| 摘要 |
PROBLEM TO BE SOLVED: To provide a molded motor extinguishing bearing current and dissolving wear, damage and destruction of a bearing part only by forming a conductive layer in the molded motor by a simple and inexpensive method. SOLUTION: A coil 4 is wound around a stator core 2 covered with an insulating layer 3. A first conductive layer 22 is installed on an inner peripheral side surface 13 of a motor frame 8 which is molded and integrally formed by insulating resin and a second conductive layer 23 is disposed on an outer peripheral side surface 9 so that it is conductive with the stator core 2 through an outer peripheral side extending part 10. The stator core 2 to which the coil 4 is wound is completely sealed by the first conductive layer 22 and the second conductive layer 23. Thus, the coil 4 and a rotator 18 are electrostatically shielded by the conductive layers. Consequently, bearing current is extinguished, and wear, damage and destruction of the bearing part, which occur due to bearing current, can be dissolved in the molded motor. COPYRIGHT: (C)2009,JPO&INPIT
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