What role does a car generator do? What does a car generator do

The car generator is the main power source of the car, and its function is to supply power to all electrical equipment (except the starter) when the engine is running normally (above idle), and at the same time charge the battery.

The car generator is the main power source of the car, and its function is to supply power to all electrical equipment (except the starter) when the engine is running normally (above idle), and at the same time charge the battery. Automotive generators can be divided into DC generators and alternators, and DC generators have been eliminated due to the fact that alternators are superior to DC generators in many ways.

The generator is the main power source of the car, and its function is to supply power to all electrical equipment (except the starter) when the engine is running normally, and at the same time charge the battery, the car generator can be divided into DC generator and alternator, because the performance of the alternator is better than the DC generator in many aspects, the DC generator has been eliminated. At present, the car uses a three-phase alternator with a diode rectifier circuit inside to rectify the alternating current into direct current, so the output of the automobile alternator is direct current. The alternator must be equipped with a voltage regulator, which controls the output voltage of the generator to keep it basically constant to meet the needs of automotive appliances.

The car generator is the main power source of the car, and its function is to supply power to all electrical equipment except the starter when the engine is running normally, and at the same time charge the battery.

Automatically save lishuiqing

The principle of the generator is that the coil cuts the magnetic induction wire to generate current, and the faster the coil speed, the greater the current and voltage. There is no permanent magnet in the automobile generator, it relies on the coil to generate the magnetic field, the rotor of the generator is the coil that produces the magnetic field, when the generator is running, the battery first energizes the rotor coil (called the excitation current) to generate a magnetic field, and then when the rotor rotates, it will generate a rotating magnetic field and generate induced electricity in the stator coil. When the engine speed rises and the voltage rises, the voltage regulator disconnects the current to the rotor, so that the magnetic field of the rotor gradually weakens and the voltage does not rise.

When the generator is normally generating electricity, in addition to supplying power to the electrical equipment, it also charges the battery to compensate for the power consumption of the battery at the time of starting, and ensures that the battery has enough power for the next start of the engine.

The main function of the car generator is to supply power to the battery. If the battery is powered, the wiring of the whole car can work normally, if the battery is not powered, then all the lights and sound or wipers. There is no way to use electricity. The car won't start.

What role does a car generator play --- generate electricity. Charge the battery and provide power for the on-board appliances.

It rotates with the engine to convert the kinetic energy generated by combustion into electrical energy. Recharge your car's battery at any time. It is used for all electrical equipment such as starter, spark plug, engine fan, indoor lamp, exterior headlight, fog lamp, width indicator lamp, various electronic sensors, air conditioning fan, compressor, audio and so on.

Car generator: The main power source for the car.

Electricity is one of the most important sources of energy in modern society. The generator is a mechanical equipment that converts other forms of energy into electrical energy, which is driven by a water turbine, steam turbine, diesel engine or other power machinery, and converts the energy generated by water flow, air flow, fuel combustion or atomic nucleus fission into mechanical energy and transmits it to the generator, which then converts the disturbance into electrical energy. Generators have a wide range of uses in industrial and agricultural production, national defense, science and technology, and daily life.

1.The role of the alternator.

The function of the car alternator: it is the main power source of the car, driven by the engine, it is working normally, it supplies power to all electrical equipment except the starter, and if there is excess energy, it is charged to the battery.

2.How an alternator works.

The electromagnetic induction principle of electric potential is induced by wire-cut magnetic field lines, and the mechanical energy of the prime mover is converted into electrical energy output. The synchronous generator consists of two parts: a stator and a rotor. The stator is the dismantling armature that emits electricity, and the rotor is the magnetic pole.

The stator is composed of an armature core, a three-phase winding with uniform bridge slag discharge, a base and an end cover. The rotor is usually of the hidden pole type, which is composed of an excitation winding, an iron core and shaft, a retaining ring, a central ring, etc. A direct current is fed through the excitation windings of the rotor, which produces a nearly sinusoidally distributed magnetic field (called the rotor magnetic field), whose effective excitation flux intersects the stationary armature windings.

When the rotor rotates, the magnetic field of the rotor rotates with it, and the magnetic field lines sequentially cut each phase winding of the stator, and the three-phase alternating current potential is induced in the three-phase stator winding. When the generator is operating with a symmetrical load, the three-phase armature current is combined to produce a rotating magnetic field with synchronous speed. The stator magnetic field and the rotor magnetic field interact to produce braking torque.

From steam turbines, water turbines, and gas turbines, the input mechanical torque overcomes the braking torque and works work.

3.Alternator wiring diagram.

There are many forms of generators, but their working principles are all based on the laws of electromagnetic induction and electromagnetic forces. Therefore, the general principle of its construction is to use appropriate magnetic and conductive materials to form magnetic circuits and circuits that carry out electromagnetic induction with each other, so as to generate electromagnetic power and achieve the purpose of energy conversion.

The classification of generators can be summarized as follows:

Generators DC generators, alternators, synchronous generators, asynchronous generators (rarely employed).

Alternators can also be divided into single-phase generators and three-phase generators.

It is the main power source of the car, driven by the engine, which supplies power to all electrical equipment except the starter during normal operation, and then charges the battery if there is excess energy.

Car alternator and car power.

It has little to do with performance, it is okay to change the generator that is not the genuine factory, but you must use the generator of the regular manufacturer, mainly depending on the power generation and stability, as well as the service life.

Generator starting and running operations:

1. For the unit that has been shut down for more than 24 hours, the test valve must be opened first, and the oil pump must be started. For units that have been shut down for more than 7 days, the insulation resistance of the exciter and the operating circuit should be measured.

Must meet the requirements.

2. Start the fuel pump, release the air in the pipeline, and observe whether the voltage is within the specified range. If it is normal, it can be officially started.

3. Check whether the voltage of the starting power supply meets the requirements. If the voltage is normal, Li Shu presses the start button and waits for the diesel engine.

Loosen as soon as it is in normal operation.

Generator refers to the mechanical equipment that converts other forms of energy into electrical energy, which is driven by water turbines, steam turbines, diesel engines or other power machinery, and converts the energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy and transmits it to the generator, which then converts it into electrical energy.

Working principle: diesel generator.

The diesel engine drives the generator to run, converting the energy of diesel into electricity.

In the cylinder of the diesel engine, the clean air filtered by the air filter is mixed with the high-pressure atomized diesel fuel charged and controlled by the fuel injector, and the volume is reduced and the temperature rises rapidly under the extrusion of the piston to reach the ignition point of the diesel. The diesel fuel is ignited, the gas mixture burns violently, and the volume expands rapidly, pushing the piston downward, which is called "work".

Gasoline generators.

The gasoline engine drives the generator to run and converts the energy of the gasoline into electricity.

In the cylinder of the steam racket front oil engine, the mixed gas burns violently, and the volume expands rapidly, pushing the piston down to do work.

Whether it is a diesel generator or a gasoline generator, each cylinder does its work in a certain order, and the thrust acting on the piston becomes the force that pushes the crankshaft to rotate through the connecting rod, thereby driving the crankshaft to rotate. The brushless synchronous alternator and the crankshaft of the power engine are installed with the Kaihe cover shaft, and the rotor of the generator can be driven by the rotation of the power engine, and the generator will output induced electromotive force by using the principle of 'electromagnetic induction', and the current can be generated through the closed load loop.

The function of the automobile generator is: when the engine is running normally, it supplies power to all electrical equipment except the starter, and at the same time charges the battery, and the generator is the main power source of the car. The automobile generator is composed of a rotor, a stator, a rectifier and an end cover, which can be divided into DC generator and alternator.

The working principle of the automobile generator is that when the external circuit energizes the excitation winding through the brush, a magnetic field will be generated, and the claw pole will be magnetized into the n pole and the S pole at the same time. The precautions for the use of automobile generators are:

1. Clean the dirt and dust on the surface of the generator frequently, and keep it clean and well ventilated; 2. Regularly check the fastening of the fasteners related to the generator, and tighten the screws of each part in time; 3. When the generator fails to generate electricity, it should be eliminated in time.