Sensor Adapter Locking Geometry for Error-Proof Vehicle Assembly
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Solution Overview
Problem
Existing methods fail to reliably prevent the accidental installation of electronic components with axially oriented connectors instead of those with radially oriented connectors during assembly, leading to functional issues that are often detected only after final vehicle inspection or at the customer site, requiring high effort for rectification.
Innovation Solution
A locking device is integrated into the adapter element, designed to engage with components having a radially oriented connector, while obstructing components with axially oriented connectors, ensuring correct assembly by colliding with them during erroneous attempts, thus preventing incorrect installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If components with axially oriented connectors are accidentally installed instead of those with radially oriented connectors, then the assembly appears correct initially, but functional issues are detected only after final vehicle inspection or at the customer site, requiring high effort for rectification
Solution Approach 1:
The locking device is pre-positioned on the adapter element to proactively prevent incorrect assembly before it can be completed. The locking device engages with the groove on correctly oriented components, while blocking the assembly path of incorrectly oriented components, thereby preventing functional issues before they occur.
Solution Approach 2:
The locking device acts as an intermediary mechanical element between the adapter element and the electronic component. It mediates the assembly process by selectively allowing passage of correctly oriented components while blocking incorrectly oriented ones, providing a physical verification mechanism.
2Reliability
If a locking device is added to the adapter element to prevent incorrect assembly, then assembly errors are prevented, but the device complexity increases
Solution Approach 1:
The locking device is implemented as a localized feature on the adapter element rather than a comprehensive complex mechanism. It is positioned specifically at the critical interface where connector orientation matters, providing targeted prevention without adding unnecessary complexity elsewhere in the assembly.
Solution Approach 2:
The locking device utilizes asymmetric geometry to differentiate between correct and incorrect component orientations. The groove and locking device are positioned asymmetrically relative to the component axis, creating a mechanical key-lock relationship that naturally accepts only radially oriented connectors while blocking axially oriented ones.
Data Source
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AI summary
The invention relates to a method for the error-free assembly of an electronic component (2), in particular a sensor, on a preferably polymeric external attachment (1) of a motor vehicle, wherein the electronic component (2) is provided with a connector (20) for electrical contacting the component (2), the external attachment (1) being oriented at least substantially radially to the component axis (x), the external attachment (1) being equipped with an adapter element (3) for receiving the electronic component (2), and the component (2) being brought into contact with the adapter element (3) and thereby mounted on the external attachment (1). According to the invention, a locking device (4) on the adapter element (3) and/or on the external attachment (1) prevents the accidental assembly of an analogous component (2') with a connector (20') oriented at least substantially parallel to the component axis (x').