Low temperature storage cabinet
AssigneeSanyo Electric Co., Ltd.
InventorsYuichi Tamaoki, Yasushi Sakata
Life of this patent
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Abstract
A refrigerating apparatus improves the insulating effect of a refrigerating chamber which is maintained at ultra low temperatures by a twin refrigerating apparatus. A vertical ultra low-temperature freezer 1 is composed of an insulating frame with a composite structure of a vacuum insulating panel and a foam insulating material, an insulating door with a composite structure of vacuum insulating panels and a foam insulating material, and a twin refrigerating apparatus which cools goods stored in the insulating frame. Ultra low temperatures are produced by the twin refrigerating apparatus in which a high-temperature side refrigerant circuit and a low-temperature side refrigerant circuit are in cascade connection.
Claims10
A refrigerating apparatus which comprises an insulating frame formed of a composite structure of a vacuum insulating panel and a foam insulating material, an insulating door made up of a composite structure of vacuum insulating panels and a foam insulating material, and a refrigerating apparatus for cooling goods stored in the insulating frame, the refrigerating apparatus being constituted by a plurality of refrigerating circuits joined in cascade connection.
Dependencies are inferred from the claim text.