Arcuate Frame Guard for Portable Electric Device Impact Protection
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Solution Overview
Problem
Conventional portable electric devices, such as radios and acoustic reproducing devices, face issues with durability against external impacts and manufacturing costs due to protruding operation sections and complex frame guards, and lack compatibility with various portable acoustic reproducing devices, which can lead to damage from external factors like construction site hazards and water exposure.
Innovation Solution
A portable electric device with a frame guard having arcuate portions and a connector unit that allows for secure attachment and electrical connection to various portable acoustic reproducing devices, featuring a triangular cross-sectional shape for improved durability and reduced component count, and a mounting system with cushioning to absorb impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a frame guard with bar-like guards disposed at positions corresponding to sides of the device body is provided, then the device body is protected against external impact, but the operation section that protrudes further frontward than the guard may collide with falling objects and the angulated connection portions cannot reliably disperse impact
Solution Approach 1:
The connection portions are designed with arcuate (curved) shapes instead of angulated (sharp-cornered) shapes. This curvature allows impact forces to be distributed more evenly along the guard structure, preventing stress concentration at sharp corners and improving the overall reliability of the frame guard in protecting the device body.
2Reliability
If guards are disposed corresponding to the sides of the cuboid device body forming a quadrangular shape, then the device body is protected, but the number of guards and connection members increases manufacturing cost
Solution Approach 1:
The frame guard transitions from a symmetric quadrangular shape to an asymmetric triangular shape in plan view. This asymmetric design reduces the number of guards and connection members required while maintaining adequate protection coverage for the device body, thereby lowering manufacturing costs.
3Device complexity
If the operation section and display section are disposed on a surface perpendicular to the ground, then the device structure is simplified, but operability and visibility are impaired for users operating while standing
Solution Approach 1:
The operation section and display section are repositioned from a vertical orientation (perpendicular to ground) to an inclined orientation. This dimensional change in the arrangement of components improves visibility and operability for standing users while maintaining structural simplicity.
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
Enhances the device's ability to withstand impacts and reduce manufacturing costs while ensuring compatibility with multiple types of portable acoustic reproducing devices, protecting both the device and the reproducing devices from external damage.
Implementation Method 1
each connection portion connecting the guards of the frame guard is angulated, so that if impact is applied to the connection portion, the applied impact cannot be reliably dispersed
Implementation Method 2
a mounting system with cushioning to absorb impacts
Data Source
AI summary
An electric device includes: a device body; and a frame guard. The device body has a plurality of surfaces for defining a three-dimensional configuration. The frame guard is configured to guard the device body. The frame guard is connected to the device body and disposed outside the device body. The plurality of surfaces is all disposed inside the frame guard.