Loudspeaker Magnet System Pole Piece Electrical Integration
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Solution Overview
Problem
Conventional loudspeaker designs face challenges in miniaturization and cost optimization while maintaining performance, particularly in small size-constrained devices, where the electrical connection mechanisms are complex and costly, and there is a need for simpler and more efficient magnetic systems.
Innovation Solution
A magnet system is configured with two or more magnet subsystems and pole pieces that are electrically isolated from each other, serving both as magnetic components and electrical terminals, eliminating the need for separate contact springs or pads, and allowing for flexible electrical connections that reduce size and cost while maintaining performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electrical connection mechanisms are used in loudspeakers, then reliable electrical connection is achieved, but device complexity and cost increase
Solution Approach 1:
The patent combines the electrical connection function with the magnet system structure by making the pole pieces electrically conductive and electrically isolated from each other. This merging eliminates the need for separate contact springs or pads, reducing device complexity while maintaining reliable electrical connection between the coil and external circuitry
2Reliability
If conventional electrical connection mechanisms are used in loudspeakers, then reliable electrical connection is achieved, but manufacturing cost increases
Solution Approach 1:
The patent merges the electrical connection function with the magnet system structure by making the pole pieces electrically conductive and electrically isolated from each other. This eliminates the need for separate contact springs or pads, reducing the number of components and simplifying assembly processes, thereby reducing manufacturing cost while maintaining reliable electrical connection
3Reliability
If conventional electrical connection mechanisms are used in loudspeakers, then stable electrical connection is achieved, but loudspeaker size increases
Solution Approach 1:
The patent combines the electrical connection function with the magnet system structure by making the pole pieces electrically conductive and electrically isolated from each other. This integration eliminates the need for separate contact components, reducing the overall volume required for the electrical connection system while maintaining stable electrical connection
Solution Approach 2:
The pole pieces serve dual functions: providing magnetic flux paths and providing electrical connection terminals. This multi-functionality reduces the need for separate components, thereby reducing loudspeaker size while maintaining stable electrical connection
4Ease of manufacture
If simplified magnet system is used, then cost and size are reduced, but thermal management capability may worsen
Solution Approach 1:
The patent combines the electrical connection function with the magnet system structure by making the pole pieces electrically conductive and electrically isolated from each other. This integration eliminates the need for separate contact components, reducing the overall volume required for the electrical connection system while maintaining stable electrical connection
Solution Approach 2:
The pole pieces serve dual functions: providing magnetic flux paths and providing electrical connection terminals. This multi-functionality reduces the need for separate components, thereby reducing loudspeaker size while maintaining stable electrical connection
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 simplifies the mechanical construction, reduces costs, enables smaller size for equivalent performance, enhances thermal management, and improves reliability by eliminating redundant components, while minimizing interference with nearby antennas.
Implementation Method 1
A loudspeaker generally has a magnet, a coil and a diaphragm. The coil is electrically connected by wires or contacts to another member.
Implementation Method 2
A loudspeaker generally has a magnet, a coil and a diaphragm
Data Source
AI summary
An apparatus including an electromagnetic coil and a magnet system. The electromagnetic coil includes electrical leads. The magnet system forms electrical conductors connected to the electrical leads of the coil. The magnet system is configured to provide an electrical interface.