How to control the heating of DC geared motor

hit count: Updated: 2019-12-03 17:28:12 [ close ] share:

    The DC geared motor will generate heat during use. Some heat is normal, but some users feel that there is something wrong with the heat. Let ’s take a look at the causes of the heat.

    It is normal for DC geared motors to heat up to 70-90 ° C. As long as the temperature is lower than 130 ° C, there is usually no problem. If you really feel overheating, set the drive current to about 70% of the rated current of the motor or reduce the speed of the motor. When there is no failure, it will also heat normally. Of course, the normal heating temperature will not be too high.

    First, the coil has resistance, and the current flows through the loss power;

    Second, the magnetic field of the iron core has a "hysteresis loop", and a part of the magnetic energy converted from electrical energy continues to be converted into thermal energy;

    Third, the iron core also has eddy currents, and a part of the magnetic energy converted from electrical energy is turned into electric current and then into thermal energy;

    Fourth, there is friction between the rotating parts of the machine, and a part of the kinetic energy converted from electrical energy continues to be converted into thermal energy.

    The above is the main content of why the DC geared motor generates heat. Only by understanding the cause of the heat can we effectively control the normal operation of the motor.

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