Tire Inner Liner Bonding for Embedded Electronic Component Adhesion
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Solution Overview
Problem
Conventional tires equipped with electronic components like RFID tags face issues with the component detaching from the inner liner during deformation, due to insufficient consideration of adhesion during manufacturing.
Innovation Solution
A tire design featuring an electronic component unit with a resin film covering the component, joined to the inner liner using a vulcanizing adhesive with a thickness of no more than 30 µm, ensuring the adhesive's modulus is between that of the inner liner and the resin film, thereby maintaining flexibility and adhesion during tire deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional adhesive is used to join the electronic component unit to the inner liner, then the component can be attached, but the component detaches during tire deformation
Solution Approach 1:
The patent applies parameter changes by precisely controlling the thickness of the vulcanizing adhesive layer (no more than 30 μm) and matching its modulus between that of the inner liner and the resin film. This parameter optimization ensures the adhesive layer has appropriate flexibility and adhesion strength to prevent detachment during tire deformation while maintaining reliable bonding of the electronic component unit.
2Strength
If the adhesive layer is made thicker to improve adhesion, then bonding strength increases, but flexibility during deformation decreases
Solution Approach 1:
The patent resolves this contradiction through parameter changes by setting the adhesive layer thickness to no more than 30 μm and its modulus to be between that of the inner liner and the resin film. This optimized parameter range provides sufficient adhesion strength while maintaining the flexibility needed to accommodate tire deformation without causing the electronic component unit to detach.
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
This configuration effectively prevents the electronic component unit from detaching from the inner liner even when the tire deforms, enhancing durability and communication performance by maintaining adhesion and reducing stress on the component.
Implementation Method 1
a vulcanizing adhesive which joins the inner liner and the electronic component unit
Data Source
AI summary
To provide a tire which can suppress the occurrence of flaws such as an electronic component unit detaching from an inner liner, even if the tire deforms during use of the tire. A tire (1) includes an inner liner (29), an electronic component unit (50) pasted on a tire inner cavity side (29C) of the inner liner (29), and a vulcanizing adhesive (60) which joins the inner liner (29) and the electronic component unit (50), in which the electronic component unit (50) has an electronic component (40) and a resin film (45) which covers at least part of the electronic component (40), and the vulcanizing adhesive (60) has a thickness of no more than 30 µm.