CN101182931A - Gas combustion range ignition drive controller - Google Patents
Gas combustion range ignition drive controller Download PDFInfo
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- CN101182931A CN101182931A CNA2007101254289A CN200710125428A CN101182931A CN 101182931 A CN101182931 A CN 101182931A CN A2007101254289 A CNA2007101254289 A CN A2007101254289A CN 200710125428 A CN200710125428 A CN 200710125428A CN 101182931 A CN101182931 A CN 101182931A
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- comparator
- reference voltage
- drive controller
- ignition drive
- voltage
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Abstract
The invention relates to an ignition drive controller for a gas cooker, which comprises touch keys, a first comparator, a second comparator and a third comparator. One end of the touch keys is connected with a power supply outside, and the other end of the gentle touch keys is connected with the first input ends of the first comparator, the second comparator and the third comparator, and is connected with one end of capacitors and resistors which are connected in parallel. The other ends of the capacitors and the resistors which are connected in parallel are grounded. A first reference voltage, a second reference voltage and a third reference voltage are input to the second input ends of the first comparator, the second comparator and the third comparator respectively. The supply voltage is larger than the first reference voltage; the first reference voltage is larger than the second reference voltage; and the third reference voltage is larger than the second reference voltage. The output ends of the first comparator, the second comparator and the third comparator control the general supply of the system, a lighter and a gas valve respectively. The ignition drive control realizes the linked control of the general supply of the system, the lighter and the gas valve. When the power supply is switched on, the gas valve is opened and the cooker is ignited. The invention is simple in operation and the use security is improved.
Description
Technical field
The present invention relates to gas-cooker, more particularly, relate to a kind of gas combustion range ignition drive controller.
Background technology
Traditional gas-cooker generally all is to come the control point firearm and open air valve by mechanical device, and igniter needs external battery to come to provide power supply to the discharge terminal, has not only wasted resource but also contaminated environment.And the burnt gas valve of machinery control is too complicated when operation.
Thereby design the gas-cooker that adopts circuit control point firearm.The day for announcing is that the Chinese utility model patent ZL91209131.2 that January 22, notification number in 1992 are CN2093978U just discloses a kind of gas cooker igniter that uses AC power, as shown in Figure 1, its firing circuit is made of power switch K1, power supply indicator Z, fuse R0, capacitor C, diode D, button ignition switch K switch 2 and step-up transformer B.When power switch K1 is closed, 220 volts alternating currents and firing circuit connection, the K2-1 closing of contact of button ignition switch K2, the disconnection of K2-2 contact, 220 volts of AC powers are charged to capacitor C by diode D; When pressing button ignition switch K switch 2, K2-1 becomes disconnection by closure, 220 volts of power supplys disconnect, K2-2 becomes closure by disconnection, makes on the capacitor C charge stored by step-up transformer B primary coil L1 discharge, and L2 induces high voltage at the step-up transformer secondary coil, the two-stage of the discharge terminal that will join with L2 produces electric spark, at this moment, if gas valve is opened, can light.
Though adopt the gas-cooker of above-mentioned igniter can use the AC power circuit igniting, need not to use battery, but its power supply, igniter and gas valve are control separately, the user needs manually to press respectively K switch 1 and connects power supply, press the K2 igniting, and need open gas valve in advance.Thereby operation is still very complicated, does not realize the interlock of system's general supply, igniting and gas valve, and owing to need open gas valve in advance, also has certain potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is, at the aforesaid operations complexity of prior art, can't link and uneasy congruent defective, provides a kind of novel gas kitchen range ignition drive controller.
The technical solution adopted for the present invention to solve the technical problems is: a kind of gas combustion range ignition drive controller is provided, comprise and touch button and first comparator, second comparator, the 3rd comparator, a described end external power supply that touches button, the described other end that touches button is connected with the first input end of described first, second, third comparator respectively, and be connected the capacitance-resistance other end ground connection of wherein said parallel connection with a capacitance-resistance end of parallel connection; Second input of described first, second, third comparator is imported first reference voltage, second reference voltage, the 3rd reference voltage respectively, and supply voltage＞first reference voltage＞second reference voltage＞the 3rd reference voltage; The output of described first, second, third comparator is control system general supply, igniter and gas valve respectively.
In the above-mentioned gas combustion range ignition drive controller, described touching between button and the described capacitance resistance in parallel also is connected with divider resistance.
In the above-mentioned gas combustion range ignition drive controller, second input of each is connected between the divider resistance of two series connection in described first, second, third comparator, the divider resistance one end external power supply of wherein said series connection, other end ground connection.
In the above-mentioned gas combustion range ignition drive controller, the first input end of described first, second, third comparator is respectively positive input terminal separately.
In the above-mentioned gas combustion range ignition drive controller, the output of described first, second, third comparator is exported the unlatching of high level with control system general supply, igniter and gas valve respectively.
Implement gas combustion range ignition drive controller of the present invention; have following beneficial effect: the present invention adopts electronic circuit to control igniting and opens air valve, and the user only need touch button, can realize ignition function; and do not need other balancing cell, so very environmental protection and economizing on resources.And gas valve is controlled by electronic circuit, and the user need not to be concerned about, makes this invent hommization more.And the present invention has realized the interlock control of system's general supply, igniter and gas valve, opens gas valve and igniting in the time of opening power, and is simple to operate, and increased and used security.
Description of drawings
Fig. 1 is the circuit diagram of gas cooker igniter of the prior art;
Fig. 2 is the circuit diagram of an embodiment of gas combustion range ignition drive controller of the present invention;
Fig. 3 is the discharge curve of the capacitor that uses in the one embodiment of the invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
Interlock was simple and safe when the present invention adopted electronic circuit to control system's general supply of gas-cooker, igniting and gas valve.Fig. 1 is the circuit diagram of an embodiment of gas combustion range ignition drive controller of the present invention.As shown in Figure 1, this ignition drive controller circuit mainly constitutes by touching button K1, resistance R 1～R8, capacitor C 1 and three comparator U1A, U1B, U1C.Touch the end external power supply VDD of button K1,5V for example is used to control the switching on and off of power supply of this ignition drive controller.Touch the positive input terminal of the other end of button K1 and three comparator U1A, U1B, U1C and connect, for three comparators provide input voltage.One termination of shunt capacitance C1 and resistance R 2 goes into to touch between the positive input terminal of button K1 and three comparator U1A, U1B, U1C, the other end ground connection of shunt capacitance C1 and resistance R 2, thus form charging and discharging circuit.And, between the charging and discharging circuit of touching button K1 and shunt capacitance C1 and resistance R 2 formation, also be connected with divider resistance R1.
The negative input end of comparator U1A inserts two electric resistance partial pressure R3 of series connection and the A point between the R4, and an external power supply VDD (for example 5V) among two resistance R 3 that should series connection and the R4, another ground connection.Two resistance R 3 and the R4 of this series connection provide reference voltage for comparator U1A, i.e. the voltage at A point place.Comparator U1A compares the input voltage of positive input terminal and the reference voltage of negative input end, exports high or low level at its output, in order to the unlatching or the shutoff of control system general supply.For example, when the input voltage of positive input terminal during greater than the reference voltage of negative input end, comparator U1A exports high level, and the control system general supply is connected, and promptly the system power supply of gas valve and igniter is opened; When the input voltage of positive input terminal during less than the reference voltage of negative input end, comparator U1A output low level, the control system general supply is turn-offed, and promptly the system power supply of igniter and gas valve is cut off, and prevents misoperation.
Equally, the negative input end of comparator U1B inserts two divider resistance R5 of series connection and the B point between the R6, and an external power supply VDD (for example 5V) among two resistance R 5 that should series connection and the R6, another ground connection.Two resistance R 5 and the R6 of this series connection provide reference voltage for comparator U1B, i.e. the voltage at B point place.Comparator U1B compares the input voltage of positive input terminal and the reference voltage of negative input end, exports high or low level at its output, in order to opening or closing of control gas valve.For example, when the input voltage of positive input terminal during greater than the reference voltage of negative input end, comparator U1B exports high level, and the control gas valve is opened; When the input voltage of positive input terminal during less than the reference voltage of negative input end, comparator U1B output low level will be controlled gas valve and close.When comparator U1B output low level is closed with the control gas valve, can use existing various technology to keep opening of gas valve.For example, the electric current of opening of keeping gas valve can be provided by other sensor, for example provides by thermocouple.As long as the operation principle of thermocouple is heated exactly, will produce certain electric current.
The negative input end of comparator U1C inserts two divider resistance R7 of series connection and the C point between the R8, and an external power supply VDD (for example 5V) among two resistance R 7 that should series connection and the R8, another ground connection.Two resistance R 7 and the R8 of this series connection provide reference voltage for comparator U1C, i.e. the voltage at C point place.Comparator U1C is the input voltage of positive input terminal and the reference voltage of negative input end relatively, exports high or low level at its output, in order to the unlatching of control point firearm or close.For example, when the input voltage of positive input terminal during greater than the reference voltage of negative input end, comparator U1C exports high level, and the control point firearm is opened; When the input voltage of positive input terminal during less than the reference voltage of negative input end, comparator U1C output low level, the control point firearm cuts out.
The characteristics of touching button K1 are to become closed when staff is pressed, and just disconnect when staff leaves.Because staff has the certain reaction time by button the time, general about is 15 milliseconds, and in the time of touching button K1 closure, this ignition drive controller circuit powers on, and at this moment electric current is by 1 charging of 1 pair of capacitor C of resistance R.The value of resistance R 1 depends on the reaction time of staff button, and purpose is to guarantee that capacitor C 1 can be filled electricity in the time of staff reaction, and generally its value is probably at 100-700 ohm.Therefore, choose suitable resistance R 1 after, can guarantee to finish in moment capacitor C 1 the charging process of touching that button K1 disconnects.
After touching button K1 disconnection, the loop discharge that capacitor C 1 provides by resistance R 2.Shown in Figure 2 is the discharge curve of capacitor C 1 among the embodiment, and as can be seen from the figure, along with the passage of time t, the voltage of capacitor C 1 is from beginning to put littler and littler near supply voltage VDD.In order to realize the interlock control of system's general supply, igniter and gas valve, the present invention designs the reference voltage (being A, B, 3 voltages of locating of C) of three comparator U1A, U1B, U1C and the pass of supply voltage VDD is: VDD＞U
A＞U
B＞U
C＞0V.In the specific embodiment shown in Figure 2, VDD is 5V, U
ABe 2.0V, U
BBe 2.5V, U
CBe 3.0V.Above-mentioned relation between A, B, 3 voltages of locating of C and the supply voltage VDD can obtain by resistance R 3～R8 is got particular value, and this is a prior art, and is known for those of ordinary skills, no longer is described in detail at this.
Therefore, in the process of capacitor C 1 discharge, when the voltage of capacitor C 1 greater than C point voltage U
CThe time, comparator U1A exports high level, and the system power supply of gas valve and igniter is opened.Simultaneously, comparator U1B exports high level, and the gas valve by-pass valve control is opened, and combustion gas is flowed out.Simultaneously, comparator U1C also exports high level, and igniter is opened, and igniter begins to light combustion gas.Arrive this, whole ignition process is just finished synchronously.
Claims (5)
1. gas combustion range ignition drive controller, it is characterized in that, comprise and touch button and first comparator, second comparator, the 3rd comparator, a described end external power supply that touches button, the described other end that touches button is connected with the first input end of described first, second, third comparator respectively, and be connected the capacitance-resistance other end ground connection of wherein said parallel connection with a capacitance-resistance end of parallel connection; Second input of described first, second, third comparator is imported first reference voltage, second reference voltage, the 3rd reference voltage respectively, and supply voltage＞first reference voltage＞second reference voltage＞the 3rd reference voltage; The output of described first, second, third comparator is control system general supply, igniter and gas valve respectively.
2. gas combustion range ignition drive controller according to claim 1 is characterized in that, described touching between button and the described capacitance resistance in parallel also is connected with divider resistance.
3. gas combustion range ignition drive controller according to claim 1, it is characterized in that, second input of each is connected between the divider resistance of two series connection in described first, second, third comparator, the divider resistance one end external power supply of wherein said series connection, other end ground connection.
4. gas combustion range ignition drive controller according to claim 1 is characterized in that the first input end of described first, second, third comparator is respectively positive input terminal separately.
5. gas combustion range ignition drive controller according to claim 1 is characterized in that, the output of described first, second, third comparator is exported the unlatching of high level with control system general supply, igniter and gas valve respectively.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101254289A CN100552305C (en) | 2007-12-21 | 2007-12-21 | Gas combustion range ignition drive controller |
| PCT/CN2008/070797 WO2009079931A1 (en) | 2007-12-21 | 2008-04-25 | Control system for a gas cooker |
| US12/529,746 US8272376B2 (en) | 2007-12-21 | 2008-04-25 | Gas cooker control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101254289A CN100552305C (en) | 2007-12-21 | 2007-12-21 | Gas combustion range ignition drive controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101182931A true CN101182931A (en) | 2008-05-21 |
| CN100552305C CN100552305C (en) | 2009-10-21 |
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ID=39448296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101254289A Expired - Fee Related CN100552305C (en) | 2007-12-21 | 2007-12-21 | Gas combustion range ignition drive controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100552305C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246306A (en) * | 2013-04-11 | 2013-08-14 | 刘雄 | High-precision three-port chip |
| CN110687861A (en) * | 2019-10-31 | 2020-01-14 | 深圳前海中科胜铭科技有限公司 | Community gas security protection linkage method and system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2700025A1 (en) * | 1977-01-03 | 1978-07-13 | Jenaer Glaswerk Schott & Gen | CONTROL AND MONITORING SYSTEM FOR RADIATED GAS BURNERS FOR HEATING CERAMIC GLASS COOKING SURFACES |
| CN2085919U (en) * | 1990-07-21 | 1991-10-02 | 顾为东 | Automatic protection igniter for igniting and putting-out fire of gas range |
| CN2093978U (en) * | 1991-06-03 | 1992-01-22 | 李玉明 | Ac lighter of gas ranges |
| CN2132110Y (en) * | 1991-09-11 | 1993-05-05 | 秦皓 | Fully automatic controlled gaseous fuels stove |
| CN2429760Y (en) * | 2000-01-01 | 2001-05-09 | 陈玉山 | Computer gas stove |
| CN2558890Y (en) * | 2002-07-08 | 2003-07-02 | 黄钦祥 | Auto-controlled ignition gas cooker |
| CN2708134Y (en) * | 2004-06-07 | 2005-07-06 | 徐忠雄 | Automatic shut-off safety control circuit for gas flame detection |
| CN100489400C (en) * | 2006-07-04 | 2009-05-20 | 宁波方太厨具有限公司 | Gas appliance circuit capable of automatically prompting for power shortage |
-
2007
- 2007-12-21 CN CNB2007101254289A patent/CN100552305C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246306A (en) * | 2013-04-11 | 2013-08-14 | 刘雄 | High-precision three-port chip |
| CN110687861A (en) * | 2019-10-31 | 2020-01-14 | 深圳前海中科胜铭科技有限公司 | Community gas security protection linkage method and system |
| CN110687861B (en) * | 2019-10-31 | 2021-05-18 | 深圳前海中科胜铭科技有限公司 | Community gas security protection linkage method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100552305C (en) | 2009-10-21 |
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Granted publication date: 20091021 |