CN2325684Y - Device for automatically igniting gas burner - Google Patents
Device for automatically igniting gas burner Download PDFInfo
- Publication number
- CN2325684Y CN2325684Y CN 98223386 CN98223386U CN2325684Y CN 2325684 Y CN2325684 Y CN 2325684Y CN 98223386 CN98223386 CN 98223386 CN 98223386 U CN98223386 U CN 98223386U CN 2325684 Y CN2325684 Y CN 2325684Y
- Authority
- CN
- China
- Prior art keywords
- pulse generator
- combustion gas
- voltage pulse
- amplification circuit
- gas tool
- 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
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Abstract
The utility model relates to an automatic igniting device for gas ranges. The utility model is characterized in that an igniting needle (2) and a sensing needle (4) are arranged at a burning port (3) of a gas range; the igniting needle (2) is electrically connected with the high-voltage output terminal of a high-voltage pulse generator; the sensing needle (4) is electrically connected with the input terminal of a signal amplifying circuit; the output terminal of the signal amplifying circuit is connected with an electronic switch; the output terminal of the electronic switch is connected with the control terminal of the high-voltage pulse generator. The utility model automatic ignites the gas range to make the gas range burn again in the state that the fire of the gas range extinguishes, and a gas valve is still in an open state.
Description
The utility model relates to a kind of igniter of combustion gas tool.
In the prior art, the combustion gas tool is ignited it by the piezoelectric ceramics sparking when valve open, but in combustion process, can cause then that when flame overflows cause flame-out owing to for example wind of fortuitous event, boiling water seethe with excitement coal gas leaks in a large number, causes the user to poison.
The purpose of this utility model is to provide a kind of and still is under the state of opening automatically combustion gas tool automatic ignition device to the sparking of combustion gas tool at the flame-out but burnt gas valve of combustion gas tool.
The technical solution of the utility model is: be provided with igniting pin and sensing needle at the port place of combustion gas tool, described igniting pin is electrically connected with the high-voltage output end of high-voltage pulse generator, described sensing needle is electrically connected with the input of signal amplification circuit, the output termination electronic switch of described signal amplification circuit, the control end of the output termination high-voltage pulse generator of this electronic switch.
The utility model compared with prior art has following advantage:
After power switch and burnt gas valve are opened, high-voltage pulse generator discharges at the combustion gas tool by igniting, light flame, the sensing needle that is in together in the flame can receive the ultra-weak electronic signal of coming by the flame biography, this signal of telecommunication amplifies back control electronic switch through signal amplification circuit, makes high-voltage pulse generator stop electrion; After fray-out of flame, sensing needle does not receive the signal of telecommunication, and then electronic switch control high-voltage pulse generator begins sparking by the igniting pin, restrikes up to flame.Behind gas lockout valve, then the power supply of high-voltage pulse generator is cut off, and igniting stops.So the utility model can be in fray-out of flame but is struck sparks when still having coal gas, with the coal gas of restriking, prevents intoxication accident.
The utility model will be further described below in conjunction with drawings and Examples:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the circuit block diagram of igniter and signal amplification circuit;
Accompanying drawing 3 is the circuit theory diagrams of igniter and signal amplification circuit; Wherein:
[1]. igniter; [2]. the igniting pin; [3]. port; [4]. sensing needle; [5]. the combustion gas tool; [6]. burnt gas valve; [7]. power switch; [8]. power supply;
Embodiment: referring to accompanying drawing 1, a kind of combustion gas tool automatic ignition device, locate to be provided with igniting pin [2] and sensing needle [4] at the port [3] of combustion gas tool [5], described igniting pin [2] is electrically connected with the high-voltage output end of high-voltage pulse generator, described sensing needle [4] is electrically connected with the input of signal amplification circuit, the output termination electronic switch of described signal amplification circuit, the control end of the output termination high-voltage pulse generator of this electronic switch.Described combustion gas tool [5] is electrically connected with the power cathode or the positive source of high-voltage pulse generator and signal amplification circuit, so that can make sensing needle [4] obtain the signal of telecommunication by flame when flame combustion.Burnt gas valve [6] interlock of the power switch K of described high-voltage pulse generator and signal amplification circuit and combustion gas tool [5], when opening burnt gas valve [6] then power switch K also closed.Referring to accompanying drawing 3, after opening burnt gas valve [6] and being attached thereto moving power switch K, the oscillator that triode BG1 in the high-voltage pulse generator and resistance R 1 constitute promptly vibrates, be coupled to secondary through transformer B1, after diode D1 rectification, charge to capacitor C1 and C2, when the C1 charging voltage makes the controllable silicon SCR conducting, C2 discharges rapidly, produce high-tension electricity through step-up transformer B2 and send igniting pin [2], to combustion gas tool [5] discharge generation spark, the point coal gas, sensing needle this moment [4] is by receiving the ultra-weak electronic signal that conduction is come in the flame, through triode BG2, BG3, the signal amplification circuit that BG4 forms ends electronic switch BG5 after amplifying, based on the blocking of oscillator of BG1, igniting pin [2] discharge stops.In case flame-out, the then no signal of telecommunication input of sensing needle [4], the BG5 conducting is vibrated oscillator again, and igniting pin [2] discharges again.Described high-voltage pulse generator and signal amplification circuit can have multiple, and accompanying drawing 3 only is a kind of of embodiment.In the accompanying drawing 3, R3 is a resistance, and D2 is a bilateral diode, and E is a dc source, and K is a power switch.
Claims (3)
1. combustion gas tool automatic ignition device, it is characterized in that: locate to be provided with igniting pin [2] and sensing needle [4] at the port [3] of combustion gas tool [5], described igniting pin [2] is electrically connected with the high-voltage output end of high-voltage pulse generator, described sensing needle [4] is electrically connected with the input of signal amplification circuit, the output termination electronic switch of described signal amplification circuit, the control end of the output termination high-voltage pulse generator of this electronic switch.
2. combustion gas tool automatic ignition device according to claim 1 is characterized in that: described combustion gas tool [5] is electrically connected with the power cathode or the positive source of high-voltage pulse generator and signal amplification circuit.
3. combustion gas tool automatic ignition device according to claim 1 is characterized in that: burnt gas valve [6] interlock of the power switch K of described high-voltage pulse generator and signal amplification circuit and combustion gas tool [5].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223386 CN2325684Y (en) | 1998-03-02 | 1998-03-02 | Device for automatically igniting gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223386 CN2325684Y (en) | 1998-03-02 | 1998-03-02 | Device for automatically igniting gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2325684Y true CN2325684Y (en) | 1999-06-23 |
Family
ID=33974504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98223386 Expired - Fee Related CN2325684Y (en) | 1998-03-02 | 1998-03-02 | Device for automatically igniting gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2325684Y (en) |
-
1998
- 1998-03-02 CN CN 98223386 patent/CN2325684Y/en not_active Expired - Fee Related
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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 |