Electronic Module Housing for Vehicle Wheel Sensor
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Solution Overview
Problem
Current electronic tire parameter monitoring systems face issues with high costs due to expensive all-metal inflation valves and elastomer valves that deform under stress, leading to air leakage and incorrect positioning during tire mounting, which affects the dynamic performance and accuracy of measurements.
Innovation Solution
A housing for the electronic module that collaborates with a 'snap-in' type inflation valve, featuring a valve body made of elastomer material and a rigid tubular core, with connecting means that prevent the electronic module from pivoting during tire mounting, including a widened front face and chamfered or rounded rear face to counter stresses and ensure proper alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an elastomer valve body is used to reduce cost and simplify installation, then manufacturing cost and ease of installation are improved, but the valve body deforms under stress at high speeds causing air leakage and reduced reliability
Solution Approach 1:
The valve body is constructed as a composite structure combining an elastomer material for the main body with a rigid reinforcement element (metal or rigid plastic) positioned within the elastomer. This composite construction allows the valve to maintain the ease of manufacture and sealing properties of elastomer while gaining the stress resistance and dimensional stability of rigid materials, preventing deformation at high speeds and ensuring air tightness.
2Weight of moving object
If a compact housing design is used to reduce mass and improve dynamic performance, then weight is reduced, but the electronic module may pivot during tire mounting affecting measurement accuracy
Solution Approach 1:
The housing includes pre-formed positioning features such as recesses, protrusions, or keyed structures that are integrated into the compact housing design. These features are created during the manufacturing process and automatically engage with corresponding features on the valve body or rim, pre-establishing the correct orientation and position of the electronic module before mounting, thereby preventing pivoting during installation while maintaining the compact, low-mass design.
3Measurement precision
If visual checks and manual repositioning are performed to ensure correct positioning, then positioning accuracy is improved, but productivity and operational efficiency are reduced
Solution Approach 1:
The housing and valve body are designed with self-aligning and self-positioning features such as tapered surfaces, cam mechanisms, or complementary geometric profiles that automatically guide the electronic module into the correct position during mounting. The design inherently prevents incorrect positioning and eliminates the need for manual intervention, visual checks, or repositioning, thereby maintaining high positioning accuracy while maximizing productivity and operational efficiency.
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 solution eliminates the need for costly visual checks and manual repositioning, maintains dynamic performance, and prevents air leakage, ensuring accurate measurements and reduced operational costs.
Implementation Method 1
a valve body made of an elastomer material, provided with a longitudinal axial bore and intended to extend through an orifice made in the rim, said valve body being made up of an elastically deformable trunk
Implementation Method 2
connecting means that prevent the electronic module from pivoting during tire mounting, including a widened front face and chamfered or rounded rear face to counter stresses and ensure proper alignment
Data Source
AI summary
A housing for an electronic module for an electronic unit for measuring operating parameters of the wheel of a vehicle which is able to collaborate with a “snap-in” type inflation valve, including a valve body made of an elastomer material, provided with a longitudinal axial bore and intended to extend through an orifice made in a rim, and a hollow tubular core made of a rigid material. A front face of the electronic module housing being connected to the inflation valve using a connecting device. The electronic module is configured to prevent the electronic module from pivoting about an axis defined by the housing connecting device.