Speaker Suspension Reinforcement Assembly
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Solution Overview
Problem
Micro speaker assembly deviations and uneven material processes lead to vibration-induced tilting and potential destruction, compromising acoustic performance.
Innovation Solution
A speaker design featuring a vibration diaphragm with a reinforcement assembly, including a suspension system with short and long axle parts, corner parts, and reinforcement components made of fiber material, which provides structural strength and balances vibration to prevent rocking motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If assembly deviation or uneven material process occurs during micro speaker production, then manufacturing cost is reduced, but the speaker sways and tilts during vibration causing acoustic performance degradation
Solution Approach 1:
The reinforcement assembly is pre-installed on the vibration diaphragm to counteract the swaying and tilting that will occur during vibration. This preliminary anti-action prevents the harmful rocking motion before it can degrade acoustic performance, resolving the contradiction between ease of manufacture and reliability.
Solution Approach 2:
The reinforcement assembly uses composite material structures (combining reinforcement components with the vibration diaphragm) to create a unified system that maintains acoustic performance while being cost-effective to manufacture. The composite structure provides the necessary reinforcement without significantly increasing manufacturing complexity.
2Reliability
If the vibration diaphragm is made lighter to improve acoustic performance, then acoustic performance is improved, but the suspension system becomes weaker and more prone to rocking motion
Solution Approach 1:
The suspension system is segmented into multiple functional components: the vibration diaphragm (lightweight for acoustic performance), the reinforcement assembly (providing structural strength), and the suspension part (connecting components). This segmentation allows each part to be optimized for its specific function, resolving the contradiction between lightweight design and structural strength.
Solution Approach 2:
The reinforcement assembly acts as an intermediary structure between the lightweight vibration diaphragm and the suspension system. It mediates the contradiction by providing the necessary structural strength to the suspension system while allowing the vibration diaphragm to remain lightweight for optimal acoustic performance.
3Strength
If the suspension part is made more rigid to prevent rocking motion, then structural strength is improved, but the vibration diaphragm's ability to vibrate freely is restricted
Solution Approach 1:
The reinforcement assembly applies local quality by providing targeted reinforcement only where needed (at the suspension part and corner parts) rather than making the entire vibration diaphragm rigid. This localized reinforcement prevents rocking motion while preserving the vibration freedom of the diaphragm's main body, resolving the contradiction between strength and vibration freedom.
Data Source
AI summary
The present invention provides a speaker, including a frame with a containment space, a magnetic circuit system and a vibration system. The vibration system includes a vibration diaphragm. The diaphragm includes a dome and a suspension. The suspension includes a first fixed part, a suspension part, and a second fixed part extending away from the first fixed part from the outer edge of suspension part. The suspension part includes two short axle parts, two long axle parts, and a corner part connecting adjacent short axle parts and long axle parts. The vibration diaphragm includes a reinforcement assembly connected to the corner part and connected to the first fixed part and the second fixed part at both ends. By virtue of reinforcement assembly at the corner part of the suspension, the speaker can obtain better acoustic performance.