Cooler Sub Channel Air Bubble Bypass Design
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Solution Overview
Problem
Air bubbles trapped in coolant degrade the cooling performance of a cooler with an object attached to its upper surface, especially in winding channels where they can remain for a long time, reducing efficiency.
Innovation Solution
Incorporating a sub channel with a higher ceiling than the main channel at a branch point, where air bubbles are guided to bypass the main channel, and a smaller cross-sectional area to minimize coolant distribution and prevent air bubbles from entering the main channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a main channel is used for coolant flow with an object attached to its upper surface, then cooling performance is achieved, but air bubbles enter the channel and degrade cooling performance
Solution Approach 1:
The channel system is segmented into a main channel for coolant flow and a sub-channel specifically designed for air bubble removal. This segmentation allows the cooling function and air removal function to operate independently, preventing air bubbles from degrading cooling performance while maintaining efficient heat transfer in the main channel.
Solution Approach 2:
The sub-channel acts as an intermediary pathway that captures and removes air bubbles from the coolant flow before they can enter and block the main channel. This intermediary structure mediates between the coolant flow and air bubble management, ensuring stable cooling performance.
2Reliability
If a sub channel is added to bypass air bubbles, then air bubble removal is improved, but device complexity increases
Solution Approach 1:
The sub-channel is merged with the main channel at a branch point, forming an integrated channel structure. The sub-channel ceiling is positioned higher than the main channel ceiling at the branch point, creating a natural air bubble collection zone without requiring separate external components. This merging approach adds air bubble removal capability while minimizing structural complexity.
3Loss of energy
If the sub channel has a small cross-section area, then coolant distribution loss is reduced, but air bubble bypass capability may be limited
Solution Approach 1:
The sub-channel is designed with locally optimized properties: a small cross-section area along most of its length to minimize coolant distribution loss, but a higher ceiling position at the branch point to ensure effective air bubble capture. This local quality differentiation allows the sub-channel to perform both air bubble bypass and coolant flow management functions efficiently.
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
This configuration effectively prevents air bubbles from entering the main channel, maintaining cooling performance by redirecting them through a bypass channel, thus avoiding long-term degradation of cooling efficiency in winding main channels.
Implementation Method 1
A ceiling of the sub channel 14 may be higher than a ceiling of the main channel 13 at a branch point between the main channel 13 and the sub channel 14. Air bubbles trapped in the coolant flow into the sub channel 14 having a higher ceiling height, thus they do not enter the main channel 13.
Data Source
AI summary
The present disclosure provides a technique related to a cooler including a main channel in which an object to be cooled is attached to an upper surface thereof, and a structure which prevents air bubbles from entering the main channel. A cooler for cooling an object may include: a main channel in which coolant flows, wherein the object is attached to an upper surface of the main channel; and a sub channel bypassing the main channel, wherein a ceiling of the sub channel is higher than a ceiling of the main channel at a branch point between the main channel and the sub channel. Air bubbles trapped in the coolant flow into the sub channel having a higher ceiling height, thus they do not enter the main channel.