Externally rotating stator and manufacturing method thereof

Abstract

The invention discloses an externally rotating stator and a manufacturing method thereof; a stator iron core of the stator consists of a plurality of independent I-shaped stator teeth which are lined in a circular shape and are fixedly arranged on a stator seat; insulating bushes which are made of insulating materials are arranged between the stator iron core and a stator winding; and the side walls of the insulating bushes are connected in a strip shape and are bent and wrapped on the tooth parts of the stator teeth. When in manufacturing, a special linear winding jig is used for lining the single stator teeth into a linear shape equally, plastic insulating bushes are covered on the stator teeth, quick winding is completed through a linear winding method, and then the stator iron core which is bent into a round shape and the winding are integrally and fixedly arranged on the stator seat. The efficiency of a permanent magnetic motor which is manufactured through the method can be greatly improved, vibration and working noise are reduced; and according to the method, the stator winding with a small wire diameter and a large number of turns reaches a tankful design effect, and the method is also applicable to manufacturing motors with high working voltage.

Description

technical field [0001] The invention relates to a motor stator, in particular to an outer rotor type stator of a medium and small power motor and a production method thereof. Background technique [0002] The externally rotating stator core of the traditional permanent magnet motor is formed by stacking a plurality of silicon steel sheets with outward gaps (outer gaps) between adjacent stator teeth to form a circular stator. The stator core and The stator winding wound on the stator teeth of the iron core constitutes the stator of the motor, and its winding method is outer winding. However, the outer winding method determines that there must be enough space in the gap between the teeth of the stator core to allow the normal construction of the winding machine. However, the stator produced in this way can only be satisfied with the use of thick-diameter enameled wire and a motor with a low number of turns and a low voltage operation. For motors that work with high voltage i...

AI Technical Summary

Problems solved by technology

However, the stator produced in this way can only be satisfied with the use of thick-diameter enameled wire and a motor with a low number of turns and a low voltage.

For motors that work with high voltage input in order to improve the efficiency of the motor, reduce vibration and noise, and greatly save power materials, due to the need to use thin-diameter enameled wire and high number of turns, it is obviously impossible to carry out construction with the above operation method Production

Regardless of theory or practice, the outer gap of the stator teeth with wide clearance is very harmful to improve the efficiency of the motor and reduce vibration and noise

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