Self-refrigerating packaging and associated actuation device

摘要

The invention relates to self-refrigerating beverage packaging comprising: a first cavity ( 10 ) which contains a beverage; a second cavity ( 20 ) which forms a heat exchanger and which contains a refrigerating liquid and the vapour thereof; a third cavity ( 30 ) which contains means for the adsorption pumping of said vapour and means of connecting ( 40 ) the second cavity with the third cavity. The inventive packaging is characterised in that the second and third cavities are provided with a common wall ( 25 ) comprising the built-in connection means, and in that said connection means ( 40 ) comprise a check valve ( 42 ) which can withstand pressure exerted on the side of the second cavity and which opens under the effect of a force exerted on the side of the third cavity.