Off-Center Impeller Liquid Cooling Device for CPU Heat Dissipation
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Solution Overview
Problem
Conventional liquid-cooling devices for CPUs are bulky, inefficient, and prone to leakage due to complex structures, leading to increased manufacturing costs and reduced yield.
Innovation Solution
A compact liquid-cooling device design featuring a pump and multiple radiating fins within a single heat exchange chamber, where the impeller is positioned off-center and radiating fins are radially arranged to facilitate efficient liquid circulation, with sealing components to prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional liquid-cooling devices use separate chambers for pump and heat exchange, then the device can perform cooling function, but the volume of the device becomes large and structure becomes complex
Solution Approach 1:
The patent merges the pump chamber and heat exchange chamber into a single integrated chamber. The pump and heat exchange components are positioned within the same chamber, eliminating the need for separate chambers and reducing overall device volume. This integration directly addresses the contradiction by combining multiple functions into one space, thereby reducing volume while maintaining cooling functionality.
Solution Approach 2:
The single chamber serves multiple functions: it acts as both the pump chamber for circulating cooling liquid and the heat exchange chamber for thermal transfer. This multi-functional design eliminates the need for separate dedicated chambers, simplifying the overall structure and reducing device volume while maintaining all necessary cooling functions.
2Ease of manufacture
If conventional liquid-cooling devices use complex structures with multiple components, then the cooling function can be achieved, but the manufacturing cost increases and yield decreases
Solution Approach 1:
By integrating the pump and heat exchange components into a single chamber, the patent reduces the number of separate components and connection points. This simplification reduces manufacturing complexity and cost while also reducing the number of potential leakage points, thereby improving reliability.
Solution Approach 2:
The patent extracts and eliminates unnecessary intermediate structures and connection components between separate chambers. By removing these extraneous elements, the design simplifies manufacturing processes, reduces costs, and eliminates potential failure points that could lead to leakage.
3Speed
If the impeller is positioned at the center of the heat exchange chamber, then the structure is simple, but the cooling liquid circulation efficiency is reduced
Solution Approach 1:
The patent positions the impeller off-center within the heat exchange chamber, specifically adjacent to the inlet. This asymmetric positioning optimizes the flow pattern of cooling liquid, creating more effective circulation paths and improving heat exchange efficiency. The off-center position allows the impeller to directly drive liquid flow through the heat exchange surface, enhancing cooling performance.
Solution Approach 2:
The impeller is positioned in a specific location adjacent to the inlet to maximize its local effect on cooling liquid flow. This localized positioning creates optimal flow patterns at the critical inlet region, improving overall circulation efficiency without requiring complex positioning mechanisms throughout the entire chamber.
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 results in a smaller volume, higher cooling efficiency, and lower manufacturing costs, increasing yield while ensuring effective heat dissipation and preventing liquid leakage.
Implementation Method 1
the heat exchange component having a heat contact face and a heat exchange face in contact with the cooling liquid in the heat exchange chamber
Implementation Method 2
a pump component for circulating the cooling liquid, the pump component including a stator, a rotor and an impeller connected with the rotor
Implementation Method 3
multiple radiating fins being disposed on the rest section of the heat exchange face
Data Source
AI summary
A liquid-cooling device and a liquid-cooling system thereof. The liquid-cooling device includes a liquid reservoir case having a heat exchange chamber for a cooling liquid to pass through. An impeller and multiple radiating fins in adaptation to the impeller are disposed in the heat exchange chamber. The impeller serves to drive the cooling liquid to circularly flow through the radiating fins so as to efficiently dissipate heat generated by a heat generation component.