SLIM TYPE SPEAKER AND MAGNETIC CIRCUIT THEREFOR
First Claim
1. A magnetic circuit for a slim type speaker, comprising:
- a perpendicular-magnetized permanent magnet;
a plate that is formed of a paramagnetic material and is attached to a surface of the perpendicular-magnetized permanent magnet; and
horizontal-magnetized permanent magnets that are arranged at opposite sides of the perpendicular-magnetized permanent magnet and are spaced apart from the perpendicular-magnetized permanent magnet by a predetermined interval,wherein the perpendicular-magnetized permanent magnet and the horizontal-magnetized permanent magnets interact with each other to form a uniform magnetic field.
1 Assignment
0 Petitions
Accused Products
Abstract
A magnetic circuit and a speaker including the magnetic circuit. The speaker includes: a bottom case; a magnetic circuit including a perpendicular-magnetized permanent magnet and a horizontal-magnetized permanent magnet spaced apart from each other by a predetermined interval; a diaphragm; a voice coil attached on a surface of the diaphragm, disposed in a magnetic gap between the perpendicular-magnetized permanent magnet and the horizontal-magnetized permanent magnet and which vibrates the diaphragm; and a front cover coupled to the bottom case to fix the magnetic circuit and the diaphragm. The magnetic circuit includes a perpendicular-magnetized permanent magnet and a plurality of horizontal-magnetized permanent magnets. The perpendicular-magnetized permanent magnet is disposed between the plurality of horizontal-magnetized permanent magnets such that the plurality of horizontal-magnetized permanent magnets support the diaphragm and interact with the perpendicular-magnetized permanent magnet to create a uniform magnetic field.
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Citations
7 Claims
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1. A magnetic circuit for a slim type speaker, comprising:
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a perpendicular-magnetized permanent magnet; a plate that is formed of a paramagnetic material and is attached to a surface of the perpendicular-magnetized permanent magnet; and horizontal-magnetized permanent magnets that are arranged at opposite sides of the perpendicular-magnetized permanent magnet and are spaced apart from the perpendicular-magnetized permanent magnet by a predetermined interval, wherein the perpendicular-magnetized permanent magnet and the horizontal-magnetized permanent magnets interact with each other to form a uniform magnetic field. - View Dependent Claims (2, 3, 4)
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5. A slim type speaker comprising:
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a bottom case; a magnetic circuit comprising a perpendicular-magnetized permanent magnet and a horizontal-magnetized permanent magnet which are spaced apart from each other by a predetermined interval on the bottom case, and a plate attached to a surface of the perpendicular-magnetized permanent magnet; a diaphragm; a voice coil that is attached on a lower surface of the diaphragm, is disposed in a magnetic gap between the perpendicular-magnetized permanent magnet and the horizontal-magnetized permanent magnet, and vibrates the diaphragm; and a front cover that is coupled to the bottom case to closely fix the magnetic circuit and the diaphragm. - View Dependent Claims (6, 7)
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Specification