Permanent magnet motor stator structure

A technology of stator structure and permanent magnet motor, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit static parts, etc., can solve the problems of motor efficiency, mechanical overall strength, unsatisfactory performance, low mechanical performance, poor mechanical strength, etc. , to achieve the effect of ingenious design, simple structure and improved mechanical strength
CN102801231AInactive Publication Date: 2012-11-28SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
Publication Date
2012-11-28
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Claims

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