Terminal Cover Interlock for Safe Hard Disk Removal
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Solution Overview
Problem
Conventional hard disks cannot be safely inserted or removed while powered on, risking damage and data loss, necessitating a protective mechanism for home terminal users.
Innovation Solution
A terminal design featuring a detachable cover with a protection switch that powers off the hard disk before removal, using a central processing unit to detect the switch's electrical signal variation and initiate data protection and power-off procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hard disk is made detachable for convenient user replacement, then ease of operation is improved, but reliability deteriorates due to risk of damage during random insertion or removal
Solution Approach 1:
The system performs preliminary actions by detecting cover opening through the touch switch and automatically powering off the hard disk before the user physically removes it. This preliminary power-off action prevents data loss and damage that would occur during random removal, thus maintaining reliability while preserving ease of operation.
2Reliability
If a lock mechanism is added to prevent random hard disk removal, then reliability is improved, but device complexity increases
Solution Approach 1:
The cover body serves as an intermediary element that mediates between the user and the hard disk. When opened, it triggers the touch switch which then controls the power-off sequence. This intermediary mechanism provides protection against random removal without requiring a complex direct lock between the hard disk and chassis, thus improving reliability while limiting complexity increase.
3Reliability
If the hard disk is powered off before removal, then reliability is improved, but loss of time occurs during the power-off process
Solution Approach 1:
The system performs the power-off action preliminarily and automatically when the cover is opened, as detected by the touch switch. This eliminates the need for user-initiated power-off sequences and minimizes perceived time loss, as the process occurs automatically in the background during the natural cover-opening action.
Data Source
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AI summary
The present invention provides a terminal, and the terminal includes a body, a cover body covering the body, a circuit board mounted in the body, a central processing unit welded on the circuit board, a control part mounted on the cover body, and a protection switch welded on the circuit board, where a hard disk slot for accommodating a hard disk is disposed in the body, the cover body is detachably mounted on the body, and is configured to seal the hard disk in the hard disk slot, the cover body is opened to drive the control part to open the protection switch, an electrical signal variation is generated due to opening of the protection switch, and after detecting the electrical signal variation, the central processing unit instructs the hard disk to perform data protection and powers off the hard disk.