Integrated Loudspeaker Magnetic Circuit Assembly Without Glue
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Solution Overview
Problem
Existing loudspeakers require large amounts of glue for bonding components, leading to environmental concerns and complex manufacturing processes, while also needing to integrate parts for better acoustic performance, lower material costs, and reduced market prices.
Innovation Solution
A loudspeaker design with an integrated frame that surrounds and fixes the yoke, eliminating the need for glue by using a frame, strut, and flange to stabilize the top plate, magnet, and yoke, along with a separate sleeve for precise alignment and stability, and a simplified manufacturing process through injection molding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If glue bonding is used to assemble the top plate, magnet, and yoke, then the components can be connected, but a large volume of glue is used which is not environmentally friendly and increases manufacturing complexity
Solution Approach 1:
The frame, strut, and flange are merged into a single integrated component formed by injection molding. This eliminates the need for separate glue bonding operations and reduces manufacturing complexity while maintaining structural integrity of the magnetic circuit system
Solution Approach 2:
The invention extracts and eliminates the glue bonding process entirely by designing an integrated frame structure that mechanically connects the top plate, magnet, and yoke through the strut passing through aligned holes, replacing chemical bonding with mechanical integration
2Object-affected harmful factors
If a central opening with a fixing piece is used instead of glue bonding, then glue usage is reduced, but the number of parts increases and manufacturing process complexity remains
Solution Approach 1:
Multiple functional elements (frame, strut, flange) are merged into a single integrated component, reducing the total number of parts while eliminating glue usage entirely through mechanical integration via the strut passing through aligned holes in the top plate, magnet, and yoke
3Productivity
If multiple separate components are used for the frame assembly, then flexibility in manufacturing is maintained, but the number of parts increases and production efficiency decreases
Solution Approach 1:
The frame, strut, and flange are combined into a single integrated component formed by injection molding, reducing the number of parts and assembly steps while improving manufacturing efficiency through a streamlined production process
Data Source
AI summary
The present disclosure relates to a loudspeaker, which has an cover, a diaphragm, a voice coil and a magnetic circuit system, wherein the magnetic circuit system includes: a top plate having a first hole, a magnet having a second hole, a yoke having a third hole, wherein the top plate, the magnet and the yoke are arranged in sequence and the first hole, the second hole and the third hole are aligned, a frame, wherein the frame surrounds the yoke in contact and fixes the yoke, and the frame has a strut and a flange connected to the strut, wherein the strut passes through the aligned first hole, second hole and third hole, and the flange is attached to the top plate, wherein the frame, the strut and the flange are integrated.