公开(公告)号：US20170339493A1

公开(公告)日：2017-11-23

申请号：US15671929

申请日：2017-08-08

申请人： Chao Jiang ,  Jianbin Yang ,  Zhi Li ,  Qijin Jiao

发明人： Chao Jiang ,  Jianbin Yang ,  Zhi Li ,  Qijin Jiao

IPC分类号： H04R9/06 ,  H04R9/04 ,  H04R7/12 ,  H04R7/18

摘要： A tablet woofer and an electronic device using same. The woofer comprises a vibrating diaphragm, at least four mutually independent drive units (5), and a housing (3). The vibrating diaphragm is a rectangle shape, and comprises a rigid arc portion (1) at the central position and a spiral curve portion (2) at the periphery; the drive unit (5) comprises a voice coil unit and a corresponding magnetic circuit unit, and four angles of the arc portion (1) of the vibrating diaphragm are each combined with one voice coil unit; the housing (3) is provided with mounting holes (4) for accommodating and mounting the drive units (5), and sound holes penetrating through the mounting plane; the spiral curve portion (2) of the vibrating diaphragm is fixedly connected to the periphery of the upper side of the housing (3).