US 11,910,152 B2
Earphone
Ching-Ming Hung, New Taipei (TW); Sheng-Hsiung Tsai, New Taipei (TW); and Pei-Shuang Huang, New Taipei (TW)
Assigned to Chiun Mai Communication Systems, Inc., New Taipei (TW)
Filed by Chiun Mai Communication Systems, Inc., New Taipei (TW)
Filed on Nov. 23, 2021, as Appl. No. 17/533,322.
Claims priority of application No. 202011340860.1 (CN), filed on Nov. 25, 2020.
Prior Publication US 2022/0167078 A1, May 26, 2022
Int. Cl. H04R 25/00 (2006.01); H04R 1/10 (2006.01)
CPC H04R 1/1083 (2013.01) [H04R 1/1016 (2013.01); H04R 1/1041 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An earphone comprising:
a housing;
a speaker arranged in the housing;
an air path, at least one part of the air path being defined in the housing;
an inflatable earplug communicating with the air path and detachably attached to the housing;
a control assembly arranged outside of the housing and configured to inflate and deflate the inflatable earplug through the air path;
an engaging piece, the engaging piece connected to a connection of the inflatable earplug and the air path; and
two seal pieces, the two seal pieces arranged on opposite sides of the engaging piece.