A refrigerator may include: a refrigerator compartment, a convertible compartment, an evaporator disposed in the convertible compartment; and a grill pan assembly forming a space where the evaporator is disposed by dividing the inside of the convertible compartment. The grill pan assembly may include an insulating member, a convertible compartment fan, a refrigerator compartment fan, and an opening device formed at the insulating member from the convertible compartment channel to the refrigerator compartment channel.

An air-regulating freshness-preserving storage device comprises a container having a first storage space defined therein; and an oxygen removal device configured to remove a part or all of oxygen in air in the first storage space, so as to obtain the air rich in nitrogen, low in oxygen, and favorable for food preservation.

A refrigerator may include: a refrigerator compartment, a convertible compartment, an evaporator disposed in the convertible compartment; and a grill pan assembly forming a space where the evaporator is disposed by dividing the inside of the convertible compartment. The grill pan assembly may include an insulating member, a convertible compartment fan, a refrigerator compartment fan, and an opening device formed at the insulating member from the convertible compartment channel to the refrigerator compartment channel.

A combination light and pressure relief vent (10) is disclosed which includes a housing (11), a valve assembly (12), and a light assembly (13). The housing include a valve body (16), port tube (17), and an outside louver (18). The valve body has a low positive pressure exhaust port (40), a high positive pressure exhaust port (41), a low negative pressure intake port 44, and a high negative pressure intake port 45. The valve assembly includes a low positive pressure exhaust valve (57), a high positive pressure exhaust valve (59), a low negative pressure intake valve (61), and a high negative pressure intake valve (62). The light assembly includes a heat sink casing (68) which defines a heat chamber (37). The casing is coupled to an LED module (57) wherein heat generated by the LED module is transferred through the casing to the heat chamber to warm the valve assembly.

A combination light and pressure relief vent (10) is disclosed which includes a housing (11), a valve assembly (12), and a light assembly (13). The housing include a valve body (16), port tube (17), and an outside louver (18). The valve assembly includes a low positive pressure exhaust valve (57), a high positive pressure exhaust valve (59), a low negative pressure intake valve (61), and a high negative pressure intake valve (62). The light assembly includes a heat sink casing (68) which defines a heat chamber (37) and which includes a projection (80) extending into the heat chamber. The casing is coupled to an LED module (57) wherein heat generated by the LED module is transferred through the casing to the heat chamber to warm the valve assembly.

A combination light and pressure relief vent (10) is disclosed which includes a housing (11), a valve assembly (12), and a light assembly (13). The housing include a multi-radial positionable valve body (16), port tube (17), and an outside louver (18). The valve assembly includes a low positive pressure exhaust valve (57), a high positive pressure exhaust valve (59), a low negative pressure intake valve (61), and a high negative pressure intake valve (62). The light assembly includes a heat sink casing (68) which defines a heat chamber (37) and which includes a projection (80) extending into the heat chamber. The casing is coupled to an LED module (57) wherein heat generated by the LED module is transferred through the casing to the heat chamber to warm the valve assembly.

A refrigerated storage or display device includes a pressure relief valve in an insulated wall of an evaporator enclosure and a frosting chamber between the pressure relief valve and the evaporator assembly. The pressure relief valve is heated so that no frost forms on the valve. The frosting chamber can be defined by a baffle that directs air entering through the pressure relief valve to flow along the evaporator. When outside air enters through the valve, moisture forms as frost on the frosting chamber walls and the evaporator. A defrost heater and condensate removal system can remove the frost during periodic defrost cycles. The pressure relief system can be deployed on individual refrigeration system modules of a modular merchandiser kit so that the required amount of pressure relief capacity is automatically provided during field installation.

A refrigerator includes a cabinet, a first door, a second door, a partition wall, and a pressure relief valve. The cabinet defines first and second internal storage chambers. The first and second doors are disposed over the first and second internal storage chambers, respectively. The first and second doors are configured to transition between open and closed positions to provide access to and cover the first and second internal storage chambers, respectively. The partition wall separates the first internal storage chamber from the second internal storage chamber. The partition wall defines a channel that establishes fluid communication between the first and second internal storage chambers. The pressure relief valve extends between the first internal storage chamber and an exterior of the cabinet. The pressure relief valve is configured to open to vent air from the first internal storage chamber to the exterior of the cabinet.

A ventilation unit for a freezer chamber, with a conduit and at least one heating element, wherein in the conduit, at least in sections, an air-permeable filler material is disposed, as well as a freezer chamber with such a ventilation unit as well as methods for operating such ventilation unit.

An insulated cooler having an insulated bottom, an insulated peripheral wall, and an insulated lid is disclosed. The peripheral wall may extend up from the bottom to define an interior space of the cooler. The lid, pivotally attached to the peripheral wall, may be pivotable to a closed position engaging the peripheral wall to close the interior space. A vent passage may extend through the peripheral wall or the lid, communicating the interior space with an exterior of the cooler to prevent formation of a vacuum in the cooler. A retaining frame may be attached to the peripheral wall or the lid at a location on the peripheral wall or the lid corresponding to a location of the vent passage. An air-impermeable, water-impermeable material layer may block the vent passage. The material layer may be positioned between the retaining frame and the interior space of the cooler.