Outer-tooth and inner-stator structure of motor and manufacturing method of outer-tooth and inner-stator structure

A manufacturing method and technology of inner stator, applied in the manufacture of stator/rotor body, magnetic circuit shape/style/structure, magnetic circuit static parts, etc., can solve the problem of low slot full rate, insufficient slot width, waste, etc. problem, to achieve the effect of simple manufacturing method, low manufacturing cost and tightness guarantee
CN106208434AInactive Publication Date: 2016-12-07PHASE IND DESIGN NINGBO
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
PHASE IND DESIGN NINGBO
Publication Date
2016-12-07
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to an outer-tooth and inner-stator structure of a motor and a manufacturing method of the outer-tooth and inner-stator structure. The stator structure comprises silicon steel sheet stacks which are formed by sequentially superposing a plurality of silicon steel sheets, wherein the plurality of silicon steel sheet stacks are sequentially superposed to form stator splicing groups; the plurality of stator splicing groups are transversely butted in sequence to form an annular stator; each silicon steel sheet comprises an arc-shaped base part and one or more outer tooth parts; the outer tooth parts are uniformly arranged at the outer side of each arc-shaped base part; and the adjacent upper and lower silicon steel sheet stacks in the stator splicing groups are arranged in a manner that two ends are in opposite directions. The stator manufacturing method is simple, reliable and low in cost. The stator is assembled in a splicing manner, so that the utilization rate of the sheets can be greatly improved; processing can also be carried out by using a low-tonnage punch press; the cost of equipment is reduced; the automation degree is improved; each sub-part can also be wound and then assembled; and the outer-tooth and inner-stator structure is not limited by a notch width and is suitable for the stator with various requirements.
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Description

technical field

[0001] The invention relates to the field of motor structure, in particular to an external tooth internal stator structure of a motor and a manufacturing method thereof. Background technique

[0002] Whether it is a permanent magnet brushless DC motor driven by a square wave or a permanent magnet AC servo motor driven by a sine wave, the structure of the motor body is basically the same or similar. According to the position of the fixed parts, it is divided into inner stator or outer stator, inner stator The winding teeth on the outer stator are arranged on the outer side, and the corresponding rotor is also on the outer side, while the winding teeth on the outer stator are arranged on the inner side, and the corresponding rotor is also arranged on the inner side, whether it is an inner stator or an outer stator, They are all ring-shaped structures. The existing stators are all stamped and formed in one piece. When stamping, larger plates are used for stampin...

Claims

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