초록 ▼

An open top refrigerated display case having an upper display portion for displaying refrigerated products and a lower storage portion for storing refrigerated products. A cooling mechanism cools both the display portion and storage portion. The cooling mechanism establishes a refrigerated air band

An open top refrigerated display case having an upper display portion for displaying refrigerated products and a lower storage portion for storing refrigerated products. A cooling mechanism cools both the display portion and storage portion. The cooling mechanism establishes a refrigerated air band which encircles the display portion. This refrigerated air band is established by circulating air through an air conduit which surrounds the display portion and is positioned above the storage portion of the display case. Mounted within the air conduit is a fan and a set of evaporation coils. Air is expelled from one end of the conduit at an outlet opening located near the top of the display case and such air is propelled across the opening in the display case towards the opposite end of the case where it is received by an inlet opening of the air conduit. In this manner, an air curtain is formed across the top of the display case. During a refrigeration cycle the air passing along this air band is cooled thereby cooling the display portion of the display case. In addition, air from the air conduit is diverted after it has passed through the evaporation coils into the lower storage portion where it is directed around the storage portion and flows into the air conduit where it is recirculated by the fan within such conduit.

대표청구항 ▼

An open top refrigerated display case comprising: an upper display portion for displaying products to be refrigerated; a lower storage portion for storing products to be refrigerated; cooling means for cooling both said display portion and said storage portion of said display case, said cooling mean

An open top refrigerated display case comprising: an upper display portion for displaying products to be refrigerated; a lower storage portion for storing products to be refrigerated; cooling means for cooling both said display portion and said storage portion of said display case, said cooling means including means for establishing a first band of air encircling said display portion, said means for establishing said first air band including a first air conduit passing around said display portion of said display case, said first air conduit having a first air outlet through which air can be expelled from said first air conduit and a first air inlet through which air can enter said first air conduit with said first air outlet and said first air inlet being located at opposite ends of said display case so as to direct air across the opening in the top of said display case and in alignment so that air leaving said first air outlet is directed towards and received by said first air inlet, first air circulating means for circulating air along said first air conduit during a refrigeration cycle such that air is expelled from said first air outlet and received by said first air inlet thereby establishing a first air curtain along the opening in the top of said display case, and refrigeration means arranged within said first air conduit for refrigerating the air of the first air band passing along said first air conduit during the refrigeration cycle of operation of said display case so as to form a refrigerated air band; and, first means for diverting a portion of the air of the refrigerated air band out of said first air conduit and enabling such diverted refrigerated air to pass from said first air conduit into said storage portion for cooling said storage portion, said first diverting means being located within said first air conduit at a location downstream of said first air circulating means and said refrigeration means.