| 摘要 |
PURPOSE: A coreless vibration motor is provided to reduce the number of parts by mounting a vibrator into the interior of a cylindrical case, thereby eliminating a bush which supports the rotary shaft. CONSTITUTION: A vibrator(80) inserted into a rotary shaft(22) is mounted into the interior of a cylindrical case(10). The vibrator(80) is molded so as to act as a bush which supports the rotary shaft(22). The vibrator(80) is mounted to the rotary shaft(22). A bush(25) is mounted to a winding holder(90) molded together with a rectifier(26). The winding holder installs a coil(24) on the outer surface to form a rotor. A bearing housing(50) which supports the bearing(52) is disposed at both ends of the rotor shaft(22). A permanent magnet(12) is installed on the outer side of the bearing housing(50). A stator is installed in the cylindrical case(10). A brush(62) supplies the current. A brush holder(60) fixes the brush(62). A lead wire(70) applies the power source.
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