Sound production apparatus, module and electronic device

A technology of a sounding device and a module, applied in the field of electroacoustics, can solve the problems of affecting the maximum sound output of the moving coil type micro sounding device, reducing the physical vibration space, etc.

Pending Publication Date: 2017-10-20
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will inevitably lead to further reduction of the physical vibration space of the product, which will eventually affect the maximum sound output of the dynamic micro-sounding device in the low frequency band

Method used

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  • Sound production apparatus, module and electronic device
  • Sound production apparatus, module and electronic device
  • Sound production apparatus, module and electronic device

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Embodiment Construction

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0033] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0034] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a sound production apparatus, a module and an electronic device. The sound production apparatus comprises: a polypropylene film, wherein a plurality of flat high-strength pores are formed in the polypropylene film, the pores are distributed in the polypropylene film in a honeycomb shape, and the polypropylene film is configured to perform charging polarization in a strong electric field environment to form permanent positive and negative charges in the pores; and metal electrode layers respectively arranged on two side faces of the polypropylene film, wherein the polypropylene film is configured to vibrate in a reciprocating manner on the thickness direction of the metal electrode layers when the metal electrode layers are connected to changing voltage signals. One problem to be solved in the invention is that the existing moving-coil type miniature sound production apparatus still requires a magnetic circuit system to serve as a driving resource, resulting in a relatively large volume.

Description

technical field [0001] The technical field of electroacoustics of the present invention, more specifically, the present invention relates to a sound generating device, a module and electronic equipment. Background technique [0002] Dynamic micro-sounding devices have been widely used in consumer electronics products. For example, speakers or receivers in electronic devices such as smart phones or tablet computers. [0003] The moving coil micro-sounding device includes a magnetic circuit system and a vibration system, and the vibration system includes a voice coil and a diaphragm fixed together. The magnetic circuit system as a driving force source can generate a magnetic gap. The voice coil with the signal is subjected to the Lorentz force to drive the diaphragm to vibrate together, thereby radiating sound waves. [0004] The technology of the dynamic micro-sounding device is mature, and it can obtain a warmer sound. However, it needs a magnetic circuit system as a dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/02H04R7/10H04R9/02H04R9/06
CPCH04R7/02H04R7/10H04R9/02H04R9/06H04R2499/11H04R2307/025
Inventor 邵明辉
Owner GOERTEK INC
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