Bayerische Motoren Werke Aktiengesellschaft

B Ayerische M Otoren W Erke a Ktiengesellschaft

Daniel Loos

Dragoljub Duricic

Endre Barti

Zakaria El Khawly

Joerg Merwerth

Holger Ulbrich

Julian Blum

Florian Beck

Andreas Huber

Robert Lustig

Markus Lang

Manfred Siegling

Jerome Ragot

Thomas Becker

Berthold Schinnerl

Jan Sousek

Andreas Schleicher

Jan-Oliver Roth

Yann Tremaudant

Augusto Guccione

Sherif Zaidan

Andreas Mayr

Burghard Baier

Maria Bauer

Gerd Fleischer

Christian Kloninger

Florian Risch

Sefa Seyis

A rotor shaft of an electric motor, in particular of an electrically excited synchronous machine, is composed of a shaft body and a power transmission module, the shaft body having a tubular open end that faces the power transmission module and forms a seat in which an end of the power transmission module located closer to the shaft body is interlockingly accommodated in the seat.

Rotor shaft of an electric motor

A coil has a winding that is coated with an epoxy resin in at least some areas, wherein a ratio of a compressive strength of the epoxy resin to the tensile strength thereof at room temperature ranges between 2 and 5, the modulus of elasticity at room temperature is at least 5000 MPa, and at a glass transition temperature of the epoxy resin, the modulus of elasticity and the tensile strength have values amounting to at least 30% of the values at room temperature.

Coil and electrically excited synchronous machine

A rotor shaft for an electric machine includes a rotor shaft main body and a rotor shaft core which is arranged therein and which is connected to the rotor shaft main body. The rotor shaft comprises a substantially axially running cooling cavity configured to conduct a cooling fluid, and the rotor shaft core is composed of a different material than the rotor shaft main body.

Rotor shaft for an electric machine and electric machine

A rotor for an electrical machine has at least one groove, the at least one groove includes a groove bottom and groove walls. A separating element is provided between the groove walls, and extends along the groove. The separating element is arranged on the groove bottom, at least in sections, such that groove chambers are formed along the groove.

Rotor and method for producing a rotor

A pole shoe of an electric machine limits a winding surface of a rotor that can rotate about an axis of rotation. The pole shoe is connected to a pole web of the rotor. An outer side of the pole shoe, which faces away from the pole web in the connected state, has a first region having a substantially sinusoidal contour profile and a second region having a second contour profile. The second contour profile is different from the first contour profile and is formed in such a way that the winding surface in a circumferential direction of the rotor is lengthened with respect to a winding surface of a pole shoe having an outer side extending exclusively substantially sinusoidally.

Pole shoe, electric motor, and vehicle

The invention relates to a rotor for an electric machine, comprising at least one first () and a second () conductor end and a contact element, which provides a connection between the at least two conductor ends (), and wherein the contact element can be positioned along a rotor axis (R) of the rotor in such a way that the connection can be established in an intermediate position, which is offset away from the rotor in relation to an end position of the contact element.

A support device for a rotor of an internal-rotor synchronous machine of a motor vehicle includes a star disk, which is able to be arranged on the laminated core of the rotor between an end side of the laminated core and end windings of the rotor windings, and a support ring for encasing the star disk. The star disk has a ring carrier for arranging on a rotor yoke of the laminated core, supporting teeth, protruding radially from the ring carrier, for arranging on rotor teeth of the laminated core, and collar-type end pieces, protruding axially from ends of the supporting teeth, for arranging on pole shoes of the rotor laminated core. The end pieces of the star disk and the support ring have mutually complementary bayonet joint regions, which are designed to connect the star disk and the support ring in a form-fitting manner.

Support device for a rotor of a separately excited internal-rotor synchronous machine consisting of a support ring and a star disk

A method for producing a cage rotor for an asynchronous machine has the following steps: providing a laminated rotor core made of a plurality of stacked rotor laminations which each have a plurality of rotor lamination grooves distributed in the circumferential direction; placing rod-shaped wire bundles, which are each made up of a plurality of wires, into the rotor lamination grooves; rotating the individual rotor laminations relative to each other, thereby deforming the wire bundles; placing short-circuit rings on both end faces of the laminated rotor core, and connecting the wire bundles to the short-circuit rings.

Method for producing a cage rotor

An electrical synchronous machine is provided for a rail-free vehicle. The vehicle has drive wheels and the synchronous machine is designed to generate a torque, which propels the vehicle, at the drive wheels. The synchronous machine has a stator and a rotor which rotates around the stator, wherein the stator has a stator winding of at least three-phase construction for forming a rotating stator magnetic field, and wherein the rotor has at least one rotor winding which is designed for forming a rotor magnetic field. A method for at least partially circumferentially establishing a current-excited synchronous machine provides a rotor yoke, provides a large number of rotor poles, fastens the rotor poles to the rotor yoke for forming a rotor, provides a stator, and inserts the stator into the rotor.

Electrical synchronous machine and method for at least partially circumferentially producing an electrical synchronous machine

A rotor for an electrical machine has a rotor core with a center line, which forms an axis of rotation. The rotor core can be subdivided by a plurality of imaginary radial planes, which extend radially from the axis of rotation at regular angular intervals. For each radial plane, at least one pair of winding grooves is formed, which extend through the rotor core to either side of the radial plane with the radial plane serving as the plane of symmetry. A winding is arranged in each pair of winding grooves, in winding receiving areas of the winding grooves, which winding extends through the two winding grooves of the pair. Each winding groove is bounded in its winding receiving area on its side facing the assigned radial plane by a side face, which continues in a manner free from projections, in the sense of projections in a direction away from the radial plane, from the winding receiving area to the radially outer end of the winding groove.

Rotor for an electrical machine with push-on windings

An electrochemical energy storage apparatus, in particular a rechargeable lithium-ion battery, having at least one current collector device with at least one current conductor arm, and at least one energy storage cell which has at least one anode, one cathode and one separator. The separator touches the anode and the cathode at least in sections in, in each case, a separator contact area. The current conductor arm can be electrically conductively connected to, in each case, at least one anode or cathode by way of a current output conductor contact area. A surface normal on the current output conductor contact area and a surface normal on the separator contact area form an acute angle a. This angle a is selected from a range which is greater than 5&#xb0;, with preference greater than 15&#xb0;, preferably greater than 25&#xb0; and particularly preferably greater than 35&#xb0;, and furthermore the angle &#x3b1; is less than or equal to 90&#xb0;, with preference less than 75&#xb0;, preferably less than 65&#xb0; and particularly preferably less than 45&#xb0;.

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Munich, Germany

Daniel Loos