High-speed electric machine electromagnetism structure for air compressor
A technology of electromagnetic structure and high-speed motor, which is applied in the shape/pattern/structure of magnetic circuit, electromechanical device, shape/pattern/structure of winding conductor, etc. Achieve high speed, high power density and reduce harmonic loss
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[0038] Example 1:
[0039] Such as Figure 1-5 As shown, an electromagnetic structure of a high-speed motor for an air compressor includes a stator core 1, a stator winding set on the stator core 1, a rotor core 3, and a permanent clamp embedded on the surface of the rotor core 3. The magnet 4, the stator core 1 is evenly distributed with multiple rows of stator slots along the circumference, the stator winding 2 is arranged in the stator slots by the connection of three layers of low-harmonic concentric windings, and the surface of the rotor core 3 is evenly distributed along the circumference. A wedge-shaped slot, a wedge-shaped arm 5 is provided between two adjacent wedge-shaped slots. The wedge-shaped arm 5 is provided with an air magnetic isolation hole 6 for increasing the amplitude of the air gap magnetic density. The permanent magnet 4 is clamped in the wedge-shaped slot to work When the rotor core 3 is running at a high speed, the wedge arm 5 generates radial pressure o...
Example Embodiment
[0043] Example 2:
[0044] In this embodiment, there are a total of 6 wedge-shaped grooves, which are arranged on the surface of the rotor core 3 in the axial direction. The permanent magnet 4 is clamped in the wedge-shaped groove in the axial direction, and the groove angle of the wedge-shaped groove is 50°. The air magnetic isolation hole is a T-shaped air magnetic isolation hole, and the area of the air magnetic isolation hole is 1 / 2 of the area of the wedge-shaped arm. The rest is the same as in Example 1.
Example Embodiment
[0045] Example 3:
[0046] In this embodiment, there are a total of 8 wedge-shaped grooves, which are arranged on the surface of the rotor core 3 in the axial direction. The permanent magnet 4 is clamped in the wedge-shaped groove in the axial direction, and the groove angle of the wedge-shaped groove is 60°. The air isolation hole is a T-shaped air isolation hole, and the area of the air isolation hole is 1 / 3 of the area of the wedge-shaped arm. The rest is the same as in Example 1.
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