Home
<p>With the development of automobile gasoline engines in the direction of high speed, high compression ratio, high power, low fuel consumption and low emissions, traditional<a href="https://www.hj-auto.com/" target="_blank"> ignition</a> devices have been unable to meet the requirements of use. The core components of the ignition device are the ignition <a href="https://www.hj-auto.com/" target="_blank">coil</a> and the switching device. When the energy of the <a href="https://www.hj-auto.com/" target="_blank">ignition coil</a> is increased, the spark plug can generate sparks with sufficient energy. This is the basic condition for the ignition device to adapt to the operation of modern engines. Then the following will give you a detailed introduction to the warning signs that the <a href="https://www.hj-auto.com/" rel="noopener noreferrer" target="_blank">ignition coil</a> is broken.</p><p><br></p><p><strong>What are the symptoms of the ignition coil broken</strong></p><p><br></p><p>One is that the body shakes significantly at idle speed. Observe the exhaust pipe mouth, the exhaust gas flow from the car is obviously intermittent, and at the same time, the exhaust pipe shakes badly, and the sound of "sudden" can be clearly heard.</p><p><br></p><p>The second is that during the driving process, when the speed is below 2500 rpm, the body has obvious jitter and acceleration is weak; when the speed exceeds 2500 rpm, the sense of jitter disappears.</p><p><br></p><p>The third is to open the engine cover, observe the running engine, and find that the engine has obvious jitter. This kind of jitter is obviously not a jitter under normal engine working conditions, and the jitter amplitude is very large.</p><p><br></p><p><strong>Failure phenomenon of </strong><a href="https://www.hj-auto.com/" rel="noopener noreferrer" target="_blank"><strong>ignition coil</strong></a></p><p><br></p><p>1. The short circuit of the ignition coil winding will make the voltage generated by the ignition coil too low, resulting in insufficient ignition energy, and will cause the spark plug electrode to become too dark (often polluted by carbon deposits).</p><p><br></p><p>2. The ignition coil is disconnected or grounded, no high-voltage electricity is generated, and ignition is impossible.</p><p><br></p><p>3. <a href="https://www.hj-auto.com/" rel="noopener noreferrer" target="_blank">Ignition coil</a> surface discharge refers to the phenomenon of discharge flashover on the outer surface of the ignition coil. The main cause of surface discharge is dirt and serious moisture on the surface. Surface discharge often occurs near the high-voltage lead-out screw, so a sheath is usually installed at the connection between the high-voltage lead-out screw and the high-voltage line. When surface discharge occurs, burn marks can often be seen at the discharge site. When the burning loss is slight, the burning loss can be removed and insulated.</p><p><br></p><p>4. The insulation of the ignition coil is aging. The reason is that the frequent ignition under high-temperature or high-speed and heavy-load working conditions after hot car makes the temperature of the <a href="https://www.hj-auto.com/" rel="noopener noreferrer" target="_blank">ignition coil</a> rise rapidly. The insulation aging of the ignition coil itself causes a discharge short circuit at high temperature and high voltage, which causes the actual turns ratio of the core winding and the secondary winding of the ignition coil to become smaller, which reduces the voltage value generated by the secondary winding and causes a sudden flameout 3. Failure that can't go up in speed. The working temperature of the ignition coil generally does not exceed 80 ° C, or the ignition coil will overheat. Overheating of the ignition coil will melt the insulation inside the ignition coil and accelerate the damage of the ignition coil.</p>
products
