Tire Electronic Component Nesting and Shielding
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Solution Overview
Problem
Conventional tires embedding electronic components like RFID tags lack protection, especially during tire distortion or impact, as the RF tag is not shielded by a fiber layer and is exposed to damage.
Innovation Solution
The electronic component is positioned between the carcass ply and the inner liner, with additional protection provided by rubber sheets and fiber layers, ensuring it is shielded from distortion and impact, and strategically placed to avoid metal components that could interfere with communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic component is arranged between the stiffener and side rubber without a fiber layer, then the structure is simple and easy to manufacture, but the electronic component is not protected during tire distortion or impact
Solution Approach 1:
The electronic component is nested within multiple protective layers including the carcass ply, inner liner, and rubber sheet, creating a nested structure where each layer provides additional protection while maintaining overall structural integrity
Solution Approach 2:
The protective structure combines multiple materials with different properties: the fiber-reinforced carcass ply for structural strength, the elastic inner liner for cushioning, and the additional rubber sheet for impact protection, creating a composite protective system
2Reliability
If the electronic component is placed in the tire-widest part vicinity or buttress vicinity, then communication interference from metal components is avoided, but the component is exposed to greater distortion stress
Solution Approach 1:
The inner liner acts as an intermediary layer between the electronic component and the outer tire structure, providing electrical isolation from metal components while mechanically cushioning the component from distortion stresses through its elastic properties
Solution Approach 2:
The protective system combines the fiber-reinforced carcass ply for structural support with the elastic inner liner for stress distribution, creating a composite structure that simultaneously protects against both communication interference and distortion stress
Data Source
AI summary
A tire includes: a carcass ply, and an inner liner provided to a tire inner cavity side of the carcass ply, in which an electronic component is arranged between the carcass ply and the inner liner. Furthermore, the electronic component may be covered by rubber sheets.