发明申请
- 专利标题: Condenser microphone unit
- 专利标题(中): 冷凝器麦克风单元
-
申请号: US12656250申请日: 2010-01-22
-
公开(公告)号: US20100189301A1公开(公告)日: 2010-07-29
- 发明人: Hiroshi Akino , Shioto Okita , Noriko Matsui , Satoshi Yoshino
- 申请人: Hiroshi Akino , Shioto Okita , Noriko Matsui , Satoshi Yoshino
- 申请人地址: JP Machida-shi
- 专利权人: KABUSHIKI KAISHA AUDIO-TECHNICA
- 当前专利权人: KABUSHIKI KAISHA AUDIO-TECHNICA
- 当前专利权人地址: JP Machida-shi
- 优先权: JP2009-017843 20090129
- 主分类号: H04R19/04
- IPC分类号: H04R19/04
摘要:
There is provided a condenser microphone unit in which the shield of a shielding member that covers a front acoustic terminal from the inside of a unit case is assured to prevent noise caused by electromagnetic waves radiated especially from a cellular phone from being generated. In a condenser microphone unit including a metallic cylindrical unit case 10 having a front acoustic terminal 11 on one end side; an electrostatic acousto-electric converter 20 housed in the unit case 10; and a shielding member 30 disposed between the acousto-electric converter 20 and the front acoustic terminal 11 to cover the front acoustic terminal 11 from the inside of the unit case 10, as the shielding member 30, there is used a shielding plate 32 consisting of a metallic porous plate integrally having a plurality of locking pieces 33, which dig into the inner wall surface of the unit case 10 on account of elastic deformation, in the peripheral edge part thereof.
公开/授权文献
- US08243975B2 Condenser microphone unit 公开/授权日:2012-08-14