CN2236552Y - Electronic igniter for gasoline engine - Google Patents
Electronic igniter for gasoline engine Download PDFInfo
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- CN2236552Y CN2236552Y CN 95232386 CN95232386U CN2236552Y CN 2236552 Y CN2236552 Y CN 2236552Y CN 95232386 CN95232386 CN 95232386 CN 95232386 U CN95232386 U CN 95232386U CN 2236552 Y CN2236552 Y CN 2236552Y
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- control circuit
- circuit
- igniter
- pulse
- timing
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- 238000006243 chemical reaction Methods 0.000 claims description 10
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Abstract
The electronic igniter for gasoline engine consists of pulse signal generator circuit, timing control circuit, HF oscillator circuit, high voltage generator circuit and filter circuit connected to the timing control circuit, the timing control circuit is one-way trigger circuit, the RC delay circuit has photosensitive resistor, light emitting diode with follow-up voltage synchronous with the rotation speed of gasoline engine beside the photosensitive resistor, and the timing signal is HF oscillator wave boosted by pulse transformer to produce timing sparks in the spark plug. The igniter changes the traditional mechanical timing and high-voltage distribution and high-voltage coil of the silicon steel sheet iron core. Accurate timing, high energy and long service life.
Description
The utility model relates to a kind of petrol engine igniter, particularly a kind of advance/retard mechanism of petrol engine igniter and high-tension electricity generating means.
The petrol engine igniter has distributor and spark coil.In the prior art, distributor has centrifugal, the vacuum advance/retard mechanism and the high tension distributor of mechanical structure; Spark coil is to be the high-voltage ignition coil of magnetic core with the silicon steel plate.The advance/retard mechanism of this igniter in use can influence the accurate of timing because of mechanical wear owing to be mechanical; High tension distributor is the distributing disk of mechanical contact-type, when each cylinder divides electricity, can cause the loss of high-pressure energy and the ablation of contact at distributing disk because of producing high tension spark between the contact; With the silicon steel plate be magnetic core high-voltage ignition coil in use, for making primary air reach magnetic saturation, primary air need have the time of a fixed length to be in "on" position, thereby make petrol engine when the slow-speed of revolution, not only take electricity but also burn primary air easily, and inaccessible magnetic saturation when high rotating speed makes the energy shortage of igniting.
The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose a kind of petrol engine ignition that has electronic timing and high voltage power distribution circuit and produce the igniting high-tension electricity with pulse transformer.
The utility model is realized with the following method.
The petrol engine ignition has igniter axle and control circuit module, and igniter axle and control circuit module are contained in the igniter shell.The spindle nose of igniter axle is exposed at housing exterior, can link to each other with bent axle and rotation synchronously, and bent axle rotates two circles, and the igniter axle rotates a circle, and an igniter axle end in the enclosure has the photoelectric conversion garden to coil, and there is light-passing hole at the edge of photoelectric conversion garden dish; The control circuit module has the high-tension electricity output contact, the high-tension electricity output contact exposes igniter shell, and the pulse signal generation circuit, timing control circuit, high-frequency oscillating circuits, high-tension electricity generation circuit and the eliminator that links to each other with the timing control circuit that are linked in sequence are arranged in the control circuit module.
This petrol engine ignition when mounted, the position of required full aduance in the time of need being contained in the petrol engine maximum speed, when being lower than maximum speed, the time-delay of available ignition timing control circuit realizes ignition timing, time-delay weak point when rotating speed is high, rotating speed hangs down the time delay duration.
Pulse signal generation circuit is identical with the pulse signal generation circuit of common photoelectric conversion contactless automobile electronic distributer.Pulse signal generation circuit has optoelectronic multiplex switch, the edge of the photoelectric conversion garden dish on the igniter axle is between the luminotron tube and receiving tube of optoelectronic multiplex switch, when bent axle drives the rotation of igniter axle, because of there is light-passing hole at the edge of photoelectric conversion garden dish, so pulse signal generation circuit can send the undershoot (to call pulse A in the following text) with the gasoline engine crank synchronization.
The timing control circuit is connected to form by former and later two monostable flipflop circuit that the centre is connected with capacitor.Monostable flipflop before pulse A triggers, if can be with the time-delay of the RC circuit of gasoline engine crank rotation speed change RC constant through one, then exportable pulsewidth is with the positive square-wave pulse signal of gasoline engine crank rotation speed change, when speed of crankshaft is high, pulsewidth is little, when speed of crankshaft hangs down, pulsewidth big (to call pulse B in the following text).Pulse B is a synchronization with the initial of each corresponding pulse of pulse A, and the end of each pulse of pulse B is that the trailing edge of pulse B can be timing constantly, the speed of crankshaft height, the pulsewidth of pulse B is little, and then time-delay is short, and speed of crankshaft is low, the pulsewidth of pulse B is big, and then time-delay is long.Pulse B can be created in the rising edge of pulse B and pulse signal (to call pulse C in the following text) that trailing edge is positive and negative sharp pulse respectively behind the capacitor differential.With the negative sharp pulse of pulse C is monostable flipflop after the timing time trigger, through after the RC circuit delay of monostable flipflop, the positive square-wave pulse signal (to call pulsed D in the following text) that output pulse width equates.The initial of the positive square-wave pulse of pulsed D promptly is the timing moment.Because each pulsewidth of pulse B changes with speed of crankshaft, thus the dutycycle of pulsed D just with the rotation speed change of gasoline engine crank, speed of crankshaft is big, the dutycycle of pulsed D is big, speed of crankshaft is little, the dutycycle of pulsed D is little.Pulsed D can be used for the correct timed ignition control of petrol engine.
Pulsed D is divided into two-way output, and one the tunnel removes eliminator, and high-frequency oscillating circuits is removed on another road.
Eliminator is connected to form by choke coil and capacitor.Pulsed D is behind eliminator, the direct current servo-actuated voltage that the size of exportable voltage changes synchronously with speed of crankshaft, speed of crankshaft is big, servo-actuated voltage height, speed of crankshaft is little, servo-actuated voltage is low, this servo-actuated voltage is added on the light emitting diode, the light intensity that diode sends will be with the rotation speed change of bent axle, fix a photoresistor on the light emitting diode side, form the RC delay circuit with this photoresistor and capacitor, then its RC constant will be with the rotation speed change of bent axle, with this RC delay circuit as monostable flipflop before in the above-mentioned timing control circuit required can be with the RC delay circuit of gasoline engine crank rotation speed change RC constant the time, just can make preceding monostable flipflop export foregoing pulsewidth is pulse B with the positive square-wave pulse signal of gasoline engine crank rotation speed change.
High-frequency oscillating circuits is to produce the electronics high-frequency oscillating circuits that frequency is the high frequency oscillation of 39~41khz.Another road input high-frequency oscillating circuits of pulsed D makes pulsed D when high petential, and exportable high frequency oscillation, pulsed D vibrate when low potential and stop, and promptly pulsed D is through high-frequency oscillating circuits, the high-frequency pulse signal at exportable intermittence (to call pulse E in the following text).Pulse E essence is to originate in the timing pulse signal that fixed qty high-frequency impulse ripple is arranged constantly.
The high-tension electricity generative circuit has pulse transformer.Pulse E can boost through the pulse transformer immediately by behind the primary air of pulse transformer, at secondary winding output and the synchronous high-voltage pulse current (to call pulse F in the following text) of pulse E.High-voltage pulse current pulse F is delivered to the spark plug of petrol engine, be used for correct timed ignition, each igniting all is one group of many spark of high energy.
The utility model has the advantages that:
1. owing to use the timing of electronic circuit control ignition, do not have mechanical wear, the long-term use can guarantee that still timing is accurate,
2. it is contactless that high pressure divides electricity, and igniter is done reliable mutually,
3. pulse transformer is only done mutually in the ignition point energising, thereby power saving, be difficult for burning,
4. the induction of pulse transformer is exceedingly fast, and no matter the rotating speed of petrol engine height all can guarantee enough ignition energies,
5. each igniting has many sparks, guarantees that igniting is reliable.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the product schematic representation of double-cylinder gasoline engine igniter,
Fig. 2 is the electrical schematic diagram of double-cylinder gasoline engine igniter control circuit module,
Fig. 3 be among Fig. 2 when petrol engine rotational speed increases gradually the pulse shape schematic representation of A, B, C, D, E, F each point.
Among Fig. 1, the double-cylinder gasoline engine igniter has igniter axle 1 and control circuit module 2, igniter axle 1 and control circuit module 2 are installed in the igniter shell 3, high pressure output contact 201,202 on the control circuit module 2 is exposed on the shell 3, the spindle nose 11 of igniter axle 1 exposes outside the igniter shell 3, and spindle nose 11 can link to each other with gasoline engine crank, and drives rotation synchronously by bent axle, bent axle takes two turns, and igniter axle 1 turns around.
Igniter axle 1 is fixed a photoelectric conversion garden dish 12 at an end of shell 3 inside, when igniter axle 1 rotates, can rotate by drive garden dish 12, and there are the two ends of 121, two light-passing holes 121 of two light-passing holes at a diameter of garden dish 12 at the edge of garden dish 12.
Among Fig. 2, the control circuit module 2 of igniter is made up of the power supply circuits 26 of the pulse signal generation circuit 21 that is linked in sequence, timing control circuit 22, high-frequency oscillating circuits 23, high-tension electricity generation circuit 24 and the eliminator 25 that links to each other with the timing control circuit and pulse signal generation circuit 21, timing control circuit 22 and eliminator 25.
Among Fig. 2, Fig. 3, the transistor T 1 that pulse signal generation circuit 21 has light-operated switch GK and is attached thereto.12 edges are coiled between the luminotron tube and receiving tube of light-operated switch GK in garden on the igniter axle 1, when gasoline engine crank drive igniter axle 1 and on garden dish 12 when rotating, because there are two light-passing holes at the edge of garden dish 12, so light-operated switch GK is exportable and the pulse signal of gasoline engine crank synchronization, igniter axle 1 whenever turns around, can send two pulses, exporting undershoot at the A point after transistor T 1 amplifies is pulse A.
High-frequency oscillating circuits 23 is the 555 time base circuit IC that are connected into the high frequency oscillator circuit
2Also have by resistance R in the high-frequency oscillating circuits 23
12, resistance R
13With capacitor C
13The RC circuit of forming, this RC circuit can determine the output oscillation frequency of high-frequency oscillating circuits 23, selects R
12, R
13And C
13Value make high frequency oscillator circuit 23 can produce 39~41KHZ, the high frequency oscillation of 40KHZ preferably.Timing control circuit 22 output through T
2The pulsed D that amplifies triggers IC
24 pin, when 4 pin are high petential at IC
2The exportable high frequency oscillation of 3 pin, when 4 pin were low potential, vibration stopped, promptly by T
2Pulsed D after the amplification triggers IC
24 pin after, at IC
2The exportable pulse signal pulse E with the synchronous intermittent oscillation of pulsed D of 3 pin, through triode T
3Amplify, send into high-tension electricity generation circuit 24.
High-tension electricity generation circuit 24 has pulse transformer B
1Pulse E is from pulse transformer B
1Primary air input, pulse transformer B
1Secondary winding exportable with the synchronous high-voltage pulse current of pulse E be pulse F, pulse transformer B
1The two ends of secondary winding, by the high pressure output contact on the control circuit module, can be respectively link to each other with the spark plug of each cylinder of double-cylinder gasoline engine.Pulse F is used for the correct timed ignition of petrol engine.
The model or the parameter of the main electronic parts and components among Fig. 2 in the control circuit module of double-cylinder gasoline engine are:
Light-operated switch GK:MOC70T, triode T
1, T
2, T
4: 9013, dual time base circuit IC
1-1And IC
1-2: 556, resistance R
4: 2.7M~3.3M, photoresistor cds:MG45, light emitting diode D
6: 2EF, capacitor C
1, C
4: 103, capacitor C
2, C
13: 104, resistance R
7: 330K, time base circuit IC
2: 555, resistance R
12: 30~40K, resistance R
13: 10K, triode T
3: BU932, pulse transformer B
1Be the ferrite core pulse transformer of frequency 40KHZ, the number of turn of its primary air is that the number of turn of 25~30 circles, secondary winding is 3000~4000 circles, choke coil L:48mH, electrolytic condenser C
9: 100~220 μ, three terminal regulator IC
3: 7808.
A light-operated switch and a control circuit module only can be used for double-cylinder gasoline engine.Can add an igniter control circuit module again and outside the edge of photoelectric conversion garden dish 12, add a light-operated switch again for the four-cylinder gasoline machine, by that analogy for petrol engine such as six cylinders, eight cylinders.
Claims (6)
1. petrol engine ignition is characterized in that: shell arranged, has the high pressure output contact to expose the control circuit module of shell and the igniter axle that spindle nose also exposes shell in the shell,
(1) an igniter axle end in the enclosure is fixed with photoelectric conversion garden dish, and there is light-passing hole at the edge of photoelectric conversion garden dish,
(2) pulse signal generation circuit of sending of being linked in sequence and petrol engine rotational speed synchronization pulse is arranged in the control circuit module, above-mentioned pulse signal is made the timing control circuit of the positive square-wave pulse signal of output after the delay process, the high-frequency oscillating circuits of output high frequency oscillation when above-mentioned positive square-wave pulse signal is high petential, the eliminator of the direct current servo-actuated voltage that the exportable and petrol engine rotational speed that the high-tension electricity generation circuit of above-mentioned high frequency oscillation boosted voltage and input end are connected with timing control circuit output terminal is synchronous.
2. by the described igniter of claim 1, it is characterized in that: described pulse signal generation circuit has light-operated switch and the triode that is linked in sequence, and the edge of the photoelectric conversion garden dish on the igniter axle is arranged between the luminotron tube of light-operated switch and the receiving tube.
3. by the described igniter of claim 2, it is characterized in that: former and later two monostable flipflop circuit that are connected with capacitor in the middle of described timing control circuit has, in the RC delay circuit of preceding monostable flipflop circuit photoresistor is arranged, photoresistor is other to have two ends to be added with light emitting diode above-mentioned and the direct current servo-actuated voltage that petrol engine rotational speed is synchronous.
4. by the described igniter of claim 3, it is characterized in that: described eliminator has triode, choke coil, the electrolytic condenser that is linked in sequence, and the input end of eliminator is connected with the output terminal of timing control circuit, the output terminal of eliminator is connected with light emitting diode in the timing control circuit.
5. by the described igniter of claim 4, it is characterized in that: it is can produce 39~41KHZ when input end is high petential that described high frequency swings circuit, particularly 555 time base circuits that are connected into high-frequency oscillating circuits that vibration stops when 40KHZ high frequency oscillation, low potential.
6. by the described igniter of claim 5, it is characterized in that: described high-tension electricity generation circuit has pulse transformer, and the pulse transformer secondary winding links to each other with high pressure output contact on the control circuit module.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 95232386 CN2236552Y (en) | 1995-10-05 | 1995-10-05 | Electronic igniter for gasoline engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 95232386 CN2236552Y (en) | 1995-10-05 | 1995-10-05 | Electronic igniter for gasoline engine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2236552Y true CN2236552Y (en) | 1996-10-02 |
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ID=33876768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 95232386 Expired - Fee Related CN2236552Y (en) | 1995-10-05 | 1995-10-05 | Electronic igniter for gasoline engine |
Country Status (1)
Country | Link |
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CN (1) | CN2236552Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105317614A (en) * | 2015-12-04 | 2016-02-10 | 哈尔滨幻石科技发展有限公司 | Interference-pattern-based optical ignition device applied to new energy automobiles |
CN105545565A (en) * | 2015-12-04 | 2016-05-04 | 哈尔滨幻石科技发展有限公司 | New energy automobile optical ignition device based on interferential principle |
-
1995
- 1995-10-05 CN CN 95232386 patent/CN2236552Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105317614A (en) * | 2015-12-04 | 2016-02-10 | 哈尔滨幻石科技发展有限公司 | Interference-pattern-based optical ignition device applied to new energy automobiles |
CN105545565A (en) * | 2015-12-04 | 2016-05-04 | 哈尔滨幻石科技发展有限公司 | New energy automobile optical ignition device based on interferential principle |
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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 |