Rotor core of segmented skewed-pole motor and permanent magnet synchronous motor
A rotor core and oblique pole technology, applied in the direction of magnetic circuits, electric components, electrical components, etc., can solve the problem that the comprehensive vibration and noise reduction effect is not optimal, so as to achieve a good comprehensive vibration and noise reduction effect and suppress vibration Effects of noise, reduction of torque ripple and radial electromagnetic force
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[0038] Example 1
[0039] An embodiment of the present invention discloses a rotor core of a segmented skew-pole motor, such as figure 1 As shown, the rotor core includes a plurality of rotor core segments staggered by a preset angle 5 from each other, the rotor core segments are formed by laminating rotor punching sheets, and the rotor punching sheets are punched and formed; in the rotor core When the rotor core segments are staggered by a preset angle 5, the cogging effect caused by the slots on the stator is reduced.
[0040] Magnetic steel slots 1 are arranged in each of the rotor core segments along the circumferential direction, and magnetic steel can be arranged in the magnetic steel slots 1; the number of magnetic steel slots 1 is even, and two adjacent magnetic steel slots 1 are symmetrically arranged .
[0041] A plurality of axially penetrating auxiliary grooves are arranged on the outer circular surface of each of the rotor core segments, and the positions and / or...
Example Embodiment
[0063] Example 2
[0064] An embodiment of the present invention discloses a permanent magnet synchronous motor. The permanent magnet synchronous motor includes a stator and a rotor, and the rotor is provided with the above-mentioned rotor iron core. The permanent magnet synchronous motor in this embodiment has low vibration and noise and high NVH (Noise, Vibration, Harshness) quality.
[0065] To sum up, the present invention discloses a rotor core of a segmented inclined pole motor and a permanent magnet synchronous motor, comprising a plurality of rotor core segments staggered from each other by a preset angle, and the rotor core segments are formed by laminating rotor punching sheets; Magnetic steel slots are arranged in the circumferential direction in each rotor iron core segment, and magnetic steel can be arranged in the magnetic steel slot; the outer circular surface of each rotor iron core segment is provided with a number of auxiliary slots that penetrate in the axia...
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