DIAPHRAGM FOR MICRO SPEAKER AND MICRO SPEAKER USING THEREOF

摘要

A diaphragm for microspeakers and microspeakers using the same are provided to improve sound quality of the microspeakers by applying coating agent on the diaphragm surface. A frame(110) includes a space therein. A magnet(140) is magnetized in a vertical direction. An upper plate(150) is attached to the magnet to form a magnetic circuit in cooperation with a yoke(130). A diaphragm(170) is assembled to the frame surface and is supported to be vibrated in a vertical direction. A coating agent is applied on the diaphragm surface. A voice coil(160) is bonded to the diaphragm and is moved according to a magnetic field in the vertical direction. The voice coil vibrates the diaphragm. A protector(180) is attached to the frame to protect the diaphragm.