Refrigerating apparatus
AssigneeSanyo Electric Co., Ltd.
InventorsYuichi Tamaoki, Yasushi Sakata
Life of this patent
Estimating the term…
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.
Claims9
A refrigerating apparatus which comprises an insulating door, an insulating frame formed of a composite structure of vacuum insulating panel and 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.
A refrigerating apparatus which comprises an insulating door, an insulating frame formed of a composite structure of vacuum insulating panel and foam insulating material, and a refrigerating apparatus for cooling goods stored in the insulating frame, the refrigerating circuits of the refrigerating apparatus being filled up with at least one refrigerant containing no chloride.
A refrigerating apparatus which comprises an insulating door, an insulating frame formed of a composite structure of vacuum insulating panel and foam insulating material, and a refrigerating apparatus for cooling goods stored in the insulating frame, a plurality of inner doors being provided on the inside of the insulating door.
A refrigerating apparatus which comprises an insulating door, an insulating frame formed of a composite structure of vacuum insulating panel and foam insulating material, and a refrigerating apparatus for cooling goods stored in the insulating frame, a refrigerating circuit of the refrigerating apparatus being filled up with at least one refrigerant selected from HFC refrigerants of R-134a, R-407D, R-404A and R-508.
A refrigerating apparatus which comprises an insulating door, an insulating frame formed of a composite structure of vacuum insulating panel and foam insulating material, and a refrigerating apparatus for cooling goods stored in the insulating frame, R-134a or a mixture of R-134a and n-pentane being used as a foaming agent for the foam insulating material.
A refrigerating apparatus which comprises an insulating door, an insulating frame formed of a composite structure of vacuum insulating panel and foam insulating material, and a refrigerating apparatus for cooling goods stored in the insulating frame, wherein there is provided a means for giving a temperature alarm when the temperature in the insulating frame goes over a predetermined temperature.
Dependencies are inferred from the claim text.