Cooling Block Assembly With Interlocking Weld Support Geometry
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Solution Overview
Problem
Laser welding during the manufacturing of cooling blocks can cause deformation of the base and cover, leading to short circuits in the fluid pathway and degradation of performance.
Innovation Solution
A mechanical connection is established between the base and cover through inter-engaging components, such as protrusions and recesses, which are formed by milling, to reduce the likelihood of warping during welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If laser welding is used to join the base and cover, then the manufacturing efficiency and strength of the cooling block are improved, but the heat generated during welding causes deformation of the base and cover, leading to short circuits in the fluid pathway
Solution Approach 1:
The protrusions are pre-formed on the base before the welding process. These protrusions engage with recesses in the cover to establish mechanical support and alignment prior to welding, preventing deformation during the subsequent laser welding process. This preliminary structural preparation ensures that the fluid pathway geometry remains precise while still allowing for strong welded joints.
2Productivity
If laser welding is used to join the base and cover, then the manufacturing efficiency is improved, but the heat generated during welding causes short circuits in the fluid pathway
Solution Approach 1:
The protrusions are pre-formed on the base before the welding process. These protrusions engage with recesses in the cover to establish mechanical support and alignment prior to welding, preventing deformation during the subsequent laser welding process. This preliminary structural preparation ensures that the fluid pathway geometry remains precise while still allowing for strong welded joints.
3Stability of the object's composition
If the base and cover are welded together, then the structural integrity is improved, but the heat from welding causes deformation and potential short circuits
Solution Approach 1:
The protrusions are pre-formed on the base before the welding process. These protrusions engage with recesses in the cover to establish mechanical support and alignment prior to welding, preventing deformation during the subsequent laser welding process. This preliminary structural preparation ensures that the fluid pathway geometry remains precise while still allowing for strong welded joints.
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
This method reduces the risk of deformation and short-circuiting, ensuring a secure and efficient fluid pathway in the cooling block, thereby maintaining performance.
Implementation Method 1
a structural or mechanical connection between inter-engaging components of the base and the cover during manufacturing of the cooling block
Implementation Method 2
During the laser welding process, a large amount of heat is generated which often leads to deformation of the geometry of the base and/or the cover
Implementation Method 3
water (or other fluid) is made to flow through a conduit in the cooling block to absorb heat from the heat-generating electronic component
Data Source
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AI summary
A method for making a cooling block for cooling a heat-generating electronic component. The method includes providing a base defining an open passage and a protrusion and providing a cover positionable on the base to close the open passage forming a fluid conduit. The cover has an underside defining a recess which receives at least a free end of the protrusion. The method includes positioning the cover on the base such that at least the free end of the protrusion is received in the recess and the open passage is closed to form the fluid conduit and welding an outer side of the cover, along a weld path which includes at least a portion on the cover above the recess. A cooling block made by the method.