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ignition coil system
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A technology for ignition coils and coil windings, applied in the direction of transformers/inductor coils/windings/connections, transformers, electrical components, etc., can solve the problems of low ignition efficiency, achieve the effects of reducing requirements, reducing electromagnetic coupling losses, and reducing costs
Active Publication Date: 2017-03-22
UNITED AUTOMOTIVE ELECTRONICS SYST
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Abstract
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Problems solved by technology
The energy loss of the existing ignition coil is mainly in three aspects: the resistance loss power of the primary coil winding, the magnetic circuit loss of electromagnetic coupling and the resistance loss power power of the secondary coil winding. The efficiency value is generally about 40%, and the ignition efficiency is low. Inhibits the development of ignition coils in the direction of high performance (high energy, long life, etc.)
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Embodiment 1
[0022] ignition coil systems such as figure 2 As shown, including DC booster (DC-DC booster), coil winding, electronic switch, spark plug;
[0023] The DC booster, the low-voltage end is used to connect to the vehicle power supply;
[0024] The upper end of the coil winding is connected to the high-voltage end of the DC booster, and the lower end is connected to the high-voltage center pole of the spark plug;
[0025] The side pole of the spark plug is grounded;
[0026] In the electronic switch, one current transmission terminal is connected to the lower end of the coil winding, the other current transmission terminal is grounded, and the control terminal is used to connect the ignition signal output by the electronic control unit (ECU).
[0027] Preferably, the DC booster is a 4.5-18V to 1000V DC booster.
[0028] Preferably, the wire diameter of the coil winding is greater than or equal to 0.5mm. The coil winding uses a coil with a larger wire diameter to reduce the re...
Embodiment 2
[0033] Based on the ignition coil system of Embodiment 1, such as image 3 As shown, the ignition coil system also includes a suppression resistor;
[0034] The suppression resistor is connected in series between the lower end of the coil winding and the high voltage center pole of the spark plug.
[0035] In the ignition coil system of the second embodiment, a suppressing resistor is connected in series between the lower end of the coil winding and the high-voltage center pole of the spark plug to increase the resistance of the discharge circuit of the coil winding and suppress electromagnetic interference.
[0036] Ignition coil system of the present invention, its operating principle is analyzed as follows:
[0037] The coil winding acts as an energy storage element for electric field energy, and its total input energy is:
[0038]
[0039] W is the total energy of the input energy, I p is the current value at the moment when the charging circuit of the coil winding i...
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Abstract
An ignition coilsystem comprises a direct currentvoltage booster, a coil winding, an electronic switch and a spark plug. The low-voltage end of the direct currentvoltage booster is used for being connected with a vehicle-mounted power supply. The upper end of the coil winding is connected to the high-voltage end of the direct current voltage booster, and the lower end of the coil winding is connected with the high-voltage center pole of the ignition plug. One current transmitting end of the electronic switch is connected with the lower end of the coil winding; the other current transmitting end of the electronic switch is grounded, and the control end of the electronic switch is used for being connected with an ignition signal. According to the ignition coilsystem, only one coil winding is needed, and the coil winding is directly acted on the ignition plug so that the electromagnetic coupling loss is reduced; the energy utilization efficiency of ignition is greatly improved, and the cost is lowered.
Description
technical field [0001] The invention relates to engine technology, in particular to an ignition coilsystem. Background technique [0002] The ignition coil system is used in the engine ignition system and belongs to the actuator, which is responsible for generating high voltage breakdown spark plug ignition. [0003] The structural principle diagram of the existing ignition coil is as follows: figure 1 As shown, it includes the primary coil winding L1, the secondary coil winding L2, and the magnetic core. One end of the primary coil winding L1 is connected to the positive pole of the vehicle power supply E, the other end is connected to the negative pole of the vehicle power supply E through a switch K, and one end of the secondary coil winding L2 is connected to the vehicle power supply E. The negative pole of the power supply E is connected, and the other end is connected to the high-voltage central pole of the spark plug P. The ignition coil is controlled by the ECU (E...
Claims
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Application Information
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