Speaker diaphragm, speaker using said diaphragm, and speaker diaphragm manufacturing method

摘要

A speaker diaphragm includes a fabric layer in which impregnated thermosetting resin is thermally cured, and a paper layer integrated on a rear face of this fabric layer. Fluffs of the paper layer filling stitches of the fabric layer are entangled with threads of the fabric layer from a surface of the fabric layer, and are firmly fixed by thermosetting resin. This integrates the layers in the state that the paper layer is filled in the stitches of the fabric layer. Accordingly, internal loss and Young's modulus of the speaker diaphragm can be increased. As a result, the speaker sound quality can be improved.

主权项

1. A speaker comprising:
a speaker diaphragm including: a fabric layer impregnated with thermosetting resin, the thermosetting resin being thermally cured; and a paper layer integrated on a rear face of the fabric layer; wherein fluffs of the paper layer pass through stitches of the fabric layer which are intertwined and protrude from a front surface of the fabric layer and over the stitches, the fluffs of the paper layer are entangled with threads of the fabric layer from the front surface of the fabric layer, and is integrated by the thermosetting resin, and a frame connected to the speaker diaphragm a magnetic circuit held by the frame; and a voice coil disposed in a magnetic gap of the magnetic circuit.