Hinge Bracket Welding Recesses to Prevent Casing Delamination
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Solution Overview
Problem
There are issues of delamination of a hinge bracket from a casing of an information handling system, which affects the structural integrity and functionality of the system.
Innovation Solution
The solution involves forming welding recessions in the hinge bracket with a specific thickness and shape, such that when laser-welded to the casing, the welding points are positioned within these recessions to form radial patterns, maintaining the external surface of the casing free of physical impact and ensuring a strong bond between the bracket and the casing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding points are applied directly on the external surface of the casing, then the bracket is securely attached to the casing, but the external surface appearance is damaged and structural integrity is compromised
Solution Approach 1:
The patent applies local quality by creating welding recessions only in specific locations where brackets need to be attached, rather than welding across the entire external surface. The recessions are strategically positioned to provide secure attachment points while leaving the rest of the external surface intact and aesthetically pleasing. This localized approach allows the casing to maintain its appearance in non-welding areas while achieving strong bonds at critical attachment points.
Solution Approach 2:
The patent moves the welding operation from the external surface (2D plane) to the internal surface by creating recessions that extend inward. This dimensional transition allows welding points to be positioned on the internal surface, completely shielding them from view on the external surface. The welding recessions create a third dimension (depth) that accommodates the welding process while preserving the external aesthetic.
2Object-affected harmful factors
If welding points are positioned on the internal surface within recessions, then the external surface appearance is maintained, but the bond strength between bracket and casing may be reduced
Solution Approach 1:
The patent applies parameter changes by carefully controlling the dimensions and geometry of the welding recessions. The recessions are designed with specific depth, width, and shape parameters that optimize both the aesthetic appearance and the bonding strength. By adjusting these geometric parameters, the internal surface provides adequate surface area and structural support for strong welding bonds while maintaining the desired external appearance.
3Strength
If multiple welding points are distributed across the casing surface, then the bracket attachment is strengthened, but the complexity of the welding process and potential surface damage increase
Solution Approach 1:
The patent applies segmentation by dividing the welding process into discrete, localized recessions rather than attempting to weld across the entire surface. Each welding recession is a separate, defined location that can be independently prepared and welded. This segmentation simplifies the overall process by breaking it down into manageable segments while achieving distributed attachment strength across multiple points.
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 effectively prevents delamination by creating a strong and durable bond between the hinge bracket and the casing, maintaining the external surface appearance and enhancing the structural integrity of the information handling system.
Implementation Method 1
coupling the bracket to an internal surface of the casing, including welding the bracket to the casing at a plurality of welding points within the welding recessions forming radial welding patterns in each respective welding recession
Data Source
AI summary
An information handling system chassis, including: a casing including an internal surface and an external surface, the internal surface positioned opposite to the external surface defining a first distance therebetween; and a bracket including a plurality of welding recessions, wherein the bracket is coupled to the internal surface of the casing by a plurality of welding points within the welding recessions forming radial welding patterns in each respective welding recession, wherein a second distance defined between the internal surface of the casing and a nadir surface of each of the welding recessions is approximately 50% of the first distance.