Coupling device with improved thermal interface

Details Coupling device with improved thermal interface Coupling device with improved thermal interface

1991-06-13

1992-04-28

Kundrat, Andrew V.

Joints and connections

Utilizing thermal characteristic, e.g., expansion or...

403404, 285381, 411909, 292DIG66, F16C 900

Patent

active

051082144

ABSTRACT:
A coupling device with a thermal interface occuring along a curved vertical surface is disclosed. One curved surface is on a cold pin extending from a "cold" object and the other curved surface is on a hot pin extending from a "hot" object. The cold pin is fixed and does not move while the hot pin is a flexible member and its movement towards the cold pin will bring the two curved surfaces together forming the coupling and the thermal interface. The actuator member is a shape-memory actuation wire which is attached between the hot pin and the hot object. By properly programming the actuation wire, heat from the hot object will cause the actuation wire to move the hot pin towards the cold pin forming an effective thermal interface. The shape-memory actuation wire is made from a shape-memory-effect alloy such as Nitinol.

REFERENCES:
patent: 1623093 (1927-04-01), Chapin et al.
patent: 3783429 (1974-01-01), Otte
patent: 4294559 (1981-10-01), Schutzler
patent: 4872584 (1989-10-01), Sakai
"Shape-Memory-Effect Alloys: Basic Principles" vol. 6, 1986, Pergamon Press.

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