Pressure Relief Valve Installation Indication for Vehicle Sealing
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Solution Overview
Problem
Incorrect installation of return air blocking devices in vehicles leads to insufficient sealing, causing dust and water leakage, which can damage the vehicle interior.
Innovation Solution
A return air blocking device equipped with an installation indicator, such as a lever and fiduciary marker, that ensures proper insertion and sealing by using a reader to verify correct assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a return air blocking device is installed without an installation indicator, then the device structure remains simple, but incorrect installation occurs leading to insufficient sealing and dust/water leakage
Solution Approach 1:
The installation indicator (barcode or RFID tag) is pre-installed on the return air blocking device before the actual installation process. This preliminary placement of the indicator enables verification of proper installation depth and orientation, ensuring sealing reliability before the device is fully integrated into the vehicle body.
Solution Approach 2:
An installation indicator serves as an intermediary element between the return air blocking device and the verification system. The indicator (barcode or RFID tag) mediates the transmission of installation status information, allowing the sealing reliability to be verified without directly measuring the physical seal compression.
2Ease of operation
If the return air blocking device is not fully inserted into the aperture, then installation is easier and faster, but the seal does not compress sufficiently causing dust and water leakage
Solution Approach 1:
The installation indicator provides immediate feedback on whether the return air blocking device has been inserted to the correct depth. The barcode or RFID tag is positioned such that its detectability or readability confirms proper insertion, giving installers real-time feedback to prevent insufficient sealing that would allow dust and water leakage.
Solution Approach 2:
The installation indicator may utilize visual color changes or optical properties (in the case of barcodes) to indicate proper installation depth. When the device is correctly inserted, the indicator becomes visible or readable in a specific orientation, providing a clear visual signal that sealing requirements have been met.
3Manufacturing precision
If an installation indicator is added to the return air blocking device, then proper installation can be verified, but the device complexity increases
Solution Approach 1:
The installation indicator uses inexpensive, simple components such as barcodes printed on the device surface or low-cost RFID tags. These indicators are easily applied during manufacturing and can be read once during installation verification, providing high installation precision at minimal cost and complexity addition.
Solution Approach 2:
Instead of adding complex mechanical verification mechanisms, the patent uses a simplified copy or representation (barcode/RFID tag) that encodes installation status information. This digital or optical copy allows verification of installation precision without requiring complex physical measurement systems.
Data Source
AI summary
A pressure vent valve for ventilation of the interior of a motor vehicle, with a frame with at least one sealing surface and with at least one flexible valve flap mounted on the frame. In an idle position, the valve flap assembly abuts the sealing surface to prevent airflow through the pressure vent valve. When a sufficient pressure occurs, the valve flap assembly assumes an open position lifted from the sealing surface to allow airflow through the pressure vent valve. The pressure vent valve further includes an installation indicator formed in or on the frame to ensure alignment during installation.