Rotating Machine Cooling Frame With Parallel Flow Passages
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Solution Overview
Problem
Existing rotating electric machine cooling frames face challenges in uniformly cooling the machine due to temperature irregularities caused by the gradual increase in cooling water temperature as it flows through the frame.
Innovation Solution
A rotating electric machine cooling frame with a cylindrical frame main body, a cooling-medium inlet, a cooling-medium outlet, and a plurality of flow-passage lines that include a cooling-medium flow passage, designed to efficiently distribute and circulate cooling water to prevent temperature irregularities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If cooling water flows through multiple through-holes in the frame main body, then cooling coverage is improved, but temperature irregularity increases due to gradual temperature increase of cooling water
Solution Approach 1:
The cooling system is segmented into multiple independent flow passages (first flow passage and second flow passage) that branch from a common inlet. Each flow passage independently cools different regions (first region and second region) of the rotating electric machine, preventing temperature irregularities by distributing cooling water through separate pathways rather than a single sequential path.
Solution Approach 2:
The invention transitions from a linear sequential cooling path through multiple through-holes to a multi-dimensional branching flow structure. Cooling water is distributed in parallel through multiple flow passages that extend in different spatial directions, allowing simultaneous cooling of multiple regions and reducing the cumulative temperature increase effect.
2Quantity of substance
If multiple through-holes are arranged side by side in the circumferential direction, then cooling water distribution is improved, but cooling water temperature increases gradually reducing cooling effectiveness
Solution Approach 1:
The cooling water distribution system is segmented into multiple parallel flow passages instead of a single path. Each flow passage maintains independent cooling water flow, ensuring that cooling effectiveness is preserved in each region simultaneously rather than sequentially, where later regions would receive warmed water.
Solution Approach 2:
Multiple flow passages enable continuous and simultaneous cooling action across different regions of the rotating electric machine. All regions receive cooling water at approximately the same time and temperature, maintaining continuous effective cooling throughout the system rather than intermittent cooling with temperature variations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces temperature irregularities and ensures thorough cooling of the rotating electric machine by minimizing the time cooling water remains inside the frame and preventing it from becoming warmer.
Implementation Method 1
a cooling-medium flow passage in communication with the cooling-medium inlet and the cooling-medium outlet
Implementation Method 2
supplies cooling water for cooling to an inside of the rotating electric machine frame to prevent heating
Data Source
AI summary
A rotating electric machine cooling frame according to an embodiment includes: a cylindrical frame main body; one cooling-medium inlet provided on the frame main body; one cooling-medium outlet provided on the frame main body; and a plurality of flow-passage lines provided in the frame main body, including a cooling-medium flow passage in communication with the cooling-medium inlet and the cooling-medium outlet.