| 摘要 |
PURPOSE:To effectively hold a condenser in a rotor for containing a condenser for eliminating noise in each slot formed between adjacent coils in a circumferential direction by compressing the coils along the axial directon of a rotational shaft. CONSTITUTION:A core 2 is rotated integrally with a rotational shaft 1, and a frame 7 is radially projected. A coil 3 is wound on the frame 7, and a slot 4 for containing a condenser 5 for eliminating noise is formed between the coils 3. The condenser 5 is formed in a cylindrical shape, and projected at one bottom with two terminals 12. A commutator base 13 is press-fitted to the shaft 1, and a commutator 10 is fixed. The terminal 12 are electrically connected to the cummutator 10, and the other terminal 12 is electrically connected to the supporting ring 14 which is mounted on the outer periphery of the core 2. The condenser 5 is held by a pair of holding pieces 15 which are projected from a ring 14, a compressing force F is applied along the axial direction of the shaft to the coil 3 in the state that the condenser 5 is contained in the slot 4, and deformed thereby effectively holding the condenser. |
