US Patent 11933535 Vacuum adiabatic body and refrigerator

A vacuum adiabatic body according to the present invention includes a reinforcing member which is provided at a peripheral portion of at least one plate member so as to reinforce the strength of the plate member providing the vacuum adiabatic body; and a drain pipe which penetrates a third space except for the reinforcing member and through which water passes. According to the present invention, the strength of the vacuum adiabatic body increases and a penetration path of the defrost water can be secured.