Vibrating Panel Device With Integrated Suspension
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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, allowing for vertical up-and-down motion without the need for glue, replacing the conventional damper and enabling balanced operation as an auxiliary vibrator.
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 further thinning
Solution Approach 1:
The patent combines the damper and suspension into a single integrated structure called an upper suspension that performs both functions simultaneously. The upper suspension includes a damper portion that constrains the voice coil laterally and a suspension portion that supports the voice coil assembly, eliminating the need for separate damper and suspension components and reducing overall thickness.
Solution Approach 2:
The upper suspension is designed as a multi-functional component that simultaneously provides damping, suspension, and voice coil positioning functions. This universal component replaces multiple traditional parts (damper, suspension, and positioning structures) with a single element that performs all necessary functions, thereby reducing thickness while maintaining reliability.
2Strength
If glue is used to fix the damper and suspension to the base frame, then the components are securely mounted, but aging and degumming occur over time causing sound quality degradation or damage
Solution Approach 1:
The patent replaces the chemical bonding method (glue) with a mechanical fastening system. The upper suspension is fixed to the base frame using a fastener that passes through the upper suspension and engages with the base frame, providing secure mechanical attachment that does not degrade over time like adhesive bonds.
Solution Approach 2:
The invention changes the mounting method from chemical adhesion to mechanical fastening. This parameter change in the attachment mechanism eliminates the aging and degumming issues associated with glue while maintaining strong component mounting, thereby improving long-term reliability and sound quality stability.
3Stability of the object's composition
If the suspension and damper are fixed on the base frame in conventional configurations, then the structure is stable, but the voice coil may collide with the magnetic circuit system during large amplitude movements
Solution Approach 1:
The upper suspension is designed with asymmetric geometry where the damper portion extends laterally to constrain the voice coil while the suspension portion provides vertical support. This asymmetric configuration creates adequate clearance between the voice coil and magnetic circuit system during large amplitude movements, preventing collisions while maintaining structural stability.
Solution Approach 2:
The upper suspension is positioned and configured in advance to prevent voice coil collision before it can occur. The damper portion of the upper suspension constrains the voice coil laterally and positions it centrally in the magnetic gap, creating preliminary anti-action that prevents the voice coil from contacting the magnetic circuit system during operation.
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 improves product quality and sound quality by allowing for thinner designs and balanced motion, reducing noise and the risk of collisions, while eliminating the need for glue, thus enhancing product reliability.
Implementation Method 1
an inner edge and an outer edge of the upper suspension are respectively connected with the base and the vibrating panel to form an integrated whole body
Implementation Method 2
electromagnetic vibrator, also called loudspeaker and commonly known as horn speaker, is a kind of electro-acoustic device converting electrical energy into acoustic energy
Implementation Method 3
when the voice coil drives the vibrating panel to actuate, shaking of the vibrating panels while actuating is offset due to interactions between a pair of the suspensions and a pair of the vibrating panels
Data Source
AI summary
The present invention includes a vibrating panel device for an electromagnetic vibrator, which 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. Further, two vibrating panel modules are fixedly connected in opposite directions to form the vibrating panel device. By unique structures of 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, in such a manner that the voice coil drives the vibrating panel to process vertical up-and-down stroke, so as to replace a conventional damper.