A refrigerated display case includes a housing surrounding multiple shelves. An air distribution gap is defined behind the shelves. An air return passage is defined below the shelves. A radial cross-flow fan is disposed in a fan region of the air return passage. The radial cross-flow fan includes an output connected to the air distribution gap. A primary cooling microchannel heat exchanger is disposed in the fan region downstream of the radial cross-flow fan such that air output from the radial cross-flow fan to the air distribution gap passes through the primary cooling microchannel heat exchanger. A pre-cooler microchannel heat exchanger is disposed upstream of the primary cooling microchannel heat exchanger.

A refrigerator includes a crisper drawer, a frame, and a cover plate. The frame is configured to receive the crisper drawer. The frame defines at least one orifice that is configured to vent air from the crisper drawer to an exterior of the crisper drawer to control a humidity within the crisper drawer. The cover plate is secured to the frame and is at least partially disposed over the at least one orifice. The cover plate is configured to pivot relative to the frame between a first position and a second position. The cover plate restricts air flow out of the crisper drawer in the first position. The cover plate facilitates air flow out of the crisper drawer in the second position.

A refrigerator includes a crisper drawer, a frame, and a cover plate. The frame is configured to receive the crisper drawer. The frame defines at least one orifice that is configured to vent air from the crisper drawer to an exterior of the crisper drawer to control a humidity within the crisper drawer. The cover plate is secured to the frame and is at least partially disposed over the at least one orifice. The cover plate is configured to pivot relative to the frame between a first position and a second position. The cover plate restricts air flow out of the crisper drawer in the first position. The cover plate facilitates air flow out of the crisper drawer in the second position.

The invention relates to a crisper for preservation of food. The crisper (10) comprises a box (12) and a top (14)—When the crisper (10) is in a closed position the box (12) is air tight sealed to the top (14). A humidity control unit (16) is provided and adapted to allow humid air to exit the crisper via a 5 humidity control membrane (26) located in the humidity control unit (16).

A drying chamber assembly and a refrigerator are provided. The drying chamber assembly consists of a drawer-type sealing container which includes a drawer body, a drawer door and a drawer upper cover. The drawer body has an upward top opening. The drawer door is disposed at a front end of the drawer body and configured to push and pull the drawer body. The drawer upper cover is disposed above the drawer body to seal the top opening when the drawer body is completely pushed into the storage compartment and defines a drying space together with the drawer body and the drawer door. An airflow inlet is formed in the drawer body and configured to supply an airflow to the drying space. The drying chamber assembly directly covers and seals the top opening of the drawer body through the drawer upper cover.

A multilayer cover has a sandwich design for placement on a drawer of a vacuum drawer device, and the cover allows an evacuation of the drawer interior after sealing against the drawer. The cover has an outer air-tight cover layer and a core layer, recesses molded into the core layer and partly into one of the at least one outer cover layer, and an evacuation channel, a pump, and at least one sensor are arranged therein. The cover is to have a more compact design with a very low height, resulting in a minimal susceptibility to malfunction. This is achieved in that a printed circuit board is arranged on one of the at least one outer air-tight cover layers so as to face the core layer or the at least one outer air-tight cover layer is designed as a printed circuit board on which the core layer lies and on which the electric components integrated into the cover are mechanically held and are electrically connected.

A modular humidity control system is provided. An example system includes a body configured for attachment with a food storage housing. The body may define a closed circuit air flow path for circulating air through the food storage housing. The system also includes a desiccant element secured within the closed circuit air flow path that removes moisture from the moisture-laden air passing through the closed circuit air flow path, and stores the removed moisture. The system further includes a regeneration system that monitors a saturation of the desiccant element. In an instance in which the saturation of the desiccant element exceeds a saturation threshold, the regeneration system may evaporate at least a portion of the moisture stored by the desiccant element.

In an air composition adjustment device configured to adjust composition of air in a target space, an air circuit configured to supply air having adjusted composition to the target space is provided with a first passage through which outside air is introduced into an adjuster, and a second passage which is branched from the first passage and through which outside air is introduced into the sensor, and the second passage is provided with a moisture removal portion configured to remove moisture in air introduced into the sensor. This reduces a risk of a failure of the sensor due to contact of the sensor with moisture passed through the passage introducing outside air into the sensor.

Provided in the present application are an air duct system and a refrigeration appliance provided having the same. The air duct system comprises a drying system and a cooling system arranged in cooperation with each other, the cooling system has an evaporator and an air return port and an air supply port arranged on the two sides of the evaporator, and the drying system is disposed between the air return port and the evaporator, and comprises an air compressor and an air storage tank connected to each other; the air discharged by the air return port passes in sequence through the air compressor and the air storage tank and then flows to the evaporator, so that the air passing through the evaporator is dried, avoiding the problems of frosting and low efficiency.

In an insulator including an adsorbent configured to adsorb gas, an initial adsorption performance of the remaining gas inside the insulator using the adsorbent and a long-term adsorption performance of gas introduced into the insulator from the outside are improved so that the short-term performance and the long-term performance of the insulator can be simultaneously improved. An adsorbent that is a first part of an adsorbent included in a vacuum insulator is accommodated in a first space formed with an inside surface of a container, and an adsorbent that is a second part of the adsorbent is dispersed into a second space formed with an inside surface of an outer envelope and an outside surface of the container.