초록 ▼

A leak tolerant cooling system, for cooling electrical components with a liquid comprises: a frame holding a plurality of printed circuit boards, each of which have electrical components attached thereto; a top reservoir, mounted on the frame above the boards, for holding the liquid at atmospheric p

A leak tolerant cooling system, for cooling electrical components with a liquid comprises: a frame holding a plurality of printed circuit boards, each of which have electrical components attached thereto; a top reservoir, mounted on the frame above the boards, for holding the liquid at atmospheric pressure; a conduit, coupled to the top reservoir and the boards, for conveying the liquid in a downward direction from the top reservoir over the components, the conduit being airtight in the absence of a leak therein; a bottom reservoir, coupled to the conduit below the boards, for receiving the liquid plus any air due to leaks from the conduit, the bottom reservoir being airtight except for a valve which opens in response to a valve control signal; a pump, coupled to the bottom reservoir, for sucking the liquid and air through the conduit at subatmospheric pressures in response to a pump control signal, and for simultaneously returning the liquid to the top reservoir; and a control circuit for generating the pump control signal starting when the liquid in the bottom reservoir is at a predetermined high level and continuing until the liquid in the bottom reservoir drops to a predetermined low level due to air leaking into the conduit, and for generating the valve control signal as the complement of the pump control signal.

대표청구항 ▼

A leak tolerant cooling system, which cools electrical components with a liquid, comprising: a frame holding a plurality of said electrical components; a top reservoir, mounted on said frame above said components, holding said liquid; a conduit means, coupled to said top reservoir and said component

A leak tolerant cooling system, which cools electrical components with a liquid, comprising: a frame holding a plurality of said electrical components; a top reservoir, mounted on said frame above said components, holding said liquid; a conduit means, coupled to said top reservoir and said components, conveying said liquid in a downward direction from said top reservoir over said components; a bottom reservoir, coupled to said conduit means below said components, receiving said liquid from said conduit means as well as any air which happens to leak into said conduit means; and a control means, coupled to said bottom reservoir; said control means including: (a) a pump which sucks said liquid and said air through said conduit means at subatmospheric pressures and into said bottom reservoir in response to a control signal; (b) a means for generating said control signal beginning when said liquid in said bottom reservoir is at a predetermined high level and continuing until a certain amount of said liquid in said bottom reservoir is displaced with said air and reaches a predetermined low level; and (c) a valve positioned on said bottom reservoir above the liquid therein which opens when said pump is stopped and allows said air to be pushed out of said bottom reservoir by said liquid as it flows from said top reservoir through said conduit means and into said bottom reservoir due to gravity.