Reasonable scope of step motor heating and stepper motor heating with the speed change: motor heating allows to what extent, mainly depends on the internal motor insulation class. Internal insulation at high temperature (More than 130 degrees)Will be destroyed. So as long as within no more than 130 degrees, the motor will not damage, while the surface temperature under 90 degrees. So, step motor surface temperature in 70 -80 degrees are normal. Simple useful point thermometers, temperature measurement method can also be roughly judge: can touch 1 - by handMore than 2 seconds, no more than 60 degrees; Can only touch with the hand, around 70 -80 degrees; Drop a few drops of water gasification quickly, more than 90 degrees. Using constant current drive technology, stepping motor under static and low speed, the current will remain relatively constant, to maintain a constant torque output. High speed to a certain extent, the motor internal counter potential, current will gradually decrease, the moment will decline. Therefore, because of the copper loss of fever is related to the speed of the story. Generally high fever when static and low speed, high speed low fever. But the iron losses (Although the smaller percentage)Situation does not change, but the motor of the fever is the sum of the two, so the above is just normally. The effects of step motor heating: electric heating are usually will not affect the life of the motor, for most customers don't need to ignore. However, serious fever can bring some negative impacts. Internal parts such as motor thermal expansion coefficient of different lead to the change of structural stress and internal air gap of tiny change, affects the dynamic response of the motor, high speed will be easy to out of step. And as some situation does not allow excessive heating of the motor, such as medical equipment and high-precision test equipment, etc. So the control of the heating of the motor should be necessary. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
