CN102097837B - A kind of charge protector of waste heat of range generating - Google Patents
A kind of charge protector of waste heat of range generating Download PDFInfo
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- CN102097837B CN102097837B CN201010605424.2A CN201010605424A CN102097837B CN 102097837 B CN102097837 B CN 102097837B CN 201010605424 A CN201010605424 A CN 201010605424A CN 102097837 B CN102097837 B CN 102097837B
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Abstract
The invention discloses the charge protector of a kind of waste heat of range generating, it is characterized in that, it comprises a charging control circuit formed primarily of several triodes and resistance; One current potential comparison circuit, primarily of potential comparator and several resistance composition, judges to go forward side by side and control charging circuit in the prepotential of working as of storage battery; And DC/DC variable-voltage power supply, comprising the electric capacity of power transformer and upper connection thereof, diode, is a stable DC voltage by the low level power supply transformation of input, as the input power of other parts of circuit and the input power of charging circuit.The present invention can only power-generating chip to charge in batteries, energy storage device does not discharge to power-generating chip, only have when the bottom boundary potential of storage battery current potential lower than a certain limiting potential a little more than the foreign work of storage battery energy, circuit just starts the charging to storage battery, can prolonging service life of battery, effectively prevent battery damage from even exploding.
Description
Technical field
The present invention relates to gas furnace technical field, relate to the charge protector of a kind of waste heat of range generating more specifically.
Background technology
At present, energy-saving and emission-reduction rise to national strategy.Low-phase energy is utilized to generate electricity to meet the important directions that the electricity needs of part utensil is energy-saving and emission-reduction.The technology wherein utilizing waste heat of range to generate electricity also has attracted many people to study.On the other hand; because the utilization of electric energy in current household cooker is only used for igniting and safeguard protection; power consumption is few, and the cogeneration technology of use cost costliness replaces dry cell uneconomical economically, and therefore general Study person seldom can deeply think deeply concrete application technology.In the waste heat of range research on utilization that we carry out, we can realize required electricity generate function by utilizing thermo-electric generation chip and can charge to storage battery.Problems existing is, on the one hand, automatically cannot stop charging, battery damage can be caused even to explode after storage battery is full; On the other hand, when after kitchen range cooling, the electricity backflow of storage battery, automatic discharging; In addition, when each kitchen range use, power-generating chip can produce electric energy, and to charge in batteries, can cause the lost of life of storage battery.Therefore, we need a special charge protector, can realize following function:
1, electric current can only one-way flow, namely can only power-generating chip to charge in batteries, energy storage device does not discharge to power-generating chip;
2, when the current potential of storage battery reaches full current potential Vmax, circuit stops charging automatically, enters guard mode;
3, only have as the bottom boundary potential Vmin of storage battery current potential lower than a certain limiting potential a little more than the foreign work of storage battery energy, circuit just starts the charging to storage battery.
Summary of the invention
A kind of structure that object of the present invention is exactly deficiency in order to solve prior art and provides is simple, environmental protection and energy saving, life-span are long, and the charge protector that the waste heat of range of work safety generates electricity.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of charge protector of waste heat of range generating, is characterized in that, it comprises a charging control circuit formed primarily of several triodes and resistance; One current potential comparison circuit, primarily of potential comparator and several resistance composition, judges to go forward side by side and control charging circuit in the prepotential of working as of storage battery; And DC/DC variable-voltage power supply, comprising the electric capacity of power transformer and upper connection thereof, diode, is a stable DC voltage by the low level power supply transformation of input, as the input power of other parts of circuit and the input power of charging circuit.
Further illustrating as such scheme, described current potential comparison circuit is made up of 1 potential comparator U1 and 4 resistance R1 ~ R4, resistance R3, R4 form the reference arm of current potential comparison circuit, resistance R1, R2 form cell potential input arm, Vcc is from the Vout of power supply transforming circuit, and Vbatt is from storage battery.
Described potential comparator U1 adopts two-way differential comparator LM393P, and its operating voltage is low to moderate 2V.
Described charging control section is divided and is made up of 3 triode Q1 ~ Q3 and 5 resistance R5 ~ R9, the base stage of triode Q2 passes through the emitter of resistance R6 connecting triode Q1, the base stage of triode Q3 passes through the emitter of resistance R8 connecting triode Q2, and the collector electrode of triode Q3 connects storage battery by resistance R9.
Described DC/DC variable-voltage power supply is made up of power transformer U2 and 1 diode D1,1 electric capacity C1, power transformer U2 adopts RN5RK331A, power-generating chip is charged to electric capacity C1 by diode D1, raise the CE pin current potential of power transformer U2, U2 is started, Lx end has a current potential, the Vout output voltage of U2, as the driving voltage of triode in the driving voltage of potential comparator and charging circuit.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
1, the present invention adopts the DC/DC variable-voltage power supply that the electric capacity of power transformer and upper connection thereof, diode are formed, and electric current can only one-way flow, namely can only power-generating chip to charge in batteries, energy storage device does not discharge to power-generating chip;
2, the present invention realizes battery by current potential comparison circuit and just can charge lower than certain critical potential, and when the current potential of storage battery reaches full current potential Vmax, circuit stops charging automatically, enters guard mode; Only have as the bottom boundary potential Vmin of storage battery current potential lower than a certain limiting potential a little more than the foreign work of storage battery energy, circuit just starts the charging to storage battery.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Description of reference numerals: 1, charging control circuit 2, current potential comparison circuit 3, DC/DC variable-voltage power supply
Embodiment
As shown in Figure 1, a kind of charge protector of waste heat of range generating, it comprises a charging control circuit 1 formed primarily of several triodes and resistance; One current potential comparison circuit 2, primarily of potential comparator and several resistance composition, judges to go forward side by side and control charging circuit in the prepotential of working as of storage battery; And DC/DC variable-voltage power supply 3, comprising the electric capacity of power transformer and upper connection thereof, diode, is a stable DC voltage by the low level power supply transformation of input, as the input power of other parts of circuit and the input power of charging circuit.In the present embodiment, current potential rating unit is made up of 1 potential comparator U1 and 4 resistance R1 ~ R4.Wherein R3, R4 form the reference arm of current potential comparison circuit, and Vcc is from the Vout of power transforming section.R1, R2 form cell potential input arm.When charging is carried out, 7 pin of U1 are low levels, and as Vbatt > Vmax, the 5 pin current potentials of U1 are higher than 6 pin, and 7 pin of U1 export a high level, maintain 5 pin current potentials higher than 6 pin, and charging control section divides stopping to charge to Vbatt.Along with storage battery electricity consumption, Vbatt declines, until the 5 pin level of Vbatt < Vmin, U1 are lower than 6 pin level, 7 pin of U1 export a low level, and maintain 5 pin level lower than 6 pin, charging control circuit charges to battery.Charging control section is divided and is made up of 3 triode Q1 ~ Q3 and 5 resistance R5 ~ R9.When 7 pin of U1 export 1 high level, Q1 conducting, the base stage low level of Q2, Q2 opens a way, the base stage high level of Q3, and Q3 opens a way, and R9 does not have electric current to pass through, and Vbatt does not charge.When the 7 pin low level of U1, Q1 opens a way, Q2 base stage high level, Q2 path, the base stage low level of Q3, Q3 path, and R9 has electric current to pass through, and Vbatt charges.Power transforming section main body is a DC/DC power supply changeover device, after power-generating chip produces electromotive force, charges to electric capacity C1 through diode D1, and the CE pole level of power transformer U2 raises, and U2 is started.After 5 pin of U2 input a level, 2 pin export a constant voltage vcc, as the power supply of other parts of circuit, and as the power supply charged.When after power-generating chip cooling, power-generating chip current potential disappears, and under the effect of diode, battery can not back discharge.By changing the value of R3, R4, the reference level at the 6 pin places of U1 can be adjusted.By adjusting the value of R1 and R2, different Vmax and Vmin can be realized.
As a case study on implementation of technique scheme, potential comparator U1 adopts two-way differential comparator LM393P, and its operating voltage can be low to moderate 2V, can realize above-mentioned 6, the multilevel iudge of 7 pin.DC/DC transforming circuit U2 adopts RN5RK331A, when power-generating chip is charged to electric capacity C1 by diode, raise the CE pin current potential of U2, U2 is started, at this moment because Lx end has a current potential, the Vout of U2 exports the voltage of one 3.3, as the driving voltage of three triodes in the driving voltage of U1 and charging circuit.This circuit can be the Ni-H cell charging of 1.2V to a rated voltage, realizes only having when cell voltage just starts charging lower than during 1.0V, stops charging when cell voltage reaches 1.3V.The starting resistor of charge protector input is about 1.0V, and now the output current of U2 can reach 30mA.U2 also can adopt RN5R501A to replace, and after adjusting each corresponding resistor, at this moment charge protector can give the batteries charging of about 3V.
The electric energy that waste heat of range generating produces has following features: 1, energy is low; 2, energy attachment (heating) time constantly raises, and adapt to such energy characteristics and adopt the voltage transformation module of this programme and its peripheral drive circuit to be more rational.In addition, the more general charging circuit of this programme has 2 distinguishing features: 1, voltage transforming portion; 2, realize battery by current potential comparison circuit just can charge in critical potential lower than certain.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (1)
1. a charge protector for waste heat of range generating, is characterized in that, it comprises a charging control circuit formed primarily of several triodes and resistance; One current potential comparison circuit, primarily of potential comparator and several resistance composition, judges to go forward side by side and control charging circuit in the prepotential of working as of storage battery; And DC/DC variable-voltage power supply, comprising the electric capacity of power transformer and upper connection thereof, diode, is a stable DC voltage by the low level power supply transformation of input, as the input power of other parts of circuit and the input power of charging circuit;
Current potential rating unit is made up of 1 potential comparator U1 and 4 resistance R1 ~ R4, R3, R4 form the reference arm of current potential comparison circuit, Vcc is from the Vout of power transforming section, and R1, R2 form cell potential input arm, when charging is carried out, 7 pin of U1 are low levels, as Vbatt>Vmax, the 5 pin current potentials of U1 are higher than 6 pin, and 7 pin of U1 export a high level, maintain 5 pin current potentials higher than 6 pin, charging control section divides stopping to charge to Vbatt, along with storage battery electricity consumption, Vbatt declines, until Vbatt<Vmin, the 5 pin level of U1 are lower than 6 pin level, and 7 pin of U1 export a low level, maintain 5 pin level lower than 6 pin, charging control circuit charges to battery, and charging control section is divided and is made up of, when 7 pin of U1 export 1 high level 3 triode Q1 ~ Q3 and 5 resistance R5 ~ R9, Q1 conducting, the base stage low level of Q2, Q2 opens a way, the base stage high level of Q3, Q3 opens a way, and R9 does not have electric current to pass through, and Vbatt does not charge, when the 7 pin low level of U1, Q1 opens a way, Q2 base stage high level, Q2 path, the base stage low level of Q3, Q3 path, and R9 has electric current to pass through, and Vbatt charges, power transforming section main body is a DC/DC power supply changeover device, after power-generating chip produces electromotive force, through diode D1, electric capacity C1 is charged, the CE pole level of power transformer U2 raises, U2 is started, after 5 pin of U2 input a level, 2 pin export a constant voltage vcc, as the power supply of other parts of circuit, and as the power supply charged, when after power-generating chip cooling, power-generating chip current potential disappears, under the effect of diode, battery can not back discharge, by changing R3, the value of R4, the reference level at the 6 pin places of U1 can be adjusted, by adjusting the value of R1 and R2, different Vmax and Vmin can be realized,
Described potential comparator U1 adopts two-way differential comparator LM393P, its operating voltage is low to moderate 2V, the multilevel iudge of 6 described in realization, 7 pin, DC/DC transforming circuit U2 adopts RN5RK331A, when power-generating chip is charged to electric capacity C1 by diode, raises the CE pin current potential of U2, U2 is started, at this moment because Lx end has a current potential, the Vout of U2 exports the voltage of one 3.3, as the driving voltage of three triodes in the driving voltage of U1 and charging circuit; This circuit is the Ni-H cell charging of 1.2V to a rated voltage; realization only has when cell voltage just starts charging lower than during 1.0V; stop charging when cell voltage reaches 1.3V, the starting resistor 1.0V of charge protector input, now the output current of U2 can reach 30mA.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010605424.2A CN102097837B (en) | 2010-12-24 | 2010-12-24 | A kind of charge protector of waste heat of range generating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010605424.2A CN102097837B (en) | 2010-12-24 | 2010-12-24 | A kind of charge protector of waste heat of range generating |
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| CN102097837A CN102097837A (en) | 2011-06-15 |
| CN102097837B true CN102097837B (en) | 2016-01-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2759033Y (en) * | 2004-12-29 | 2006-02-15 | 方幸福 | Two-mode type solar charger |
| CN1787717A (en) * | 2005-11-18 | 2006-06-14 | 清华大学 | Solar energy high voltage sodium lamp controller based on single stage inverter |
| CN2812376Y (en) * | 2005-07-29 | 2006-08-30 | 揭雪强 | A full-automatic pulse charging machine for high-voltage heavy-current accumulator battery |
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2010
- 2010-12-24 CN CN201010605424.2A patent/CN102097837B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2759033Y (en) * | 2004-12-29 | 2006-02-15 | 方幸福 | Two-mode type solar charger |
| CN2812376Y (en) * | 2005-07-29 | 2006-08-30 | 揭雪强 | A full-automatic pulse charging machine for high-voltage heavy-current accumulator battery |
| CN1787717A (en) * | 2005-11-18 | 2006-06-14 | 清华大学 | Solar energy high voltage sodium lamp controller based on single stage inverter |
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| CN102097837A (en) | 2011-06-15 |
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