Assembly for switching electrical power
AssigneeGrundl und Hoffmann GmbH Gesellschaft fur Elektrotechnische
InventorsAndreas Gründl, Bernhard Hoffmann
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Abstract
The invention relates to an assembly for switching electrical power, wherein a semiconductor switch is arranged in a pressure-resistant vessel which is partially filled with an inert liquid in order to effect a fluid cooling of the semiconductor switch during operation, characterised in that the interior of the vessel is coupled with a cooling circuit, with at least one vapor line leading from the vessel to a radiator, and at least one liquid line leading from the radiator to the vessel, with the liquid line being arranged at least sectionwise within the vapor line and being extended from a connection point at the vessel into the interior of the vessel to such a length that its free end opens below the liquid level of the cooling liquid.
Claims10
An assembly for switching electrical power comprising:
- a semiconductor switch arranged in a pressure-resistant vessel comprising a liquid region containing an inert liquid in order to effect a fluid cooling of the semiconductor switch during operation, the vessel further comprising a vapour region for containing a vaporized form of the inert liquid;
- wherein:
- the interior of the vessel is coupled with a cooling circuit;
- with
- at least one vapour line leading from the vapour region of the vessel to a radiator;
- at least one liquid line leading from the radiator to the vessel;
- with
- the liquid line being arranged at least sectionwise within the vapour line and being extended through the vapour region of the vessel and into the interior of the vessel to such a length that its free end opens below a liquid level of the inert liquid.
An apparatus for switching electrical power comprising:
- a. a pressure-resistant vessel comprising a liquid region containing an inert liquid, and a vapour region for containing a vapourized form of the inert liquid;
- b. a semiconductor switch coupled to an interior of the pressure-resistant vessel, the semiconductor switch arranged in the pressure-resistant vessel such that the inert liquid provides cooling for the semiconductor switch;
- c. a vapour line coupled to the pressure-resistant vessel at a pressure vessel port;
- d. a liquid line extending through the vapour region of the pressure resistant vessel, wherein an outlet of the liquid line terminates within the inert liquid;
- and
- e. a radiator coupled to the vapour and liquid lines such that the radiator condenses vapour coming from the pressure-resistant vessel to the inert liquid and further such that the inert liquid that has been condensed in the radiator replenishes the inert liquid in the pressure resistant vessel.
Dependencies are inferred from the claim text.