Occupancy sensor assembly

• US 20090095889A1
• Filed: 12/15/2008
• Published: 04/16/2009
• Est. Priority Date: 05/27/2005
• Status: Active Grant

• Current Assignee: Hubbell Lighting Incorporated (Hubbell, Inc.)
• Original Assignee: Hubbell, Inc.
• Inventors: Williams, Jonathan D., Bender, R. Kurt, Hartnagel, Thomas J., Konradi, Vadim
• Granted Patent: US 8,456,318 B2
• Time in Patent Office: Days
• US Class Current: 250/221
• CPC Class Codes: G08B 13/1618 using ultrasonic detection means
• CPC Class Codes: G08B 13/19 using infrared-radiation detection systems G08B13/194 takes precedence
• CPC Class Codes: H01H 9/22 for interlocking between casing, cover, or protective shutter and mechanism for operating contacts explosion-proof cases H01H9/045; built-in fuses and interlocking mechanisms H01H9/104; by automatic release of circuit breakers H01H71/126

Abstract

An occupancy sensor is provided with a housing having an interior cavity. A switch is mounted in the interior cavity of the housing and configured for placement in the open and closed positions. A fascia cover plate may be positioned on the housing to enclose the interior cavity. The fascia cover plate has a fascia rib on an interior surface thereof. The fascia rib is arranged to interfere with the switch in the disabled state to prevent positioning of the fascia cover plate on the housing.

Claims

1. An occupancy sensor, comprising:

a housing with an interior cavity;

a switch configured for placement in the open and closed positions, the switch being mounted substantially in the interior cavity of the housing; and

a fascia cover plate configured for positioning on the housing to enclose the interior cavity, the fascia having a fascia rib on an interior surface, the fascia rib being arranged to interfere with the switch in the open state so that positioning of the fascia cover plate on the housing is prevented.

2. An occupancy sensor according to claim 1, further comprising a sensor module being mounted inside the interior cavity to support the switch.

3. An occupancy sensor according to claim 2, wherein the sensor module comprises a power board and a sensor board.

4. An occupancy sensor according to claim 1, further comprising at least one ultrasonic transducer mounted on a sensor board.

5. An occupancy sensor according to claim 1, further comprising an infrared sensor mounted on the sensor board.

6. An occupancy sensor, comprising:

an infrared sensor;

a mounting plate with a window to allow energy to pass through onto the infrared sensor, the mounting plate having a raised guide; and

a lens with a front wall and four side walls configured for positioning over the raised guide.

7. An occupancy sensor according to claim 6, wherein the front wall of the lens is substantially curved.

8. An occupancy sensor according to claim 6, wherein the guide comprises four substantially vertical walls.

9. An occupancy sensor according to claim 6, wherein the vertical walls extend to the bottom surface of the substantially curved front wall.

10. An occupancy sensor according to claim 6, wherein the mounting plate has a slot.

11. An occupancy sensor according to claim 6, wherein the mounting plate has at least one aperture.

12. An occupancy sensor according to claim 6, further comprising an ultrasonic transducer, and the ultrasonic transducer extends through the mounting plate.