Motor stator and manufacturing method thereof, stator pieces of motor stator, sewing machine energy saving motor of motor stator and sewing machine of motor stator

Abstract

The present invention discloses a motor stator and a manufacturing method thereof, stator pieces of a motor stator, a sewing machine energy saving motor of a motor stator and a sewing machine of a motor stator. The stator comprises a plurality of stator posts and stator windings, the stator posts comprise outer edge plates and wrapping posts, the outer edge plates and the wrapping posts enclose open grooves configured to allow the stator windings to pass through, each stator post comprises one stator post main body formed by stacking a plurality of stator pieces and insulation pieces arrangedat two end faces of the stator post main body, each stator piece comprises one outer edge portion and one winding portion, each outer edge portion and each winding portion correspondingly form one outer edge plate and one wrapping post after the stator pieces are stacked, the outer edge plates of all the stator posts are spliced in order from front to back to enclose a cylindrical shape, and opengrooves of adjacent stator posts are butted joint. The winding is convenient and simple, the stator pieces can be more compact when blanking and typesetting are performed, waste is less, the dimensionof the mold is smaller, and the cost is lower. The present invention provides a manufacturing method of the motor stator, stator pieces forming the stator, a sewing machine energy saving motor of a motor stator and a sewing machine of a motor stator.

Description

【Technical field】 [0001] The invention relates to a motor stator, a manufacturing method thereof, a stator piece, a motor and a sewing machine. 【Background technique】 [0002] At present, the stator of the motor mainly uses silicon steel sheets to press out a piece of closed ring-shaped silicon steel sheets, and then stack the ring-shaped silicon steel sheets to form a cylindrical stator, and then wind the stator winding on the stator, and the stator winding is electrically Connect the PCB board. The above-mentioned stator has the following defects: 1. It is difficult to wind the cylindrical stator; 2. Since the silicon steel sheet is a closed ring, the silicon steel sheet inside the ring is punched waste, which is a large waste; 3. The area of ​​a single silicon steel sheet is large , The cost of the punching die is high; 4. The connection of the PCB board is not firm enough, and it is easy to fall off, causing an open circuit and making the motor unable to work. 【Conten...

AI Technical Summary

Problems solved by technology

The above-mentioned stator has the following defects: 1. It is difficult to wind the cylindrical stator; 2. Since the silicon steel sheet is a closed ring, the silicon steel sheet inside the ring is punched waste, which is a large waste; 3. The area of ​​a single silicon steel sheet is large , the cost of the punching die is high; 4. The connection of the PCB board is not strong enough, it is easy to fall off, resulting in an open circuit, making the motor unable to work

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