CN203532139U - Inductance ignition device - Google Patents
Inductance ignition device Download PDFInfo
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- CN203532139U CN203532139U CN201320616378.5U CN201320616378U CN203532139U CN 203532139 U CN203532139 U CN 203532139U CN 201320616378 U CN201320616378 U CN 201320616378U CN 203532139 U CN203532139 U CN 203532139U
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- triode
- primary air
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- resistance
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- 230000006698 induction Effects 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000003321 amplification Effects 0.000 abstract description 7
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model discloses an inductance ignition device which comprises an ignition coil T1, a multi-stage amplification circuit and a control circuit. The ignition coil T1 is provided with a primary coil L1 and a secondary coil L2. The primary coil L1 comprises a point B and a grounded point A. The secondary coil L2 is provided with high voltage output. The output of the multi-stage amplification circuit is connected to the primary coil L1, and the multi-stage amplification circuit is provided with at least one control input end used for choosing to connect or disconnect the operation process of the multi-stage amplification circuit, so that the multi-stage amplification circuit is converted between the first state when large currents flow through the primary coil L1 and the second state when no large currents flow through the primary coil L1. The control circuit is used for controlling the time for which the multi-stage amplification circuit is converted between the first state and the second state. The whole circuit of the ignition device operates stably, and the manufacturing cost is low.
Description
Technical field
The utility model relates to miniature gasoline engine and uses ignition mechanism field, especially relates to a kind of induction type ignition device.
Background technique
The miniature gasoline engine ignition mechanisms such as existing miniature gasoline engine mowing machine, chain saw, blower, inductance ignition mechanism (T.C.I) generally adopts a Darlington triode amplified current, to triode self-characteristic as: the characteristic requirements such as power, magnification factor, electric current are very high.So operating conditions require and high environment under the every characteristic of triode all want suitable stable, otherwise easily damage cause product failure, and Darlington triode cost is higher, market price is 3～4 times of common power triode.
Model utility content
The utility model, in order to overcome the deficiencies in the prior art, provides a kind of inductance type stable, low cost of manufacture to amplify ignition mechanism.
To achieve these goals, the utility model by the following technical solutions: a kind of induction type ignition device, comprise spark coil T1, there is primary air L1 and secondary winding L2, primary air L1 comprises the A point of B point and ground connection, secondary winding L2 has High voltage output; Multistage amplifier circuit, its output is connected to described primary air L1, it has the running of at least one control input end for selecting conducting or ending described multistage amplifier circuit, makes multistage amplifier circuit flow through the first state of described primary air L1 and not have large electric current to flow through between the second state of this primary air L1 at large electric current and changes; And control circuit, the time of changing between the first state and the second state for controlling multistage amplifier circuit.
Further, described control circuit comprises resistance R 1, R2, R3, R5, triode Q1, Q2, and one end of described resistance R 1 is connected with the B point of primary air L1 with after resistance R 2 series connection, its other end ground connection; One end of described resistance R 3 is connected with the collector electrode of triode Q2, its other end ground connection; The base stage of triode Q2 is connected with the output terminal of resistance R 1 by diode D1, and the emitter of triode Q2 is connected with the B point of primary air L1; The collector electrode of triode Q1 is connected with the input end of diode D1, and the emitter of triode Q1 passes through to be connected with the B point of primary air L1 after series connection one capacitor C 1, and the base stage of triode Q1 is connected with the B point of primary air L1 by resistance R 5.
Further, described multistage amplifier circuit comprises triode Q3, Q4, Q5, and the base stage of triode Q3 is connected with the collector electrode of triode Q2, and the collector electrode of Q3 is by resistance R 4 ground connection, and the emitter of Q3 is connected with the B point of primary air L1; The base stage of triode Q4 is connected with the collector electrode of triode Q3, the grounded collector of Q4, and emitter is connected with the base stage of triode Q5; The grounded collector of triode Q5, emitter is connected with the base stage of described triode Q1.
Further, described triode Q1, Q2, Q3, Q5 are NPN type triode, and Q4 is PNP triode.
In sum, the utlity model has following advantage: this ignition mechanism is introduced multistage amplifier circuit as drive circuit, this circuit is used common power triode just can reach the effect of Darlington transistor, and circuit overall operation is stable, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is a kind of embodiment's of the present utility model circuit theory diagrams.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is carried out to clear, complete description.
As shown in Figure 1, a kind of induction type ignition device, its exterior mechanical structure comprises iron core 11, elementary skeleton 2, primary air 3, minute groove skeleton 4, minute slot coil 5, wiring terminal 6, circuit board 7, high-voltage leading-out wire 8, housing 9 and flame-out sheet 10, as shown in the inside schematic diagram of Fig. 2-ignition mechanism, it comprises spark coil T1, have primary air L1 and secondary winding L2, primary air L1 comprises the A point of B point and ground connection, and secondary winding L2 has High voltage output; Multistage amplifier circuit 1, its output is connected to described primary air L1, it has the running of at least one control input end for selecting conducting or ending described multistage amplifier circuit, makes multistage amplifier circuit flow through the first state of described primary air L1 and not have large electric current to flow through between the second state of this primary air L1 at large electric current and changes; And control circuit, the time of changing between the first state and the second state for controlling multistage amplifier circuit.
Concrete, in the present embodiment, described control circuit comprises resistance R 1, R2, R3, R5, NPN type triode Q1, Q2, and one end of described resistance R 1 is connected with the B point of primary air L1 with after resistance R 2 series connection, its other end ground connection; One end of described resistance R 3 is connected with the collector electrode of triode Q2, its other end ground connection; The base stage of triode Q2 is connected with the output terminal of resistance R 1 by diode D1, and the emitter of triode Q2 is connected with the B point of primary air L1; The collector electrode of triode Q1 is connected with the input end of diode D1, and the emitter of triode Q1 passes through to be connected with the B point of primary air L1 after series connection one capacitor C 1, and the base stage of triode Q1 is connected with the B point of primary air L1 by resistance R 5; Described multistage amplifier circuit 1 comprises triode Q3, Q4, Q5, and wherein, Q3, Q5 are NPN type triode, Q4 is positive-negative-positive triode, the base stage of triode Q3 is connected with the collector electrode of triode Q2, and the collector electrode of Q3 is by resistance R 4 ground connection, and the emitter of Q3 is connected with the B point of primary air L1; The base stage of triode Q4 is connected with the collector electrode of triode Q3, the grounded collector of Q4, and emitter is connected with the base stage of triode Q5; The grounded collector of triode Q5, emitter is connected with the base stage of described triode Q1.
Working principle:
When engine rotation, primary air L1 cutting magnetic line, L1 produces Pulse Electric kinetic potential.In figure, A point is common port (ground connection).
When B point produces positive pulse: form loop through R2, R1 and coil L1, discharge positive pulse electromotive force, triode is not all oppositely worked in cut-off state.
When B point produces negative impulse: when rising edge of a pulse arrives, to form and compare A point with B be high petential to A point, and A point provides b to tie bias voltage through R3 resistance to Q3, provides c to tie bias voltage, the first conducting of Q3 triode through R4 resistance to Q3.A point simultaneously also provides bias voltage through R1, D1 to Q2 b knot, so but can first conducting because there is D1 to form pressure drop Q2, also can make the first conducting of Q3 through adjusting the coupling of R1, R2, R3 resistance.After Q3 conducting, Q4 b junction voltage declines, and bias voltage Q4 conducting is provided to Q4 b knot, and after Q4 conducting, Q5 b junction voltage rises, and bias voltage Q5 conducting is provided to Q5 b knot, by Q3, Q4, Q5, forms multistage amplifier circuit.After Q5 conducting, Q1 b junction voltage rises, and bias voltage is provided to Q1 b knot, and A point provides c junction voltage to make Q1 conducting through R1 to Q1, forms loop after C1, C1 is charged simultaneously.After Q1 conducting, Q1 c junction voltage declines, and Q2 b knot bias voltage declines, Q2 remain off state.
All triodes all maintain above-mentioned working state, now B point pulse is constantly risen, C1 is constantly charged, when the pulse of B point approaches peak value, Q3, Q4, Q5 form multistage amplified current and substantially reach the highest, and C1 maintains charging and makes the Q1 cut-off during lower than Q1 turn-on condition with e junction voltage pressure reduction of Q1 b knot.After Q1 cut-off, Q1 c junction voltage rises, through D1, to Q2, provide c knot bias voltage Q2 conducting, after Q2 conducting, Q2 c junction voltage declines, Q3 c knot bias voltage declines and makes Q3 cut-off, after Q3 cut-off, Q3 c junction voltage rises, Q4 b knot bias voltage rises and makes Q4 cut-off, and after Q4 cut-off, Q4 c junction voltage declines, and Q5 b junction voltage declines and makes Q5 cut-off.Q3, the Q4 that now electric current amplifies, Q5 moment ends simultaneously, makes large electric current on L1 primary air produce sudden change, L1 elementary with secondary winding mutual inductance after at secondary generation afterflow High voltage output.
Now pulse trailing edge comes, and because of pulsed voltage continuous decrease, the voltage on C1 electric capacity, by forming loop through Q1 reverse leakage R2, discharges to C1, and Q1e knot oppositely makes Q1 maintain cut-off state with b knot.Because of Q1 remain off, Q2 also maintains conducting, and Q3 maintains cut-off, and Q4 maintains cut-off, and Q5 maintains cut-off.
When next pulse arrives, then repeat above-mentioned work cycle, produce one time High voltage output.Because the magneto rotor magnetic flywheel coil L1 B point that turns around only produces negative impulse one time, so magneto rotor turns around, L1 secondary winding produces output one sub-high pressure.
This igniter circuit is simple in structure, introduces multistage amplifier circuit, more stable than the operation of traditional single stage amplification circuit, better effects if; The every characteristic index of power tube is required all to decrease, use common power triode just can reach the effect of Darlington transistor, cost of material reduces greatly.
Obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (4)
1. an induction type ignition device, is characterized in that: comprise
Spark coil T1, has primary air L1 and secondary winding L2, and primary air L1 comprises the A point of B point and ground connection, and secondary winding L2 has High voltage output;
Multistage amplifier circuit, its output is connected to described primary air L1, it has the running of at least one control input end for selecting conducting or ending described multistage amplifier circuit, makes multistage amplifier circuit flow through the first state of described primary air L1 and not have large electric current to flow through between the second state of this primary air L1 at large electric current and changes;
And control circuit, the time of changing between the first state and the second state for controlling multistage amplifier circuit.
2. induction type ignition device according to claim 1, it is characterized in that: described control circuit comprises resistance R 1, R2, R3, R5, triode Q1, Q2, one end of described resistance R 1 is connected with the B point of primary air L1 with after resistance R 2 series connection, its other end ground connection; One end of described resistance R 3 is connected with the collector electrode of triode Q2, its other end ground connection; The base stage of triode Q2 is connected with the output terminal of resistance R 1 by diode D1, and the emitter of triode Q2 is connected with the B point of primary air L1; The collector electrode of triode Q1 is connected with the input end of diode D1, and the emitter of triode Q1 passes through to be connected with the B point of primary air L1 after series connection one capacitor C 1, and the base stage of triode Q1 is connected with the B point of primary air L1 by resistance R 5.
3. induction type ignition device according to claim 2, it is characterized in that: described multistage amplifier circuit comprises triode Q3, Q4, Q5, the base stage of triode Q3 is connected with the collector electrode of triode Q2, the collector electrode of Q3 is by resistance R 4 ground connection, and the emitter of Q3 is connected with the B point of primary air L1; The base stage of triode Q4 is connected with the collector electrode of triode Q3, the grounded collector of Q4, and emitter is connected with the base stage of triode Q5; The grounded collector of triode Q5, emitter is connected with the base stage of described triode Q1.
4. induction type ignition device according to claim 3, is characterized in that: described triode Q1, Q2, Q3, Q5 are NPN type triode, and Q4 is PNP triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320616378.5U CN203532139U (en) | 2013-10-08 | 2013-10-08 | Inductance ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320616378.5U CN203532139U (en) | 2013-10-08 | 2013-10-08 | Inductance ignition device |
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| Publication Number | Publication Date |
|---|---|
| CN203532139U true CN203532139U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320616378.5U Expired - Lifetime CN203532139U (en) | 2013-10-08 | 2013-10-08 | Inductance ignition device |
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| Country | Link |
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| CN (1) | CN203532139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595086A (en) * | 2014-12-05 | 2015-05-06 | 重庆瑜欣平瑞电子有限公司 | Circuit structure of universal gasoline engine igniter |
-
2013
- 2013-10-08 CN CN201320616378.5U patent/CN203532139U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595086A (en) * | 2014-12-05 | 2015-05-06 | 重庆瑜欣平瑞电子有限公司 | Circuit structure of universal gasoline engine igniter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 312300 Liang Lake Industrial Park, Shangyu District, Shaoxing, Zhejiang, Shangyu Patentee after: ZHEJIANG FENGLONG ELECTRICAL MACHINERY Co.,Ltd. Address before: 312351 Zhejiang province Shaoxing city Shangyu city Liang Lake Industrial Park Lu Ze West Road Patentee before: SHAOXING FENGLONG ELECTRICAL MACHINERY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
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| CX01 | Expiry of patent term |