公开(公告)号：US06515940B2

公开(公告)日：2003-02-04

申请号：US09864313

申请日：2001-05-25

申请人： Vito Suppa ,  Michel Letiche ,  Michel Lattard

发明人： Vito Suppa ,  Michel Letiche ,  Michel Lattard

IPC分类号： H04R1700

CPC分类号： G10K11/006 ,  B06B1/045

摘要： Disclosed is an electrodynamic transducer designed to emit acoustic waves in a sea environment while being capable of withstanding external explosions. The lower pole piece of such a transducer is drilled with vertical holes enabling air to circulate inside the transducer in order to efficiently cool the coil that makes it work. Light metal masses that are good heat conductors, attached between the magnets which excite the pole pieces, furthermore drain the heat out of the transducer. The efficiency of such a transducer is increased by at least 4.