Title:
DIAPHRAGM AND MICRO SPEAKER PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2018/233409
Kind Code:
A1
Abstract:
The present invention relates to the technical field of electroacoustic products. Disclosed are a diaphragm and a micro speaker provided with the same. The diaphragm comprises a central portion, a ring portion, and a fixing portion which are sequentially connected from inside to outside. The ring portion includes patterns therein. In a frontal projection plane of the diaphragm, the patterns include multiple crescent-shaped patterns, and each of the crescent-shaped patterns extends in a direction from an inner edge of the ring portion to an outer edge of the ring portion. In the diaphragm and the micro speaker provided with the same, the diaphragm oscillates stably, has high compliance and fatigue resistance, and is less likely to form creases thereon. Accordingly, the micro speaker has high sensitivity, less distortion and a large reliability margin.
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Inventors:
MA WENTAO (CN)
SUN YAJING (CN)
SUN YAJING (CN)
Application Number:
PCT/CN2018/086885
Publication Date:
December 27, 2018
Filing Date:
May 15, 2018
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R7/14; H04R9/06
Foreign References:
| CN207150812U | 2018-03-27 | |||
| CN204539452U | 2015-08-05 | |||
| CN205320269U | 2016-06-15 | |||
| CN201869353U | 2011-06-15 | |||
| JP2008245120A | 2008-10-09 |
Attorney, Agent or Firm:
BEYOND TALENT PATENT AGENT FIRM (CN)
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