Tyre Monitoring Valve Assembly With Interlocking Washer Seal
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Solution Overview
Problem
Existing tyre parameter monitoring systems are complex to assemble and disassemble on wheel rims, requiring multiple components and configurations that complicate the mounting process.
Innovation Solution
A tyre parameter monitoring system featuring a detachable washer with interlocking means and a rubber seal, which provides an airtight connection between the valve stem and electronic module, allowing for simplified assembly and disassembly by mechanical interlocking, and an integral nut on the valve stem for secure attachment to the wheel rim.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional tyre parameter monitoring system is assembled on a wheel rim, then the system provides tyre pressure monitoring functionality, but the assembly process is complex and time-consuming
Solution Approach 1:
The patent combines the valve stem, electronic module, and sealing elements into a single integrated assembly unit. The electronic module is pre-mounted on the valve stem with integrated sealing rings and retaining features, reducing the number of separate components that need to be individually installed on the wheel rim.
Solution Approach 2:
The system is divided into modular components: a valve stem assembly with electronic module, a separate wheel rim with bore, and a retaining mechanism. This segmentation allows the electronic module to be pre-assembled with the valve stem in a controlled environment, then quickly installed as a unit on the wheel rim, improving assembly productivity.
2Ease of operation
If multiple components are used in the monitoring system, then the system functionality is complete, but the assembly and disassembly process becomes more difficult
Solution Approach 1:
The electronic module, sealing elements, and valve stem are merged into a single pre-assembled unit. The electronic module includes integrated sealing rings and retaining features that are pre-positioned during manufacturing, eliminating the need for complex field assembly of multiple separate components.
Solution Approach 2:
The electronic module includes self-aligning and self-sealing features. The sealing rings are pre-installed on the valve stem in correct positions, and the module includes integrated retaining features that automatically engage with the wheel rim bore, reducing the skill level and time required for assembly.
3Device complexity
If the electronic module is directly connected to the valve stem, then the structure is simplified, but an airtight connection is difficult to achieve
Solution Approach 1:
The sealing rings are nested within the electronic module structure, with first and second sealing rings positioned in recesses or grooves on the valve stem. This nested arrangement ensures the sealing elements are protected and pre-positioned correctly, maintaining structural simplicity while ensuring reliable airtight connections.
Solution Approach 2:
The system uses composite sealing structures combining different materials: rubber or elastomeric sealing rings paired with the electronic module housing and valve stem. This combination of materials provides both structural integrity and reliable sealing, achieving airtight connections without excessive structural complexity.
4Length of moving object
If the valve stem is positioned close to the electronic module, then the connection is direct, but the airtight seal becomes more difficult to maintain
Solution Approach 1:
The sealing rings are nested within recesses or grooves on the valve stem, allowing the valve stem to be shorter while maintaining effective sealing positions. The nested sealing structure ensures that seals are positioned at the correct locations relative to the wheel rim bore, maintaining seal integrity despite reduced valve stem length.
Solution Approach 2:
The valve stem and electronic module connection area features localized sealing zones with enhanced sealing properties. Sealing rings are positioned at specific critical locations where air leakage would occur, providing localized high-quality sealing without requiring the entire valve stem to be longer or more complex.
Data Source
Figure 1a
Figure 1b~1c
Figure 2a~2b
AI summary
Tyre parameter monitoring system and method for mounting a tyre parameter monitoring system onto a wheel rim of a vehicle In an embodiment, a tyre parameter monitoring system (2) is provided that comprises an electronic module (4) comprising a fitting (6), a valve stem (8) that is connectable with the electronic module (4) and a washer (10). The washer (10) comprises interlocking means (12) with which the washer (10) is detachably attachable to the fitting (6) of the electronic module (4).