Sounding Device Plastic Sealer Injection-Molded Magnetic Yoke
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing sounding devices in mobile terminals face inefficiencies in mounting breathable spacers, leading to low mounting efficiency and limited leakage patency, resulting in poor acoustic performance due to one-way leakage and flexibility issues.
Innovation Solution
A sounding device design featuring a plastic sealer injection-molded on the magnetic yoke with multiple leak holes, replacing the breathable spacer, allowing for smoother leakage and improved acoustic performance by forming an inner sounding cavity that connects with the outside, enhancing the leakage patency in the XYZ space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a breathable spacer is mounted on the magnetic yoke to achieve dust protection and sound pressure balance, then the dust protection function is improved, but the mounting efficiency is low and the leakage patency is limited
Solution Approach 1:
The patent combines the dust protection function and the sound pressure balance function into a single integrated structure. The magnetic yoke itself is designed with dust-proof features while the cavity structure provides both sealing and controlled leakage pathways, eliminating the need for separate breathable spacer components and improving mounting efficiency.
Solution Approach 2:
The magnetic yoke is designed to serve multiple functions simultaneously: it provides magnetic flux conduction, dust protection, and controlled sound pressure balance through its integrated cavity structure. This multi-functional design replaces the traditional separate breathable spacer component, improving both mounting efficiency and overall device performance.
2Reliability
If a breathable spacer is used for sound pressure balance, then the dust protection is improved, but the leakage patency is limited due to one-way leakage and flexibility issues
Solution Approach 1:
The patent implements dynamic leakage pathways through the cavity structure that can adapt to different pressure conditions. The design allows for multi-directional air flow through strategically positioned openings and channels, enabling the system to respond dynamically to pressure changes while maintaining dust protection, thereby improving leakage patency beyond the limitations of static breathable spacers.
3Reliability
If a breathable spacer is injection molded on the frame or mounted on the magnetic yoke, then the dust protection is achieved, but the mounting efficiency is low
Solution Approach 1:
The patent merges the dust protection function directly into the magnetic yoke structure through integrated cavity design. The magnetic yoke is manufactured as a single piece with built-in dust-proof features and sound pressure balance channels, eliminating the need for separate breathable spacer components and their associated mounting processes, thereby significantly improving manufacturing efficiency.
4Productivity
If a plastic sealer is injection molded on the magnetic yoke with leak holes, then the mounting efficiency is improved and cost is reduced, but the structure complexity increases
Solution Approach 1:
The patent extracts the complex breathable spacer component and its mounting process from the system. Instead of adding a separate plastic sealer with leak holes, the design uses the existing magnetic yoke structure with integrated cavity and opening features to achieve the same function, thereby improving mounting efficiency while avoiding increased structural complexity.
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
The solution achieves better acoustic performance and cost savings by eliminating the need for breathable spacers, providing a more efficient and flexible leakage system compared to traditional methods.
Implementation Method 1
a plastic sealer which is injection-molded on the outer periphery of the magnetic yoke
Data Source
AI summary
The present disclosure provides a sounding device, which includes a frame, a vibration system fixed on the frame and a magnetic circuit system for driving the vibration of the vibration system. The magnetic circuit system includes a magnet unit fixed on the frame and a magnetic yoke connected to the magnet unit. The sounding device also includes a plastic sealer to form multiple leak holes. The plastic sealer is opened to replace the existing breathable spacer. The sounding device of the present disclosure has smooth leakage, good acoustic performance and good user experience.