Invention Grant
- Patent Title: Inner magnet type microspeaker
- Patent Title (中): 内磁式扬声器
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Application No.: US14184796Application Date: 2014-02-20
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Publication No.: US09185494B2Publication Date: 2015-11-10
- Inventor: Kyu Dong Choi , Jong Soo Yoon
- Applicant: EM-TECH Co., Ltd.
- Applicant Address: KR Busan
- Assignee: EM-TECH Co., Ltd.
- Current Assignee: EM-TECH Co., Ltd.
- Current Assignee Address: KR Busan
- Agency: Murphy, Bilak & Homiller, PLLC
- Priority: KR10-2013-0019092 20130222
- Main IPC: H04R9/04
- IPC: H04R9/04 ; H04R7/12

Abstract:
An inner magnet type microspeaker including a suspension is provided which can maximize the size of a magnet. The inner magnet type microspeaker includes: a frame; a yoke installed inside of the frame and including a bottom surface and sidewalls bent upward from the bottom surface; a magnet bonded to an inside of the yoke; a voice coil located in a gap portion between the sidewalls of the yoke and the magnet; a diaphragm that vibrates by the voice coil; and a suspension where the voice coil is attached, and which guides vibrations of the diaphragm and the voice coil and includes a ring-shaped inner peripheral portion and an outer peripheral portion that surrounds the inner peripheral portion, spaced a predetermined distance apart from the inner peripheral portion, with one end and the other end being connected to the inner peripheral portion.
Public/Granted literature
- US20140241566A1 Inner Ring Magnet Type Microspeaker Public/Granted day:2014-08-28
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