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Voice coil framework and loudspeaker

一种音圈骨架、音圈的技术，应用在扬声器领域，能够解决扬声器电声转换效率无法进一步提高、音圈骨架重量大等问题，达到优异机械强度、小密度、提高功率及音量的效果

Active Publication Date: 2010-12-29
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, if the existing voice coil bobbin wants to achieve a certain specific strength, it must have a relatively large thickness, which will lead to a large weight of the voice coil bobbin, making it impossible to further improve the electroacoustic conversion efficiency of the speaker.

Method used

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  • Voice coil framework and loudspeaker
  • Voice coil framework and loudspeaker
  • Voice coil framework and loudspeaker

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Embodiment Construction

[0020] The voice coil bobbin and the loudspeaker using the voice coil bobbin according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] see Figure 1 to Figure 2 , the first embodiment of the present invention provides a voice coil bobbin 10 . The voice coil bobbin 10 includes a carbon nanotube composite structure formed by a matrix 102 and a carbon nanotube structure 104 compounded in the matrix 102 . The voice coil bobbin 10 is a hollow tubular structure surrounded by the carbon nanotube composite structure.

[0022] The base body 102 is a hollow tubular structure. The material of the substrate 102 includes polymer, paper, metal, cloth and so on. Specifically, the material of the base body 102 may include polyimide, polyester, aluminum, glass fiber, or paper. Preferably, the base body 102 has a smaller weight and a higher specific strength. In this embodiment, the base 102 is polyimide. ...

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Abstract

The invention relates to a voice coil framework and a loudspeaker using the same. The voice coil framework has a hollow tubular structure encircled by a carbon nano tube composite structure.

Description

technical field [0001] The invention relates to a voice coil frame and a loudspeaker using the voice coil frame. Background technique [0002] A loudspeaker is an electroacoustic device that converts electrical signals into sound signals. Specifically, the loudspeaker can convert audio electric power signals within a certain range into audible sounds with less distortion and sufficient sound pressure level. According to the working principle of the speaker, the existing speakers can be divided into electrodynamic, piezoelectric and electrostatic speakers. Among them, the electrodynamic loudspeaker is the most widely used because of its simple structure, excellent sound quality and low cost. [0003] An electrodynamic loudspeaker generally includes a voice coil, a voice coil bobbin (Bobbin), a magnetic field system and a vibrating membrane. The voice coil is wound around one end of the voice coil frame. The voice coil skeleton is connected with the vibrating membrane. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/04C01B31/02H04R9/06
CPCH04R9/046
Inventor 刘亮王佳平
Owner TSINGHUA UNIV
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