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Zhejiang Xian Wei Electric Co., Ltd

NEWS

Where is the permanent magnet DC motor used?

Where is the permanent magnet DC motor used?

Permanent magnet DC motors are miniature motors used in a number of different industry sectors. With the development of the times, the application of permanent magnet DC motors will be more, and many occasions that originally used AC motors have been replaced by permanent magnet DC motors. Especially after the emergence of permanent magnet brushless motors, the number of permanent magnet DC motors produced is constantly rising. China produces more than billions of permanent magnet DC motors every year, and countless manufacturers produce permanent magnet DC motors.

2024-05-08

08

2024-05

Is it necessary to absorb the surge voltage in the wiring diagram of the circuit product?

Is it necessary to absorb the surge voltage in the wiring diagram of the circuit product?

The surge voltage absorption circuit can suppress the spark (Spark) generated when the relay contact is ON/OFF, so as to extend the life of the contact.

2024-05-08

08

2024-05

Routine Maintenance and Troubleshooting of Electromagnetic Speed Regulating Motor

Routine Maintenance and Troubleshooting of Electromagnetic Speed Regulating Motor

Routine Maintenance of Electromagnetic Speed Regulating Motor (1) Daily inspection and spot check of the equipment, check the heating of the motor, pay attention to the vibration of the motor and the electromagnetic slip clutch, and record the running current and voltage, and deal with the problems found in time.

2024-05-23

23

2024-05

The structure and working principle of electromagnetic speed regulating motor

The structure and working principle of electromagnetic speed regulating motor

Structure and working principle of electromagnetic speed regulation asynchronous motor The electromagnetic speed regulation asynchronous motor is composed of three parts: ordinary squirrel-cage asynchronous motor, electromagnetic slip clutch and electrical control device. The asynchronous motor is used as the prime mover. When it rotates, it drives the armature of the clutch to rotate together. The electrical control device is a device that provides the excitation current of the excitation coil of the slip clutch. This paper mainly introduces the electromagnetic slip clutch, which includes three parts: armature, magnetic pole and excitation coil. The armature is a cylindrical structure made of cast steel, which is connected with the rotating shaft of a squirrel-cage asynchronous motor, commonly known as the active part; the magnetic pole is made of a claw-shaped structure and is installed on the load shaft, commonly known as the driven part. There is no mechanical connection between the active part and the driven part. When the excitation coil through the current generated magnetic field, claw structure will form many pairs of magnetic poles. At this time, if the armature is dragged to rotate by the squirrel-cage asynchronous motor, then it will cut the magnetic field interaction and generate torque, so the magnetic poles of the driven part will rotate with the active part of the armature, and the speed of the former is lower than the latter. Because only when the armature and the magnetic field have relative movement, the armature can cut the magnetic lines of force. The poles rotate with the armature. There is no essential difference between the principle and the principle that the rotor of an ordinary asynchronous motor moves with the rotating magnetic field of the stator winding. The difference is that the rotating magnetic field of the asynchronous motor is generated by the three-phase alternating current in the stator winding, and the magnetic field of the electromagnetic slip clutch is generated by the excitation coil. The DC current is generated, and the rotating magnetic field is played by the rotation of the armature.

2024-05-23

23

2024-05

The magnetic strength of the electromagnet is related to what factors

The magnetic strength of the electromagnet is related to what factors

The magnetic strength of the electromagnet is related to many aspects. The strength is positively related to the size of the current and the number of turns of the coil. It also has a great relationship with whether it is an iron core. In other words, when the current through the electromagnet When it is the same, the more turns of the electromagnet coil, the stronger the magnetism of the electromagnet. When the number of turns of the electromagnet is the same, the greater the current passing through, the greater the magnetism of the electromagnet.

2024-05-23

23

2024-05

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