The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2009
Filed:
Jan. 31, 2006
Jason Kemmerer, Torrance, CA (US);
Jason Kemmerer, Torrance, CA (US);
Alpine Electronics, Inc, Tokyo, JP;
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.