Patent ID: 9094750
Filing Date: 2015-07-28
Classification: H04R

Abstract:
1. A loudspeaker, comprising: a frame; a yoke fixed to the frame; a magnet fixed to the yoke; a plate fixed to an upper surface of the magnet, the upper surface being opposite to a surface of the magnet which is fixed to the yoke; a voice coil arranged, in a vibratable manner, in a first magnetic gap formed between the yoke and the plate; a diaphragm having an outer edge portion joined to the voice coil; a support member which supports the diaphragm in a vibratable manner, and includes a plurality of edges, one end of each of the edges being fixed to the frame, and a magnetic fluid disposed between the plate and the voice coil, wherein the plate comprises a through-hole is formed so as to penetrate through the yoke, the magnet, and the plate, the through-hole connecting a space outside the loudspeaker with a space at a back surface of the diaphragm, and the protruding part is arranged extending into the through-hole so as to fix the yoke, the magnet, and the plate.