Diaphragm Assembly with Intermediate Patch Plate for Loudspeaker Tone Quality
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Miniaturization of loudspeaker modules has led to compromised acoustic performance, resulting in a less-than-ideal user experience due to the need to sacrifice tone quality in smaller electronic devices.
Innovation Solution
A diaphragm assembly comprising a first and second diaphragm body with an intermediate patch plate, where the second diaphragm body partially covers the first, and the intermediate patch plate is connected to both, forming an enclosed structure to enhance mid-high frequency curves and maintain a compact design, allowing for improved tone quality without increasing module size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the loudspeaker module is miniaturized to reduce volume, then the size of the loudspeaker module is reduced, but the acoustic performance and tone quality are compromised
Solution Approach 1:
The diaphragm is divided into a first diaphragm body and a second diaphragm body, which are separately designed and connected through an intermediate patch plate. This segmentation allows each diaphragm body to be optimized for specific frequency ranges, enabling good acoustic performance in a miniaturized loudspeaker module without requiring a large single diaphragm structure
Solution Approach 2:
The second diaphragm body is positioned to cover part of the first diaphragm body, creating a nested configuration. The intermediate patch plate connects these nested diaphragm structures, allowing compact arrangement that improves mid-high frequency response while maintaining small overall size, thus resolving the contradiction between miniaturization and acoustic performance
2Reliability
If additional acoustic resonant cavities are added to improve tone quality, then the acoustic performance is improved, but the module size increases
Solution Approach 1:
The intermediate patch plate serves multiple functions simultaneously: it connects the first and second diaphragm bodies, provides structural support, and acts as an acoustic element that enhances mid-high frequency curves. By merging these functions into a single component, the patent improves tone quality without adding separate resonant cavities or increasing module size
Solution Approach 2:
The intermediate patch plate is designed as a multi-functional element that performs both structural connection and acoustic enhancement functions. This universal component achieves tone quality improvement without requiring additional dedicated acoustic resonant cavities, thereby avoiding increase in module size
Data Source
AI summary
Disclosed in embodiments of the present disclosure are a diaphragm assembly, a loudspeaker module and an electronic device, the diaphragm assembly including a diaphragm body and an intermediate patch plate, wherein the diaphragm body includes a first diaphragm body and a second diaphragm body; the first diaphragm body is provided with a first hole; the intermediate patch plate includes a first intermediate patch plate; the second diaphragm body at least partially cover the first hole; the first intermediate patch plate is respectively connected to the first diaphragm body and the second diaphragm body; the first intermediate patch plate is configured to have an enclosed structure, or the intermediate patch plate includes a second intermediate patch plate connected to the second diaphragm body, such that the mid-high frequency curves of the loudspeaker module are smoother, thereby effectively improving the mid-high frequency tone quality.