Ceiling fan with germicidal capabilities
A fan for generating germicidal light is disclosed, which may be adapted to mount to a ceiling. The fan includes a hub connected to a plurality of fan blades. A motor is adapted to rotate the hub. A support is adapted to support the hub and motor from the ceiling. A lighting module may include a tray adapted to receive the support, the tray including one or more lights for providing ultraviolet germicidal light. The light may be provided by LEDs on a circuit board adapted for positioning around the support without dismounting the support from the ceiling, such as one comprised of wedge-shaped segments. The modular circuit board may form part of an uplight module supported by a housing for the motor.
1. A fan adapted to be mounted to a ceiling by a support, comprising:
a hub connected to a plurality of fan blades;
a motor adapted to rotate the hub;
one or more lights connected to the fan for providing ultraviolet germicidal light; and
a controller for controlling an on/off condition of the one or more lights based on an indication that a fan speed is above a pre-determined amount;
an annular tray including a raised outer rim surrounding a recessed surface for supporting the one or more lights for providing ultraviolet germicidal light and a raised inner rim adjacent to an opening in the annular tray for receiving the support.
2. The fan according to claim 1 , further including a circuit for generating a signal indicative of a need to service the one or more lights based on a time of operation of the motor.
3. The fan according to claim 1 , wherein the one or more lights are provided on a circuit board positioned on the recessed surface of the annular tray.
4. The fan according to claim 3 , wherein the circuit board comprises an annular structure including a plurality of interconnected segments, each of the plurality of segments including at least one light emitting diode for generating ultraviolet germicidal light.
5. The fan according to claim 3 , wherein the circuit board is flexible.
6. The fan according to claim 3 , wherein the circuit board is C-shaped.
7. The fan according to claim 3 , wherein the circuit board comprises at least two semi-annular portions connected by a connector.
8. The fan according to claim 3 , wherein the circuit board includes one or more lights adapted for generating non-ultraviolet light.
9. The fan according to claim 3 , wherein the circuit board is adapted to be positioned substantially around the support without dismounting the support from the ceiling.
10. The fan according to claim 3 , wherein the circuit board comprises a plurality of semi-annular segments adapted to connect together to form an annular structure surrounding the support.
11. The fan according to claim 1 , wherein the recessed surface extends at an angle relative to a horizontal plane.
12. The fan according to claim 1 , wherein the annular tray includes a plurality of fins for promoting heat exchange.
13. The fan according to claim 1 , wherein the annular tray includes a stanchion adapted to engage the support, and further including a fastener for fastening the stanchion to the support.
14. The fan according to claim 1 , wherein the indication that the fan speed is above the pre-determined amount is provided by a light control board for monitoring a speed reference signal.
15. A fan adapted to be mounted to a ceiling, comprising:
a support for mounting the fan to the ceiling;
a hub connected to a plurality of fan blades;
a motor adapted to rotate the hub;
one or more lights connected to the fan for providing ultraviolet germicidal light; and
a controller for controlling an on/off condition of the one or more lights based on fan speed;
an annular tray including a raised outer rim surrounding a recessed surface for supporting the one or more lights for providing ultraviolet germicidal light and a raised inner rim adjacent to an opening in the annular tray for receiving the support.
16. The fan according to claim 15 , wherein the controller controls activation of the one or more lights based on an indication that a fan speed is above a pre-determined threshold.
17. The fan according to claim 15 , further including a circuit for generating a signal indicative of a need to service the one or more lights based on a time of operation of the motor.
18. The fan according to claim 15 , wherein the one or more lights are connected to a circuit board adapted to be positioned substantially around the support without dismounting the support from the ceiling.
19. The fan according to claim 15 , wherein the one or more lights comprise LEDs automatically turned on when the motor is operational.
20. The fan according to claim 15 , wherein the one or more lights are provided on a circuit board positioned on the recessed surface of the annular tray.
21. The fan according to claim 20 , wherein the circuit board comprises an annular structure including a plurality of interconnected segments, each of the plurality of segments including at least one light emitting diode for generating ultraviolet germicidal light.
22. The fan according to claim 21 , the recessed surface extends at an angle relative to a horizontal plane.
23. The fan according to claim 20 , wherein the circuit board comprises at least two semi-annular portions connected by a connector.