Sumitomo Precision Products Co., Ltd.

Kenji Ando

Keiji Miki

Shota Hanafusa

Ryo Yamaguchi

A heat exchanger () includes a heat exchanger () including a separate plate () and a first flow path () which is divided by a plurality of fin portions () and through which air flows, a fan (), and a control unit () that performs control for switching between a first mode where heat exchange is performed by forcing air to flow in and a second mode where heat exchange is performed by natural convection, the plurality of fin portions () are disposed in parallel at predetermined intervals (p), and are formed to have an undulating shape from one end () toward the other end () of the first flow path () in a width direction of the first flow path (), and the first flow path () is configured to be used in both the first mode and the second mode.

Heat exchange system, and fin structure of heat exchanger

A boiling cooler includes a boiling part, a condensing part arranged in a substantially horizontal direction with respect to the boiling part, and a connecting pipe that connects the boiling part to the condensing part. The condensing part includes a plurality of stages of refrigerant passages, a first external passage provided between the refrigerant passages, and a second external passage provided on an outer surface of at least one of an uppermost refrigerant passage and a lowermost refrigerant passage.

Boiling cooler

A cooling device includes a main body unit that has, on a surface thereof, a plurality of disposition regions where objects to be cooled are disposed, and a refrigerant flow passage provided in the main body unit. The refrigerant flow passage includes a first flow passage portion and a second flow passage portion. The first flow passage portion is formed at a predetermined position of overlapping a part of an inside of a predetermined disposition region to allow a refrigerant to pass therethrough more intensively than the second flow passage portion.

Cooling device

A heat sink which is mounted in a movable body and which is to be exposed to a traveling air stream generated while the movable body moves includes a base and a heat dissipating portion having a plurality of fins. At least in a front end portion of the heat dissipating portion, the heat dissipating portion includes a rectifying portion provided so as to extend across a predetermined area in a longitudinal direction in front portions of slit-shaped flow paths at an upstanding end (i.e., an end apart from the base).

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Amagasaki, Japan

Kenji Ando