公开(公告)号：US20230319482A1

公开(公告)日：2023-10-05

申请号：US18206498

申请日：2023-06-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuma FUJIOKA ,  Kengo TAKEDA ,  Tetsushi ITANO

IPC: H04R9/06 ,  H04R9/02 ,  H04R9/04

CPC classification number: H04R9/06 ,  H04R9/027 ,  H04R9/046 ,  H04R9/043

Abstract: A loudspeaker including a magnetic circuit including a magnetic gap, a voice coil body inserted in the magnetic gap, a diaphragm attached to the voice coil body, transmission members arranged on a lateral side of the extend magnetic circuit along the magnetic circuit with a predetermined gap to transmit an electric signal to be input to the voice coil body, and a housing made of a resin and integrated with the magnetic circuit and the transmission members. The transmission members include externally exposed portions and internally exposed portions.

公开(公告)号：US20200245072A1

公开(公告)日：2020-07-30

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.