Title:
DIAPHRAGM AND RECEIVER
Document Type and Number:
WIPO Patent Application WO/2019/184152
Kind Code:
A1
Abstract:
The present application relates to the technical field of receivers, and provides a diaphragm and a receiver. The diaphragm comprises: a vibration sheet, a main portion of the vibration sheet protruding toward the top surface of the vibration sheet to form a first protrusion; a film, the top surface of the film covering the bottom surface of the vibration sheet, and the film comprising a second protrusion formed along the outer contour of the vibration sheet and toward the top surface of the vibration sheet; a support frame, the support frame being attached to the bottom surface of the film and comprising an annular frame body and bending portions extending from the edge of the frame body toward the side away from the film, wherein the number of the bending portions is two or more, and the bending portions are respectively disposed on different sides of the frame body. According to the present application, the process for diaphragms is simple, the production cycle is short, the costs are low, and the receiver housing positioning precision is high.
Inventors:
CHEN BIN (CN)
Application Number:
PCT/CN2018/096477
Publication Date:
October 03, 2019
Filing Date:
July 20, 2018
Export Citation:
Assignee:
SHENZHEN BELLSING ACOUSTIC TECH CO LTD (CN)
International Classes:
H04R11/04
Foreign References:
| CN108289273A | 2018-07-17 | |||
| CN206402435U | 2017-08-11 | |||
| CN204131711U | 2015-01-28 | |||
| CN205584481U | 2016-09-14 | |||
| CN205430598U | 2016-08-03 | |||
| JP2013145994A | 2013-07-25 |
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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