Concave Cover Structure for Tire Sensor Detachment Resistance
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Solution Overview
Problem
Tire sensors mounted on inner surfaces face durability issues due to repeated deformation during driving, leading to detachment and potential damage.
Innovation Solution
A tire sensor design featuring a concave portion in the side surface of the cover body, positioned between the mounting surface and a quarter of the maximum sensor height, to absorb stress and prevent detachment from the tire inner surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cover body structure is simplified without a concave portion, then the manufacturing complexity is reduced, but the tire sensor durability deteriorates
Solution Approach 1:
The concave portion represents a minimal yet targeted structural feature that can be integrated into the cover body molding process with relatively simple tooling modifications. Rather than requiring complex multi-component assemblies or post-processing operations, the concave portion can be formed as an integral feature during the injection molding process, maintaining ease of manufacture while adding functional value. The localized nature of the feature keeps the overall manufacturing complexity low.
Solution Approach 2:
The concave portion utilizes curved geometry to absorb deformation stresses more effectively than flat surfaces. The curved surfaces of the concave portion allow for stress distribution and energy absorption through geometric form rather than requiring additional material or complex structures. This curvature-based approach achieves enhanced durability through shape optimization rather than through manufacturing complexity.
Data Source
AI summary
A tire sensor according to the present disclosure is a tire sensor configured to be mountable on a tire inner surface. The tire sensor includes a sensor body including electronic circuitry including a detector configured to be able to detect tire information, and a cover body configured to cover at least a part of a periphery of the sensor body. The cover body includes a mounting surface configured to be mountable on the tire inner surface, and a side surface configured to rise from an outer edge of the mounting surface. In the side surface of the cover body, a concave portion is formed between the mounting surface and a height position of ¼ of a maximum sensor height in a sensor height direction orthogonal to the mounting surface.