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. 18, 2008
Filed:
Nov. 27, 2002
Viktor Dano, Erlangen, DE;
Hans-joachim Fach, Nuremberg, DE;
Ferdinand Friedrich, Heroldsberg, DE;
Matthias Gramann, Renchen, DE;
Reinhard Orthmann, Leonberg, DE;
Hermann Pirner, Sulzbach-Rosenberg, DE;
Thomas Schencke, Schoenow b. Berlin, DE;
Thomas Susemihl, Berlin, DE;
Wolfgang Thiel, Denkendorf, DE;
Dietrich Von Knorre, Ganderkesse, DE;
Viktor Dano, Erlangen, DE;
Hans-Joachim Fach, Nuremberg, DE;
Ferdinand Friedrich, Heroldsberg, DE;
Matthias Gramann, Renchen, DE;
Reinhard Orthmann, Leonberg, DE;
Hermann Pirner, Sulzbach-Rosenberg, DE;
Thomas Schencke, Schoenow b. Berlin, DE;
Thomas Susemihl, Berlin, DE;
Wolfgang Thiel, Denkendorf, DE;
Dietrich Von Knorre, Ganderkesse, DE;
Conti Temic microelectronic GmbH, Nuremberg, DE;
TEMIC Automotive Electric Motors GmbH, Berlin, DE;
Abstract
An electric drive unit includes an electric motor for driving a fan. The motor has an electronic control module. An impeller wheel for producing a working air flow is mounted by bearings on an axle of the electric motor. The hub of the impeller wheel has at least one preferably two walls enclosing a cooling space or cooling space portions. At least one cooling surface of a cooling body is in contact with components of the electronic control module and projects into the cooling space. A gap formed between the hub of the impeller wheel and a carrier section communicates with an inner hub space. Holes () communicating with the hub inner space are provided in at least one component of the electric drive unit. When the impeller wheel rotes a convection cooling air flow is established between the gap and the holes.