Tire UID Tag Vulcanization Bonding Layer Design
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Solution Overview
Problem
Tire UID tags face challenges in withstanding the vulcanization process and aging tests, necessitating a design that securely integrates with tires and resists high temperatures and pressures.
Innovation Solution
The UID tag comprises a tag unit with a pliable protective layer and a vulcanizable bonding layer, along with signal amplification plates and a positioning adhesive layer, to securely attach to the tire during vulcanization and endure aging tests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UID tag is implanted into the tire during manufacturing, then product traceability and safety features are enhanced, but the tag must withstand harsh vulcanization conditions which complicates the design
Solution Approach 1:
The UID tag is divided into multiple functional layers: a flexible substrate layer containing the antenna and IC chip, a protective layer for environmental resistance, and a vulcanizable bonding layer for secure attachment. This segmentation allows each layer to be optimized independently for its specific function while collectively solving the contradiction between reliability and complexity.
Solution Approach 2:
The tag employs composite material construction with a flexible polymer substrate, metallic antenna elements, semiconductor IC chip, protective coating, and vulcanizable rubber bonding layer. This composite structure enables the tag to simultaneously achieve flexibility for tire integration, electrical functionality for identification, and thermal/chemical resistance for vulcanization survival.
2Adaptability or versatility
If the UID tag uses a flexible substrate to conform to tire curvature, then the tag can be integrated into the tire, but the substrate must withstand high temperatures and pressures during vulcanization
Solution Approach 1:
The substrate material parameters are specifically selected to withstand vulcanization conditions: high glass transition temperature, high decomposition temperature, and appropriate thermal expansion coefficient matching the tire rubber. This allows the flexible substrate to maintain its conformability while surviving the high-temperature vulcanization process.
Solution Approach 2:
A vulcanizable bonding layer acts as an intermediary between the flexible substrate and the tire rubber. This bonding layer is designed to cure during vulcanization, creating strong chemical bonds that secure the temperature-sensitive electronic components while the substrate provides flexibility and conformability to the tire surface.
3Measurement precision
If the UID tag includes signal amplification plates to improve signal strength, then reading accuracy is enhanced, but the tag structure becomes more complex
Solution Approach 1:
The metallic antenna elements serve dual functions: as the primary electromagnetic radiation elements for RFID communication and as signal amplification structures through their geometric design. The antenna shape, size, and configuration are optimized to provide both adequate signal transmission and enhanced backscatter capability, eliminating the need for separate amplification components.
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 solution ensures the UID tag remains securely attached to the tire throughout the manufacturing process and withstands aging, enhancing product traceability and safety features.
Implementation Method 1
The vulcanizable bonding layer is provided on one or each of the two opposite sides of the pliable protective layer to bond the UID tag tightly to the tire during a vulcanization process
Data Source
AI summary
The present invention provides an unique ID electronic (UID) tag for a tire, which is suitable to be mounted on a surface of tire or embedded in a tire, comprising: a tag unit; a pliable protective layer; and a vulcanizable bonding layer. The pliable protective layer provided on two opposite sides of the tag unit. The vulcanizable bonding layer provided on one or each of the two opposite sides of the pliable protective layer to bond the UID tag tightly to the tire during a vulcanization process. Further, the tag unit comprises a circuit substrate provided with an antenna circuit, and an integrated circuit (IC) chip electrically connected to the antenna circuit.