| 摘要 |
PURPOSE:To improve the assembling workability by using a choke coil having two windings for absorbing an electric noise, thereby reducing the number of pats. CONSTITUTION:A spark absorber 17 is connected with the segment 4a of a commutator 4 connected with a magnet wire 5. The first coil 19a and the second coil 19b of a choke coil 19 are respectively connected between brushes 10a, 10a' slidably contacted with the segment 4a and power input terminals 9, 9', and even if it is rotated in normal or reverse direction, it can absorb the electric noise. a DC power source 18 is connected with power source input terminals 9, 9'. |
