DigiPlus

List of the catalog of this article:

• 1. working principle of automobile generator
• 2,DigiPlus CarClassification of generators
• 3, Common faults and solutions of automobile generators
• 4, What is the working principle of the car generator?

working principle of automobile generator

1. Working principle of generator stator and rotor diagram of generator (1) The rotor coil must be energized to generate a magnetic field: power is supplied to the rotor coil through the F and E junction columns, and the rotor wire The 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.

2. Automobile 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.

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

4. The operating principle is that when direct current is connected to the rotor winding of the generator, a magnetic field (called excitation) is generated (called excitation: the battery supplies power to the magnetic field winding for other excitation.

5. 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, which is the car AC The power generation principle of the generator.

classification of automobile generator

1. Automobile engines are machines that provide power for cars, It is the heart of the car, affecting the power, economy and environmental protection of the car. 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.

2. The forms of automobile generators include: DC generators and alternators, which 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.

3. Automobile 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.

Common faults and solutions of automobile generators

The following is a list of specific elimination plans for each failure: the charging current is too small: when the battery storage capacity is insufficient and the engine speed increases, the ammeter refers to The needle indicates that the charging current is small, indicating that the charging current is too small.

Troubleshooting: Find the leak, re-seal or replace the phase parts. Troubleshooting of the fuel injector: clean the fuel injector, check the fuel injection volume of each fuel injector and confirm that there is no blockage or dripping.

High-speed electric shock sintering, contact cauterization, and adjustment of the resistance segment at the same time; (2) The voltage regulator of the transistor voltage regulator is short-circuited or the power triode is open; the grounding method of the regulator does not match the generator. The troubleshooting method steps are as follows: 1) Check the tightness of the belt and the connection of the wire (looseness or error) in turn.

should respond; the battery is seriously out of power in the later stage, and the starter cannot work at startup. [ Reasons why automobile generators do not generate electricity] Common reasons why alternators do not generate electricity: (1) The diode is penerced and cannot be rectifyed.(2) The electric card is in the grip, and the generator cannot generate electricity due to non-excitation.

The unstable voltage of automobile generators has the following analysis and solutions. Analysis of the causes of voltage instability of automobile generators. The contact point between the generator stator and the carbon brush is dirty, resulting in the instability of the excitation voltage, and the output of alternating current is also unstable.

What is the working principle of the car generator?

1. Automobile 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.

2. The gasoline engine drives the generator to run and converts the energy of gasoline into electricity.In the cylinder of the gasoline engine, the mixed gas burns violently, and the volume expands rapidly, pushing the piston down to work.

3. The working principle of the automobile generator is that when the external circuit energizes the excitation winding through the brush, a magnetic field is generated, so that the claw pole is magnetized into n poles and s poles. When the rotor rotates, the magnetic flux changes alternately in the stator winding. According to the principle of electromagnetic induction, it can be seen that alternating induced electromotive potential is generated in the three-phase winding of the stator.