US 8,558,407 B2Granted

Elevator emergency LED lighting power supply assembly

AssigneeMan-D-Tec, Inc.

InventorsTerry Roy Mandy, Dalton John Mandy, Brandon Roy Mandy

Life of this patent

Estimating the term…

Loading patent…

Abstract

An elevator emergency LED lighting power supply assembly including an inverter that receives DC power from a battery and outputs backup power to LED lamps of an elevator lighting system. An LED driver is connected to the inverter, is connectable to an LED lamp of the elevator lighting system, receives AC power from the inverter, and outputs DC power sufficient to power an LED lamp. A relay is connected between the inverter and the LED driver, is connectable to a primary elevator electrical power supply, and allows AC power to flow from a primary elevator electrical power supply to elevator lighting system LEDs through the LED driver as long as AC power is available from a primary elevator electrical power supply. Upon loss of power from the primary elevator power supply the relay switches contacts and provides to the LED driver AC power received from the inverter.

Claims16

Dependent claims

An elevator emergency LED lighting power supply assembly for providing backup power to one or more LED lamps of an elevator interior illumination system, the assembly comprising:

a battery;
an inverter connected to and configured to receive DC power from the battery and configured to output AC backup power to an elevator lighting system;
an LED driver connected to the inverter, connectable to an LED lamp of the elevator lighting system, and configured to receive AC power from the inverter and to output DC power sufficient to power an LED lamp;
and
a first relay connected between the inverter and the LED driver, connectable to a primary elevator electrical power supply, configured to allow AC power to flow from a primary elevator electrical power supply to elevator lighting system LEDs through the LED driver as long as AC power is available from a primary elevator electrical power supply, and further configured to switch contacts upon loss of power from a primary elevator power supply so that the LED driver receives AC power from the inverter.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/013,382Filed 25 Jan 2011
Published: US 2012/0187852 A126 Jul 2012
Granted: 15 Oct 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H02J 9/06
In which the distribution system is disconnected from the normal source and connected to a standby source: with automatic change-over , e.g. UPS…
H05B 45/39
Switched mode power supply [SMPS]: circuits containing inverter bridges
H02J 7/61
Including safety or protection arrangements: against overcharge
H02J 7/825
Control of state of charge [SOC]: detection of fully charged condition