Grounded Water-Cooling Head Structure for Leakage Current Control
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Solution Overview
Problem
Current water-cooling systems for semiconductor components face issues with current leakage from internal transistors leading to electrode polarization and electrochemical reactions in the cooling liquid, causing impurity generation and pipeline jamming.
Innovation Solution
A water-cooling head structure with a metal base plate and fins, equipped with a waterproof layer and a ground cable set, guides leakage current to a system circuit for elimination, preventing electrochemical reactions by grounding the residual charge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a water-cooling head is used to cool semiconductor components, then cooling efficiency is improved, but current leakage causes electrode polarization and electrochemical reactions in the cooling liquid
Solution Approach 1:
An insulating layer is introduced as an intermediary between the metal base plate (conductive) and the cooling liquid, preventing direct electrical contact while allowing thermal contact. This mediator blocks the harmful electrochemical reactions and current leakage pathways while preserving the cooling function.
Solution Approach 2:
The harmful electrical conductivity is extracted from the cooling liquid by introducing a non-conductive insulating layer, separating the thermal transfer function from the electrical conduction function. This removes the pathway for electrochemical reactions while maintaining cooling efficiency.
2Reliability
If current leakage occurs in the electronic heat generating component, then residual electrical charge accumulates on the water-cooling head, but this leads to electrochemical reactions and pipeline jamming
Solution Approach 1:
The insulating layer acts as a mediator that prevents charge accumulation on the cooling liquid and metal base plate interface, blocking the pathway for harmful electrochemical reactions and subsequent pipeline jamming while maintaining system reliability.
Solution Approach 2:
The insulating layer provides beforehand protection by preventing charge accumulation and electrochemical reactions before they can occur, cushioning the system against the harmful effects of current leakage before they manifest as impurities or pipeline blockages.
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
Prevents electrochemical reactions in the cooling liquid, reducing impurity generation and maintaining system efficiency by effectively transferring leakage current to ground.
Implementation Method 1
the ground cable is electrically connected to the ground plug. Furthermore, the ground cable contacts the water-cooling head, and the ground plug is electrically connected to ground
Implementation Method 2
the water-cooling head is attached to the electronic heat generating component for cooling
Data Source
AI summary
A water-cooling head structure capable of guiding a leakage current and a water-cooling device thereof are provided. The water-cooling head structure includes a water-cooling head and a ground cable set. The water-cooling head includes a metal base plate and an accommodation space recessed from the metal base plate. A plurality of fins is arranged in the accommodation space. A waterproof layer is arranged on the metal base plate to cover the accommodation space and the fins. The ground cable set includes a ground plug and a ground cable electrically connected to each other. The ground cable contacts the water-cooling head. The ground plug is used for ground. Accordingly, the water-cooling head structure is able to transfer a leakage current generated by the water-cooling head to a system circuit, such as a mainboard board, in order to eliminate a residual electrical charge via ground.