Portable Computer Speaker Module with Sliding Chamber
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Solution Overview
Problem
Conventional notebook computer speakers face challenges in achieving high acoustic quality due to minimized dimensions, leading to noise generation from vibrations and potential diaphragm interference, which existing designs fail to adequately address.
Innovation Solution
A speaker module with a casing featuring a blocking structure, engaging components, and a double-stack mechanism allowing the first and second speaker devices to slide and rotate, enabling them to be hidden inside and exposed for optimal acoustic performance without interference, utilizing a guiding structure and handle portions for easy deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the notebook computer adopts a thin-typed structure with minimized component dimensions, then the portability and compactness are improved, but the speaker chamber dimensions are reduced leading to insufficient exhaust space and degraded acoustic quality
Solution Approach 1:
The speaker chamber is designed to be dynamically adjustable between retracted and extended positions. The worm slide mechanism allows the speaker chamber to extend outward from the notebook body, increasing chamber volume when high acoustic quality is needed, and retract when compactness is prioritized. This dynamic configuration resolves the contradiction between fixed small volume and required large volume.
Solution Approach 2:
Instead of increasing speaker chamber volume within the limited thickness dimension of the notebook, the invention extends the chamber in the lateral dimension by allowing it to slide outward. This dimensional transition from 2D (within body) to 3D (extended outward) provides the necessary chamber volume while maintaining the thin-typed structure when retracted.
2Volume of moving object
If a worm slide sound box is used to extend the speaker chamber outward, then the chamber volume is increased, but the diaphragms of different speaker units may hit each other when vibrating
Solution Approach 1:
The speaker system is segmented into multiple independent speaker units (woofer, mid-range, tweeter), each housed in separate chambers or positioned at different locations within the extended structure. This segmentation ensures that diaphragms of different speaker units do not interfere with each other during vibration, while still achieving the required total chamber volume.
Solution Approach 2:
Each speaker unit is positioned in a specifically designed location within the extended chamber structure, with appropriate spacing and directional orientation. The local spatial arrangement ensures that the vibration paths of different diaphragms are separated, preventing harmful interactions while maximizing the use of available chamber volume.
3Ease of manufacture
If the speaker chamber is extended outward to improve acoustic quality, then the acoustic performance is enhanced, but the structural space tolerance is reduced and internal structures may be interfered with
Solution Approach 1:
The speaker chamber uses a slide mechanism with controlled extension, allowing the system to dynamically adjust between compact configuration (maintaining structural tolerance) and extended configuration (improving acoustic quality). The mechanism includes positioning features and limiting structures that ensure stable operation in both states.
4Ease of manufacture
If multiple speaker units are disposed inside the casing, then the acoustic quality is improved, but the device complexity increases
Solution Approach 1:
Multiple speaker units are integrated into a unified extended chamber structure that slides outward as a single assembly. The housing, chamber, and positioning mechanisms are combined into an integrated module that attaches to the notebook body, reducing the complexity of individual components while achieving multi-speaker acoustic quality.
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 speaker module enhances acoustic quality by allowing diaphragms to vibrate freely, preventing interference and resonance, and enabling separation of speaker units for different acoustic ranges, thus improving structural design limitations and sound output.
Implementation Method 1
a first speaker unit disposed inside the first housing for transforming an electrical signal from a circuit board into a sound signal
Implementation Method 2
the heavy bass speaker is vibrated by acoustic pressure
Implementation Method 3
due to vibration of a diaphragm
Data Source
AI summary
A speaker module includes a casing whereon an opening is formed. The casing includes a blocking structure disposed on a side of the opening. The speaker module further includes a first speaker device, which includes a first housing, a first speaker unit disposed inside the first housing, and an engaging component connected to an end of the first housing for engaging with the blocking structure when the first housing is pulled out of the casing through the opening and for rotating relative to the blocking structure so as to adjust an angle of the first speaker unit. The speaker module further includes a second speaker device connected to the first speaker device and capable of passing through the opening, which includes a second housing connected to the first housing in a slidable manner relative to the first housing, and a second speaker unit disposed inside the second housing.