公开(公告)号：EP2842349A1

公开(公告)日：2015-03-04

申请号：EP13781230.1

申请日：2013-04-26

申请人： Knowles Electronics, LLC

发明人： LOPRESTI, Janice ,  KEAREY, Steven Roy ,  NAYLOR, Felix Matthew ,  COLLINS, James

IPC分类号： H04R19/00 ,  H01L29/84

CPC分类号： H04R7/16 ,  H04R1/021 ,  H04R7/18 ,  H04R19/04

摘要： An apparatus includes a top assembly, a bottom assembly, and a diaphragm assembly. The bottom assembly is coupled to the top assembly to form an overall assembly. The diaphragm assembly includes a ring and a diaphragm flexible member that is attached to the ring. The ring forms an opening and at least one strengthening member is disposed at least partially across the opening. The at least one strengthening member is configured to provide strength and maintain a predetermined compliance of the diaphragm flexible member.