U-Shaped Frame Members for Impact Absorbing Power Feeding Apparatus
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Solution Overview
Problem
Existing external power feeding apparatuses for vehicles face challenges in balancing impact resistance and usability, as they often require increased rigidity to suppress deformation during collisions, leading to increased weight and reduced usability.
Innovation Solution
A portable and mountable external power feeding apparatus with a pair of frameworks forming a rectangular frame shape, connected by U-shaped members that can deform under impact loads, allowing the apparatus to absorb and distribute forces without intruding into the cabin, thus maintaining usability and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the rigidity of the protective frame structure is increased to suppress deformation by impact load, then the frame can better resist collision forces, but the weight of the protective frame structure increases
Solution Approach 1:
The patent employs a thin-walled tubular structure for the frame members that achieves adequate strength through optimized geometry and material distribution rather than increasing wall thickness. The tubular shape provides high strength-to-weight ratio while maintaining flexibility to absorb impact energy through controlled deformation.
Solution Approach 2:
The patent changes the structural parameters by introducing specific geometric features (tubular cross-section, optimized dimensions) to the frame members. This allows the frame to achieve necessary strength characteristics without increasing overall weight, as the parameter optimization enables efficient load distribution.
2Object-affected harmful factors
If the rigidity of the protective frame structure is increased to suppress intrusion to the cabin side, then the frame can better protect the cabin, but the usability and portability of the external power feeding apparatus deteriorates
Solution Approach 1:
The thin-walled tubular frame structure provides cabin protection through optimized geometric configuration rather than excessive rigidity. The structure can deform controllably during impact to absorb energy while preventing cabin intrusion, and this flexibility maintains the apparatus's portability and ease of handling.
Solution Approach 2:
The frame structure is designed to dynamically respond to impact loads rather than being overly rigid. The tubular members can undergo controlled deformation during collision events, absorbing impact energy while maintaining structural integrity and preventing cabin intrusion, thus preserving usability under normal conditions.
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 apparatus effectively suppresses intrusion into the cabin during impacts while maintaining portability and usability, simplifying the structure and reducing weight, thereby enhancing its application and ease of use.
Implementation Method 1
U-shaped connecting members that can deform under impact loads, allowing the apparatus to absorb and distribute forces
Data Source
AI summary
An external power feeding apparatus is portable and mountable in a vehicle, incorporating a power supply unit, and capable of supplying power to outside. A pair of frameworks is arranged on both sides of the power supply unit to face each other at a predetermined interval and formed into a substantially rectangular frame shape. A first connecting member connects first sides of the pair of frameworks and is formed into a substantial U shape. A second connecting member connects second sides of the pair of frameworks, which are provided to intersect one end sides of the first sides and is formed into a substantial U shape. A third connecting member connects third sides of the pair of frameworks, which are provided to intersect other end sides of the first sides and is formed into a substantial U shape.