公开(公告)号：US20180352336A1

公开(公告)日：2018-12-06

申请号：US15955228

申请日：2018-04-17

Applicant: ALPINE ELECTRONICS, INC.

Inventor： Masaru Yamagami

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

CPC classification number: H04R7/18 ,  H04R7/12 ,  H04R9/043 ,  H04R9/06 ,  H04R31/006

Abstract: A cap member is attached to an opening end portion of a bobbin on which a voice coil is wound. The cap member includes a bobbin reinforcement portion including a cylindrical portion and a bottom surface portion. The cylindrical portion opposes an inner surface of the bobbin, and the cylindrical portion and the inner surface of the bobbin are fixed to each other in at least a vibration plate fixed portion and a damper member fixed portion.

公开(公告)号：US09479873B2

公开(公告)日：2016-10-25

申请号：US14696083

申请日：2015-04-24

Applicant: Alpine Electronics, Inc.

Inventor： Masaru Yamagami ,  Arata Tada ,  Kei Tanabe

IPC: H04R1/02 ,  H04R7/16 ,  H04R9/02 ,  H04R1/00

CPC classification number: H04R7/16 ,  H04R9/02 ,  H04R9/025 ,  H04R2209/022 ,  H04R2400/11 ,  H04R2499/13

Abstract: A support chassis mounted on a sounding side of a speaker apparatus is formed of an iron material. The support chassis is formed in a shape in which a central supporting part nears a main-body chassis. A magnetic field generating unit is fixed to the central supporting part on a side of a recess of the support chassis. The support chassis includes a frame part, the central supporting part, and spoke parts. In the spoke part, a width dimension D1 of an inner end part is formed narrower than a width dimension D2 of an outer end part. Therefore, a resistance in a case where a magnetic flux passes through the spoke part increases, and the leaked magnetic field is hardly induced from the magnetic field generating unit to the spoke part. Therefore, a reduction in a speaker output can be prevented.

Abstract translation: 安装在扬声器装置的发声侧的支撑底盘由铁材料形成。 支撑底盘形成为中心支撑部分靠近主体底架的形状。 磁场产生单元在支撑底盘的凹部的一侧固定到中央支撑部。 支撑底盘包括框架部分，中心支撑部分和辐条部分。 在轮辐部分中，内端部的宽度尺寸D1形成得比外端部的宽度尺寸D2窄。 因此，在磁通量通过轮辐部的情况下的电阻增加，并且从磁场产生部向轮辐部难以感应泄漏的磁场。 因此，可以防止扬声器输出的减小。

公开(公告)号：US20160029127A1

公开(公告)日：2016-01-28

申请号：US14696083

申请日：2015-04-24

Applicant: Alpine Electronics, Inc.

Inventor： Masaru Yamagami ,  Arata Tada ,  Kei Tanabe

IPC: H04R7/16 ,  H04R9/02

CPC classification number: H04R7/16 ,  H04R9/02 ,  H04R9/025 ,  H04R2209/022 ,  H04R2400/11 ,  H04R2499/13

Abstract: A support chassis mounted on a sounding side of a speaker apparatus is formed of an iron material. The support chassis is formed in a shape in which a central supporting part nears a main-body chassis. A magnetic field generating unit is fixed to the central supporting part on a side of a recess of the support chassis. The support chassis includes a frame part, the central supporting part, and spoke parts. In the spoke part, a width dimension D1 of an inner end part is formed narrower than a width dimension D2 of an outer end part. Therefore, a resistance in a case where a magnetic flux passes through the spoke part increases, and the leaked magnetic field is hardly induced from the magnetic field generating unit to the spoke part. Therefore, a reduction in a speaker output can be prevented.

Abstract translation: 安装在扬声器装置的发声侧的支撑底盘由铁材料形成。 支撑底盘形成为中心支撑部分靠近主体底架的形状。 磁场产生单元在支撑底盘的凹部的一侧固定到中央支撑部。 支撑底盘包括框架部分，中心支撑部分和辐条部分。 在轮辐部分中，内端部的宽度尺寸D1形成得比外端部的宽度尺寸D2窄。 因此，在磁通量通过轮辐部的情况下的电阻增加，并且从磁场产生部向轮辐部难以感应泄漏的磁场。 因此，可以防止扬声器输出的减小。