Shoulder Screw and Handle Mounting for Blade Server Drives
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Solution Overview
Problem
Existing computer drive mounting systems in blade servers lack a simple, low-profile, and cost-effective solution for securely and efficiently mounting and removing drives without disrupting system operation, especially in high-density configurations.
Innovation Solution
A computer drive apparatus utilizing shoulder screws and a rotatable handle that secures the drive into a mounting chassis with cam pins and guides, allowing for hot-swappable functionality and enhanced leverage for easy removal, while maintaining drive security through a caming action and disengagement ramp.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional drive mounting systems are used in blade servers, then drive security and stability are maintained, but device complexity and cost increase while ease of operation deteriorates
Solution Approach 1:
The mounting system is divided into distinct functional components: shoulder screws for positioning and guide pins for alignment, a handle for operation, and cam pins for securing. This segmentation allows each component to perform its specific function efficiently, simplifying the overall system while maintaining reliability.
Solution Approach 2:
The handle acts as an intermediary tool between the operator and the drive mounting mechanism. By engaging with the cam pins and guide pins, the handle provides mechanical advantage and control, enabling easy mounting and removal operations without requiring complex manual manipulation of the internal components.
2Quantity of substance
If high-density drive configurations are implemented, then space utilization improves, but ease of operation for drive mounting and removal deteriorates
Solution Approach 1:
The mounting system utilizes vertical positioning through guide pins and cam pins that engage from the top and bottom of the drive, respectively. This multi-dimensional engagement allows drives to be mounted and removed vertically without requiring horizontal space manipulation, enabling high-density configurations while maintaining operational ease.
Solution Approach 2:
The guide pins and cam pins are designed to automatically align and secure the drive during insertion. The handle mechanism provides self-latching functionality through the cam pin engagement, eliminating the need for additional fastening operations and simplifying the mounting process in high-density configurations.
3Device complexity
If simple mounting mechanisms are used, then device complexity and cost are reduced, but reliability of drive securing deteriorates
Solution Approach 1:
Different components are assigned specific local functions: shoulder screws provide precise positioning and guide the drive into the correct orientation, while cam pins provide robust securing and prevention of accidental dislodgement. This differentiation of local qualities ensures that each component contributes to overall reliability without adding unnecessary complexity.
Solution Approach 2:
The cam pins utilize a cam mechanism with curved surfaces that engage with corresponding cam surfaces on the drive and chassis. This curved geometry provides progressive engagement and secure locking, ensuring reliable drive securing while maintaining mechanical simplicity and ease of operation.
4Reliability
If secure drive positioning mechanisms are implemented, then reliability of drive securing is improved, but ease of operation for drive removal deteriorates
Solution Approach 1:
The cam pin mechanism transitions from a static locked position during normal operation to a dynamic unlocking position during removal. The handle provides mechanical leverage to reverse the cam action, allowing easy removal while maintaining secure positioning during operation. This dynamic behavior resolves the contradiction between security and ease of operation.
Solution Approach 2:
The guide pins perform preliminary alignment and positioning of the drive before final securing by the cam pins. This preliminary action ensures that the drive is correctly positioned and oriented, making the subsequent removal process easier by pre-establishing the correct geometric relationship between components.
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 solution provides a cost-effective, high-density drive mounting system with secure drive positioning and easy removal capabilities, reducing operational disruptions and system height, while ensuring secure drive placement and easy maintenance.
Implementation Method 1
The computer drive handle may be rotatable over a plurality of cam pins guided by corresponding cam pin guides disposed on the mounting chassis for securing the computer drive in the mounting chassis
Data Source
AI summary
A computer storage enclosure may comprise a mounting chassis and a computer drive apparatus. The mounting chassis may have a plurality of computer drive guides, a plurality of cam pins, and a mounting chassis disengagement ramp. The computer drive apparatus may include a computer drive, a plurality of shoulder screws, and a computer drive handle. The computer drive apparatus may be mounted on the mounting chassis utilizing the shoulder screws guided by the computer drive guides and secured by the computer drive handle, the cam pins, and the shoulder screws. The computer drive apparatus may include a blade drive and be hot-swappable.