Earpiece Preparation Device Thermal Control

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Solution Overview

Problem

Existing earpiece customization devices face challenges in reliably and reproducibly preparing earpieces for in-situ customization, especially in varying environments and by users without specialized knowledge, while ensuring hygienic standards and compatibility with hearing devices.

Innovation Solution

A device comprising an energy release unit with a receiving chamber and a controller to manage energy delivery, allowing for controlled thermal energy release at different levels to prepare earpieces for customization, integrated with a casing for portability and a deposition area for hearing devices, facilitating easy and secure energy transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If thermal energy is released to prepare earpiece for customization, then the earpiece becomes deformable for in-situ customization, but the temperature control becomes critical to avoid overheating or insufficient preparation

Engineering Contradiction:
Improvedeformability for customizationVSAvoidtemperature control precision
Core Design Contradiction:
Adaptability or versatilityVSTemperature

Solution Approach 1:

The patent applies parameter changes by controlling the thermal energy release parameters (temperature and time) to transform the earpiece material from a rigid state to a deformable state. The energy release unit adjusts the thermal parameters to achieve the transition temperature of the material, enabling customization while preventing overheating through controlled energy delivery.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The controller implements feedback control by monitoring the energy release process and adjusting the thermal energy delivery accordingly. The controller receives signals about the preparation progress and modulates the energy release unit to maintain optimal temperature within the range that enables deformability without causing overheating or insufficient preparation.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If energy release unit is integrated into portable casing, then device portability is improved, but device complexity increases

Engineering Contradiction:
ImproveportabilityVSAvoiddevice structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into a single integrated device: the energy release unit, controller, and deposition area are combined within a portable casing. This integration allows the device to be handheld and mobile while providing complete earpiece preparation functionality, eliminating the need for separate equipment for heating, controlling, and supporting the earpiece.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The portable device serves multiple functions: it releases thermal energy to prepare the earpiece, supports the hearing device via the deposition area, and controls the entire process through the controller. This multi-functionality reduces the need for multiple separate devices and enables comprehensive earpiece customization in mobile settings.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If controlled energy release is implemented, then preparation reliability is improved, but device complexity increases

Engineering Contradiction:
Improvepreparation consistencyVSAvoidcontrol system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The controller implements feedback control by monitoring the energy release process and adjusting the thermal energy delivery accordingly. The controller receives signals about the preparation progress and modulates the energy release unit to maintain optimal temperature within the range that enables deformability without causing overheating or insufficient preparation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The device performs preliminary actions by pre-setting the energy release parameters and preparation conditions before the actual earpiece customization. The controller is pre-programmed with the required energy levels and timing, and the deposition area is prepared to support the hearing device, ensuring consistent and reliable preparation without requiring complex real-time adjustments.

Inventive Principle:
Principle #10Preliminary action

4Ease of operation

If deposition area for hearing device is added, then ease of operation is improved, but device area increases

Engineering Contradiction:
Improvedevice usabilityVSAvoiddevice footprint
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The patent merges the deposition area for the hearing device with the compact portable casing. The deposition area is integrated into the available space within the casing, allowing the device to support both the earpiece (via energy release unit) and the hearing device simultaneously without requiring separate equipment or additional workspace.

Inventive Principle:
Principle #5Merging (Combining)

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 device enables reliable and reproducible earpiece customization preparation, allowing for efficient energy transfer and ensuring user safety and hygiene, even in mobile settings, while maintaining compatibility with hearing devices.

Implementation Method 1

The energy release unit is configured to release thermal energy into the receiving chamber

Methodology Applied
Scientific EffectThermal energy release: Heating

Implementation Method 2

the controller is configured to control the energy releasing of the energy release unit such that a predetermined amount of energy can be supplied to the earpiece inside the receiving chamber

Methodology Applied
Scientific EffectEnergy conversion: Joule Heating

Data Source

PatentEP3900398B1Preparation device and system for in-situ customization of an earpiece
Publication Date: 2025.02.19 SONOVA AG
  • EP3900398B1 patent drawingFigure 1~2
  • EP3900398B1 patent drawingFigure 3~4
  • EP3900398B1 patent drawingFigure 5~6

AI summary

The disclosure relates to a device for preparing an earpiece for its customization, the device including an energy release unit (31, 131) comprising a receiving chamber (34, 134, 184) for receiving the earpiece and configured to release energy into the receiving chamber (34, 134, 184). The disclosure further relates to a system for customizing an earpiece comprising the earpiece (11) and the preparing device (21, 51, 61, 71, 121). To allow preparing the earpiece for in-situ customization in a reliable and/or reproducible manner, the disclosure proposes a controller (25) configured to control said energy releasing of the energy release unit (31, 131) such that a predetermined amount of energy can be supplied to the earpiece inside the receiving chamber (34, 134, 184).