Thermal management system for loudspeaker having internal...

Details Thermal management system for loudspeaker having internal... Thermal management system for loudspeaker having internal...

2006-01-31

2009-12-15

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S150000, C381S396000, C381S412000

Reexamination Certificate

active

07634101

ABSTRACT:
A thermal management system promotes cooling effects of a loudspeaker. The thermal management system includes an internal heat sink having a tubular shape and mounted between a pole piece and a magnet of the loudspeaker, the internal heat sink having pleat portions to form a plurality of air passages on an inner surface from top to bottom thereof; and a back plate connected to the pole piece and having ventilation holes that vertically penetrate through the back plate, the internal heat sink and the magnet being mounted on the back plate. A lower end of the air passage on the internal heat sink is positionally matched with an upper opening of the ventilation hole on the back plate, thereby allowing an air flow through the air passage and the ventilation hole.

REFERENCES:
patent: 5042072 (1991-08-01), Button
patent: 6327371 (2001-12-01), Proni
patent: 7-115698 (1995-05-01), None
patent: 2002-27591 (2002-01-01), None

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