Rotor core, rotor, motor and compressor
A rotor iron core and rotor technology, applied in the field of compressors, can solve the problems of small motor direct-axis inductance value and quadrature-axis inductance value, high manufacturing and production difficulty, affecting motor performance, etc. The effect of large inductance value, improved performance, and ease of manufacture and production
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[0037] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present invention, but should not be understood as limiting the present invention.
[0038] This application is based on the inventor's discovery and understanding of the following facts and problems:
[0039] The permanent magnet embedded motor in the related technology has greater vibration and noise, especially the permanent magnet embedded motor with fractional slots. Due to the higher air gap harmonic content, the vibration and noise are often higher than the permanent magnets with integer slots. In-type motors are larger. When the permanent magnet embedded motor is used as the drive motor o...
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