Permanent-magnet motor stator by taking iron core as slotless partitioned type structure and production method thereof

Abstract

The invention relates to a permanent-magnet motor stator by taking an iron core as a slotless partitioned type structure and a production method thereof. An annular cylindrical stator iron core of the stator is composed of a plurality of arc-shaped laminated members which are mutually spliced and all the arc-shaped laminated members are piled by arc-shaped punching sheets. The invention provides the permanent-magnet motor stator by taking the iron core as the slotless partitioned type structure which has the advantages of simple structure, scientific design, safety and reliability and strong practical applicability and the production method thereof; and with the adoption of the motor stator and the production method of the motor stator, the material cost can be greatly saved, the production efficiency and the product consistency are improved, a large batch of mechanically automatic production lines are established, and the popularization and the development of the stator permanent-magnet motor with the stator which takes the iron core as the slotless type structure are convenient.

Description

technical field [0001] The invention relates to the field of permanent magnet motors with a stator without slots, in particular to a segmented structure of a slotless stator core and a manufacturing method for the stator. Background technique [0002] In recent years, with the continuous improvement of special requirements for permanent magnet motor torque fluctuation, reluctance torque, production efficiency, and automatic production level in various industries, the market demand for permanent magnet motors with stator core slotless structure is also gradually increasing. . However, the current general structure design of stator iron core slotless permanent magnet motor, especially the large diameter iron core structure, cannot meet the needs of large-scale mechanized automatic production, and there is a serious waste of materials. The main problems are as follows: 1. The punching sheet has a ring structure, the utilization rate of the silicon steel sheet is extremely low,...

AI Technical Summary

Problems solved by technology

However, the current general-purpose stator core slotless permanent magnet motor structure design, especially the large-diameter iron core structure, cannot meet the needs of large-scale mechanized automatic production, and there is a serious waste of materials

The main problems are as follows: 1. The punching sheet has a ring structure, the utilization rate of the silicon steel sheet is extremely low, and there is a serious waste of materials; 2. For the stator winding, the traditional process is to discharge all the winding coils in order On the surface of the stator core, it is fixed by pouring epoxy resin. The production efficiency of this structure and process is extremely low, and it is impossible to establish a large-scale mechanized automatic production line, which seriously restricts the promotion and development of this type of motor.

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