| 摘要 |
The present invention relates to a velocity-sensitive slip ring which includes: a stator which is a disk-shape cover and has an electrode at the center; and a rotor which has a cylindrical shape to which the stator is combined and includes a brush in contact with the electrode of the stator; and which delivers electric signals to the rotor. The brush of the rotor includes: a mount which fixes the cylindrical inner surface of the rotor with a circular rib and is formed by bending one side of the circular rib in the current direction; two supports which form penetration holes at both ends of the mount and are inserted into the penetration holes; a brush block of which both ends are combined to the two supports inside the circular rib of the rotor; a pendulum of which both ends are combined to the two supports outside the circular rib of the rotor; an elastic body which is inserted into the two supports between the brush block and the mount and provides elastic restoring force toward the center to the brush block; and a two-line brush which is formed toward the center of the rotor at the center of the brush block and touches the electrode of the stator. If the rotor rotates at high speed, the touch point of the brush is separated by the centrifugal force. If the rotor rotates at low speed, the touch point of the brush is restored by the restoring force of the elastic body. The present invention provides a velocity-sensitive slip ring capable of blocking electric connection at high speed higher than a certain level. |
