Cooling Plate Bubble Collection Channels for Compact Liquid Cooling
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Solution Overview
Problem
Conventional liquid cooling apparatuses in small intelligent terminals face issues with working medium loss leading to gas entry, causing bubbles that affect pump operation and heat dissipation, and existing supplementation and exhaust systems are too large for portable devices.
Innovation Solution
A gas collection apparatus with internal structures and channels designed to collect bubbles, utilizing increased local resistance to reduce bubble flow rate and prevent re-entry into the primary flow channel, without requiring external energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional supplementation apparatus or exhaust apparatus are used to handle gas in liquid cooling apparatus, then gas can be supplemented or exhausted, but the apparatus size becomes too large for small terminal devices
Solution Approach 1:
The gas collection structure is integrated into the cooling plate, merging the gas collection function with the existing cooling structure. The connecting channel connects the first flow channel and second flow channel within the cooling plate, eliminating the need for separate supplementation or exhaust apparatus, thus reducing overall apparatus size while maintaining gas handling capability
Solution Approach 2:
The gas collection function is extracted from the main cooling flow path through a dedicated connecting channel that leads to a separate gas collection structure. This allows bubbles to be isolated and collected in a specific region without interfering with the primary cooling function, enabling effective gas handling in a compact form
2Productivity
If working medium flows rapidly to maintain heat dissipation performance, then heat dissipation efficiency improves, but bubbles are more likely to be carried back to the first flow channel
Solution Approach 1:
The second flow channel is designed with different flow characteristics compared to the first flow channel. By creating a region with lower flow velocity and higher local resistance, bubbles can be effectively collected without compromising the overall heat dissipation performance of the primary cooling path
Solution Approach 2:
The flow path is segmented into two distinct channels: the first flow channel for high-velocity cooling water flow to maintain heat dissipation efficiency, and the second flow channel with higher local resistance for bubble collection. The connecting channel provides a controlled transition between these two segments, allowing bubbles to enter the collection channel while preventing them from being carried back to the main cooling flow
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 gas collection apparatus effectively collects bubbles, maintaining pump operation and heat dissipation performance in small terminals by minimizing bubble re-entry, thus ensuring efficient heat transfer and extending device lifespan.
Implementation Method 1
bubbles carried when a working medium flows in the first flow channel
Implementation Method 2
local resistance to the working medium in a process of flowing in the second flow channel is greater than local resistance to the working medium in a process of flowing in the first flow channel
Implementation Method 3
local resistance to the working medium in a process of flowing in the second flow channel is greater than local resistance to the working medium in a process of flowing in the first flow channel, so that a flow rate of the working medium in the second flow channel is lower than a flow rate of the working medium in the first flow channel
Data Source
AI summary
This application relates to the field of liquid cooling technologies, and provides a gas collection apparatus, configured to collect bubbles generated due to loss of a working medium in a liquid cooling apparatus. The gas collection apparatus includes a cooling plate. The cooling plate includes at least one gas collection structure disposed inside the cooling plate, a first flow channel disposed inside the cooling plate, a second flow channel disposed inside the gas collection structure, and at least one connecting channel configured to connect the first flow channel and the second flow channel. The at least one connecting channel is configured to transfer, to the second flow channel, bubbles carried when the working medium flows in the first flow channel. The at least one gas collection structure is configured to collect the bubbles from the second flow channel.