| CPC F28F 3/042 (2013.01) [F28F 2255/00 (2013.01)] | 6 Claims |
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1. A cold plate that has therein a heat-transfer-medium flow space, through which a heat-transfer medium flows, and that releases, to the heat-transfer medium flowing through the heat-transfer-medium flow space, heat absorbed from an object to be cooled, the cold plate comprising:
a base plate provided with, on a surface, a heat absorbing surface that absorbs heat released from the object to be cooled and provided with, on another surface, a heat dissipation surface that releases, to the heat-transfer medium flowing through the heat-transfer-medium flow space, the heat absorbed by the heat absorbing surface; and
a cover plate that covers the heat dissipation surface of the base plate, wherein
the heat-transfer-medium flow space is formed between the heat dissipation surface of the base plate and the cover plate,
the base plate has a plurality of heat transfer portions that are provided so as to protrude from the heat dissipation surface toward the cover plate and that transfer, to the heat-transfer medium flowing through the heat-transfer-medium flow space, the heat released from the heat dissipation surface, and
concave portions are formed in a surface of the cover plate facing the heat-transfer-medium flow space, wherein tips of at least some of the heat transfer portions are inserted respectively into the concave portions, and each of the tips of said at least some of the heat transfer portions corresponds to its own concave portions,
the base plate has a base-side joining portion that is provided so as to extend along an outer periphery of the base plate and to which the cover plate is joined, and
the heat dissipation surface protrudes further toward the cover plate than the base-side joining portion.
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