Abstract: A cooling device includes: a case equipped with a supply port for a coolant and a discharge port for the coolant and a laminated core disposed in the case, the laminated core comprising a plurality of punched plates, each with the same shape, and each punched plate including: a plurality of linear portions that extend in waveform shapes in a flow direction of the coolant and that are spaced apart in an amplitude direction of the waveforms, and linking portions that are spaced apart in an extension direction of the linear portions and that link the linear portions to one another in the amplitude direction, the punched plates being alternately disposed front-to-back and the linear portions being superposed over one another, and the linking portions of the superposed punched plates being disposed spaced apart in the extension direction.

Abstract: A cooling device includes: a case equipped with a supply port for a coolant and a discharge port for the coolant and a laminated core disposed in the case, the laminated core comprising a plurality of punched plates, each with the same shape, and each punched plate including: a plurality of linear portions that extend in waveform shapes in a flow direction of the coolant and that are spaced apart in an amplitude direction of the waveforms, and linking portions that are spaced apart in an extension direction of the linear portions and that link the linear portions to one another in the amplitude direction, the punched plates being alternately disposed front-to-back and the linear portions being superposed over one another, and the linking portions of the superposed punched plates being disposed spaced apart in the extension direction.

Abstract: A cooling device includes: a case that includes a supply port for supplying coolant to an interior of the case and a discharge port for discharging coolant at the interior of the case to an exterior of the case; fins that each have a plate shape, that are arrayed at the interior of the case at separations along a plate thickness direction, and that have coolant flowing between adjacent fins; a maintenance portion that is formed at the fins and that maintains a separation between the adjacent fins; and a restraint portion that is formed at the fins and that restrains relative movement of the adjacent fins being maintained at the separation by the maintenance portion.

Abstract: A cooling device includes: a case that includes a supply port for supplying coolant to an interior of the case and a discharge port for discharging coolant at the interior of the case to an exterior of the case; plural fins that each have a plate shape, that are provided an exterior of at separations along their plate thickness direction, and that have coolant flowing between adjacent fins; projecting portions that are respectively formed at the fins, that project out along the plate thickness direction of the fins, and that abut adjacent fins; and restraining members that are respectively inserted through insertion holes respectively formed in the fins, that pierce through the plural fins, and that restrain relative movement between adjacent fins.