Panasonic Intellectual Property Management Co., Ltd.

Panasonic Automotive Systems Co., Ltd.

Kazuma Fujioka

Kengo Takeda

Hitoshi Sato

Tetsushi Itano

Takuji Miyamoto

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.

Loudspeaker

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.

Loudspeaker and method of manufacturing loudspeaker

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.

Growing community of inventors

Osaka, Japan

Kazuma Fujioka