Novares France

Valeo Siemens Eautomotive Germany Gmbh

Valeo Eautomotive Germany Gmbh

Cédric Ledieu

Julien Brodnik

Jean-Claude Labrosse

Maxime Balligand

Eric Kmiec

Ludovic Milluy

Nicolas Dargere

The electric motor () comprises: —a shaft () mounted so as to be able to rotate about an axis (X); —a rotor () and a stator () received in a housing (). The shaft () is engaged in an aperture in the front wall () and an aperture in the rear wall () of the housing (), with a front bearing () and a rear bearing () being interposed respectively. It comprises an inner channel () for a cooling fluid circulation and at least one hole () in communication with the inner channel and leading into a front inner space () or rear inner space () of the housing (). A deflector () that is fixed in relation to the shaft comprises a deflecting wall () that diverts the flow of cooling fluid entering the inner space from the hole towards the corresponding bearing.

Electric motor comprising a cooling fluid deflector

A rotor for an electric motor including: a rotor shaft rotatably mounted about an axis; a lamination stack mounted coaxially on the rotor shaft, the lamination stack including a plurality of inner cavities; a plurality of permanent magnets housed inside the inner cavities of the lamination stack; at least one flange mounted axially on the rotor shaft, at least one sensor fixed or integrated into the at least one flange, an electronic circuit electrically connected to the at least one sensor, in which the electronic circuit is secured to an electronics support fixed to an outer face of the at least one flange, the electronics support being configured to at least partially house one end of the rotor shaft.

Rotor for electric motor equipped with an electronic circuit

The invention relates to an electric motor () comprising a rotor () mounted on a shaft (), a stator () positioned around the rotor (), the stator () comprising a body formed by a stack of laminations () and winding overhangs () projecting axially from each side of the stator body, a front bearing () and a rear bearing () which are connected to one another, the front and rear bearings () forming an internal cavity in which the rotor () and the stator () are housed, wherein the rear bearing () is bell-shaped and covers a cylindrical part () of the front bearing () extending axially from an end wall () of the front bearing (), the rear bearing () forming, with the front bearing (), an internal duct () for the circulation of a first cooling fluid inside which duct a first cooling fluid circulates, the first cooling circuit entering the internal duct () via a first fluid-inlet duct () formed radially through the rear bearing () and exiting the internal duct () via a first fluid-outlet duct () formed radially through the rear bearing (), characterized in that the front bearing () has a projecting rib () extending radially towards an internal face () of the rear bearing (), said rib () acting as a separator for the internal duct (), the first fluid-inlet and fluid outlet ducts () opening respectively on each side of the rib (), and in that the electric motor () is additionally cooled by a second cooling fluid circulating through the stack of laminations () of the stator () and over the winding overhangs () of the stator (), the second cooling fluid being supplied via at least a second fluid-inlet duct (), the at least one second fluid-inlet duct () being at least partially formed through the rib () of the front bearing ().

Electric motor designed to allow a better removal of the heat generated when it is operating

A rotor for an electric motor includes: a rotor shaft rotatably mounted about an axis; a lamination stack coaxially mounted on the rotor shaft, with the lamination stack having first and second internal cavities and permanent magnets are housed inside the first internal cavities of the lamination stack. The rotor further includes a front flange and a rear flange coaxially mounted on the rotor shaft and axially arranged on either side of the lamination stack; wherein at least two of the second internal cavities each house at least one sound absorption element. The at least one sound absorption element is adapted to attenuate the vibrations and/or the mechanical and/or magnetic noises generated by the rotor during its operation within the electric motor.

Rotor for an electric motor incorporating sound absorption elements

A rotor including a shaft mounted around an axis of rotation; —a laminated core mounted coaxially on the shaft, the laminated core extending between a front side face and a rear side face. It includes first internal cavities, a plurality of permanent magnets housed inside the first internal cavities, a front flange in the form of discs and arranged on either side of the laminated core. The shaft is provided with an internal inlet channel for circulating a coolant. The front or rear flange is configured to form, with the front or rear side face, at least one front outlet channel or rear outlet channel inside which a coolant is circulated. The front or rear outlet channel connected to the inlet channel opens at an outlet opening at the outer periphery of the front flange or rear flange.

Rotor for an electric motor provided with a cooling circuit

A rotor for an electric motor includes a rotor shaft mounted for rotation about an axis; a lamination stack coaxially mounted on the rotor shaft, the lamination stack having internal cavities; permanent magnets housed inside the internal cavities of the lamination stack; and at least one flange mounted axially on the rotor shaft. The at least one flange includes at least one rod extending axially inside an orifice formed axially in the lamination stack. The at least one rod is provided with at least one rod sensor. An electric motor having a rotor of the aforementioned type is also related.

Rotor for an electric motor provided with rod sensors

Electric motor and drive system for heat transfer

A rotor for an electric motor includes a rotor shaft rotatably mounted about an axis; and a lamination stack mounted coaxially on the rotor shaft. The lamination stack includes inner cavities; permanent magnets housed inside the inner cavities of the lamination stack; and a front flange and a rear flange mounted coaxially on the rotor shaft and arranged axially on either side of the lamination stack. At least one amongst the front flange and the rear flanges is equipped with at least one sensor.

Rotor for an electric motor provided with sensors

A stator for an electric motor includes a stator body forming a ring, the inner face of which is provided with teeth delimiting two by two notches open towards the inside of the stator body; U-shaped conductor segments, partially inserted into the notches of the stator body; and an electrical connection component to electrically connect the conductor segments together. The stator further includes a case for circulating a cooling fluid having a first fluid circulation channel, called the inlet channel, and a second fluid circulation channel, the outlet channel, the inlet and outlet channels being fluidly connected by connecting channels. Each connecting channel is formed by a cavity through each conductor segment along its entire length, the central cavity extending from an inlet end to an outlet end, the inlet end opening into the inlet channel and the outlet end opening into the output channel.

Stator for an electric motor

The subject matter of the present invention is a sealing system configured to form a leak tight electrical connection on a face of an electrical equipment, said sealing system including:

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Mont Saint Eloi, France

Cédric Ledieu