Concealed electrical door operator
View Patent ↗A door assembly includes a first door skin, a second door skin spaced apart from the first door skin and a door operator disposed between the first door skin and the second door skin. An arm extends from the door operator. The door operator includes a motor moving the arm to move the door between a closed position and an open position and between the open position and the closed position. A current sensor generates a current signal corresponding to the current to the motor. A position sensor in communication with the door arm generates a position signal corresponding to the position of the door relative to the frame. A controller communicates with the sensor and the motor. The controller controls a motor current to the motor in response to the current signal and the position signal.
1. A door assembly comprising:
a first door skin;
a second door skin spaced apart from the first door skin;
a door operator disposed between the first door skin and the second door skin; and
an arm extending from the door operator,
wherein said door operator comprises:
a motor moving the arm to move the door between a closed position and an open position and between the open position and the closed position,
a current sensor generating a current signal corresponding to a current to the motor;
a position sensor in communication with the arm generating a position signal corresponding to the position of the door relative to a door frame;
a controller communicating with the current sensor, the position sensor and the motor, said controller controlling a motor current to the motor in response to the current signal and the position signal, and
wherein the controller increases the motor current to obtain a predetermined movement speed,
the door operator further comprising a gear set, and a belt drive in communication with the motor and gear set, said gear set operating the arm in response to the belt drive, and
the gear set comprises a planetary gear set.
2. A door assembly as recited in claim 1 wherein the controller changes the motor current based on the position signal.
3. A door assembly as recited in claim 1 wherein the controller changes the motor current based on the position signal at least three times between the open position and the closed position.
4. A door assembly as recited in claim 1 further comprising a latch operator in communication with the controller, said controller controlling the motor current in response to a latch operator signal from the latch operator.
5. A door assembly as recited in claim 4 wherein the latch operator is disposed within the door.
6. A door assembly as recited in claim 1 further comprising an access controller in communication with the controller, said access controller enabling opening of the door.
7. A door assembly as recited in claim 6 wherein the access controller is disposed at least partially within the door.
8. A door assembly as recited in claim 1 further comprising a proximity sensor disposed between the first door skin and the second door skin, said proximity sensor generating a proximity signal corresponding to an object approaching the door, said controller controlling the motor current in response to the proximity signal.
9. A door assembly as recited in claim 1 further comprising an environmental sensor in communication with the controller, said environmental sensor generating an environment signal.
10. A door assembly as recited in claim 9 wherein the environmental sensor comprises at least one of a smoke sensor, a toxic agent sensor, a light sensor and a heat sensor.
11. A door assembly as recited in claim 1 wherein the door operator comprises a power source disposed between the first door skin and the second door skin.
12. A door assembly as recited in claim 11 wherein the power source comprises a battery.
13. A door assembly as recited in claim 11 wherein the power source comprises a rechargeable battery.
14. A door assembly as recited in claim 13 wherein the power source comprises a rechargeable battery in communication with a solar cell, said solar cell recharging the rechargeable battery.
15. A door assembly as recited in claim 1 wherein the controller generates a braking current when the movement speed is greater than a desired speed.
16. A door assembly as recited in claim 1 wherein the controller generates a braking current when the movement speed is greater than a desired speed for a predetermined position.
17. A door assembly as recited in claim 1 wherein a first end of the arm is rotatably coupled to the door assembly and a second end of the arm is slidably coupled within a channel coupled to the door frame.
18. A communication comprising:
a central controller; and
the door assembly as recited in claim 1 ,
wherein the door assembly comprises a communication interface for communicating with the central controller.
19. A door assembly as recited in claim 1 further comprising a proximity sensor disposed on the first door skin generating a proximity signal corresponding to an object approaching the door.
20. A door assembly as recited in claim 1 wherein the position sensor comprises an accelerometer.