Motor Cover Venting and Drain Layout for Variable Housing Lengths
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Solution Overview
Problem
Existing motor designs with refrigerant flow paths become complex when air vent holes and drain holes are provided in housings of different lengths, complicating the structure and reducing design flexibility.
Innovation Solution
A motor design featuring a cylindrical housing with a common first cover that includes both an air vent hole and a drain hole, simplifying the housing structure and allowing the same cover to be used across different housing lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air vent holes and drain holes are provided in housings of different lengths, then the functionality of air venting and draining is improved, but the structure of the housing becomes complicated
Solution Approach 1:
The housing is divided into an upper portion and a lower portion, with the first cover blocking the opening and providing both air vent and drain holes. This segmentation allows different functions (air venting and draining) to be separated into different holes while maintaining a unified housing structure.
Solution Approach 2:
The first cover is designed as a universal component that can be applied to housings of different lengths. By integrating both air vent and drain holes into a single cover design, the same cover structure serves multiple functions across different housing configurations, simplifying the overall housing structure.
2Adaptability or versatility
If different housings are designed for stators of different lengths, then the adaptability to various stator lengths is improved, but the manufacturing complexity increases
Solution Approach 1:
A common first cover design is created that can be universally applied to housings of different lengths. This single cover design incorporates both air vent and drain holes, allowing the same component to serve multiple housing configurations, thereby enhancing adaptability while simplifying manufacturing.
Solution Approach 2:
Instead of varying the housing length dimension to accommodate different stators, the solution moves to another dimension by making the first cover the adaptable element. The cover maintains consistent dimensions and hole positions, while the housing length varies, separating the adaptability requirement from the housing structure.
Data Source
AI summary
A motor includes a cylindrical housing that accommodates a stator and a rotor inside, and a first cover that blocks an opening of the housing. The housing is provided with a refrigerant flow path. Each of an upper portion and a lower portion of the first cover is provided with a first hole through which an inside and an outside of the refrigerant flow path communicate with each other.