Speaker Module Layout for Larger Woofer in Slim Devices
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Solution Overview
Problem
The miniaturization trend of electronic devices poses a challenge for accommodating large-sized woofers required for better low-frequency performance, as traditional side-by-side placement of woofers and tweeters in the width direction limits space, making it difficult to integrate both without increasing the device's width.
Innovation Solution
The speakers are arranged side by side in the length direction of the device, with the woofer positioned away from the sound outlet, allowing for a larger woofer to be accommodated, and a baffle structure separates the sound outlet channel into two channels to improve airflow and sound propagation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the woofer and tweeter are disposed side by side in the width direction at locations equidistant from the sound outlet, then the sound quality is improved, but the device width increases
Solution Approach 1:
The patent transitions from a width-directional speaker arrangement to a length-directional arrangement. The woofer and tweeter are positioned at different distances from the sound outlet along the length direction, with the woofer closer to the sound outlet. This dimensional change allows both speakers to be accommodated without increasing device width, resolving the contradiction between sound quality and device compactness.
2Reliability
If a large-sized woofer is used to improve bass performance, then the low-frequency performance is improved, but the device width increases
Solution Approach 1:
The patent positions the woofer closer to the sound outlet along the length direction, allowing a larger woofer diameter to be accommodated within the device's width constraints. By utilizing the length direction for speaker placement rather than the width direction, the design achieves improved bass performance without increasing overall device width.
3Ease of operation
If the speakers are arranged in the width direction, then the sound outlet accessibility is improved, but the accommodating space for large speakers is reduced
Solution Approach 1:
The patent rearranges speakers along the length direction with the woofer positioned closer to the sound outlet. This maintains good sound outlet accessibility while creating sufficient accommodating space for a larger woofer in the length-directional layout, thereby increasing speaker accommodating volume without compromising accessibility.
Data Source
AI summary
This application discloses a speaker module and an electronic device, and belongs to the field of electronic device technologies. The speaker module includes a housing body, a first speaker, and a second speaker. The housing body has a sound outlet and a sound outlet channel, and the sound outlet channel is in communication with the sound outlet. The first speaker and the second speaker are spaced from each other in the sound outlet channel in a first direction, the second speaker is located on a side that is of the first speaker and that is away from the sound outlet. The two speakers are disposed side by side from far to near relative to the sound outlet. The two speakers are spaced from each other in a length direction of the electronic device, thereby implementing mounting of a speaker with a large size.