Pencil Ignition Coils Structure

　Hello everyone, JEC ignition coil is here to answer the above questions for you. Pencil ignition coils structure, many people don't know about pencil ignition coils, let's take a look now!

　　1. It depends on the type of ignition coil. If it is a pen-type or a fake pen-type ignition coil, there are 4 wires, usually positive, ground, signal, and ground, such as the pencil ignition coils of the Volkswagen series.

　　2. There are positive, ground, signal, and feedback.

　　3. Generally, we use a multimeter to test the power supply first, and then use the DC voltage file to test the wiring harness end; then use the multimeter to test the ground wire, and use the resistance file to test the wiring harness end. The rest is the signal or feedback. Generally, the feedback signal needs a dedicated instrument can test it out.

　　4. There are two sets of coils in the ignition coil, the primary coil, and the secondary coil.

　　5. The primary coil uses a thicker enameled wire, usually about 200-500 turns with an enameled wire of about 0.5-1 mm; the secondary coil uses a thinner enameled wire, usually about 15000-25000 turns with an enameled wire of about 0.1 mm.

　　6. One end of the primary coil is connected to the low-voltage power supply (+) on the vehicle, and the other end is connected to the switch device (breaker).

　　7. One end of the secondary coil is connected to the primary coil, and the other end is connected to the output end of the high-voltage line to output high-voltage electricity.

　　8. Extended information: When the primary coil is powered on, a strong magnetic field is generated around it as the current increases, and the iron core stores the magnetic field energy; when the switch device disconnects the primary coil circuit, the magnetic field of the primary coil decays rapidly, the secondary coil will induce a very high voltage.

　　9. The faster the magnetic field of the primary coil disappears, the greater the current at the moment of current disconnection, and the greater the turn ratio of the two coils, the higher the voltage induced by the secondary coil.

　　10. If on a 4-cylinder machine, when the pistons of the two cylinders are close to the top dead center at the same time (one is compression and the other is the exhaust), the two spark plugs share the same ignition coil and ignite at the same time. At this time, one is effective ignition and the other is invalid ignition.

　　11. The former is in the mixed gas of high pressure and low temperature, and the latter is in the exhaust gas of low pressure and high temperature, so the resistance between the two spark plug electrodes is completely different, and the energy generated is also different, resulting in much greater energy for effective ignition. About 80% of the total energy.

　　12. Source of reference: Baidu Encyclopedia--Ignition Coil The ignition coil you mentioned has four wires, so the coil is generally one coil for four cylinders, and the four wires are power supply, ground, and two signals. You can't measure the four wires, because there is an ignition module inside such a coil, which is an integrated circuit, and you can't measure it with a multimeter.

　　13. It depends on the type of ignition coil. If it is a pen-type or a fake pen-type ignition coil, there are 4 wires, usually positive, ground, signal, and ground, such as the pencil ignition coils of the Volkswagen series.

　　14. There are positive, ground, signal, and feedback.

　　15. Generally, we use a multimeter to measure the power supply first, and then use the DC voltage file to test the wire harness end; then use the multimeter to test the ground wire, and use the resistance file to test the wire harness end. The rest is the signal or feedback. Generally, the feedback signal requires a special instrument. to test it out.

　　16. You can tell the model of the ignition coil. I will help you to find out. The ignition coil is composed of the main coil, secondary coil, magnetic core, switch transistor, and other auxiliary components. The main coil is charged by the battery, and the secondary coil is discharged. The spark plug ignites, and the triode is responsible for the switch.

　　17. The charging time is controlled by the battery voltage and the engine speed to ensure that the energy of each charge is consistent. There are two types of ignition coils: 3-wire and 4-wire. The 3-wire is positive and negative of the power supply. The switch is controlled (ECU command), and there is one more wire for the 4-wire The ignition detection line can detect whether the spark plug is ignited and whether there is a discharge current in the secondary coil.

　　18. To put it simply, the ignition coil is a transformer, which increases the voltage from tens of volts to tens of thousands of volts, but the voltage input to the primary coil is provided by the electronic igniter.

　　19. 2: The main reason for the ignition coil burnout is the aging breakdown of the insulation layer or the damage to the switch transistor. The large spark plug gap leads to a large load on the main coil, high heat generation, and fast aging of the insulation layer, and a small spark plug gap leads to a large discharge current of the secondary coil. , heats up quickly, the insulation layer ages quickly, the assembled ignition coil may have poor insulation material durability, the internal resistance of the coil is large, heats up quickly, the quality of the triode is not high, and the service life will be shorter.

　　20. If it is always burned out, it will burn out soon after replacement, and why? ① Let’s look at the problem of the generator first. If the power generation is too high, the ignition coil will burn out if the load is too heavy. To rule out the quality problems of accessories, it is best to measure the power generation first.

　　21. ②The spark plug gap is too large, adjust the gap or replace the spark plug.

　　22. ③ The quality of gasoline is not good, try changing to higher-grade gasoline.

　　23. ④The compression ratio of the cylinder is wrong, adjust the compression ratio.

　　24. ⑤ If there is a program failure in the computer version, you can go to the repair shop to check the car with the computer and clear the error information.

　　25. If it doesn't work, there may be a problem with your car's transmission.

　　26. ⑥ The power supply voltage is unstable.

　　27. ⑦The high-voltage resistance is abnormal, replace the high-voltage line.

　　28. ⑧ There is a short circuit in the secondary.

　　29. ⑨The primary current of the ignition controller is too high and the ignition coil is overheated.

　　30, ⑩ is subject to high temperature and high-pressure waves, and the work is not good.

　　31. ⑾ There is a very small chance that it is the problem of the coil itself, you can try another brand.

　　32. ⑿ The integrated block of the igniter is not working properly.