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:
Oct. 05, 2010
Filed:
Feb. 05, 2007
Axel Knauff, Münnerstadt, DE;
Axel Knauff, Münnerstadt, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
The invention relates to a cooling device for an electric machine, in particular, for an electric motor comprising a stator () and a rotor. According to the invention, axial channeled recesses () are provided on the outside of the stators (), in which a cooling tube or cooling hose may be introduced and/or which may be sealed by means of a cover () to give a cooling air channel, an electric motor with such a cooling device and a core sheet () for a lamination bundle of a stator (), the core sheet () comprising amongst other things a number of stator grooves (). The core sheet () comprises recesses () with a channel cross-section on the outer edge thereof. The invention further relates to an electric machine the stator () of which has a lamination bundle made up of a plurality of such core sheets (). The invention also relates to a production method for such electric machines. The cooling tubes or cooling hoses can be simply inserted in the half-open channeled recesses from without for cooling.