Key Assembly for Mobile Devices with Flush-Mounted Flexible Actuators
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Solution Overview
Problem
Mobile device designers face challenges in creating aesthetically pleasing designs by eliminating protruding components and unsightly seams, particularly in slide-style handsets with limited internal space and numerous features.
Innovation Solution
A mobile device design incorporating a housing with flexible actuators and stiffening components that align with transition points, allowing for flush-mounted actuators and reduced seams, along with flexible circuits that relay signals and cushioning elements for impact protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If discrete volume buttons or dedicated controls are added to the side of a mobile device, then functionality is improved, but the device appears bulky and disjointed with visible seams
Solution Approach 1:
The patent combines multiple functions into a single integrated control mechanism. The control element integrates volume adjustment, power on/off, and other device controls into one unified component that is embedded within the housing, eliminating the need for separate discrete buttons and reducing visual seams.
Solution Approach 2:
The control element is nested within the housing structure itself. The control is embedded in a recess of the housing, with only a portion protruding slightly or remaining flush with the housing surface, creating a nested arrangement that maintains aesthetic appearance while providing functionality.
2Shape
If flush-mounted components are implemented on the surfaces of mobile devices, then aesthetic appearance is improved, but the amount of available internal space is limited
Solution Approach 1:
The patent utilizes the depth dimension by creating a recess in the housing that accommodates the control element. This allows the control to be flush-mounted with the housing surface while having sufficient internal volume within the recess to house the control mechanism, effectively using the third dimension to resolve the space conflict.
3Shape
If components are designed to eliminate protrusions from the main body, then aesthetic appearance is improved, but manufacturing complexity increases
Solution Approach 1:
The housing is segmented into multiple portions: a main housing body and a separate control element. This segmentation allows each component to be manufactured independently using standard processes, then assembled together. The control element can be produced as a separate module and embedded in the housing recess, simplifying the overall manufacturing process compared to creating a fully integrated monolithic structure.
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 design achieves a reduced profile and improved appearance by minimizing visible seams and maintaining functionality, while also providing protection against drops and impacts.
Implementation Method 1
a key assembly that includes a flexible actuator
Implementation Method 2
cushioning elements for impact protection
Data Source
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AI summary
A mobile device (200, 300) is described herein in which the mobile device (200, 300) has a housing (210, 310) that includes a transition point (280, 375) and an actuator (250, 350) that can be flexible and that can be used to initiate a predetermined action. The actuator (250, 350) can include a transition point (260, 360). The mobile device (200, 300) can also have a stiffening component (510, 710) that can be configured to engage the actuator (250, 350) and can also have a flexible circuit (520, 720). In one arrangement, the flexible circuit (520, 720) can be coupled to the stiffening component (510, 710) and the flexible circuit (520, 720) can be configured to relay signals in response to a force being applied to the actuator (250, 350). In another arrangement, the actuator (250, 350) can be positioned such that the transition point (260, 360) of the actuator (250, 350) substantially aligns with the transition point (280, 375) of the housing (210, 310) of the mobile device (200, 300).