CN2062415U - Electric spark igniter for combustable gas - Google Patents
Electric spark igniter for combustable gas Download PDFInfo
- Publication number
- CN2062415U CN2062415U CN 89216973 CN89216973U CN2062415U CN 2062415 U CN2062415 U CN 2062415U CN 89216973 CN89216973 CN 89216973 CN 89216973 U CN89216973 U CN 89216973U CN 2062415 U CN2062415 U CN 2062415U
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- CN
- China
- Prior art keywords
- triode
- electric spark
- circuit
- capacitor
- utility
- 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.)
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model discloses an electric spark igniter for combustible gas, which is composed of a pulse oscillator circuit, an induction ignition system and a high voltage pulse forming circuit. The utility model is characterized in that the high voltage pulse forming circuit is composed of a diode D, a triode BG-[2], a capacitor C and a resistor R-[2]; one output end of the pulse oscillator circuit is connected with the collector of the triode BG-[2] through the diode D; the other output end of the pulse oscillator is connected with the emitter of the triode BG-[2]. Compared with the prior art, the utility model has the advantages of lower production cost and longer service life.
Description
The utility model relates to a kind of igniter of fuel gas, belongs to the igniter of using electric spark.
At present, people use the spark ignition device of the various structures that are used as the fuel gas igniting comparatively widely, no matter be the igniter of hand-held, or with the combustion gas incorporated automatic ignition device of signing an undertaking, its type is broadly divided into two classes, one class is to be the igniter of power supply with the piezoelectric ceramics, and another kind of is to be the igniter of power supply with alternating current or direct current.Wherein, the hand-held electric spark igniter of forming with single battery because that it lights mechanism is simple, safe in utilization, easy to maintenance, and is subjected to people's welcome.
This electric spark igniter, ignition as common in the market Jiangsu factory production, mainly comprise the pulse oscillation circuit of forming by a low-frequency low-power transistor, miniature transformer, small-power resistance and dc source, comprise the inductive ignition system that forms by high-tension coil and ignitor gap, certainly, comprise that also a high-voltage pulse that uses with pulse oscillation circuit, inductive ignition system support forms circuit.
But it is comparatively complicated that the high-voltage pulse of this igniter forms circuit, used controllable silicon, diac etc. at six interior components and parts, and cost is higher.Particularly because the easy punch through damage of its diac that adopts, the therefore service life of having reduced igniter.
The purpose of this utility model provides a kind of new electric spark igniter, and the result of use of this igniter is better than prior art, and the composed component number of its high-voltage pulse that adopts formation circuit is few, and production cost reduces, and prolong service life.
Main points of the present utility model are that it is to have used transistorized avalanche theory that its high-voltage pulse that adopts forms circuit, utilize transistor in the negative resistance charactertistic that avalanche breakdown region had, and produce big amplitude, high-speed pulse current.
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is an electrical schematic diagram of the present utility model.
The utility model forms circuit by pulse oscillation circuit A, the B of inductive ignition system and high-voltage pulse and forms.High-voltage pulse forms circuit and has adopted diode D, triode BG2, capacitor C and resistance R 2.One end of pulse oscillation circuit output links to each other with the colelctor electrode of triode BG2 by diode D, and the other end is connected with the emitter-base bandgap grading of BG2, and the two ends of resistance R 2 connect base stage and the emitter-base bandgap grading of BG2 respectively, and capacitor C is in parallel with BG2 by the L3 of inductive ignition system.Its operation principle is described below: form pulse oscillation circuit by dc source E, resistance R 1, transistor BG1, transformer B1 and K switch.By the pulse current of this circuit output after diode D rectification, constantly capacitor C is charged, because capacitor C is in parallel with triode BG2, go up the continuous rising of voltage along with capacitor C, electric field in the triode BG2 collector junction space-charge region strengthens thereupon, and forms electron hole pair under the highfield effect.The same with the original electron hole motion round about of the new electronics that produces with the hole, regain enough energy after, produce electron hole pair again by colliding again.When backward voltage increased to avalanche voltage, reversing the current sharply increased, and had just caused the avalanche breakdown of collector junction, and the voltage on the capacitor C discharges rapidly by the elementary winding L 3 of transformer B2.Because the internal resistance of triode is very little during avalanche breakdown, so instantaneous surge current is very big, this discharge process produces the precipitous pulse in forward position in the primary winding L3 of B2, and induce high-voltage pulse more than 10 kilovolts at secondary windings L4, the disruptive discharge electrode gap forms pilot spark.After discharge finished, triode BG2 recovered cut-off state rapidly, and capacitor C begins charging again, and repeated said process.
The utility model is owing to adopted above-mentioned high-voltage pulse formation circuit, compared to existing technology, used less each one in diac and capacitor, and replace controllable silicon with triode, there is not triggering system, so reduced production cost, particularly because the minimizing of semiconductor type components and parts, corresponding service life of improving this igniter.
Embodiment of the present utility model as shown in drawings, wherein E adopts a joint dry cell, R1 is 51 ohm, the armature winding L1 of B1 is 100 circles, centre tap, secondary windings are 1000 circles, BG1 adopts 3AX31, the operating current of BG1 is chosen in the 180-200 milliampere. Commutation diode D adopts 1N4007, and capacitor C value is 0.22 microfarad, and BG2 adopts DD01, and BVcbo is greater than 300 volts, and resistance R 2 is generally got 1 kilohm to 10 kilohms, and the BVceR that makes triode BG2 is 300 to 450 volts. The primary and secondary winding L 3 of B2, L4 are respectively 19 circles and 2000 circles.
Claims (1)
- A kind of fuel gas electric spark igniter comprises that pulse oscillation circuit, inductive ignition system and high-voltage pulse form circuit, it is characterized in that high-voltage pulse forms circuit by diode D, triode BG 2, capacitor C and resistance R 2Form, an end of pulse oscillation circuit output is by diode D and triode BG 2Colelctor electrode link to each other the other end and BG 2Emitter-base bandgap grading link to each other resistance R 2Two ends meet BG respectively 2Base stage and emitter-base bandgap grading, the L of capacitor C by the inductive ignition system 3With triode BG 2In parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216973 CN2062415U (en) | 1989-09-18 | 1989-09-18 | Electric spark igniter for combustable gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216973 CN2062415U (en) | 1989-09-18 | 1989-09-18 | Electric spark igniter for combustable gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2062415U true CN2062415U (en) | 1990-09-19 |
Family
ID=4872315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89216973 Withdrawn CN2062415U (en) | 1989-09-18 | 1989-09-18 | Electric spark igniter for combustable gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2062415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966972A (en) * | 2012-11-29 | 2013-03-13 | 天津市禾厘油气技术有限公司 | Igniter for flare boom |
-
1989
- 1989-09-18 CN CN 89216973 patent/CN2062415U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966972A (en) * | 2012-11-29 | 2013-03-13 | 天津市禾厘油气技术有限公司 | Igniter for flare boom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |