CN2349372Y - High-efficient low-temp. electronic igniter - Google Patents

Abstract

The utility model relates to a high-efficient low-temp. electronic igniter. A strong more-spark time-base circuit is composed of IC, R1, R2, R3, C1, T1, F, etc., and a high-efficient ignition circuit is composed of T2, T3, R4, R5, C2, etc. The utility model has the advantages of simple structure, stable performance and no condenser for an original car, and a contact is never ablated. Compared with the original igniting intensity, the igniting intensity can be increased by about 1.2 times. Spark power is stronger when a plurality of sparks are started, the starting performance of an engine is increased at a cold day, and the labor intensity of a driver is reduced.

Description

Efficient cold day ignition

The utility model relates to a kind of electronic ignition device, and the efficient cold day ignition of many sparks can be provided during in particular for automobile starting.

At present, the igniting branch on the automobile has contact and contactless two types, six kinds of igniting forms, and they all are when motor is in expansion space stroke, produce an electrical spark by spark plug and light a fire.But when cold snap or sooting of the spark plug were too much, this electrical spark just was difficult to mixed gas is lighted, and causes the engine start difficulty, the waste fuel oil.

The purpose of this utility model provides a kind of efficient cold day ignition, it can not only be later with single spark ignition at engine start, and can provide a lot of strong electrical spark when starting, and mixed gas is lighted easily, save fuel oil, improve the startability of motor.

The purpose of this utility model is achieved in that forms transistor switching circuit by R4, R5, T2, T3, C2 in the circuit of an ignition.Working principle is: open ignition switch, and when contact breaker points K is closed, T2, T3 conducting, the primary air of B has electric current to flow through, and produces magnetic field; When contact breaker points K opened, T2, T3 ended, and induced a high-tension electricity in the secondary winding of B, produced a spark ignition through spark plug.This principle makes engine start or starts later on all is single spark ignition.Add operating voltage base drive circuit when taking from ignition switch and " starting shelves " at the end of transistor switching circuit R4 to many sparks of the line of the moving switch of starter motor magnetic/connect post, its operating voltage only could be connected when the switch activated motor of rotation igniting, and is synchronous with the operating time of starter motor.To be one be the square-wave oscillator of core with the IC to the time base section of base drive circuit during many sparks, oscillation frequency depends on the size of R1, R2, C1, design R1=R2 in the circuit, frequency f=0.722/R1C1, the model of IC is NE555, its function depends on the working method of circuit, and this circuit adopts indirect feedback-type not have steady working method, and its function is the output square wave.Certainly, this square-wave oscillator also can replace with the other electron component combination.At the output terminal of square-wave oscillator, form electronic driver by resistance R 3, triode T, solid-state relay F, electric current only has several milliamperes during T1 conducting in the electronic driver, can select NPN type small power switch pipe for use; 1,4 pin of F are two ends of inner a pair of normally opened contact, can change connection, and 2,3 pin are two ends of an inner 12V coil, also can change connection; F mainly plays and connects synchronously, disconnects effect completely, also can replace with other electron component.The working principle of base drive circuit is during many sparks: open the ignition switch ato unit, square-wave oscillator gets electric work, and the coil in the F gets the electric inner contact closure that makes, and connects the circuit between T1 collector electrode and the contact breaker points K.When K is closed, the collector electrode bonding ground connection of the end of R4 and T1, current potential is 0, T2, T3 conducting, the primary air of spark coil B has electric current to flow through, and produces magnetic field; When the camshaft rotation is opened contact breaker points K, the current potential of R4 and T1 collector electrode rises, T2, T3 ends, magnetic field among the spark coil B rapidly disappears, in secondary windings, induce first high-tension electricity and pass through plug ignition, make ignition timing, and then by a succession of square wave of IC the 3rd pin output through R3 make T1 according to the square wave frequency conducting with end, and pass through F, R4 drives T2, the T3 conducting with end, induce a series of high-tension electricity in spark coil B secondary windings, the place forms continuous strong spark in the spark plug gap, all has spark to exist like this in whole expansion space stroke, mixed gas is easy to light, and reaches the purpose that improves the engine start performance.When engine start goes back to ignition switch later on, base drive circuit power supply is cut off during many sparks, and open the contact in the F, and motor still is single spark ignition.Entire circuit is installed in the same container, draws 5 leads and is connected with corresponding part on the automobile, realizes its function.Adopt electronic component in the circuit, volume is little, and is simple in structure, and low price is implemented easily.

Owing to adopt such scheme, when ato unit, can provide continuous mulitple ignition, mixed gas is lighted easily, and burning is fully, saves oil plant, reduces environmental pollution, has improved the startability of motor, and is especially more obvious at arctic weather.

The utility model is described in further detail below in conjunction with drawings and Examples.

Accompanying drawing is circuit theory diagrams of the present utility model.

Among the figure: IC is intergrated circuit NE555,1 pin GND, 2 pin S, 3 pin Q, 4 pin MR, 5 pin VC, 6 pin R, 7 pin Q, 8 pin VCC, R1, R2, R3, R4, R5 are resistance, C1, C2 are electric capacity, and T1, T3 are NPN type triodes, and T2 is the positive-negative-positive triode, F is a solid-state relay, B is a spark coil, and K is a contact breaker points, and SK is an ignition switch " start shelves " to the line of the moving switch of starter motor magnetic/connect post.

In the accompanying drawing illustrated embodiment, 4 of IC, the end of 8 pin and R1,2 pin of F also meet SK, the end of the other end of R1 and R2, the anode of D also connects 7 pin of IC, the end of the other end of R2 and C1, the negative electrode of D also meets 2 of IC, 6 pin, the 1 pin bonding ground connection of the other end of C1 and IC, the 3 pin series connection R3 of IC connects the base stage of T1, the emitter bonding ground connection of T1, the collector electrode of T1 connects 1 pin of F, the 3 pin bonding ground connection of F, 4 pin of F and the end of R4 also meet contact breaker points K, the base stage of another termination T2 of R4, the end of the emitter series connection R5 tie point fire coil B of T2, the collector electrode of T2 connects the base stage of T3, the other end of the collector electrode tie point fire coil B of T3, the emitter bonding ground connection of T3 is between the collector electrode of T3 and emitter and connect a capacitor C 2.

Claims (5)

1, a kind of efficient cold day ignition, it comprises the transistor switching circuit of being made up of resistance, electric capacity, triode, it is characterized in that:, add operating voltage base drive circuit when taking from ignition switch " start shelves " to many sparks of the line of the moving switch of starter motor magnetic/connect post at an end of transistor switching circuit resistance R 4.

2, efficient cold day ignition according to claim 1 is characterized in that: to be one be the square-wave oscillator of core with the IC to the time base section of base drive circuit during described many sparks.

3, efficient cold day ignition according to claim 2 is characterized in that: the output terminal of described square-wave oscillator is an electronic driver of being made up of resistance R 3, triode T1, solid-state relay F.

4, efficient cold day ignition according to claim 3, the base feature is: the T1 in the described electronic driver is the NPN type triode of a grounded-emitter connection, F is that an inside has a pair of normally opened contact and the solid-state relay of a coil is arranged, its 1 and 4 pin, 2 can change with 3 pin and to be connected.

5, efficient cold day ignition according to claim 2, it is characterized in that: 4 of IC, the end of 8 pin and R1,2 pin of F also meet SK, the end of the other end of R1 and R2, the anode of D also connects 7 pin of IC, the end of the other end of R2 and C1, the negative electrode of D also meets 2 of IC, 6 pin, the 1 pin bonding ground connection of the other end of C1 and IC, the 3 pin series connection R3 of IC connects the base stage of T1, the emitter bonding ground connection of T1, the collector electrode of T1 connects 1 pin of F, the 3 pin bonding ground connection of F, 4 pin of F and the end of R4 also meet contact breaker points K, the base stage of another termination T2 of R4, the end of the emitter series connection R5 tie point fire coil B of T2, the collector electrode of T2 connects the base stage of T3, the other end of the collector electrode tie point fire coil B of T3, the emitter bonding ground connection of T3.

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