Title:
IN-EAR EARPHONE
Document Type and Number:
WIPO Patent Application WO/2014/179945
Kind Code:
A1
Abstract:
An in-ear earphone comprises an earphone housing and a loudspeaker unit (2) mounted in the earphone housing. The earphone housing forms an earphone front chamber (1.3) in the front of the loudspeaker unit (2). An air-outlet through hole (5) communicating with the earphone front chamber (1.3) is arranged on the earphone housing. When the in-ear earphone is plugged into an ear canal of a user, excess air in the ear canal is discharged outside from the earphone and the interior of the ear canal through the air-outlet through hole (5). By using a mode of arranging an air-outlet through hole (5) on an ear housing, part of air in an ear canal and an earphone chamber is discharged from the air-outlet through hole (5), and a membrane is protected from being deformed due to an air pressure, thereby eliminating the phenomenon of distortion of sound or muteness of the earphone. In addition, by adjusting a size of a small hole or sticking a damping material (6) on the small hole, a frequency response curve of the in-ear earphone, particularly the response of a low frequency, can be adjusted, thereby meeting diversified requirements of music enjoyment.
Inventors:
YUEN SHUNMING (CN)
Application Number:
PCT/CN2013/075311
Publication Date:
November 13, 2014
Filing Date:
May 08, 2013
Export Citation:
Assignee:
INNOVATION SOUND TECHNOLOGY CO LTD (CN)
International Classes:
H04R1/10
Domestic Patent References:
| WO2012042672A1 | 2012-04-05 |
Foreign References:
| CN203233522U | 2013-10-09 | |||
| CN202587329U | 2012-12-05 | |||
| CN102625991A | 2012-08-01 | |||
| CN202282851U | 2012-06-20 | |||
| JP2013021591A | 2013-01-31 |
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