Wearable Interface Assembly for Compact Serviceable Ear Devices

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Solution Overview

Problem

Existing in-ear and over-ear electronic devices, such as hearing aids and earphones, face challenges in miniaturization and weight reduction due to their large size and weight.

Innovation Solution

A wearable device design featuring a housing assembly with a connection port, interface assembly, and control board assembly, utilizing a fixing structure to connect internal components, allowing for miniaturization and weight reduction by optimizing the use of internal space and facilitating disassembly and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If traditional housing structure with internal frame is used, then structural stability is maintained, but device size and weight increase

Engineering Contradiction:
Improvedevice weightVSAvoidstructural complexity
Core Design Contradiction:
Weight of moving objectVSDevice complexity

Solution Approach 1:

The patent removes the traditional internal frame structure from the housing assembly. The interface assembly is directly connected to the housing assembly without requiring an internal frame for support, thereby eliminating unnecessary structural components and reducing overall device weight while maintaining structural stability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The interface assembly is integrated directly with the housing assembly through direct connection. The fixing member connects the interface assembly to the housing assembly wall, merging what were previously separate structural elements (internal frame and housing) into a more compact configuration, reducing both weight and structural complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Volume of moving object

If components are tightly integrated, then device miniaturization is achieved, but maintenance and repair difficulty increases

Engineering Contradiction:
Improvedevice volumeVSAvoidmaintenance ease
Core Design Contradiction:
Volume of moving objectVSEase of repair

Solution Approach 1:

The device is divided into distinct modular assemblies: housing assembly, interface assembly, and control board assembly. Each assembly can be independently accessed and maintained. The interface assembly can be disconnected from the housing assembly by separating the fixing member from the housing assembly wall, enabling easy maintenance without requiring complete disassembly of the entire device.

Inventive Principle:
Principle #1Segmentation

3Manufacturing precision

If fixed internal structure is used, then manufacturing precision is maintained, but assembly and disassembly time increases

Engineering Contradiction:
Improveassembly precisionVSAvoidassembly time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The connection between the interface assembly and housing assembly is designed to be dynamically adjustable. The fixing member can be easily attached to and detached from the housing assembly wall through simple insertion and engagement movements along the radial direction, enabling rapid assembly and disassembly while maintaining precise positioning through the fixing structures.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4694209A1Wearable device
Publication Date: 2026.02.11 SHENZHEN SHOKZHEAR CO LTD
  • EP4694209A1 patent drawingFigure 1~2
  • EP4694209A1 patent drawingFigure 3
  • EP4694209A1 patent drawingFigure 4

AI summary

The present disclosure provides a wearable device comprising a housing assembly, an interface assembly, and a control board assembly. The housing assembly includes a connection port. The interface assembly includes a wiring end and an interface end opposite to each other, the interface assembly is disposed within the housing assembly in a manner that the interface end faces the connection port, and the interface assembly is connected to an inner wall of the housing assembly. The control board assembly is disposed within the housing assembly and is connected to the wiring end through a wire assembly. By arranging the interface end and the connection port to face and communicate with each other, an external device may be connected to the wearable device in a plug-in manner through the interface assembly, thereby supporting functions such as device debugging, system upgrades, and adjustment of operating modes and parameters. Meanwhile, by connecting the interface assembly to the housing assembly, the housing assembly may be directly used as an installation carrier for the interface assembly, which not only fully utilizes the structure and internal space of the housing assembly, but also facilitates miniaturization and weight reduction of the wearable device, and facilitates disassembly and maintenance of the wearable device.