公开(公告)号：US20220210574A1

公开(公告)日：2022-06-30

申请号：US17563715

申请日：2021-12-28

申请人： EM-TECH Co., Ltd.

发明人： Cheon Myeong Kim ,  Ji Hoon Kim ,  Jong Soo Yoon ,  Kil Dong Park ,  Gi Hun Song ,  Tae Hyun Park

IPC分类号： H04R9/06 ,  H04R31/00 ,  H04R7/04 ,  H04R9/02 ,  H04R9/04

摘要： Provided is a diaphragm for a high water pressure waterproof microspeaker. The diaphragm for a waterproof microspeaker includes an annular dome portion formed of an elastic membrane material and having a dome portion protruding upward or downward, an annular outer periphery portion attached to an outer periphery of the dome portion and injection-molded with a material having rigidity, an annular inner periphery portion attached to an inner periphery of the dome portion and injection-molded with a material having rigidity, and a center diaphragm attached to a center of the inner periphery portion, wherein the outer periphery portion and the inner periphery portion are attached to an edge portion by double-shot injection molding.