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:
Apr. 12, 2022
Filed:
Jan. 31, 2019
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Srivathsan Sudhakar, West Lafayette, IN (US);
Feng Zhou, South Lyon, MI (US);
Ercan M. Dede, Ann Arbor, MI (US);
Paul T. Fanson, Howell, MI (US);
TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US);
Abstract
Embodiments described herein disclose a vapor chamber including a thermally-conductive evaporator wall, a thermally-conductive condenser wall and a volume therebetween defining a vapor core for transporting a vapor of a working fluid from the evaporator wall to the condenser wall. The outer surfaces of the evaporator wall and the condenser wall are configured to be in thermal contact with a plurality of heat sources and a heat sink respectively. The vapor chamber further includes a porous wick structure for holding and pumping the working fluid towards the plurality of heat sources. The wick structure comprises an evaporator-feeding wick having an inner surface in thermal contact with an inner surface of the evaporator wall. The evaporator-feeding wick comprises a first region having a higher permeability than at least a second region to form a permeability gradient, such that the working fluid has a uniform flow to the plurality of heat sources.