Speaker Structure With Partition Plate For Bass Reproduction
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Solution Overview
Problem
Existing small-sized stereophonic speaker designs face challenges in reproducing low frequency components while maintaining a compact form factor, as they require a wider acoustic space to enhance low frequency components, limiting their design flexibility.
Innovation Solution
Incorporating a partition plate with a communication hole that separates middle and high frequency components, allowing low frequency components to propagate between two enclosures, effectively creating a larger acoustic space without increasing the speaker's width, and optimizing the port design for enhanced low frequency reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an acoustic space portion is formed between right and left enclosures to enhance low frequency components, then low frequency reproduction is improved, but the width of the speaker apparatus increases
Solution Approach 1:
The invention repositions the acoustic space from a horizontal arrangement (between enclosures, increasing width) to a vertical arrangement (above enclosures, increasing height). The support board is positioned above both the right and left enclosures, creating a vertical acoustic path that enhances bass reproduction without expanding the speaker's width. This dimensional transformation resolves the contradiction by maintaining compact width while achieving deep bass through vertical space utilization.
2Reliability
If the width of the speaker apparatus is increased to accommodate an acoustic space portion, then low frequency components are enhanced, but the compact form factor is lost
Solution Approach 1:
The invention transitions from horizontal expansion to vertical expansion by positioning the acoustic space above the enclosures rather than between them. This allows the speaker to maintain a compact width and overall footprint while achieving enhanced bass reproduction through the vertical acoustic path created by the support board structure.
3Reliability
If a partition plate with communication hole is used to separate frequency components, then high frequency separation is improved, but device complexity increases
Solution Approach 1:
The partition plate is divided into frequency-specific zones: an upper communication hole portion for low frequency components and a lower blocked portion for high frequency components. This segmentation allows different frequency ranges to be directed differently - low frequencies pass through the communication hole to the acoustic space, while high frequencies are blocked and directed to the front. This simple segmented structure achieves effective frequency separation without adding complex active components or control systems.
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
This configuration enables sufficient low frequency reproduction while separating high frequency components, providing an improved separation feeling between right and left sounds and increasing the voluminousness of bass without expanding the speaker's width, thus addressing the design constraints of small-sized speakers.
Implementation Method 1
a communication hole 17 is formed in the partition plate 13. The communication hole 17 allows a first enclosure 15 and a second enclosure 16 to communicate with each other
Implementation Method 2
The partition plate 13 separates middle and high frequency components out of sounds emitted from rear faces of the speaker 11 and the speaker 12
Implementation Method 3
a port 20 is provided, the port 20 being communicatively connected to the acoustic space 14 through a second opening portion 22 disposed in the second enclosure 16
Data Source
Figure 1
Figure 2A~2C
Figure 3A~3C
AI summary
A speaker structure (1) includes a first enclosure (15), a second enclosure (16), a partition plate (13) and a bass reflex port (20). The partition plate (13) has a communication hole (17) that is provided between the first enclosure (15) and the second enclosure (16) and allows the first enclosure (15) and the second enclosure (16) to communicate with each other. The bass reflex port (20) is disposed at least on either the first enclosure (15) or the second enclosure (16).