Foldable Electronic Device With Stretchable Rear Sound Cavity
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Solution Overview
Problem
Existing electronic devices have limited space for speaker modules, which restricts the improvement of audio playback effects, leading to poor user experience.
Innovation Solution
An electronic device design featuring a first and second main body that are rotatable relative to each other, with a stretchable connecting tube forming a rear sound cavity that expands or contracts based on the device's position, allowing the volume of the sound cavity to change, thereby enhancing sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the speaker module space is increased to improve audio playback effect, then the sound quality is improved, but the device structure becomes more complex and space utilization becomes difficult
Solution Approach 1:
The patent applies the dynamics principle by making the connecting tube stretchable rather than rigid. The connecting tube can dynamically adjust its length based on the relative positions of the first and second main bodies, transforming from a fixed structural element to a flexible one. This allows the rear sound cavity volume to change with device folding states, improving audio playback effect without requiring complex fixed structures for different volume configurations
Solution Approach 2:
The connecting tube serves multiple functions: it structurally connects the first and second main bodies while simultaneously forming part of the rear sound cavity. This multi-functionality eliminates the need for separate components for structural support and acoustic cavity formation, reducing overall device complexity while achieving the desired audio playback improvement
2Manufacturing precision
If a fixed large-volume rear sound cavity is designed, then audio playback effect is improved, but the device occupies more space and reduces adaptability
Solution Approach 1:
The stretchable connecting tube enables the rear sound cavity to dynamically adapt its volume based on device configuration. When the device is folded, the connecting tube stretches to maximize cavity volume for optimal audio playback. When unfolded, it contracts to minimize space occupation. This dynamic adaptation resolves the contradiction between maintaining large cavity volume for audio quality and reducing space occupation for device portability
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 improves audio playback effects by dynamically adjusting the sound cavity volume, enhancing user experience through improved sound quality.
Implementation Method 1
the connecting tube 4 is stretchable, where in a case that the first main body 1 and the second main body 2 rotate relative to each other to the folded state, the connecting tube 4 is in a stretched state; and in a case that the first main body 1 and the second main body 2 rotate relative to each other to the unfolded state, the connecting tube 4 is in a compressed state
Data Source
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AI summary
This application discloses an electronic device. The electronic device includes a first main body, a second main body, a speaker module, and a connecting tube, where the two main bodies are rotatable relative to each other to a folded state or an unfolded state; the first main body is provided with a first cavity and a speaker module, and the first cavity is in communication with the speaker module; the second main body is provided with a second cavity; and the connecting tube is disposed at a rotational joint between the first main body and the second main body, two ends of the connecting tube are respectively in communication with the first cavity and the second cavity, the first cavity, the connecting tube, and the second cavity together form a rear sound cavity of the speaker module, and the connecting tube is stretchable, where in a case that the two main bodies rotate relative to each other to the folded state, the connecting tube is in a stretched state; and in a case that the two main bodies rotate relative to each other to the unfolded state, the connecting tube is in a compressed state.