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:
Mar. 29, 2022
Filed:
Dec. 11, 2017
Ziehl-abegg SE, Künzelsau, DE;
Frieder Lörcher, Braunsbach, DE;
Lothar Ernemann, Heilbronn, DE;
Ziehl-Abegg SE, Künzelsau, DE;
Abstract
The cooling device is intended for an electric motor and has a rotor cooling flange and a stator cooling flange (), of which one is rotatable with respect to the other. At least one of the two cooling flanges () is provided with cooling ribs () arranged distributed over its circumference. During operation of the electric motor, at least one of the two cooling flanges gives off heat to the surrounding air. At least some of the cooling ribs () of a heat-emitting cooling flange () have an undulating profile over their length. In this context, the surface area of a cooling rib () having an undulating profile is larger than the surface area of the associated straight reference rib.