Patent ID: 11889259
Assignee: SOUND FUN CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A speaker unit, comprising:
a first diaphragm in a cone shape;
a second diaphragm in a sheet shape forming a rounded surface portion curved from one end side to another end side;
a blade piece in a plate shape to which the one end side of the second diaphragm is attached;
a driver unit that drives the first diaphragm and the second diaphragm via the blade piece; and
a support member on which the first diaphragm, the second diaphragm, and the driver unit are mounted, wherein
the support member includes:
a support plate in a flat plate shape including an opening of a size from which a large diameter side of the first diaphragm is exposed;
a support surface continuously provided on the support plate and includes a rounded surface portion equivalent to the curve of the second diaphragm;
a fixing unit continuously provided at a terminating end portion of the support surface to attach the other end side of the second diaphragm thereto; and
a flexible elastic support member is arranged on the support surface, and
in the first diaphragm, a small diameter side is connected to the driver unit, the large diameter side is connected to the support plate of the support member,
the blade piece is connected to the driver unit via a center cap attached to a tip end of a voice coil of the driver unit to protrude from the small diameter side to the large diameter side of the first diaphragm, and
in the second diaphragm, the one end side is connected to the blade piece, and the other end side is connected to the fixing unit of the support member, and
the elastic support member intervenes between a depression surface side of the rounded surface portion and the support surface of the support member.