Refrigerator

The invention provides a refrigerator capable of ensuring heat insulation of a substrate storage box even under a thin wall. The refrigerator is provided with a refrigerator main body having a storage chamber; a machine chamber provided on the back side of the refrigerator body; a power supply board which is disposed in the machine chamber and supplies power to the compressor; a control board disposed in the storage chamber; and a control substrate storage box for storing the control substrate. The control substrate storage box and the inner box of the refrigerator main body are disposed so as to be separated from each other with an air insulation layer therebetween. 本发明提供一种即使在薄壁下也能够确保基板收纳箱的绝热性的冰箱。一种冰箱，具备：冰箱主体，具有储藏室；机械室，设置在冰箱主体的背面侧；电源基板，配置在机械室中，向压缩机供给电力；控制基板，配置在储藏室；以及控制基板收纳箱，收纳控制基板，控制基板收纳箱与冰箱主体的内箱隔着空气绝热层分离地配置。