, resistance PR1, R22, R23, R24, R25, triode Q7, Q8, Q9, Q10, charactron DS1A, DS2A, DS3A, DS4A, and the I/O mouth of single-chip microcomputer U6 is connected with corresponding data mouth and the I/O mouth of single-chip microcomputer U1 respectively with data port; Data port and the defeated data of coming of I/O oral instructions by single-chip microcomputer 1 are done the voltage demonstration after treatment.Specifically be connected to: the connector CON4 of the FPDP of single-chip microcomputer U1 is connected with the connector CON5 of display circuit 4, and I/O mouth disp1, disp2 are connected with I/O mouth disp1, the disp2 of display circuit 4.Display circuit adopts mode in turn to show the magnitude of voltage of every Battery pack, and charactron DS1A is responsible for showing current sequence number (group number), and charactron DS2A, DS3A, DS4A are responsible for showing the magnitude of voltage of battery.
Described protective circuit 5 comprises diode D3, resistance R 9, R10, triode Q6, diode D4, relay K 1, resistance R 11, diode D10; Diode D3 links to each other with the A/D2 mouth of U1, and the normally opened contact of relay K 1 links to each other with the switching tube Q5 of electronic switch 3, with this dc charging power supply of break-make.Binding post CON7 in the protective circuit 5 be repaired battery and be connected: promptly 1 of binding post CON7,2 pin link to each other with the short circuit of anode post, and 3,4 pin of CON7 link to each other with the short circuit of battery cathode post; When correct connection battery polar, relay K 1 adhesive; When reversal connection, D3 is obstructed, and triode Q6 ends, and relay K 1 is failure to actuate, and no electricity is added to switching tube Q5, the safety of protection switch pipe, and diode D10 sends caution because of instead lighting partially simultaneously.
Single-chip microcomputer U1 can control simultaneously by the plastic drive circuit 2 of two groups of same structures, electronic switch 3, protective circuit 5 and DC power supply 6A, can repair two high-capacity sealed formula lead acid accumulators simultaneously, can not produce interference each other.In the present embodiment, the upper left corner shows plastic drive circuit, electronic switch, protective circuit and another DC power supply 6A (not shown) of another group identical set in Fig. 2, uses as the reparation of another Battery pack.Display circuit 4 is shared, and the I/O port can connect the single chip circuit 1 of 4 same circuits structures, and the lossless repairing device of every high-capacity sealed lead-acid battery can reach the output of 8 road same structures at most, can repair 8 high-capacity lead-acid storage batteries simultaneously.
Be depicted as to system's direct current power source supplying power circuit 6 as Fig. 2 upper right corner, when mains switch SW1 is closed, civil power one tunnel through DC power supply 6A (charging current is provided) be transformed into the constant voltage electric current that is fit to the maintenance battery (+5V/5A).Another road (Control current is provided) obtains DC18V left and right sides voltage through fuse F2 and power transformer B1 output AC15V voltage after bridge rectifier BR1 rectification C0 filtering, obtain 12V voltage through the U4 voltage stabilizing and supply with relay K 1 coil and plastic drive circuit 2.After the U5 voltage stabilizing, obtain 5V voltage again and supply with single chip circuit 1 and display circuit 4.
When the work of this device, 1,2 pin of the binding post CON7 in the protective circuit 5 link to each other with the short circuit of anode post, and 3,4 pin link to each other with the short circuit of battery cathode post; Cell voltage directly enters the A/D mouth of U1 through 2,3 lines of CON7, reduces the measure error that the line stopband comes.Polarity connects when correct, the diode D3 positively biased conducting in the polar protective circuit 5, cell voltage makes triode Q6 conducting through R9, R10 dividing potential drop, relay K 1 coil gets electric, the closing of contact, make electronic switch 3 electric, voltage is added to the Q5 drain electrode.Simultaneously, the port A/D2 of single-chip microcomputer U1 (another road is A/D1) detects cell voltage, begin startup work, and with detected cell voltage, (RT1 records the battery context temperature voltage by thermistor, import into through the Tsense of single-chip microcomputer U1 port with the R4 dividing potential drop) be input to U1, make comparisons with the float charge voltage of setting.
If the actual measurement voltage of battery is lower than the float charge voltage of setting, then single-chip microcomputer U1 is 120uS through port Pwm1 (another road is Pwm2) output in a string cycle, and duty ratio is that 95% control impuls is supplied with the Q4 in the plastic drive circuit 2; Export high level simultaneously, make diode D5 light indicating operating status.If battery actual measurement voltage is higher than the float charge voltage of setting, then exporting high level lights diode D6, single-chip microcomputer U1 output simultaneously is in the minimizing pulse duration (duty ratio) of constant situation downstairs formula of cycle, minimum duty cycle reduces to 5%, if this moment, battery terminal voltage also continued to rise when surpassing stop voltage, the port Pwm1 of single-chip microcomputer U1 stops output, and electronic switch 3 turn-offs, the battery two ends that do not have pulse current to be added to be repaired, battery terminal voltage falls after rise.
Resistance R 6, R7, the triode Q4 paraphase of pwm pulse in plastic drive circuit 2 by single-chip microcomputer U1 output amplified.Acceleration of being made up of resistance R 8, capacitor C 8, trigger U3 and shaping circuit 2 are supplied with electronic switch after the paraphase shaping again with pwm pulse and are driven, controlled the continuous conducting of switching tube Q5 and ended, made the direct current of DC power supply 6A become in check pulse current and be added to the two ends that are repaired storage battery.
After single-chip microcomputer U1 does the A/D conversion with detected battery virtual voltage, interconnect by the connector CON4 of FPDP and the connector CON5 of display circuit 4, I/O mouth disp1, the disp2 of I/O mouth disp1, disp2 and display circuit 4 are connected to each other, and transmission communication data, the real-time battery terminal voltage that single-chip microcomputer 1 is handled shows (DS2A, DS3A, DS4A among the figure) by the charactron in the display circuit 4 and illustrates, and allows the user get information about the reparation situation of battery.
The utility model is through using contrast, and effect is as follows:
Compare with existing small-pulse effect electric current prosthetic device, because the with good grounds cell voltage of the utility model device and environment temperature auto-adjustment control are repaired the single-chip microcomputer U1 of pulse current, so it is very big that its inceptive impulse electric current can be chosen, and reaches 0.1 %~0.5%C10(C
10Nominal capacity for battery 10 hour rate currents discharges) even bigger, can accelerate the maintenance process. The lead sulfate crystallization that 200Ah~1000Ah only need just can remove clean inside battery in 48 hours to 168 hours. Work as terminal voltage When reaching sealed cell gassing voltage, monolithic U1 can reduce the dutycycle of control impuls automatically, namely reduces electric current. Very To cutting off electric current fully, damage to sealed cell prevents from overcharging; And existing little current impulse prosthetic device, because Taking the later stage into account overcharges to the impact of battery, and its pulse current is generally chosen very little, about 0.01%~0.05%C10, from Begin to guarantee that also battery can not overcharge, but remediation efficiency to fall obviously to the small-pulse effect electric current battery being repaired eventually Low, the lead-acid accumulator of same capability often needs just can embody effect more than three months.