公开(公告)号：US20180167734A1

公开(公告)日：2018-06-14

申请号：US15834449

申请日：2017-12-07

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shuichi KONNO ,  Ryo KURIBAYASHI ,  Kazutaka KUBO ,  Hiroyuki AMADA ,  Yohei JIN ,  Hiroyuki MORIMOTO

IPC: H04R7/12 ,  H04R9/06 ,  H04R9/02 ,  H04R7/18 ,  H04R1/28

CPC classification number: H04R7/127 ,  H04R1/288 ,  H04R7/12 ,  H04R7/18 ,  H04R7/20 ,  H04R9/025 ,  H04R9/06 ,  H04R2307/021 ,  H04R2307/204 ,  H04R2400/11

Abstract: A loudspeaker diaphragm includes a cone having a curved surface from the outer to the inner periphery, and an annular edge of which inner peripheral part is bonded to the front side of the outer peripheral part of the cone. When seen from the front, the outer periphery of the cone is defined by smooth connection of three larger-diameter parts tangent to a first circle with a larger diameter, and three smaller-diameter parts each located between adjacent two of the three larger-diameter parts and tangent to a second circle with a smaller diameter. In the cone, a shape defined by connecting together points at the same position on the central axis is more circular as the points approach the inner periphery from the outer periphery. The inner periphery of the edge has a smaller radius than the second circle.

公开(公告)号：US20160234601A1

公开(公告)日：2016-08-11

申请号：US15023681

申请日：2015-03-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takafumi YUASA ,  Kenji YAMAUCHI ,  Satoshi TAKAYAMA ,  Koichi NAKAYAMA ,  Ryo KURIBAYASHI

IPC: H04R7/12 ,  F21V8/00 ,  H04R9/02 ,  F21V33/00 ,  H04R1/02 ,  H04R9/04

CPC classification number: H04R7/125 ,  B60R11/0217 ,  F21V33/0056 ,  G02B6/0055 ,  H04R1/025 ,  H04R1/028 ,  H04R7/12 ,  H04R9/025 ,  H04R9/04 ,  H04R9/045 ,  H04R2307/021 ,  H04R2307/025 ,  H04R2307/029 ,  H04R2499/11

Abstract: A loudspeaker includes a light-emitting element, a frame, a magnetic circuit provided with a magnetic gap, a diaphragm, a voice coil bobbin, and a voice coil. The diaphragm includes an inner peripheral end portion having an end face to which a light-emitting element is coupled, a light-guide portion, a reflective surface, and an outer peripheral end portion coupled to the frame. The first end of the voice coil bobbin is coupled to the inner peripheral end portion of the diaphragm, and the second end thereof is inserted into the magnetic gap. A voice coil is wound on the second end of the voice coil bobbin.

Abstract translation: 扬声器包括发光元件，框架，设置有磁隙的磁路，隔膜，音圈线轴和音圈。 隔膜包括具有与发光元件联接的端面的内周端部，导光部，反射面和与框架连接的外周端部。 音圈筒管的第一端连接到隔膜的内周端部，其第二端插入到磁隙中。 音圈绕在线圈架的第二端上。