Air guidance device for cooling a switch part of an...

Details Air guidance device for cooling a switch part of an... Air guidance device for cooling a switch part of an...

2007-04-03

2007-04-03

Lee, K. (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

C200S400000, C335S201000, C218S151000

Reexamination Certificate

active

10860271

ABSTRACT:
An air guidance device is for cooling a switch part of an electrical switch. It includes at least one air guidance element arranged at a distance from the switch part to be cooled, forming at least one air duct which runs vertically when the switch is in the installed position. The air duct includes an inlet area, which points downwards, for cooling air to flow therein, and having an outlet area, which points upwards, for cooling air to flow out thereof. In order to improve the heat dissipation, the air guidance element is shaped such that the inlet area tapers in the direction of the outlet area.

REFERENCES:
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patent: 6624375 (2003-09-01), Leone et al.
patent: 6838962 (2005-01-01), Leone et al.
patent: 6924721 (2005-08-01), Afshari et al.
patent: 38 39 269 (1990-05-01), None

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