Open-Ear Earphone Sliding Hook for Sound Outlet Alignment
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Solution Overview
Problem
Existing open-ear earphones lack the ability to adjust the position of the sound outlet relative to the ear canal opening, leading to poor sound alignment and reduced listening experience.
Innovation Solution
An earphone design featuring a sound emitting unit with a guide groove and a sliding connector, combined with a limiting structure, allows users to adjust the sound outlet's position to align with their ear canal, ensuring optimal acoustic performance and stability during wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sound outlet position is fixed on the earphone housing, then the structure is simple and stable, but the alignment with the user's ear canal opening is poor, reducing listening effect
Solution Approach 1:
The connector is designed to be movable relative to the earphone housing along a guide groove, allowing the sound outlet position to be dynamically adjusted. This enables the sound outlet to align with different ear canal opening positions while maintaining structural stability through the guide groove constraints.
Solution Approach 2:
The earphone is divided into separable components: the earphone housing with fixed sound outlet, and the connector with movable connection. This segmentation allows independent optimization of each part - the housing maintains structural stability while the connector provides adjustment capability.
2Adaptability or versatility
If the connector is made movable to adjust sound outlet position, then the alignment with ear canal opening is improved, but the device complexity increases due to additional limiting structure
Solution Approach 1:
The limiting structure uses elastic sheets as flexible elements that can deform to accommodate movement while providing restoring force. This flexible approach simplifies the connection structure compared to rigid mechanical limiting mechanisms, reducing overall device complexity.
Solution Approach 2:
The elastic sheet automatically limits the connector's movement range through its elastic properties, without requiring external control mechanisms. The connector self-regulates its position within the guide groove, simplifying the overall structure by eliminating the need for motors, sensors, or control circuits.
3Adaptability or versatility
If the connector can slide freely in the guide groove, then the adjustment range is maximized, but unintended displacement occurs during wear, reducing reliability
Solution Approach 1:
The elastic sheet is pre-configured to exert a limiting force on the connector before unintended displacement occurs. This preliminary constraint prevents the connector from moving beyond the desired adjustment range during wear, while still allowing full adjustment within the intended range.
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 adjustable sound outlet alignment enhances listening quality and comfort by improving sound transmission and preventing unintended displacement, making the earphone suitable for prolonged use.
Implementation Method 1
The first limiting portion and the second limiting portion are elastically abuts against each other and are movable relative to each other
Implementation Method 2
The second limiting portion includes a damping sheet
Data Source
AI summary
Disclosed is an earphone including a sound emitting unit, an ear hook and a limiting structure. The sound emitting unit includes an earphone housing provided with an opening and a guide groove communicating with the opening; the ear hook includes an ear hook body and a connector connected with each other, in which the ear hook body penetrates through the opening, and the connector is disposed in the guide groove and is movable along the guide groove; and the limiting structure includes a first limiting portion and a second limiting portion, which are elastically abutted against each other and are movable relative to each other. The connector of the ear hook is connected with the earphone housing, and the sound outlet can be aligned with the ear canal opening of the ear of different users as much as possible, achieving an optimal listening effect.