Hearing Aid Coil Adaptation to Irregular Speaker Shapes

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Solution Overview

Problem

Conventional hearing aid coils are not adaptable to irregularly shaped speakers, limiting their size and performance.

Innovation Solution

The design of a coil with specific geometric configurations, including parallel sections, connecting sections forming closed loops, and protrusions or concave parts, allows it to conform to irregular speaker shapes, optimizing its fit and performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a regular coil is used in a regular speaker, then the coil adapts well to the speaker, but the coil cannot adapt to irregularly shaped speakers, limiting its size and performance

Engineering Contradiction:
Improvecoil adaptability to speaker shapeVSAvoidcoil size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The coil is divided into multiple sections (first section, second section, third section, fourth section) that can be independently configured. Each section can be adjusted to match different contours of irregular speaker surfaces, allowing the coil to adapt to various speaker shapes while maximizing its effective area and volume for improved acoustic performance

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs asymmetric coil configuration where the first and second sections have different arrangements compared to the third and fourth sections. This asymmetric design allows the coil to conform to the asymmetric nature of irregular speaker shapes, enabling better adaptation without being constrained by symmetric geometric limitations

Inventive Principle:
Principle #4Asymmetry

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

Enables the coil to adapt to irregular speaker shapes, thereby enhancing sound transmission and performance in hearing aid applications.

Implementation Method 1

A hearing aid coil is mounted in a speaker and helps users wearing hearing aid hear sound by electromagnetic induction with audiphones

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS9258654B2Coil
Publication Date: 2016.02.09 AAC MICROTECH (CHANGZHOU) CO LTD
  • US9258654B2 patent drawing
  • US9258654B2 patent drawing
  • US9258654B2 patent drawing

AI summary

A coil for a transducer includes a pair of first sections, a second section connecting two ends of the first sections, and a third section connecting the other two ends of the first sections for forming a closed loop. The third section includes a pair of first stretch parts each extending from one first section toward the other stretch part, and a first concave part extending from the first stretch parts toward the second section.