Robert Boschgmbh

Camilo Carrillo

Stephan Geise

Uwe Knappenberger

Karsten Kirchhoff

Armin Ploeger

Fabian Lange

Matthias Roepke

Birgit Reichert

Sebastian Stein

Sebastian Bruns

Karthick Govindasamy

Patrizia Schoellig-Alt

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

A housing for an electric machine may include an outer housing (), an inner housing () arranged in the outer housing () and an intermediate casing space () formed between the outer housing () and the inner housing () as seen in a radial direction with respect to a stator axis (). The outer housing and the inner housing () may be pot-shaped and in each case have a base () such that a base intermediate space () is formed between the base () of the outer housing () and the base () of the inner housing (). The housing may further include a plurality of cooling ribs () running in an axial direction in the intermediate casing space () such that the cooling ribs extend into the base intermediate space () and run in a radial direction in the base intermediate space ().

Housing for an electric 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

Stuttgart, Germany

Camilo Carrillo