CN2581828Y - Electronic lighter - Google Patents
Electronic lighter Download PDFInfo
- Publication number
- CN2581828Y CN2581828Y CN 02258822 CN02258822U CN2581828Y CN 2581828 Y CN2581828 Y CN 2581828Y CN 02258822 CN02258822 CN 02258822 CN 02258822 U CN02258822 U CN 02258822U CN 2581828 Y CN2581828 Y CN 2581828Y
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- CN
- China
- Prior art keywords
- ignition
- storage capacitor
- spark plug
- energy
- circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model relates to an electronic ignition device, which comprises an ignition coil connected with an ignition control circuit via a line. An output end of a secondary winding of the ignition coil is connected to a discharging gap part of a sparke plug; a line at both ends of the discharge gap of the spark plug is also connected with a low voltage discharge circuit; the low voltage discharge circuit is formed by the series connection of an energy storage capacitor, a current limiting resistor, and a unilateral conduction diode set; the energy storage capacitor is externally connected with a charge power supply. At the time of ignition, the secondary winding of the ignition coil generates a high voltage with negative polarity, the discharge gap is punctured, the discharge is carried out at the spark plug part, and the discharge gap of the spark plug part is changed into a off state from an opening state; at the time, the energy storage capacitor also carries out discharge to the spark plug; two paths of electric current are overlapped together, a strong arc flame can be generated at the discharge gap part. At the time of ignition, the ignition energy is mainly supplied by the energy storage capacitor, and the amount of the ignition energy is determined by the electric capacity of the energy storage capacitor.
Description
Technical field
The utility model relates to a kind of igniter of engine, particularly a kind of electronic ignition device.
Background technology
At present, be widely used in automobile both at home and abroad, the various ignitions of motorcycle, although circuit structure is of a great variety, performance characteristics also has his own strong points, but without exception, all there is a something in common: finally all be to rely on ignition coil or pass through circuit of ignition coil, provide whole ignition energies to spark plug, because ignition coil is subjected to the restriction of factors such as own wt and external volume, do not allow and do very greatly, therefore, its energy storage or the ability of switching energy are quite limited, and then to a great extent, seriously restricted the further raising of ignition energy, so that both at home and abroad for counting from many, panoramic igniter is although their circuit has designed quite perfectly, but, but be limited in all the time on this lower level of 100mj as weighing a vital technical performance index one igniting energy of all electronic ignition systems.Along with worldwide energy supply growing tension, national governments also more and more pay attention to environmental protection problem, and the cry that requires energy savings, reduction to pollute in the world is more and more higher.If will popularize the theory and the technology of application engine lean burn in an all-round way, further to satisfy requirements such as fuel savings, reduction discharging, such ignition energy obviously is not enough.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, has proposed a kind of electronic ignition device that can improve ignition energy greatly.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of electronic ignition device, it comprises the ignition coil that joins by circuit and ignition control circuit, the output of the secondary windings of ignition coil is connected to the discharging gap place of spark plug, be characterized in: on the circuit at spark plug discharging gap two ends, also be parallel with one road low pressure discharge circuit, described low pressure discharge circuit is made of energy-storage capacitor, current-limiting resistance, unilateal conduction diode group serial connection, is circumscribed with charge power supply on the energy-storage capacitor.Under normal conditions, the discharging gap of spark plug is in off state, and charging voltage can not puncture by discharging gap, does not influence charging normal of storage capacitor.When igniting, secondary windings by ignition coil produces negative high-voltage, and the disruptive discharge gap begins discharge at the spark plug place, then the discharging gap at spark plug place changes channel status into by off state at once, and this moment, energy-storage capacitor also began to discharge to spark plug.Two strands of electric currents are superimposed, and can generate powerful arc flame at the discharging gap place.Behind the discharge off, the discharging gap of spark plug can recover off state automatically, waits for igniting next time.
The technical problems to be solved in the utility model can also be achieved through the following technical solutions, described low pressure discharge circuit is directly in parallel with the secondary windings of ignition coil, is connected with unilateal conduction diode group on the circuit between the contact of output of secondary windings and low pressure discharge circuit.Owing to be direct parallel connection, for preventing that the secondary windings that capacitor passes through ignition coil from directly discharging, so on the circuit between the contact of output of secondary windings and low pressure discharge circuit, be connected with unilateal conduction diode group, thereby avoid the problem of capacitor and the mutual crosstalk of secondary windings.
The technical problems to be solved in the utility model can also be achieved through the following technical solutions, the two ends of the unilateal conduction diode group in two outputs of described ignition coil secondary windings and the low pressure discharge circuit link to each other, promptly the ignition coil secondary windings earlier with the low pressure discharge circuit in the parallel connection of unilateal conduction diode group after connect with energy-storage capacitor, current-limiting resistance again.The negative high voltage of the secondary windings of ignition coil output arrives spark plug by energy-storage capacitor, current-limiting resistance during igniting, when the breakdown discharge in spark plug gap, storage capacitor also discharges to spark plug simultaneously, because there is big impedance in secondary windings, so storage capacitor only can be by the unilateal conduction diode directly to the spark plug gap discharge.
The utility model compared with prior art, on the circuit at spark plug discharging gap two ends, also be parallel with one road low pressure discharge circuit, when igniting, secondary windings by ignition coil produces negative high-voltage, the disruptive discharge gap, begin discharge at the spark plug place, then the discharging gap at spark plug place changes channel status into by off state at once, and this moment, energy-storage capacitor also began to discharge to spark plug.Two strands of electric currents are superimposed, and can generate powerful arc flame at the discharging gap place.When igniting, ignition energy mainly is to be supplied with by energy-storage capacitor, and the size of its ignition energy is by the capacitance decision of storage capacitor, when charging voltage is 300 volts, the capacitor of 33uf just can provide the ignition energy that is approximately 1000mj, is to be equivalent to ten times of igniter ignition energy in the past.
Description of drawings
Fig. 1 is a kind of embodiment circuit diagram of the present utility model.
Fig. 2 is another kind of embodiment circuit diagram.
The specific embodiment
As shown in Figure 1, a kind of electronic ignition device, it comprises the ignition coil 8 that joins by circuit and ignition control circuit 9, the output of the secondary windings 6 of ignition coil 9 is connected to discharging gap 7 places of spark plug, on the circuit at spark plug discharging gap 7 two ends, also be parallel with one road low pressure discharge circuit 2, described low pressure discharge circuit 2 is made of energy-storage capacitor 1, current-limiting resistance 3, unilateal conduction diode group 4 serial connections, is circumscribed with charge power supply on the energy-storage capacitor 1.The secondary windings 6 of described low pressure discharge circuit 2 and ignition coil 8 is directly in parallel, is connected with unilateal conduction diode group 5 on the circuit between the contact of output of secondary windings 6 and low pressure discharge circuit 2.
Another kind of embodiment of the present utility model is: as shown in Figure 2, the two ends of the unilateal conduction diode group 4 in two outputs of described ignition coil secondary windings 6 and the low pressure discharge circuit 2 link to each other, promptly ignition coil secondary windings 6 earlier with low pressure discharge circuit 2 in 4 parallel connections of unilateal conduction diode group after connect with energy-storage capacitor 1, current-limiting resistance 3 again.Igniter of the present utility model both can be used for the igniting of motorcycle engine, also can be used for the igniting of the engine of other multi-cylinder, as automobile etc.
Claims (3)
1. electronic ignition device, it comprises the ignition coil (8) that joins by circuit and ignition control circuit (9), the output of the secondary windings (6) of ignition coil (8) is connected to the discharging gap (7) of spark plug and locates, it is characterized in that: on the circuit at spark plug discharging gap (7) two ends, also be parallel with one road low pressure discharge circuit (2), described low pressure discharge circuit (2) is made of energy-storage capacitor (1), current-limiting resistance (3), unilateal conduction diode group (4) serial connection, and energy-storage capacitor is circumscribed with charge power supply on (1).
2. electronic ignition device according to claim 1, it is characterized in that: the secondary windings (6) of described low pressure discharge circuit (2) and ignition coil is directly in parallel, is connected with unilateal conduction diode group (5) on the circuit between the contact of output of secondary windings (6) and low pressure discharge circuit (2).
3. electronic ignition device according to claim 1, it is characterized in that: the two ends of the unilateal conduction diode group (4) in two outputs of described ignition coil secondary windings (6) and the low pressure discharge circuit (2) link to each other, promptly ignition coil secondary windings (6) earlier with low pressure discharge circuit (2) in unilateal conduction diode group (4) parallel connection after connect with energy-storage capacitor (1), current-limiting resistance (3) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258822 CN2581828Y (en) | 2002-12-10 | 2002-12-10 | Electronic lighter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258822 CN2581828Y (en) | 2002-12-10 | 2002-12-10 | Electronic lighter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2581828Y true CN2581828Y (en) | 2003-10-22 |
Family
ID=33726450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02258822 Expired - Fee Related CN2581828Y (en) | 2002-12-10 | 2002-12-10 | Electronic lighter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2581828Y (en) |
-
2002
- 2002-12-10 CN CN 02258822 patent/CN2581828Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |