Earphone Speaker Unit with Integrated Microphone Seating
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Solution Overview
Problem
The design of speaker units for earphones is constrained by spatial limitations due to the need for a separate bracket to mount the microphone, limiting the available design space.
Innovation Solution
A speaker unit configuration where the microphone is directly mounted on the frame or grill without a separate bracket, allowing for a standing arrangement of magnetic components that reduces the size of the earphone and secures sufficient inner space, with sound emission and reception paths optimized for both low and high-frequency sound reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate bracket is used to mount the microphone, then the microphone can be securely mounted, but the design space of the speaker unit is limited
Solution Approach 1:
The patent merges the microphone mounting function directly into the frame structure by providing a seating portion formed on the frame itself. This eliminates the need for a separate bracket, thereby securing the microphone reliably while maximizing the design space of the speaker unit.
Solution Approach 2:
The frame is designed to serve multiple functions: it provides structural support, guides the magnetic components (yoke, magnets), and includes an integrated seating portion for microphone mounting. This multi-functionality reduces the need for additional separate components like brackets.
2Reliability
If additional mounting structures are added, then the microphone can be mounted, but the size of the earphone increases
Solution Approach 1:
The mounting function is merged into the frame structure through the seating portion, eliminating the need for additional separate mounting structures. This keeps the earphone compact while ensuring reliable microphone mounting.
3Ease of manufacture
If a separate bracket is used, then the microphone mounting is simplified, but the manufacturing complexity of the speaker unit increases
Solution Approach 1:
The seating portion is formed as an integrated part of the frame structure, which simplifies the overall manufacturing process by reducing the number of separate components that need to be assembled. The microphone can be directly mounted on the seating portion without requiring separate bracket assembly.
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
This configuration enables efficient sound reproduction across frequency ranges while eliminating the need for additional mounting structures, thereby maximizing design space and reducing the earphone's size without additional configurations.
Implementation Method 1
a magnet, a plate fixed to the frame and in contact with the magnet, a diaphragm, a coil disposed to overlap the magnet and the plate in a radial direction
Data Source
AI summary
A speaker unit is provided. The speaker unit may include a frame; a yoke elongated on the frame along a front-to-rear direction; a first magnet disposed on one side of the yoke; a first plate disposed on one side of the first magnet; a first diaphragm disposed on one side of the first plate; a first coil fixed to the first diaphragm; a second magnet disposed on the other side of the yoke; a second plate disposed on the other side of the second magnet; a second diaphragm disposed on the other side of the second plate; a substrate disposed on the frame; a microphone electrically connected to the substrate; and a second coil fixed to the second diaphragm, wherein the first magnet and the second magnet are both in contact with the yoke, the frame includes a seating portion, and the microphone is disposed in the seating portion.