Stator and rotor structure of permanent magnet motor
A permanent magnet motor, rotor structure technology, applied in the shape/style/structure of the magnetic circuit, the rotating parts of the magnetic circuit, the static parts of the magnetic circuit, etc. Large torque ripple, affecting the efficiency of permanent magnet motors, etc., to achieve the effect of reducing torque ripple, improving efficiency, and reducing heat generation
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[0022] In order to better understand the technical solutions of the present invention, detailed descriptions are given below through specific embodiments in conjunction with the accompanying drawings.
[0023] See figure 1 , The stator and rotor structure of a permanent magnet motor of the present invention includes stator and rotor cores 2, 6, wherein:
[0024] Stator core 2 (see figure 2 ) A number of stator slots 3 on the inner circle of the stator core 2 and stator teeth 14 between two adjacent stator slots 3 are provided; the stator teeth 14 are T-shaped to make the magnetic field lines smooth and uniform;
[0025] The slot bottom of the stator slot 3 is composed of a circular arc 31 and straight lines 32 connected to both ends of the circular arc 31;
[0026] The ratio of the diameter φ2 of the arc 31 of the stator slot 3 to the outer diameter φ1 of the stator core 2, that is, the best setting of φ2 / φ1 is 0.7~0.74;
[0027] The ratio between the difference between the outer diame...
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