Views:2 Author:Site Editor Publish Time: 2019-06-26 Origin:Site
Not everything, everything is perfect and no flaws. Also DC motor has its weaknesses. In order to better meet the needs of the majority of users, our company continues to improve the technical level of DC motors.
Let's take a look at it together:
The biggest weakness of the DC motor is the commutation performance of the current, which consumes more non-ferrous metals. And the cost is high.
The maintenance and repair in operation is also more troublesome. Therefore, the motor manufacturing industry is working hard to improve the speed regulation function of the AC motor, as a small number of replacement of DC motors.
However, in recent years, there has been a great pause in the application of thyristor rectification to replace DC motors. All rotating motor including DC motors are actually made according to the two fundamental criteria we know.
Firstly, the wire cutting flux generates an induced electromotive force; secondly, the current carrying conductor is subjected to electromagnetic force in the magnetic field.
Thus, from the standpoint of construction, any motor includes a magnetic field local and a circuit local.
It can be seen from the above principle that any motor exhibits the interaction of electricity and magnetism, which is the consistency of the two contradictory planes of electricity and magnetism.
In this chapter, we discuss the construction and mission principle of DC motors, which is to discuss how "magnetism" and "electricity" in DC motors interact, restrict each other, and represent the physical quantities and sights of the relationship between them (armature Electromotive force, electromagnetic torque, electromagnetic power, armature response, etc.).
Ritscher Motor (www.hkritscher.com) specializes in DC motors, brushless DC motors, AC motor, gear motor, small home appliance motor, synvhronous motor and stepper motor.