LOW-NOISE ELECTRIC MOTOR Russian patent published in 2018 - IPC H02K3/28 

FIELD: electrical equipment.

SUBSTANCE: invention relates to the electrical equipment and can be used in alternating current electric motors, as part of the traction electric drive and actuators. In the disclosed low-noise electric motor, the windings magnetic fields summation principle is used. For this, the combined windings are located in the motor common grooves. Their magnetic induction vectors are summed up with the common field formation. This enables the spatial shift presence between two primary windings with consecutive windings phases matched connection. Resulting magnetic field is determined by the sum of magnetic fields created by the windings located in the stator common grooves and having spatial shift between themselves, determined by the number of mutual spatial displacement grooves, close to the windings consecutive inclusion.

EFFECT: technical result consists in improving of the generated magnetic field distribution quality, and the corresponding motor vibration and noise reduction while maintaining high efficiency.

1 cl, 4 dwg