| 摘要 |
The electromotor (1) has a commutator (5) and brushes (10) which have a conductive section (11) and two springs (16). The two springs press the conductive section of the brushes in the commutator. One of the brushes has a mass, and the other brush has another mass. One of the brushes has a mass block, which is connected over an elastic damper (19) with the conductive section. |
