Ckd Praha, Oborovy Podnik

Petr Novak

Pavel Reichel

Michal Pellant

Pavel Kafunek

Jaroslav Zuna

Jindrich Kratina

Zdenek Zavazal

There is disclosed a liquid cooler for semiconductor power elements, the cooler having an external surface for bearing against the cooled element. The internal space of the cooler is formed so as to generate a whirling motion of the cooling medium supplied thereto.

Liquid cooler for semiconductor power elements

An arrangement including a hydraulic chamber for simultaneously regulating the contact pressure on a plurality of heat sinks associated with planar semiconductor devices to be cooled is described. A corresponding plurality of elongated rods coupled at their outer ends to one surface of each of the heat sinks extend outwardly through aligned holes in a boundary wall of the chamber. A plunger or other suitable device extends into the chamber through a second opening therein to vary the pressure on the compressible medium and thereby to urge the heat sinks against the associated semiconductive elements with a uniform pressure. Facilities are provided for electrically deactivating the semiconductive elements when the pressure within the chamber falls below a predetermined value.

Heat sink mechanism hydraulically propelled into contact with

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Prague, Czechia

Petr Novak