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MEMS sound generating device and electronic equipment

A technology of a sounding device and a conductive layer, which is applied in the field of electronic equipment and sounding devices, and can solve problems such as complex structure of the sounding device, large volume of the sounding device, and inability to meet the needs of modern development.

Inactive Publication Date: 2017-05-10
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The structure of this kind of sounding device is relatively complicated, which makes the volume of the sounding device larger, and most of them are assembled by manual assembly line, the degree of automation is not high, and it is far from meeting the needs of modern development.

Method used

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  • MEMS sound generating device and electronic equipment
  • MEMS sound generating device and electronic equipment

Examples

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Embodiment Construction

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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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PUM

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Abstract

The invention discloses an MEMS sound generating device and electronic equipment. A back pole and a vibrating diaphragm are arranged on a substrate through the mode of deposition and etching, and the back pole and the vibrating diaphragm are supported through an insulating layer; a back cavity arranged to be corresponding to the back pole and the vibrating diaphragm is arranged on the substrate; and the back pole and the vibrating diaphragm are configured in a way that an AC electric signal is applied to the back pole and the vibrating diaphragm so as to form electric potential difference between the back pole and the vibrating diaphragm. The mode of the vibrating diaphragm is used as one pole plate of a plate capacitor so that the vibrating diaphragm is enabled to move to the direction to or away from the back pole under the effect of the electric potential difference, and thus vibration sound generation of the vibrating diaphragm can be realized. The sound generating device can be applied to various sets of electronic equipment. The invention also provides the electronic equipment comprising the sound generating device.

Description

technical field [0001] The invention relates to the field of transducers, more precisely, the invention relates to a sound generating device; the invention also relates to an electronic device. Background technique [0002] The sound generating device is an important acoustic component in electronic equipment. As a transducer device that converts electrical signals into acoustic signals, it has been widely used in electronic products such as mobile phones and notebook computers. The existing loudspeaker module includes a casing, a vibration system and a magnetic circuit system arranged in the casing, wherein the vibration system includes a diaphragm and a voice coil arranged on the diaphragm for driving the diaphragm to sound, and the magnetic circuit system includes a magnet , Hua Si, etc. One end of the coil is connected to the diaphragm, and the other end extends into the magnetic gap of the magnetic circuit system. [0003] The structure of this sounding device is comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R19/02H04R7/14H04R7/12H04R1/20H04R31/00
CPCH04R19/02H04R1/20H04R7/122H04R7/14H04R31/00H04R31/003H04R2201/003
Inventor 李江龙马璐聪蔡孟锦
Owner GOERTEK INC
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