Bussed Electrical Center Housing With Cantilever Shock Beams
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Solution Overview
Problem
Relative movement between components of a bussed electrical center assembly due to vibration can cause damage, and existing polymer foam dampers lose effectiveness over time due to aging and wear.
Innovation Solution
Incorporation of resilient cantilevered shock absorbing beams made of glass-filled polymer material, which are integrally formed with the housing and provide compressive contact with electrical components to absorb and dampen vibratory motion, preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If polymer foam dampers are used to absorb vibrations, then shock absorption is improved, but reliability deteriorates over time due to material aging and compression setting
Solution Approach 1:
The patent changes the material parameters from soft polymer foam to rigid glass-filled polymer beams, fundamentally altering the shock absorption mechanism from compression-based to bending-based. This parameter change eliminates the aging and compression setting issues inherent in foam materials while maintaining vibration damping effectiveness.
Solution Approach 2:
The patent uses glass-filled polymer composite material for the shock absorbing beams. The glass fibers embedded in the polymer matrix provide enhanced structural stability, resistance to degradation, and maintained mechanical properties over time, solving the reliability issue of conventional foam dampers.
2Stability of the object's composition
If rigid support structures are used to hold electrical components, then structural stability is improved, but shock absorption deteriorates causing vibration damage
Solution Approach 1:
The patent applies different structural qualities to different parts of the housing: rigid glass-filled polymer beams provide structural stability for component positioning, while the same beams' flexibility in their cantilever configuration provides shock absorption. This local differentiation of structural properties resolves the contradiction between stability and shock absorption.
Solution Approach 2:
The shock absorbing beams are designed as cantilevered structures that can dynamically deflect and return to position, providing adaptive shock absorption while maintaining component positioning. This dynamic capability allows the structure to respond to vibrations rather than rigidly resisting them.
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 shock absorbing beams effectively prevent damage to electrical components by absorbing and damping vibrations, maintaining assembly integrity over time.
Implementation Method 1
resilient cantilevered shock absorbing beams... provide compressive contact with electrical components to absorb and dampen vibratory motion
Implementation Method 2
absorb and dampen vibratory motion, preventing damage
Data Source
AI summary
A bussed electrical center assembly may include a first housing containing an electrical component. A bussed electrical center assembly may also include a second housing configured to be mechanically attached to the first housing. The second housing defines a resilient cantilevered shock absorbing beam extending from the second housing. The shock absorbing beam is configured to be in compressive contact with the electrical component.