Integrated Speaker Damping Ring for Stable Voice Coil Vibration
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Solution Overview
Problem
Existing speakers face issues with poor positioning of the annular damping component, leading to instability in the voice coil's up and down vibration and an increased overall height due to the damping ring being located away from the paper cone.
Innovation Solution
The damping ring is integrally connected to the paper cone, with the voice coil positioned within the space defined by the paper cone, damping ring, and magnetic assembly, reducing the overall height and improving the stability of the voice coil's vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the damping ring is located on the outside of the drum annulus portion away from the paper cone, then the sound membrane can be mounted between the body and the cone frame, but the stability of the voice coil vibration deteriorates and the overall height increases
Solution Approach 1:
The damping ring is integrated with the paper cone to form an integral structure, eliminating the need for separate attachment of the damping ring to the drum annulus portion. This merging of components ensures the damping ring maintains a fixed position relative to the paper cone, providing stable voice coil vibration while preserving the mounting function between the body and cone frame.
2Ease of manufacture
If the damping ring is located on the outside of the drum annulus portion away from the paper cone, then the sound membrane can be mounted between the body and the cone frame, but the overall height of the speaker increases
Solution Approach 1:
The damping ring is integrated with the paper cone to form an integral structure, allowing the damping function to be achieved within the existing speaker height constraints. This eliminates the need for additional space that would be required if the damping ring were separately attached to the drum annulus portion, thereby reducing the overall speaker height while maintaining the mounting capability.
3Length of stationary object
If the damping ring is integrated to the paper cone, then the overall height is reduced and vibration stability is improved, but the positioning precision during assembly may deteriorate
Solution Approach 1:
The damping ring and paper cone are formed as an integral structure through molding or other manufacturing processes, ensuring precise relative positioning is built into the component itself. This eliminates the need for separate assembly and positioning of the damping ring, thereby maintaining manufacturing precision while achieving the height reduction and vibration stability benefits.
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 design enhances the stability of the voice coil's linear vibration, prevents jittering and deflection, and reduces the speaker's overall height while potentially lowering component and processing costs.
Implementation Method 1
A speaker produces sound by driving the sound membrane to vibrate through the coil under the action of the magnetic field
Implementation Method 2
The damper has an inner edge and an outer edge. The outer edge abuts against the second side edge of the damping ring
Data Source
AI summary
A speaker, including a paper cone, a damping ring, a damper, a magnetic assembly, and a voice coil, is provided. The damping ring is integrally connected to the paper cone. The damping ring has a first side edge and a second side edge opposite to each other, and the first side edge is connected to the paper cone. The damper has an inner edge and an outer edge. The outer edge abuts against the second side edge of the damping ring. The magnetic assembly abuts against the inner edge of the damper. The paper cone, the damping ring, the damper, and the magnetic assembly define a space. The voice coil is disposed in the space and abuts against the paper cone.