Elastic Waterproof Speaker Ear Hook for Adaptive Ear Fit

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Solution Overview

Problem

Existing earphones lack waterproof functionality, which is desirable for use in wet environments such as swimming or rainy conditions while maintaining good sound quality.

Innovation Solution

A speaker device with an ear hook surrounded by an elastic waterproof material, accommodating a core housing and circuit housing, where the core housing can be positioned in front of or behind the ear, and a protective sleeve provides sealing to prevent water ingress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If earphones are made waterproof using rigid sealing structures, then waterproof reliability is improved, but comfort and adaptability to different ear shapes deteriorate

Engineering Contradiction:
Improvewaterproof reliabilityVSAvoidadaptability to different ear shapes
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent uses an elastic waterproof protective sleeve that can elastically deform to adapt to different ear shapes while maintaining waterproof sealing. The sleeve is made of elastic waterproof material that provides both flexibility for comfort and sealing capability for waterproofing, resolving the contradiction between rigid sealing and adaptability.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The ear hook is designed with elastic properties allowing it to dynamically adjust its shape according to the user's ear contour. The elastic deformation capability enables the device to maintain both waterproof sealing and comfort across different ear shapes, rather than using a fixed rigid structure.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the ear hook is made highly elastic to fit different ears, then adaptability is improved, but structural stability and sealing reliability worsen

Engineering Contradiction:
Improveadaptability to different earsVSAvoidstructural stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The ear hook combines elastic metal wire with an elastic waterproof protective sleeve made of elastic waterproof material. This composite structure provides both the elasticity needed for adaptability and the structural stability required for reliable waterproof sealing, as the sleeve reinforces the ear hook while maintaining flexibility.

Inventive Principle:
Principle #40Composite materials

3Reliability

If a protective sleeve is added for waterproofing, then waterproof function is improved, but device complexity increases

Engineering Contradiction:
Improvewaterproof functionVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The protective sleeve is integrated with the ear hook structure rather than being a separate component. The sleeve is formed around the ear hook in a unified manufacturing process, combining the supporting function of the ear hook with the waterproof sealing function of the sleeve into a single integrated structure, thereby reducing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The elastic waterproof protective sleeve serves multiple functions simultaneously: it provides waterproof sealing, supports the ear hook structure, and enables the ear hook to elastically adapt to different ear shapes. This multi-functionality reduces the need for additional separate components, simplifying the overall device structure.

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

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 achieves waterproofing and maintains sound quality by allowing the core housing to fit securely against the ear, preventing water entry and enhancing user comfort and durability.

Implementation Method 1

The protective sleeve may be made of an elastic waterproof material. The core housing may be fixed to the first plug end and elastically abutted against the protective sleeve. The ear hook may be elastic, and a position of the core housing relative to the ear hook may be changed according to an elastic deformation of the ear hook

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12368991B2Speaker device
Publication Date: 2025.07.22 SHENZHEN SHOKZ CO LTD
  • US12368991B2 patent drawing
  • US12368991B2 patent drawing
  • US12368991B2 patent drawing

AI summary

The present disclosure relates to a speaker device. The speaker device may include an ear hook, a core housing for accommodating an earphone core, and a circuit housing for accommodating a control circuit or a battery. The ear hook may include a first plug end and a second plug end. The ear hook may be surrounded by a protective sleeve which may be made of an elastic waterproof material. The ear hook may be elastic, and a position of the core housing relative to the ear hook may be changed according to an elastic deformation of the ear hook, thereby the core housing may fit a user in front of or behind an ear of the user. The circuit housing may be fixed to the second plug end. The control circuit or the battery may drive the earphone core to vibrate to generate a sound.