Speaker Magnetic Circuit Clamping for Secure Magnet Fixation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing magnetic circuit systems in audio devices have poor fixing effects due to adhesive assembly, which affects the reliability and acoustic performance of speakers.
Innovation Solution
A magnetic circuit system with a clamping portion that securely locks the main magnet assembly in both horizontal and vertical directions, using a combination of main and auxiliary magnets with opposite polarities and a soft magnet, along with a magnetic yoke and pole plate assembly, to enhance fixation and reduce space loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If magnets are assembled through adhesion with glue, then the magnetic circuit system can be manufactured, but the fixing effect is poor and reliability is significantly affected
Solution Approach 1:
The patent replaces the chemical adhesion method (glue assembly) with a mechanical clamping system. The clamping portion with extending portions mechanically presses the soft magnet against the magnets, providing reliable fixation through mechanical force rather than chemical bonding, thus resolving the contradiction between ease of manufacture and reliability.
Solution Approach 2:
The patent introduces a clamping portion as an intermediary component between the magnets and the soft magnet. This clamping portion acts as a mediator that provides secure mechanical retention, overcoming the insufficiency of direct glue assembly while maintaining the functional relationship between the magnetic components.
2Reliability
If a clamping portion is added to improve fixation, then reliability is enhanced, but device complexity increases
Solution Approach 1:
The patent merges the clamping portion with the existing magnetic circuit system structure. The clamping portion is integrated into the assembly, combining multiple functions (clamping, positioning, and structural support) into a single component, thereby enhancing reliability without proportionally increasing device complexity.
Solution Approach 2:
The clamping portion is designed to perform multiple functions: it provides mechanical clamping force for fixation, positions the soft magnet accurately, and integrates with the overall magnetic circuit structure. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while improving reliability.
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 solution significantly improves the reliability of the magnetic circuit system, leading to enhanced acoustic performance by ensuring a firm fixation of the main magnet assembly, thereby improving the overall sound quality of the speaker.
Implementation Method 1
a magnetic circuit system 15 and a frame 17 assembled with the cover plate 11. The magnetic circuit system 15 is configured to generate a magnetic field
Implementation Method 2
a voice coil 135 disposed in the magnetic gap 154 and configured to drive the diaphragm 131 to vibrate and sound when a current flows therein
Data Source
AI summary
The present disclosure provides a magnetic circuit system. The magnetic circuit system comprises a main magnet assembly, the main magnet assembly includes a first main magnet, a second magnet spaced with the first main magnet, and a soft magnet clamped between the first main magnet and the second main magnet, poles of the first and second main magnets with a same polarity are opposite to each other, and the magnetic circuit system further comprises a clamping portion configured to fix the main magnet assembly. The present disclosure further provides a speaker using the magnetic circuit system. In the speaker provided by the present disclosure, through adding a clamping portion in the magnetic circuit system, the reliability of the magnetic circuit system can be enhanced, thereby improving acoustics performance of the speaker.