Housing-Supported Tamper Switch Arm Without Mounting Fasteners
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Solution Overview
Problem
Existing tamper detection mechanisms require direct coupling to a mounting surface via a fastener, which increases installation complexity and risk of missed fasteners, compromising reliability and efficiency.
Innovation Solution
A tamper detection mechanism that operates without direct coupling to the mounting surface, using an actuation arm that moves between engaged and released positions to detect housing removal, eliminating the need for fasteners and simplifying installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fastener is used to directly couple the tamper mechanism to the mounting surface, then the tamper detection function can be implemented, but the device complexity and installation complexity increase
Solution Approach 1:
The patent combines the tamper mechanism with the housing assembly, where the actuation arm is supported by the housing itself rather than requiring separate fastening to the mounting surface. The housing structure integrates the support function, eliminating the need for additional fasteners and reducing installation complexity while maintaining tamper detection reliability.
Solution Approach 2:
The housing serves multiple functions: it protects internal components, provides structural support, and acts as the mounting interface. By making the housing multi-functional, the patent eliminates the need for separate fastening components, simplifying both the device structure and installation process while maintaining reliable tamper detection.
2Reliability
If a fastener is used to affix the tamper mechanism independently, then the tamper switch can be engaged, but the quantity of components increases
Solution Approach 1:
The support function previously requiring a separate fastener is merged into the housing structure. The housing directly supports the actuation arm at both engaged and released positions, eliminating the need for additional fastening components while ensuring reliable tamper switch engagement through the integrated support structure.
3Reliability
If direct coupling via fastener is used, then the actuation arm can be securely positioned, but the installation time increases
Solution Approach 1:
The housing integrates the support function for the actuation arm, eliminating the need for separate fastening operations. The actuation arm is supported directly by the housing structure at both engaged and released positions, reducing installation steps and time while maintaining reliable positioning through the integrated support design.
Solution Approach 2:
The housing is pre-configured with the necessary support structures and features to hold the actuation arm in both engaged and released positions. This preliminary integration of support functions into the housing eliminates the need for additional fastening steps during installation, reducing installation time while ensuring reliable actuation arm positioning.
Data Source
AI summary
A device includes a housing, a tamper switch supported at the housing, and an actuation arm supported at the housing. The actuation arm includes an actuation column. The actuation arm is movable between a tamper switch engaged position and a tamper switch released position. In the tamper switch engaged position, the actuation column contacts the tamper switch and the actuation arm is at a first angle relative to the tamper switch. In the tamper switch released position, the actuation column is spaced apart from the tamper switch and the actuation arm is at a second angle relative to the tamper switch. The second angle is different than the first angle.