CN2292910Y - Electronic pulse spark ignitor for automobile - Google Patents
Electronic pulse spark ignitor for automobile Download PDFInfo
- Publication number
- CN2292910Y CN2292910Y CN 96224071 CN96224071U CN2292910Y CN 2292910 Y CN2292910 Y CN 2292910Y CN 96224071 CN96224071 CN 96224071 CN 96224071 U CN96224071 U CN 96224071U CN 2292910 Y CN2292910 Y CN 2292910Y
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- Prior art keywords
- pin
- circuit
- distributor
- transistor
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to an electronic pulse spark ignitor for an automobile, comprising an electric source 1, an ignition coil 2, a distributor 3 and a sparking plug 4. The input end of an oscillating circuit 5 is connected with the electric source 1, and the output end is connected with a transistor switch circuit 6. One end of the ignition coil 2 is connected with the positive electrode of the electric source 1. One path of the b end of the ignition coil 2 is connected with the output of the switch circuit, and one path is grounded by the distributor 3. The oscillating circuit 5 is a base integrated circuit with M-NE 555, and the transistor switch circuit has no contact. The utility model has the advantages of fast switching speed, long service life, reliable work, low cost and high ignition energy.
Description
The utility model is relevant with the car accumulator ignition mechanism.
Existing automobile electromagnetic vibration ignition mechanism, by power supply, spark coil, distributor and spark plug are formed.The coils from parallel connection of coils of hertz oscilltor is elementary in spark coil.The contact of electromagnetic oscillations coil connects power cathode by the contact.The contact is made up of fixed contact and movable contact.When connecting power supply, electric current the flow through elementary winding of spark coil and the coil of hertz oscilltor, their electric current all increases rapidly, produces magnetic flux in the iron core energy storage.When disconnecting under the effect of contact breaker points at distributor cam, the rapid dyingout of the magnetic flux of spark coil, secondary induction at spark coil goes out high-tension electricity and connects certain firing order to make spark plug sparking, when the coil electricity of hertz oscilltor, owing to producing magnetic force, its iron core the contact is disconnected the contact spring suction, the shunt circuit is cut off, magnetic force disappears, rely on the elastic force of contact spring arm to make make contact again, circuit is switched on again, vibration so repeatedly, ignition energy is bigger, can produce continuous many sparks.But because hertz oscilltor adopts contact switch, switching speed can not be very fast, and the wearing and tearing of contact are bigger, and working life is not long, job insecurity.The complex structure of existing electromagnetic oscillations ignition mechanism, the manufacture cost height, volume is bigger.
The purpose of this utility model provides a kind of simple in structure, and volume is little, and the low life-span of cost is long, in a short period of time, can continuously produce pulsed high-voltage, the automotive electronics pulse mulitple ignition device that ignition energy is high.
The utility model is achieved in that
The utility model comprises power supply 1, spark coil 2, distributor 3 and spark plug 4.The input termination power 1 of vibrator circuit 5, output termination transistor switching circuit 6, a termination power 1 positive pole of spark coil 2, b are held one tunnel output that connects switching circuit 6, lead up to distributor 3 ground connection.
Said vibrator circuit is 555 time-base integrated circuits, and said transistor switching circuit 6 connects the output of 555 time-base integrated circuits by the base stage of transistor T by resistance R 4, the grounded-emitter connection of T, and collector electrode is by the b end of resistance R 5 contact fire coils 2.
555 time-base integrated circuits of the present utility model are M-NE555 or IC555 or FX555 or LC555 or SC555, and 4,8 pin of M-NE555 integrated package are leaded up to divider resistance R1 and are connected to a end of spark coil 2, lead up to resistance R 2, R3, capacitor C 1 ground connection, 6 of M-NE555,7 pin are connected to the two ends of R3,2 pin are connected to R3, between the C1, and 1 pin ground connection, 3 pin are connected to the base stage of T by R4, and 5 pin are by capacitor C 2 ground connection.
The utility model is being connected circuit, and when distributor breaker point K was closed, the flow through elementary winding of spark coil of electric current produced magnetic flux in the iron core energy storage; When contact breaker points K disconnected under the effect of the cam G of distributor 3, the magnetic flux of spark coil rapidly disappeared, and induced high-tension electricity and made spark plug sparking by certain ignition order at secondary windings.The spark coil primary current is from the vibrator circuit 5 of a point through resistance R 1 input electronic pulse mulitple ignition device simultaneously, the oscillating current of 300Hz～500Hz frequency flows into the base stage of transistor T through resistance R 4 from 3 pin, transistor is in following time of control of input pulse signal and saturated, the time and end, when being equivalent to switch and connect, the time and disconnect.When the input positive pulse, transistor is saturated, is equivalent to the switch of a connection, and when negative impulse of input, transistor ends, and is equivalent to the switch of a disconnection.Thereby make the collector electrode of T and emitter also with the frequency through and off of 300Hz～500Hz, the break-make of spark coil primary current is subjected to strict control, therefore, the secondary disconnection to the moment of a certain cylinder igniting at contact breaker points K of spark coil constantly produces pulsed high-voltage continuously, between the gap of spark plug, produce many sparks effect, ignition energy is improved greatly.
The utility model utilization electronic integrated circuit, transistor contactless switch, switching speed is exceedingly fast, working stability, long service life, easy to manufacture.And can not change the basic structure of former ignition system, only this igniter is attached on the former spark coil and gets final product.The utility model ignition area is big, and the energy height has continued firing time, makes engine power performance, and indexs such as acceleration performance, fuel-economizing, toxic emission are comprehensively improved.The utility model is simple in structure, and volume is little, and is with low cost.
Following is accompanying drawing of the present utility model.
Fig. 1 is a block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
The following is embodiment of the present utility model.
The utility model constitutes vibrator circuit by intergrated circuit M-NE555 and peripheral cell R1, R2, R3, C1, C2, transistor T-3DD171 and peripheral cell R4, R5, C3 constitute pulse-switching circuit, form electronic impulse mulitple ignition device with storage battery 1, spark coil 2, distributor 3, spark plug 4.Transistor T also can be 3DD172,3DD167,3DD169,3DD175,3DD176,3DD12-T.The split fire head 7 of breaker cam and distributor is contained on the same axle, and contact breaker points K can disconnect under the effect of cam G.The utility model is parallel to elementary a, b 2 points of spark coil 2, the grounded-emitter connection of transistor (battery terminal negative).Capacitor C 3 is in parallel with collector electrode, the emitter of transistor.
The function of capacitor C 3 is that the protection transistor is not damaged by due to voltage spikes.
The main effect of R1 is the dividing potential drop choked flow, and this vibrator circuit is worked under suitable voltage, electric current, makes the unlikely heating of each electronic component and causes abnormal working position even be damaged.
R2, R3 and C1, C2 and intergrated circuit M-NE555 form the stable multi-oscillation circuit, and the oscillating current that can assist out 300Hz～500Hz frequency is as the base signal that drives the High-power Semiconductor Triode break-make.
R5 mainly plays the ballast effect, can keep constant electric current, and transistor is not damaged because of the excessive heating of electric current.
The utility model is the desirable update product of present ignition system applicable to the petrol engine of electronics contactless ignition system.
Claims (3)
1, a kind of automotive electronics pulse mulitple ignition device, comprise power supply (1), spark coil (2), distributor (3) and spark plug (4), the input termination power (1) that it is characterized in that vibrator circuit (5), output termination transistor switching circuit (6), a termination power (1) positive pole of spark coil (2), b holds one tunnel output that connects switching circuit (6), leads up to distributor (3) ground connection.
2, automotive electronics pulse mulitple ignition device according to claim 1, it is characterized in that said vibrator circuit (5) is 555 time-base integrated circuits, said transistor switching circuit (6) is connect the output of 555 time-base integrated circuits by resistance R 4 by the base stage of transistor T, the grounded-emitter connection of T, collector electrode is by the b end of resistance R 5 contact fire coils (2).
3, automotive electronics pulse mulitple ignition device according to claim 1 is characterized in that said 555 time-base integrated circuits are M-NE555 or IC555 or FX555 or LC555 or SC555,4 of M-NE555 integrated package, 8 pin are leaded up to divider resistance R1 and are connected to a end of spark coil (2), lead up to resistance R 2, R3, capacitor C 1 ground connection, 6,7 pin of M-NE555 are connected to the two ends of R3, and 2 pin are connected to R3, between the C1,1 pin ground connection, 3 pin are connected to the base stage of T by R4, and 5 pin are by capacitor C 2 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96224071 CN2292910Y (en) | 1996-11-21 | 1996-11-21 | Electronic pulse spark ignitor for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96224071 CN2292910Y (en) | 1996-11-21 | 1996-11-21 | Electronic pulse spark ignitor for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2292910Y true CN2292910Y (en) | 1998-09-30 |
Family
ID=33903139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96224071 Expired - Fee Related CN2292910Y (en) | 1996-11-21 | 1996-11-21 | Electronic pulse spark ignitor for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2292910Y (en) |
-
1996
- 1996-11-21 CN CN 96224071 patent/CN2292910Y/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 |