Loudspeaker Module Side Sound Holes High-Frequency Response
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Solution Overview
Problem
The side sound uttering solution in loudspeaker modules affects the high-frequency characteristic due to the introduction of front cavities and pipelines, limiting the improvement of sound quality in electronic products.
Innovation Solution
A loudspeaker module design with sound uttering holes distributed on different sides of the housing, effectively increasing the number of sound uttering holes to reduce pipeline interference and enhance the high-frequency characteristic by partitioning the inner cavity with a vibrating diaphragm into a front and rear sound cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If sound holes are concentrated on one side of the loudspeaker module, then the appearance of the product is improved and the radiation surface of the loudspeaker and screen are on different planes, but the high-frequency characteristic of the product deteriorates due to the introduction of front cavity and pipelines
Solution Approach 1:
The patent divides the sound uttering function into multiple sound holes distributed on different sides of the housing instead of concentrating them on one side. This segmentation eliminates the need for long pipelines and front cavity structures, thereby improving high-frequency characteristics while maintaining the side sound uttering appearance.
Solution Approach 2:
The patent transitions from a single-side sound hole arrangement to a multi-dimensional distribution of sound holes on adjacent sides of the housing. This spatial redistribution reduces the acoustic path length and eliminates pipeline interference, improving high-frequency response while preserving the compact side-uttering design.
2Ease of operation
If pipelines are introduced to connect sound holes on one side, then the side sound uttering solution is achieved, but the high-frequency characteristic deteriorates due to pipeline interference
Solution Approach 1:
The patent extracts and eliminates the pipelines from the sound transmission path by directly opening sound holes on the housing. This removal of intermediate transmission components eliminates pipeline interference and resonance issues, thereby improving high-frequency characteristics while maintaining the side sound uttering function.
Solution Approach 2:
The patent removes the pipeline intermediary between the loudspeaker and the external environment. By opening sound holes directly on the housing, the sound waves transmit without passing through pipelines, eliminating the harmful intermediary that causes high-frequency attenuation and distortion.
3Reliability
If the number of sound uttering holes is increased by distributing them on different sides, then the effective length of sound uttering holes is increased and high-frequency characteristic is improved, but the housing structure becomes more complex
Solution Approach 1:
The patent makes the housing serve multiple functions: it provides structural support, contains the loudspeaker unit, and directly forms multiple sound uttering openings on its surface. This multi-functionality eliminates the need for separate pipeline components, reducing overall device complexity while improving high-frequency characteristics through multiple sound holes.
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 design enhances the high-frequency characteristic of the loudspeaker module by reducing pipeline interference and increasing the effective length of sound uttering holes, thereby improving the sound quality of electronic products.
Implementation Method 1
a vibrating diaphragm of the loudspeaker unit partitions the inner cavity into a front sound cavity and a rear sound cavity
Implementation Method 2
the front sound cavity is in communication with at least two sound uttering holes, and the at least two sound uttering holes are distributed on different sides of the housing
Data Source
AI summary
A loudspeaker module comprises a housing and a loudspeaker unit. The housing is provided with an inner cavity for receiving and fixing the loudspeaker unit. A vibrating diaphragm of the loudspeaker unit partitions the inner cavity into a front sound cavity and a rear sound cavity. The front sound cavity is in communication with at least two sound uttering holes, and the at least two sound uttering holes are distributed on different sides of the housing. The electronic product comprises the loudspeaker module. By means of the technical solution of the present disclosure, the sound uttering holes are provided individually on different sides of a housing of a loudspeaker module. Due to the design of holes opened on at least two sides around the front cavity structure, the loudspeaker module having a side sound uttering structure reduces pipelines introduced during the implementation of the side sound uttering solution, and can achieve the effect of equivalently increasing the length of the sound uttering holes by increasing the number of the sound uttering holes, thereby extending the high-frequency characteristic of the electronic product having the loudspeaker module.