Temic Automotive Electric Motors Gmbh

Conti Temic Microelectronic Gmbh

Dietrich Von Knorre

Matthias Gramann

Wolfgang Thiel

Reinhard Orthmann

Antje Findeisen

Thomas Kramer

Ferdinand Friedrich

Hans-Joachim Fach

Hermann Pirner

Thomas Schencke

Thomas Susemihl

Viktor Dano

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.

Electric drive unit

The invention relates to a circuit configuration for connecting the stator windings of a brushless, electronically commutated motor, especially as a drive motor for an automobile fan drive. The configuration comprises a circuit board (,) with conducting paths, each of which is connected to the wire leads of the winding coils of each phase winding and one of which is connected to the ends of winding coils of all of the phase windings. This electronically commutated motor simplifies the interconnection of the stator windings in that the circuit board (,) includes an annular disk-shaped support plate (,) which, together with the stator assembly, is attached by a hub (,) to a bearing support pipe on the motor flange. The conducting paths are made of stamped conductor rails (,) which are fixed on the support plate (,), concentrically to the hub (,).

Circuit configuration for connecting up the stator windings of a brushless electronically commutated motor

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Ganderkesse, Germany

Dietrich Von Knorre