Evaporation device and control method thereof, and refrigerated showcase

摘要

The present disclosure relates to an evaporator, a control method thereof, and a refrigeration showcase, wherein the evaporator includes a heat exchange body (1), and the heat exchange body (1) has a dehumidification area (A) and a frost formation area along a first direction. The dehumidification region (A) is located on the intake side along the first direction, and the heat exchange body (1) has a heat exchange passage through which a refrigerant flows, and the heat exchange passage a plurality of first passage segments spaced apart along a first direction and extending along a second direction perpendicular to the first direction; and adjacent first passage segments in the located heat exchange passage. and a plurality of second passage segments communicating the same end of the dehumidification area (B), the density of adjacent first passage segments in the frost protection freezing area (B) being smaller than the density of the first passage segments in the dehumidification area (A). [Selection diagram] Figure 1