Tamper-Evident Housing Closure With Breakable Internal Connection
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Solution Overview
Problem
Conventional methods for detecting unauthorized access to electronic components in housings are easily circumvented, offering no effective protection against tampering or misuse, and existing solutions do not provide reliable detection of unauthorized openings.
Innovation Solution
A housing design with a first and second housing part connected by a mechanical component featuring a weaker second connection that breaks upon unauthorized opening, accompanied by a detector that sends an electrical or electromagnetic signal to indicate the breach, with components designed to be virtually invisible and capable of issuing alerts or altering functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If seals or adhesives are applied to the device housing, then the housing can be sealed, but the seal offers no protection against misuse and can be repaired later
Solution Approach 1:
The housing is divided into two separable parts (first housing part and second housing part) that can be connected and disconnected. This segmentation allows the housing to be opened for access while maintaining security through the breakable connection mechanism, resolving the contradiction between sealability and unauthorized access detection.
Solution Approach 2:
A mechanical component with a predetermined breakable connection is installed in advance within the housing. This preliminary action ensures that any attempt to open the housing will automatically break the connection and trigger detection, providing proactive security rather than relying on post-opening inspection of seals or adhesives.
2Reliability
If door contacts are used to electronically report access, then access can be detected, but potential attackers can learn to circumvent these obvious safeguards
Solution Approach 1:
The patent replaces conventional electronic door contacts with a mechanical breakable connection system. The mechanical component with its predetermined weak connection provides inherent physical security that is harder to circumvent than electronic sensors, as the mechanical breakage itself serves as the detection mechanism rather than relying on electronic signals that can be fooled or bypassed.
3Reliability
If a mechanical component with a breakable connection is used, then unauthorized opening can be detected, but the second connection must be weaker than the first connection
Solution Approach 1:
The mechanical component has non-uniform structural properties with a deliberately designed weak connection point (second connection) that is locally weaker than the first connection. This local quality differentiation ensures that when force is applied to open the housing, the breakage occurs predictably at the predetermined weak point, allowing reliable detection while maintaining overall structural integrity through the stronger first connection.
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
The solution provides reliable detection of unauthorized access, issues alerts, and can prevent or limit operation after unauthorized opening, ensuring tampering is detected and prevented, even if the breach is not immediately apparent.
Implementation Method 1
a detector configured to send an electrical signal through the mechanical component and to indicate that the housing has been opened by a change in this electrical signal
Implementation Method 2
a mechanical component with a first connection and a second connection for connecting the mechanical component inside the housing to the first housing part and to the second housing part of the housing
Data Source
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AI summary
A housing for at least one component (115) is disclosed, comprising a first housing part (110) and a second housing part (120) that can be connected to each other to close the housing. The housing includes a mechanical component (130) with a first connection (131) and a second connection (132) for connecting the mechanical component (130) inside the housing to the first housing part (110) and to the second housing part (120) of the housing, wherein the second connection (132) is weaker than the first connection (131) and a break in the second connection (132) indicates that the housing has opened.