How does the heat of dc motor control
The dc motor is run on an empty load to test whether the excitation current is rated. Just to make sure. If the excitation is high, there may be excess energy heating. The temperature of the motor casing is high; If overload runs, the motor also heats up. There's no way to do that. The overloaded operation; Either the cooling air duct or the cooling medium (ambient temperature is too high) will not work. To find a way, cool the cool breeze.
There are several reasons for the fever of dc motors: The current of the actuator is larger than that of the motor The speed of the motor is too fast The inertia of the motor and the torque of the positioning torque are high, so even the medium speed can be hot, but it does not affect the life of the motor. Motor demagnetization points in 130-200 ℃, so in 70-90 ℃ belongs to the normal phenomenon, as long as less than 130 ℃, generally do not have what problem, if you really feel overheated, the drive current set the speed of the motor about 70% of the rated current or reduce one
70-90 ℃ belongs to the normal phenomenon, as long as less than 130 ℃, generally do not have what problem, if you really feel overheated, the drive current set the speed of the motor about 70% of the rated current or reduce one Some. When there is no failure, it is normally warm. Of course, the normal heat won't be too hot. Normal fever: One, the coil has the resistance, the current flows through the loss power; The magnetic field of the iron core has a "hysteresis loop". The iron core and the vortex, the magnetic energy that turns the electric energy into a part of the magnetic energy that becomes electric current and then becomes heat energy; There is friction between the mechanical rotating parts, and a part of the kinetic energy of the transition continues to change to heat energy.
First of all, you want to let us know whether you have a brush or a brush before you can determine if your fever is likely to be caused by what
