Switchgear cabinet

Patent metadata

Field	Value
Publication number	US-11451017-B2
Application number	US-201917050922-A
Country	US
Kind code	B2
Filing date	Apr 9, 2019
Priority date	Apr 27, 2018
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

A switchgear cabinet is equipped with a pressure relief channel for discharging a fluid stream. A diffuser is arranged in the pressure relief channel. The diffuser has a mechanically stabilizing base plate with multiple first openings, which are covered by a meshwork with multiple second openings.

First claim

The invention claimed is:

1. A switchgear cabinet, comprising:
a pressure relief channel for discharging a fluid stream;
a diffuser disposed in said pressure relief channel, said diffuser having a mechanically stabilizing base plate formed with multiple first openings that are covered by a meshwork having multiple second openings;
said meshwork being embossed with a sawtooth embossment having alternately repeating declined and inclined embossment sections across the base plate;
said second openings including a first group of the second openings arranged on respective declined embossment sections that are arranged substantially transversely to a flow direction through said diffuser and a second group of the second openings arranged on respective inclined embossment sections that are arranged substantially parallel to the flow direction through said diffuser.

2. The switchgear cabinet according to claim 1 , wherein said second openings are disposed in front of said first openings in a flow direction through said diffuser.

3. The switchgear cabinet according to claim 1 , wherein said meshwork is formed so as to delimit at least one cavity under said base plate.

4. The switchgear cabinet according to claim 1 , wherein said base plate is arranged inclined to the flow direction through said diffuser.

5. The switchgear cabinet according to claim 1 , wherein the diffuser is arranged in a diverting knee so as to assist a change in direction of the fluid stream.

6. The switchgear cabinet according to claim 1 , comprising an encapsulated housing and a switchgear housing forming said pressure relief channel, and wherein said diffuser is arranged in a section of said pressure relief channel forming an oriel attached to said encapsulated housing.

7. The switchgear cabinet according to claim 1 , wherein said pressure relief channel has a pressure relief opening configured to direct the fluid stream into a vertical direction.

Assignees

• Siemens Energy Global Gmbh & Co Kg

Inventors

• Fedtke Tom
• Haberer Tommy
• Wahle Arno
• Rose-Poetzsch Alexander
• Bradler Christian

Classifications

• H02B1/30

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

• H02B13/025 Primary

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

• H02B13/045

  Details of casing, e.g. gas tightness · CPC title