Speaker Magnetic Circuit Layout for Larger Vibration Space
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Solution Overview
Problem
Existing speaker designs with regular-shaped side magnets occupy significant space, limiting the vibration space and hindering optimal performance.
Innovation Solution
A speaker design featuring a magnetic circuit system with symmetrically spaced side magnetic units, including L-shaped side magnets and projections, which reduce the occupied space while maximizing the vibration space, enhancing magnetic force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If regular-shaped side magnets are used in the magnetic circuit system, then the structure is simple and easy to manufacture, but the occupied space is large which reduces the vibration space
Solution Approach 1:
The side magnetic circuit is divided into multiple side magnetic units (first side magnetic units and second side magnetic units) that are symmetrically spaced. Each unit includes magnets, pole cores, and yokes arranged in a segmented configuration, allowing the magnetic circuit to provide sufficient magnetic force while reducing the overall space occupation compared to a single large regular-shaped magnet.
2Device complexity
If regular-shaped side magnets are used in the magnetic circuit system, then the structure is simple, but the vibration space is insufficient which hinders optimal performance
Solution Approach 1:
The side magnetic units are arranged in a spatial configuration that utilizes three-dimensional space more efficiently. The magnets, pole cores, and yokes are positioned to create magnetic gaps that accommodate the vibration system, transforming the traditional two-dimensional planar arrangement into a three-dimensional optimized layout that maximizes vibration space while maintaining structural integrity.
3Volume of moving object
If side magnets are spaced apart to form magnetic gap, then the vibration space is increased, but the magnetic force may be reduced
Solution Approach 1:
The side magnetic units are combined with the center magnetic circuit to form an integrated magnetic system. The yokes of the side magnetic units connect to the pole cores, which in turn connect to the center magnetic circuit, creating a unified magnetic flux path that maintains strong magnetic force across the magnetic gaps while providing sufficient space for vibration.
Solution Approach 2:
The magnetic circuit system uses composite magnetic components including magnets (permanent magnets or electromagnetic magnets), pole cores (ferromagnetic materials), and yokes (magnetic conducting materials). This composite structure optimizes both the magnetic force generation and the spatial arrangement, allowing the system to provide strong magnetic fields across the gaps needed for vibration space.
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 design increases the vibration space and magnetic force, thereby improving the acoustic performance of the speaker.
Implementation Method 1
a magnetic circuit system configured to drive the vibration system to vibrate and generate sound
Implementation Method 2
a magnetic circuit system configured to drive the vibration system to vibrate and generate sound
Implementation Method 3
drive the vibration system to vibrate and generate sound
Data Source
AI summary
The present application provides a speaker. The magnetic circuit system of the speaker includes a lower clamping plate fixed to a base frame, a center magnetic circuit fixed to the lower clamping plate, and a side magnetic circuit provided around the center magnetic circuit to form a magnetic gap. The side magnetic circuit includes two symmetrically spaced first side magnetic units; each first side magnetic unit includes a first side magnet, a first side pole core, and a second side magnet. The first side magnet and/or the second side magnet include a first main body and a first projection, and a first grooving is formed by the first body portion and the first projection, so that an occupied space for the side magnets can be reduced, which allows for maximizing the volume of the magnet while fully utilizing the vibration space to enhance magnetic force.