Foldable Navigation Mount That Avoids Speaker Port Obstruction
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Solution Overview
Problem
Existing portable navigation devices (PNDs) have tiny speakers that are often obstructed by mounts, leading to distorted and difficult-to-hear voice instructions due to their placement on the rear face, which is typically used to secure the device to a car windscreen or dashboard.
Innovation Solution
A foldable mount with a connector arm that attaches to the periphery of the speaker port without covering it, allowing for larger speakers to be used and reducing distortion, while also being compact and easily storable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mount is attached to the rear face of the PND, then the device can be securely mounted to a windscreen or dashboard, but the speaker port is obstructed causing distorted and difficult-to-hear voice instructions
Solution Approach 1:
The mount is divided into separate arms: a first arm that attaches to the rear face for secure mounting, and a second arm that extends to support the PND without obstructing the speaker port. This segmentation allows the mounting function to be separated from the support function, eliminating the obstruction problem while maintaining security.
Solution Approach 2:
The mount transitions from a two-dimensional attachment on the rear face to a three-dimensional structure that extends around the speaker port periphery. By utilizing the spatial dimension around the speaker port, the mount achieves secure attachment without blocking the audio output path.
2Volume of moving object
If tiny speakers are used to maintain compact device size, then the PND remains portable and compact, but the voice instructions become difficult to hear and are easily distorted
Solution Approach 1:
The speaker port obstruction problem is extracted and addressed separately from the device size constraint. By designing the mount to specifically avoid covering the speaker port, the solution allows larger speakers to be used within the device without increasing overall device volume, thereby improving audio output while maintaining portability.
3Stability of the object's composition
If the connector arm covers the speaker port for structural support, then the mount provides stable support, but the speaker output is blocked and distorted
Solution Approach 1:
The connector arm is designed with differentiated local qualities: it provides rigid structural support in areas where stability is needed, while incorporating openings or gaps specifically positioned to avoid covering the speaker port. This local differentiation allows the arm to simultaneously achieve structural stability and audio output freedom.
Data Source
AI summary
A portable navigation assembly is disclosed. In at least one embodiment, the portable navigation assembly includes a portable navigation device including a housing, the housing including a speaker port defined by a speaker port periphery; and a mount including a connector arm. In at least one embodiment, the connector arm is adapted to be connected to the portable navigation device around at least a portion of the speaker port periphery without covering at least a portion of the speaker port.