Three-phase winding Y-wiring single phase capacitance run motor for washing machine

Abstract

A three-phase winding Y junction single-phase capacitor run motor is provided, wherein the rated output power is 40-250W, the rated slip ratio is 0.12+ / -0.03; the stator core punching sheet is in the square round figuration with the square size 108+ / -1mm and four angles inversed with arc, the 24-slot is in equal tooth width, and the four arc sections are arranged with four slots, wherein four straight segments are all arranged with two shallow slot respectively; the stator fillet is in the three-phase four-pole, single layer, the pitch is five, and the first phase is distributed in the shallow slot while the second phase and the third phase are distributed in the deep slot; the effective turn of the second phase and the third phase is 1; the bottom of the three-phase winding is connected together, and the starting end of the second phase and the third phase windings is connected with a capacitor; one of the starting end of the second phase and the third phase windings is connected wit a single-phase power, characterized in that, the effective turn of the first phase and the second phase is 0.3+ / -0.1. According to the turn ratio, the motor can better compromise the product standard about the starting and the operating performance, and obtain better performance.

Description

technical field [0001] The invention relates to a three-phase winding Y-connection single-phase capacitor running motor for a washing machine, which belongs to H02K17 / 08 or H02K3 / 28 in the international patent classification table. Background technique [0002] A single-phase capacitor-operated motor for a washing machine traditionally uses two-phase windings, and the prior art proposes the use of three-phase windings. The stator of the three-phase winding motor has three-phase windings connected in star or delta, and its two input terminals connected to the two poles of the single-phase power supply and the third input terminal connected to one pole of the single-phase power supply through a capacitor. The phase band of the three-phase winding is usually π / 3, which is smaller than the phase band of the two-phase winding π / 2, which is conducive to improving the winding coefficient and weakening the serious third harmonic. Among them, the star connection is also called Y con...

AI Technical Summary

Problems solved by technology

The single-phase capacitor-operated motor for washing machines using outer square shaped slot stator punching and three-phase windings adds many design variables compared to traditional motors, and the magnetic circuit and circuit become quite complicated. So far, no relatively complete and accurate research and design has been seen. method, making it difficult to adjust the design and obtain better performance

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