Integrated Loudspeaker Suspension Structure for Uniform Diaphragm Motion
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Solution Overview
Problem
Conventional loudspeakers suffer from uneven moving speeds of the vibrating diaphragm due to differences in elasticity between the spider and diaphragm, requiring a large magnetic force to maintain stroke, leading to potential noise and reduced sound quality.
Innovation Solution
A loudspeaker design that integrates a suspension edge and limiting part made of the same material, connected by a connecting member with integral arms, allowing synchronized movement of the diaphragm and voice coil along the central axis, eliminating the need for a separate spider and reducing thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate spider structure is used to restrict voice coil movement, then the voice coil can be constrained to move along the central axis, but the elasticity difference between spider and diaphragm causes uneven moving speed and requires larger magnetic force
Solution Approach 1:
The patent merges the spider and diaphragm into a single integrated structure where the diaphragm itself serves dual functions: as the vibrating element and as the constraint mechanism for the voice coil. This eliminates the separate spider component and ensures uniform elasticity throughout the moving assembly, resolving the contradiction between constraint effectiveness and moving speed uniformity.
2Ease of operation
If a separate spider structure is arranged around the voice coil, then the voice coil movement can be restricted, but the overall thickness of the loudspeaker increases
Solution Approach 1:
By integrating the constraint function into the diaphragm structure itself, the patent eliminates the need for a separate spider assembly that would add thickness. The diaphragm's own structural features provide the necessary voice coil constraint, achieving movement restriction without increasing the loudspeaker's overall thickness.
3Adaptability or versatility
If different materials are used for spider and diaphragm, then each component can be optimized for its specific function, but the elasticity difference causes uneven moving speed
Solution Approach 1:
The patent combines the diaphragm and spider into a single material structure, allowing the entire assembly to be made from one material with uniform elasticity. This eliminates the elasticity mismatch between different materials while still optimizing the overall structure for both vibration and constraint functions.
Solution Approach 2:
The diaphragm is designed to perform multiple functions simultaneously: vibration production and voice coil constraint. This multi-functionality eliminates the need for a separate spider component and ensures uniform elastic properties throughout the moving assembly, resolving the contradiction between component optimization and moving speed uniformity.
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
Ensures even moving speed of the diaphragm, reduces thickness, and enhances sound quality by minimizing noise and increasing stroke, particularly for medium and low frequency sounds.
Implementation Method 1
When the audio signal is input, based on the principle of electromagnetic induction, the magnetic loop system can induce the voice coil to reciprocate along the central axis of the loudspeaker
Implementation Method 2
the suspension edge and the limiting part are made of the same material, for example, both the suspending edge and the limiting part can be made of rubber materials, so that the elasticity of the suspending edge and the limiting part are the same
Data Source
AI summary
The present invention discloses a loudspeaker, and a manufacturing method and a sound production method therefor. The loudspeaker includes a vibrating diaphragm, a frame, a magnetic loop system, a voice coil, a suspension edge, a connecting member and a limiting part, wherein the magnetic loop system is arranged on the frame. A lower end of the voice coil is coupled to the magnetic loop system. A suspension edge outer side and a suspension edge inner side of the suspension edge extend and are respectively connected to the frame and the vibrating diaphragm, so as to allow the suspension edge to be maintained between the frame and the vibrating diaphragm. The connecting member is configured to connect to the vibrating diaphragm and the voice coil. A limiting outer side and a limiting inner side of the limiting part extend and are respectively connected to the frame and the connecting member, so as to allow the limiting part to be maintained between the frame and the connecting member.