US 2025/0000278 A1Published application

Refrigerated display case systems

AssigneeHill Phoenix, Inc.

InventorsIllya Kajan, Edin Avdic, Jesse Comer, Hieu Nguyen

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Abstract

A refrigerated display case system includes a display case that defines an inner volume and a closed-circuit refrigeration system. The closed-circuit refrigeration system includes a condensing unit configured to sit on a top surface of the display case and including a compressor and a condenser assembly; a cooling coil and a fan configured to circulate an airflow from the inner volume through the cooling coil to cool the airflow; a liquid line coupled to an inlet of the cooling coil and to the condensing unit; and a rigid suction line coupled to an outlet of the cooling coil and to the condensing unit. The rigid suction line includes at least two bends between the outlet and the condensing unit and is configured to circulate a vapor phase of the refrigerant from the cooling coil to the condensing unit.

Claims26

Dependent claims

A refrigerated display case system, comprising:

a display case that defines an inner volume configured to store one or more perishable items;
and
a closed-circuit refrigeration system, comprising:
a condensing unit configured to sit on a top surface of the display case and comprising at least one compressor and at least one condenser assembly;
a cooling assembly that comprises at least one cooling coil and at least one fan configured to circulate an airflow from the inner volume through the at least one cooling coil to cool the airflow with a liquid phase of a refrigerant supplied from the condensing unit, the at least one fan further configured to circulate the cooled airflow to the inner volume to adjust or maintain a temperature of the inner volume;
a liquid line coupled to an inlet of the at least one cooling coil and to the condensing unit, the liquid line configured to circulate the liquid phase of the refrigerant from the condensing unit to the at least one cooling coil;
and
a rigid suction line coupled to an outlet of the at least one cooling coil and to the condensing unit, the rigid suction line comprising at least two bends between the outlet and the condensing unit and configured to circulate a vapor phase of the refrigerant from the at least one cooling coil to the condensing unit.

5 more elements

A method, comprising:

identifying a refrigerated display case system that comprises:
a display case that defines an inner volume;
and
a closed-circuit refrigeration system, comprising:
a condensing unit supported on a top surface of the display case and comprising at least one compressor and at least one condenser assembly;
a cooling assembly that comprises at least one cooling coil and at least one fan configured to circulate an airflow from the inner volume through the at least one cooling coil to cool the airflow with a liquid phase of a refrigerant supplied from the condensing unit, the at least one fan further configured to circulate the cooled airflow to the inner volume to adjust or maintain a temperature of the inner volume;
a liquid line coupled to an inlet of the at least one cooling coil and to the condensing unit, the liquid line configured to circulate the liquid phase of the refrigerant from the condensing unit to the at least one cooling coil;
and
a rigid suction line coupled to an outlet of the at least one cooling coil and to the condensing unit, the rigid suction line comprising at least two bends between the outlet and the condensing unit and configured to circulate a vapor phase of the refrigerant from the at least one cooling coil to the condensing unit;
and
moving the condensing unit from the top surface of the display case to a location at or below the top surface, the moving comprising bending the at least two bends without disconnecting the rigid suction line from the at least one cooling coil or the condensing unit.

8 more elements

Dependencies are inferred from the claim text.