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Electroacoustic device

A technology of electro-acoustic devices and acoustic chambers, applied in the direction of frequency/direction characteristic devices, etc., to achieve good low-frequency sound performance

Inactive Publication Date: 2014-01-01
AAC TECH NANJING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current miniaturization of mobile devices and other products limits the specifications of electro-acoustic devices, so it is difficult to improve the acoustic effect of electro-acoustic devices simply by expanding the acoustic cavity

Method used

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  • Electroacoustic device

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 As shown, an electro-acoustic device 10 includes a housing 1 and a sound emitting unit 2 housed and fixed in the housing 1 .

[0016] The shell is made of Low-K material (Low dielectric, low dielectric coefficient material). In this embodiment, the Low-K material is cage-type silsesquioxane (Polyhedral oligomeric silsesquioxane, POSS) combined with resin. The resin material may be common resin materials such as epoxy resin, polyimide resin, and polyurethane. The POSS material is a new type of organic / inorganic hybrid material, with a cage surrounded by Si-O bonds in the molecule, and the molecular size is 1-3nm; POSS is a general term for a class of molecules, composed of The number of silicon atoms can be divided into cage-type silsesquioxanes such as octamer, decamer, dodecamer, and tetradecane, which have a nanopore structu...

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Abstract

The invention provides an electroacoustic device which comprises a shell and a sound production unit. A containing space is formed in the shell, the sound production unit is contained and fixed in the shell, and the shell is made of materials with low dielectric coefficients. Compared with the related technology, the electroacoustic device is good in low frequency sound effect performance.

Description

【Technical field】 [0001] The invention relates to an electroacoustic device, in particular to an electroacoustic device used in portable electronic products. 【Background technique】 [0002] In the process of rapid development of portable devices such as mobile phones, people's requirements for the functionality of products are getting stronger and stronger. As a result, the development of electroacoustic devices is also accelerating accordingly. [0003] The electro-acoustic device of the related art includes a housing with a housing space and a sounding unit placed in the housing space. In order to improve the acoustic effect of the electro-acoustic device, an acoustic cavity is usually provided in the housing, and the acoustic cavity can be effectively enlarged by enlarging the acoustic cavity. improve low-frequency performance. However, the current miniaturization of mobile devices and other products limits the specifications of electro-acoustic devices. Therefore, it is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/22
Inventor 王和志徐斌
Owner AAC TECH NANJING