Patent ID: 9551538
Date: 2017-01-24
CPC Classifications: F28D,G06F

Claim:
1. A sheet-type heat pipe comprising: at least two metal sheets including a first metal sheet and a second metal sheet; and a container that is formed by stacking together said metal sheets and is sealed by providing joints on at least a part of an outer circumferential portion thereof, wherein one of said metal sheets that serves as one of the outermost layers includes, on one side surface thereof, a vapor passage and grooves as wicks in a manner that said vapor passage does not overlap said grooves in a thickness direction of the container throughout the container in a planar view, said grooves comprising: first grooves that are arranged at a given interval and orthogonal to a side region of said vapor passage; and second grooves that are arranged at an interval larger than that of said first grooves and more distant from said vapor passage than said first grooves, said second grooves being outnumbered by said first grooves.