FLAT TYPE SPEAKER COMBINING N MAGNET AND N+1 VOICE COIL PLATE

摘要

The present invention relates to a flat-type speaker, and more particularly, to a flat-type speaker having one magnet for transferring vibration into a diaphragm and two voice coil plates in one magnetic circuit, wherein the voice coil plates are coupled to both sides of the magnet. The flat-type speaker in which n magnets and n+1 voice coil plates are coupled to each other consists essentially of: the magnet positioned on a central portion; a pair of yoke plates having magnetic bodies spaced a predetermined distance apart from the magnet, such that the magnet is between the yoke plates; two voice coil plates having voice coils inserted between the magnet and one of the yoke plates and between the magnet and the other yoke plate; and a diaphragm vibrated by receiving the vibration of the voice coil plates in a state where the diaphragm contacts upper ends of the voice coil plates.

主权项

1. A flat-type speaker comprising:
n magnets and n+1 voice coil plates, the flat-type speaker the flat-type speaker including: one magnet located at a central portion; a pair of yoke plates spaced apart from the magnet at a predetermined interval in such a way that the magnet is interposed between the yoke plates; two voice coil plates respectively having voice coils which are inserted between the magnet and one of the yoke plates and between the magnet and the other one of the yoke plates; and a diaphragm vibrated by receiving vibration of the voice coil plates in a state where the diaphragm gets in contact with upper ends of the voice coil plates.