Daily Archives: 2024年5月16日

Why does the motor rotor need to use inclined slots?

In order to improve electrical machinery Quality, in recent years, motor noise has been included as one of the quality assessment indicators, especially for situations where the operating environment of the motor is in close contact with people, motor noise has become a very important assessment requirement. In order to control the noise of asynchronous motors, in addition to selecting appropriate stator and rotor slot combinations during design, inclined slots can be used to reduce the electromagnetic noise of the motor. However, further experimental verification is needed to determine the appropriate slope of the groove. In general, the inclination of the rotor slot of an asynchronous motor can be taken as one stator tooth pitch, which can basically meet the requirements. But in order to further improve motor noise, it is necessary to explore the optimal slot slope, which requires a lot of calculation and

Methods for controlling motor temperature rise

The temperature rise of the motor stator winding is positively correlated with the current. As the current increases, the temperature rise naturally also increases, and the increase is even greater. In addition to the influence of current, temperature rise is also related to other related factors, such as process fluctuations and quality control during production and processing. To avoid possible non conformities caused by process fluctuations and other factors, a certain margin should be left in product design. The technical specifications for motor products specify the rated voltage and frequency range of the motor. If the voltage exceeds this range, the motor will not be able to operate normally. Therefore, it is necessary to ensure that the corresponding power grid parameters of the motor meet the normal operating conditions of the motor. The most direct impact is the voltage on the motor winding, especially for