Arrangement for liquid cooling an electrical assembly using assisted flow

Patent 6938678 Issued on September 6, 2005. Estimated Expiration Date:

June 23, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Lucent Technologies Inc.

Application

No. 09602037 filed on 06/23/2000

US Classes:

165/80.4, Liquid cooled257/714, Liquid coolant361/699, Liquid417/436, TRANSVERSELY MOVABLE IMPELLING MEMBER (E.G., PADDLE)417/207, BY HEATING OF PUMPED FLUID361/695, Fan or blower361/704Thermal conduction

Examiners

Primary: Leo, Leonard R.

Foreign Patent References

4121545 DE 01/01/1993
28961 WO 07/01/1998

International Class

H05K007/20

Abstract

An arrangement for cooling an electronic assembly includes a circuit board, an enclosure member and at least one electromechanical actuator. The circuit board has a first surface, a second surface, and at least a first heat-generating element secured to the first surface. The circuit board further comprises at least one aperture extending between the first surface and the second surface. The enclosure member is secured to the circuit board so as to form a fluid tight barrier of a compartment defined at least in part by the enclosure member. The compartment includes a first subcompartment defined at least in part by the first surface and the enclosure member and a second subcompartment defined at least in part by the second surface and the enclosure member. The at least one electromechanical actuator is secured within the fluid type barrier and is operable to generate a flow movement in the direction of the at least one aperture when liquid is disposed in the fluid tight barrier.