公开(公告)号：US10085079B2

公开(公告)日：2018-09-25

申请号：US15513061

申请日：2015-09-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hitoshi Sato ,  Kazuma Fujioka

IPC: H04R1/02 ,  H04R1/06 ,  H04R1/20 ,  H04R7/02 ,  H04R7/16

CPC classification number: H04R1/025 ,  H04R1/02 ,  H04R1/06 ,  H04R1/20 ,  H04R7/02 ,  H04R7/16 ,  H04R2201/021 ,  H04R2400/11

Abstract: A loudspeaker includes a diaphragm, a frame, an attachment unit, and a fixing member. The frame has a front surface, a mounting surface disposed on a side opposite to the front surface, and a wall surface disposed in a standing manner from the mounting surface. And the frame holds an outer peripheral edge of the diaphragm. The attachment unit includes: a base portion having a top surface facing the mounting surface, a bottom surface on a side opposite to the top surface, a first side surface facing the wall surface, and a second side surface disposed on a side opposite to the first side surface; a first base rib projecting toward the wall surface from the first side surface; a second base rib projecting from the second side surface and extending to the top surface; and a locking portion disposed on a side near the bottom surface of the base portion. The fixing member penetrates the frame from the front surface to the mounting surface and is fixed to the base portion by screwing.

公开(公告)号：US11153689B2

公开(公告)日：2021-10-19

申请号：US16841253

申请日：2020-04-06

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takuji Miyamoto ,  Kengo Takeda ,  Kazuma Fujioka

IPC: H04R9/02 ,  H04R31/00 ,  H04R7/26

Abstract: A loudspeaker including a magnetic circuit; a voice coil body; a diaphragm attached to the voice coil body; a housing which accommodates the magnetic circuit and the voice coil body and to which an outer circumferential portion of the diaphragm and the magnetic circuit are attached; two connection terminals disposed exposed inside and outside the housing; and signal wires which extend from the voice coil body and are connected to the connection terminals. Each signal wire is outwardly curved to be away from a virtual straight line connecting the proximal end of the signal wire and the connection portion. The distal end of the signal wire projects from the connection portion toward the voice coil body.