Drive Bay Cam Surface Structure for Dense Hard Drive Carriers
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Solution Overview
Problem
Existing information handling systems face challenges in accommodating multiple hard drive carriers due to space constraints and the need for strong cam surfaces to withstand insertion and retention forces, as traditional bent tabs are inadequate in withstanding these requirements.
Innovation Solution
The implementation of an extruded portion on the interior side surface of the device bay, which serves as a cam surface, provides enhanced strength and tolerance to accommodate hard drive carriers by protruding edges surrounding a hole for the lever arm, allowing secure locking and retention within a compact space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If bent tabs are used as cam surfaces in drive bays, then the structure is simple and easy to manufacture, but they cannot withstand the insertion and retention force requirements of multiple hard drive carriers
Solution Approach 1:
The cam surface is segmented into multiple features including a cam surface, a cam lock surface, and a cam release surface, each performing a specific function in the insertion and retention process. This segmentation allows the structure to handle high forces through distributed mechanical features rather than a single overloaded element
Solution Approach 2:
The cam surface structure is extended into multiple dimensions with vertical and horizontal features. The cam lock surface and cam release surface create a three-dimensional engagement system that provides superior force resistance compared to traditional two-dimensional bent tabs
2Quantity of substance
If multiple hard drive carriers are inserted into the drive bay, then drive density increases, but space constraints limit the distance between the cam surface and the front of the drive bay
Solution Approach 1:
The cam surface structure utilizes three-dimensional space efficiently by creating vertical extrusions and multi-level surfaces. This allows the cam mechanism to function effectively within a reduced horizontal distance from the drive bay front, enabling tighter carrier spacing
Solution Approach 2:
The cam surface features are nested within the drive bay structure, with the cam lock surface and cam release surface integrated into the same vertical space. This nesting allows multiple functional surfaces to coexist in a compact arrangement, minimizing the space required for carrier insertion
3Quantity of substance
If multiple hard drive carriers are inserted into the drive bay, then drive density increases, but the requirement for high insertion and retention force demands greater strength in the cam surface
Solution Approach 1:
The cam surface is divided into multiple functional segments including a cam surface for insertion, a cam lock surface for retention, and a cam release surface for ejection. This segmentation distributes the mechanical loads across multiple features, allowing each segment to be optimized for its specific force requirement
Solution Approach 2:
The cam surface structure combines multiple material properties and structural features to achieve high strength. The use of extruded portions with varying thicknesses and the integration of lock and release surfaces create a composite mechanical system that withstands the cumulative forces of multiple carriers
Data Source
AI summary
A peripheral device assembly is disclosed wherein the assembly includes a device bay for receiving a peripheral device carrier. An interior side surface of the device bay defines at least one extrusion portion surrounding a hole for receiving a first end of a lever arm of the peripheral device carrier, and the extrusion portion comprises edges protruding from the interior side surface of the device bay toward an exterior side surface of the device bay.