Latch Release Structure That Blocks Unauthorized Tool Access
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Solution Overview
Problem
Existing connection structures in electronic devices, such as in-flight entertainment systems, are vulnerable to unexpected disconnection due to unauthorized access, posing a risk of damage or breakage from unauthorized tools like toothpicks.
Innovation Solution
A connection device with a latch mechanism featuring a first through hole wider than a second through hole, allowing only specific tools to detach units, and a stopper to prevent unauthorized access, ensuring secure attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple through hole is provided in the casing for latch operation, then ease of operation is improved, but reliability deteriorates due to unauthorized access by unauthorized tools
Solution Approach 1:
The pressing portion is designed with a specific local geometry (concave shape with bottom surface) that requires a corresponding tool shape to access. This local quality differentiation allows the same through hole to serve both ease of operation for authorized users and reliability protection against unauthorized tools, as only tools with the matching concave shape can effectively press the latch release portion.
2Ease of operation
If the through hole width is increased to allow tool access, then ease of operation is improved, but object-generated harmful factors worsen due to potential damage from unauthorized tools
Solution Approach 1:
The pressing portion's concave shape creates a localized access requirement that filters tools by shape rather than size. This allows the through hole to be sufficiently large for tool access while the specific local geometry of the pressing portion prevents unauthorized tools (those without the matching concave shape) from causing harm, thus resolving the contradiction between ease of operation and prevention of harmful factors.
Data Source
AI summary
There is provided a connection device that includes a first unit and a second unit, which are attachably and detachably connected to each other. The connection device includes: a casing of the first unit; a latch that is provided inside the casing of the first unit and includes a pressing portion; and an engagement portion provided in the second unit and configured to engage with the latch. The latch is movable when the pressing portion is pressed. The casing is provided with a first through hole along a predetermined direction. The pressing portion is provided with a second through hole along the predetermined direction. A width of the first through hole is greater than a width of the second through hole.