Car Holder Full Opening Reflects Sound Waves
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Solution Overview
Problem
Conventional car holders obstruct the sound output of mobile devices' loudspeakers, leading to poor sound quality for drivers, and existing solutions with sound transmission holes do not effectively direct sound towards the driver.
Innovation Solution
A car holder design featuring a supporting base with a full opening indented leaning surface that reflects sound waves away from the leaning surface, ensuring clear sound transmission to the driver by positioning the loudspeaker's sound-output surface within the opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the mobile apparatus is fixed on the car holder with the display screen facing the driver, then the mobile apparatus is securely positioned, but the loudspeaker at the back portion is covered by the car holder, resulting in poor sound quality
Solution Approach 1:
The patent introduces an intermediary structure (the car holder body) that serves as a sound reflection surface. This intermediary element redirects the sound waves from the loudspeaker toward the driver, resolving the conflict between secure positioning and sound quality by mediating the sound transmission path.
2Object-affected harmful factors
If a sound transmission through hole is created in the leaning surface to allow sound to pass through, then the loudspeaker sound can be transmitted, but the sound is transmitted away from the driver, resulting in poor and unclear sound quality
Solution Approach 1:
Instead of creating a through hole that allows sound to pass through directly (the conventional approach), the patent inverts the approach by using the solid leaning surface as a reflection surface. The sound is reflected back toward the driver rather than being transmitted through a hole away from the driver, thus improving sound clarity.
3Object-affected harmful factors
If the full opening is designed to reflect sound waves away from the leaning surface, then sound clarity is improved, but the structural design becomes more complex
Solution Approach 1:
The patent segments the leaning surface by introducing a full opening that divides the surface into distinct functional zones: a reflection surface portion and a sound transmission portion. This segmentation allows the structure to simultaneously achieve sound reflection for clarity while maintaining structural integrity, resolving the complexity issue through functional division.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances sound clarity for drivers by reflecting sound waves from the loudspeaker through the full opening, directing them towards the driver, thereby improving sound quality during vehicle use.
Implementation Method 1
the sound-output surface of the loudspeaker communicates with the full opening. Now, sound wave outputted by the sound-output surface, after being reflected by the full opening, is transmitted from the full opening in a direction far away from the leaning surface
Data Source
AI summary
A car holder adopted to be assembled with a mobile apparatus is provided. The mobile apparatus has a loudspeaker located at a back portion thereof, and the loudspeaker has a sound-output surface. The car holder includes a fixing module and a supporting base. The fixing module is adopted to be assembled within a car, and the supporting base is connected to the fixing module. The supporting base has a leaning surface and a full opening indented therein. When the mobile apparatus is assembled to the supporting base, the back portion leans against the leaning surface, and a portion of the full opening is covered by the mobile apparatus. The sound-output surface of the loudspeaker communicates with the full opening, and sound wave outputted by the sound-output surface, after being reflected by the full opening, is transmitted from the full opening in a direction far away from the leaning surface.