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US 2010/0301683 A1Published application
Magnetnic circuit system
AssigneesAac Acoustic Technologies (Shenzhen) Co., Ltd., American Audio Components Inc.
InventorXu-Dong Yan
Life of this patent
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Abstract
A magnetic circuit system includes a T-shaped yoke, a magnet, and a top plate. The top plate has a centre hole, an internal end around the centre hole thereof, and two projecting elements provided separately on upper surface and lower surface of the internal end, which improves non-linear distortion of a transducer using the magnetic circuit system.
Claims7
A magnetic circuit system, comprising:
- a yoke having a lower plate and a center pole projecting from a central part of the lower plate;
- a magnet having a through hole, and coupled to the lower plate of the magnet with the through hole around the centre pole;
- a top plate attached to the magnet, and having a centre aperture around the central pole of the yoke;
- a magnetic gap defined between an inner surface of the top plate and an outer surface of the centre pole of the yoke;
- wherein
- the top plate has a portion close to the central pole of the yoke having a thickness greater than that of the remaining portion.
3 more elements
A transducer having a magnetic circuit system, the magnetic circuit system comprising:
- a yoke having a lower plate and a center pole projecting from a central part of the lower plate;
- a magnet having a through hole, and coupled to the lower plate of the magnet with the through hole around the centre pole;
- a top plate attached to the magnet, and having a centre aperture around the central pole of the yoke;
- a magnetic gap defined between an inner surface of the top plate and an outer surface of the centre pole of the yoke;
- wherein
- the top plate has a portion close to the central pole of the yoke having a thickness greater than that of the remaining portion.
3 more elements
Dependencies are inferred from the claim text.