Robert Boschgmbh

Karsten Kirchhoff

Uwe Knappenberger

Camilo Carrillo

Armin Ploeger

Stephan Geise

Fabian Lange

Birgit Reichert

Matthias Roepke

Sebastian Bruns

Sebastian Stein

The invention relates to a housing () for an electrical machine () and to an electrical machine () having such a housing (). The housing () comprises an inner wall () and an outer wall (), with a hollow space () therebetween for cooling the electrical machine () with a fluid. The housing () further has a sealing device () on a front face () of the housing (). The housing is particularly characterised in that the sealing device () comprises an annular sealing element () mounted between the inner wall () and the outer wall () so as to seal the front face, and in that the sealing device () comprises a deflection ridge () which projects from the sealing element () in the axial direction of the housing () and is at least partially arranged between the walls (), the deflection ridge () being designed to lead a cooling fluid in the hollow space (). A compact, economical and fluid-tight housing (10) can thus be advantageously provided.

Fluid-cooled housing for an electrical machine

The invention relates to a heat sink () for an electric machine, which heat sink has at least one cooling channel (), which adjoins an interior () surrounded by the heat sink (). The heat sink () is characterized in that the heat sink () is designed as a single-piece plate () bent into a closed ring, in the case of which plate two opposite abutting surfaces () are connected to each other in a fluid-tight manner in the region of a joint (), wherein a plurality of closed channels () extend in the plate (), which channels extend at an angle to the circumferential direction of the ring in such a way that adjacent channels () lead into each other in the region of the joint () and thus form a continuous, spiral channel, which extends in a plurality of spiral turns from an axially front end () to an axially rear end () of the annular heat sink (). In particular, the plate () of the heat sink () can be economically extruded and then brought into a shape suitable for the heat sink () by means of bending and axial offsetting. The heat sink () can be produced in a simple and economical manner and enables efficient cooling of an electric machine while requiring a minimal installation space.

Heat sink for an electric machine and method for producing said heat sink

Growing community of inventors

Munich, Georgia

Karsten Kirchhoff