Stator structure of plastic-molded motor for washing machine

Abstract

The invention provides a stator structure of a molding electrical machine for a washing machine, which comprises a stator iron core insulating piece and an terminal part, wherein the terminal part and the stator iron core insulating piece are respectively to be a separated part and are connected with each other into a whole body in the manner of inserting, fastening, bonding or molding. The middle of the terminal part is provided with a plane which is named as a middle plane of the terminal part, the middle plane of the terminal part is provided with a protecting hole for protecting an enameled wire, and the enameled wire is arranged in the protecting hole of the enameled wire when the terminal part is molded, so that the terminal part can be directly molded without arranging a conventional cover for protecting the terminal part, the material and the time can be saved, and the hidden trouble that the enameled wire is crushed by the conventional structure can be avoided. Furthermore, a certain height difference exists between a groove at a place where the enameled wire is inserted and the middle plane, so that a waterproof material can not be fed into or covered on the end part of an electric connecting coil, and the defective product of the stator of the electrical machine since a molding material is fed into the end part of the electric connecting coil can be reduced.

Description

technical field [0001] The invention relates to a stator structure of a plastic molded motor for a washing machine, which belongs to the improvement technology for the stator of an outer rotor type permanent magnet synchronous motor for a washing machine. Background technique [0002] The stator structure of the conventional outer rotor type permanent magnet synchronous motor for washing machines is molded using stator core insulation, coil windings, covers for protecting terminals, metal terminals, and waterproof resin. It is characterized in that: 1. The terminal part is a part of the stator core insulator, that is, the stator core insulator and the terminal part are an integral structure, so the terminal part and the stator core insulator are integrally molded from the same material; 2. 1. After the stator core insulator is wound, before the terminal part with the end part electrically connected to the coil is molded with waterproof resin, it is necessary to insert a cove...

AI Technical Summary

Problems solved by technology

[0005] 1. The terminal part is a part of the stator core insulator, that is, the stator core insulator and the terminal part form an integral structure. This structure makes the terminal part and the stator core insulator integrally molded from the same material, resulting in Parts other than the terminal part that do not have combustion conditions also need to be molded with flame-retardant materials, and the cost is relatively high;

[0006] 2. After the stator core insulator is wound, it has a terminal part that is electrically connected to the end of the coil. Before molding with waterproof resin, a cover for protecting the terminal part needs to be embedded on the side of the terminal part, which increases the cost and cost. process, reducing production efficiency;

This structure of protecting the enameled wire has the hidden danger of crushing the enameled wire when it is pressed into the cover. Therefore, it is necessary to bend the enameled wire and place it in the groove of the terminal for positioning before pressing into the cover to protect the terminal part to prevent it from being crushed. The enameled wire is crushed when entering the cover, which makes the process complicated, the production efficiency is low, and there are hidden dangers in quality

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