Why does the stepper motor of the advertising engraving machine heat up?

The reason for the heating of the stepper motor in the advertising engraving machine

1. For various stepping motors, the interior is composed of iron cores and winding coils. The winding has resistance, and energization will produce loss, and the loss is proportional to the square of the resistance and the current. Stepper motors generally pursue positioning accuracy and torque output. The efficiency is relatively low, the current is generally relatively large, and the harmonic component is high, and the frequency of current alternating changes with the speed. Therefore, stepper motors generally have heating conditions, and the situation is more common than normal. The AC motor is serious.

2. The reasonable range of stepper motor heating The degree to which the motor heating is allowed depends mainly on the internal insulation level of the motor. The internal insulation performance will be destroyed at high temperature (above 130 degrees). Therefore, as long as the interior does not exceed 130 degrees, the motor will not be damaged, and the surface temperature of the stepper motor is normal at 70-80 degrees.

3. Although the heating of the motor generally does not affect the life of the motor, it is unnecessary for most customers to pay attention to it. However, severe fever can have some negative effects. If the thermal expansion coefficient of each part of the motor is different, the change of structural stress and the slight change of the internal air gap will affect the dynamic response of the motor, and it will be easy to lose step at high speed. Therefore, the heating of the motor of the advertising engraving machine should be controlled as necessary.

Superstar CNC recommends products for you：CX-1325 adverting wood router machinery