公开(公告)号：US09872108B2

公开(公告)日：2018-01-16

申请号：US15171308

申请日：2016-06-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-jin Yoon ,  Min Kim ,  Liam Joseph Kelly

IPC: H04R9/06 ,  H04R9/02 ,  H04R7/18 ,  H04R7/12 ,  H04R7/16

CPC classification number: H04R9/06 ,  H04R1/403 ,  H04R3/00 ,  H04R7/12 ,  H04R7/16 ,  H04R7/18 ,  H04R9/025 ,  H04R9/047 ,  H04R2209/022 ,  H04R2400/11 ,  H04R2499/11

Abstract: A loudspeaker device includes a frame having a bottom portion with a curved surface along a first direction and a pair of lateral portions provided at lateral sides of the bottom portion in the first direction; a plurality of magnets curved and extended along the curved surface of the bottom portion, and arranged to be spaced apart from each other; a diaphragm supported by the pair of lateral portions, curved in parallel with the curved surface of the bottom portion, and spaced apart at a predetermined distance from top surfaces of the plurality of magnets; and a coil provided on the diaphragm at positions corresponding to spaces between the plurality of magnets in the first direction, the coil being configured to drive the diaphragm to vibrate in a direction perpendicular to the curved surface of the bottom portion of the frame by a magnetic field formed by the plurality of magnets as an audio signal is electrically applied.