Tire Electronic Component Embedding for Shock Protection
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Solution Overview
Problem
Conventional tire designs with embedded electronic components, such as RFID tags, face protection issues during tire distortion or shock, and communication instability due to proximity to metal components.
Innovation Solution
Embedding electronic components between the bead filler and carcass ply, positioned 10 mm to 5 mm +/- 3 mm from the tire-radial direction outside end of the bead filler, and mounting them between the bead filler and the ply folding part or ply body, ensuring they are separated from metal components and protected by a rubber-based protective member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the electronic component is arranged between the stiffener and side rubber, then the tire structure is simplified, but the electronic component is not protected from damage during tire distortion or shock
Solution Approach 1:
The electronic component is nested within multiple protective layers of the tire structure. Specifically, the component is positioned between the bead filler and the carcass ply, with additional protection from the inner liner and other tire layers, creating a nested protective configuration that shields the component from external shocks and distortions.
Solution Approach 2:
The bead filler and carcass ply serve as intermediary protective layers between the electronic component and external harmful factors. These structural elements act as mediators that absorb and distribute mechanical stresses, preventing direct transmission of shock to the embedded component.
2Device complexity
If the RF tag is arranged in the vicinity of a stiffener adjacent to a metal bead core, then the tire structure is compact, but the communication state becomes unstable due to metal interference
Solution Approach 1:
The electronic component is extracted from the proximity of metal components (bead core and stiffener) and repositioned to a location where fiber layers provide electrical isolation. This separation eliminates the harmful electromagnetic interference from metal while maintaining the compact overall tire structure through optimized component placement.
Solution Approach 2:
Fiber layers (carcass ply) serve as intermediary barriers between the electronic component and metal components. These fiber layers provide electrical isolation and electromagnetic shielding, preventing metal interference from affecting the communication stability of the RFID tag while allowing the tire to maintain its structural compactness.
Data Source
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AI summary
A tire is provided which can protect an electronic component even in a case of the tire greatly distorting or shock acting on the tire, and can keep the performance of the electronic component by arranging the electronic component at a position distanced from metal components. A tire (1) includes a pair of beads (11) having a bead filler (22) which extends to an outer side in the tire-radial direction of a bead core (21), and a carcass ply (23) which extends from one bead (11) to another bead (11) and is folded back around the bead core (21), in which an electronic component (40) is embedded in an area range (L1) of 10 mm to an inner side in the tire-radial direction from a tire-radial direction outside end (22A) of the bead filler (22).