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. 17, 2020
Filed:
Sep. 03, 2019
Seiko Epson Corporation, Tokyo, JP;
Katsuya Shimizu, Saku, JP;
Norio Imaoka, Shimoina-gun, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A cooling device includes an evaporator, a condenser, a vapor pipe, and a liquid pipe. The evaporator includes a housing having a reservoir, a wick disposed in the housing and retaining the working fluid in the liquid phase, and a groove member having a plurality of flow channels through which the working fluid in the vapor phase flows. The wick has first, second and third layers. The first layer has a plurality of first apertures, and is higher in thermal conductivity than both the second and third layers. The third layer transports the working fluid in the liquid phase in the reservoir to the second layer. The second layer has a plurality of second apertures corresponding to the first apertures, the second apertures having aperture area larger than corresponding one of the first apertures. The second layer transports the working fluid in the liquid phase to the first layer.