CN105071466A - Temperature-controlled charger capable of prolonging service life of storage battery - Google Patents
Temperature-controlled charger capable of prolonging service life of storage battery Download PDFInfo
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- CN105071466A CN105071466A CN201510471746.5A CN201510471746A CN105071466A CN 105071466 A CN105071466 A CN 105071466A CN 201510471746 A CN201510471746 A CN 201510471746A CN 105071466 A CN105071466 A CN 105071466A
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Abstract
The invention discloses a temperature-controlled charger capable of prolonging service life of a storage battery. The temperature-controlled charger is characterized in that a voltage transformation circuit comprises a charging output voltage adjusting circuit and an old and new batteries charging change-over switch, wherein a temperature sensor measurement and control circuit comprises an environment temperature sensing circuit and a temperature-controlled charger restarting circuit; the environment temperature sensing circuit has three levels of temperature differences; the temperature-controlled charger restarting circuit controls restarting and closing of a high-voltage switch circuit according to the temperature of a storage battery housing; and the voltage transformation circuit provides different charging output voltage according to the environment temperature measured by the temperature sensor measurement and control circuit and the temperature of the storage battery housing. According to the temperature-controlled charger, the problem of charging expansion of the storage battery caused by hot weather is solved; the service life of an old storage battery is prolonged; the capacity of the storage battery is restored; and the problem of a charging failure caused by low air temperature in winter is avoided.
Description
Technical field
The present invention relates to a kind of battery charging plant, the temperature referring in particular to a kind of energy prolonging service life of battery controls charging device.
Background technology
Battery thermal (dehydration) out of control from 1859 in the world first lead acid accumulator to be born over more than 150 year still unsolved a great problem so far.Storage battery is because thermal runaway (dehydration) is scrapped in advance and accounted for storage battery more than 80 percent, and particularly annual 7 ~ September is even more serious.Because battery cell case is a kind of plastic products, will deform phenomenon after being subject to high temperature.Therefore, storage battery distortion great majority are due to the caused distortion of charging process (thermal runaway).Charge in batteries capacity arrives percent charging zone entering high pressure after 80s, and at this moment, first precipitated oxygen on positive pole, oxygen, by the hole in dividing plate, arrives negative pole.Carry out oxygen reaction at negative plate and produce heat, when charging capacity reaches percent 9O, oxygen generation speed increases, negative pole starts to produce hydrogen, the increase of a large amount of gas makes accumulator internal pressure exceed valve pressure, and safety valve is opened, and gas is overflowed, along with the increase of number of times opened by safety valve, the moisture in battery is reduced gradually and finally causes storage battery dehydration.Because in battery, thermal capacity is maximum is water, after moisture reduces, battery temperature is raised very fast, simultaneously because dehydration makes the superfine glass fibre partition board in battery shrink phenomenon, cause and be deteriorated with the adhesive force of positive and negative plate, the phenomenons such as internal resistance increases, and temperature rising is fast, and finally make battery occur (thermal runaway).When temperature reaches more than 80 degree, battery has been deformed, thus a large amount of storage battery is scrapped, contaminated environment, wastes energy, and brings unnecessary financial burden to consumer.
And existing charger causes storage battery vulcanization, main cause is the defect of charger design, and stop charging when charging voltage value reaches setting voltage value, be mostly that a Battery pack only has one or two to be difference battery sometimes, all the other are all normal battery.High by difference battery cell voltage after sulfuration, so just cause battery can not full charge tankage.New battery due to the reason of charger often can not sufficient battery capacity, cause battery capacity not enough for a long time and charging increases for several times, just create single battery capacity lagging, overlap storage battery processed and scrap in advance.Particularly winter temperature is low, and add that the electrolyte viscosity of battery increases, existing charger at all cannot full charge tankage, and most of storage battery is that present common charger undercharge reduces battery capacity.
Summary of the invention
The object of the present invention is to provide one effectively can prevent the out of control and sulfuration of battery thermal, carry out control temperature to charge in batteries by the parameter of temperature two kinds of temperature of ambient temperature and battery cell case, and can the temperature control charger of prolonging service life of battery.
The technical solution used in the present invention is: a kind of temperature control charger of energy prolonging service life of battery, it is characterized in that: include current rectifying and wave filtering circuit, high voltage switch circuit, voltage conversion circuit, constant-current voltage-stabilizing charging control circuit, temperature sensor telemetry circuit, storage battery, described voltage conversion circuit includes charging output voltage regulation circuit, new used batteries battery charging switch, described temperature sensor telemetry circuit includes ambient temperature sensor circuit, temperature controlled charger restarts circuit, and ambient temperature sensor circuit has 3 grades of temperature differences; Temperature controlled charger is restarted circuit and is controlled restarting and closing of high voltage switch circuit according to the temperature of battery cell case, and the temperature of the ambient temperature that voltage conversion circuit records according to temperature sensor telemetry circuit and battery cell case provides different charging output voltages.
The voltage transformation switch of described charging output voltage regulation circuit is four way switch.
One is had to prevent both positive and negative polarity reverse-connection protection circuit in described constant-current voltage-stabilizing charging control circuit.
Described temperature sensor telemetry circuit has 4 thermistors, and wherein 2 thermistors are contained on battery cell case, and 2 thermistors are contained in air inlet, are provided with protection box outside thermistor.
The present invention's output voltage regulation circuit that charges has multiple charging output voltage (48V, 60V, 64V, 72V, 80V), and can adapt to the electric motor car voltage voltage of multiple different model, be universal charger.During charging, user can select according to the electric motor car of oneself, and dialling with hand can Long-Time Service once.Charging voltage is improved a gear by winter, can solve the low problem of can not filling electricity of winter temperature.
Temperature sensor telemetry circuit of the present invention have employed combining of transducer and telemetry circuit; charge in batteries is controlled by the temperature of ambient temperature and battery cell case; the temperature probe of transducer telemetry circuit adopts thermistor; reason is that thermistor has negative temperature coefficient; when the temperature increases; resistance value reduces significantly, larger, highly sensitive than the temperature coefficient of simple metal; Because volume is little, thus thermal inertia is little, is applicable to Quick Measurement; Exactly battery cell case temperature can be sent in charger and process.
The present invention can select charging modes according to new, old the deciding of storage battery, when old charge in batteries, because old battery liquid is sufficient not, during charging, temperature easily rises, temperature has arrived design temperature will stop charging, treat that temperature drops to certain set point, temperature controlled charger restarts circuit will automatic charging.The present invention can solve old service lifetime of accumulator by using old battery switch and temperature controlled charger to restart circuit, and extend old service lifetime of accumulator, can effectively make new accumulator with more than 3 years, old storage battery extends the useful life of more than 1 year.
The present invention is at winter temperature during low and old charge in batteries, by carrying high-voltage charge, very strong function is penetrated because high voltage has, storage battery vulcanization can be removed, the capacity that storage battery reduces because of sulfuration can be recovered, inert substance can be excited to be converted into active material, to participate in chemical reaction, charging can not be stopped because a certain voltage in series battery is high.The present invention generates setting voltage by making low-voltage, high voltage changes equalizing voltage into, therefore high voltage can be converted into equalizing voltage, low-voltage battery raises, thus reach the optimum efficiency of charge in batteries, effectively can to solve in series battery a certain voltage high and stop charging and winter temperature is low can fill electric problem, and can battery capacity value be recovered.
The present invention devises the anti-reverse function of positive-negative polarity, although electric motor car spreads to widely known, sometimes for some reason, positive and negative polarity is changed unintentionally, if charger inserts in power supply and burns out with regard to short circuit, the present invention can prevent the appearance of this situation.
The present invention, by ambient temperature inductor environmentally variations in temperature and convert charging gear, changes charge parameter, charge by temperature controlled for battery cell case charger by temperature inductor, prevents storage battery to charge because being warm the problem of expansion.New and old storage battery gear and restart function combine extend old storage battery and repair service lifetime of accumulator.Multiple charging gear ensure that the present invention can fill all electromobile batteries.Can charging voltage be regulated simultaneously, the low problem of can not filling electricity of temperature in winter can be prevented.
The present invention effectively can control the problem that battery thermal dilatancy out of control and storage battery are scrapped in advance because of consumption, and can extend old service lifetime of accumulator 1 year to about 2 years.Also solve northern temperature low (subzero tens degree) and the normal capacity sufficient of storage battery can be made.Introducing 2015 and will produce new electric motor car 2,700 ten thousand (on average each 5 calculating) and need storage battery 1 according to national battery industry association, 3500000000, every sale price 140 yuan amounts to RMB 18,900,000,000 yuan, if all use the present invention, as long as extend one-year age just save 18,900,000,000 yuan.Also have the electric motor car that society is using, three-wheel, electric automobile, tour bus etc., equally also can use the present invention.
Accompanying drawing explanation
Fig. 1 is principle assumption diagram of the present invention;
Fig. 2 is circuit diagram of the present invention.
Embodiment
As can be seen from Figure 1: the temperature control charger of a kind of energy of the present invention prolonging service life of battery, it is characterized in that: include current rectifying and wave filtering circuit, high voltage switch circuit, voltage conversion circuit, constant-current voltage-stabilizing charging control circuit, temperature sensor telemetry circuit, storage battery, the temperature of the ambient temperature that voltage conversion circuit records according to temperature sensor telemetry circuit and battery cell case, provide different charging output voltages by constant-current voltage-stabilizing charging control circuit, realize charge in batteries.
As can be seen from Figure 2: each circuit of the present invention is described in detail as follows:
One, current rectifying and wave filtering circuit is made up of diode Dl ~ D4 and electric capacity C2.
Two, high voltage switch circuit is made up of transformer B, switch triode Q1, switching power source control circuit ICI, diode D5, D6, resistance R1 ~ R11, capacitor C1 ~ C10, C17.
Three, voltage conversion circuit is by photoelectrical coupler IC2, adjustable voltage stabilizer IC3, operational amplifier IC4, triode Q2, Q3, diode D7 ~ D12, resistance R12 ~ R41, voltage transformation switch S 1, locking button switch S2, resistance R60 ~ R70 form, and include charging output voltage regulation circuit, new used batteries battery charging switch.Charging output voltage regulation circuit is made up of divider resistance R12 ~ R16, voltage transformation switch S 1, resistance R60 ~ R67, wherein voltage transformation switch S 1 is four way switch, concrete output voltage is: when 4 bit switches all do not connect, charging voltage is 80V, be 72V when switch 1 is connected, switch 1, switch 2 are 64V when all connecting, switch 1, switch 2, switch 3 are 60V when all connecting, and are 48V when switch 1 ~ switch 4 is all connected.New used batteries battery charging switch is made up of resistance R24 and locking button switch S2 and R18, LED 4, when locking button switch S2 presses i.e. switch 1-2,3-4 is new battery charge initiation when connecting, indicator light is bright, when locking button switch S2 does not press down, namely switch is off state, and indicator light goes out, and is used batteries charging.
Four, constant-current voltage-stabilizing charging control circuit compares IC4, triode Q2, Q3, diode D7 ~ D12, resistance R12 ~ R41, capacitor C11 ~ C19, red LED 1, dual-colored LED 2, insurance F1 composition by photoelectricity coupling device IC circuit 2, adjustable voltage stabilizer IC3, operation amplifier.Wherein diode D10 and insurance F1 forms one and prevents both positive and negative polarity reverse-connection protection circuit, and diode D10 positive pole connects the negative pole that charging exports, and the negative pole of diode D10 is connected with charging output cathode by insurance F1.Principle is that when charging normal, electric current can not be very large, can not burn insurance; Form short circuit when when battery pole back connection, electric current directly can form loop by diode and insurance, thus fuse wire, play the effect of protection charger and battery.
Five, temperature sensor telemetry circuit is by integrated circuit (IC) 5 ~ IC10, triode Q4 ~ Q7, diode D13 ~ D19, LED 1 ~ LED3, resistance R42 ~ R59, thermistor RT1 ~ RT4, capacitor C20 ~ C28 is formed, in 4 thermistors, 2 thermistors are contained on battery cell case, 2 thermistors are contained in air inlet, protection box is provided with outside thermistor, include an ambient temperature sensor circuit, temperature controlled charger restarts circuit, wherein: ambient temperature sensor circuit is by diode D16, dropping resistor R42, R43, pressurizer IC6, IC7, capacitor C20 ~ C22 forms power pack, by resistance R44 ~ R59, capacitor C24 ~ C28, diode D13 ~ D20, LED 1 ~ LED3, triode Q4 ~ Q7, be contained in the thermistor RT3 of air inlet, RT4, integrated circuit (IC) 5, IC8 ~ IC10 forms transducer, LED1 ~ LED3 is as variations in temperature indicator light, be provided with 3 grades of temperature differences.Temperature controlled charger restarts circuit by triode, diode, operational amplifier. be contained in the thermistor RT1 on battery cell case, RT2. photoelectrical coupler composition, thermistor RT1, RT2 is battery temperature probe, and temperature sensor telemetry circuit is connected in high voltage switch circuit by 3 pin of photoelectricity coupling device, 4 pin.
When any 1 temperature of battery temperature probe arrives set point, signal passes through 2 pin or 6 pin of operational amplifier IC8,1 or 7 pin of IC8 can export a high level thereupon, pass through diode, triode 04 base stage is added to again by a resistance, triode is pulled up a horse saturation conduction, because transistor collector is directly connected with photoelectricity coupling device 2 pin, photoelectricity coupling device enters conducting state at once, and this signal is connected to 1 pin and the 5 pin realization control charging of power supply chip in high voltage switch circuit by line; Corresponding resistance can diminish and utilizes this special domestic animal to make setup control value protection battery when the temperature increases.
Operation principle of the present invention:
(1) 220V AC power carries out bridge rectifier by the diode of rectification circuit, through capacitor filtering, exports the direct voltage of 300V.
(2) 300V direct voltage sends into high voltage switch circuit, electric current is divided into two tunnels: a road enters 2 pin of pulse transformer B, through pulse transformer 1 pin to switch triode Q1 can collector electrode, another road through resistance R12 step-down by being added to switching power source chip IC1 power end 7 pin after C4 filtering, 5 pin of the common GND of IC1, 1 pin of IC1 is that the output of error comparator is through electric capacity C9, resistance R7 ground connection, 1 pin is also connected to 4 pin of photoelectrical coupler IC2 simultaneously, close again 4 pin of device IC5 to photoelectricity coupling device through resistance R14, 3 pin that photoelectricity coupling device closes device IC5 connect publicly.2nd pin of IC1 also connects publicly.4 pin of IC1 meet capacitor C6 respectively to ground, and connect 3 pin of C7 to IC1, resistance R4 receives 8 pin of IC1.The 8 pin reference voltage output ends of IC1 meet HF filtering capacitor C10 to publicly.6 pin (width-modulation pulse output) of IC1 deliver to pulse voltage through resistance R8 the base stage of switch triode Q1, amplify modulating pulse by transformer coupled in other coil groups through Q1.Through diode D6 ~ 8, C3, C13, C19 rectification, filtering, obtain 3 kinds of different supply voltages respectively, (for battery charging, for IC4, IC3, blower fan and other circuit).3 pin (current detecting end) of IC1 meet capacitor C8 respectively to publicly.Connecting resistance R5 is to publicly, and connecting resistance R6 is to the emitter of switch triode Q1.Switch triode base stage receives biasing resistor R11 to emitter; emitter is to publicly; meet a feedback resistance R10; R10 is that Q1 collector circuit detects use; when collector current is larger, the voltage that R10 produces is higher, and this voltage feeds back to IC1 by R6; 3 pin, when voltage is less than 1V, IC1 can close inside the output pulse protection switch triode of 6 pin.D5, R1, C1 play counnter attack peak value high-voltage breakdown Q1 effect.R9, C5, rise and consume absorption, and improve protection reliability, C17 provides path for eliminating transformer is elementary with secondary high pressure pulse, improves the stability between two ground.
(3) by the photoelectrical coupler IC2 in voltage conversion circuit, adjustable voltage stabilizer IC3, voltage comparator ic 4, to charging voltage, the detection of charging current, visible schematic diagram is situated between in detail: when civil power connected by charger, due to not charging, resistance R41 does not have electric current to pass through, R41 do not have voltage difference, 3 pin of IC4 do not have voltage equally, now voltage comparator 1 pin does not also export, for low level, make triode Q2, Q3 does not have base current, be in cut-off state, blower fan can not turn, charging red led LED does not work, green LED lamp obtains high level and makes to allow green light by R27, another red LED lamp (power supply indicator) is bright.When battery charging, in charge circuit, R41 has about 0, the voltage difference of 2V, at this moment 3 pin voltage ratio 2 pin of voltage comparator ic 4 are high, therefore 1 pin is high level, 1 pin be respectively after high level (1) by resistance R36 to charging indicator light power when red (red light LED) represent charge, (2) powered to Q3 base stage by R33, Q3 saturation conduction blower fan loop is connected blower fan and is transferred charger heat radiation to, (3) powered to Q2 base stage by R27, Q2 saturation conduction again by R32 to IC3, then starts high-tension circuit by IC2 photoelectrical coupler.The 6 pin level of IC4 raise, and 7 pin level decline, and feed back to IC1 and adjust pulse, keep the stability of charging current by D12 to IC2.
(4) the ambient temperature inductor circuit in temperature sensor telemetry circuit is by diode D16, and dropping resistor R42, R43, pressurizer IC6, IC7, capacitor C20, C21, C22 form power pack.By resistance R44 ~ R59, capacitor C24 ~ C28, diode D13 ~ D20, LED 1 ~ 3, triode Q4 ~ Q7, thermistor RT3, RT4, integrated circuit (IC) 5, IC8 ~ IC10 forms transducer, and LED1 ~ LED3, as variations in temperature indicator light, is provided with 3 grades of temperature differences.Ambient temperature inductor environmentally variations in temperature and convert charging gear, automatically changes charge parameter, and is pointed out by variations in temperature indicator light.Temperature probe RT1, RT2 of Battery temperature probe telemetry circuit, the 1st pin or the 7th pin of IC8 all can be passed through when temperature arrives set temperature value, send a high level signal through D14 or D15 to R46, arrive the base stage (high level effective value) of triode Q4 again, when Q4 base stage is high level, current collection is low level very, photoelectricity coupling device closes device IC5 work, directly the 1 pin voltage of the power supply chip IC1 in high voltage switch circuit is reduced, high voltage switch circuit is closed, quits work; Treat that battery temp drops to set temperature value, charger by the temperature that storage battery sets can restart again start charging, be charged to battery temp control charger setting voltage till, can restart again lower than setting voltage.
Embodiment of the present invention is only the description carried out the preferred embodiment of the present invention; not design of the present invention and scope are limited; under the prerequisite not departing from design philosophy of the present invention; the various modification that in this area, engineers and technicians make technical scheme of the present invention and improvement; protection scope of the present invention all should be fallen into; the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (4)
1. the temperature control charger of an energy prolonging service life of battery, it is characterized in that: include current rectifying and wave filtering circuit, high voltage switch circuit, voltage conversion circuit, constant-current voltage-stabilizing charging control circuit, temperature sensor telemetry circuit, storage battery, described voltage conversion circuit includes charging output voltage regulation circuit, new used batteries battery charging switch, described temperature sensor telemetry circuit includes ambient temperature sensor circuit, temperature controlled charger restarts circuit, and ambient temperature sensor circuit has 3 grades of temperature differences; Temperature controlled charger is restarted circuit and is controlled restarting and closing of high voltage switch circuit according to the temperature of battery cell case, and the temperature of the ambient temperature that voltage conversion circuit records according to temperature sensor telemetry circuit and battery cell case provides different charging output voltages.
2. the temperature control charger of energy prolonging service life of battery according to claim 1, it is characterized in that: described charging output voltage regulation circuit is made up of divider resistance R12 ~ R16, voltage transformation switch S 1, resistance R60 ~ R67, wherein voltage transformation switch S 1 is four way switch.
3. the temperature control charger of energy prolonging service life of battery according to claim 1; it is characterized in that: described constant-current voltage-stabilizing charging control circuit includes one and prevents both positive and negative polarity reverse-connection protection circuit; be made up of diode D10 and insurance F1; diode D10 positive pole connects the negative pole that charging exports, and the negative pole of diode D10 is connected with charging output cathode by insurance F1.
4. the temperature control charger of energy prolonging service life of battery according to claim 1; it is characterized in that: described temperature sensor telemetry circuit has 4 thermistors; wherein 2 thermistors are contained on battery cell case; 2 thermistors are contained in air inlet, are provided with protection box outside thermistor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510471746.5A CN105071466A (en) | 2015-08-05 | 2015-08-05 | Temperature-controlled charger capable of prolonging service life of storage battery |
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| CN201510471746.5A CN105071466A (en) | 2015-08-05 | 2015-08-05 | Temperature-controlled charger capable of prolonging service life of storage battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617173A (en) * | 2018-12-26 | 2019-04-12 | 国电南瑞科技股份有限公司 | A kind of high/low temperature rechargeable battery charging circuit applied to fault diagnosis terminal |
| TWI776238B (en) * | 2020-08-10 | 2022-09-01 | 大陸商昂寶電子（上海）有限公司 | Power modulation circuit and method, PWM controller, fast charging protocol circuit and system |
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| JPH08275401A (en) * | 1995-04-03 | 1996-10-18 | Seiko Instr Inc | Charging and discharging control circuit |
| CN1200203A (en) * | 1996-09-05 | 1998-11-25 | 菲利浦电子有限公司 | Battery charger with charging current variation based on a temperature difference between the battery and its environment |
| CN1610211A (en) * | 2004-11-18 | 2005-04-27 | 上海磁浮交通工程技术研究中心 | Vehicular accumulator cell management method based on chaos control |
| CN201113477Y (en) * | 2007-09-14 | 2008-09-10 | 东莞市翔龙能源科技有限公司 | Temperature control charging voltage adjusting device |
| CN204835619U (en) * | 2015-08-05 | 2015-12-02 | 吴中堂 | Can prolong temperature control charger that holds battery life |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08275401A (en) * | 1995-04-03 | 1996-10-18 | Seiko Instr Inc | Charging and discharging control circuit |
| CN1200203A (en) * | 1996-09-05 | 1998-11-25 | 菲利浦电子有限公司 | Battery charger with charging current variation based on a temperature difference between the battery and its environment |
| CN1610211A (en) * | 2004-11-18 | 2005-04-27 | 上海磁浮交通工程技术研究中心 | Vehicular accumulator cell management method based on chaos control |
| CN201113477Y (en) * | 2007-09-14 | 2008-09-10 | 东莞市翔龙能源科技有限公司 | Temperature control charging voltage adjusting device |
| CN204835619U (en) * | 2015-08-05 | 2015-12-02 | 吴中堂 | Can prolong temperature control charger that holds battery life |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617173A (en) * | 2018-12-26 | 2019-04-12 | 国电南瑞科技股份有限公司 | A kind of high/low temperature rechargeable battery charging circuit applied to fault diagnosis terminal |
| TWI776238B (en) * | 2020-08-10 | 2022-09-01 | 大陸商昂寶電子（上海）有限公司 | Power modulation circuit and method, PWM controller, fast charging protocol circuit and system |
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Application publication date: 20151118 |
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