Stator punching sheet of high-voltage permanent-magnet synchronous motor, winding stator and motor

Abstract

The invention discloses a stator punching sheet of a high-voltage permanent-magnet synchronous motor, a winding stator and the motor. A stator punching sheet body is in a round shape, 54 rectangular winding grooves are formed in the stator body and are uniformly distributed along a circumference, the widths W1 of the winding grooves are 13.7 millimeters, H1 of the winding grooves are 65 millimeters, a magnetic groove wedge slot is formed in a winding groove opening and is used for placing a magnetic groove wedge, 12 swallowtail positioning grooves are formed in an outer circle profile of the stator punching sheet body and are uniformly distributed along the circumference, the magnetic groove wedge slot is in a semi-circular shape, the radius R2 of the magnetic groove wedge slot is 1 millimeter, a fillet is arranged at a connection position of the magnetic groove wedge slot and the winding groove, the arc radius R3 is 0.2 millimeter, and the opening width W2 of the magnetic groove wedgeslot is 15.7 millimeters. The semi-circular magnetic groove wedge is employed, the air gap magnetic field distribution is improved, and the vibration and the noise of the motor are reduced; and an inner circle and an outer circle of the stator punching sheet and the winding groove are reasonable in design, the iron core loss of the motor is reduced, and the running performance of the motor is improved.

Description

technical field [0001] The invention relates to the field of motor manufacturing, and more specifically relates to a high-voltage permanent-magnet synchronous motor stator stamping and winding stator and motor, belonging to the field of motors. Background technique [0002] The electric motor is a tool for energy conversion, which is mainly composed of a stator and a rotor. The stator is mainly composed of a winding coil and a stator core, and the stator core is formed by laminating many stator punches. The stator punch is an important part of the motor, and its inner and outer diameter, winding slot size and number will have a direct impact on the performance of the motor. [0003] Under normal circumstances, there is no magnetic groove wedge groove on the stator punching plate of the high-voltage permanent magnet motor, and the integer winding groove is used at the same time with a wide groove, which results in uneven distribution of the air gap magnetic field of the moto...

AI Technical Summary

Problems solved by technology

[0003] Under normal circumstances, there is no magnetic groove wedge groove on the stator punching plate of the high-voltage permanent magnet motor, and the integer winding groove is used at the same time with a wide groove, which results in uneven distribution of the air gap magnetic field of the motor, and relatively high cogging torque and core loss. Large, the temperature rise of the motor is high during rated operation, which seriously affects the operation performance of the motor

[0004] Based on the above reasons, it is necessary to improve the current high-voltage permanent magnet synchronous motor due to the uneven distribution of the air gap magnetic field, large cogging torque and large core loss, etc., resulting in large motor noise and vibration, and high core loss.

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