Abstract: A double cone-type loudspeaker which comprises a subcone made of highly heat-conductive material, attached to the front of the main cone and to a voice coil bobbin made of highly heat-conductive material. Heat generated in the coil portion of the voice coil travels directly to the bobbin portion and subcone, and is released to the front of the speaker. Consequently, a double cone-type loudspeaker with high maximum input power and high heat radiating capability is achieved.
Type:
Grant
Filed:
June 6, 1997
Date of Patent:
August 3, 1999
Assignee:
Matsushita Electric Industrial Co., Ltd.
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