Inward-rotation stator and manufacturing method thereof

Abstract

The invention discloses an inward-rotation stator and a manufacturing method thereof. A stator core of the stator consists of a plurality of independent I-shaped stator teeth in annular distribution; an insulating sleeve made from an insulating material is arranged between the stator core and a stator winding; and the side walls of the insulating sleeve are connected to be banded and wrapped on the tooth parts of the stator teeth in a bent manner. During production, single stator teeth are halved and arranged in an in-line state through specific in-line winding clamps, the annularly bent stator core and the winding are integrally fixed in a stator iron ring after quick linear winding. A permanent-magnet machine manufactured by adopting the method can greatly improve the efficiency of a motor, and reduce vibration and operation noise, and by adopting the method, the stator winding manufactured by coils with small diameters and large number of turns can meet the full-slot design effect, so that the method is suitable for manufacturing a motor with high running voltage.

Description

technical field [0001] The invention relates to a motor stator, in particular to an inner-rotating stator of a medium and small power motor and a production method thereof. Background technique [0002] The inner-rotating stator core of a traditional permanent magnet motor is formed by stacking a plurality of silicon steel sheets with inward gaps (inner 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 inner winding. However, the inner 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 input in or...

AI Technical Summary

Problems solved by technology

However, the inner 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.

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 gaps in the stator teeth with wide gaps are very harmful to improve the efficiency of the motor and reduce vibration and noise.

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