Wheel Support Sensor Shielding With Integrated Labyrinth Structure
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Solution Overview
Problem
Conventional vehicle wheel support devices require a separate deflector to prevent foreign matter from adhering to sensors, increasing the number of components and assembly complexity, which leads to higher costs.
Innovation Solution
A vehicle wheel support device that incorporates a hub bearing, hub carrier, and a sensor, where the hub carrier and a large-diameter protruding portion on the assembly member cooperate to prevent foreign matter from reaching the sensor, eliminating the need for a separate deflector by utilizing a labyrinth effect to inhibit entry and adherence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separate deflector is provided to prevent foreign matter from adhering to the sensor, then the sensor is protected from foreign matter, but the number of components increases
Solution Approach 1:
The patent merges the deflector function with the hub carrier by integrating a protruding portion directly into the hub carrier structure. This eliminates the need for a separate deflector component while maintaining the protective function against foreign matter adhesion to the sensor.
Solution Approach 2:
The hub carrier is given multiple functions: it not only supports the hub bearing but also includes a protruding portion that acts as a deflector to protect the sensor from foreign matter. This multi-functionality reduces the overall component count while maintaining protective capabilities.
2Object-affected harmful factors
If a separate deflector is provided to prevent foreign matter from adhering to the sensor, then the sensor protection is improved, but the assembly work increases
Solution Approach 1:
By integrating the deflector protruding portion directly into the hub carrier, the patent eliminates the separate assembly step of installing a deflector. The sensor protection function is built into the hub carrier structure, simplifying the assembly process while maintaining effective foreign matter prevention.
3Object-affected harmful factors
If a separate deflector is provided to prevent foreign matter from adhering to the sensor, then the sensor protection is improved, but the cost increases
Solution Approach 1:
The patent integrates the deflector function into the hub carrier structure, eliminating the need for a separate deflector component. This reduction in component count directly lowers manufacturing costs while maintaining the protective function against foreign matter adhesion to the sensor.
Solution Approach 2:
The hub carrier performs multiple functions including supporting the hub bearing and providing sensor protection through its integrated protruding portion. This multi-functionality reduces the total number of components required, thereby reducing overall system cost while maintaining effective sensor protection.
Data Source
AI summary
A vehicle wheel support device includes: a hub bearing that rotatably supports a wheel; a hub carrier that supports the hub bearing; a sensor that detects a rotation state of the wheel; and an assembly member that is assembled to the hub bearing, the hub carrier, or both the hub bearing and the hub carrier, wherein the assembly member has a large-diameter protruding portion that cooperates with the hub carrier to prevent entry of foreign matter toward the sensor.