Multi-Channel Liquid Cooling Radiator With Flow Guide Grooves
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Solution Overview
Problem
Existing liquid cooling radiators face high flow resistance in microchannels, limiting heat dissipation efficiency, especially for products with higher thermal demands.
Innovation Solution
A multi-channel liquid cooling radiator design featuring a heat sink base with parallel fins, notches forming guide grooves, and a flow guide structure with diversion and confluence grooves that alter coolant flow direction, reducing travel distance and resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If coolant flows through the spacing between fins in traditional radiators, then heat dissipation occurs, but flow resistance becomes excessively large
Solution Approach 1:
The patent divides the single coolant flow path into multiple parallel channels by introducing guide grooves that split the flow into several streams. This segmentation reduces the flow resistance in each individual channel while maintaining effective heat dissipation across all fin spacing regions.
Solution Approach 2:
The patent introduces a new dimensional approach by creating guide grooves that extend in the front-rear direction, adding a third dimension to the traditional fin spacing structure. This allows coolant to flow through multiple levels and directions, reducing resistance while improving heat transfer efficiency.
2Loss of energy
If guide grooves are introduced to divide coolant flow, then flow resistance is reduced, but the travel distance of liquid increases
Solution Approach 1:
By segmenting the flow into multiple parallel channels through guide grooves, the patent reduces the effective travel distance in each channel while maintaining overall heat dissipation coverage. Each segmented stream travels a shorter distance compared to a single long path.
Solution Approach 2:
The guide grooves are strategically positioned to create localized flow optimization in different regions. Each groove serves a specific local area, allowing coolant to exit at optimal positions rather than traveling the full length of the radiator.
3Temperature
If multiple guide grooves are created in fins, then heat dissipation efficiency improves, but manufacturing complexity increases
Solution Approach 1:
The manufacturing process is segmented into distinct steps: forming guide grooves first, then creating fins. This sequential segmentation allows each operation to be optimized independently, reducing overall manufacturing complexity despite the presence of multiple guide grooves.
Solution Approach 2:
The guide grooves are formed as a preliminary action before fin creation. This preliminary structuring establishes the flow paths in advance, simplifying subsequent fin manufacturing and assembly processes.
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 design effectively reduces flow resistance and increases coolant flow rate, enhancing thermal conductivity and heat dissipation performance.
Implementation Method 1
The flow guide structure includes at least two diversion grooves and at least one confluence groove... after a liquid enters the corresponding guide grooves from the diversion grooves, the liquid is diverted to flow left and right in a spacing between the fins
Implementation Method 2
The notches, corresponding to each other in the front-rear direction, of the fins together form a guide groove extending in the front-rear direction, such that the top of the fin unit form at least three guide grooves spaced apart in the left-right direction
Data Source
AI summary
A multi-channel liquid cooling radiator includes a heat sink base and a fin unit on the heat sink base. The fin unit has at least three guide grooves. A flow guide structure is provided on the heat sink base. The flow guide structure includes at least two diversion grooves and at least one confluence groove. Through the arrangement of multiple guide grooves and the flow guide structure, the flow direction of a coolant is changed, the travel distance of the coolant is shortened, the flow resistance is reduced, and the thermal conductivity of the liquid cooling radiator is improved.