Ebm-papst Mulfingen Gmbh & Co Kg

Mark Heinze

Dieter Best

Jens Krotsch

Christian Hammel

Christian Pfaff

Martin Baer

Martin Baun

Tobias Ehmann

Erich Fiedler

Reinhard Stillger

Reinhold Gerner

Thilo Egner

A rotating electric machine () having a stator () in a housing () and a rotor () supported by a shaft (). The housing () circumferential wall () and first and second axially opposing end walls () support bearing flanges with bearings () for the shaft (). Two cooling fan impellers () are connected to the shaft (). An inner cooling fan impeller () positioned inside the housing () generates an inner cooling air circuit (A) inside the housing (). An outer cooling fan impeller () provided outside the housing (), generates an outer cooling air flow (B). The first end wall () is formed with a thermal conductivity of at least a specified value and has an outer cooling rib geometry () on its outer side facing the outer cooling fan impeller (), and an inner cooling rib geometry () on its opposing inner side.

Rotating electrical machine

The present invention relates to a clamping member for pressing power components () against cooling surfaces of the cooling flanges () of a housing, particularly for receiving an electronic circuit. The clamping member comprises a housing frame () having at least one receiving chamber for the cooling flange () and the power semiconductor () to be contacted with the cooling flange (), the receiving chamber being surrounded by the frame walls () of the housing frame. A pressure element () is disposed between a frame wall () and the power component () disposed opposite thereof, or the cooling flange () disposed opposite thereof. A separating gap, into which an expanding element () can be introduced on one side non-positively and/or positively such that the power component () is pressed against the cooling flange (), is provided between the pressure element () and the frame wall ().

Clamping part for pressing power components against a cooling surface

Growing community of inventors

Rot am See, Germany

Mark Heinze