Multifunctional Sounding Device Magnetic Circuit Mounting

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Solution Overview

Problem

Existing multifunctional sounding devices experience poor installation strength of the magnetic circuit system, leading to disconnection under external forces, resulting in instability and improper functioning.

Innovation Solution

The magnetic circuit system is fixedly connected to the housing through an extension part that protrudes outside, and an elastic component supports the second vibration system, ensuring stability by distributing forces symmetrically and allowing for vibration along multiple directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the magnetic circuit system is indirectly connected to the housing, then the installation is simpler, but the installation strength is poor and connection stability deteriorates

Engineering Contradiction:
Improveinstallation simplicityVSAvoidconnection stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The magnetic circuit system is divided into separate components: the magnetic circuit body and the extension part. The extension part acts as a dedicated connection component that protrudes from the housing to provide a stable mounting interface, separating the magnetic field generation function from the mechanical connection function.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The extension part extends in a direction perpendicular to the main vibration direction (along the second direction and/or third direction), creating a three-dimensional connection structure that enhances mechanical stability without interfering with the primary acoustic function along the first direction.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If the magnetic circuit system is fixedly connected through extension part, then connection stability is improved, but device complexity increases

Engineering Contradiction:
Improveconnection stabilityVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The extension part is integrated with the magnetic circuit system as a unified component, combining the magnetic circuit functionality with the mechanical extension for mounting. This merging reduces the need for separate mounting brackets or additional fastening components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The extension part serves multiple functions: it provides mechanical support for fixed connection, extends the mounting interface outside the housing, and maintains proper spacing between the magnetic circuit system and housing. This multi-functionality reduces the need for additional dedicated components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 enhances the stability and performance of the multifunctional sounding device by preventing disconnection during external forces and enabling continuous operation, improving user experience through enhanced vibration and sound feedback.

Implementation Method 1

a magnetic circuit system for driving the first vibration system and the second vibration system to vibrate

Methodology Applied
Scientific EffectElectromagnetic force: Lorentz Force

Implementation Method 2

an elastic component with one end thereof connected to the side wall of the housing and another end connected to the second vibration system for supporting the second vibration system in the containment cavity

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11950046B2Multifunctional sounding device
Publication Date: 2024.04.02 AAC MICROTECH (CHANGZHOU) CO LTD
  • US11950046B2 patent drawing
  • US11950046B2 patent drawing
  • US11950046B2 patent drawing

AI summary

The present invention provides a multifunctional sounding device including a housing, a first vibration system, a second vibration system, a magnetic circuit system, an elastic component and a flexible circuit board. The elastic component includes a deformation part fixed to the second vibration system and an installation part extended from both ends of the deformation part and fixed to the housing. The second vibration system is suspended in the containment cavity through the elastic component. The flexible circuit board is connected with the elastic component, so that the vibration of the flexible circuit board is coupled with the vibration of the elastic component. Therefore, the damping of the elastic component is reduced, the force received by the elastic component during vibration is reduced, and the service life of the elastic component is extended.