Tool-less HDD Mounting Device with Flexible Member Fastening
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Solution Overview
Problem
Conventional nut-and-bolt structures for hard disk drive (HDD) mounting in servers are costly and time-consuming to replace, leading to high maintenance costs and potential service disruptions due to frequent HDD failures.
Innovation Solution
A tool-less mounting device using a tray with flexible members and a backplane, which employs elastic deformation to automatically fasten and unfasten HDDs without tools, allowing for quick and cost-effective replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional nut-and-bolt structure is used to fasten HDD, then the HDD is securely fixed in the server, but the replacement process becomes time-consuming and costly
Solution Approach 1:
The patent replaces the conventional nut-and-bolt mechanical fastening system with a tool-less mounting mechanism that uses elastic deformation of flexible members to automatically secure and release HDDs. This substitution eliminates the need for tools and manual operations, enabling rapid HDD replacement by simply inserting or removing the drive without threading bolts or tightening nuts.
Solution Approach 2:
The flexible members are designed to automatically fasten the HDD upon insertion through elastic deformation, and automatically release it upon removal. The system serves itself by using the insertion/removal motion to trigger the fastening/unfastening action, eliminating the need for separate fastening operations or tools.
2Productivity
If a tool-less mounting structure is implemented, then HDD replacement becomes fast and simple, but the structural complexity of the mounting device increases
Solution Approach 1:
The patent employs flexible members made of elastic material that can deform and return to their original shape. These thin, flexible components replace complex multi-part mechanical fastening systems, achieving tool-less operation while maintaining relatively simple device architecture. The flexible members' ability to bend and rebound provides the necessary fastening function without requiring multiple separate components.
Solution Approach 2:
The mounting mechanism utilizes changes in the physical state of the flexible members - specifically their elastic deformation parameters - to achieve fastening and release. By controlling the degree of deformation through insertion motion, the system transitions between locked and unlocked states without complex mechanical linkages or additional actuating mechanisms.
3Ease of repair
If frequent HDD replacement is enabled, then maintenance costs are reduced, but the reliability of the mounting structure during operation must be maintained
Solution Approach 1:
The mounting structure transitions from a static nut-and-bolt system to a dynamic flexible member system that can adapt its state. During normal operation, the flexible members maintain constant elastic pressure to securely hold the HDD. During replacement, the same flexible members dynamically respond to insertion/removal forces, automatically releasing the drive. This dynamic behavior allows the structure to simultaneously provide operational reliability and maintenance ease.
Solution Approach 2:
The flexible members are pre-configured in a state of elastic tension that automatically engages with the HDD upon insertion. This preliminary preparation of the fastening mechanism ensures that the HDD is immediately secured upon installation without requiring additional fastening steps, while also ensuring that removal automatically releases the drive, facilitating easy maintenance.
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
Enables rapid and tool-free HDD replacement, reducing maintenance costs and minimizing service disruptions while supporting multiple HDDs and maintaining scalability.
Implementation Method 1
the arm of the flexible member gradually changes from opening outwardly to closing inwardly due to elastic deformation as it touches the sidewall of the HDD mounting bracket and is gradually pressured
Implementation Method 2
the round portion of the flexible member assists the tool-less mounting device for HDD to slide out of the sidewalls of the HDD mounting bracket
Data Source
AI summary
A tool-less mounting device for hard disk drive (HDD) is provided. The mounting device has a tray, at least one flexible member, a backplane, and at least one HDD. The tray has a base and two sidewalls. The flexible member has a fixed portion and an arm. The backplane is disposed on the base between the sidewalls, and has a first connector and a second connector. The HDD is coupled to the first connector of the backplane.