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. 22, 2022
Filed:
Dec. 04, 2019
Volocopter Gmbh, Bruchsal, DE;
Tobias Vermeulen, Munich, DE;
Volocopter GmbH, Bruchsal, DE;
Abstract
An electric motor () is provided, preferably an internal rotor motor, having a housing () which is enclosed on all sides, except for a bushing for a drive shaft (). A stator () is arranged in the housing, and is connected to a wall () of the housing () in a thermally-conductive manner, wherein, externally to the wall (), a plurality of projections () are provided, which are oriented essentially parallel to the drive shaft (), and wherein, externally to the housing (), a fan wheel () is arranged on the drive shaft (), the vanes () of which, upon a rotation of the drive shaft (), considered longitudinally to said drive shaft (), pass over at least one region, in which region the projections () are arranged, such that a cooling air stream (KLS) is generated along the projections ().