Invention Grant
- Patent Title: Speaker device
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Application No.: US15567943Application Date: 2015-11-16
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Publication No.: US10237661B2Publication Date: 2019-03-19
- Inventor: Xiaodong Cai , Cheng Zhang
- Applicant: GOERTEK INC.
- Applicant Address: CN Weifang, Shandong
- Assignee: GOERTEK, INC.
- Current Assignee: GOERTEK, INC.
- Current Assignee Address: CN Weifang, Shandong
- Agency: Holzer Patel Drennan
- Priority: CN201510194549 20150422
- International Application: PCT/CN2015/094671 WO 20151116
- International Announcement: WO2016/169254 WO 20161027
- Main IPC: H04R9/06
- IPC: H04R9/06 ; H04R7/12 ; H04R9/02 ; H04R9/04 ; H04R17/00 ; H04R23/02 ; H04R31/00

Abstract:
A speaker device comprises a vibration system, a magnetic circuit system, and an auxiliary system for accommodating and fixing the magnetic circuit system and the vibration system. The vibration system comprises a diaphragm, a centering disk and a voice coil which are joined together. The centering disk comprises a first fixing portion, a second fixing portion provided within the first fixing portion, and a connecting arm connecting the first fixing portion and the second fixing portion. A central position of the second fixing portion is provided with a piezoelectric sheet, the centering disk is provided with a first pad corresponding to the piezoelectric sheet, and the piezoelectric sheet is electrically connected to the first pad. Since a signal emitted by the piezoelectric sheet is mixed with an audio signal emitted by the voice coil-diaphragm, the speaker device of the present invention has improved medium-high frequency effect and acoustic performance.
Public/Granted literature
- US20180109879A1 SPEAKER DEVICE Public/Granted day:2018-04-19
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