Power device for continuously detecting entry and exit positions
A power device for continuously detecting entry and exit positions. The power device comprises: a cradle having a cradle terminal formed therein; a breaker main body mechanically and electrically connected to or separated from the cradle terminal; and a girder and a truck which are transfer devices for moving the breaker main body to a connection or separation position, wherein the power device comprises: a position detection area portion formed on a side surface of the breaker main body; and a sensor module provided with a non-contact sensor which faces the position detection area portion and detects the position of the breaker main body by sensing a moving position of the position sensing area portion, the sensor module being fixedly coupled to the inner surface of the cradle.
1. A power device for continuously detecting each of extended and retracted positions of a circuit breaker body and for linearly detecting a position of the circuit breaker body, the power device comprising:
a cradle having a cradle terminal;
the circuit breaker body configured to mechanically and electrically connected to or disconnected from the cradle terminal;
a girder and a truck as a transporting means for moving the circuit breaker body to a contact position with cradle terminal or disconnection position from the cradle terminal;
a position detected area portion formed on at least one of both opposing side faces of the circuit breaker body; and
a sensor module fixed to at least one of both opposing inner side faces of the cradle, wherein the sensor module includes at least one sensor facing the position detected area portion so to detect a displaced position of the position detected area portion and thus to detect a position of the circuit breaker body, based on the detected displaced position,
wherein the position detection area portion has a length proportional to a moving distance of the truck to detect a linear position of the circuit breaker body over an entirety of a movement range of the circuit breaker body.
2. The power device of claim 1 , wherein the position detected area portion includes at least one of:
a position sticker having a shade varying in a movement direction of the truck;
a plurality of position protrusions, wherein at least one of a number, a shape, or a position thereof varies in the movement direction of the truck; or
a position inclined portion having one face inclined downwardly or upwardly in the movement direction of the truck.
3. The power device of claim 2 , the position detected area portion includes the position inclined portion, wherein the at least one sensor includes a contact type sensor configured to contact the position inclined portion and to detect a varying height of the position inclined portion and to detect the position of the circuit breaker body based on the detected varying height.
4. The power device of claim 1 , wherein the sensor includes at least one of a non-contact type sensor or a contact type sensor.
5. The power device of claim 4 , wherein the sensor includes the contact type sensor, the contact type sensor is embodied as a roller-type sensor having a roller rotating while being in contact with a side face of the both opposing side faces of the circuit breaker body.
6. The power device of claim 1 , wherein the device further comprises a cleaner disposed in front or rear of the sensor module configured to remove dust or foreign substance deposited on the position detected area portion.