Securing magnets in high-efficiency planar magnetic transducers

Details Securing magnets in high-efficiency planar magnetic transducers Securing magnets in high-efficiency planar magnetic transducers

2007-07-10

2007-07-10

Tran, Sinh (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S386000

Reexamination Certificate

active

10919018

ABSTRACT:
In an audio system, cyanoacrylate adhesive can reliably hold neodymium magnets to a stator for a planar magnetic transducer when the transducer generates high output. In one implementation, the planar magnetic transducer can include multiple neodymium magnets aligned in rows on top of a stator. Each neodymium magnet may be aligned with another neodymium magnet, and each pair of neodymium magnets can be separated by a gap. The transducer can have spacers to fill each gap and separate each pair of neodymium magnets. Cyanoacrylate adhesive can bond the neodymium magnets to the stator and bond each spacer between each pair of neodymium magnets.

REFERENCES:
patent: 2002/0191808 (2002-12-01), Croft et al.
patent: 2004/0140545 (2004-07-01), Farnworth et al.
“Speakers: Dynamic Speaker Alternatives: Planar-Magnetic Speakers”, http://www.audiovideo101.com/learn/knowit/speakers/speakers08.asp.
Anthony Armstrong, “Different Types of Speaker”, Understanding Different Types of Loudspeaker, http://stereos.about.com/cs/componentguide/a/loudspeakers—2.htm.
“Frequently Asked Ques”, MAD Magnetic Audio Devices-Muzikbox-Planar Magnetic Surface Arrays from HPV T . . . , http://www.getmad.us/FAQ.html.
“What is MAD?”, MAD Magnetic Audio Devices-Muzibox-Planar Magnetic Surface Arrays from HPV T . . . , http://getmad.us?WhatIsMAD.html.

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