Electrical switchgear comprising a ventilation device and ventilation device comprising two ventilation elements
US6827643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2003 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Sep 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B1/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical switchgear (ES) comprising at least one function module (FM, FM . . . ) having an encapsulated housing, and a decompression channel (DK) which is connected to the housing. Said decompression channel (DK) comprises a ventilation device (LV, LV . . . ) in at least one of its generated surfaces, said device having two wall-type ventilation elements (LE 1,2) which are successively arranged at a distance from each other and are provided with ventilation openings. One ventilation element (LE 1) is connected to the generated surface of the decompression channel (DK) in a fixed manner, and the other ventilation element (LE 2) can be moved in a guided manner against the fixed ventilation element (LE 1). The moveable ventilation element (LE 2) can be linearly displaced inside a guiding frame (FR) and the ventilation openings of the ventilation elements (LE 1,2) are staggered in relation to each other. The moveable ventilation element (LE 2) comprises spring-type catch elements (RE) with which engaging openings (EO 1,2) are associated in the guiding frame. Such switchgears are used in connection with energy supply and distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.