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Magnesium base composite material and preparation method thereof, and application thereof in sounding device

A composite material and sound-generating device technology, which is applied in the field of magnesium-based composite materials and its preparation, can solve the problems of long reverberation of earphone sound, poor sound quality of earphone, and large response of shell to sound quality, etc.

Active Publication Date: 2010-10-06
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sound-generating devices, such as earphones and stereos, are emerging in an endless stream. However, in the prior art, most of the improvements to the sound quality of sound-generating devices focus on the improvement of their built-in speakers, while the improvement of the shell is less
But the response of the shell to the sound quality is also great, which directly affects the effect of the speaker
[0003] Taking the earphone as an example, the shell of the earphone mostly affects the sound effect of the speaker and the whole earphone due to resonance and reverberation. The shell of the earphone in the prior art is made of plastic or resin, which causes the reverberation of the sound of the earphone to be relatively long, and the sound of the shell is relatively long. The resonance is strong, and the sound effect is not clear enough, which makes the earphones have the problem of poor sound quality
In addition, plastic or resin casings have poor durability, are easily deformed, and are not light enough

Method used

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  • Magnesium base composite material and preparation method thereof, and application thereof in sounding device
  • Magnesium base composite material and preparation method thereof, and application thereof in sounding device
  • Magnesium base composite material and preparation method thereof, and application thereof in sounding device

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Embodiment Construction

[0020] The sound generating device of the embodiment of the technical solution will be described in detail below with reference to the accompanying drawings.

[0021] The technical solution provides a sound generating device, which includes a hollow casing and a loudspeaker arranged inside the casing. The sound generating device may be an earphone, stereo, loudspeaker, mobile phone, notebook computer or television.

[0022] see figure 1 , the embodiment of the technical solution takes the earphone 10 as an example, and the earphone 10 includes a hollow earphone housing and a speaker 14 disposed inside the housing. The earphone 10 can be a head-mounted, ear-hook, in-ear or earplug type.

[0023] The speaker 14 can be of electric type, capacitive type, electrostatic type, pneumatic type and piezoelectric type. The speaker 14 is used to convert electrical signals into audio signals. Specifically, the speaker 14 can convert audio electric power signals within a certain range i...

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Abstract

The invention relates to a magnesium base composite material, comprising magnesium base metal and nano reinforcing phase dispersed in the magnesium base metal. The weight percentage content of the nano reinforcing phase in the magnesium base metal is from 0.01% to 2%. The magnesium base composite material is used for manufacturing the shell of a sounding device. The invention also relates to a preparation method of the magnesium base composite material.

Description

technical field [0001] The invention relates to a magnesium-based composite material, a preparation method thereof, and an application thereof in a sound generating device. Background technique [0002] With the continuous development of new technologies and materials, people's requirements for audio-visual quality are also getting higher and higher. Sound-generating devices, such as earphones and stereos, emerge in an endless stream. However, in the prior art, the improvement of the sound quality of sound-generating devices mostly focuses on the improvement of its built-in loudspeaker, while the improvement of the housing is less. But the response of the shell to the sound quality is also very large, which directly affects the effect of the speaker. [0003] Taking the earphone as an example, the shell of the earphone mostly affects the sound effect of the speaker and the whole earphone due to resonance and reverberation. The shell of the earphone in the prior art is made ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22C1/02
CPCB22D27/20C22C1/1036B22D27/08B22D1/00
Inventor 李文珍陈皇妙
Owner TSINGHUA UNIV
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