Retractable Door Handle Microphone for Weather-Protected Sound Detection
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Solution Overview
Problem
Microphones installed on vehicle exteriors need to withstand environmental conditions such as wind, rain, snow, and dust while capturing desired sounds without being visually obtrusive and maintaining the vehicle's aesthetic appearance.
Innovation Solution
A retractable microphone arrangement integrated with a retractable door handle, where the microphone is housed within the handle when not in use and exposed only when needed, protected by a grille and acoustic membrane to shield from environmental elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the microphone is positioned on the vehicle exterior to capture external sounds, then the microphone can detect sound outside the automobile, but the microphone is exposed to harsh environmental conditions such as wind, rain, snow, and dust
Solution Approach 1:
The microphone housing is nested within the retractable door handle assembly. When the door handle is retracted into the vehicle body, the microphone housing is also retracted and protected within the body structure. When the door handle is extended, the microphone housing extends outward to capture external sounds. This nesting arrangement allows the microphone to be both protected from environmental elements and positioned for effective sound detection.
Solution Approach 2:
The microphone housing is made dynamic by coupling it to the retractable door handle mechanism. The housing transitions between retracted and extended positions based on the door handle state. This dynamic positioning allows the microphone to adapt between protection mode (retracted) and detection mode (extended), resolving the contradiction between environmental protection and sound detection capability.
2Reliability
If the microphone is positioned on the vehicle exterior to support vehicle applications, then the microphone can detect external sound, but it may mar the exterior styling of the vehicle
Solution Approach 1:
The microphone housing is merged with the retractable door handle assembly, combining two functional elements into one integrated structure. The microphone housing utilizes the existing door handle mechanism and mounting structure, rather than being a separate external component. This merging allows the microphone to be hidden within the door handle structure, maintaining vehicle aesthetics while enabling external sound detection.
3Shape
If the retractable door handle is designed to be fully retractable for aesthetic purposes, then the exterior styling is maintained, but there is no space to accommodate a microphone housing
Solution Approach 1:
The retractable door handle assembly is designed with multi-functionality, serving both as a door operation mechanism and as a housing structure for the microphone. The existing cavity and structural elements of the door handle are utilized to accommodate the microphone housing, eliminating the need for additional space or compromising the retractable design. This universal use of the door handle structure resolves the space constraint while maintaining aesthetics.
Data Source
AI summary
A microphone arrangement comprises a retractable door handle that, when in a closed position, is retracted in a body work of a vehicle, and, when in an in-use position, protrudes from the body work of the vehicle.