Patent ID: 9704779
Date: 2017-07-11
CPC Classifications: H01L

Claim:
1. A semiconductor module cooler, comprising: a first plate mounted with a first semiconductor module; a jacket disposed under the first plate, and having a depression on a first plate side, and first and second through-holes separated from each other to be disposed at end portions of the depression respectively; an inlet-side header having a distribution portion disposed to cover the first through-hole from under the jacket, and an inlet-side pipe portion extending from the distribution portion in a longitudinal direction of the distribution portion; an outlet-side header having a water collection portion disposed to cover the second through-hole from under the jacket, and an outlet-side pipe portion extending from the water collection portion in a longitudinal direction of the water collection portion and in parallel to the inlet-side header; and a plurality of cooling fins disposed in the depression between the first plate and the jacket, and extending from above the distribution portion of the inlet-side header toward above the water collection portion of the outlet-side header, wherein the plurality of cooling fins includes an inlet-side cutout region at an inlet-side end portion above the inlet-side header and an outlet-side cutout region at an outlet-side end portion above the outlet-side header, and a height of the inlet-side cutout region and a height of the outlet-side cutout region are less than that of the cooling fins located at a central portion of the jacket.