USB Port Locking Device with Segmented Blocking Mechanism
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Solution Overview
Problem
The widespread use of USB ports in computers has made it easy for unauthorized access and virus infections, leading to data loss and information theft, necessitating a solution to physically block USB ports and prevent unauthorized device connections.
Innovation Solution
A USB port locking device that includes a blocking member with a locking mechanism, a signal connection part, and a release key unit, which physically blocks unauthorized USB connections and requires a specific key for removal, ensuring only authorized devices can access the USB port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If USB ports are made universally accessible for easy device connection, then ease of operation is improved, but security against unauthorized access and virus infection deteriorates
Solution Approach 1:
The USB port locking device segments the USB port access control by introducing a separate locking mechanism that can independently block or allow access to the USB port. The locking member divides the port into a locked state (blocking unauthorized devices) and an unlocked state (allowing authorized devices), thus resolving the contradiction between universal accessibility and security.
2Object-affected harmful factors
If a locking mechanism is added to physically block USB ports for security, then security against unauthorized access is improved, but device complexity increases
Solution Approach 1:
The locking member is nested within the housing structure, and the blocking member is nested within the locking mechanism. This nested configuration allows the locking device to be compact and integrated into the USB port area without requiring excessive external space or complex assembly, thus reducing the overall device complexity while maintaining effective security blocking.
3Object-affected harmful factors
If a blocking member is inserted into the USB port to prevent unauthorized connections, then security is improved, but ease of operation for authorized users deteriorates
Solution Approach 1:
The locking member is designed to be movable between a locked position (blocking the USB port) and an unlocked position (allowing access). This dynamic capability enables authorized users to easily switch the port state by manipulating the locking mechanism, thus maintaining ease of operation for authorized users while preventing unauthorized access when locked.
4Object-affected harmful factors
If a locking mechanism requires a key for operation, then security against unauthorized removal is improved, but ease of operation deteriorates
Solution Approach 1:
The locking mechanism is designed to work with a standard USB connector that serves dual purposes: it functions as both the data/power connection interface and the key for the locking mechanism. The connector's physical structure enables it to engage with and operate the locking member, eliminating the need for a separate key component and simplifying the operation for authorized users.
Data Source
AI summary
Provided is a USB port locking device including: a blocking member having a blocking coupling part to block access of an external device; an external USB port part connected to the blocking member and to which an external USB connection port is insertively coupled; a signal connection part enabling signal transmission between a terminal inside the USB port of the electronic device and the external USB connecting port; a locking member selectively locked to the electronic device so that the blocking member is not forcedly removed; a stopping member selectively blocking an unauthorized external USB connecting port from being inserted into the external USB port part; and a lock member controlling a locking operation of the locking member and a blocking operation of the stopping member by interfering with the locking member and the stopping member when they are inserted into the blocking member.