Patent ID: 7683557
Filing Date: 2010-03-23
Classification: H02P

Abstract:
1. An interlocking device for controlling clockwise and counterclockwise rotation of a motor comprising: a power-supply terminal; an earth terminal; a clockwise rotation module including a clockwise rotation switch, a clockwise rotation trigger switch and a clockwise rotation relay, the clockwise rotation switch being connected with the power-supply terminal and the earth terminal respectively, and the clockwise rotation relay being connected with the clockwise rotation trigger switch and the earth terminal, respectively; a counterclockwise rotation module including a counterclockwise rotation switch, a counterclockwise rotation trigger switch and a counterclockwise rotation relay, the counterclockwise rotation switch being connected with the power-supply terminal and the earth terminal, respectively, the counterclockwise rotation trigger switch being connected with the counterclockwise rotation switch, the counterclockwise rotation trigger switch being connected with the clockwise rotation relay of the clockwise rotation module, the counterclockwise rotation relay being connected with the counterclockwise rotation trigger switch and the earth terminal, respectively, the counterclockwise rotation relay being connected with the clockwise rotation trigger switch of the clockwise rotation module; and a motor being electrically connected with the clockwise rotation relay and the counterclockwise rotation relay, respectively, by cooperating a cross connection of the clockwise and counterclockwise rotation relays with the clockwise and counterclockwise rotation trigger switch, the clockwise and counterclockwise rotation switch with the power-supply terminal and the earth terminal, a clockwise and counterclockwise rotation interlocking operation of the motor is controlled by the clockwise and counterclockwise rotation switches.