Abstract: A refrigerator includes a main body including a plurality of wall modules, a storeroom disposed inside the main body, and a door arranged to open or close the storeroom. The plurality of wall modules include a first wall module having a concave portion and a second wall module having a convex portion engaged with the concave portion. The convex portion includes an insulation filling space in which insulation is filled, and a fastening groove. A fastening member is inserted into the fastening groove so as to be fastened to the first wall module and the second wall module.

Abstract: A refrigerator includes a main body including a plurality of wall modules, a storeroom disposed inside the main body, and a door arranged to open or close the storeroom. The plurality of wall modules include a first wall module having a concave portion and a second wall module having a convex portion engaged with the concave portion. The convex portion includes an insulation filling space in which insulation is filled, and a fastening groove. A fastening member is inserted into the fastening groove so as to be fastened to the first wall module and the second wall module.

Abstract: An ice making machine comprising a housing, an evaporator connected to a freezing system, a base frame having a multiplicity of freezing cells for receiving water to be frozen, a freezing base plate provided with the evaporator and having freezing fingers formed on the lower surface of to be dipped into the multiplicity of freezing cells retaining the water to be frozen, and an air removing means circulating the water around the freezing fingers for removing air bubbles inside the water. The air removing means may comprise a multiplicity of nozzles spraying air onto the water contained in the freezing cells.