Speaker Assembly Integrated with Frame for Vibration Resistance

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing personal media devices face challenges in withstanding physical stress and vibrations, which can damage speaker assemblies and reduce sound quality due to insufficient structural rigidity and acoustic coupling.

Innovation Solution

Integrating the speaker assembly with the media device's frame, which provides greater structural strength, to enhance its ability to withstand physical stresses and vibrations while maintaining a compact form factor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the speaker assembly is mounted on an internal PCB or housing, then the device can achieve a compact form factor, but the speaker assembly becomes susceptible to physical stress and vibrations from drops and external forces

Engineering Contradiction:
Improveform factorVSAvoidsusceptibility to physical stress
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent introduces a shock-absorbing material as an intermediary layer between the speaker assembly and the PCB/housing. This mediator absorbs and dissipates shock forces from drops, preventing direct transmission to the speaker components while maintaining the compact integrated design.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs composite construction by integrating the speaker assembly with a combination of rigid structural elements (PCB or housing) and flexible shock-absorbing materials. This composite approach provides both structural support for compactness and vibration isolation for reliability.

Inventive Principle:
Principle #40Composite materials

2Strength

If the structural rigidity of the acoustic source or surrounding components is increased to mitigate vibrations, then vibration resistance improves, but the device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvestructural rigidityVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent divides the structural support function into separate segments: the rigid PCB or housing provides structural integrity, while dedicated shock-absorbing material layers provide vibration mitigation. This segmentation allows each component to be optimized independently, reducing overall complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent modifies physical parameters by selecting materials with specific properties (rigid materials for structure, viscoelastic materials for shock absorption) and optimizing their thickness and placement. This parameter-based approach achieves vibration resistance without requiring complex structural designs.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9866931B2Integrated speaker assembly for personal media device
Publication Date: 2018.01.09 APPLE INC
  • US9866931B2 patent drawing
  • US9866931B2 patent drawing
  • US9866931B2 patent drawing

AI summary

Systems and methods are provided for media devices including a housing, a frame disposed adjacent to the housing, and an acoustic source that is integrated with the frame for emitting sound from the media device.