The reason for this phenomenon may be: the generator rectifier diode has a soft discharge, or the regulator is broken. Also check the generator's F line and turn off the ignition switch to see if it still works. If the fault cannot be eliminated, be sure to call professional technicians for repair.
Additionally, analysis of the causes of generator overheating: Every power supply has internal resistance. The greater the output current of the power supply, the lower the internal resistance. The internal resistance can be considered as a load connected in series in the circuit according to the power formula P=I^2R, that is, the power is proportional to the square of the current and proportional to the resistance. As long as the generator is in the state of producing electricity, its internal resistance will consume part of the energy and manifest it as heat.
The greater the power of a car generator, the generally lower the internal resistance and the less likely it is to generate heat under the same current output conditions. If a generator can normally produce electricity but generates significant heat, if you replace it with a much more powerful generator, then the heat will be much less.
Copper prices have skyrocketed in recent years and some generator factories use aluminum wire to produce them. Since the conductivity of aluminum is worse than that of copper, the internal resistance of aluminum wire generators is naturally higher than that. copper wire generators. The operating temperature is much higher than that of a copper wire generator.
Car generatorPossible reasons for fire insurance:
1. The powere generated is too high;
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2. There is a short circuit inside the generator;
3. The thicker wire connected to the generator is shorted;
4. little.
Inspection method: Remove the thicker wire from the back of the generator, install the insurance, and rub the newly removed wire against the terminal. Normally there will be no sparks. sparks, there is a short circuit in the generator.
How to maintain automobile generators
1. The generator poles are loose and must be tightened immediately. If the insulation is bad, they must be. removed and repaired.
2. Pay attention to the degree of wear of the bearings. If insufficient lubrication is noted, drip a few drops of engine oil from the mouth of the oil cup. otherwise it will affect the power transmission effect.
3. If the rectifier is clogged, you canUse fine emery cloth to polish it.
4. If the contact surface of the brush is uneven, you can smooth it with a fine emery cloth. When the spring elasticity is insufficient and the brush is excessively worn, new parts must be replaced. If the brush is too short and not damaged, a gasket can be inserted into the holder to bring it closer to the rectifier.
5. The brush holder insulation is damaged and new parts must be purchased.