JPS646690A - Refrigerator - Google Patents

Abstract

PURPOSE: To prevent water from entering from outside by lowering the outer-periphery wall lower edge of a control board accommodation box body than an outer box, and making higher an inner-periphery wall upper edge than the outer box and providing an air convection port between inner/outer-periphery walls and an air convection port also at a lid body opposite to it. CONSTITUTION: With a box body 27 for accommodating a control board 25, an outer- periphery wall lower edge 33a is lower than an outer box 21 and an inner-periphery wall upper edge 34b is higher than the outer box 21 while the box body 27 is fixed to the outer box 21 and an outer plate 23 via a guide 29. Also, an air convection port 35 is provided between an outer-periphery wall 33 and an inner-periphery wall 34 and at the same time an air convection port 38 is provided opposite to the convection port 35 also at a lid body 36 for blocking the box body 27. Therefore, heat generated from the control substrate 25 is circulated by convection with external air via convection ports 35 and 38 and water entering from the outside is dammed by an outer-periphery wall 33, the dammed water flows out of the gap between the lid body 36 and the outer box 21 and the convection port 38 of a lid body 36 and does not enter the control board 25. In this manner, with a simple structure, water intrusion can be prevented and also heat can be easily released from the control board.