Bone-Conduction Earphone Core Module for Unblocked Ear Canals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing earphones, particularly bone conduction earphones, face challenges in providing comfortable and reliable sound transmission without obstructing the ear canal, and there is a need for improved design to enhance user experience and functionality.
Innovation Solution
The earphone design incorporates a core module with a core housing and a magnet that can attach to a magnetic object, featuring a magnetic conduction shield and coil configuration, along with an ear hook assembly that includes a decoration bracket for wiring and a button mechanism, enhancing sound transmission and user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional in-ear or over-ear earphones are used, then sound transmission is achieved, but the ear canal is blocked or covered
Solution Approach 1:
The earphone system is divided into separate functional modules: a core module containing the vibration generator and a separate ear hook assembly. This segmentation allows the core module to contact the skull for bone conduction while the ear hook provides structural support without blocking the ear canal.
Solution Approach 2:
The patent introduces bone conduction as an intermediary mechanism to transmit sound vibrations directly through the skull bones to the inner ear, bypassing the blocked ear canal and eardrum while still achieving effective sound transmission.
2Ease of operation
If bone conduction is used for sound transmission, then the ear canal is liberated, but the device must be close to the skull for effective transmission
Solution Approach 1:
The ear hook assembly creates a stable positioning structure that replicates the natural anatomy of the ear, with the core module positioned to contact the skull at the temporal bone area. This copying approach ensures consistent contact pressure and positioning without complex adjustment mechanisms.
3Volume of moving object
If the core module is made compact for portability, then the magnet size is reduced, but the attachment force to magnetic objects decreases
Solution Approach 1:
The patent optimizes the magnet parameters by selecting specific diameter and thickness ranges that balance attachment force and module size. The magnet dimensions are carefully controlled to provide sufficient magnetic force while maintaining a compact core module design.
4Force
If the magnet diameter is increased to improve attachment force, then the magnetic gap increases, but the coil efficiency decreases
Solution Approach 1:
The patent establishes specific parameter ranges for magnet diameter and thickness that optimize both attachment force and coil efficiency. By controlling the magnet dimensions within these ranges, the design achieves a balance between magnetic attachment capability and electromagnetic conversion efficiency.
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 provides improved sound conduction through bone conduction, enhances user comfort with balanced weight distribution, and offers aesthetic appeal while maintaining structural integrity and ease of use.
Implementation Method 1
The core may include a magnet configured such that the core module is attachable to a magnetic object through one side of the bottom wall
Implementation Method 2
The core may include a magnet configured such that the core module is attachable to a magnetic object through one side of the bottom wall
Implementation Method 3
bone conduction is a sound conduction manner. That is, electrical signals are converted into mechanical vibrations. The mechanical vibrations are transmitted through the skull, the bony labyrinth, the endolymph, the spiral organ, the cochlear nerve, the auditory pathway in the cerebral cortex of a human, etc.
Data Source
AI summary
The present disclosure provides an earphone including a core module. The core module may include a core housing and a core. The core housing may include a bottom wall and an annular peripheral wall. When a user wears the earphone, the bottom wall may face the head of the user. One end of the annular peripheral wall may be integrally connected with the bottom wall, the other end of the annular peripheral wall that is away from the bottom wall includes an opening, and the core may be disposed in the core housing through the opening. The core may include a magnet configured such that the core module is attachable to a magnetic object through one side of the bottom wall.