Prefabricated stator punched piece, stator punched piece, stator and motor with same

Abstract

The invention discloses a prefabricated stator punched piece, a stator punched piece, a stator and a motor with the same. The prefabricated stator punched piece comprises a first punched piece section and a second punched piece section, the first punched piece section comprises a first linear yoke portion, multiple first tooth portions and a first tooth shoe portion, the first tooth portions are arranged along the length direction of the first linear yoke portion at intervals, the first tooth shoe portion is arranged at one end, away from the first linear yoke portion, of the first tooth portion, a first wire winding groove is limited and formed between each two adjacent first tooth portions, a first rotating yoke portion which is positioned in the corresponding first wire winding groove and can rotate to a position parallel to the first linear yoke portion relatively to the corresponding first tooth portion is arranged on each side of each first tooth portion, the first tooth portions extend into second wire winding grooves, second tooth portions extend into the first wire winding grooves, and the first rotating yoke portions and second rotating yoke portions are all positioned in between the first tooth portions and the second tooth portions adjacent to the first tooth portions. According to the prefabricated stator punched piece, utilization rate of sheets for manufacturing the prefabricated stator punched piece is increased greatly, so that cost is lowered.

Description

technical field [0001] The present invention relates to the technical field of motor manufacturing, in particular to a pre-stator punch and a stator punch, stator and motor having the same. Background technique [0002] In the related art, the stator processing of the motor generally adopts the overall blanking method, and then winds the wire on the machine. However, this manufacturing method not only makes the utilization rate of the iron core material low, the slot full rate of the motor winding slot is not high, but also due to the requirements of the machine winding, the slot opening needs to be larger, which affects the improvement of the motor performance. [0003] For the stator with strip-shaped split iron core process, the tooth shoe of the stator with smaller slot opening is longer. If the double-row stator hedging method is adopted, the width of the slot bottom is not enough, which is difficult to achieve; if the single-row punching method is adopted , the waste ...

AI Technical Summary

Problems solved by technology

However, this manufacturing method not only makes the utilization rate of the iron core material low, but also the slot fullness rate of the motor winding slot is not high, and due to the requirements of the machine winding, the slot opening needs to be large, which affects the improvement of the motor performance

[0003] For the manufacture of the stator by the strip-shaped split iron core process, the tooth shoe part of the stator with a smaller slot opening is longer. If the double-row stator hedging method is used, the width of the slot bottom is not enough and it is difficult to realize; if the single-row punching method is used , more waste is generated and the material utilization rate is lower

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