| 摘要 |
A liquid cooled circuit module comprises an integrated circuit package (43); a cover (40) having a rim (40d) which lies against the integrated circuit package (43), the cover (40) being shaped to form a passage for the liquid between the integrated circuit package (43) and the cover (40); a retaining mechanism (42), which is fastened directly to the integrated circuit package (43), and which includes a member (42a) that extends above the cover (40); and a spring (41), which is held in compression between the cover (40) and the retaining mechanism member (42); the spring (41) being adapted to press the rim (40d) against the integrated circuit package (43) with at least a predetermined minimal force which prevents leaks and at the same time not exceed a stress limit in the spring. In a second embodiment, a leak tolerant cooling system for cooling electrical components with a liquid comprises: a frame (10) holding a plurality of printed circuit boards (11), each of which have electrical components attached thereto; a top reservoir (14), mounted on the frame (10) above the boards, for holding the liquid at atmospheric pressure; a conduit (17a-17g) 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 (15), 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 (16) which opens in response to a valve control signal S2; a pump (19), coupled to the bottom reservoir, for sucking the liquid and air through the conduit at sub-atmospheric pressures in response to a pump control signal S1, and for simultaneously returning the liquid to the top reservoir; and a control circuit (25) 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. |
