Speaker Box Laser Welding for Reliable Metal Housing Assembly
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Solution Overview
Problem
Existing metal-housing speakers lack reliable positioning and fastening structures, leading to loosening over time and compromised sound quality.
Innovation Solution
A speaker box design featuring a metal housing with at least two metal pieces welded and fixed to both the housing and the speaker's magnetic yoke, providing a secure and stable assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the speaker unit is fixed to the metal housing through support foam and then glued, then the speaker can be assembled, but the assembly becomes complicated and unreliable
Solution Approach 1:
The patent removes the support foam component from the assembly process entirely. Instead of using foam and glue, the speaker frame is directly welded to the metal housing through positioning structures, eliminating unnecessary components and simplifying the assembly process while improving reliability.
Solution Approach 2:
The positioning structure and fastening function are merged into a single integrated design. The positioning structures on the metal housing and speaker frame work together with welding to provide both positioning and secure fixation, eliminating the need for separate support foam and adhesive layers.
2Stability of the object's composition
If the speaker uses a metal housing without positioning and fastening structures, then the housing structure is simple, but the speaker unit loosens after long-term use
Solution Approach 1:
The metal housing is divided into sections with specific positioning structures (such as ribs or protrusions) that correspond to positioning features on the speaker frame. This segmentation allows for precise positioning and secure fastening without requiring a completely complex housing design.
Solution Approach 2:
The patent replaces mechanical fastening methods (such as screws or clips) with welding technology. The positioning structures guide the alignment, and welding provides permanent, reliable fixation, eliminating the risk of loosening while maintaining structural integrity.
3Reliability
If the speaker unit is fixed using support foam and glue, then assembly can proceed, but the sound quality deteriorates over time
Solution Approach 1:
The support foam is completely removed from the manufacturing process. The direct welding connection between the speaker frame and metal housing eliminates the foam layer that could degrade over time, ensuring stable sound quality transmission while maintaining manufacturing efficiency through automated welding processes.
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 enhances the reliability and stability of the speaker box, eliminating the need for support foam and optimizing manufacturing processes while improving sound quality and durability.
Implementation Method 1
The at least two metal pieces are welded and fixed to the magnetic yoke and the metal housing
Data Source
AI summary
A speaker box includes a metal housing defining an accommodating cavity, a speaker received in the accommodating cavity, and at least two metal pieces arranged between the metal housing and the speaker. The speaker includes a vibrating diaphragm. The speaker includes a frame and a magnetic yoke fixed to the frame. The at least two metal pieces are welded and fixed to the magnetic yoke and the metal housing. Compared with the prior art, by welding the at least two metal pieces with the speaker through laser, reliability of the speaker box is improved when the speaker box suddenly drops, a manufacturing process is optimized, and costs are saved.