Motor inner stator and its manufacturing process

Abstract

A motor inner stator includes an iron core and a winding and is characterized in that: the iron core is composed of two half-iron-cores in a splicing-inserting manner; each half-iron-core is provided with a cylindrical hub unit; a shaft hole is arranged in a center of the cylindrical hub unit; a plurality of reel spokes are uniformly distributed at intervals on a circumferential surface of the cylindrical hub unit; an outer rim unit is arranged outside the reel spokes; and the winding is arranged around the reel spokes and fills space which is formed by enclosing of the cylindrical hub unit, the reel spokes and the outer rim after the splicing-inserting of the two half-iron-cores. The manufacturing process comprises the following steps of: placing the half-iron-cores on a winding device, starting the winding machine, winding around the reel spokes of the half-iron-cores, and stopping winding when the wire covers the space formed by the enclosing of the outer rim, the reel spokes and the cylindrical hub unit. The advantages that the motor performance is improved, the winding is simple, the full-slot rate is high, the winding cost is low are realized.

Description

technical field [0001] The invention relates to an inner stator of a motor capable of realizing mechanized winding and a manufacturing process thereof. Background technique [0002] The traditional motor inner stator includes iron core and winding. The iron core is formed by stacking and riveting punching sheets, and the punching sheets are composed of an annular hub, four spokes evenly distributed on the annular hub, and a wheel rim arranged at the outer end of the spokes. Since the wire is wound on the core to form a winding, there are gaps between the rims on the four spokes to leave enough space for the probe of the winding machine to pass through. The state of the core before and after winding is as follows: figure 1 , figure 2 shown. [0003] The defects of leaving a gap between the rims are: 1. Too much gap between the rims will cause the torque ripple of the motor and affect the performance of the motor; 2. Too small a gap between the rims will cause the winding...

AI Technical Summary

Problems solved by technology

[0003] The defects of leaving a gap between the rims are: 1. Too much gap between the rims will cause the torque ripple of the motor and affect the performance of the motor; 2. Too small a gap between the rims will cause the winding machine to It is difficult for the probe or even the wire to enter between the two rims, and the winding work is difficult; 3. During the winding process, the probe of the winding machine needs to extend into the gap between the rims. The full slot rate of the sub is low; 4. The probe winding action is complicated, and the winding machine required to realize the winding action has a complex structure, expensive price, and high winding cost

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