Browse Prior Art Database

240VA Safety Interlock

IP.com Disclosure Number: IPCOM000207975D
Publication Date: 2011-Jun-16
Document File: 3 page(s) / 49K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is an apparatus to prevent an end user from fully installing blade servers into a chassis without the top cover installed. The main component of the invention is a spring-loaded plunger on the rear bulkhead of the blade server which prevents the blade power connecters from seating when the cover is off.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 98% of the total text.

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240VA Safety Interlock

This invention provides an apparatus to prevent an end user from fully installing blade servers into a chassis without the top cover installed. If the top cover is not installed and the power connector was mated, then there would be hazardous energy accessible by the end user.

There have been prior designs that provide this safety function; however, they required space that was not available in this application. Also, they did not support horizontally mounted blades that are side-by-side since they had features that horizontally extended outside the envelope of the blade.

This design presented here is fully contained in the horizontal and vertical width of the blade and therefore does not have the same limitations.

The rear bulkhead in the blade server has a spring-loaded plunger than prevents complete installation of the server in the chassis when the top cover is removed. When the cover is off, the guide pins in the chassis will stub on the plunger preventing the blade power connectors from seating.

Figure 1: Spring-loaded plunger on the rear bulkhead

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The spring loaded plunger is actuated by a device on the top cover when the cover is seated. The lower position of the plunger has a hole in it that aligns with the chassis guide pins allowing the power connectors to seat.

Figure 2: Hole aligns with the chassis guide pins

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