Surface Sound-Emitting Apparatus Segmentation for Miniaturization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional screen sound-emitting apparatuses face challenges in miniaturization due to increased power and cost requirements as the radiation area increases, leading to larger exciters and bulkier electronic devices.
Innovation Solution
A surface sound-emitting apparatus comprising a sheet-like connection element with a vibrating part and an exciter, where the connection element provides elastic recovery force and the exciter provides driving force, allowing for perpendicular vibration and reduced radiation area, thus minimizing the required driving force and power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the radiation area is increased to improve sound emission efficiency, then the sound radiation performance is improved, but the vibration mass increases requiring greater driving force which increases exciter power and device volume
Solution Approach 1:
The patent segments the surface into multiple independent vibration units, each with its own exciter. Instead of vibrating the entire surface as one large mass, each small unit vibrates independently. This segmentation allows the radiation area to be effectively increased through multiple units while keeping the vibration mass of each unit small, thus reducing the driving force and power requirements for each exciter.
Solution Approach 2:
The patent transitions from traditional point-source or small-area sound emission to a two-dimensional surface vibration approach. By utilizing the surface area of the display screen or panel as the vibration region, the sound radiation efficiency is dramatically improved without requiring proportionally larger exciters, as the surface itself acts as the vibration source.
2Productivity
If the radiation area is increased to improve sound emission, then the sound output is improved, but the exciter volume increases which is not conducive to device miniaturization
Solution Approach 1:
The patent divides the large surface area into multiple small vibration units, each equipped with a compact exciter. This segmentation allows the use of small-volume exciters while achieving large effective radiation area through the collective action of multiple units, thus supporting device miniaturization.
Solution Approach 2:
The patent makes the display surface or panel serve multiple functions: both visual display and sound emission. By integrating the vibration function into the existing surface structure, additional exciters or mechanical components are minimized, enabling device miniaturization while maintaining sound radiation efficiency.
3Productivity
If a more powerful exciter is used to drive larger radiation area, then the sound emission capability is improved, but the cost of the sound-emitting apparatus increases
Solution Approach 1:
The patent uses multiple low-power exciters instead of one high-power exciter. Each exciter drives a small vibration unit with limited radiation area, but the collective output of multiple units achieves the desired sound emission capability. This approach reduces the cost of individual exciters and overall system manufacturing.
Solution Approach 2:
The patent replicates the exciter-vibration unit structure across multiple locations on the surface. Instead of using one expensive high-power exciter, multiple copies of simpler, lower-cost exciter units are deployed, achieving the same overall sound emission capability at reduced manufacturing cost.
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 reduces the radiation area and driving force needed, enabling smaller, more efficient sound emission with improved electro-acoustic conversion efficiency and vibration sensitivity, facilitating thinner and lighter electronic device designs.
Implementation Method 1
the connection element is configured to provide an elastic recovery force
Implementation Method 2
The present invention relates to the technical field of electro-acoustic conversion
Data Source
AI summary
Disclosed are a surface sound-emitting apparatus and an electronic device. The surface sound-emitting apparatus comprises an exciter, a vibrating part and a connection element, wherein the connection element is of a sheet-like structure, the vibrating part is disposed on the connection element, the exciter is disposed on the vibrating part, an edge of the connection element is configured to connect to the remaining portion of a surface of an electronic device, the connection element and the remaining portion of the surface together constitute the surface, the connection element is configured to provide an elastic recovery force, and the exciter is configured to provide a driving force.