CN102832664A - Variable frequency charger - Google Patents
Variable frequency charger Download PDFInfo
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- CN102832664A CN102832664A CN201210295561XA CN201210295561A CN102832664A CN 102832664 A CN102832664 A CN 102832664A CN 201210295561X A CN201210295561X A CN 201210295561XA CN 201210295561 A CN201210295561 A CN 201210295561A CN 102832664 A CN102832664 A CN 102832664A
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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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a variable frequency charger comprising a charger body, a switching device, a main output voltage acquisition module, a charge signal acquisition module, a voltage control module, a microcontroller, a stabilized voltage supply module, and a current control module. The charger body is used for charging a battery. The switching device is used for turning on and turning off the charger body. The main output voltage acquisition module is used for acquiring output voltage of the charger body. The charge signal acquisition module is used for acquiring charging state of the charger body and judging whether the battery is fully charged or not. The voltage control module is used for controlling charging voltage of the charger body. The microcontroller is used for intelligently controlling the charger body. The stabilized voltage supply module is used for supplying working voltage to the microcontroller. The current control module is used for controlling charging current of the charger body. The variable frequency charger is capable of dynamically adjusting the charging voltage and the charging current according to the charging state of a plumbic acid or lithium battery, setting current square waves with different frequencies, and charging at different pauses, namely charging intermittently during charging process of the battery.
Description
Technical field
Invention relates to a kind of charger, relates in particular to a kind of frequency conversion charger.
Background technology
Existing rechargeable battery mainly comprises plumbic acid rechargeable battery and lithium battery.These rechargeable batteries are widely used in the equipments such as mobile digital product, electric tool, electric bicycle, electric automobile, golf cart, electronic big bus.Whether can fast above-mentioned two kinds of rechargeable batteries be full of electricity, and make the battery after the charging have the long discharge time and the useful life of prolongation, be the important symbol of judging that charger is good and bad.
For lead-acid battery, its rechargeable electrochemical reactional equation is:
2PbSO4+2H2O+2e=PbO2 (positive pole)+Pb (negative pole)+2H2SO4 (electrolyte)
Rechargeable electrochemical is reflected at positive and negative polarities to carry out.Concentration is the highest at the two poles of the earth for the H2SO4 that reaction generates, and distributes to concentration low district diffusion by concentration gradient, make water contact the two poles of the earth that the discharge back generates and be electrolyzed to produce H+ and O2, respectively with both positive and negative polarity on the PbSO4 reaction.Diffusion of H2SO4 concentration and H+, O2 migrate to the two poles of the earth needs the regular hour.And existing charger charges to battery without a break.This lasting charging meeting is electrolysis H2O constantly, but because the oxidation/reduction reaction of positive and negative electrode has little time to carry out, therefore can cause H2, O2 to overflow, and causes the electrolyte dehydration, and the PbSO4 that discharge back, the two poles of the earth is generated can not be generated PbO2, Pb and H2SO4 by reaction.Like this, electrolyte reduces, and it is just much lower than the ability of charging last time that battery whenever fills primary energy.
For the charging of lithium battery, existing charger adopts big electric current to carry out.Lithium battery all has a large amount of lithium ions because of both positive and negative polarity, and fail safe becomes maximum key problem.Continue large current charge, will make the both positive and negative polarity reaction insufficient, cause battery to generate heat naturally, even under limiting condition, can cause the lithium battery blast, thereby bring serious safety problem.
In sum, existing charger is constantly and with constant electric current rechargeable battery to be charged, and the charging quality that above-mentioned rechargeable battery therefore just can occur descends, even causes the serious problems of battery explosion.
Summary of the invention
The frequency conversion charger that the object of the present invention is to provide a kind of charging current, voltage variable and charging process intermittently to pause, it has, and charging rate is fast, the battery behind the charge capacity foot, charging does not have crystallization, do not dewater, athermic advantage.
For realizing this purpose, the present invention adopts following technical scheme:
A kind of frequency conversion charger comprises: to the charger of battery charge; The switching device of opening and closing charger; Gather the main output voltage acquisition module of the output voltage of charger; The charged state of gathering charger is so that judge the charging signals acquisition module whether battery is full of; The voltage control module of the charging voltage size of control charger; Charger is carried out the microcontroller of Based Intelligent Control; The power module of voltage regulation of operating voltage is provided for microcontroller; And the current control module of the charging current size of control charger.
Compared with prior art, the present invention possesses following advantage:
The frequency conversion charger of frequency conversion square wave batch (-type) intelligent charge provided by the invention; It can be according to plumbic acid or lithium battery state-of-charge; Dynamically adjust charging current, charging voltage, and set the electric current square wave of different frequency, in to battery charging process, giving different pauses is the batch (-type) charging.
[description of drawings]
Fig. 1 is the block diagram of frequency conversion charger of the present invention;
Fig. 2 is the detailed structure view of frequency conversion charger shown in Figure 1;
Fig. 3 is the main program flow chart of frequency conversion charger of the present invention; And
Fig. 4 is the timer interrupt routine flow chart of frequency conversion charger of the present invention.
[embodiment]
Electrolyte reduces in the lead-acid battery charging process in order to solve; The problem that energy reduces gradually; The frequency conversion charger that the present invention provides a kind of charging current, voltage variable and charging process intermittently to pause, it has, and charging rate is fast, the battery behind the charge capacity foot, charging does not have crystallization, do not dewater, athermic advantage.
In the process of frequency conversion charger provided by the invention to the lead-acid battery charging; Fill the air the dynamic process of diffusion according to lead-acid battery polarization response and ion; The electric current square wave of setting different frequency carries out dwell type charging at intermittence to lead-acid battery, and charge frequency and dead time are carried out necessary variation with concentration of electrolyte is different, thereby the minimizing lead-acid battery is a gassing exsiccation phenomenon; The life-span of battery is prolonged, and the electric weight of charging is sufficient; And the charging interval delay for compensatory pause pauses and causes can improve charging current, thereby promote the average charge rate by a relatively large margin, has accelerated charging rate.
Simultaneously; The both positive and negative polarity that causes for solution lithium battery large current charge reacts insufficient; The situation that battery generates heat even explodes naturally, frequency conversion charger provided by the invention adopts intermittent charge, that is in charging process, gives necessary pause; Thereby under the advantage that guarantees big electric current quick charge, also obviously be of value to lithium battery safety.Along with battery charge state in the charging process changes, dynamically adjust charge frequency and dead time.
Thus; The present invention provides a kind of frequency conversion charger of frequency conversion square wave batch (-type) intelligent charge; It can be according to plumbic acid or lithium battery state-of-charge; Dynamically adjust charging current, charging voltage, and set the electric current square wave of different frequency, in to battery charging process, giving different pauses is the batch (-type) charging.
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
According to one embodiment of present invention, a kind of frequency conversion charger with frequency conversion square wave batch (-type) intelligent charge comprise the charger 1, the switching device 2 that is used for opening and closing charger 1 that are used for battery is charged such as lead-acid battery or lithium battery, be used to gather the output voltage of charger 1 main output voltage acquisition module 3, be used to gather the charged state of charger 1 so as to judge charging signals acquisition module 4 that whether battery be full of, be used to control the charging voltage size of charger 1 voltage control module 6, be used for to charger 1 carry out Based Intelligent Control microcontroller 7, be used to the current control module 8 that microcontroller 7 provides the power module of voltage regulation 5 of operating voltage and is used to control the charging current size of charger 1.
Said charger 1 is by pulse width modulating chip 12 control, and have main voltage output end 14, output voltage between+7 volts to+30 volts boost voltage output 16 and have the charged state output 18 that charged state is indicated.Said boost voltage output 16 is used to microcontroller 7 power supplies.Main voltage output end 14 is used under microcontroller 7 controls, charging the battery through switching device.In addition, said pulse width modulating chip 12 has output current adjustable side 124 and output voltage adjustable side 122.
Said microcontroller 7 has first input/output terminal 72, second input/output terminal 71, the 3rd input/output terminal 73, the 4th input/output terminal 75, the first analog-to-digital conversion end 74, the second analog-to-digital conversion end 76 and power input 78.
Said switching device 2 has input 22, output 24 and control end 26.Said input 22 is connected with the main voltage output end 14 of charger 1, and output 24 is as the voltage output end of frequency conversion charger.Said control end 26 is connected with first input/output terminal 72 of microcontroller 7.The control of the hard to bear microcontroller 7 of its ability, the main voltage output end 14 of unlatching or charge closing device 1 is realized charging and pause to battery.
Said main output voltage acquisition module 3 comprises resistance R 1, resistance R 2, resistance R 3 and capacitor C 5.Wherein, the output 24 of a termination switching device 2 of resistance R 1, the other end are through resistance R 2 ground connection, and the non-earth terminal of resistance R 2 is connected with the first analog-to-digital conversion end 74 of microcontroller 7 through resistance R 3, and the said first analog-to-digital conversion end 74 is through capacitor C 5 ground connection simultaneously.The voltage of the main voltage output end 14 of charger 1 changes the voltage swing that microcontroller 7 can be discerned into after resistance R 1 and resistance R 2 dividing potential drops.Said capacitor C 5 has the filtering clutter, the effect of stable input voltage signal is provided for microcontroller 7.Microcontroller 7 is in the magnitude of voltage of the main voltage output end 14 that detects charger 1 under the opening at switching device 2; And be in the actual voltage value that detects the battery that is connected under the closed condition at switching device 2.
Said charging signals acquisition module 4 comprises resistance R 4, resistance R 5, resistance R 6 and capacitor C 7.Wherein, the charged state output 18 of a termination charger 1 of resistance R 4, the other end is through resistance R 5 ground connection; The second analog-to-digital conversion end, 76, the second analog-to-digital conversion ends 76 that the non-earth terminal of resistance R 5 is connected to microcontroller 7 through resistance R 6 are through capacitor C 7 ground connection.Microcontroller 7 detects the charged state signal of charger 1 when switching device 2 is in opening.This module 4 combines with main output voltage detection module 3 to judge that the frequency conversion charger charges, has been full of electricity or do not connect the various situation of battery.
Said power module of voltage regulation 5 comprise have input 522, voltage stabilizing chip 52, capacitor C 1, capacitor C 2 and the capacitor C 3 of output 524 and earth terminal 526.Wherein, The input 522 of said voltage stabilizing chip 52 connects the boost voltage output 16 of charger 1, and through capacitor C 1 ground connection, output 524 is connected with the power input 78 of microcontroller 7; And through ground connection after capacitor C 2 and the C3 parallel connection, said earth terminal 526 is ground connection then.This module 5 provides normal operating voltage for microcontroller 7.
Said voltage control module 6 comprises triode Q1, variable resistor VR1, resistance R 9 and resistance R 10.Wherein, The base stage of said triode Q1 is connected to second input/output terminal 71 of microcontroller 7 through resistance R 10; The grounded emitter of said triode Q1; The collector electrode of said triode Q1 is connected to the end of variable resistor VR1, and the variable resistor VR1 other end is connected to the output voltage adjustable side 122 of the pulse width modulating chip 12 of charger 1, and resistance R 9 is connected in parallel between triode Q1 base stage and the emitter.This module 6 can make two kinds of different voltages with different of frequency conversion charger output, and can change voltage swing through regulating variable resistor VR1.
Said current control module 8 comprises triode Q2, variable resistor VR2, resistance R 11 and resistance R 12.Wherein, The base stage of said triode Q2 is connected to the 3rd input/output terminal 73 of microcontroller 7 through resistance R 12; The grounded emitter of triode Q2; And the collector electrode of triode Q2 is connected to the end of variable resistor VR2, and the variable resistor VR2 other end is connected to the output current adjustable side 124 of the pulse width modulating chip 12 of charger 1.Resistance R 11 is connected in parallel between the base stage and emitter of triode Q2.This module 8 can make two kinds of different electric currents of frequency conversion charger output under the control of microcontroller 7, regulate variable resistor VR2 and can change size of current.
Preferably, said frequency conversion charger further comprises and is used for powering on and the auditory tone cues module 9 that battery has been full of to user prompt frequency conversion charger start through alternative sounds.
Said auditory tone cues module 9 comprises triode Q3, resistance R 13, resistance R 14 and buzzer Q4.Wherein, said triode Q3 base stage is connected to the 4th input/output terminal 75 of microcontroller 7 through resistance R 13, the grounded emitter of triode Q3, and collector electrode is connected to the end of buzzer Q4, and the other end of buzzer Q4 is connected with the power input 78 of microcontroller 7.Resistance R 14 is connected in parallel between triode Q3 base stage and the emitter.Twice sound of this module 9 outputs representes that the frequency conversion charger started shooting and can normally move, and exports a sound and representes that then the frequency conversion charger is full of battery.
The course of work of frequency conversion charger of the present invention is described below.
With reference to the flow chart shown in the modular structure figure shown in Fig. 1-2 and Fig. 3-4; At first; Said frequency conversion charger connects power supply; Charger 1 gets electric, and main voltage output end 14 output voltages are to the input 22 of switching device 2, and the voltage that 16 outputs of boost voltage output are+7 volts to+30 volts is microcontroller 7 power supplies after power module of voltage regulation 5 step-downs.
Get into main program: judge that the voltage detecting sign is true and false; If voltage detecting is masked as very; Start the magnitude of voltage of analog to digital converter sampling resistor R1 and resistance R 2 junctions; Calculate the magnitude of voltage of resistance R 1 and switching device 2 junctions (being the output of frequency conversion charger) through the electric resistance partial pressure ratio, resetting voltage detects sign, and it is true and false to judge that indicator light detects sign; If voltage detecting is masked as vacation, it is true and false to judge that directly indicator light detects sign.If it is false that indicator light detects sign, it is true and false that directly the judgement state switches the permission sign; If detecting, indicator light is masked as very; Start the magnitude of voltage of analog to digital converter sampling resistor R4 and resistance R 5 junctions; Through the magnitude of voltage of electric resistance partial pressure than the junction of the charged state output 18 that calculates resistance R 4 and charger 1; Homing light detects sign, and it is true and false that the judgement state switches the permission sign.Allow sign false if state switches, directly return main program, carry out circulation next time; If true, judge whether to charge, if charge, whether judge frequency conversion charger output end voltage greater than threshold voltage 3, if greater than threshold values 3, then make the frequency conversion charger get into slow filling the charging stage, return main program, carry out circulation next time; If be not more than threshold values 3, judge that output end voltage whether between threshold values 3 and threshold values 2, if between threshold values 3 and threshold values 2, then makes the frequency conversion charger get into and puts down and fill the charging stage, return main program, execution circulates next time; If not between threshold values 3 and threshold values 2, judge that output end voltage whether between threshold values 2 and threshold values 1, if between threshold values 2 and threshold values 1, then makes the entering of frequency conversion charger gush and fills the charging stage, return main program, execution circulates next time; If not between threshold values 2 and threshold values 1, then make the frequency conversion charger get into the preliminary filling charging stage, return main program, carry out circulation next time; If, whether do not judge output end voltage, if greater than threshold values 4 greater than threshold values 4 in charging; Then make the frequency conversion charger get into the floating charge stage; Microcontroller 7 makes buzzer Q4 send prompt tone one time to the square wave that resistance R 13 output certain frequency certain time length once circulate, and the expression battery is full of; Return main program, carry out circulation next time; If be not more than threshold values 4, judge that output end voltage whether between threshold values 4 and threshold values 5, if between threshold values 4 and threshold values 5, then makes the frequency conversion charger entering preliminary filling charging stage, return main program, execution circulates next time; If not between threshold values 4 and threshold values 5, then make the frequency conversion charger get into the unloaded stage, return main program, carry out circulation next time.
If the frequency conversion charger is in the preliminary filling charged state, judge to fill/stop to indicate true and falsely that be masked as very if fill/stop, the output high level is to resistance R 10; Make triode Q1 conducting, adjustable resistance VR1 work reduces the resistance of the voltage output adjustable side 122 of pulse width modulating chip 12 in the charger 1, control charger 1 output charging voltage; Resetting voltage detects sign, and the output high level is opened the output of frequency conversion charger to switching device 2; Make the frequency conversion charger to the access battery charge, the set indicator light detects sign, and whether judgement time 1 arrives; If the time 1 is less than, directly interrupt returning, continue to carry out main program; If the time 1 arrives, reset and fill/stop sign, interrupt returning, continue to carry out main program; Be masked as vacation if fill/stop, homing light detects sign, and output low level is to switching device 2; Close the output of frequency conversion charger, suspend the frequency conversion charger to the access battery charge, set voltage detecting sign; Whether judgement time 2 arrives; If the time 2 is less than, directly interrupt returning, continue to carry out main program; If the time 2 arrives, sign is filled/stops in set, interrupts returning, and continues to carry out main program.
If the frequency conversion charger is in to gush and fills charged state, judge to fill/stop to indicate true and falsely that be masked as very if fill/stop, the output high level is to resistance R 10; Make triode Q1 conducting, adjustable resistance VR1 work reduces the resistance of the output voltage adjustable side 122 of pulse width modulating chip 12 in the charger 1, control charger 1 output charging voltage; Resetting voltage detects sign, and the output high level is opened the output of frequency conversion charger to switching device 2; Make the frequency conversion charger to the access battery charge, the set indicator light detects sign, and whether judgement time 3 arrives; If the time 3 is less than, directly interrupt returning, continue to carry out main program; If the time 3 arrives, reset and fill/stop sign, interrupt returning, continue to carry out main program; Be masked as vacation if fill/stop, homing light detects sign, and output low level is to switching device 2; Close the output of frequency conversion charger, suspend the frequency conversion charger to the access battery charge, set voltage detecting sign; Whether judgement time 2 arrives; If the time 2 is less than, directly interrupt returning, continue to carry out main program; If the time 2 arrives, sign is filled/stops in set, interrupts returning, and continues to carry out main program.
If the frequency conversion charger is in the flat charged state of filling, judge to fill/stop to indicate true and falsely that be masked as very if fill/stop, the output high level is to resistance R 10; Make triode Q1 conducting, adjustable resistance VR1 work reduces the resistance of the output voltage adjustable side 122 of pulse width modulating chip 12 in the charger 1, control charger 1 output charging voltage; Resetting voltage detects sign, and the output high level is opened the output of frequency conversion charger to switching device 2; Make the frequency conversion charger to the access battery charge, the set indicator light detects sign, and whether judgement time 4 arrives; If the time 4 is less than, directly interrupt returning, continue to carry out main program; If the time 4 arrives, reset and fill/stop sign, interrupt returning, continue to carry out main program; Be masked as vacation if fill/stop, homing light detects sign, and output low level is to switching device 2; Close the output of frequency conversion charger, suspend the frequency conversion charger to the access battery charge, set voltage detecting sign; Whether judgement time 2 arrives; If the time 2 is less than, directly interrupt returning, continue to carry out main program; If the time 2 arrives, sign is filled/stops in set, interrupts returning, and continues to carry out main program.
If the frequency conversion charger is in the slow charged state of filling, judge to fill/stop to indicate true and falsely that be masked as very if fill/stop, the output high level is to resistance R 10; Make triode Q1 conducting, adjustable resistance VR1 work reduces the resistance of the output voltage adjustable side 122 of pulse width modulating chip 12 in the charger 1, control charger 1 output charging voltage; Resetting voltage detects sign, and the output high level is opened the output of frequency conversion charger to switching device 2; Make the frequency conversion charger to the access battery charge, the set indicator light detects sign, and whether judgement time 5 arrives; If the time 5 is less than, directly interrupt returning, continue to carry out main program; If the time 5 arrives, reset and fill/stop sign, interrupt returning, continue to carry out main program; Be masked as vacation if fill/stop, homing light detects sign, and output low level is to switching device 2; Close the output of frequency conversion charger, suspend the frequency conversion charger to the access battery charge, set voltage detecting sign; Whether judgement time 2 arrives; If the time 2 is less than, directly interrupt returning, continue to carry out main program; If the time 2 arrives, sign is filled/stops in set, interrupts returning, and continues to carry out main program.
If the frequency conversion charger is in floating charge state, judge to fill/stop to indicate true and falsely that be masked as very if fill/stop, output low level is to resistance R 10; Triode Q1 is ended, and adjustable resistance VR1 does not work, and the resistance of the middle output voltage adjustable side 122 of pulse width modulating chip 12 does not have influence in the charger 1; Control charger 1 output float charge voltage (if insert lithium battery, is then still exported high level this moment to resistance R 10, is made charger 1 still export charging voltage; Be that lithium battery does not have float charge voltage), resetting voltage detects sign, if the time 7 is less than; The output high level is opened the output of frequency conversion charger to switching device 2, makes the frequency conversion charger to the access battery charge; If the time 7 arrives, output low level is closed the output of frequency conversion charger to switching device 2, stops the frequency conversion charger to the access battery charge, and the set indicator light detects sign, and whether judgement time 1 arrives, if the time 1 is less than, directly interrupts returning, and continues to carry out main program; If the time 1 arrives, reset and fill/stop sign, interrupt returning, continue to carry out main program; Be masked as vacation if fill/stop, homing light detects sign, and output low level is to switching device 2; Close the output of frequency conversion charger, suspend the frequency conversion charger to the access battery charge, set voltage detecting sign; Whether judgement time 6 arrives; If the time 6 is less than, directly interrupt returning, continue to carry out main program; If the time 6 arrives, sign is filled/stops in set, interrupts returning, and continues to carry out main program.
If the frequency conversion charger is in Light Condition, judge to fill/stop to indicate true and falsely that be masked as very if fill/stop, output low level is to resistance R 10; Triode Q1 is ended, and adjustable resistance VR1 does not work, and the resistance of the output voltage adjustable side 122 of pulse width modulating chip 12 does not have influence in the charger 1; Control charger 1 output float charge voltage (if insert lithium battery, is then still exported high level this moment to resistance R 10, is made charger 1 still export charging voltage; Be that lithium battery does not have float charge voltage), resetting voltage detects sign, opens the output of frequency conversion charger; Make the frequency conversion charger to the access battery charge, the set indicator light detects sign, and whether judgement time 1 arrives; If the time 1 is less than, directly interrupt returning, continue to carry out main program; If the time 1 arrives, reset and fill/stop sign, interrupt returning, continue to carry out main program; Be masked as vacation if fill/stop, homing light detects sign, and output low level is to switching device 2; Close the output of frequency conversion charger, suspend the frequency conversion charger to the access battery charge, set voltage detecting sign; Whether judgement time 2 arrives; If the time 2 is less than, directly interrupt returning, continue to carry out main program; If the time 2 arrives, sign is filled/stops in set, interrupts returning, and continues to carry out main program.
The frequency conversion charger of the frequency conversion square wave batch (-type) intelligent charge of invention; Can dynamically adjust charging current, charging voltage according to plumbic acid in the charging process or lithium battery state-of-charge, and set the electric current square wave of different frequency; And can give the pause intermittence of different time; And can carry out judgment processing to the multiple situation in the charging process, kinds of protect is provided, and has the following advantages:
1, intelligence, reliable misoperation can not occur;
2, charge capacity foot.The frequency conversion charger of invention carries out large current charge at the battery low-voltage state, can before the battery gassing, charge into more electric weight, after therefore each charging, and the discharge of Duoing in the time of being full of than normal charge device 10-15 minute.
3, charging is fast.The frequency conversion charger of invention adopts the big electric current batch (-type) of frequency conversion square wave intelligent charge, makes the ion of participating in reaction have enough time to generate or be diffused into electrode surface, has increased limiting diffusion current density, has reduced concentration polarization, has therefore shortened the charging interval widely.
4, the life-span is long.The frequency conversion charger of invention with the charging of upper frequency pulse square wave, has been eliminated the plumbous crystallization of partial vulcanization by microprocessor controls when each charging begins; Gush with the big electric current of lower frequency subsequently and fill; When battery is charged to gassing voltage, uses the high frequency trickle charge again instead to the constant voltage of charging, and reduce to face in charging current and use the floating charge of gassing voltage trickle when being full of little electric current instead; Turn-off output after being full of certain hour, stop charging.Polarization crystallization, water loss, the overheated generation of filling phenomenons such as drum of rechargeable battery thoroughly avoided in this series technique measure, and therefore, the frequency conversion charger of invention can extending battery life 50%.
5, multiple functional.Have start, the prompting that resounds, patrol and examine automatic adjustment automatically, open circuit voltage output, short circuit, reversal connection, overvoltage, overcurrent, functions such as full guard such as overheated, extensibility is strong.
Therefore; The foregoing description is a preferred implementation of the present invention; But not merely be restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify, and all should be the substitute mode of equivalence, all is included within the protection range of the present invention.
Claims (11)
1. frequency conversion charger is characterized in that comprising:
Charger (1) to battery charge;
The switching device (2) of opening and closing charger (1);
Gather the main output voltage acquisition module (3) of the output voltage of charger (1);
The charged state of gathering charger (1) is so that judge the charging signals acquisition module (4) whether battery is full of;
The voltage control module (6) of the charging voltage size of control charger (1);
Charger (1) is carried out the microcontroller (7) of Based Intelligent Control;
The power module of voltage regulation (5) of operating voltage is provided for microcontroller (7); And
The current control module (8) of the charging current size of control charger (1).
2. frequency conversion charger according to claim 1; It is characterized in that: said charger (1) is by pulse width modulating chip (12) control, and has the main voltage output end (14) that is used for charging the battery through switching device down in microcontroller (7) control, output voltage between+7 volts to+30 volts and be used to the boost voltage output (16) that microcontroller (7) supplies power and have the charged state output (18) that charged state is indicated; Said pulse width modulating chip (12) has output current adjustable side (124) and output voltage adjustable side (122).
3. frequency conversion charger according to claim 2 is characterized in that: said microcontroller (7) has first input/output terminal (72), second input/output terminal (71), the 3rd input/output terminal (73), the 4th input/output terminal (75), the first analog-to-digital conversion end (74), the second analog-to-digital conversion end (76) and power input (78).
4. frequency conversion charger according to claim 3 is characterized in that: said switching device (2) has input (22), output (24) and control end (26); Said input (22) is connected with the main voltage output end (14) of charger (1), and output (24) is as the voltage output end of frequency conversion charger; Said control end (26) is connected with first input/output terminal (72) of microcontroller (7).
5. frequency conversion charger according to claim 4 is characterized in that: said main output voltage acquisition module (3) comprises resistance (R1), resistance (R2), resistance (R3) and electric capacity (C5); The output (24) of one termination switching device (2) of said resistance (R1); The other end is through resistance (R2) ground connection; The non-earth terminal of resistance (R2) is connected with the first analog-to-digital conversion end (74) of microcontroller (7) through resistance (R3), and the said first analog-to-digital conversion end (74) is through electric capacity (C5) ground connection simultaneously.
6. frequency conversion charger according to claim 5 is characterized in that: said charging signals acquisition module (4) comprises resistance (R4), resistance (R5), resistance (R6) and electric capacity (C7); The charged state output (18) of one termination charger (1) of said resistance (R4), the other end is through resistance (R5) ground connection; The non-earth terminal of resistance (R5) is connected to the second analog-to-digital conversion end (76) of microcontroller (7) through resistance (R6), and the second analog-to-digital conversion end (76) is through electric capacity (C7) ground connection.
7. frequency conversion charger according to claim 6 is characterized in that: said power module of voltage regulation (5) comprises voltage stabilizing chip (52), electric capacity (C1), electric capacity (C2) and the electric capacity (C3) of have input (522), output (524) and earth terminal (526); The input (522) of said voltage stabilizing chip (52) connects the boost voltage output (16) of charger (1); And through electric capacity (C1) ground connection; Output (524) is connected with the power input (78) of microcontroller (7); And through the back ground connection of electric capacity (C2) and (C3) parallel connection, said earth terminal (526) is ground connection then.
8. frequency conversion charger according to claim 7 is characterized in that: said voltage control module (6) comprises triode (Q1), variable resistor (VR1), resistance (R9) and resistance R (10); The base stage of said triode (Q1) is connected to second input/output terminal (71) of microcontroller (7) through resistance R (10); The grounded emitter of said triode (Q1); The collector electrode of said triode (Q1) is connected to an end of variable resistor (VR1); Variable resistor (VR1) other end is connected to the output voltage adjustable side (122) of the pulse width modulating chip (12) of charger (1), and resistance (R9) is connected in parallel between triode (Q1) base stage and the emitter.
9. frequency conversion charger according to claim 8 is characterized in that: said current control module (8) comprises triode (Q2), variable resistor (VR2), resistance R (11) and resistance R (12); The base stage of said triode (Q2) is connected to the 3rd input/output terminal (73) of microcontroller (7) through resistance R (12); The grounded emitter of triode (Q2); And the collector electrode of triode (Q2) is connected to an end of variable resistor (VR2), and variable resistor V (R2) other end is connected to the output current adjustable side (124) of the pulse width modulating chip (12) of charger (1); Resistance R (11) is connected in parallel between the base stage and emitter of triode (Q2).
10. frequency conversion charger according to claim 9 is characterized in that: said frequency conversion charger further comprises and is used for powering on and the auditory tone cues module (9) that battery has been full of to the start of user prompt frequency conversion charger through alternative sounds.
11. frequency conversion charger according to claim 10 is characterized in that: said auditory tone cues module (9) comprises triode (Q3), resistance R (13), resistance (R14) and buzzer (Q4); Said triode (Q3) base stage is connected to the 4th input/output terminal (75) of microcontroller (7) through resistance R (13); The grounded emitter of triode (Q3); Collector electrode is connected to an end of buzzer (Q4), and the other end of buzzer (Q4) is connected with the power input (78) of microcontroller (7); Resistance (R14) is connected in parallel between triode (Q3) base stage and the emitter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295561.XA CN102832664B (en) | 2012-08-17 | 2012-08-17 | Frequency conversion square-wave intermittent formula intelligent charger |
| PCT/CN2013/077822 WO2014029235A1 (en) | 2012-08-17 | 2013-06-25 | Charger having variable frequency square wave intermittent charging technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295561.XA CN102832664B (en) | 2012-08-17 | 2012-08-17 | Frequency conversion square-wave intermittent formula intelligent charger |
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| Publication Number | Publication Date |
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| CN102832664A true CN102832664A (en) | 2012-12-19 |
| CN102832664B CN102832664B (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210295561.XA Active CN102832664B (en) | 2012-08-17 | 2012-08-17 | Frequency conversion square-wave intermittent formula intelligent charger |
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| Country | Link |
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| CN (1) | CN102832664B (en) |
| WO (1) | WO2014029235A1 (en) |
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| WO2014029235A1 (en) * | 2012-08-17 | 2014-02-27 | 广州市君盘实业有限公司 | Charger having variable frequency square wave intermittent charging technology |
| CN104009503A (en) * | 2013-02-25 | 2014-08-27 | 立锜科技股份有限公司 | Charging circuit and control circuit and control method |
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| CN111682602A (en) * | 2020-05-15 | 2020-09-18 | 上海市基础工程集团有限公司 | Charging control device and method for storage battery car in tunnel |
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| WO2014029235A1 (en) * | 2012-08-17 | 2014-02-27 | 广州市君盘实业有限公司 | Charger having variable frequency square wave intermittent charging technology |
| CN104009503A (en) * | 2013-02-25 | 2014-08-27 | 立锜科技股份有限公司 | Charging circuit and control circuit and control method |
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| CN111682602A (en) * | 2020-05-15 | 2020-09-18 | 上海市基础工程集团有限公司 | Charging control device and method for storage battery car in tunnel |
| CN111682602B (en) * | 2020-05-15 | 2024-01-30 | 上海市基础工程集团有限公司 | Charging control device and control method for storage battery car in tunnel |
| CN114039396A (en) * | 2021-11-30 | 2022-02-11 | 江西意孚欧科技有限公司 | Electronic communication equipment charging protection device with protection battery |
| CN114039396B (en) * | 2021-11-30 | 2022-12-13 | 国网甘肃省电力公司金昌供电公司 | Electronic communication equipment charging protection device capable of protecting battery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014029235A1 (en) | 2014-02-27 |
| CN102832664B (en) | 2015-10-14 |
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