Thermal chimney equipped audio speaker cabinet

Details Thermal chimney equipped audio speaker cabinet Thermal chimney equipped audio speaker cabinet

2007-02-20

2007-02-20

Ni, Suhan (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S354000

Reexamination Certificate

active

10768197

ABSTRACT:
A thermally conductive chimney tube extends through a loudspeaker cabinet that encloses a volume of air heated by a speaker driver. The open ends of the chimney are outside the cabinet. A column of air within the chimney is in contact with the external ambient air, but sealed off from the enclosed volume of air. As the speaker driver heats the enclosed volume of air, the material of the chimney transfers the heat to the column of air, which rises and carries the heat away into the external ambient air, cooling the inside of the loudspeaker cabinet and thus cooling the speaker driver.

REFERENCES:
patent: 4210778 (1980-07-01), Sakurai et al.
patent: 4811403 (1989-03-01), Henricksen et al.

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