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1. CN212324311 - Microphone

Office
China
Application Number 202021264805.4
Application Date 30.06.2020
Publication Number 212324311
Publication Date 08.01.2021
Publication Kind U
IPC
H04R 1/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
08Mouthpieces; Attachments therefor
CPC
H04R 1/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
08Mouthpieces; Microphones;; Attachments therefor
Applicants AAC TECHNOLOGIES (SHENZHEN) CO., LTD.
瑞声声学科技(深圳)有限公司
Inventors HU HENGBIN
胡恒宾
ZENG PENG
曾鹏
Agents 深圳紫辰知识产权代理有限公司 44602
Title
(EN) Microphone
(ZH) 麦克风
Abstract
(EN) The utility model provides a microphone, which comprises a circuit board, a shell, an ASIC chip and an MEMS chip, wherein the shell is connected with the circuit board in a covering manner to form anaccommodating space, and the ASIC chip and the MEMS chip are accommodated in the accommodating space. The shell comprises at least two layers of metal shells which are arranged at intervals and shielding shells which are arranged between the two adjacent metal shells and are arranged at intervals with the metal shells. Compared with the prior art, the number and the thickness of the shielding layers of the microphone are increased on the basis of not obviously increasing the height and the size of the microphone, and the multilayer metal reflection interface and the inter-board filter capacitor are formed, so that the interference of electromagnetic wave radiation can be effectively shielded and filtered.
(ZH) 本实用新型提供了一种麦克风,其包括线路板、与所述线路板盖接形成收容空间的外壳以及收容于所述收容空间内的ASIC芯片和MEMS芯片,其特征在于,所述外壳包括间隔设置的至少两层金属壳及设于相邻两所述金属壳之间并与所述金属壳间隔设置的屏蔽壳。与相关技术相比,本实用新型的麦克风在不明显增加麦克风高度和体积的基础上增加屏蔽层的层数及厚度并形成多层金属反射界面及板间滤波电容,从而可以有效屏蔽和滤除电磁波辐射的干扰。
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