Hearing Aid Carrying Hook Integrally Molded Damper

Solution Overview

Problem

Existing hearing aid damper arrangements in the carrying hook face challenges such as a limited acoustically effective surface area due to small damper diameter and the risk of the damper getting lost, while alternative designs are either expensive or compromise miniaturization.

Innovation Solution

A hearing aid with a carrying hook tip integrally connected to a damper, manufactured through plastic injection molding, providing a larger acoustically effective surface area and ensuring the damper is permanently connected, thus preventing loss and simplifying the design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a damper is introduced into the tip of the carrying hook, then acoustic damping is achieved, but the acoustically effective surface area is limited due to small damper diameter

Engineering Contradiction:

Improveacoustic damping effectivenessVSAvoidacoustically effective surface area

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The damper and carrying hook tip are merged into a single integrated component. The damper is directly formed as part of the carrying hook tip structure, eliminating the need for separate damper components and enabling the full internal cross-section of the tip to be utilized as damping surface area.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention transitions from a small-diameter circular damper to a damper that utilizes the entire internal cross-sectional area of the carrying hook tip. By changing the geometric configuration to maximize the use of available space within the tip, the acoustically effective surface area is significantly increased.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If a damper is introduced into the tip of the carrying hook, then acoustic damping is achieved, but the damper can easily get lost if accidentally removed

Engineering Contradiction:

Improveacoustic damping functionVSAvoiddamper loss

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The damper and carrying hook tip are merged into a single integrated component. The damper is directly formed as part of the carrying hook tip structure, eliminating the need for separate damper components and enabling the full internal cross-section of the tip to be utilized as damping surface area.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If a damper is held by a metal sleeve, then the damper is secured in position, but the effective diameter is limited by the sleeve

Engineering Contradiction:

Improvedamper positioningVSAvoideffective diameter

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The damper and carrying hook tip are merged into a single integrated component. The damper is directly formed as part of the carrying hook tip structure, eliminating the need for separate damper components and enabling the full internal cross-section of the tip to be utilized as damping surface area.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The metal sleeve that previously constrained the damper diameter is removed from the design. By eliminating this limiting component, the damper can extend to the full internal diameter of the carrying hook tip, maximizing the acoustically effective surface area.

Inventive Principle:

Principle #2Taking out (Extraction)

4Reliability

If filters are accommodated in the carrying hook, then damping function is achieved, but the carrying hook requires certain volume which counteracts miniaturization

Engineering Contradiction:

Improvedamping functionVSAvoidcarrying hook volume

Core Design Contradiction:

ReliabilityVSVolume of stationary object

Solution Approach 1:

The damper and carrying hook tip are merged into a single integrated component. The damper is directly formed as part of the carrying hook tip structure, eliminating the need for separate damper components and enabling the full internal cross-section of the tip to be utilized as damping surface area.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The damper is implemented as a thin membrane structure that is integrally formed with the carrying hook tip. This thin-film approach provides effective acoustic damping while minimizing the volume occupied within the carrying hook, enabling miniaturization of the overall hearing aid device.

Inventive Principle:

Principle #30Flexible shells and thin films

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 increases the acoustically effective surface area by 65% and reduces the impact of production tolerances and contamination, while maintaining structural stability and reducing the number of parts, resulting in a more effective and cost-efficient damping mechanism.

Implementation Method 1

acoustic dampers, in order to achieve improvements in sound, for example by smoothing sound channel resonances

Methodology Applied

Scientific EffectAcoustic absorption: Acoustic Absorption

Data Source

PatentUS8254607B2Hearing aid with acoustic damper

Publication Date: 2012.08.28 SIVANTOS PTE LTD

AI summary

A hearing aid is provided. The hearing aid has a one- or multi-part carrying hook. The one- or multi-part carrying hook has a tip for connection to a sound tube, the tip being connected integrally to a damper extending across the internal cross-section of the tip, the damper preferably being designed as a membrane.