CN2708134Y - Automatic shut-off safety control circuit for gas flame detection - Google Patents
Automatic shut-off safety control circuit for gas flame detection Download PDFInfo
- Publication number
- CN2708134Y CN2708134Y CN 200420065577 CN200420065577U CN2708134Y CN 2708134 Y CN2708134 Y CN 2708134Y CN 200420065577 CN200420065577 CN 200420065577 CN 200420065577 U CN200420065577 U CN 200420065577U CN 2708134 Y CN2708134 Y CN 2708134Y
- Authority
- CN
- China
- Prior art keywords
- gas
- flame
- diode
- control circuit
- resistance
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Combustion (AREA)
Abstract
The utility model discloses an automatic shut-off safety control circuit for gas flame detection, which can be operated by matching with a plurality of gas switching valves. The start-up or closedown of the gas feeding valve is controlled by the utility model according to the detected burning status of the gas flame. The utility model consists of a power supply unit, a flame detection unit, a flame signal processing unit and an electromagnetic coil. The power supply unit is provided with a plurality of power switches which are arranged on the gas switching valve and controlled by the knob of the gas switching valves to open and close easily. The flame detection unit which is positioned near the flame burning place of the gas stove can transfer the detected message of the combustion state to a flame signal processing unit. The flame signal processing unit is used to control the electromagnetic coil to be excited or not according to the signal of the flame detection unit. The electromagnetic coil can drive the gas valve of the gas switching valve to close or open so as to control the feeding of the gas.
Description
Technical field
The utility model is relevant a kind of control circuit, refers in particular to the safety control circuit that a kind of gas flame detects and closes automatically.
Background technology
Press gas stove and be the culinary art of at present general family indispensability or the apparatus of heating, greatly facilitate though it brings people, yet it is in use as the careless slightly substantial risks such as blast, fire or gas poisoning that very easily produce.And be that the enhancement gas stove is safe in utilization, current existing many gas stoves are equiped with the gas safety device, the design of the major technique of these gas safety devices is that mat is provided with a detecting element near the gas stove fire again, for example be thermocouple, electron ion test bar, utilize this detecting element to measure the fired state of stove fire, department controls the unlatching of gas air-supplying valve or closes according to this, avoid burner under unburned state, still to continue to send methane gas, and the tragedy that causes gas poisoning or light a fire and blast again.
And the main core technology of aforementioned gas safety device be, get in touch the safety control circuit of this detecting unit department this gas valve opening and closing of control, so gas safety device usefulness good corrupt should department's control circuit be main key.No. 00172382 " safety gas furnace controller improved circuit () " patent case of known Taiwan patent announcement, and No. 00163892 " novel gas stove automatic safety controlling circuit (two) " patent case of Taiwan patent announcement, these control circuits slightly are by a power supply circuit portion, one power supply detects display circuit portion, two flame detection circuit portions, one power supply output driving circuit portion, one surveys the shake circuit, a control circuit part and a central control circuit portion form when certain, can show during use whether the driving power of safety control circuit is normal, save the power consumption of safety automatic shutoff controller (magnetic valve), set service time accurately and prevent the malfunction of safety automatic shutoff controller, and prevent that gas stove from overturning the derivation fire because of earthquake causes when using, and, the safety detection of installing or improper use causes causes disaster because of losing efficacy.And the usefulness of accurate flame detection fired state of the true tool of aforementioned circuit and safety automatic shutoff gas air-supplying valve, precisely because the electronic loop design is complicated, element is various, not only production cost is high, and the fault probability improves relatively, often cause the general safety control circuit can't normal operation, the forfeiture safety device purpose is set.Its complicated electronic loop and element quite take electric power during running again, therefore except that the battery pack that must purchase big electric weight for using, and often the replacing battery can be guaranteed the normal operation of circuit to make the user perplex very much.
The utility model content
In view of this, the utility model is the safety control circuit that provides a kind of gas flame to detect and close automatically, it improves function at disappearance of the person of commonly using, and simplifies its electronic loop design and element, reach reduce production costs, the purpose of fault probability and the amount of saving energy.
For achieving the above object, the safety control circuit that a kind of gas flame that the utility model provides detects and closes automatically, be collocation one group of gas switch valve and operating, adopt the unlatching of department's control gas air-supplying valve or close that it comprises at least by detecting gas flame burning situation:
One power-supply unit is made up of a battery power and the power switch that is connected on positive electrode, and this power switch is installed on the aforementioned gas switch valve and is subjected to the spirally-controlled button department control of this switch valve and opens and closes freely;
One flame detection unit is one to have the metal barred body of good conductive properties, is installed near the flame combustion position of gas burner, the fired state news that detected can be suffered from being sent to flame signal processing unit described later;
One flame signal processing unit, be whether adopt department control solenoid described later according to the signal of flame detection unit excitatory, it comprises first resistance, first diode, second resistance, the 3rd resistance, second diode, first capacitor, first diode, the 3rd diode, the 4th diode and the 4th resistance and a solenoid, be to be connected in aforementioned flame signal processing unit, the gas valve that can drive aforementioned gas switch valve is done the action of switching, whether to control the gas gas supply;
It is characterized in that: when this power switch forms closed circuit (ON), this power supply power supply and the general safety control circuit comes into operation; This flame detection unit detect during the flame signal, to produce current signal and make first and second diode current flow, electric charge on first capacitor is to second diode discharge then, make diode be anti-partially, make the 3rd not conducting of diode, the then conducting of the 4th diode, state continuance supply Device in Gas to the burner that makes this solenoid driving gas valve remain on unlatching burns; Again this flame detection unit detect during no flame signal, no current first and second resistance of flowing through, two not conductings of diode, this moment, positive voltage V+ charged to first capacitor via the 4th resistance, and the charging voltage of first capacitor makes diode become positively biased, makes the 3rd diode current flow, the 4th then not conducting of diode this moment, this solenoid can't drive the gas valve and be held open, and makes this valve cover the gas air supply channel.
The safety control circuit that described gas flame detects and closes automatically, wherein this first diode is the preposition amplification that detects signal as flame.
The safety control circuit that described gas flame detects and closes automatically, wherein this second diode is the secondary amplification that detects signal as this flame.
The safety control circuit that described gas flame detects and closes automatically, wherein the 3rd resistance is as the current limliting commissure between first diode, second diode.
The safety control circuit that described gas flame detects and closes automatically, wherein aforementioned positive voltage V+ charges to its voltage via the 4th resistance to first capacitor can make diode positively biased, and this charging interval was set between 1.5 to 6 seconds.
Description of drawings
Relevant other features of the present utility model and function are further described through cooperating following accompanying drawing.
Fig. 1 is a circuit diagram of the present utility model.
The specific embodiment
As shown in drawings, this safety control circuit is to comprise a flame detection unit 10, a flame signal processing unit 20, a power-supply unit 30 and a solenoid 40; And this power-supply unit 30 is provided with a power switch, and this power switch is that associated being installed on the gas switch valve seat (is not shown in drawing), and is subjected to the spirally-controlled button department control of this switch valve and is out or closes state; This flame detection unit 10 is installed near the flame combustion position (not being shown in drawing) of gas burner, the fired state message that is detected can be sent to this flame signal processing unit 20, whether this flame signal processing unit is taken charge of this solenoid 40 of control according to this according to the fired state of stove fire excitatory.And this solenoid 40 can drive the action that the gas valve (not being shown in drawing) of this gas switch valve seat is done switching, whether to control the gas gas supply.
Below cooperate illustrated electronic loop setting to further specify the utility model function mode and efficacy characteristics thereof.Wherein, this flame detection unit 1O one has the metal barred body of good conductive properties; And this flame signal processing unit 20 comprises first resistance R 1, the first diode Q1, second resistance R 2, the 3rd resistance R 3, the second diode Q2, the first capacitor C1, the first diode D1, the 3rd diode Q3, the 4th diode Q4 and the 4th resistance R 4.This power-supply unit 30 is made up of a battery power BT and the power switch S1 that is connected on positive electrode; And this solenoid 40 is to be connected in aforementioned flame signal processing unit 20.
When enabling Gas cooker, the user give as security into and the rotation gas switch spirally-controlled button to light burner flame, go into and spinning movement the signature of gas switch spirally-controlled button this moment, also make the power switch S1 of this safety control circuit form closed circuit (ON), power supply BT power supply and the general safety control circuit comes into operation; This flame detection unit 10 serial connections first resistance R 1 is connected to the first diode Q1, electric current (flame detection signal) first resistance R 1 of flowing through when having flame, burner is arranged, this first diode Q1 detects the preposition amplification of signal as flame, when fire is arranged, the first diode Q1 conducting, second resistance R 2 has electric current to pass through; And the second diode Q2 is the secondary amplification that detects signal as this flame, when fire, and the second diode Q2 conducting, otherwise not conducting; The 3rd resistance R 3 is as the current limliting commissure between the first diode Q1, the second diode Q2; When the second diode Q2 conducting, electric charge on the first capacitor c1 discharges to the second diode Q2, this moment, the first diode D1 was partially anti-, make the 3rd not conducting of diode Q3, the 4th then conducting of diode Q4, can drive these solenoid 40 generation magnetic force the gas valve is held the state that remains on unlatching, burn to continue supply Device in Gas to burner.
Again when the burner fray-out of flame, no current flow through a R1, second resistance R 2, the first and second diode Q1, not conducting of Q2, this moment, V+ was via 4 pairs first capacitor C1 chargings of the 4th resistance R, (be set between 1.5 to 6 seconds) after a period of time, the charging voltage of the first capacitor C1 makes diode D1 positively biased, and make the 3rd diode Q3 conducting, the 4th then not conducting of diode Q4 this moment, this solenoid 40 can't drive and the gas valve is decontroled, make this valve cover this gas air inlet and cut off Device in Gas and advance to continue and supply with burner, avoid gas to leak.
The above only is in order to explain preferred embodiment of the present utility model; be not that attempt is done any pro forma restriction to the utility model according to this; therefore; all have in that identical utility model spirit is following do relevant any modification of the present utility model or change, all must be included in the category of the utility model intention protection.
Claims (5)
1, a kind of gas flame safety control circuit that detects and close automatically is one group of gas switch valve of collocation and operating, and adopts the unlatching of department's control gas air-supplying valve or closes by detecting gas flame burning situation, and it comprises at least:
One power-supply unit is made up of a battery power and the power switch that is connected on positive electrode, and this power switch is installed on the aforementioned gas switch valve and is subjected to the spirally-controlled button department control of this switch valve and opens and closes freely;
One flame detection unit is one to have the metal barred body of good conductive properties, is installed near the flame combustion position of gas burner, the fired state news that detected can be suffered from being sent to flame signal processing unit described later;
One flame signal processing unit, be whether adopt department control solenoid described later according to the signal of flame detection unit excitatory, it comprises first resistance, first diode, second resistance, the 3rd resistance, second diode, first capacitor, first diode, the 3rd diode, the 4th diode and the 4th resistance and a solenoid, be to be connected in aforementioned flame signal processing unit, the gas valve that can drive aforementioned gas switch valve is done the action of switching, whether to control the gas gas supply;
It is characterized in that: when this power switch form closed circuit, this power supply power supply and the general safety control circuit comes into operation; This flame detection unit detect during the flame signal, to produce current signal and make first and second diode current flow, electric charge on first capacitor is to second diode discharge then, make diode be anti-partially, make the 3rd not conducting of diode, the then conducting of the 4th diode, state continuance supply Device in Gas to the burner that makes this solenoid driving gas valve remain on unlatching burns; Again this flame detection unit detect during no flame signal, no current first and second resistance of flowing through, two not conductings of diode, this moment, positive voltage V+ charged to first capacitor via the 4th resistance, and the charging voltage of first capacitor makes diode become positively biased, makes the 3rd diode current flow, the 4th then not conducting of diode this moment, this solenoid can't drive the gas valve and be held open, and makes this valve cover the gas air supply channel.
2, gas flame as claimed in claim 1 detects and reaches the safety control circuit of closing automatically, it is characterized in that, wherein this first diode is the preposition amplification that detects signal as flame.
3, gas flame as claimed in claim 1 detects and reaches the safety control circuit of closing automatically, it is characterized in that, wherein this second diode is the secondary amplification that detects signal as this flame.
4, gas flame as claimed in claim 1 detects and reaches the safety control circuit of closing automatically, it is characterized in that wherein the 3rd resistance is as the current limliting commissure between first diode, second diode.
5, gas flame as claimed in claim 1 detects and reaches the safety control circuit of closing automatically, it is characterized in that, wherein aforementioned positive voltage V+ charges to its voltage via the 4th resistance to first capacitor can make diode positively biased, and this charging interval was set between 1.5 to 6 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420065577 CN2708134Y (en) | 2004-06-07 | 2004-06-07 | Automatic shut-off safety control circuit for gas flame detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420065577 CN2708134Y (en) | 2004-06-07 | 2004-06-07 | Automatic shut-off safety control circuit for gas flame detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2708134Y true CN2708134Y (en) | 2005-07-06 |
Family
ID=34852305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420065577 Expired - Fee Related CN2708134Y (en) | 2004-06-07 | 2004-06-07 | Automatic shut-off safety control circuit for gas flame detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2708134Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100552305C (en) * | 2007-12-21 | 2009-10-21 | 深圳和而泰智能控制股份有限公司 | Gas combustion range ignition drive controller |
| TWI512246B (en) * | 2013-10-16 | 2015-12-11 | Lite On Electronics Guangzhou | Gas stove with flame detection |
-
2004
- 2004-06-07 CN CN 200420065577 patent/CN2708134Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100552305C (en) * | 2007-12-21 | 2009-10-21 | 深圳和而泰智能控制股份有限公司 | Gas combustion range ignition drive controller |
| TWI512246B (en) * | 2013-10-16 | 2015-12-11 | Lite On Electronics Guangzhou | Gas stove with flame detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101598354B (en) | Gas stove ignition device | |
| CN1828143A (en) | Control device for methane combustion utensil | |
| CN202675386U (en) | Flame-out protection device for gas stove | |
| CN2708134Y (en) | Automatic shut-off safety control circuit for gas flame detection | |
| CN204554902U (en) | A kind of kitchen range flameout control circuit and adopt the kitchen range of this circuit | |
| CN207132385U (en) | A kind of gas-cooker | |
| CN201531920U (en) | Ignition device of gas kitchen range | |
| CN201302296Y (en) | A full-automatic negative pressure combustor control system | |
| CN208967846U (en) | Gas equipment | |
| CN2861856Y (en) | Self-generation gas water heater | |
| CN1195955C (en) | Combustion apparatus | |
| CN102425810A (en) | Pulse ignition system of field effect ion induction stove | |
| CN208804720U (en) | A kind of kitchen range smart flameout circuit | |
| CN2586907Y (en) | Flame-out protection safety gas kitchen range | |
| CN202836250U (en) | Nozzle controller | |
| CN102538031B (en) | Fire igniting and extinguishing method and fire igniting and extinguishing system for commercial kitchen range | |
| CN206626618U (en) | Gas-cooker | |
| CN2285449Y (en) | Fully automatic gas water-heater capable of preventing incomplete combustion | |
| CN217423328U (en) | Flame detection circuit of gas stove and gas stove | |
| CN210891778U (en) | Flame-out protection ignition controller capable of sensing wavelength | |
| CN2777389Y (en) | Automatic controller for gas range | |
| CN203628730U (en) | Multi-function gas stove | |
| CN202419724U (en) | Pulse igniter for field effect ionic induction stove | |
| CN209432911U (en) | Gas equipment battery power prompt system and gas equipment | |
| CN216056471U (en) | Power-off control device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |