Stator profiled hybrid lamination structure and motor thereof

By designing a stator with a non-standard hybrid laminated structure, the problems of high cost of motor magnetic circuit design and reduced torque performance in the low-speed range in traditional methods are solved. This achieves an improvement in the motor's maximum speed and high-speed performance, while maintaining stability and low noise during low-speed operation.

CN121602650BActive Publication Date: 2026-03-31TAIZHOU JINYU ELECTROMECHANICAL
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Patent Information

Application Number
CN202610125244.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-01-29
Publication Date
2026-03-31
Estimated Expiration
2046-01-29

AI Technical Summary

Technical Problem

Traditional methods for increasing the maximum speed of permanent magnet synchronous motors require redesigning the motor's magnetic circuit, which leads to increased costs and decreased torque performance in the low-speed range, and makes it difficult to widen the weak magnetic region.

Method used

The stator adopts a non-standard hybrid lamination structure. Through the interlocking and stepped design of axial and radial lamination groups, the stator salient pole effect is enhanced, the magnetic field line distribution in the leakage magnetic region is modulated, and the weak magnetic region is expanded.

Benefits of technology

Without increasing costs, it significantly improves the maximum speed and high-speed performance of the motor, while maintaining the smoothness and low noise characteristics of low-speed operation, widening the field weakening range, and improving the external characteristic curve of the motor.

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Abstract

The present application relates to a kind of stator profiled mixed lamination structure and motor thereof, including by the first stator sheet of multiple pieces Axially laminated and formed radial lamination group, the radial lamination group is annular, the radial lamination group includes multiple stator teeth and the stator yoke at the tail of the stator tooth, further including by the second stator sheet of multiple pieces Radially laminated and formed axial lamination group, the middle part of the stator yoke is provided with slot, the axial lamination group is inserted into the slot, the second stator sheet is perpendicular to the first stator sheet, the axial lamination group is formed in radial along the limit of the magnetic flux line from circumferential to radial Staircase shape.The axial lamination group is formed in radial along the limit of the magnetic flux line from circumferential to radial in the present application Staircase shape, modulates the magnetic force line distribution of leakage magnetic region, to enhance the salient pole effect of stator, enlarge the weak magnetic region of motor and promote the highest speed.
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