Vacuum-breaking valve for refrigeration appliances

A vacuum-breaking valve for refrigeration appliances having a cabinet (G) closed by a respective door and refrigerated by a refrigeration system provided with a compressor (C), characterized in that it comprises:

• a tubular body (10) made of a thermally conductive material and mounted through one of the walls of the cabinet (G), in order to present an inner end (11), which is open to the inside of cabinet (G), and an outer end, (12), which is open to the outside of cabinet (G);
• a valve seat (30) mounted to the tubular body (10), in order to define a fluid communication between the inside and the outside of cabinet (G);
• a sealing means (40) mounted to the tubular body (10) and constantly biased towards a closed position, in which it is seated on said valve seat (30), blocking the fluid communication between the inside and the outside of cabinet (G), and movable towards an open position, spaced from the valve seat (30) and which is achieved when the pressure inside cabinet (G) is lower than the pressure outside said cabinet (G);
• and
• a heat collector (20) provided with a thermal radiation collecting surface (21) and mounted around the tubular body (10) adjacent to its outer end (12), so that said surface faces a heat source external to the cabinet (G).