Title:
DIAPHRAGM AND LOUDSPEAKER UNIT FOR LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2019/041507
Kind Code:
A1
Abstract:
A diaphragm and a loudspeaker unit for a loudspeaker are provided. The diaphragm comprises a central portion, a bent surround portion surrounding the central portion, and a connecting portion surrounding the bent surround portion. The bent surround portion comprises a straight segment and a bent segment. A reverse-curved surface portion is disposed between the central portion and the straight segment of the bent surround portion and/or between the connecting portion and the straight segment of the bent surround portion. The reverse-curved surface portion and the bent surround portion protrude in opposite directions, and a width of the reverse-curved surface portion is less than a width of the bent surround portion. A technical issue to be solved by the invention relates to the small width of the bent segment in existing diaphragms that makes performance adjustment difficult.
Inventors:
WANG JIANJIAN (CN)
LI DONG (CN)
LI JUN (CN)
LI DONG (CN)
LI JUN (CN)
Application Number:
PCT/CN2017/108381
Publication Date:
March 07, 2019
Filing Date:
October 30, 2017
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/06
Foreign References:
| CN205249470U | 2016-05-18 | |||
| CN204697281U | 2015-10-07 | |||
| CN105979431A | 2016-09-28 |
Attorney, Agent or Firm:
BEYOND TALENT PATENT AGENT FIRM (CN)
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