Light fixture with backup battery

Patent metadata

Field	Value
Publication number	US-11835200-B2
Application number	US-202117454049-A
Country	US
Kind code	B2
Filing date	Nov 8, 2021
Priority date	Nov 13, 2020
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

A light fixture includes a light housing defining an interior space. A light source is at least partially disposed in the interior space of the light housing. A driver housing is attached to the light housing and defines an interior space. A driver is disposed in the interior space of the driver housing for providing electricity to the light source. The driver is configured for connection to a main power source for energizing the light fixture. A battery is disposed in the interior space of the driver housing and is configured to provide backup power to the light fixture in the event of a loss of power from the main power source.

First claim

The invention claimed is:

1. A light fixture comprising:
a light housing defining an interior space;
a light source at least partially disposed in the interior space of the light housing;
a driver housing attached to the light housing and defining an interior space;
a driver disposed in the interior space of the driver housing for providing electricity to the light source, the driver being configured for connection to a main power source for energizing the light fixture;
a battery disposed in the interior space of the driver housing and configured to provide backup power to the light fixture in the event of a loss of power from the main power source;
a separator plate disposed in the interior space of the driver housing, the separator plate separating the interior space in the driver housing into an upper section and a lower section and acting as a heat barrier between components in the upper and lower sections;
a battery driver in the upper section; and
a single clamp securing the battery and battery driver to the separator plate.

2. The light fixture of claim 1 , further comprising a heat sink in thermal communication with the light source.

3. The light fixture of claim 2 , wherein the heat sink comprises a plurality of fins formed on the driver housing.

4. The light fixture of claim 3 , wherein the fins extend only partly along a height of the driver housing.

5. The light fixture of claim 1 , wherein the driver is disposed in the lower section and the battery is disposed in the upper section.

6. The light fixture of claim 1 , further comprising a cushion disposed between the clamp and at least one of the battery and battery driver.

7. The light fixture of claim 1 , wherein the battery driver is configured for controlling operation of one or more electrical components of the light fixture.

8. The light fixture of claim 1 , wherein the separator plate has a cutout along an outer peripheral edge of the separator plate for permitting wires to extend past the separator plate.

9. The light fixture of claim 1 , wherein the fixture is a hazardous location enclosure.

10. The light fixture of claim 1 , wherein the separator plate is formed from at least one of steel and plastic.

11. An enclosure assembly comprising:
a driver housing defining an interior space;
a driver disposed in the interior space of the driver housing for providing electricity to an electrical component;
a battery disposed in the interior space of the driver housing and configured to provide power to the electrical component;
a separator plate disposed in the interior space of the driver housing, the separator plate separating the interior space in the driver housing into an upper section and a lower section and acting as a heat barrier between components in the upper and lower sections;
a battery driver in the upper section; and
a single clamp securing the battery and battery driver to the separator plate.

12. The enclosure assembly of claim 11 , wherein the driver is disposed in the lower section and the battery is disposed in the upper section.

13. The enclosure assembly of claim 11 , wherein the separator plate provides a thermal barrier between the upper and lower sections.

14. The enclosure assembly of claim 11 , wherein the separator plate has a cutout along an outer peripheral edge of the separator plate for permitting wires to extend past the separator plate.

15. The enclosure assembly of claim 11 wherein the assembly is a light fixture.

16. The enclosure assembly of claim 11 , wherein the assembly is a hazardous location enclosure.

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Lokhande Prashant
• Kubsad Vinaya N
• Ring Christopher

Classifications

• F21S9/02 Primary

  the power supply being a battery or accumulator · CPC title

• F21V17/10

  characterised by specific fastening means or way of fastening (F21V17/02 - F21V17/08 take precedence) · CPC title

• F21V23/007 Primary

  enclosed in a casing · CPC title

• F21V29/773

  the planes containing the fins or blades having the direction of the light emitting axis · CPC title

• F21V23/023

  Power supplies in a casing (F21V23/003 takes precedence) · CPC title