Integrated Suspension Damper for Thin Loudspeaker
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Solution Overview
Problem
Conventional loudspeakers are limited in thickness due to the structure of the damper and suspension, which affects sound quality and leads to potential collisions between the voice coil and magnetic circuit, and the use of glue can cause aging and degradation over time.
Innovation Solution
A vibrating panel device comprising a base, a vibrating panel, and upper and lower suspensions, where the inner and outer edges of the suspensions are connected to the base and panel to form an integrated structure, replacing the conventional damper and allowing vertical up-and-down motion, and a manufacturing method involving insert molding to eliminate the need for glue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional damper structure is used to maintain voice coil position and provide damping, then the voice coil is properly constrained and damping is provided, but the thickness of the loudspeaker increases and limits application in thin electronic products
Solution Approach 1:
The patent merges the damper and suspension into a single integrated structure called a 'suspension-damper integrated structure'. The outer edge of the suspension is directly connected to the damper, eliminating the need for separate components and reducing overall thickness while maintaining both positioning and damping functions
Solution Approach 2:
The patent uses pre-formed suspension and damper components that are prepared in advance with specific geometric features (such as clamping surfaces and connection structures) that enable direct integration without requiring additional assembly steps or adhesive materials
2Ease of manufacture
If adhesive is used to connect damper and suspension components, then assembly is simplified, but aging and degradation occur over time affecting sound quality and reliability
Solution Approach 1:
The patent replaces the chemical bonding method (adhesive) with a mechanical connection system. The suspension and damper are connected through direct mechanical contact and geometric interlocking features, eliminating the need for adhesive materials that degrade over time
Solution Approach 2:
The suspension and damper components are pre-formed with specific geometric features (clamping surfaces, connection structures) that enable direct mechanical integration, eliminating the need for additional assembly materials and processes
3Adaptability or versatility
If conventional separate damper and suspension structures are used, then each component can be optimized independently, but the overall device thickness increases and structural complexity increases
Solution Approach 1:
The patent combines the damper and suspension into a single integrated structure where the outer edge of the suspension is directly connected to the damper. This integration maintains the functional advantages of separate components while reducing overall thickness and structural complexity
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 vibrating panel device enables balanced and vertical up-and-down motion, improving sound quality and product reliability by eliminating the thickness limitations and degradation issues of conventional designs.
Implementation Method 1
an upper suspension and a lower suspension in opposite directions which are respectively connected and fixed with upper and lower surfaces of a vibrating panel and a base
Data Source
AI summary
A vibrating panel device for an electromagnetic vibrator includes at least one vibrating panel device. The vibrating panel module includes a base, a vibrating panel and an upper suspension, wherein an inner edge and an outer edge of the upper suspension are respectively connected with the base and the vibrating panel, and form an integrated whole body. Furthermore, two vibrating panel modules are fixedly connected in opposite directions to form the vibrating panel device. When the voice coil drives the vibrating panel to actuate, shaking of the vibrating panels is offset due to interactions between a pair of the suspensions and a pair of the vibrating panels. As a result, the voice coil drives the vibrating panel to process vertical up-and-down stroke.