Permanent magnet motor stator structure

Abstract

The invention relates to a permanent magnet motor stator structure which comprises a stator yoke part and a stator toothed ring, wherein the stator toothed ring comprises a ring base part and a plurality of stator teeth outwards extending from the radial direction of the ring base part, the stator yoke part is sleeved outside the stator toothed ring, and the inner surface of the stator yoke part is provided with fixed grooves which is same with the stator teeth in quantity and shape, the stator teeth are inserted in the fixed grooves and are mutually tightly contacted. Preferably, the tops of the stator teeth are provided with convex parts, the bottoms of the fixed grooves are provided with concave parts adapted to the convex parts in shapes, and the convex parts are inserted in the concave parts and are mutually tightly contacted. The stator yoke part is integrally formed, or is formed by connecting a plurality of sections. The ring base part is integrally formed or formed by connecting a plurality of sections. The permanent magnet motor stator structure has the advantages of being skilled in structure design and simple in structure, improving mechanical strength, lowering influence to a magnetic chain, and increasing the groove filling rate, thereby increasing the capacity and the efficiency of a motor, and the integral mechanical strength of the motor, and being suitable for being popularized and applied.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to the technical field of permanent magnet motors, and specifically refers to a permanent magnet motor stator structure. Background technique [0002] Permanent magnet motor stators have various structures and slot shapes. As far as stators are concerned, there are conventional one-piece blanked full-piece stators as well as individual teeth such as figure 1 shown) spliced ​​stator. In some fields, due to the requirements of the application occasion, the whole stator is not suitable, and the spliced ​​stator made of single teeth is used. However, due to the unavoidable low mechanical performance of the single-tooth spliced ​​stator, the whole stator is shaken, the mechanical strength is relatively poor, and the strength is not enough. The corresponding structure on the stator yoke is positioned and laminated to form a stator core or a section. Its characteristic is that the indiv...

AI Technical Summary

Problems solved by technology

However, due to the unavoidable low mechanical performance of the single-tooth spliced ​​stator, the whole stator is shaken, the mechanical strength is relatively poor, and the strength is not enough. It is positioned and laminated with the corresponding structure on the stator yoke to form a stator core or a section

Its characteristic is that the individual teeth are directly connected on the inner side (air gap end), and the performance of the motor efficiency and the overall mechanical strength of the motor after splicing is not satisfactory

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