Miniature Moving-Coil Speaker With Flexible Circuit Board
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional miniature moving-coil speakers face challenges in miniaturization and product design due to increased dimensions and complex wiring, which restricts installation height and complicates wire-leading and wire-combing.
Innovation Solution
A miniature moving-coil speaker design featuring a magnetic circuit system, a vibration system integrated with a diaphragm and voice coil, and an auxiliary enclosure with a flexible circuit board that can be adjusted and fixed in various configurations, including loop-shaped and bent structures, to reduce installation height and simplify electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If rigid PCB or direct soldering wires are used to connect the miniature moving-coil speaker, then electrical connection is achieved, but the product installation height increases and overall dimensions increase
Solution Approach 1:
The patent employs a flexible PCB instead of a rigid PCB to connect the miniature moving-coil speaker. The flexible PCB can be bent and routed in various configurations, allowing it to accommodate different installation positions and wire-leading requirements without increasing the product installation height. This flexible connection approach resolves the contradiction by providing manufacturing flexibility while maintaining compact dimensions.
Solution Approach 2:
The patent transitions from a rigid planar connection approach to a three-dimensional flexible connection approach. The flexible PCB can be routed through different spatial paths, including bending along side walls and forming loop shapes, which allows the electrical connection to be achieved without increasing the vertical installation height. This dimensional flexibility addresses both the height reduction requirement and the wire-leading complexity.
2Volume of moving object
If the wire-leading of the miniature moving-coil speaker is routed according to product performance and connection terminal position, then electrical connection is achieved, but the overall dimensions of the product increase
Solution Approach 1:
The flexible PCB enables compact routing of electrical connections by allowing the circuit board to bend and conform to the available space within the product. This flexibility permits the wiring to be routed through tighter spaces and around obstacles without increasing the overall product volume, while still achieving the required electrical connections.
Solution Approach 2:
The flexible PCB provides dynamic adaptability in wiring configuration, allowing the connection path to be adjusted according to different product layouts and terminal positions. This dynamic flexibility enables the wiring to be optimized for each specific application without requiring a fixed, space-consuming rigid PCB design, thus reducing overall dimensions while maintaining connection complexity management.
3Adaptability or versatility
If the connection terminal position is constrained by product performance requirements, then functional performance is achieved, but the difficulty of product design increases
Solution Approach 1:
The flexible PCB serves as an adaptable connection medium that can be configured to accommodate various terminal positions and connection requirements. Its flexibility allows the design to adapt to different product layouts and performance requirements without requiring complex redesigns, thus reducing product design difficulty while maintaining connection versatility.
Solution Approach 2:
The flexible PCB provides universal adaptability for different connection scenarios and terminal positions. Rather than designing separate rigid PCB layouts for each possible configuration, the flexible PCB can be routed to serve multiple connection requirements, simplifying the product design process while maintaining versatility in accommodating different terminal positions and performance requirements.
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 design reduces product installation height, facilitates flexible wire-leading and wire-combing, and simplifies product design by allowing adjustable and space-saving electrical connections.
Implementation Method 1
a vibration system comprising a diaphragm and a voice coil integrated with the diaphragm
Data Source
AI summary
Disclosed is a miniature moving-coil speaker comprising a magnetic circuit system, a vibration system, and an auxiliary system for fixing the magnetic circuit system and the vibration system. The vibration system comprises a diaphragm and a voice coil integrated with the diaphragm. The auxiliary system comprises a plastic enclosure. The diaphragm is installed correspondingly at one end face of the enclosure, while the magnetic circuit system is installed at the other end face of the enclosure opposite the diaphragm; also: a flexible circuit board is arranged on the end face of the enclosure where the magnetic circuit system is installed, and the voice coil is electrically connected to the flexible circuit board. The design reduces product installation height, while at the same time facilitates wire-leading and wire-combing for the miniature moving-coil speaker, and simplifies product design.