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Title:
LOUDSPEAKER APPARATUS
Document Type and Number:
Japanese Patent JP2005269330
Kind Code:
A
Abstract:

To provide a loudspeaker apparatus capable of efficiently radiating heat produced in a voice coil or the like so as to prevent exfoliation or the like of an adhesive for fixing a connection member to various components of the loudspeaker apparatus.

A plurality of openings are formed on the cylindrical part of the connection member; and when the voice coil bobbin is vibrated toward a sounding side, the air in the space between a diaphragm and a conduction damper is sucked into a space between the cylindrical part and the voice coil bobbin or the like, through each opening of the connection member. The air becoming high in temperature around the voice coil by the suction energy is discharged to a space toward the inner circumferential edge side of the frame; whereas, when the voice coil bobbin is deflected to the reversel side of the sounding side, the air in the space between the voice coil bobbin and the plate is discharged to a space between the inner circumferential wall of the voice coil bobbin and a magnetic circuit system. The air becoming high in temperature around the voice coil by the exhaust energy is discharged to the external space of the loudspeaker apparatus through each opening of the connection member.


Inventors:
WATABE TOMOYUKI
Application Number:
JP2004000080137
Publication Date:
September 29, 2005
Filing Date:
March 19, 2004
Export Citation:
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Assignee:
PIONEER ELECTRONIC CORP
PIONEER TOHOKU CORP
International Classes:
H04R9/00; H04R1/00; H04R9/02; H04R9/04; H04R9/06; H04R11/02; (IPC1-7): H04R9/00; H04R9/02; H04R9/04
Attorney, Agent or Firm:
中村 聡延
江上 達夫



 
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