Mobile Hard Disk Drive Tray with Spring Plate Retention
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Solution Overview
Problem
Conventional hard disk drives require complex and labor-intensive installation procedures, can lead to connection instability due to screw wear or breakage, and hinder heat dissipation due to close contact between the hard disk and circuit board.
Innovation Solution
A mobile hard disk drive design featuring a detachable hard disk tray with arched spring plates for friction engagement within a holder box, allowing for easy replacement and improved heat dissipation through spacer columns creating an open space between the circuit board and holder box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hard disk is fixedly fastened to the circuit board with screws, then the connection stability is improved, but the installation procedure becomes complex and time-consuming requiring hand tools
Solution Approach 1:
The hard disk drive is divided into separate modular components: the circuit board assembly and the hard disk tray assembly. The hard disk tray can be independently inserted and removed from the holder box without affecting the circuit board, eliminating the need for complex screw-based fastening and hand tools while maintaining secure connection through the spring plate retention mechanism.
Solution Approach 2:
The holder box serves as an intermediary structure between the circuit board and the hard disk tray. It provides a receiving chamber that guides and secures the hard disk tray through friction engagement of spring plates with lateral walls, while also providing mounting locations for hand screws that can securely fasten the tray without requiring tools for installation or removal.
2Adaptability or versatility
If the hard disk is frequently mounted and dismounted from the circuit board, then the replacement flexibility is improved, but the screws or screw holes wear or break leading to connection instability
Solution Approach 1:
By separating the hard disk tray from the circuit board into independent modular assemblies connected through the holder box, the system allows frequent tray replacements without repeatedly fastening and unfastening screws on the circuit board itself. The holder box absorbs the mechanical stress of frequent insertions and removals through its spring plate friction engagement mechanism, protecting the circuit board's screw holes from wear and breakage.
Solution Approach 2:
The spring plates are designed to provide dynamic friction engagement with the inner lateral walls of the receiving chamber. This elastic friction-based retention mechanism accommodates frequent insertions and removals of the hard disk tray without causing wear or damage to critical connection points, maintaining connection stability through controlled elastic deformation rather than rigid mechanical fastening.
3Device complexity
If the hard disk is kept in close contact with the circuit board surface, then the structural compactness is improved, but the heat dissipation is hindered
Solution Approach 1:
The holder box acts as an intermediary structure that positions the hard disk tray at an optimized distance from the circuit board. The receiving chamber of the holder box provides a designated space that maintains proper spacing, allowing heat to dissipate from both the circuit board and the hard disk tray without requiring them to be in direct contact. This intermediary structure achieves both compact integration and adequate thermal management.
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
Facilitates quick and tool-free hard disk replacement while ensuring connection stability and enhanced heat dissipation, reducing wear on screws and improving overall installation efficiency.
Implementation Method 1
force arched spring plates into friction engagement with two opposite inner lateral walls in the receiving chamber
Implementation Method 2
two hand screws that are mounted at an end plate of the hard disk tray for threading into respective locating screw holes at the face panel
Implementation Method 3
an open space is defined between the circuit board and the holder box for heat dissipation
Data Source
AI summary
A mobile hard disk drive includes an electrical module including a circuit board, a face panel and a holder box, and a hard disk tray detachably insertable through an insertion slot in the face panel into a receiving chamber in the holder box to force arched spring plates thereof into friction engagement with two opposite inner lateral walls in the receiving chamber of the holder box and lockable to the face panel by two hand screws that are mounted at an end plate of the hard disk tray for threading into respective locating screw holes at the face panel to lock the hard disk tray to the face panel of the electrical module.