Electronic Device Stand With Elastic Suction Body
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Solution Overview
Problem
Existing electronic device stands, such as those for liquid crystal television receivers, face challenges in preventing falling due to external forces like earthquakes, with current solutions either increasing space requirements, being cumbersome to use, or experiencing degradation in suction force over time.
Innovation Solution
A stand with a base portion and an elastic body that generates negative pressure only when an external force is applied, using a valve mechanism to control air flow and maintain suction, allowing for secure attachment to a surface without constant negative pressure and reducing material degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suction cup is continuously attached to generate negative pressure to prevent falling, then the anti-falling reliability is improved, but the elastic body degrades over time due to constant stress
Solution Approach 1:
The patent applies dynamics by making the suction state changeable rather than static. The elastic body can transition between a suction state (when external force is detected) and a non-suction state (when no external force is present). This dynamic adjustment allows the system to maintain reliability when needed while reducing degradation during normal operation, effectively resolving the contradiction between continuous anti-falling protection and elastic body service life.
2Reliability
If a fixing belt is used to prevent falling, then the anti-falling reliability is improved, but the ease of operation deteriorates due to manual release requirements
Solution Approach 1:
The patent implements self-service through an automatic release mechanism. When the electronic device is lifted, the elastic body naturally returns to its original state, automatically releasing the suction connection without requiring manual intervention. This eliminates the need for users to manually release fixing belts while maintaining secure attachment during normal operation, thus improving ease of operation while preserving anti-falling reliability.
Solution Approach 2:
The system uses feedback from the external force detection to control the suction state. When lifting force is detected, the system responds by releasing the suction connection; when the device is placed back, suction is reestablished. This automatic feedback control eliminates manual operation requirements while maintaining security, resolving the contradiction between reliability and ease of operation.
3Reliability
If the elastic body is made harder to resist external force, then the anti-falling reliability is improved, but the suction force generation capability worsens
Solution Approach 1:
The patent resolves this contradiction through dynamic stiffness adjustment. The elastic body is designed to be soft during normal operation to easily generate suction force by forming gaps, but becomes effectively harder when external force is applied, as it can then generate strong negative pressure in response to the force. This dynamic behavior allows the same component to satisfy both requirements at different operational stages.
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 stand effectively prevents the electronic device from falling with a simple configuration, maintaining suction force over time and reducing material degradation, while allowing easy lifting and reattachment without manual release of the fixing belt.
Implementation Method 1
The elastic body generates negative pressure in the gap by being elastically deformed in the direction to separate from the sucked surface when the external force is exerted on the stand
Implementation Method 2
The elastic body has a suction surface that is attached by suction to the sucked surface with negative pressure generated in a gap between the suction surface and the sucked surface
Data Source
AI summary
An electronic device includes a device main body and a stand that is placed on a sucked surface and supports the device main body. The stand includes a base portion and an elastic body that is disposed on a lower surface of the base portion and has a suction surface that is attached by suction to the sucked surface with negative pressure generated in a gap between the suction surface and the sucked surface. The elastic body generates no negative pressure in the gap when no external force is exerted on the stand in a direction to separate from the sucked surface while the stand is placed on the sucked surface. The elastic body generates negative pressure in the gap by being elastically deformed in the direction to separate from the sucked surface when the external force is exerted on the stand while the stand is placed on the sucked surface.