CN87204261U - Electronic firing device - Google Patents

Abstract

The utility model relates to a firing device of a gas engine, belonging to the series of the electronic ignition. The utility model is mainly characterized in that an electric firing device is designed on the vehicle. The electric firing device is suitable for the platinum ignition and an electronic ignition system. The integral elements comprise a plurality of transistors, resistances, capacitances and switches which are connected according to a circuit diagram. So as gasoline engines can totally use the electronic firing device and can not disassemble or changes the original firing device. The defect of platinum contacts easy ablated is overcome. The power performance of the gasoline engine can be enhanced and the oil consumption rate can be decreased. In case the firing device has the failure, the vehicle does not need to be stopped, and only converts a switch to drive unceasingly. The utility model has the economic benefits of saving time, energy and platinum.

Description

Electronic firing device

A kind of petrolic ignition mechanism belongs to vehicle gasoline igniting system.

Traditional ignition device of gasoline engine is the primary current by the direct break-make spark coil in platinum contact, producing the secondary high pressure spark, and carries out the gasoline igniting.The electric current of make-and-break of this platinum contact is big, cause that the spark coil secondary high pressure descends, and is easy to stop working when high engine speeds is moved.In addition, ablate and also to need often maintenance, change for touching spark between fire, not only expend platinum but also increase oil consumption, it is insufficient and produce a large amount of harmful gaseous contamination environment also to cause ignition voltage to reduce gasoline combustion.For overcoming above-mentioned shortcoming, also existing both at home and abroad various ignition device, a kind ofly be contact control type such as transistor type, condenser type, another kind is contactless control type such as magnetic induction type, photoelectric etc., though the direction that can be Future Development that wherein has, remain at present cost an arm and a leg, complex circuit, some performance be still waiting perfect.

The utility model still can use the platinum point ignition system on original petrol engine, but can overcome the shortcoming of above-mentioned platinum contact.There is not the ablation problem between the contact, improves power, fuel-economizing, energy-conservation, the purpose of saving platinum so that still can reach with platinum yet.

External wiring diagram of the present utility model (seeing accompanying drawing 2) is made of cage assembly (19) and tie (15), (16), (17), (18).The switching circuit of internal wiring installation diagram (seeing accompanying drawing 1) is to be that several triodes connect with resistance, electric capacity, switch etc. and install and become this electronic ignition device by the two-stage compound transistor, wherein triode amplifies the base stage that drives high-power switch tube with trigger current, makes it saturation conduction; Throw over switch is tie point fire tube collector terminal and prime base terminal, with control electronic ignition and mechanical type igniting.Because transformer's primary current is the platinum contact by distributor no longer, but by this ignition, thus the platinum contact point of platinum contact can also other metals such as silver etc. substitute.

The utility model embodiment presses internal wiring installation diagram (accompanying drawing one), purchases two on DD03 triode earlier; Two of 3D * 204B triode; One of 2CZ84B diode; One of 4700PF/400V electric capacity; One of 330 Ω/2W resistance; One of 560 Ω/2W resistance; One of one of 470 Ω/0.5W resistance and 250V/5A two gear switch are assembled then, get final product this electronic ignition device.By external wiring diagram (seeing accompanying drawing two), its (15) line connects automobile transformer positive terminal; (16) line connects automobile transformer anode connector, and former transformer anode connector to the low voltage line of distributor platinum joint is removed not.(17) line connects platinum joint on the distributor, (18) line ground connection (being power cathode).

The utility model can both be extensive use of on the general vehicle petrol engine, breaks down if meet igniter, as long as change-over switch can continue to travel. Owing to can overcome the platinum contact existing shortcoming of lighting a fire, also platinum can be replaced with other metals, not only save platinum but also save maintenance man-hours, can also improve the engine load force, reduce rate of fuel consumption, obtain economic benefit energy-conservation, saving platinum.

Description of drawings:

Figure: internal wiring installation diagram

Triode: (1) (2) (3) (4);

Diode: (5);

Resistance: (6) (7) (8);

Electric capacity: (9);

Throw over switch: (10);

Platinum contact: (11);

Storage battery: (12);

Transformer: (14);

Ignition switch: (13)

Figure: external wiring diagram

Transformer electrode line (being power line): (15);

Transformer negative line: (16);

Distributor platinum joint wiring: (17);

Ground wire: (18);

Cage assembly: (19).

Claims (3)

1, a kind of ignition mechanism of petrol engine, its technical characteristics is that it is made up of two group transistors, one group is prime composite pipe (1), (2), this pipe base stage links to each other with distributor platinum contact line with electricity group (6) negative pole, this pipe collector links to each other with the positive pole of resistance (7) negative pole and diode (5) wherein that the positive terminal of resistance (6) and resistance (7) links to each other with transformer (14) is anodal again, grounded-emitter connection again, another group is a back level composite pipe (3), (4), this pipe base stage links to each other wherein, and the emitter of the triode of composite pipe (4) base stage and triode (3) links to each other and the other end ground connection of resistance (8) with resistance (8) with the negative pole of diode, this pipe collector links to each other with transformer (14) negative pole with electric capacity (9) again, and emitter links to each other with the electric capacity negative terminal and ground connection again.

2, electronic ignition device according to claim 1, its technical characterstic are to connect the collector terminal of switching tube (4) and the base terminal of transistor (1), select the throw over switch (10) of electronic ignition or mechanical type igniting for use with control.

3, electronic ignition device according to claim 1, its technical characteristics is contact, its contact is a silver alloy.

Images