Liquid-type cooling apparatus and manufacturing method for heat radiation fin in liquid-type cooling apparatus

A liquid-type cooling apparatus in which there are provided a jacket including a coolant path through which a coolant flows and a heat sink that directly or indirectly makes contact with at least one heat-generating device and makes contact with the coolant flowing in the jacket and in which heat generated by the heat-generating device is transferred to the coolant through the intermediary of the heat sink so that the heat is radiated, wherein in the heat sink, the thermal resistance from a portion where the heat sink directly or indirectly makes contact with the heat-generating device to a portion where the heat sink makes contact with the coolant is set to be a value that is different from the thermal resistance at a different position in the flowing direction of the coolant.

A liquid-type cooling apparatus in which there are provided a jacket through which a coolant flows and a heat sink that makes contact with the coolant flowing in the jacket and in which heat generated by a heat-generating device is transferred to the coolant through the intermediary of the heat sink so that the heat is radiated,

• wherein the heat sink includes a heat sink base member having a first surface portion that faces the inside of the jacket and a plurality of heat radiation fins that are provided on the first surface portion of the heat sink base member and make contact with the coolant flowing in the jacket, and
• wherein the plurality of heat radiation fins are inclined toward the downstream side of the coolant flowing in the jacket.