PVC Section Bar Anti-Vibration Mount to Prevent Oxide Corrosion
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Solution Overview
Problem
The existing anti-vibration mounts for air-conditioning equipment deteriorate due to corrosive oxide generation between aluminium section bars and screws, leading to structural degradation.
Innovation Solution
The anti-vibration mount features a section bar made of rigid PVC, optionally reinforced with fiberglass, instead of aluminium, to prevent oxide formation and ensure secure connection with screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an aluminium section bar is used in the anti-vibration mount, then the mount can provide structural support and connection points for screws, but oxide forms between the aluminium and screws over time causing corrosive deterioration
Solution Approach 1:
The patent changes the material parameter of the section bar from aluminium to PVC (polyvinyl chloride). This material substitution eliminates the electrochemical reaction between dissimilar metals that causes oxide formation and galvanic corrosion, while maintaining the structural support function through the rigidity and strength properties of PVC.
Solution Approach 2:
The patent employs PVC as a composite or alternative material to replace aluminium in the section bar. This material choice provides both structural integrity and chemical inertness, preventing the corrosive oxide formation that occurs with aluminium-screw interfaces while preserving the mechanical support capabilities.
2Reliability
If the section bar is made of plastic material, then oxide formation is prevented and corrosion is reduced, but the structural rigidity and load-bearing capacity must be maintained
Solution Approach 1:
The patent modifies the physical and chemical parameters of the section bar by selecting PVC with appropriate density, tensile strength, and rigidity characteristics. This ensures that while eliminating corrosive oxide formation, the material maintains sufficient structural rigidity to support the air conditioner unit and withstand operational loads.
Data Source
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AI summary
The invention is an anti-vibration mount (1) for the external units of air-conditioning equipment, comprising: - a base (9) made of recycled rubber; - a section bar (2) immersed in the base (9) and emerging at the top of the base, suited to house fixing screws (30) intended to fix the external unit of air-conditioning equipment. The section bar (2) is made of a rigid plastic material.