Industry news_News_Wenling Dachang Electrical Appliance Co.,Ltd.-Commutator,Commutator accessories

What are the types of AC asynchronous motors?

28

2021-09

What are the types of AC asynchronous motors?

There are two types of AC asynchronous motors: generally, the wound-type asynchronous motors used in factories with relatively large starting loads have slip rings on them, so electric (carbon) brushes (such as lifting, rolling steel motors, etc.) are used, and squirrel cages are used for light-load starting. Type induction motors do not have slip rings, so they do not need electric (carbon) brushes (such as electric fans, washing machines, air conditioners, refrigerators, etc.). DC motors have commutators, so electric (carbon) brushes are used. Hand drills are generally DC motors. The bench drill is an AC asynchronous induction motor; although the general toys and electric shavers are DC motors, due to the simple structure, in order to reduce the cost, a phosphorus-containing elastic brass sheet is used to replace the electric (carbon) brush replacement. The direction device is the wearing part of the electric shaver (the wire package inside the motor is generally not damaged).

What are the characteristics of the commutator?

28

2021-09

What are the characteristics of the commutator?

A magnetic signal converter (composed of a permanent magnet, a dry reed switch, and a transfer switch) is used to precisely control the commutation timing, and all parts that come into contact with the medium are made of stainless materials.

28

2021-09

What does the commutator do?

Generally speaking, DC motors only have commutators. The commutator is an important part of the DC motor. Its function is to convert the DC current passing through the brush into the alternating current in the winding or convert the alternating electromotive force in the winding to the DC electromotive force on the brush end. In addition, it should be understood that the structure of the motor commutator is a part of the DC permanent magnet series excitation motor in order to allow the motor to continue to roll. An important part of the DC motor, its function is to convert the DC current passing through the brush into the alternating current in the winding or convert the alternating electromotive force in the winding to the DC electromotive force on the brush end. It is suitable for engraving under the armature commutator slot of automobile motor, motorcycle starter motor, electric tool motor and micro motor. Put an armature into the positioning seat, the start switch will be automatically tightened, and the machine will automatically find the slot, Next engraving and indexing, until the next engraving is completed and the top tightening device is automatically released. Then, the operator removes the armature and puts another armature in the positioning seat, and starts the cycle again. Features The commutator is a DC permanent magnet A part of the serial excitation motor in order to allow the motor to continue to roll.

28

2021-09

Do commutators need to be numbered?

The commutator segments in the commutator are actually not numbered, but in order to borrow the bias wiring, and also for the needs of technical communication and recording, we number the commutator segments in the commutator, which are divided into 4 cases. 1. The number of the commutator segment when facing the right winding 2. The number of the commutator segment when offset to the right winding 3. The number of the commutator segment when facing the left winding 4. The number of the commutator segment when the winding is offset to the right Because the left-row winding is rare, the number of the commutator segment when facing the right-row winding and the number of the commutator segment when it is offset to the right-row winding are commonly used.

What is the operating procedure for the commutator?

28

2021-09

What is the operating procedure for the commutator?

1. It is strictly forbidden to wear gloves. 2. Before working, it is necessary to check whether the equipment and vacuuming device are in good condition. 3. The commutator must be firmly rolled when getting on the car, and the hand should not be close to the slot. 4. The commutator should be stacked neatly and smoothly, and should not be too high. 5. Clean the vacuuming device frequently to ensure effective vacuuming. That's what it said in 2, the rotor rotates, the carbon brush does not move, and then a pair of contact pieces that are in contact with each other are different, and then keep it running. Reverse energization for higher efficiency and power output. Components Each group of windings has at least one pair of contact pieces. If it is a multi-winding motor, it is also possible for multiple windings to share one contact piece. There are contact pieces and winding connections, and then there are carbon brushes on them. On the contrary, strengthening the maintenance of the power collection device department can detect and solve problems as soon as possible, which can avoid the occurrence of many accidents.

News

28

2021-09

What are the types of AC asynchronous motors?

28

2021-09

What are the characteristics of the commutator?

28

2021-09

What does the commutator do?

28

2021-09

Do commutators need to be numbered?

28

2021-09

What is the operating procedure for the commutator?

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