| 摘要 |
PURPOSE:To contrive the increase in the lifetime of the DC motor and the reduction in the trouble due to radio waves by dividing a brush slide into front and rear slide sections and interposing a resistor between the front and the rear slide sections, thereby suppressing an arc. CONSTITUTION:A slit 6 is, for example, provided at a brush slide 5 mounted at the free end of a brush leaf spring 4. The slide 5 is divided into the front slide section 5a and the rear slide section 5b, and the resistor is interposed between the front section 5a and the rear section 5b. In this manner since an arc is suppressed due to energy absorption of the resistor when the slide 5 passes the slits 2, the trouble due to radio waves can be reduced. |
