Invention Grant
- Patent Title: Electrodynamic loudspeaker
- Patent Title (中): 电动扬声器
-
Application No.: US11294824Application Date: 2005-12-06
-
Publication No.: US07676053B2Publication Date: 2010-03-09
- Inventor: Satofumi Nagaoka
- Applicant: Satofumi Nagaoka
- Applicant Address: JP Neyagawa-shi
- Assignee: Onkyo Corporation
- Current Assignee: Onkyo Corporation
- Current Assignee Address: JP Neyagawa-shi
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2005-098800 20050330
- Main IPC: H04R25/00
- IPC: H04R25/00

Abstract:
An electrodynamic loudspeaker 1 includes a magnetic circuit 10 and a vibrator 20. The magnetic circuit 10 includes a magnet 11 and poles 12 and 13 adhering to the magnet 11. The vibrator 20 includes a coil bobbin 21 and voice coils 22 and 23 wound around and fixed to a portion of the coil bobbin 21 facing the poles 12 and 13. A magnetic member 30 is fixed to the coil bobbin 21 of the vibrator 20 at a position spaced apart from the voice coils 22 and 23. The magnetic member 30 is fixed at a position on the coil bobbin 21 so as to extend over an area facing the magnet 11 of the magnetic circuit 10.
Public/Granted literature
- US20060222200A1 Electrodynamic loudspeaker Public/Granted day:2006-10-05
Information query