Electrical cabinet with vented exhaust

Patent metadata

Field	Value
Publication number	US-9608415-B2
Application number	US-201514801061-A
Country	US
Kind code	B2
Filing date	Jul 16, 2015
Priority date	Jul 25, 2014
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A vented exhaust system for an electrical cabinet housing high voltage equipment. Very short-time explosions can occur within the electrical cabinet that are the result of a short circuit of the equipment housed within. The vented exhaust system provides for a way to safely release the pressure and hot gasses that can result from the short circuit so that the cabinet does not explode.

First claim

What is claimed is:

1. A vented exhaust system for an electrical cabinet housing high voltage equipment comprising:
an electrical cabinet which is comprised of a front wall, a rear wall, a top wall, a bottom wall and two opposing side walls;
wherein each of the front wall, rear wall, top wall, bottom wall and two opposing side walls comprise an inner surface and an outer surface;
an inner plate which is fixedly attached to the inner surface of at least one wall of the electrical cabinet such that it is spaced a first distance from the inner surface of the at least one wall;
a plurality of louvers which protrude from the at least one wall of the electrical cabinet and are positioned immediately adjacent to the inner plate; and
an outer plate which is fixedly attached to the outer surface of the at least one wall of the electrical cabinet such that it is spaced a second distance from the outer surface of the at least one wall of the electrical cabinet, immediately adjacent and parallel to the plurality of louvers which are integrally contained within the at least one wall of the electrical cabinet.

2. The vented exhaust system for an electrical cabinet of claim 1 , wherein the inner plate is spaced a first distance from the inner surface of the at least one wall by spacers that are located on at least two locations of the plate.

3. The vented exhaust system for an electrical cabinet of claim 1 , wherein the inner plate is fixedly attached to the inner surface of the at least one wall of the electrical cabinet with threaded weld studs and nuts.

4. The vented exhaust system for an electrical cabinet of claim 1 , wherein the inner plate is open on all four sides of the plate to allow air flow on all four sides of the plate.

5. The vented exhaust system for an electrical cabinet of claim 1 , wherein the louvers are positioned such that they direct any airflow exiting the louvers in a downward direction.

6. The vented exhaust system for an electrical cabinet of claim 1 , wherein the louvers are fixedly contained within the at least one wall of the electrical cabinet about a horizontal axis such that they do not move.

7. The vented exhaust system for an electrical cabinet of claim 1 , wherein the louvers are movably contained within the at least one wall of the electrical cabinet about a horizontal axis such that they move in an outward direction into an open position from a closed position when sufficient airflow contacts the louvers from within the cabinet.

8. The vented exhaust system for an electrical cabinet of claim 1 , wherein the outer plate which is fixedly attached to the outer surface of the at least one wall of the electrical cabinet is welded to the at least one wall of the electrical cabinet along a top edge of the outer plate and two side edges of the outer plate such that the outer plate is closed on three sides and open on a bottom edge to allow airflow to exit the bottom edge.

9. The vented exhaust system for an electrical cabinet of claim 1 , wherein the inner plate, plurality of louvers and outer plate combination are positioned at multiple locations on at least one wall of the electrical cabinet.

10. A vented exhaust system for an electrical cabinet housing high voltage equipment comprising:
an electrical cabinet which is comprised of a front wall, a rear wall, a top wall, a bottom wall and two opposing side walls;
wherein each of the front wall, rear wall, top wall, bottom wall and two opposing side walls comprise an inner surface and an outer surface;
an inner plate which is fixedly attached to the inner surface of at least one wall of the electrical cabinet such that it is spaced a first distance from the inner surface of the at least one wall;
a plurality of louvers which protrude from the at least one wall of the electrical cabinet and are positioned immediately adjacent to the inner plate;
an outer plate which is fixedly attached to the outer surface of the at least one wall of the electrical cabinet such that it is spaced a second distance from the outer surface of the at least one wall of the electrical cabinet, immediately adjacent and parallel to the plurality of louvers which are integrally contained within the at least one wall of the electrical cabinet; and
wherein the inner plate, plurality of louvers and outer plate combination are positioned at multiple locations on at least one wall of the electrical cabinet.

11. The vented exhaust system for an electrical cabinet of claim 10 , wherein the inner plate is spaced a first distance from the inner surface of the at least one wall by spacers that are located on at least two locations of the plate.

12. The vented exhaust system for an electrical cabinet of claim 10 , wherein the inner plate is fixedly attached to the inner surface of the at least one wall of the electrical cabinet with threaded weld studs and nuts.

13. The vented exhaust system for an electrical cabinet of claim 10 , wherein the inner plate is open on all four sides of the plate to allow air flow on all four sides of the plate.

14. The vented exhaust system for an electrical cabinet of claim 10 , wherein the louvers are positioned such that they direct any airflow exiting the louvers in a downward direction.

15. The vented exhaust system for an electrical cabinet of claim 10 , wherein the louvers are fixedly contained within the at least one wall of the electrical cabinet about a horizontal axis such that they do not move.

16. The vented exhaust system for an electrical cabinet of claim 10 , wherein the louvers are movably contained within the at least one wall of the electrical cabinet about a horizontal axis such that they move in an outward direction into an open position from a closed position when sufficient airflow contacts the louvers from within the cabinet.

17. The vented exhaust system for an electrical cabinet of claim 10 , wherein the outer plate which is fixedly attached to the outer surface of the at least one wall of the electrical cabinet is welded to the at least one wall of the electrical cabinet along a top edge of the outer plate and two side edges of the outer plate such that the outer plate is closed on three sides and open on a bottom edge to allow airflow to exit the bottom edge.

18. A vented exhaust system for an electrical cabinet housing high voltage equipment comprising:
an electrical cabinet which is comprised of a front wall, a rear wall, a top wall, a bottom wall and two opposing side walls;
wherein each of the front wall, rear wall, top wall, bottom wall and two opposing side walls comprise an inner surface and an outer surface;
an inner plate which is fixedly attached to the inner surface of at least one wall of the electrical cabinet with threaded weld studs and nuts such that it is spaced a first distance from the inner surface of the at least one wall with spacers and open on all four sides of the plate to allow air flow on all four sides of the plate;
a plurality of louvers which protrude from the at least one wall of the electrical cabinet and are positioned immediately adjacent to the inner plate and positioned such that they direct any airflow exiting the louvers in a downward direction;
an outer plate which is welded to the outer surface of the at least one wall of the electrical cabinet along a top edge of the outer plate and two side edges of the outer plate such that the outer plate is closed on three sides and open on a bottom edge and such that it is spaced a second distance from the outer surface of the at least one wall of the electrical cabinet, immediately adjacent

Assignees

• Thomas & Betts Int Llc

Inventors

• Cardin Daniel
• Boucher Yves
• Theoret Jean-Marc
• Thompson Bud
• Duchesne Yves
• Kungl Ferenc
• Lalancette Daniel

Classifications

• H02B13/025 Primary

  Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect · CPC title

• H02B1/30

  Cabinet-type casings; Parts thereof or accessories therefor · CPC title

• H02B1/303

  Bases or feet · CPC title

• H02B1/565

  for cabinets · CPC title