Double-Layer Cooling Plate Channels for Lower Pressure Loss
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Solution Overview
Problem
Existing CPU cooling technologies face challenges such as low heat dissipation efficiency, high noise levels, and technical difficulties in mass production, particularly with air cooling and direct contact liquid cooling, while plate-type liquid cooling suffers from high internal resistance and pressure differences.
Innovation Solution
A cooling device featuring a cooling plate with a lower flow channel and a mounting cover with a C-shaped cross section, forming intermediate and branch flow channels that reduce pressure loss and increase heat dissipation efficiency by optimizing fluid flow and contact area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If plate-type liquid cooling is used, then heat dissipation efficiency is improved, but pressure difference between inlet and outlet increases
Solution Approach 1:
The cooling device divides the flow channel into multiple segments: an intermediate flow channel and two branch flow channels. This segmentation allows the coolant to flow through parallel paths, reducing the overall flow resistance and pressure difference while maintaining effective heat dissipation across the cooling plate.
Solution Approach 2:
The patent introduces a three-dimensional flow channel structure with an intermediate flow channel at a different level (dimension) than the branch flow channels. This spatial arrangement creates parallel cooling paths that reduce pressure loss while maintaining heat transfer efficiency.
2Area of stationary object
If long flow channel is used, then heat transfer area is increased, but internal resistance and pressure difference increase
Solution Approach 1:
The flow channel is segmented into parallel branches, allowing the coolant to traverse the heat transfer area through multiple shorter paths simultaneously. This maintains the total heat transfer area while reducing the length of any single flow path, thereby decreasing internal resistance.
Solution Approach 2:
By creating a multi-level flow channel structure with intermediate and branch channels at different spatial dimensions, the patent enables parallel heat transfer paths that reduce flow resistance while maintaining adequate heat transfer area.
3Stress or pressure
If pump power is increased, then pressure difference is overcome, but system cost increases
Solution Approach 1:
The flow channel is divided into parallel intermediate and branch channels, which reduces overall flow resistance and pressure difference. This allows the system to operate with lower pump power while maintaining effective coolant circulation.
4Device complexity
If air cooling is used, then system complexity is reduced, but heat dissipation capacity is insufficient
Solution Approach 1:
The patent employs liquid cooling (hydraulic principle) instead of air cooling, utilizing the superior heat capacity and thermal conductivity of liquid coolant to achieve efficient heat dissipation while maintaining relatively simple system architecture.
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 cooling device achieves improved heat dissipation efficiency, reduced noise, and lower production costs by minimizing pressure loss and internal resistance, while maintaining high thermal conductivity and structural integrity.
Implementation Method 1
A lower flow channel is provided in the cooling plate... A bottom of the cooling plate is configured to be in contact with a heat source
Implementation Method 2
The first mounting cover is provided with a water inlet, the water inlet is configured to be connected to a water inlet nozzle... The intermediate flow channel is in communication with the two branch flow channels
Data Source
AI summary
The present disclosure provides a cooling device, including a cooling plate and a mounting cover. A lower flow channel is provided in the cooling plate, a top of the cooling plate is provided with a water outlet and two openings. The water outlet is located between the two openings. The mounting cover is sealed on the top of the cooling plate. The mounting cover comprises a first mounting cover and a second mounting cover. The first mounting cover and the cooling plate form an intermediate flow channel, the second mounting cover and the cooling plate form a branch flow channel. The intermediate flow channel is in communication with the two branch flow channels, The first mounting cover is provided with a water inlet, and the two branch flow channels are in communication with the lower flow channel through the two openings.