CN208633971U - Ignition controller for petrol engine - Google Patents
Ignition controller for petrol engine Download PDFInfo
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- CN208633971U CN208633971U CN201821172102.1U CN201821172102U CN208633971U CN 208633971 U CN208633971 U CN 208633971U CN 201821172102 U CN201821172102 U CN 201821172102U CN 208633971 U CN208633971 U CN 208633971U
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Abstract
A kind of ignition controller for petrol engine provided by the utility model, including igniting unit and ignition control unit；The igniting unit is connect with the primary coil L1 of the ignition transformer of gasoline engine, for control ignition transformer secondary coil L2 whether to spark plug load ignition voltage；The ignition control unit includes control input circuit, power circuit and flame-out delay circuit；The ignition control circuit, ignition control input terminal are connect with peripheral control unit, for receiving the working condition of the control signal of peripheral control unit and then control igniting unit；The ignition control input terminal of flame-out delay circuit, delays time to control output end and ignition control circuit connects, for controlling auto extinguishing after the gasoline engine delay working section time in the input of ignition control input terminal no signal；The connection of the primary coil L1 of power circuit, input terminal and ignition transformer, for providing electricity consumption to flame-out delay circuit；It can effectively ensure personal safety.
Description
Technical field
The utility model relates to a kind of ignition controller more particularly to a kind of ignition controller for petrol engine.
Background technique
Gasoline engine is used widely in people's Working Life as the power source of tool, farm machinery: mini-tiller is broadcast
Kind machine, water pumper etc.；Graden machine: grass trimmer, grass-mowing machine, chain saw etc.；Gas-liquid-liquid three-phase flow etc. as backup power source.
It is abnormal that gasoline engine will appear engine mounted longitudinally racing, use environment CO (carbon monoxide) concentration over-standard etc. in use
Cause personal injury or even casualties；In order to solve this kind of accident, protective device can be connect on engine, by engine
Above-mentioned failure detected, make the igniter of petrol engine flame-out when occurring abnormal, engine is shut down.But in use
The connecting line of protective device and igniter will appear fall off, be broken etc. exceptions and protective device failure and effective guarantor cannot be generated
Shield, so that there are serious security risks.
Therefore, in order to solve the above-mentioned technical problem, need to propose a kind of new igniter of gasoline engine.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of ignition controller for petrol engine, when the failure of gasoline engine is protected
It, can be effective when protection unit and igniter exceptions and the protective device failure such as fall off, are broken and cannot generate effective protection
Ensure that gasoline engine will not occur to light a fire and reliably stop working, to deprotect the personal safety of user.
A kind of ignition controller for petrol engine provided by the utility model, including igniting unit and ignition control unit；
The igniting unit is connect, for controlling ignition transformer with the primary coil L1 of the ignition transformer of gasoline engine
Secondary coil L2 whether to spark plug load ignition voltage；
The ignition control unit includes control input circuit, power circuit and delayed extinction circuit；
The ignition control circuit, ignition control input terminal is connect with peripheral control unit, for receiving peripheral control unit
Control signal so that control igniting unit working condition；
The ignition control input terminal of delayed extinction circuit, control output end and ignition control circuit connects, in point
When fiery control signal no signal inputs, igniter of gasoline engine delayed extinction is controlled；
The connection of the primary coil L1 of power circuit, input terminal and ignition transformer, for being mentioned to delayed extinction circuit
For electricity consumption.
Further, the ignition control circuit includes triode Q6, diode D3 and resistance R10；
The base stage of the triode Q6 is connect as ignition control input terminal with peripheral control unit, and the base stage of triode Q6 is logical
It crosses resistance R10 to connect with flame-out line, the emitter of triode Q6 connects flame-out line, the collector of triode Q6 and bearing for diode D3
The anode of pole connection, diode D3 is connected as the control output end of ignition control circuit and the control signal of igniting unit.
Further, the delayed extinction circuit include diode D2, capacitor C3, resistance R7, resistance R8, resistance R9 and
Metal-oxide-semiconductor Q7；
The cathode of the diode D2 and the output end of power circuit connect, and the anode of diode D2 is connect by capacitor C3 to be put out
One end of firewire, resistance R7 is connect with the cathode of diode D2, and the other end of resistance R7 is connected to the grid of metal-oxide-semiconductor Q7, metal-oxide-semiconductor
The drain electrode of Q7 is connected to the cathode of diode D2, output end of the source electrode of metal-oxide-semiconductor Q7 as delayed extinction circuit by resistance R8
It is connected to ignition control input terminal, the grid of metal-oxide-semiconductor Q7 connects flame-out line by resistance R9, and the grid of metal-oxide-semiconductor Q7 is also attached to two
Points of common connection between the anode and capacitor C3 of pole pipe D2.
Further, the power circuit includes diode D1, resistance R6 and capacitor C2；
The cathode of the plus earth of diode D1, diode D1 is connect by resistance R6 with one end of capacitor C2, capacitor C2
Another termination stop working line, output end of the points of common connection of resistance R6 and capacitor C2 as power circuit.
Further, the igniting unit includes resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, capacitor C1, three poles
Pipe Q1, triode Q2, triode Q3, triode Q4 and triode Q5；
One end of the resistance R1 is grounded, and the other end connects flame-out line by resistance R2；
The emitter of triode Q4 is grounded, and the collector of triode Q4 is connect with the base stage of triode Q5, triode Q5's
The emitter of grounded collector, triode Q5 connects flame-out line, one end ground connection of resistance R4, the other end of resistance R4 by resistance R5
It is connected to the collector of triode Q3, the emitter of triode Q3 connects flame-out line, between the collector and resistance R4 of triode Q3
Points of common connection connect with the base stage of triode Q4, the points of common connection conduct between the collector and resistance R4 of triode Q3
The control signal of igniting unit and the output end of ignition control circuit connect；
The base stage of triode Q3 is grounded by resistance R3, and the base stage of triode Q3 is connect with the collector of triode Q2, and three
The emitter of pole pipe Q2 connects flame-out line, and the base stage of triode Q2 is connected to the points of common connection between resistance R1 and resistance R2；Three
The emitter of pole pipe Q1 connects flame-out line by capacitor C1, and the collector of triode Q1 is connected to the public affairs between resistance R1 and resistance R2
Tie point, the base stage of triode Q1 are connected to the points of common connection between resistance R5 and triode Q5 altogether；Wherein, triode Q4 is
PNP type triode.
It further, further include flameout switch, one end ground connection of the flameout switch is another to terminate flame-out line.
The utility model has the beneficial effects that by the utility model, when the failure protecting device and igniter of gasoline engine are sent out
It is raw when exceptions and the protective device failure such as falling off, be broken and effective protection cannot be generated, it can effectively ensure that gasoline engine will not be sent out
Life lights a fire and reliably stops working, to deprotect the personal safety of user.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples:
Fig. 1 is the principles of the present invention block diagram.
Fig. 2 is the physical circuit schematic diagram of the utility model.
Fig. 3 is the waveform diagram of the magneto induced electromotive force of the utility model.
Specific embodiment
Further description is made to the utility model below in conjunction with Figure of description, as shown in the figure:
A kind of ignition controller for petrol engine provided by the utility model, including igniting unit and ignition control unit；
The igniting unit is connect, for controlling ignition transformer with the primary coil L1 of the ignition transformer of gasoline engine
Secondary coil L2 whether to spark plug load ignition voltage；Wherein, one end ground connection of the primary coil L1 of ignition transformer, separately
One terminates flame-out line；And the stator coil of primary coil L1, that is, gasoline engine magneto；
The ignition control unit includes control input circuit, power circuit and delayed extinction circuit；
The ignition control circuit, ignition control input terminal is connect with peripheral control unit, for receiving peripheral control unit
Control signal so that control igniting unit working condition；
The ignition control input terminal of delayed extinction circuit, control output end and ignition control circuit connects, in point
When fiery control signal no signal inputs, the delayed firing of igniter of gasoline engine is controlled.
The connection of the primary coil L1 of power circuit, input terminal and ignition transformer, for being mentioned to delayed extinction circuit
For electricity consumption；It, can when the failure protecting device of gasoline engine and igniter such as fall off, are broken at the failures by above structure
Effectively ensure that gasoline engine will not occur to light a fire and reliably stop working, to deprotect the personal safety of user.
In the present embodiment, the ignition control circuit includes triode Q6, diode D3 and resistance R10；
The base stage of the triode Q6 is connect as ignition control input terminal with peripheral control unit, and the base stage of triode Q6 is logical
It crosses resistance R10 to connect with flame-out line, the emitter of triode Q6 connects flame-out line, the collector of triode Q6 and bearing for diode D3
The anode of pole connection, diode D3 is connected as the control output end of ignition control circuit and the control signal of igniting unit,
By this structure, igniting unit can be accurately controlled.
In the present embodiment, the flame-out delay circuit include diode D2, capacitor C3, resistance R7, resistance R8, resistance R9 with
And metal-oxide-semiconductor Q7；
The cathode of the diode D2 and the output end of power circuit connect, and the anode of diode D2 is connect by capacitor C3 to be put out
One end of firewire, resistance R7 is connect with the cathode of diode D2, and the other end of resistance R7 is connected to the grid of metal-oxide-semiconductor Q7, metal-oxide-semiconductor
The drain electrode of Q7 is connected to the cathode of diode D2, output end of the source electrode of metal-oxide-semiconductor Q7 as flame-out delay circuit by resistance R8
It is connected to ignition control input terminal, the grid of metal-oxide-semiconductor Q7 connects flame-out line by resistance R9, and the grid of metal-oxide-semiconductor Q7 is also attached to two
Points of common connection between the anode and capacitor C3 of pole pipe D2, by above structure, in engine start, if without external control
Signal processed postpones flame-out (several seconds time of engine operation is made to stop working again), has not only been conducive to user and has judged failure, but also has ensured user
Safety.
In the present embodiment, the power circuit includes diode D1, resistance R6 and capacitor C2；
The cathode of the plus earth of diode D1, diode D1 is connect by resistance R6 with one end of capacitor C2, capacitor C2
Another termination stop working line, output end of the points of common connection of resistance R6 and capacitor C2 as power circuit, wherein power circuit
Output voltage be VCC.
In the present embodiment, the igniting unit include resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, capacitor C1,
Triode Q1, triode Q2, triode Q3, triode Q4 and triode Q5；
One end of the resistance R1 is grounded, and the other end connects flame-out line by resistance R2；
The emitter of triode Q4 is grounded, and the collector of triode Q4 is connect with the base stage of triode Q5, triode Q5's
The emitter of grounded collector, triode Q5 connects flame-out line, one end ground connection of resistance R4, the other end of resistance R4 by resistance R5
It is connected to the collector of triode Q3, the emitter of triode Q3 connects flame-out line, between the collector and resistance R4 of triode Q3
Points of common connection connect with the base stage of triode Q4, the points of common connection conduct between the collector and resistance R4 of triode Q3
The control signal of igniting unit and the output end of ignition control circuit connect；
The base stage of triode Q3 is grounded by resistance R3, and the base stage of triode Q3 is connect with the collector of triode Q2, and three
The emitter of pole pipe Q2 connects flame-out line, and the base stage of triode Q2 is connected to the points of common connection between resistance R1 and resistance R2；Three
The emitter of pole pipe Q1 connects flame-out line by capacitor C1, and the collector of triode Q1 is connected to the public affairs between resistance R1 and resistance R2
Tie point, the base stage of triode Q1 are connected to the points of common connection between resistance R5 and triode Q5 altogether；Wherein, triode Q4 is
PNP type triode.
It further include flameout switch in the present embodiment, one end ground connection of the flameout switch is another to terminate flame-out line.
Further description is made to the utility model below:
Wherein, igniting unit is an existing structure, its working principles are as follows:
When magneto work, primary coil L1 induces an electromotive force, and waveform is as shown in figure 3, work as induced electromotive force
When in negative half-cycle, the partial pressure effect of resistance R1 and resistance R2 prevent triode Q2 from being connected prior to triode Q3 (by setting
The resistance value for determining resistance R1 and resistance R2 is realized), after triode Q3 conducting, Q4, Q5 conducting；After Q5 conducting, primary coil L1 induction
Induced electromotive force out is formed into a loop conducting through the pole CE of primary coil L1, resistance R5, triode Q5.
At this point, the pressure drop on resistance R5 increases with the increase of electric current, when the pressure drop on resistance R5 is greater than the conducting of Q1
When voltage, triode Q1 conducting at this time is to charge to C1, and Q1 and the capacitor circuit to be formed of connecting are equivalent on R1 simultaneously at this time
Join a resistance, triode Q2 cut-off, as the voltage on capacitor C1 increases, triode Q1 ends, at this time the pressure on resistance R1
Drop, which is also added to, can be such that triode Q2 is connected, and Q2 conducting is to make Q3, Q4, Q5 end therewith, at this time in primary coil L1 self-induction
The voltage for answering a several hectovolts is boosted by secondary coil L2, secondary coil output 10KV or more high voltage to spark plug
On, the gaseous mixture in ignition engine cylinder.
The principle of the ignition control unit of the utility model:
When a failure occurs, the base stage of peripheral control unit (for the prior art, not in this to go forth) to triode Q6 is defeated
Enter high level, triode Q6 is connected at this time, at this point, BE pole → bis- of the negative voltage through triode Q4 that primary coil L1 is induced
The pole CE pole pipe D3 → triode Q6 forming circuit, triode Q4, triode Q5 are connected at this time, and Q4, Q5 will not be turned off, to make
Obtaining no inductance voltage output, gasoline engine on primary coil L1 will not light a fire；
When peripheral control unit input low level, triode Q6 ends, and igniter is real according to the control principle of igniting unit
Now light a fire.
Delayed extinction:
When ignition control input terminal caused by the reasons such as falling off, being broken because opening a way and when protective device failure is without output, igniting
Control terminal no signal, voltage VCC is charged by resistance R7 to C3 at this time.When capacitor C3 both end voltage UC3 >=metal-oxide-semiconductor Q7 conducting
When voltage UT Q7, metal-oxide-semiconductor Q7 conducting, after metal-oxide-semiconductor Q7 conducting, voltage VCC is formed by resistance R8 → metal-oxide-semiconductor Q7 → Q6 BE
Circuit, triode Q6 conducting；After Q6 conducting, triode Q4, Q5 maintain conducting, so igniter misfires；Wherein, delay is flame-out
Time determines by the charging time of capacitor C3；It is acted on by the delayed extinction of the application, after failure is shut down, user
Member, which can run, to be checked, it will usually be restarted engine, if starting engine is normal, be shut down, use after a period of time that is delayed
It is normal, but the shutdown that other failure causes generate that personnel, which judge engine itself,.
Fast quick-recovery: when engine is because control line falls off, is broken or when alarm failure and other reasons are shut down, capacitor C2 at this time
The charge of upper storage ties quick bleed off by D2 → R8 → Q7 → Q6 BE, to guarantee to start immediately after engine is shut down.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (6)
1. a kind of ignition controller for petrol engine, it is characterised in that: including igniting unit and ignition control unit；
The igniting unit is connect with the primary coil L1 of the ignition transformer of gasoline engine, for controlling time of ignition transformer
Whether grade coil L2 to spark plug loads ignition voltage；
The ignition control unit includes control input circuit, power circuit and delayed extinction circuit；
The ignition control circuit, ignition control input terminal are connect with peripheral control unit, for receiving the control of peripheral control unit
Signal processed and then the working condition for controlling igniting unit；
The ignition control input terminal of delayed extinction circuit, control output end and ignition control circuit connects, in a fire control
When input terminal no signal processed inputs, igniter of gasoline engine delayed extinction is controlled；
The connection of the primary coil L1 of power circuit, input terminal and ignition transformer, for providing use to delayed extinction circuit
Electricity.
2. ignition controller for petrol engine according to claim 1, it is characterised in that: the ignition control circuit includes triode
Q6, diode D3 and resistance R10；
The base stage of the triode Q6 is connect as ignition control input terminal with peripheral control unit, and the base stage of triode Q6 passes through electricity
Resistance R10 is connect with flame-out line, and the emitter of triode Q6 connects flame-out line, and the collector of triode Q6 and the cathode of diode D3 connect
It connects, the anode of diode D3 is connected as the control output end of ignition control circuit and the control signal of igniting unit.
3. ignition controller for petrol engine according to claim 1, it is characterised in that: the delayed extinction circuit includes diode
D2, capacitor C3, resistance R7, resistance R8, resistance R9 and metal-oxide-semiconductor Q7；
The cathode of the diode D2 and the output end of power circuit connect, and the anode of diode D2 is connect flame-out by capacitor C3
One end of line, resistance R7 is connect with the cathode of diode D2, and the other end of resistance R7 is connected to the grid of metal-oxide-semiconductor Q7, metal-oxide-semiconductor Q7
Drain electrode the cathode of diode D2 is connected to by resistance R8, the source electrode of metal-oxide-semiconductor Q7 connects as the output end of flame-out delay circuit
It is connected to ignition control input terminal, the grid of metal-oxide-semiconductor Q7 connects flame-out line by resistance R9, and the grid of metal-oxide-semiconductor Q7 is also attached to two poles
Points of common connection between the anode and capacitor C3 of pipe D2.
4. ignition controller for petrol engine according to claim 1, it is characterised in that: the power circuit include diode D1,
Resistance R6 and capacitor C2；
The cathode of the plus earth of diode D1, diode D1 is connect by resistance R6 with one end of capacitor C2, and capacitor C2's is another
Output end of the points of common connection of the flame-out line of one termination, resistance R6 and capacitor C2 as power circuit.
5. ignition controller for petrol engine according to claim 1, it is characterised in that: the igniting unit includes resistance R1, electricity
Hinder R2, resistance R3, resistance R4, resistance R5, capacitor C1, triode Q1, triode Q2, triode Q3, triode Q4 and three poles
Pipe Q5；
One end of the resistance R1 is grounded, and the other end connects flame-out line by resistance R2；
The emitter of triode Q4 is grounded, and the collector of triode Q4 is connect with the base stage of triode Q5, the current collection of triode Q5
The emitter of pole ground connection, triode Q5 connects flame-out line, one end ground connection of resistance R4, the other end connection of resistance R4 by resistance R5
In the collector of triode Q3, the emitter of triode Q3 connects flame-out line, the public affairs between the collector and resistance R4 of triode Q3
Tie point is connect with the base stage of triode Q4 altogether, and the points of common connection between the collector and resistance R4 of triode Q3 is as igniting
The control signal of unit and the output end of ignition control circuit connect；
The base stage of triode Q3 is grounded by resistance R3, and the base stage of triode Q3 is connect with the collector of triode Q2, triode
The emitter of Q2 connects flame-out line, and the base stage of triode Q2 is connected to the points of common connection between resistance R1 and resistance R2；Triode
The emitter of Q1 connects flame-out line by capacitor C1, and the collector of triode Q1 is connected to the public company between resistance R1 and resistance R2
Contact, the base stage of triode Q1 are connected to the points of common connection between resistance R5 and triode Q5；Wherein, triode Q4 is PNP
Type triode.
6. ignition controller for petrol engine according to claim 1, it is characterised in that: further include flameout switch, described stop working opens
One end of pass is grounded, another to terminate flame-out line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172102.1U CN208633971U (en) | 2018-07-22 | 2018-07-22 | Ignition controller for petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172102.1U CN208633971U (en) | 2018-07-22 | 2018-07-22 | Ignition controller for petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208633971U true CN208633971U (en) | 2019-03-22 |
Family
ID=65738498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821172102.1U Active CN208633971U (en) | 2018-07-22 | 2018-07-22 | Ignition controller for petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208633971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757263A (en) * | 2018-07-22 | 2018-11-06 | 重庆力华自动化技术有限责任公司 | Safety-type ignition controller for petrol engine |
-
2018
- 2018-07-22 CN CN201821172102.1U patent/CN208633971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757263A (en) * | 2018-07-22 | 2018-11-06 | 重庆力华自动化技术有限责任公司 | Safety-type ignition controller for petrol engine |
| CN108757263B (en) * | 2018-07-22 | 2024-05-10 | 隆鑫通用动力股份有限公司 | Safety ignition controller for petrol engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191126 Address after: 99 No. 400052 Chongqing Jiulongpo Hualong Avenue Kowloon Park Patentee after: Loncin General Dynamics Co., Ltd. Address before: The 401121 northern New District of Chongqing Municipality gold open avenue west side (H standard District No. 1-1-5) Patentee before: Chongqing Lihua Automation Technology Co., Ltd. |
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| TR01 | Transfer of patent right |