Title:
SPEAKER DEVICE
Document Type and Number:
Japanese Patent JP2002281592
Kind Code:
A
Abstract:
To efficiently radiate heat generated at a coil bobbin.
The speaker device 1 is provided with a magnetic circuit part 3 having a pole part 4 on one side part of a diaphragm 10 and provided with a heat radiation body 16 thermally connected with the pole part on the other side part of the diaphragm.
Inventors:
KOBAYASHI SHINJI
HIROZAWA TOSHIO
HIROZAWA TOSHIO
Application Number:
JP2001075641A
Publication Date:
September 27, 2002
Filing Date:
March 16, 2001
Export Citation:
Assignee:
SONY CORP
International Classes:
H04R9/02; (IPC1-7): H04R9/02
Attorney, Agent or Firm:
Yuji Komatsu