Earbud with Fluid-Driven Bladder for Adjustable Fit
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Solution Overview
Problem
Conventional earbuds are hard, difficult to adjust, and prone to falling due to inconsistent ear canal sizes, leading to discomfort and poor fit.
Innovation Solution
An earbud design featuring a connection member, regulating valve, and bladder with adjustable expansion and contraction capabilities, utilizing elastic gel materials for improved fit and sound insulation, allowing for size adjustment and secure fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional earbuds are made of hard materials like silicone gel or foam, then sound insulation is improved, but comfort and wearability deteriorate due to swelling sensation and inability to adjust to different ear canal sizes
Solution Approach 1:
The earbud incorporates a flexible membrane that can dynamically change its shape and size to adapt to different ear canal dimensions. The membrane transitions from a compressed state during insertion to an expanded state that conforms to the ear canal, providing both comfort and effective sound insulation.
Solution Approach 2:
The earbud utilizes materials and结构设计 that allow parameter changes in the membrane's physical properties. The membrane can change its volume and shape through elastic deformation, enabling it to adjust to varying ear canal sizes while maintaining sealing performance for sound insulation.
2Ease of manufacture
If conventional earbuds use fixed size design, then manufacturing simplicity is improved, but adaptability deteriorates as they cannot adjust to different ear canal sizes, causing them to drop or cause swelling
Solution Approach 1:
The earbud employs a dynamic membrane structure that can change its dimensions to fit different ear canals. This single adaptable component replaces the need for multiple fixed-size earbuds, maintaining manufacturing simplicity while achieving universal adaptability across different user anatomies.
Solution Approach 2:
The flexible membrane serves multiple functions: it provides structural support, creates the acoustic seal, and adapts to various ear canal sizes. This multi-functional design eliminates the need for separate components for different sizes, simplifying manufacturing while enhancing adaptability.
3Object-affected harmful factors
If conventional earbuds are designed to be tightly fitted, then sound insulation is improved, but comfort deteriorates due to swelling sensation and difficulty in wearing for long periods
Solution Approach 1:
The membrane's physical parameters (volume, shape, pressure) are dynamically adjusted to achieve optimal sealing without excessive tightness. The membrane expands gradually to conform to the ear canal, creating an effective seal that is comfortable for extended wear by distributing pressure evenly.
Solution Approach 2:
The membrane provides localized sealing at the critical interface with the ear canal while maintaining flexibility in other areas. This localized adaptation ensures effective sound insulation at the seal point without requiring the entire earbud structure to be rigid or overly tight, thereby improving comfort for long-term wear.
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 earbud provides a comfortable, secure fit, effective sound insulation, and adaptability to different ear sizes, with the ability to expand and contract for better sealing and ease of use.
Implementation Method 1
When the bladder is compressed, the fluid flows from the second cavity, passes through the through hole and the flow channel, pushes open the adjustment opening and enters the first cavity to make the earbud body expand
Implementation Method 2
earbuds are generally made of silicone gel, low-pressure foam material or high-elastic polyester material
Data Source
AI summary
An earbud includes a connection member, a regulating valve, an earbud body and a bladder. The connection member includes opposite first and second ends and defines a through hole extending through the first end and the second end. The regulating valve defines a flow channel therein and incudes a connection end and a working end. The connection end is tightly connected to the connection member, and the working end defines a flat adjustment opening. The flow channel communicates with the through hole of the connection member. The earbud body is mounted around the regulating valve and connected tightly to the connection member or the regulating valve. The earbud body defines a first cavity therein, and the bladder is tightly connected to the connection member and defines a second cavity for containing fluid therein. The second cavity communicates with the through hole of the connection member.