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244. (CN1369190) Low cost motor structure for rare-earth-magnet loudspeakers

Application Number: 99815224.2 Application Date: 13.11.1999
Publication Number: 1369190 Publication Date: 11.09.2002
Grant Number: 100348074 Grant Date: 07.11.2007
Publication Kind : C
Prior PCT appl.: Application Number:PCTUS1999027011 ; Publication Number:2000030405 Click to see the data
IPC:
H04R 25/00
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
25
Deaf-aid sets
Applicants: Godehard A. Guenther
戈德哈德A·冈瑟
Inventors: Godehard A. Guenther
戈德哈德A·冈瑟
Agents: cheng wei
北京纪凯知识产权代理有限公司
Priority Data: 60/108,338 13.11.1998 US
Title: (EN) Low cost motor structure for rare-earth-magnet loudspeakers
(ZH) 用于稀土磁体扬声器的低成本马达结构
Abstract: front page image
(EN) A loudspeaker magnetic motor utilizes a voice coil (20') with two or more wire coils that are connected in parallel and that are layered on top of one another. The motor utilizes, as a magnetic field source, a permanent magnet and, more particularly, a permanent magnet that includes a rare earth metal such as a neodymium boron iron magnet.
(ZH)

一种扬声器磁马达使用一个具有两个或更多金属线圈的音圈(20′),这些金属线圈并联且一个在另一个之上一层层设置。该马达使用一块永久磁体作为磁场源,更确切地说,该永久磁体包括稀土金属,如一个钕硼铁磁体。