The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 2022
Filed:
Jan. 27, 2020
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A refrigerant channel of a heatsink includes an upwardly inclined channel formed by a side wall for downstream side of a first protruding portion and a side wall for upstream side of a second protruding portion. The upwardly inclined channel directs a flow of the refrigerant toward a base portion of the fin and causes the refrigerant to flow into the fin region, because of which more refrigerant flows to the base portion than to a leading end portion of the fin, and a high heat dissipating performance is obtained. Also, the fin is a columnar body whose sectional form perpendicular to a central axis is a regular hexagon, has rounded portions in corner portions, and has tapers on side faces. Six fins are disposed neighboring one fin, and a distance between fins is constant. Because of this, the heat dissipating performance further improves, and pressure loss can be reduced.