The commutator manufacturer introduces the function of commutator

The commutator manufacturer introduces that the commutator is an important part on the armature of DC motor, DC generator and AC commutator motor. It plays a reversing role when the motor rotates, and is the part that allows the motor to continue to rotate& nbsp;

The commutator consists of a group of copper plates and a group of spring brushes. The copper plates are fixed on the circumference of the rotating motor or rotor, and the spring brushes are fixed on the motor bracket. Two or more enterprise fixed brushes are connected to the external control circuit, both as the current source of a motor and as the load of a generator

1、 The commutator manufacturer introduces the function of commutator

Commutators are cylindrical or circular structures composed of many copper sheets (commutators). Copper sheet is insulated by mica or other insulating materials. Each copper strip is connected to the armature winding element. When the armature rotates, the copper sheet contacts the fixed carbon brush in turn. In a DC generator, the alternating current in the armature winding is converted into direct current between the brushes through brushes and commutators. When the commutating blades connected at both ends of each armature winding element pass through the carbon brush, this process of changing the direction or size of current is called commutation. In the process of commutation, if the contact between the carbon brush and the commutator surface is poor, the contact surface between the carbon brush and the commutator blade may affect the appearance of some sparks, or even cause continuous ring fire, resulting in the burning out of a winding. In AC commutator motor, the function of commutator is to make the frequency of AC and current between brushes meet the requirements of social work ability

2、 Commutator manufacturer introduces the application range of commutator

The commutator is used in the fields of electric tools, household appliances, automobile and motorcycle motors, automobile generators and gasoline generators. It can be mainly used to control the development of DC motors, DC generators, many DC motors and national general motors. In a motor, the commutator applies current to the windings. Rotate the current research direction in one winding by reversing every half turn to generate a socially stable rotating force (torque). In the generator, the commutator receives the current generated in the winding, reverses the direction of the current every half turn, and acts as a mechanical rectifier to convert the alternating current from the winding to one-way direct current in the external load circuit

Commutator efficiency research is relatively cheap, and regular maintenance, such as replacement of brushes, is also required. Therefore, the use of commutating motors in China is decreasing, and AC motors are replaced by alternating current (AC) motors, as well as brushless DC system motors with semiconductor switches used by enterprises in China in recent years

3、 Analysis of Commutator Failure by Commutator Manufacturers

1. Turn on the power and the indicator light goes out

2. Method: Check the working machine and replace a component

3. The gas pressure cannot be adjusted in advance

4. Method: Check whether the wiring mode is correct and replace it

5. The main switch fuse is broken

Method: Check and replace

Commutators mainly include hook type, slot type, flat type and other specifications. It is made of raw materials refined by Chinese import enterprises. Its production performance can reach the advanced technical level of the international community, and it is widely used in electric tools, household appliances, automobiles, motorcycle motors and other fields; There are many different specifications and models of collector ring, carbon brush holder and terminal block

It is used in automobile generator, gasoline generator and other fields. The commutator plays a rectification role, which is to make the current in the armature winding develop and change alternately, so as to ensure that the direction of the electromagnetic torque of the system remains unchanged

In the generator, the commutator converts the AC potential in the element into the DC potential between the brushes, while in the motor, the commutator converts the applied DC current into the AC current in the element, thus producing a torque in a constant direction