Rotor punching sheet, rotor of motor and compressor
By designing air gap slots on the rotor laminations to form magnetic bridges, the problems of insufficient mechanical strength of the rotor core and leakage flux of the permanent magnets were solved, achieving a rotor design with low wind resistance and high strength.
Patent Information
- Application Number
- CN202423196776.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In the existing technology, if the width of the magnetic isolation bridge of the rotor core is too small, the mechanical strength will be insufficient; if the width is too large, the leakage flux of the permanent magnet will be increased, which will affect the utilization rate of the rotor and the wind resistance.
Design a rotor lamination with air gap slots at both ends of the magnet slot to form first and second magnetic isolation bridges. The first magnetic isolation bridge is distributed tangentially along the outer edge of the rotor lamination, and the second magnetic isolation bridge forms an angle with the bisector of the magnet slot and is arranged at an angle. The width L1+L2≤1.5mm, L1 and L2 are both ≥0.25mm, and the angle is 5°≤A≤15°.
It reduces the wind resistance of the rotor during rotation, improves the structural strength of the rotor, reduces the leakage flux of the permanent magnet, and enhances the mechanical strength of the rotor.
Smart Images
Figure CN223797992U_ABST