Shape-Memory Alloy Cover for Sealed Component Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile device enclosures have openings that can lead to exposure of internal components to environmental hazards like water, humidity, dust, and electrostatic discharge, posing risks to the internal circuitry.
Innovation Solution
A shape-memory alloy (SMA) cover that transitions between open and closed shapes in response to context, providing access to internal components while protecting them from external elements by sealing the openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If openings are provided in the exterior housing to facilitate access to internal components, then ease of operation is improved, but protection against environmental hazards deteriorates
Solution Approach 1:
The patent employs a shape-memory alloy cover that dynamically transitions between open and closed states based on environmental conditions and user interaction. The cover is not static but adapts its configuration, remaining closed to protect components during normal operation and opening when access is required or when environmental hazards are detected, thus resolving the contradiction between accessibility and protection.
Solution Approach 2:
The shape-memory alloy cover automatically responds to environmental hazards such as water, humidity, dust, and electrostatic discharge by transitioning to a closed state without requiring manual intervention. The system self-monitors and self-protects the internal components, eliminating the need for separate sensing and actuation mechanisms while maintaining both protection and accessibility.
2Object-affected harmful factors
If the cover remains closed to protect internal components, then protection against environmental hazards is improved, but ease of operation deteriorates
Solution Approach 1:
The cover transitions from a static closed state to a dynamic system that can open and close based on real-time conditions. When a user attempts to access internal components or when environmental hazards are present, the cover automatically adjusts its state, providing protection when needed and accessibility when required without manual manipulation.
Solution Approach 2:
The patent replaces traditional mechanical locking mechanisms or manual covers with a shape-memory alloy-based system that uses material property changes (phase transitions) to control the cover state. This eliminates complex mechanical actuators, springs, and latches, simplifying the system while maintaining both protection and ease of access.
3Object-affected harmful factors
If manually removable seals are used to cover openings, then protection against environmental hazards is improved, but device complexity increases
Solution Approach 1:
The shape-memory alloy cover autonomously responds to environmental hazards and user interaction without requiring separate control systems, sensors, or actuators. The material's inherent phase transition properties enable automatic opening and closing, eliminating the need for complex mechanical seals, motors, or electronic control circuits that would increase device complexity.
Solution Approach 2:
The patent replaces complex mechanical seal systems with a shape-memory alloy cover that uses thermal or stress-induced phase transitions to control its state. This material-based solution eliminates the need for mechanical actuators, springs, latches, and control electronics, significantly reducing device complexity while maintaining effective protection.
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 SMA cover effectively seals openings in mobile device enclosures, preventing water, humidity, and electrostatic discharge from damaging internal components, ensuring the internal circuitry remains protected.
Implementation Method 1
A shape-memory alloy (SMA) cover 114 transitions between open and closed shapes to provide access to internal components while protecting them from external elements, using energy such as heat or force to change its shape
Data Source
AI summary
An apparatus comprising an enclosure and a cover comprising a shape-memory alloy is provided. The enclosure has at least one void that facilitates access to a component of the apparatus. The cover has at least an opened shape and closed shape, wherein the cover allows access to the component via the void in the opened shape and covers at least part of the void in the closed shape, wherein the cover transitions from the closed shape to the opened shape in response to the apparatus being accessed.