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:
Jul. 05, 2005
Filed:
Feb. 27, 2004
Thomas Hoppe, Schwabhausen, DE;
Thomas Hoppe, Schwabhausen, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
A primary part of an air-cooled electric motor, in particular a linear motor, includes a modular block with a winding body and windings housed in a sealed housing. Cooling air flows through cooling channels around the windings and through tooth gaps in the winding body. The primary part can be produced by coating the housing and a cover with a sealing composition and embedding the modular block at least partially in the sealing composition. Alternatively, the primary part can be produced by embedding the winding region of the winding body first in a first molding composition, and subsequently in a second molding composition which has a higher melting point than the first molding composition. The first molding composition is then melted and removed. The thereby produced cavities form gas inlets and outlets and gas flow paths for air cooling the interior of the primary part.