CN109390991A - Control circuit and control method for gas valve battery power supply - Google Patents
Control circuit and control method for gas valve battery power supply Download PDFInfo
- Publication number
- CN109390991A CN109390991A CN201710682210.7A CN201710682210A CN109390991A CN 109390991 A CN109390991 A CN 109390991A CN 201710682210 A CN201710682210 A CN 201710682210A CN 109390991 A CN109390991 A CN 109390991A
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- China
- Prior art keywords
- battery
- valve
- capacitor
- controller
- storage capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims abstract description 75
- 238000004146 energy storage Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
Classifications
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
-
- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a control circuit powered by a gas valve battery, which comprises: the controller is used for determining whether the energy storage capacitor is charged through the IO port according to the acquired digital quantity of the battery and the capacitor charging boost value; the device is also used for driving the strong suction valve; also used for battery management and ignition control; the current limiting resistor is used for charging and limiting the current of the IO port; the single-phase switch is used for conducting when the strong suction valve is opened and supplying valve opening current to the strong suction valve through battery power supply; the energy storage capacitor is used for charging under the control of the strong suction valve controller; the strong suction valve is also used for providing auxiliary valve opening current for the strong suction valve when the voltage of the battery is insufficient and the strong suction valve is opened; a DC-DC power supply for supplying power to the controller; the invention also discloses a control method, which can manage the battery and drive the strong suction valve even if the internal resistance of the battery is larger, thereby improving the utilization rate of the battery to more than 95 percent.
Description
Technical field
The invention belongs to gas ignition control technology fields, and in particular to a kind of battery powered control circuit of gas valve and
Control method.
Background technique
Gas-cooker and gas heater are to prevent gas leakage, need to increase control valve, are not related to prevent from powering off valve suddenly
It closes, gas control valve must have the function of powering off valve closing；Electric current thus must be maintained in gas valve valve opening, and in gas utensil
When being powered with battery, the maintenance electric current of gas valve become the main consumption of battery especially solenoid valve valve opening when the big electricity that needs
Conductance sends a telegraph pond and is not durable, Given this reason, manual valve opening is used on many gas-cookers, and supply to gas valve using thermocouple
Electricity, to extend battery, using thermocouple in service life, response time Shortcomings.
Gas valve mode is driven using battery, service time of battery is first is that the maintenance of valve consumes, another most important original
Cause is the use with battery, and internal resistance gradually becomes larger, and is not enough to provide high current when to valve opening, many batteries are also
Strong suction valve cannot be opened when the capacity of 30-50%, be the main reason for service time of battery is short；User not only will frequently replace
Battery also results in and has the environmental pollution that the big wasting of resources, especially refuse battery may cause.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of low cost, high reliablity and can be improved battery
Gas valve battery powered control circuit and control method of the utilization rate 95% or more.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
The embodiment of the present invention provides a kind of battery powered control circuit of gas valve, characterized in that it comprises:
One controller determines whether through I/O port for the battery and capacitor charging boost value digital quantity according to acquisition to storage
It can capacitor charging；It is also used to inhale by force the driving of valve；It is also used to battery management and ignition control；
One current-limiting resistance is used for I/O port charging current limiter；
One single-phase switch is powered by battery for being connected when opening strong suction valve and provides valve opening electricity to strong valve of inhaling
Stream；
One storage capacitor, for charging under the control for inhaling valve control by force；It is also used to insufficient in cell voltage and opens
When Qi Qiang inhales valve, auxiliary valve opening electric current is provided to strong valve of inhaling；
One DC-DC power source, for powering to controller.
In above scheme, the DC-DC power source includes:
The boost inductance and freewheeling diode of one concatenation, for powering after opening strong suction valve to controller；
One DC-DC chip, is connected to the both ends of freewheeling diode, is used for when opening strong suction valve, after cell voltage is boosted
It powers to controller.
The embodiment of the present invention also provides a kind of battery powered control circuit of gas valve comprising: controller U4, the first electricity
Hinder R1, the first storage capacitor EC1, the second diode D2, DC-DC power source, the 4th end of the controller U4 through first resistor R1,
Second diode D2 connects battery, and the 13rd end and the 18th end meet DC-DC power source, the first resistor R1, the second diode D2 respectively
Between through the first storage capacitor EC1 be grounded.
In above scheme, the DC-DC power source includes boost inductance L1, first diode D1, DC-DC chip U2, described
Boost inductance L1, first diode D1 series connection, one end of the 5th termination first diode D1 of the DC-DC chip U2, the 2nd, 3
End connects the other end of first diode D1 altogether and meets controller U4 altogether, and the 4th end is connected to one end of boost inductance L1 and connects altogether
Battery, the 1st end meet controller U4 all the way.
In above scheme, the DC-DC power source further includes the second storage capacitor EC2, third storage capacitor EC3, the first electricity
Hold C1, the second capacitor C2, second resistance R2, the 4th end of the DC-DC chip U2 meets boost inductance L1 through first capacitor C1 all the way
One end and connect battery altogether, another way meets controller U4 through the second capacitor C2, and the another way at the 1st end connects electricity through second resistance R2
Pond；Parallel connection the second storage capacitor EC2, third storage capacitor EC3 are distinguished on the first capacitor C1, the second capacitor C2.
In above scheme, the 4th end another way of the DC-DC chip U2 and the second capacitor C2 indirectly.
It further comprise 3rd resistor R3, third capacitor C3, the 4th capacitor C4, the controller U4 in above scheme
The 16th, 18 ends connect altogether through third capacitor C3, the 4th capacitor C4 respectively, the 17th end the 16th, 18 ends total contact ground connection, the 15th
End is connected to the 16th end through 3rd resistor R3.
The embodiment of the present invention also provides a kind of burner, including the control circuit as described in any one of above scheme.
The embodiment of the present invention also provide it is a kind of any one of using the above scheme described in the battery powered control of gas valve
The control method of circuit processed, this method are as follows: under fired state, battery and capacitor charging that controller is acquired according to current-limiting resistance
It when boost value digital quantity determines cell voltage deficiency, is charged by I/O port to storage capacitor, drives strong suction valve in the controller
Moment valve electric discharge is inhaled to strong by storage capacitor, while single-way switch conducting provides valve opening electric current to valve side by side.
In above scheme, this method further includes, and after firing, closes DC-DC power source and powers to controller, open battery to
Controller power supply.
In above scheme, this method further includes that the controller is charged by I/O port to storage capacitor, and capacitor charging
Boost value digital quantity stops charging after reaching predetermined value.
Compared with prior art, charging current of the invention is smaller, even if the internal resistance of cell is larger, can still drive strong suction
Valve, so that battery utilization rate be made to be increased to 95% or more.
Detailed description of the invention
Fig. 1 provides a kind of functional block diagram of battery powered control circuit of gas valve for the embodiment of the present invention；
Fig. 2 provides a kind of circuit diagram of battery powered control circuit of gas valve for the embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention provides a kind of battery powered control circuit of gas valve, as shown in Figure 1, comprising:
One controller determines whether through I/O port for the battery and capacitor charging boost value digital quantity according to acquisition to storage
It can capacitor charging；It is also used to inhale by force the driving of valve；It is also used to battery management and ignition control；
One current-limiting resistance is used for I/O port charging current limiter；
One single-phase switch is powered by battery for being connected when opening strong suction valve and provides valve opening electricity to strong valve of inhaling
Stream；
One storage capacitor, for charging under the control for inhaling valve control by force；It is also used to insufficient in cell voltage and opens
When Qi Qiang inhales valve, auxiliary valve opening electric current is provided to strong valve of inhaling；
One DC-DC power source, for powering to controller.
The DC-DC power source includes:
The boost inductance and freewheeling diode of one concatenation, for powering after opening strong suction valve to controller；
One DC-DC chip, is connected to the both ends of freewheeling diode, is used for when opening strong suction valve, after cell voltage is boosted
It powers to controller.
Working principle of the present invention is as follows:
Capacitive energy storage calculation formula: W=1/2CU2
It is capacitance U is voltage on capacitor that W, which is energy storage C, in formula
The present invention can save the utilization rate of battery, and VOUT=VBAT-r*I, VOUT are battery bringing onto load output voltage,
VBAT is battery without load voltage, and I is bringing onto load electric current, and r is the internal resistance of cell.The internal resistance of battery with using the time to increase,
Internal resistance is increasing, and when generally using half capacity, internal resistance can be greater than 1.5 ohm, and with the reduction of capacity, internal resistance continues to increase
Greatly；And the existing strong general minimum current of driving current for inhaling valve is in 150mA or more, using circuit, in battery, there are also 30- now
Strong suction valve cannot be opened when 50% capacity.
Charging current of the invention is smaller, even if the internal resistance of cell is larger, strong suction valve can be still driven, so as to so that electricity
Pond utilization rate is increased to 95% or more.
The present invention as low as 2V, more than 5 Europe of internal resistance remains to reliably to open and strong inhales valve and work, system operating current in cell voltage
In 1mA or less.
When the burner is in operation, at this moment battery only needs to power to controller and inhales the maintenance electric current of valve by force, at this moment works
At this moment electric current very little, non-transformer fluctuation can close DC-DC power source, the working power of controller passes through boost inductance and afterflow two
Pole pipe is supplied by VBAT；High pressure can be provided by DC-DC power source when strong suction valve is opened in unlatching to power to storage capacitor, combustion state
It is to close DC-DC power source, reduces power consumption, improve battery utilization rate.
The embodiment of the present invention also provides a kind of battery powered control circuit of gas valve, as shown in Fig. 2, comprising: controlling
Device U4, first resistor R1, the first storage capacitor EC1, the second diode D2, DC-DC power source, the 4th end warp of the controller U4
First resistor R1, the second diode D2 connect battery, and the 13rd end and the 18th end meet DC-DC power source, the first resistor R1, respectively
It is grounded between two diode D2 through the first storage capacitor EC1.
The DC-DC power source include boost inductance L1, first diode D1, DC-DC chip U2, the boost inductance L1,
First diode D1 series connection, the DC-DC chip U2 the 5th termination first diode D1 one end, the 2nd, 3 ends connect the one or two altogether
The other end of pole pipe D1 and controller U4 is met altogether, the 4th end is connected to one end of boost inductance L1 and connects battery altogether, the 1st end
Controller U4 is met all the way.
The DC-DC power source further includes the second storage capacitor EC2, third storage capacitor EC3, first capacitor C1, the second electricity
Hold C2, second resistance R2, the 4th end of the DC-DC chip U2 all the way through first capacitor C1 connect boost inductance L1 one end and
Battery is connect altogether, and another way meets controller U4 through the second capacitor C2, and the another way at the 1st end connects battery through second resistance R2；Described
Parallel connection the second storage capacitor EC2, third storage capacitor EC3 are distinguished on one capacitor C1, the second capacitor C2.The DC-DC chip U2
The 4th end another way and the second capacitor C2 indirectly.
It further comprises 3rd resistor R3, third capacitor C3, the 4th capacitor C4, the controller U4 the 16th, 18 ends
Connect altogether through third capacitor C3, the 4th capacitor C4 respectively, the 17th end the 16th, 18 ends total contact ground connection, the 15th end through third electricity
Resistance R3 is connected to the 16th end.
The embodiment of the present invention also provides a kind of burner, including above-mentioned control circuit.
The embodiment of the present invention also provides a kind of control method, this method are as follows: under fired state, controller is according to current limliting electricity
When the battery and capacitor charging boost value digital quantity for hindering acquisition determine cell voltage deficiency, charged by I/O port to storage capacitor,
The strong moment for inhaling valve is driven to inhale valve coil electric discharge to strong by storage capacitor in the controller, while single-way switch conducting is arranged side by side
Valve opening electric current is provided to valve.
Further, this method further includes under successfully combustion position of lighting a fire, closing DC-DC power source and powering to controller, institute
Battery is stated to power to controller.
Further, this method further includes that the controller is charged by I/O port to storage capacitor, and capacitor charging is boosted
Value digital quantity stops charging after reaching predetermined value.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of battery powered control circuit of gas valve, characterized in that it comprises:
One controller determines whether to give energy storage electricity by I/O port for the battery and capacitor charging boost value digital quantity according to acquisition
Capacity charge；It is also used to inhale by force the driving of valve；It is also used to battery management and ignition control；
One current-limiting resistance is used for I/O port charging current limiter；
One single-phase switch is powered by battery for being connected when opening strong suction valve and provides valve opening electric current to strong valve of inhaling；
One storage capacitor, for charging under the control for inhaling valve control by force；It is also used to insufficient in cell voltage and opens strong
When inhaling valve, auxiliary valve opening electric current is provided to strong valve of inhaling；
One DC-DC power source, for powering to controller.
2. the battery powered control circuit of gas valve according to claim 1, which is characterized in that the DC-DC power source packet
It includes:
The boost inductance and freewheeling diode of one concatenation, for powering after opening strong suction valve to controller；
One DC-DC chip, is connected to the both ends of freewheeling diode, is used for when opening strong suction valve, to control after cell voltage is boosted
Device power supply processed.
3. a kind of battery powered control circuit of gas valve, characterized in that it comprises: controller U4, first resistor R1, first
Storage capacitor EC1, the second diode D2, DC-DC power source, the 4th end of the controller U4 is through first resistor R1, the second diode
D2 connects battery, and the 13rd end and the 18th end connect DC-DC power source respectively, through first between the first resistor R1, the second diode D2
Storage capacitor EC1 ground connection.
4. the battery powered control circuit of gas valve according to claim 3, which is characterized in that the DC-DC power source packet
Include boost inductance L1, first diode D1, DC-DC chip U2, the boost inductance L1, first diode D1 series connection, the DC-
One end of the 5th termination first diode D1 of DC chip U2, the 2nd, 3 ends connect the other end of first diode D1 altogether and connect control altogether
Device U4 processed, the 4th end are connected to one end of boost inductance L1 and connect battery altogether, and the 1st end meets controller U4 all the way.
5. the battery powered control circuit of gas valve according to claim 4, which is characterized in that the DC-DC power source is also
Including the second storage capacitor EC2, third storage capacitor EC3, first capacitor C1, the second capacitor C2, second resistance R2, the DC-
The 4th end of DC chip U2 connects one end of boost inductance L1 through first capacitor C1 all the way and connects battery altogether, and another way is through the second electricity
Hold C2 and meet controller U4, the another way at the 1st end connects battery through second resistance R2；Divide on the first capacitor C1, the second capacitor C2
Not parallel connection the second storage capacitor EC2, third storage capacitor EC3.
6. according to the battery powered control circuit of gas valve according to claim 5, which is characterized in that the DC-DC core
The 4th end another way of piece U2 and the second capacitor C2 indirectly.
7. according to the battery powered control circuit of gas valve according to claim 3-6 any one, which is characterized in that its
Further comprise 3rd resistor R3, third capacitor C3, the 4th capacitor C4, the controller U4 the 16th, 18 ends are respectively through third
Capacitor C3, the 4th capacitor C4 connect altogether, the 17th end the 16th, 18 ends total contact ground connection, the 15th end is connected to the through 3rd resistor R3
16 ends.
8. a kind of control method using the battery powered control circuit of gas valve described in claim 1-7 any one,
It is characterized in that, this method are as follows: under fired state, when controller determines cell voltage deficiency according to the battery digital quantity of acquisition,
It is charged by I/O port to storage capacitor, drives the strong moment for inhaling valve to put by storage capacitor to strong valve coil of inhaling in the controller
Electricity, while single-way switch conducting provides valve opening electric current to valve side by side.
9. control method according to claim 8, which is characterized in that this method further includes, in successfully combustion position of lighting a fire
Under, it closes DC-DC power source and powers to controller, the battery is powered by L1, D1 to controller.
10. control method according to claim 8 or claim 9, which is characterized in that this method further includes that the controller passes through
I/O port charges to storage capacitor, and capacitor charging boost value digital quantity reaches stopping charging after predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710682210.7A CN109390991A (en) | 2017-08-10 | 2017-08-10 | Control circuit and control method for gas valve battery power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710682210.7A CN109390991A (en) | 2017-08-10 | 2017-08-10 | Control circuit and control method for gas valve battery power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109390991A true CN109390991A (en) | 2019-02-26 |
Family
ID=65415027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710682210.7A Pending CN109390991A (en) | 2017-08-10 | 2017-08-10 | Control circuit and control method for gas valve battery power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109390991A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922439A (en) * | 2021-08-27 | 2022-01-11 | 华帝股份有限公司 | Control circuit and control method of self-priming electromagnetic valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW459975U (en) * | 2001-03-09 | 2001-10-11 | Huang Jiun Cheng | Instant starting circuit device for electromagnetic valve of burner |
| CN201259328Y (en) * | 2008-07-18 | 2009-06-17 | 李秋达 | Water heater control device |
| CN106787665A (en) * | 2016-12-29 | 2017-05-31 | 金卡高科技股份有限公司 | A kind of instrument valve power supply control system |
| CN207218294U (en) * | 2017-08-10 | 2018-04-10 | 华帝股份有限公司 | Control circuit and combustor of gas valve battery power supply |
-
2017
- 2017-08-10 CN CN201710682210.7A patent/CN109390991A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW459975U (en) * | 2001-03-09 | 2001-10-11 | Huang Jiun Cheng | Instant starting circuit device for electromagnetic valve of burner |
| CN201259328Y (en) * | 2008-07-18 | 2009-06-17 | 李秋达 | Water heater control device |
| CN106787665A (en) * | 2016-12-29 | 2017-05-31 | 金卡高科技股份有限公司 | A kind of instrument valve power supply control system |
| CN207218294U (en) * | 2017-08-10 | 2018-04-10 | 华帝股份有限公司 | Control circuit and combustor of gas valve battery power supply |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922439A (en) * | 2021-08-27 | 2022-01-11 | 华帝股份有限公司 | Control circuit and control method of self-priming electromagnetic valve |
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