Refrigerator including cryogenic freezing compartment

A refrigerator comprising:

• a main body comprising an inner case that defines a storage space;
• an evaporator located inside of the storage space and configured to supply cold air to the storage space;
• a grille panel assembly that comprises a grille panel and that partitions the storage space to separate an evaporator space from the storage space, the evaporator space being configured to accommodate the evaporator;
• a cryogenic freezing compartment that defines an insulation space within the storage space and that is configured to maintain a temperature of the insulation space less than a temperature of the storage space, the cryogenic freezing compartment defining a rear opening at a rear surface that faces the grille panel;
• and
• a thermoelectric module assembly located at the grille panel and configured to supply cold air to the cryogenic freezing compartment,
• wherein the thermoelectric module assembly comprises:
• a thermoelectric module comprising a heat absorption surface and a heat generation surface,
• a cold sink configured to contact the heat absorption surface and located in the cryogenic freezing compartment,
• a heat sink configured to contact the heat generation surface and located in the evaporator space,
• an insulation frame that is configured to receive the thermoelectric module and that is configured to thermally insulate the cold sink and the heat sink from each other;
• and
• a module housing that defines an accommodation groove configured to accommodate the heat sink, the insulation frame, and the thermoelectric module, the module housing comprising a spacer that extends from the module housing to the inner case and that is configured to maintain a space between the module housing and the inner case.