CN206194523U

CN206194523U - High -energy ignition coil

Info

Publication number: CN206194523U
Application number: CN201621042477.7U
Authority: CN
Inventors: 丁文; 罗立立
Original assignee: Ningbo Still Auto Parts Co Ltd
Current assignee: Ningbo Still Auto Parts Co Ltd
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-05-24
Anticipated expiration: 2026-08-31

Abstract

The utility model relates to a high -energy ignition coil, including low -voltage VCC, NE555 oscillation circuit, triode VT1, VT2 and ignition coil, NE555 oscillation circuit is square wave oscillation circuit, ignition coil has around a primary (1) in same iron core, the 2nd primary (2), secondary coil (12), low -voltage VCC is connected to the one end of a primary (1) and the one end of the 2nd primary (2), the other end of a primary (1) passes through triode VT1, the other end of the 2nd primary (2) passes through triode VT2 and is connected with NE555 oscillation circuit, low -voltage VCC is connected to the one end of secondary coil (12), the high voltage output end is connected to the other end. The utility model discloses an use square wave oscillation circuit to produce continuous alternating current signal, guaranteed that continuous electric current changes, subtracted repeated ignition operation to the number of turns based on having increased primary's individual scalar sum secondary coil makes secondary coil's ignition energy improve greatly.

Description

A kind of high-energy ignition coil

Technical field

The utility model is related to a kind of ignition coil, more particularly to a kind of high-energy ignition coil.

Background technology

In automotive engine ignition system, ignition coil is one kind by providing ignition energy come ignition engine cylinder Interior air and the execution unit of fuel oil mixture.It contains primary coil and secondary coil, primary coil and low tension on car Source connects, and the other end is connected with switching device, and secondary coil one end is connected with primary coil, and the other end connects with high pressure line output terminal Connect, the break-make based on electric current produces electromagnetic induction, so as to low-voltage is become into high voltage.

But during the utility model is realized, inventor has found that prior art at least has problems with：

In engine cold-start, existing ignition coil is limited by fixed turn ratio, it is impossible to when meeting cold start-up The requirement that required ignition energy high is wanted, and due to thoroughly having cut off power supply using circuit breaker, it is impossible to ensure that once igniting just can be thoroughly Success, must again carry out ignition operation, repeat cumbersome, and output energy is relatively low, and spark duration is short, and stability is poor, no Beneficial to the retrofire of engine.

Utility model content

Main purpose of the present utility model is to provide a kind of ignition coil of high-energy.By using square-wave oscillator circuit Continuous alternating message source is produced, circuit breaker is instead of, it is ensured that continuous curent change, subtracted repeated ignition operation, The duration of ignition is extended, while based on the number that increased primary coil and the number of turn of secondary coil so that the point of secondary coil Fiery energy is greatly improved.

To achieve the above objectives, the technical solution adopted in the utility model is：A kind of high-energy ignition coil, including low electricity Pressure VCC, NE555 oscillating circuit, triode VT1, VT2 and ignition coil, it is characterised in that：The NE555 oscillating circuits are side Ripple oscillating circuit, the ignition coil has the first primary coil 1, the second primary coil 2, secondary coil for being around in same iron core 12, one end of one end of first primary coil 1 and the second primary coil 2 connects the low-voltage VCC, and described first is primary The other end of coil 1 passes through the triode VT2 and NE555 by the other end of triode VT1, second primary coil 2 Oscillating circuit is connected, and one end of the secondary coil connects the low-voltage VCC, other end connection high-voltage output end.

Preferably, the primary coil 2 of first primary coil 1 and second is arranged above and below and be wound in the same direction on the iron core, The secondary coil 12 is located at outside the primary coil 2 of first primary coil 1 and second, is wrapped on the iron core.

Preferably, one end of first primary coil 1 is connected with one end of second primary coil 2 by parallel way The low-voltage VCC is met, the other end of first primary coil 1 is connected with the colelctor electrode of the triode VT1, described second The other end of primary coil 2 is connected with the colelctor electrode of the triode VT2, the grounded emitter of described triode VT1, VT2, base The 3rd pin of the NE555 oscillating circuits is extremely connected jointly.

Preferably, the NE555 oscillating circuits are by 8 pin time-base integrated circuit NE555, resistance R1, R2, diode D1 and electricity Hold C1, C2 to constitute, the resistance R1 is connected with the 7th pin and the low-voltage VCC of the 8 pin time-base integrated circuit NE555, After 2nd and the 6th pins in parallel of the 8 pin time-base integrated circuit NE555, it is connected with the 7th pin by resistance R2, while passing through The electric capacity C1 ground connection, the diode D1 is in parallel with the resistance R2 two ends, and the 1st of the 8 pin time-base integrated circuit NE555 the Pin is grounded, and the 5th pin is grounded by the electric capacity C2, and the resistance R1 is equal with resistance R2 resistances.

Preferably, the 3rd pin of the NE555 oscillating circuits passes through resistance with the parallel connected end of described triode VT1, VT2 R3 is connected.

The beneficial effects of the utility model are as follows：The electric current of consecutive variations is produced by using NE555 oscillating circuits so that The duration duration of ignition is long, eliminates repeating for traditional circuit breaker, while increase a primary coil in the same direction, and it is right The number of turn of secondary coil should be increased, energy higher can be produced, so that ignition energy is bigger.

Brief description of the drawings

Fig. 1 is an a kind of structural representation for preferred embodiment of high energy ignition coil of the utility model.

Fig. 2 is the output square wave figure of NE555 oscillating circuits in a kind of high energy ignition coil of the utility model.

Specific embodiment

Hereinafter describe for disclosing the utility model so that those skilled in the art can realize the utility model.Hereinafter retouch Preferred embodiment in stating is only used as citing, it may occur to persons skilled in the art that other obvious modifications.

A kind of high-energy ignition coil, including low-voltage VCC, NE555 oscillating circuit, triode VT1, VT2 and ignition lead Circle, wherein NE555 oscillating circuits are square-wave oscillator circuit, and ignition coil has the first primary coil 1, for being around in same iron core One end of two primary coils 2, secondary coil 12, one end of the first primary coil 1 and the second primary coil 2 connects the low-voltage VCC, the other end of the first primary coil 1 by triode VT1, the second primary coil 2 the other end by triode VT2 with NE555 oscillating circuits are connected, one end connection low-voltage VCC of secondary coil, other end connection high-voltage output end.

Further, the first primary coil 1 and the second primary coil 2 are arranged above and below and be wound in the same direction on the iron core, secondary Level coil 12 is located at outside the first primary coil 1 and the second primary coil 2, is then wound around on iron core.

Further, one end of first primary coil 1 is connected with one end of the second primary coil 2 by parallel way Low-voltage VCC, the other end of the first primary coil 1 is connected with the colelctor electrode of triode VT1, the other end of the second primary coil 2 Colelctor electrode with triode VT2 is connected, and the grounded emitter of triode VT1, VT2, base stage connects NE555 oscillating circuits jointly 3rd pin.

Further, NE555 oscillating circuits are by 8 pin time-base integrated circuit NE555, resistance R1, R2, diode D1 and electric capacity C1, C2 are constituted, and resistance R1 is connected with the 7th pin and low-voltage VCC of 8 pin time-base integrated circuit NE555, and basis set is into electricity during 8 pin After 2nd and the 6th pins in parallel of road NE555, it is connected with the 7th pin by resistance R2, while being grounded by electric capacity C1, diode D1 is in parallel with resistance R2 two ends, and the 1st pin ground connection of 8 pin time-base integrated circuit NE555, the 5th pin is grounded by electric capacity C2, electricity R1 is equal with resistance R2 resistances for resistance, and the 3rd pin of NE555 oscillating circuits passes through resistance R3 with the parallel connected end of triode VT1, VT2 Connection.

After pressing switch, VCC is charged by resistance R1 and R2 to electric capacity C1, the 3rd pin output high level, now two three Pole pipe VT1, VT2 is turned on, and first and second primary coil produces electric current, when the voltage of electric capacity C1 reaches the threshold voltage 2/ of the 6th pin During 3VCC, electric capacity C1 is discharged by resistance R2 and the 7th pin, and now the 3rd pin is changed into low level, two triodes from high level VT1, VT2 end, the current vanishes of first and second primary coil, and the mutation of electric current causes that secondary coil produces high-tension electricity kinetic potential, should High-tension electricity kinetic potential disruptive spark plug produces electric arc to realize engine ignition, when the voltage of electric capacity C1 drops to 1/3VCC, electric capacity C1 is started to charge up again, and now the 3rd pin becomes high level again, and first and second primary coil produces electric current again, electric current from scratch, Secondary coil is because the vibration that the electric current that the mutation of electric current equally senses the generation primary coil of magnetic field, i.e., two goes round and begins again can Become, secondary coil is just continuously in the state with magnetic field, so as to extend the duration of ignition, and due to relative to conventional coil Speech, more primary coil in the same direction, correspondence increase the number of turn of secondary coil so that secondary coil is because curent change is produced Magnetic field it is relatively more powerful so that ignition coil have energy higher.Because resistance R1 is equal with resistance R2, electric capacity The C1 discharge and recharge times are equal, it is ensured that the generation of square wave, and using in one diode of resistance R2 two ends parallel connection, can obtain duty Than adjustable pulse oscillation circuit.

General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification Simply principle of the present utility model, the utility model also has respectively on the premise of the utility model spirit and scope are not departed from Changes and improvements are planted, these changes and improvements are both fallen within the range of claimed the utility model.The utility model requirement Protection domain defined by appending claims and its equivalent.

Claims

1. a kind of high-energy ignition coil, including low-voltage VCC, NE555 oscillating circuit, triode VT1, VT2 and ignition coil, It is characterized in that：The NE555 oscillating circuits be square-wave oscillator circuit, the ignition coil have be around in it is same iron core first Primary coil (1), the second primary coil (2), secondary coil (12), one end of first primary coil (1) and the second primary One end of coil (2) connects the low-voltage VCC, and the other end of first primary coil (1) is by triode VT1, described The other end of the second primary coil (2) is connected by triode VT2 with the NE555 oscillating circuits, the secondary coil (12) One end connect the low-voltage VCC, other end connection high-voltage output end.

2. a kind of high-energy ignition coil according to claim 1, it is characterised in that：First primary coil (1) One end is connected the low-voltage VCC, first primary coil with one end of second primary coil (2) by parallel way (1) the other end is connected with the colelctor electrode of the triode VT1, the other end and three pole of second primary coil (2) The colelctor electrode connection of pipe VT2, the grounded emitter of described triode VT1, VT2, base stage connects the NE555 oscillating circuits jointly The 3rd pin.

3. a kind of high-energy ignition coil according to claim 2, it is characterised in that：First primary coil (1) and Second primary coil (2) is arranged above and below and be wound in the same direction on the iron core, and the secondary coil (12) is primary positioned at described first Coil (1) and the second primary coil (2) outward, are wrapped on the iron core.

4. a kind of high-energy ignition coil according to claim 3, it is characterised in that：The 3rd of the NE555 oscillating circuits Pin is connected with the parallel connected end of described triode VT1, VT2 by resistance R3.

5. a kind of high-energy ignition coil according to claim 4, it is characterised in that：The NE555 oscillating circuits are by 8 pin Time-base integrated circuit NE555, resistance R1, R2, diode D1 and electric capacity C1, C2 are constituted, basis set when the resistance R1 is with 8 pin Connected into the 7th pin of circuit NE555 and the low-voltage VCC, the 2nd and the 6th of the 8 pin time-base integrated circuit NE555 draws After pin parallel connection, it is connected with the 7th pin by resistance R2, while by electric capacity C1 ground connection, the diode D1 and the electricity Resistance R2 two ends are in parallel, and the 1st pin ground connection of the 8 pin time-base integrated circuit NE555, the 5th pin is grounded by the electric capacity C2, The resistance R1 is equal with resistance R2 resistances.