Vertical or semi-vertical refrigerated display cabinet with a blowing shelf

A refrigerated display cabinet of a vertical or semi-vertical type with a blowing shelf, wherein said refrigerated display cabinet extends in length along a main axis and in depth along a secondary axis horizontally and transversely to the main axis, and comprises:

• a containment structure that defines a product display compartment and an access opening to the product display compartment and comprises a main air inlet mouth and a main air outlet mouth both in communication with the main display compartment;
• a channel that fluidically connects the main air inlet mouth with the main air outlet mouth so as to direct refrigerated air flow through the main air outlet mouth towards the main air inlet mouth along at least one portion of the access opening in the form of an air curtain, wherein said channel contains at least one evaporator connected to a refrigeration circuit and a plurality of fans, wherein said product display compartment is divided into an upper area comprising one or more shelves vertically overlapping each other and into a lower area that has a greater extension in depth than said upper area and is intended to be loaded with products with a step arrangement protruding frontally with respect to said one or more shelves, and wherein at least one of said shelves which separates said lower area from said upper area consists of the blowing shelf which:
• comprises an internal conduit fluidically connected to said channel at a fixing end of the blowing shelf to the containment structure, and
• is suitable to direct the refrigerated air flow in the product display compartment through a secondary air-emitting mouth obtained near a free end of said blowing shelf opposite the fixing end, wherein said main air outlet mouth and the refrigerated display cabinet are overall configured so that the refrigerated air flow forming the air curtain laps the free end of said blowing shelf, and wherein said blowing shelf comprises:
• a first deflector positioned at the free end so as to intercept the refrigerated air flow which forms the air curtain, the first deflector configured to deviate the intercepted refrigerated air flow from a vertical direction to a direction having a horizontal component, and to increase a local flow speed of the intercepted refrigerated air flow, to facilitate reducing turbulence and improving cooling efficiency in a stepped-loading area;
• and
• a second deflector positioned at an outlet of the secondary air-emitting mouth so as to intercept the refrigerated air flow emitted by said blowing shelf, the second deflector is being configured and oriented relative to said first deflector so that the refrigerated air flow emitted by the blowing shelf and deviated by the second deflector merges with the intercepted refrigerated air flow in has the same direction and with a matched flow speed, producing a combined laminar flow that travels in a horizontal direction extending towards the access opening of the display cabinet and past a front edge of the stepped-loaded area.