Stator core and manufacturing method thereof

Abstract

The invention provides a stator core and a manufacturing method thereof. The stator core comprises a lower end plate, an upper end plate, a plurality of laminated bodies and a plurality of connection members, wherein the laminated bodies are laminated between the lower end plate and the upper end plate; the connection members are penetrated through the laminated bodies and are connected with the lower end plate and the upper end plate; each laminated body comprises a plurality of laminated body units which are sequentially arranged in the circumferential direction and form a circumference; each laminated body unit comprises a yoke part and an inner tooth; the yoke part is an arc-shaped flat piece or plate; the inner tooth is a flat piece or plate and extends from the yoke part to the circle center of the yoke part; at least one of the yoke part and the inner tooth comprises a hole; adjacent laminated body units among the multiple laminated body units of each laminated body form joint seams; each connection member comprises a rod; the rod is penetrated through the hole of the laminated body unit; the lower end of the rod is fixed to the lower end plate, and the upper end of the rod is fixed to the upper end plate; the yoke parts of the multiple laminated bodies overlap along the direction of the rod; the inner teeth of the multiple laminated bodies overlap along the direction of the rod; and the multiple joint seams of the adjacent laminated bodies among the multiple laminated bodies do not overlap.

Description

technical field [0001] The present invention relates to magnetic circuit components of motors or generators, in particular to a stator core and a manufacturing method thereof, more specifically to a high-performance amorphous, microcrystalline and nanocrystalline alloy stator core for a radial field motor and its Manufacturing method. Background technique [0002] In my country, the power consumption of electric motors (hereinafter referred to as motors) is about 50% of the total electricity consumption in the country and exceeds 70% of industrial electricity consumption. Therefore, improving the efficiency of motors has important social benefits and economic value. Amorphous, microcrystalline and nanocrystalline alloy materials have excellent soft magnetic properties such as high magnetic permeability and low loss. After being applied to motors, they can greatly reduce the iron loss of the motor and improve the efficiency of the motor. [0003] The loss of the motor is mai...

AI Technical Summary

Problems solved by technology

The iron core or internal magnetic circuit made by the above method contains a large number of air gaps, or there are hidden dangers in the structural stability, and the thermal curing treatment of the resin will lead to a significant decrease in the performance of the amorphous alloy stator core.

Images