Concentrically-split-type stator and stator winding centralized assembling method

Abstract

The invention provides a concentrically-split-type stator and stator winding centralized assembling method and relates to a method applied to a small-size permanent-magnet synchronous motor or an AC asynchronous motor. According to the concentrically-split-type stator and stator winding centralized assembling method, a nonsalient-pole-type stator iron core is segmented into a concentric main stator iron core and a notch iron core component along the radial direction. During the assembling of the concentrically-split-type stator, the stator winding centralized assembling method is used to install a stator winding component first, then, the notch iron core component is installed, and the stator winding component is fixed by the notch iron core component. In the craft process of the stator winding centralized assembling method, stator windings are prepared first and then, the stator windings are assembled in a centralized manner. According to the concentrically-split-type stator and the stator winding centralized assembling method, the method of manual line marking and line pressing which are used to embed wires into a stator wire groove in the scattered embedding process of the stator windings is no longer needed, so that wire embedding efficiency in the stator winding centralized assembling method is high; and the continuous winding forming processing process of closed-slot-type notch iron core punched plates of the concentrically-split-type stator is a continuous processing process, so that mechanical equipment can be used favorably to improve production efficiency.

Description

technical field [0001] The present invention relates to a concentric segmented stator and a centralized assembly method for stator windings, which relates to a method applied to small permanent magnet synchronous motors or AC asynchronous motors, in particular to a stator structure capable of improving the efficiency of stator winding embedding and Technical scheme of embedding method. Background technique [0002] AC asynchronous motors have a large market share. AC asynchronous motors have low efficiency, while permanent magnet synchronous motors have high efficiency, high power factor, and remarkable energy-saving effect. Therefore, permanent magnet synchronous motors are gradually replacing AC asynchronous motors as mainstream motors. The stators of most permanent magnet synchronous motors and AC asynchronous motors use distributed stator windings. The embedded wire work of the distributed stator winding of the ordinary internal rotor motor is relatively difficult, esp...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of traditional low-speed low-power permanent-magnet synchronous motors and AC asynchronous motors with large labor costs for embedding ...

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