Multi-Magnetic Circuit Speaker Suspension for Vibration Damping

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Solution Overview

Problem

Existing multi-magnetic circuits speakers generate strong vibrations during sound production, affecting user experience and product lifespan.

Innovation Solution

A multi-magnetic circuits speaker design featuring a frame with an accommodating space, multiple magnetic circuit systems, a support ring fixed to the frame, and a damping member clamped between the support ring and the yoke, which suspends the magnetic circuit systems to counteract vibrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If multiple magnetic circuit systems are used to drive the vibration system, then the sound output and power are improved, but the vibration stability and installation stability deteriorate due to strong vibrations generated during sound production

Engineering Contradiction:
Improvesound output powerVSAvoidvibration stability
Core Design Contradiction:
PowerVSStability of the object's composition

Solution Approach 1:

The patent divides the magnetic circuit system into multiple independent units (first magnetic circuit system and second magnetic circuit system), each with its own support ring and damping member. This segmentation allows each component to be independently optimized for stability while collectively providing high power output, resolving the contradiction between power and vibration stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces support rings and damping members as intermediary components between the magnetic circuit systems and the frame. These intermediaries absorb and dissipate vibrations, stabilizing the installation while allowing the magnetic circuit systems to operate at high power. The damping member specifically acts as a mediator to convert vibrational energy into heat, reducing unwanted vibrations.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Power

If multiple magnetic circuit systems are installed in the accommodating space, then the sound output is improved, but the installation stability deteriorates due to strong vibrations affecting the frame

Engineering Contradiction:
Improvesound output powerVSAvoidinstallation stability
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent segments the installation structure into multiple independent support rings, each securing a separate magnetic circuit system to the frame. This segmentation isolates the vibration effects to individual support points, preventing vibration propagation throughout the entire frame and maintaining installation stability while supporting high power output.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support rings and damping members serve as intermediary structures that decouple the magnetic circuit systems from the frame. The damping member specifically acts as a vibration isolating intermediary, absorbing shock and vibration energies before they can affect the frame's structural integrity, thus maintaining reliability during high-power operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If the magnetic circuit system is directly fixed to the frame, then the installation is simple, but the vibration-damping effect is insufficient

Engineering Contradiction:
Improveinstallation simplicityVSAvoidvibration effects
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent introduces support rings and damping members as intermediary components between the magnetic circuit system and the frame. The damping member specifically acts as a vibration-absorbing intermediary, converting harmful vibrational energy into heat through material damping. This intermediary structure maintains installation simplicity while effectively reducing vibration effects on the frame.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs composite material structures combining rigid support rings (metal or plastic) with flexible damping members (silicone or rubber). This composite approach provides both structural support for easy installation and vibration-damping properties, simultaneously achieving ease of manufacture and effective vibration reduction through the synergistic combination of different material properties.

Inventive Principle:
Principle #40Composite materials

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

Improves installation stability and achieves a vibration-damping effect, enhancing the overall performance and durability of the speaker.

Implementation Method 1

a damping member clamped between the support ring and the side wall

Methodology Applied
Scientific EffectVibration damping: Damping

Implementation Method 2

the damping member is made of silicone or rubber

Methodology Applied
Scientific EffectViscoelastic damping: Viscoelasticity

Implementation Method 3

at least two magnetic circuit systems configured to drive the vibration system to vibrate and generate sound

Methodology Applied
Scientific EffectElectromagnetic force: Lorentz Force

Implementation Method 4

The support ring and the damping member suspend the magnetic circuit system in the accommodating space

Methodology Applied
Scientific EffectMechanical suspension: Suspension

Data Source

PatentUS20250373986A1Multi-magnetic Circuits Speaker
Publication Date: 2025.12.04 AAC MICROTECH (CHANGZHOU) CO LTD
  • US20250373986A1 patent drawing
  • US20250373986A1 patent drawing
  • US20250373986A1 patent drawing

AI summary

The present disclosure provides a speaker which includes a frame, a vibration system having a diaphragm and a voice coil, a magnetic circuit system including a lower plate, a main magnetic assembly, and an auxiliary magnetic assembly. The main magnetic assembly includes a first main magnet, a main pole plate, and a second main magnet. The auxiliary magnetic assembly includes a first auxiliary magnet, an auxiliary pole plate, and a second auxiliary magnet. The magnetic circuit system further includes an upper plate. The speaker further includes a fixing ring fixed to the upper plate, including a first connecting part fixed to the upper plate, and a second connecting part extending from the first connecting part toward the lower plate for connecting to an inner periphery of the diaphragm. The disclosure optimizes the magnetic circuit system and improves drop resistance. A speaker box is also provided.