Speaker
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United States of America Patent
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Issued Date -
Dec 29, 2016
app pub date -
Jan 26, 2016
filing date -
Jun 23, 2015
priority date (Note) -
Published
status (Latency Note)
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Abstract
A speaker is disclosed in the present disclosure. The speaker includes a vibration system including a vibrating diaphragm and a flat voice coil for driving the vibrating diaphragm; a magnetic circuit system including a first permanent magnet and a second permanent magnet, which are separated with opposite magnetic poles thereof facing each other; a magnetic gap formed between the first permanent magnet and the second permanent magnet for partially receiving the flat voice coil; and a housing for accommodating the vibrational system and the magnetic circuit system. Two magnetic poles of the first permanent magnet and two magnetic poles of the second permanent magnet are close to each other respectively, N-pole of the first permanent magnet is separated from and faces S-pole of the second permanent magnet, while S-pole of the first permanent magnet is separated from and faces N-pole of the second permanent magnet.
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