Split Bone Conduction Earphone with Elastic Support
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Solution Overview
Problem
Existing bone conduction earphones suffer from instability during exercise due to gravity and external forces, leading to poor sound transmission and user discomfort.
Innovation Solution
A split bone conduction earphone design featuring a detachable housing with an elastic support piece and ear hook that securely attaches the bone conduction vibrator to the ear, along with a dedicated cavity for the vibrator and battery, enhancing stability and sound quality while preventing sound leakage and facilitating ergonomic fit and charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the bone conduction earphone is designed as an integral C-shaped structure, then the structure is simple, but the stability during exercise is poor due to insufficient clamping force
Solution Approach 1:
The earphone body is divided into a first housing and a second housing that are detachably mounted. The first housing includes a fitting part, connecting part, and supporting part that form a three-point support structure with the ear hook, improving stability without requiring a completely integral design.
Solution Approach 2:
An elastic support piece is introduced that can deform elastically to adapt to different ear shapes and provide continuous clamping force. This dynamic element allows the structure to maintain stability during exercise while still being relatively simple.
2Device complexity
If the bone conduction vibrator is closely attached to the bones using only its own clamping force, then the structure is simple, but the attachment firmness is insufficient during exercise
Solution Approach 1:
The elastic support piece is specifically positioned at the inner ear area to provide enhanced local clamping force where needed. The support piece includes an elastic rubber plug that directly contacts the ear to improve attachment firmness at the critical vibration transmission point.
Solution Approach 2:
The ear hook, elastic support piece, and earphone body are combined to work together as an integrated attachment system. The ear hook provides initial positioning, while the elastic support piece provides continuous clamping force, creating a reliable attachment mechanism.
3Volume of moving object
If the bone conduction vibrator and battery are placed in the same cavity, then the device is compact, but sound quality deteriorates due to sound leakage and vibration interference
Solution Approach 1:
The housing is divided into a bone conduction cavity for the vibrator and a battery cavity for the battery. This segmentation isolates the vibration source from the battery, preventing interference and sound leakage while maintaining a compact overall device size through detachable housing design.
4Ease of operation
If the earphone body is made to match the contour of the human face, then the ergonomic fit is improved, but the manufacturing complexity increases
Solution Approach 1:
The earphone body is divided into multiple parts (fitting part, connecting part, supporting part) that can be manufactured separately using standard processes and then assembled. This reduces manufacturing complexity while still achieving the overall ergonomic shape that matches the human face contour.
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 design improves stability and sound quality by ensuring the bone conduction vibrator is securely attached to the ear, reducing sound leakage, and allowing for convenient charging, thereby enhancing user experience and comfort.
Implementation Method 1
the first housing is provided with an elastic support piece that is configured to match the contour of the human inner ear
Implementation Method 2
sound is converted into mechanical vibrations of different frequencies, and the sound waves are transmitted through the human skull, bone labyrinth, inner ear lymphatic fluid, spiral organs, auditory nerve, and auditory center
Data Source
AI summary
The present application relates to a split bone conduction earphone including an earphone body, an ear hook and a bone conduction vibrator, a transmission surface of the bone conduction vibrator is provided on the side wall of the earphone body; the ear hook is provided on the earphone body for cooperating with the earphone body to make the transmission surface of the bone conduction vibrator firmly attached to a predetermined position; the earphone body includes a first housing and a second housing; the first housing is provided with an elastic support piece that matches the contour of the human inner ear; the first housing and the second housing form a bone conduction cavity and a battery cavity; only the bone conduction vibrator is installed on the bone conduction cavity, and the battery cavity is installed with a battery to power the bone conduction vibrator.