Speaker Vibration Assembly Through Hole Adhesion
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Solution Overview
Problem
The existing manufacturing process for micro moving coil speakers is inefficient due to the repeated application of adhesive and solidification, leading to adhesive overflow, which can cause structural failures and affect sound quality.
Innovation Solution
A speaker vibration assembly with a diaphragm featuring through holes for adhering, allowing the voice coil and reinforcement part to be securely attached with a single application of adhesive, preventing overflow and enhancing structural stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is applied twice (once for reinforcement part, once for voice coil), then adhesion reliability is improved, but manufacturing efficiency deteriorates and adhesive overflow risk increases
Solution Approach 1:
The patent merges the two separate adhesive application operations into a single operation by applying adhesive to the diaphragm surface before stacking both the reinforcement part and voice coil. This combining of operations maintains adhesion reliability while eliminating the inefficiency of repeated application and solidification cycles.
Solution Approach 2:
The adhesive is applied in advance to the diaphragm surface before the stacking operation. This preliminary action allows the adhesive to be ready for both components simultaneously, enabling a single application to secure both the reinforcement part and voice coil, thereby improving manufacturing efficiency without compromising bond strength.
2Strength
If adhesive is applied in volume to ensure adequate bonding, then adhesion strength is improved, but adhesive overflow increases causing structural failures
Solution Approach 1:
The patent applies adhesive locally to specific regions of the diaphragm surface where bonding is required, rather than applying it uniformly across the entire surface. This localized application ensures adequate adhesion strength at the bonding interfaces while preventing overflow into areas where adhesive is harmful, such as the corrugated rim and voice coil sides.
Solution Approach 2:
The patent converts the potential harm of adhesive overflow into a benefit by using the overflowed adhesive as additional bonding material that fills gaps and enhances adhesion between the stacked components. The adhesive that would otherwise be waste is utilized to improve the bonding reliability.
3Reliability
If adhesive is applied to entire surface for complete coverage, then adhesion coverage is improved, but manufacturing complexity and time increase
Solution Approach 1:
The patent segments the adhesive application process into discrete, localized regions rather than requiring complete surface coverage. Adhesive is applied only to specific areas where bonding is needed, which simplifies the manufacturing process while ensuring adequate adhesion coverage at the critical bonding interfaces between the diaphragm, reinforcement part, and voice coil.
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
This approach simplifies the assembly process, prevents adhesive overflow, and ensures reliable adhesion, improving the structural stability and sound quality of the speaker by containing the adhesive within the through holes.
Implementation Method 1
a vibration assembly, comprising a voice coil, a reinforcement part and a diaphragm, wherein the voice coil and the reinforcement part are respectively pasted on two surfaces of the central part
Data Source
AI summary
A speaker vibration assembly is provided, comprising: a voice coil, a reinforcement part and a diaphragm, wherein the diaphragm is provided with a central part. The voice coil and the reinforcement part are respectively pasted on two surfaces of the central part, and the central part is provided with a through hole for adhering configured to accommodate an adhesive applied to the surfaces of the diaphragm. In addition, an assembling method of a speaker vibration assembly is provided.