MEMS sound production apparatus and electronic device

A sounding device and a combined technology, applied in the field of sounding devices and electronic equipment, can solve the problems of low degree of automation, complex structure of the sounding device, and large volume of the sounding device.

Inactive Publication Date: 2017-02-22
WEIFANG GOERTEK MICROELECTRONICS CO LTD
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  • 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

Method used

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  • MEMS sound production apparatus and electronic device
  • MEMS sound production apparatus and electronic device

Examples

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Embodiment Construction

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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 an MEMS sound production apparatus and an electronic device. The MEMS sound production apparatus comprises a substrate provided with a hollow inner cavity and a vibrating diaphragm formed above the substrate in a deposition manner, the vibrating diaphragm comprises at least one magnetized magnetic material layer, and the vibrating diaphragm further comprises a first coil arranged to align to the magnetic material layer; and the first coil is configured to provide a driving force whose direction is vertical to the vibrating diaphragm for the magnetic material layer. According to the sound production apparatus disclosed by the invention, the first coil and the magnetic material layer are correspondingly arranged together, when alternating current is input to the first coil, the magnetic materials of the magnetic material layer penetrates through the coil, the magnetic material layer generates vibration vertical to the direction of the vibrating diaphragm under the counterforce of an Ampere force of the coil, and thus the vibration sound production of the vibrating diaphragm is realized. This sound production apparatus disclosed by the invention can be used in telephone receivers or loudspeakers, and breaks through the installation structures of traditional coils and magnets, so that the volume of the sound production apparatus is smaller, and the sound production apparatus can be manufactured by the MEMS process.

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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IPC IPC(8): H04R19/04
CPCH04R19/04H04R2201/003
Inventor 蔡孟锦李江龙马路聪周宗燐
Owner WEIFANG GOERTEK MICROELECTRONICS CO LTD
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