REFRIGERATION CYCLE DEVICE

A refrigeration cycle device (10) includes: a casing (40) that configures the outer contour of an outdoor machine (30), has a machine chamber (M) and a blowing chamber (F) formed therewithin, and has formed an introduction hole (45) for introducing outside air into the machine chamber (M); a partition plate (50) that partitions the interior of the casing (40) so as to demarcate the machine chamber (M) and the blowing chamber (F); a refrigeration cycle circuit, of which at least a portion is disposed in the machine chamber (M), and through which a combustible refrigerant circulates; and a blower (35) disposed in the blowing chamber (F). A blow-through hole (51) connecting from the machine chamber (M) to the blowing chamber (F) is formed in a bottom part of the partition plate (50). The outside air introduced into the machine chamber (M) from the introduction hole (45) flows through the blow-through hole (51) and into the blowing chamber (F), and by means of the blower (35), is sent outside the casing (40) from a blow-out opening formed in the blowing chamber (F).