Foam Receiver Suspension for Back-Vented Hearing Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hearing devices face challenges in providing adequate ventilation for back-vented receivers due to size limitations, which can restrict the provision of low-frequency audio signals and compromise the acoustic power output.
Innovation Solution
The use of a foam material for the receiver suspension allows for a reduction in the size of the hearing device while maintaining or improving the quality and acoustic power of the audio output from the back-vented receiver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If additional ventilation space is provided in the hearing device for back-venting the receiver, then the acoustic power output and low frequency audio signal provision are improved, but the size of the hearing device increases
Solution Approach 1:
The receiver suspension is made of foam material with porous structure that allows air to pass through. This enables the suspension itself to function as ventilation space for the back-vented receiver, eliminating the need for separate ventilation cavities and reducing overall device size while maintaining acoustic power output
Solution Approach 2:
The foam receiver suspension performs multiple functions simultaneously: it provides mechanical suspension and damping for the receiver, while its porous structure also serves as ventilation space for low-frequency audio signals. This multi-functionality resolves the contradiction between providing ventilation space and maintaining compact device size
2Volume of moving object
If the size of the hearing device is reduced, then the flexibility in design and wearability are improved, but the ventilation space for the back-vented receiver is limited
Solution Approach 1:
The foam material's porous structure enables air permeability within the compact suspension component, allowing adequate ventilation space to be provided within the reduced device size without compromising the back-venting function
3Volume of moving object
If a foam material is used for the receiver suspension, then the size of the receiver cavity is reduced, but the structural support and stability may be compromised
Solution Approach 1:
The foam material provides a composite structure that combines mechanical support properties with acoustic ventilation properties, enabling reduced receiver cavity size while maintaining adequate structural support for the receiver
Solution Approach 2:
The foam's cellular structure provides both mechanical cushioning and air permeability, allowing the receiver cavity size to be reduced while the suspension maintains its structural support function through the foam's inherent mechanical properties
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 design enables a more compact hearing device with improved flexibility in design, maintaining low-frequency output quality and providing enhanced shock protection and vibration isolation.
Implementation Method 1
the disclosed hearing device may enable shock protection and/or vibration isolation of the back-vented receiver
Implementation Method 2
the disclosed hearing device may enable shock protection and/or vibration isolation of the back-vented receiver
Implementation Method 3
a receiver suspension, wherein the receiver suspension optionally is made of or at least comprises a foam material
Data Source
AI summary
A hearing device is disclosed. The hearing device comprises a housing comprising a receiver cavity. The hearing device comprises a back vented receiver. The hearing device comprises a receiver suspension. The receiver suspension is made of a foam material.