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List of the catalog of this article:

• 1, Classification of automobile generator
• 2 、 How often should the car generator be replaced?
• 3, car Working principle of generators

Classification of automotive generators

The forms of automotive generators include: DC generators and alternators, divided into synchronous generators and asynchronous generators (rarely used); AC Generators can also be divided into single-phase generators and three-phase generators. There are many kinds of generators.

Car engines are machines that provide power for cars and are the heart of cars, affecting the dynamics, economy and environmental protection of cars.According to different power sources, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle motors and hybrid engines. A diesel engine is an engine that burns diesel to obtain energy release.

Automotive generators can be divided into DC generators and alternator generators. Because alternators are superior to DC generators in many aspects, DC generators have been eliminated.

The forms of automobile generators include: DC generators and alternators. Alternators are divided into synchronous generators and asynchronous generators (rarely used); alternators can also be divided into single-phase generators and three-phase generators. There are many kinds of generators.

How often should the car generator be replaced?

1. Generally, it takes about 500 yuan to replace the generator assembly, and it takes about half an hour.It takes about 2 hours to replace the carbon brush, because when replacing the carbon brush, it is necessary to check whether the internal components of the generator are broken, and once it is damaged, it should be repaired together.

2. Automobile generators can be used for 15-20 years under normal circumstances. The generator is an important power supply device for cars. After starting the engine, the generator will run. When the generator is running, it can charge the battery and supply power to the electronic equipment of the whole car.

3. The replacement cycle of the generator of a car is 15 to 20 years, depending on the specific frequency of use. Generally, there is no need to worry too much about its life. After all, many cars will consider renewal after driving for ten years, and even many people will change to a new car three or five years after buying a car, which has also given rise to a large number of second-hand car markets.

working principle of automobile generator

working principle of generator stator and rotor diagram of generator (1) The rotor coil must be energized to generate a magnetic field: the rotor coil is supplied through the F and E columns, and the rotor coil is energized to produce a magnetic field. ( 2) The engine work drives the rotor rotation: that is, the magnetic field rotates, the stator coil cuts the magnetic line and generates alternating current in the stator coil.

Automotive generators are also based on the principle of electromagnetic induction. When the external circuit electrates the excitation winding through the brush to generate a magnetic field, when the rotor rotates, the magnetic flux changes alternately in the stator winding. According to the principle of electromagnetic induction, alternating induced electromotive potential is generated in the three-phase winding of the stator.

The operating principle is: when the generator rotatesWhen direct current is connected to the sub-winding, a magnetic field is generated (called excitation: the battery supplies power to the magnetic field winding to excite it.

The working principle of the automobile alternator is to connect and assemble the stator and rotor of the generator by the bearing and the end cover, so that the rotor can rotate in the stator and make the movement of cutting the magnetic line, thus generating an induced electric potential, which is led out through the terminal and connected to the loop, and an electric current is generated.

According to the principle of electromagnetic induction, alternating induction electromotive potential is generated in the three-phase winding of the stator. If the stator winding is connected to the electrical load, the motor will output AC power, and the AC power will be converted into DC power through the rectifier bridge inside the generator and output from the output end. This is automobile AC power generation. The power generation principle of the machine.

The working principle of automobile generator is: a device made of electromagnetic induction and converted from kinetic energy into electrical energy.