Skeleton assembly and electric machine having the same

By designing terminals and terminal protectors with tear-resistant features in the frame assembly of the brushless DC motor, the problem of the difficulty in cutting the outer sheath of the enameled wire is solved, and reliable contact and conduction between the winding and the terminal are achieved, thereby improving production efficiency and product quality.

CN224481544UActive Publication Date: 2026-07-10GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Filing Date
2025-07-02
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

During the wiring process of a brushless DC motor, the enamel coating on the surface of the wire is not easily scratched by the terminals, which can easily lead to poor contact between the winding and the terminals.

Method used

Design a skeleton assembly including a terminal block having a first sidewall and a second sidewall, forming a clamping space between the sidewalls, and a slicing body provided on at least one sidewall to squeeze the enameled wire sheath to achieve efficient cutting, while using a terminal protector for pressing, fixing and covering to ensure reliable contact between the winding and the terminal block.

Benefits of technology

This technology enables efficient cutting of the enameled wire sheath, ensuring reliable contact and continuity between the winding and the terminal block. It also improves the automation level of the process, avoids poor contact and cold solder joints, and extends the service life of the terminal block.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a frame assembly and a motor having the same. The frame assembly includes a first frame and terminals. The first frame includes a first yoke with a terminal holder formed thereon. The terminal holder has a mounting cavity, and the terminals are mounted in the mounting cavity. The terminals have a first sidewall and a second sidewall, forming a clamping space between the first and second sidewalls. At least one of the first and second sidewalls has a slicing element. The enameled wire is placed in the clamping space and is compressed against the slicing element, causing the outer sheath of the enameled wire to be slashed. According to this invention, during the process of pressing the enameled wire into the clamping space, the slicing element effectively cuts through the outer sheath of the enameled wire, ensuring reliable contact and conductivity between the winding and the terminals.
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