Abstract: A cover for a rotating electric machine includes an axis of rotation (X), the cover being designed to be arranged on an inverter of the machine. The cover includes a skirt extending in a radial direction and forming a perimeter of the cover, the perimeter defining an inner portion of the cover and an open area arranged in the inner portion and comprising at least one axial opening. The open area extends over at least 50% of the inner portion of the cover.

Abstract: A cover for a rotating electric machine includes an axis of rotation (X), the cover being designed to be arranged on an inverter of the machine. The cover includes a skirt extending in a radial direction and forming a perimeter of the cover, the perimeter defining an inner portion of the cover and an open area arranged in the inner portion and comprising at least one axial opening. The open area extends over at least 50% of the inner portion of the cover.

Abstract: The invention mainly relates to a claw-pole rotor (2) for a rotating electric machine, characterized in that said rotor comprises a plurality of magnets (20) that are located between the poles and are made of neodymium-iron-boron having a dysprosium content of less than 2% by weight. By keeping the dysprosium content in the magnets of the rotating electric machine to a minimum, the invention thus does away with the problems associated with the limited dysprosium supplies and its cost.

Abstract: The invention relates mainly to a rotary electrical machine (10) comprising: a rotor (12) comprising permanent magnets (39); a stator (11) comprising a body (16) and a three-phase winding (25), characterised in that: the coupling of the coils (26) is of the triangle-series type; and the product of the number of turns of each coil (26), of the axial length of the stator body (16) expressed in mm, and of the inner diameter (L2) of the stator body (16) expressed in mm, is contained between 38998 and 39142; the number of turns being contained between 23 and 37, the axial length of the stator body (16) being contained between 17 mm and 27 mm, and the inner diameter (L2) of the stator body (16) being contained between 62 mm and 67 mm.

Abstract: The invention mainly concerns a stator (9) of a rotary electric machine, in particular intended for an electric compressor for a motor vehicle, said stator (9) comprising a body (16) having: —a yoke (28), —a plurality of teeth (27) angularly distributed on an inner periphery of said yoke (28), —a winding (17) comprising a plurality of coils (50), each coil (50) being formed by a wire (51) wound around a tooth (27), characterised in that a ratio between a diameter of a conductive portion of said wire (51) and an inner diameter of said stator (9) is of between 3% and 10%.

Abstract: The invention mainly relates to a rotor (10) of an electrical rotating machine, comprising: a rotor body (11), particularly formed by a laminated core, and a set of permanent magnets (22), and wherein a ratio between the largest thickness (L3) of a permanent magnet (22) of the set of permanent magnets, (22) measured in a radial direction, and the largest width of the magnet (22) of the set of permanent magnets (22), measured in an orthoradial direction, is at least equal to 30%.

Abstract: The invention relates mainly to a rotor (10) of a rotary electric machine having an axis of rotation (X) and including: a rotor body (11) made up of a packet of sheets, a set of permanent magnets (22), and a plurality of holes (13) made in the rotor body (11) in order to each allow the passage of a means (14) for attaching the sheets of the rotor body (11), wherein a ratio between a radial distance separating an axis of each attachment hole (13) relative to the rotation axis (X) and an external radius of the rotor body (11) is lower than 70%, in particular lower than 65%.

Abstract: The invention mainly relates to a rotor (10) of an electrical rotating machine, comprising a rotor body (11) and a set of permanent magnets (22), and wherein a ratio between a space occupied by all of the permanent magnets (22) and a space (V) defined by the rotor body (11) is higher than 30%, preferably higher than 50%.

Abstract: A voltage regulator device for a rotary electrical machine, notably an alternator and/or alternator-starter of a motor vehicle. The regulator device (14) comprises one or more electronic components (28) able to contribute to controlling the electric machine, a heat sink (30) having parallel heat-dissipating vanes (32). The heat sink is in a heat-exchange relationship with the component or components, and a support (34) on which the heat sink is positioned. The support is able to be mounted on the electric machine in such a way that the vanes of the heat sink can orient an air flow towards a region of depression provided between the support and the machine. A bearing of an electric machine is equipped with such a device and to an electric machine equipped with such a bearing.

Abstract: A voltage regulator device provided in a bearing of a rotary electric machine of a motor vehicle. The regulator device comprises a support and at least one electronic component configured to participate in the control of the electric machine. The support comprises a first part on which the at least one electronic component is mounted. The first part having an edge equipped with a brush holder provided with at least one brush-holder receptacle configured to accommodate a brush for making an electrical connection with a rotor of the electric machine. The device is configured to allow air to flow through the first part of the support, in contact with the brush holder. The device includes at least one air circulation slot provided through the support between the first part and the brush-holder. The support covers an air opening in the bearing.

Abstract: A stator for a multiphase rotary electric machine comprising a set of coils wound around teeth of the stator. The coil inputs are interconnected with other inputs, forming the neutral point and the coil outputs are interconnected with other outputs, forming one of the phases. Each phase is associated with a bundle of wires. Two bundle portions run around part of the circumference of the stator, connecting the outputs that make up the same phase. The stator comprises a set of insulating sheets protecting the wires. Each bundle is divided in a dividing zone near a connection of one or more bundles with an output of one coil belonging to the phase corresponding to said bundle. The insulating sheets extend around the circumference of the stator to an output of a next coil of a phase or between the outputs of two successive coils.

Abstract: Synchronous electric motor with permanent magnets comprising a wound stator (1) comprising stator teeth extending axially formed in a frame and a rotor (5) comprising a plurality of the magnets extending axially into a cylinder head (6), being embedded according to a flux concentration construction of the rotor (5) in which a first length (Ls1) of the rotor (5) is greater than a second length (Ls1) of the stator teeth and in which a ratio of the first length (Ls1) to the second length (Ls2) is lower than 1.3. The compressor comprises such an electric motor.

Abstract: A voltage regulator device for a rotary electrical machine, notably an alternator and/or alternator-starter of a motor vehicle. The regulator device (14) comprises one or more electronic components (28) able to contribute to controlling the electric machine, a heat sink (30) having parallel heat-dissipating vanes (32). The heat sink is in a heat-exchange relationship with the component or components, and a support (34) on which the heat sink is positioned. The support is able to be mounted on the electric machine in such a way that the vanes of the heat sink can orient an air flow towards a region of depression provided between the support and the machine. A bearing of an electric machine is equipped with such a device and to an electric machine equipped with such a bearing.

Abstract: A voltage regulator device for a rotary electric machine, notably an alternator and/or an alternator/starter of a motor vehicle, said regulator device (14) comprising a support (34) and one or more electronic components (28) able to play a part in controlling said electric machine, the support comprising a first part (60) on which the component or components is or are mounted, said first part having an edge (62) equipped with a brush holder (50) equipped with at least one housing, known as the brush housing, capable of housing a brush (15) for making an electrical connection with a rotor (3) of the electric machine possible. According to the invention, said device is configured to allow air to flow through said first part of the support, in contact with said brush holder.