In the running process of the motor, there are two heating sources, one is the stator winding, one is the rotor; The heat generated by the three-phase asynchronous motor manufacturer's design, as well as to the surrounding medium outward radiation and conduction, which is the heat conduction of the motor heat dissipation. Below and Senli motor Xiaobian together to understand the next.
If the motor heat dissipation is indicated by heat conduction, it is not enough, such as the torque motor, we will be equipped with a cooling fan, which can achieve the effect of forced ventilation and heat dissipation. Image closureThree-phase asynchronous motorThe amount of air generated by the external fan can be dissipated through the wind hood and frame, guiding the cold air to blow into the surface of the motor housing, taking away the heat generated by various losses of the motor, and achieving an effect of balancing heat and heat dissipation.
In the actual application process, the fan will be matched with the wind hood, which can not be replaced at will.
Three-phase asynchronous motorWhen running, the bearing system will produce different degrees of heat, and the stator winding, rotor part heat is different, there is a mutual heat exchange; The heat shown in the winding and rotor part will cause its temperature to be higher; If the temperature of the bearing system is high for some reason, the temperature rise of the motor winding will also increase.
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