| 摘要 |
PURPOSE: A receiver manufacturing method for a mobile communicating apparatus is provided to widen a frequency band by making heat-discharge that feeds to a voice coil, easy and to improve the calling quality of the mobile phone. CONSTITUTION: The receiver manufacturing method for a mobile communicating apparatus which installs a vibrating plate(24) attaching a voice coil(22) inside a frame(20), comprises the steps of; making that the center part and the outer circumference of a magnet(26) have different polarity after injection-molding the frame with the magnet by facing the center part of the certain shaped magnet injection metal mold and the center part; forming a ring recessed groove(32) which has the inserted voice coil, on the inner circumference of the frame; and forming an air vent hole(30) on the center of the magnet.
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