What Are The Parts Of The Micro DC Motor Loss?
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(1) Excitation loss. It refers to the resistance loss when the excitation of the rotor passes through the pole winding and the contact loss between the brush and the slip ring. The excitation loss is mainly related in value to the square of the excitation current.
(2) Bearing loss. The bearing loss of the motor mainly includes the friction loss of the thrust bearing, the oil flow disturbance loss in the oil groove, and the friction loss of the guide bearing.
(3) Ventilation loss. It refers to the energy loss of the rotor surface and the fan to overcome the air resistance friction in the motor ventilation and cooling system, also known as the wind friction loss.
(4) Copper loss. Refers to the resistance loss caused by the load current of the motor passing through the stator winding. The value of copper loss mainly depends on the square of the generator load current, and it is also related to factors such as the size of the iron core and the rated voltage.
(5) Iron loss. It refers to the eddy current loss and hysteresis loss caused by friction caused by the eddy current loss and friction of the stator core of the micro motor under the action of the main magnetic flux. Among them, the hysteresis loss is the iron loss caused by the hysteresis phenomenon in the magnetization process of the DC motor core. The size of this loss is proportional to the size of the area surrounded by the hysteresis loop of the material (the size of the iron loss Mainly depends on the square of the magnetic flux density and the frequency.)
(6) Additional losses mainly include additional copper losses caused by the skin effect of the current in the stator windings of the micromotor, pulsation losses caused by teeth and slots, and iron losses caused by high-order harmonic flux on the surfaces of the stator and rotor.
The above are the six most common parts of the micro DC motor that are easy to lose, and I hope today's explanation can help you solve your troubles. For more information, please contact us and reply to your inquiry within 24 hours.
