CN2189652Y

CN2189652Y - Electronic ignitor of gasoline engine

Info

Publication number: CN2189652Y
Application number: CN 94210056
Authority: CN
Inventors: 计策
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-27
Filing date: 1994-04-27
Publication date: 1995-02-15
Anticipated expiration: 2004-04-27

Abstract

The utility model relates to an electronic igniter of a gasoline engine, which is composed of a bistable circuit (2), a control circuit of an ignition coil (3), signal coils L < 1 >, L< 2 >, an ignition transformer B and an induction magnet (4). the angle of the ignition can be changed according to the load variation of the gasoline engine and the ignition angle and the operating condition of the gasoline engine can be kept in an optimum matching condition; so the utility model can improve loading capacity of the gasoline engine and reduce oil consumption. Having the advantages of simple structure, low cost and convenient installation, the utility model can be used for various gasoline engines.

Description

Electronic ignitor of gasoline engine

The utility model relates to a kind of petrol engine ignition.

At present, its firing angle of traditional gasoline engine igniter can not change with petrolic load variations, so just can not bring into play petrolic load carrying capacity fully, but also consumes the gasoline that a part should not consume.

The purpose of this utility model is to provide a kind of petrol engine ignition that can change firing angle with petrolic load variations.

The utility model is to constitute like this: it is by bistable circuit (2), spark coil control circuit (3), signal coil L1, L2, ignition transformer B, induced magnet (4) is formed, two input ends at bistable circuit (2) are connected to a signal coil L1 respectively, L2, the input end of a spark coil control circuit of the output termination of bistable circuit (2) (3), the primary air of the output terminal contact fire transformer B of spark coil control circuit (3), the secondary winding of ignition transformer B connects petrolic spark plug (6), induced magnet (4) is installed on the petrolic flywheel (5), signal coil L1, L2 becomes 180 to be installed in the position of petrol engine near flywheel.Spark coil control circuit (3) is by shell (1), 10 triode G5～G14, controllable silicon SCR, 5 diode D3～D7,13 resistance R 7～R19, potentiometer W, 5 capacitor C 1～C5, and the three-terminal voltage-stabilizing ic chip is formed, resistance R 7, R8, one of R9 terminates at and is the input end of spark coil control circuit (3) together, the base stage of another termination G8 of R7, the base stage of another termination G10 of R8, the base stage of another termination G5 of R9 and the end of C1, the collector electrode of G5 connects the other end and the positive pole of C2 and the base stage of G6 of an end and the C1 of R10, the emitter of G6 connects the base stage of G7, G5, G7～G11, the emitter of G13 and R14, R18, R19, the end of W, the end of the negative pole of C2 and C5 and the grounding end of IC and the anode of D7 all are linked together, this joining end is the negative pole end that connects power supply, the collector electrode of G8 connects the end of R11 and the base stage of G9, the collector electrode of G9 meets positive pole and the R12 of C3, the end of R13 and the emitter of G14, G6, the collector electrode of G7 connects the anode of SCR and an end and the anode of D4 and the positive pole of C4 of R16, the collector electrode of G10 connects the negative electrode of D3, the anode of D3 connects the negative pole of C3, the output termination R12 of IC, another termination R14 of R13 and the base stage of G11, the collector electrode of G14 connects the control utmost point and R15 one end of SCR, the negative electrode of another termination of R15 SCR and the collector electrode of G11, R10, R11, the other end of R16 and R17 one end, the negative electrode of D7, the input utmost point of IC is linked together, this joining end is the positive terminal that connects power supply, secondary coil one end of B also connects this end, the negative electrode of D4 connects the anode of D5, the negative electrode of D5 connects the base stage of negative pole and the G12 of C4, the collector electrode of G12 connects the other end of R17, the emitter of G12 connects the base stage of G13 and the other end of R19, the current collection of G13 very spark coil control circuit (3) output terminal and connect with the negative electrode of D6, the anode of D6 connects the other end of R18, electronic component and bistable circuits (2) all except that W all are contained in shell (1) the inside, and W is installed on the petrolic throttle and throttle links together.When the petrol engine ignition is connected power supply; the G3 conducting; circuit does not have influence during the L1 of induced magnet (4) induction at this moment; bistable circuit (2) upset during induction L2; G3 ends; G5; G8; the G10 conducting; G9 ends; C3 is charged to certain voltage and makes the G11 saturation conduction and trigger SCR; so G12; G13 produces high pressure by B and makes the spark plug discharge; finish once igniting; when induced magnet (4) continuation is responded to L1 once more with the flywheel rotation; bistable circuit (2) upset; G5; G8; G10; G11 ends; the G9 conducting; SCR ends; C3 passes through W simultaneously; the G9 discharge; G12; the G13 conducting; the primary air energising of B; finish with regard to a light-off period like this; if induced magnet (4) stall this moment, G6; G7 is through C2 time-delay conducting after 2 seconds, G12; G13 ends; so just can play protection B and economize on electricity; the effect of fuel-economizing; as long as light-off period is not more than 2 seconds G6; G7 is just inoperative, and the time of discharging and recharging of capacitor C 3 has determined the size of firing angle, and regulates the discharge and recharge time of W with regard to can regulate C3; when petrolic load variations, will change the position of throttle; at this moment W changes with the variation of throttle, thereby has also just changed the size of firing angle, makes firing angle and petrolic working condition keep the best fit state.

Compared with prior art, the utility model can not only change the angle of igniting with petrolic load variations, make firing angle and petrolic working condition keep the best fit state, thereby improve petrolic load carrying capacity, reduce oil consumption, and it is simple in structure, cheap, easy for installation, can be used for polytype petrol engine.

Accompanying drawing 1 is an External view of the present utility model; Accompanying drawing 2 is system of the present utility model control schematic representation; Accompanying drawing 3 is electrical schematic diagrams of the present utility model.

Embodiment of the present utility model: by bistable circuit (2), spark coil control circuit (3), signal coil L1, L2, ignition transformer B, induced magnet (4) is formed, two input ends at bistable circuit (2) are connected to a signal coil L1 respectively, L2, the input end of a spark coil control circuit of the output termination of bistable circuit (2) (3), the primary air of the output terminal contact fire transformer B of spark coil control circuit (3), the secondary winding of ignition transformer B connects petrolic spark plug (6), induced magnet (4) is installed on the petrolic flywheel (5), signal coil L1, L2 becomes 180 to be installed in the position of petrol engine near flywheel.Spark coil control circuit (3) is by shell (1), 10 triode G5～G14, controllable silicon SCR, 5 diode D3～D7,13 resistance R 7～R19, potentiometer W, 5 capacitor C 1～C5, and the three-terminal voltage-stabilizing ic chip is formed, resistance R 7, R8, one of R9 terminates at and is the input end of spark coil control circuit (3) together, the base stage of another termination G8 of R7, the base stage of another termination G10 of R8, the base stage of another termination G5 of R9 and the end of C1, the collector electrode of G5 connects the other end and the positive pole of C2 and the base stage of G6 of an end and the C1 of R10, the emitter of G6 connects the base stage of G7, G5, G7～G11, the emitter of G13 and R14, R18, R19, the end of W, the end of the negative pole of C2 and C5 and the grounding end of IC and the anode of D7 all are linked together, this joining end is the negative pole end that connects power supply, the collector electrode of G8 connects the end of R11 and the base stage of G9, the collector electrode of G9 meets positive pole and the R12 of C3, the end of R13 and the emitter of G14, G6, the collector electrode of G7 connects the anode of SCR and an end and the anode of D4 and the positive pole of C4 of R16, the collector electrode of G10 connects the negative electrode of D3, the anode of D3 connects the negative pole of C3, the output termination R12 of IC, another termination R14 of R13 and the base stage of G11, the collector electrode of G14 connects the control utmost point and R15 one end of SCR, the negative electrode of another termination of R15 SCR and the collector electrode of G11, R10, R11, the other end of R16 and R17 one end, the negative electrode of D7, the input utmost point of IC is linked together, this joining end is the positive terminal that connects power supply, secondary coil one end of B also connects this end, the negative electrode of D4 connects the anode of D5, the negative electrode of D5 connects the base stage of negative pole and the G12 of C4, the collector electrode of G12 connects the other end of R17, the emitter of G12 connects the base stage of G13 and the other end of R19, the current collection of G13 very spark coil control circuit (3) output terminal and connect with the negative electrode of D6, the anode of D6 connects the other end of R18, electronic component and bistable circuits (2) all except that W all are contained in shell (1) the inside, and W is installed on the petrolic throttle and throttle links together.The model of each element or parameter are selected as follows in the present embodiment: resistance R 1～R4, R8, R11, R13 are 2.2k, R10 is 150k, R12 is 300,1/2w, R16 is 510, and R17 is 100,1w, and R5, R6, R7, R9 are 10k, R14, R15, R18 are 1k, R19 is 220, and W is 4.7k, and its power of resistance of not marking power all is 1/8w; Triode G1～G11, G14 model are 9013, and G13 is 3DK4, and G13 is 3DD102D; D1～D7 model is IN4001, and the trigger current of SCR is about 1mA; C1, C5 are 0.01uF, and C2 is 100uF, and C3 is 47uF, and C4 is 10uF.

Claims

1, a kind of petrol engine ignition, it comprises bistable circuit (2), ignition transformer B, induced magnet (4), it is characterized in that: two input ends at bistable circuit (2) are connected to a signal coil L1 respectively, L2, the output terminal of bistable circuit (2) is received the input end of a spark coil control circuit (3), the primary air of the output terminal contact fire transformer B of spark coil control circuit (3), the secondary winding of ignition transformer B connects on the petrolic spark plug (6), induced magnet (4) is installed on the petrolic flywheel (5), signal coil L1, L2 becomes 180 to be installed in the position of petrol engine near flywheel, and the adjusting resistance W of spark coil control circuit (3) is installed on the petrolic throttle (7).

2, according to the described this petrol engine ignition of claim 1, it is characterized in that: spark coil control circuit (3) is by shell (1), 10 triode G5～G14, controllable silicon SCR, 5 diode D3～D7,13 resistance R 7～R19, potentiometer W, 5 capacitor C 1～C5, and the three-terminal voltage-stabilizing ic chip is formed, resistance R 7, R8, one of R9 terminates at and is the input end of spark coil control circuit (3) together, the base stage of another termination G8 of R7, the base stage of another termination G10 of R8, the base stage of another termination G5 of R9 and the end of C1, the collector electrode of G5 connects the other end and the positive pole of C2 and the base stage of G6 of an end and the C1 of R10, the emitter of G6 connects the base stage of G7, G5, G7～G11, the emitter of G13 and R14, R18, R19, the end of W, the end of the negative pole of C2 and C5 and the grounding end of IC and the anode of D7 all are linked together, this joining end is the negative pole end that connects power supply, the collector electrode of G8 connects the end of R11 and the base stage of G9, the collector electrode of G9 meets positive pole and the R12 of C3, the end of R13 and the emitter of G14, G6, the collector electrode of G7 connects the anode of SCR and an end and the anode of D4 and the positive pole of C4 of R16, the collector electrode of G10 connects the negative electrode of D3, the anode of D3 connects the negative pole of C3, the output termination R12 of IC, another termination R14 of R13 and the base stage of G11, the collector electrode of G14 connects the control utmost point and R15 one end of SCR, the negative electrode of another termination of R15 SCR and the collector electrode of G11, R10, R11, the other end of R16 and R17 one end, the negative electrode of D7, the input utmost point of IC is linked together, this joining end is the positive terminal that connects power supply, secondary coil one end of B also connects this end, the negative electrode of D4 connects the anode of D5, the negative electrode of D5 connects the base stage of negative pole and the G12 of C4, the collector electrode of G12 connects the other end of R17, the emitter of G12 connects the base stage of G13 and the other end of R19, the current collection of G13 very spark coil control circuit (3) output terminal and connect with the negative electrode of D6, the anode of D6 connects the other end of R18, and electrical apparatus element and bistable circuits (2) all except that W all are contained in shell (1) the inside.