Tamperproof Insertion Structure for Electronic Device Casing

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Solution Overview

Problem

Conventional casing structures for electronic devices, such as hard disk drives, can be dismantled by users due to the availability of specialized screws, leading to potential damage and disputes over liability between consumers and manufacturers.

Innovation Solution

A tamperproof insertion structure featuring barb-like protruding portions and resilient protruding plates that engage with an internal thread, causing the plates to deform or rupture when attempting to remove the tamperproof element, thereby preventing unauthorized dismantling and providing evidence of tampering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional screws of special specifications are used as primary fastening components, then the casing structure can prevent users from dismantling the electronic device, but the availability of related screwdrivers still allows users to dismantle the casing structure

Engineering Contradiction:
Improvecasing securityVSAvoiddismantling difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a tamperproof element as an intermediary component between the casing and the fastening mechanism. This element includes resilient protruding plates that engage with internal threads and barb-like protruding portions that abut against the casing bottom, creating a mediator that prevents direct access to the fastening components and eliminates the need for specialized screwdrivers.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the physical state and properties of the fastening system by using resilient protruding plates that can deform elastically during installation but become permanently damaged upon attempted removal. This parameter change from elastic deformation to permanent damage transforms the fastening mechanism from reversible to irreversible, preventing dismantling.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If resilient protruding plates are engaged with an internal thread to clamp casings, then the casing structure becomes more secure, but the resilient protruding plates may deform or rupture when the tamperproof element is removed

Engineering Contradiction:
Improvecasing securityVSAvoidstructural integrity
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent applies beforehand cushioning by designing the resilient protruding plates to engage with the internal thread in a controlled manner during normal operation. The resilient nature of these plates provides a cushioning effect that absorbs installation forces while maintaining secure engagement, preventing premature damage while ensuring reliability.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent converts the potential harm of plate deformation into a beneficial security feature. When someone attempts to dismantle the device, the resilient protruding plates are forced to deform or rupture, which permanently damages the tamperproof element and provides clear evidence of unauthorized access. This transforms structural weakness into a security advantage.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If the tamperproof element is designed to prevent dismantling, then manufacturers can confirm improper dismantling, but the device complexity increases

Engineering Contradiction:
Improvetamper detectionVSAvoidinsertion structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the tamperproof element into distinct functional components: resilient protruding plates for engagement with the internal thread, barb-like protruding portions for abutting against the casing bottom, and a connecting structure. This segmentation allows each component to perform its specific function efficiently while simplifying the overall design and manufacturing process.

Inventive Principle:
Principle #1Segmentation

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 effectively prevents unauthorized access to electronic device components, allowing manufacturers to confirm if the casing has been improperly dismantled, thus resolving liability disputes and enhancing device security.

Implementation Method 1

the leaf spring comprises a plurality of resilient protruding plates protrudingly formed on an outer surface of the tamperproof element

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the resilient protruding plates are stopped by an internal thread until they deform or rupture, thereby allowing the resilient protruding plates to rupture and fall into the penetrating hole or severely deform

Methodology Applied
Scientific EffectPlastic deformation and fracture: Fracture Mechanics

Data Source

PatentUS10015895B2Casing device and insertion structure thereof
Publication Date: 2018.07.03 GETAC TECH CORP
  • US10015895B2 patent drawing
  • US10015895B2 patent drawing
  • US10015895B2 patent drawing

AI summary

A casing device and an insertion structure thereof are provided. The casing device includes a first casing, a second casing, and an insertion structure. The second casing has an engagement structure. The insertion structure includes a tamperproof element. The tamperproof element has one end extended outward to form two barb-like protruding portions and the other end protrudingly provided with a leaf spring. The leaf spring includes resilient protruding plates protrudingly formed on the outer surface of the tamperproof element. Since the resilient protruding plates and the engagement structure are engaged with each other, the insertion structures can clamp the first casing and the second casing to prevent consumers from dismantling an electronic device enclosed by the casing device but enable the electronic device manufacturers to confirm whether the casing device has been inappropriately dismantled by the consumers, thereby settling disputes over damages liability between a consumer and a manufacturer.