Liquid Cooling Plate Friction Welding to Prevent Channel Gas Damage
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Solution Overview
Problem
Existing liquid cooling plates are prone to deformation and damage due to gas generation from contact between welding slag and cooling liquid, leading to potential damage of attached components.
Innovation Solution
The liquid cooling heat dissipation plate employs friction welding to fasten the fin base, seal plate unit, and mounting surface, eliminating the need for brazing flux and preventing gas generation, thereby enhancing structural integrity and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If braze welding is used to fasten components, then manufacturing ease is improved, but gas is generated due to contact between welding slag and cooling liquid causing deformation and damage
Solution Approach 1:
The patent replaces the chemical braze welding process with a mechanical friction welding process. The friction welding device applies rotational friction to join components, eliminating the need for braze welding flux and preventing harmful chemical reactions with cooling liquid while maintaining manufacturing efficiency
Solution Approach 2:
The patent changes the welding process parameters from chemical-based braze welding to mechanical-based friction welding. By altering the fundamental welding mechanism and eliminating flux materials, the system prevents gas generation and component damage while maintaining joint strength
2Reliability
If friction welding is used to fasten components, then gas generation is prevented improving reliability, but manufacturing complexity increases
Solution Approach 1:
The friction welding system is divided into independent functional modules: a rotating clamp assembly for holding and rotating workpieces, a pressing clamp assembly for applying axial force, and a control system. This modular segmentation manages complexity by organizing functions into discrete, manageable units
Solution Approach 2:
The patent introduces a friction welding device as an intermediary mechanism between the components to be joined. This device mediates the joining process through controlled rotational friction and axial pressing, providing precise control over the welding parameters while isolating the complexity of the welding process from the component design
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 solution effectively prevents deformation and damage, extending the service life of the liquid cooling plate and ensuring the safety of attached components by avoiding chemical reactions between welding slag and cooling liquid.
Implementation Method 1
any two of a fin base, a seal plate unit, and a mounting surface of the liquid cooling heat dissipation plate are fastened by friction welding
Implementation Method 2
the penetrating channel respectively penetrates the two mounting surfaces; the penetrating channel between the liquid inlet and the liquid outlet forms a cooling liquid flow channel
Data Source
AI summary
This application discloses a liquid cooling heat dissipation plate and a liquid cooling electronic device, wherein the liquid cooling heat dissipation plate includes a cooling plate unit, a liquid inlet and a liquid outlet are provided at side walls of the cooling plate unit, the liquid inlet is in connection with the liquid outlet through a penetrating channel, and the penetrating channel respectively penetrates two opposite mounting surfaces of the cooling plate unit; further, a pair of fin bases are respectively lapped at positions on the two mounting surfaces corresponding to the same straight channel, and the seal plate unit is lapped at a position on the mounting surface corresponding to positions in the penetrating channel that are not covered by the fin base; and any two of the fin base, the seal plate unit, and the mounting surface are fastened by friction welding.