| 摘要 |
PROBLEM TO BE SOLVED: To obtain an electromagnetic apparatus capable of improving break resistance of a conductor by preventing break of the conductor caused by the chemical reaction of the copper wire that occurs when a sulfur with organic sulfur compound in oil reaches the conductor and makes reaction with it. SOLUTION: The electromagnetic apparatus 100 comprises a case material 2, a shaft 4 rotatively held by the case material 2; and a motor body 30 having a stator 60, wherein a coil 70 mounted inside the case material 2 and configured so as to wind a conductor to each conductor-winding part 53a of first and second bobbins 53A, 53B is built in by a case mold 62 and wherein an iron core 55 is arranged so as to cover the case mold 62, and a rotor 6 fixed to the shaft 4. The coil 70 includes first and second-phase exciting coils 7a, 7b that are formed by winding two pieces of conductors to the conductor-winding part 53a of the first bobbin 53A in a unifilar mode, and also includes third and fourth-phase exciting coils 7c, 7d that are formed by winding two pieces of conductors to the conductor-winding part 53a of the second bobbin 53B in a unifilar mode.
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