Motor Assembly Zigzag Protection Structure for Waterproof Sealing

Solution Overview

Problem

Conventional motor assemblies require additional processes and time to achieve waterproof and dustproof functions, resulting in long production times and high costs.

Innovation Solution

A motor assembly design that includes a frame, rotor, winding component, and protection component with a zigzag design formed by the inner and outer ring portions and base, which creates a concave structure to prevent water and dust from entering, while reducing production time and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the circuit board and electronic elements are soaked in protection liquor or the motor assembly is subjected to vapor deposition process, then waterproof and dustproof functions are achieved, but production time increases and manufacturing cost increases

Engineering Contradiction:

Improvewaterproof and dustproof functionVSAvoidproduction time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The protection component is divided into multiple segments including an inner ring portion, an outer ring portion, and a base, each forming part of the zigzag protective structure. This segmentation allows the waterproof protection to be integrated into the motor assembly structure itself rather than requiring separate coating processes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The protection component creates a three-dimensional zigzag structure with multiple concave portions that provide waterproof protection through geometric configuration rather than through material coating. This dimensional approach eliminates the need for additional processing steps.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If the circuit board and electronic elements are soaked in protection liquor or the motor assembly is subjected to vapor deposition process, then waterproof and dustproof functions are achieved, but manufacturing cost increases

Engineering Contradiction:

Improvewaterproof and dustproof functionVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The protection component merges the waterproof protection function with the structural support function by integrating it into the motor assembly's existing framework. The inner ring portion, outer ring portion, and base work together to provide both structural integrity and waterproof protection, eliminating the need for separate protection layers.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The zigzag structure of the protection component provides self-contained waterproof protection through its geometric design, where the multiple concave portions create natural barriers against water and dust penetration without requiring external coating materials or additional processing.

Inventive Principle:

Principle #25Self-service

3Reliability

If a protection layer is formed by soaking or vapor deposition, then waterproof function is achieved, but the structure becomes more complex

Engineering Contradiction:

Improvewaterproof functionVSAvoidstructural complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The protection component is divided into multiple segments including an inner ring portion, an outer ring portion, and a base, each forming part of the zigzag protective structure. This segmentation allows the waterproof protection to be integrated into the motor assembly structure itself rather than requiring separate coating processes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The protection component creates a three-dimensional zigzag structure with multiple concave portions that provide waterproof protection through geometric configuration rather than through material coating. This dimensional approach eliminates the need for additional processing steps.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20230421013A1Motor assembly

Publication Date: 2023.12.28 DELTA ELECTRONICS INC(CN)

AI summary

A motor assembly is provided. The rotor includes a hub and a first hollow portion. The first hollow portion is concavely formed from a surface of the hub. A first end of the winding component is disposed in the first hollow portion. The protection component includes an inner ring portion, an outer ring portion and a base. The inner ring portion includes a second hollow portion and a first concave. The fixing portion is penetrated through the second hollow portion and in the first hollow portion. The first concave is concavely formed on one side of the inner ring portion. The outer ring portion includes a second concave. The base is connected with the inner ring portion and the outer ring portion. A second end of the winding component is disposed in the first concave. The bottom portion of the casing is partially received within the second concave.