Patent ID: 9648424
Date: 2017-05-09
CPC Classifications: H04R,H04S

Claim:
1. A tablet woofer, comprising: a vibration diaphragm, at least four mutually independent driving units, and a housing for accommodating and fixing the vibration diaphragm and the driving units; wherein, the driving units comprise independent voice coil units and magnetic circuit units corresponding to the voice coil units, and the voice coil units are attached and fixed to the vibration diaphragm respectively; the tablet woofer further comprises a FPCB (Flexible Printed Circuit Board) for connecting internal circuits with external circuits of the woofer, wherein the FPCB is provided at both sides of the housing, wherein a part of the FPCB provided at a side of the housing close to the voice coil units is electrically connected with the voice coil units via leading wires of the voice coils, and a part of the FPCB provided at a side of the housing away from the voice coil units is electrically connected with the external circuits of the tablet woofer; the housing comprises a mounting plane and an annular side wall surrounding the mounting plane, and mounting holes for accommodating and fixing the magnetic circuit units and sound holes penetrating through the mounting plane are provided on the mounting plane; the sound holes comprise a central sound hole provided in the center of the mounting plane and edge sound holes provided between the annular side wall and the mounting holes; and, the FPCB enables both sides of the mounting plane to be in communication with each other through the sound holes.