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1. (WO2013110230) HEAT DISSIPATION DEVICE FOR MOVING-COIL LOUDSPEAKER

Pub. No.:    WO/2013/110230    International Application No.:    PCT/CN2013/000046
Publication Date: Fri Aug 02 01:59:59 CEST 2013 International Filing Date: Fri Jan 18 00:59:59 CET 2013
IPC: H04R 9/02
Applicants: QIU, Xiangkang
邱向康
Inventors: QIU, Xiangkang
邱向康
Title: HEAT DISSIPATION DEVICE FOR MOVING-COIL LOUDSPEAKER
Abstract:
The present utility model relates to the technical field of loudspeakers. Disclosed is a heat dissipation device for a moving-coil loudspeaker, consisting of a heat conduction pad, a heat conduction rod and a heat sink; the heat conduction pad, the heat conduction rod and the heat sink are combined in a single unit by means of corresponding structures, and are installed in the axial middle of the loudspeaker; the heat conduction pad is located at the voice coil end of the loudspeaker; the heat conduction rod penetrates through the axial middle structure of the loudspeaker, and is connected to the heat conduction pad and to the heat sink by its upper and lower ends respectively. The heat sink is located outside the lower magnetic conductive plate of an outer magnetic loudspeaker or the magnetic conductive bowl of an inner magnetic loudspeaker. The heat dissipation device is provided with a through hole or a groove therein, thus reserving a channel for interaction between the interior of the loudspeaker voice coil and the exterior of the loudspeaker.