Abstract: A rolling bearing device that can be mounted around a shaft of a rotary electric machine of axis X, and axially above a rotor assembly. The rolling bearing device includes a rolling bearing having an inner race and an outer race that are centred on the axis; a target holder which is fixed to the inner race and extends radially with respect to the axis beyond the outer race, and in a base extended by an axial lip, a target which is secured to the target holder and is able to cooperate with a detection means for tracking the rotation of the race about the axis. The base of the target holder includes at least one axially protruding tab designed to axially deform when the base bears against the rotor assembly once the rolling bearing has been mounted on the shaft.

Abstract: The invention relates mainly to a rotary electrical machine for a motor vehicle, comprising: a heat dissipater (65); two power modules (50) integrated in the heat dissipater (65), each comprising rectifier elements (53) which form three rectifier bridge arms (52), connection terminals (58) associated with the rectifier bridge arms (52), and a control unit which can control the rectifier bridge arms; and a connector (61) which establishes electrical connections, in particular between the terminals (58) for connection of the power modules (50) and the phase outputs of the rotary electrical machine.

Abstract: The invention mainly relates to a rotating electrical machine (10), in particular for a motor vehicle, comprising: —a heat sink (58) having at least one receptacle, —an electric module positioned in the receptacle and comprising at least one connection terminal, —a connector (55) comprising at least one track (54) electrically connected to the connection terminal and a receptacle (84) for receiving a connecting means, in particular a head (83) of a screw (74), ensuring the mechanical and electrical connection between the track (54) of the connector (55) and the heat sink (58), and —an anti-loopback air flow element (93) inserted between a bearing (18) of the rotating electrical machine (10) and the connector (55), characterised in that the anti-loopback air flow element (93) comprises at least one sealing plug (101) for the receptacle (84) for the connecting means.

Abstract: The invention relates mainly to a rotary electrical machine for a motor vehicle, comprising: a heat dissipater (65); two power modules (50) integrated in the heat dissipater (65), each comprising rectifier elements (53) which form three rectifier bridge arms (52), connection terminals (58) associated with the rectifier bridge arms (52), and a control unit which can control the rectifier bridge arms; and a connector (61) which establishes electrical connections, in particular between the terminals (58) for connection of the power modules (50) and the phase outputs of the rotary electrical machine.

Abstract: An architecture of interconnected electronic power modules for a polyphase rotary machine, includes electrically interconnected power modules (5) and a connector (6) including one or more layers formed by pluralities of conductive traces borne by plates, such as to connect the power modules (51 to 53) to one another and to electrical elements of the rotary machine. The power modules (51 to 53) include a plurality of connection elements (510 to 530) brazed directly to components of the power modules (51 to 53) and, in the upper part, to conductive traces of the connector (6). This architecture includes a heat sink (4) equipped with open cavities (41 to 43) for receiving the power modules (51 to 53). A polyphase rotary machine is also provided using such an architecture, in particular a dual three-phase alternator with synchronous rectification.

Abstract: A method for interconnecting electronic power modules of a polyphase rotary electric machine. The power modules are disposed in open cavities of a heat sink and comprise substrates on which are provided MOSFETs of a synchronous rectifier bridge and integrated control circuits. The method comprises the production of: a planar connector (6) including at least one layer of conductive traces (64); a plurality of interconnection elements (512) arranged in multiple geometric formations and ultrasonically welded or brazed (S2) directly to the substrates (51) and/or the MOSFETs; and openings (65) in the planar connector (6) allowing the free passage of the upper ends (5120) of the connection elements (512) and a mechanical contact with the conductive traces (64). The electrical connections are obtained by means of laser (8) transmission welding (S1) or electric resistance welding.

Abstract: An architecture of interconnected electronic power modules for a polyphase rotary machine, comprising electrically interconnected power modules (5) and a connector (6) including one or more layers formed by pluralities of conductive traces borne by plates, such as to connect the power modules (51 to 53) to one another and to electrical elements of the rotary machine. The power modules (51 to 53) comprise a plurality of connection elements (510 to 530) brazed directly to components of the power modules (51 to 53) and, in the upper part, to conductive traces of the connector (6). This architecture includes a heat sink (4) equipped with open cavities (41 to 43) for receiving the power modules (51 to 53). A polyphase rotary machine is also provided using such an architecture, in particular a dual three-phase alternator with synchronous rectification.

Abstract: An alternator includes a stator S, a rotor R and a transistor bridge, which form synchronous rectification. The synchronous rectification is in the form of an over-molded mechatronic housing (2), and the mechatronic housing includes an electronic power substrate (3) and power connection terminals (23), (24). Electronic chips (300A, 300B) are implanted on the electronic power substrate, and at least one of the power connection terminals is connected electrically to the electronic chip by means of at least a first soldered connection wire (300, 301, 302, 30B+, 30B?). According to one embodiment, the electronic power substrate is of the IMS, DBC or PCB type.

Abstract: A device for rectifying the current of a rotary electric machine comprising a bearing (50) with through openings (51) for a coolant, that comprises at least one module (100) including a holder (10, 16) for holding current rectifying members (93, 94) having the same phase as the machine, said holder (10, 16) including a heat sink (16) with vanes (18) at least partially covering an opening (51) in the bearing (50). A rotary electric machine including such a current rectifying device. Application: alternators of automotive vehicles with internal ventilation.

Abstract: An alternator includes a stator (S), a rotor (R) and a transistor bridge, which form a synchronous rectification. The synchronous rectification is in the form of an over-moulded mecatronic housing (2). The mecatronic housing includes power connection terminals (23, 24), and contains a plurality of electronic power substrates (30, 31, 32) which have the same architecture, and in each of which there is implanted at least a first electronic chip (300A, 300B) of the transistor bridge. According to one embodiment, the electronic power substrate is of the IMS, DBC or PCB type.

Abstract: An alternator includes a stator S, a rotor R and a transistor bridge, which form synchronous rectification. The synchronous rectification is in the form of an over-moulded mecatronic housing (2), and the mecatronic housing includes an electronic power substrate (3) and power connection terminals (23), (24). Electronic chips (300A, 300B) are implanted on the electronic power substrate, and at least one of the power connection terminals is connected electrically to the electronic chip by means of at least a first soldered connection wire (300, 301, 302, 30B+, 30B?). According to one embodiment, the electronic power substrate is of the IMS, DBC or PBC type.

Abstract: A device for rectifying the current of a rotary electric machine comprising a bearing (50) with through openings (51) for a coolant, that comprises at least one module (100) including a holder (10, 16) for holding current rectifying members (93, 94) having the same phase as the machine, said holder (10, 16) including a heat sink (16) with vanes (18) at least partially covering an opening (51) in the bearing (50). A rotary electric machine including such a current rectifying device. Application: alternators of automotive vehicles with internal ventilation.

Abstract: A polyphase electric turning machine such as an alternator or an alterno-starter, particularly for a motor vehicle. The machine comprises a stator surrounding a rotor inside a case; the stator comprises a three-phase star-shaped winding and a triangular three-phase winding whose outputs are connected to rectifier bridges which are parallel mounted between the ground and a common output terminal. The two windings are received together in the recesses of the stator. The number of star-shaped winding spires and triangular winding spires in the machine is selected in such a way that the number of spires of each winding is respectively 3.

Abstract: The assembly is characterized in that the casing (62) of the engine of the motor vehicle carries, fastened to it, an axially projecting sleeve (246), in that the crankshaft (11) is lengthened axially by an extension (111), which firstly penetrates into the interior of the sleeve (246), and secondly serves for fastening the flywheel(13) of the clutch, and in that a bearing (346) is interposed radially between the extension (111) and the sleeve (246), being located radially inwards of the rotor (6).

Abstract: A fiction clutch device comprising a flywheel with a front end designed to be fixed to a vehicle crankshaft (11) and a rear end in the form of a hollow-shaped reaction plate (4) with a central recess (39) externally defined by a friction surface (37) and a friction disc (20), including at its external periphery at least a friction lining (16) to be in contact with the reaction plate (4) friction surface (37). The friction lining (16) is integral with a support (21) elastically coupled via a torque damper (20a) to a central hub (15) designed to be interlocked in rotation with a driven shaft. The torque damper (20a) penetrates into the reaction plate (4) central recess (39) and the flywheel (13) bearing between its front and rear ends the rotor (6) of a rotating electric machine (2) comprising a fixed stator (5).

Abstract: The invention relates to a control and power module for an alternator-starter for a motor vehicle, connected between the alternator-starter (3), an on-board wiring network (Ua) and a ground line (GND) of the vehicle, and comprising: a transistor bridge with several branches (B1–B3), and a control unit for comparing a phase voltage (?) of the machine with a reference voltage (Ua, GND) and for controlling the transistors as a function of the result of the comparison, the control unit comprising: a driver (10, 20, 30) for each branch of the transistor bridge, the driver being connected close to the transistors of the branch, and a control circuit for controlling the drivers.

Abstract: A polyphase electric turning machine such as an alternator or an alterno-starter, particularly for a motor vehicle. The machine comprises a stator surrounding a rotor inside a case; the stator comprises a three-phase star-shaped winding and a triangular three-phase winding whose outputs are connected to rectifier bridges which are parallel mounted between the ground and a common output terminal. The two windings are received together in the recesses of the stator. The number of star-shaped winding spires and triangular winding spires in the machine is selected in such a way that the number of spires of each winding is respectively 3.

Abstract: The invention relates to a control and power module for an alternator-starter for a motor vehicle, connected between the alternator-starter (3), an on-board wiring network (Ua) and a ground line (GND) of the vehicle, and comprising: a transistor bridge with several branches (B1-B3), and a control unit for comparing a phase voltage (?) of the machine with a reference voltage (Ua, GND) and for controlling the transistors as a function of the result of the comparison, the control unit comprising: a driver (10, 20, 30) for each branch of the transistor bridge, the driver being connected close to the transistors of the branch, and a control circuit for controlling the drivers.

Abstract: The assembly is characterised in that the casing (62) of the engine of the motor vehicle carries, fastened to it, an axially projecting sleeve (246), in that the crankshaft (11) is lengthened axially by an extension (111), which firstly penetrates into the interior of the sleeve (246), and secondly serves for fastening the flywheel (13) of the clutch, and in that a bearing means (346) is interposed radially between the extension (111) and the sleeve (246), being located radially inwards of the rotor (6).

Abstract: The invention concerns a friction clutch comprising a flywheel (3) with a front end designed to be fixed to a motor vehicle crankshaft (11) and a rear end in the form of a reaction plate (4) with a central recess (39) externally defined by a friction surface and a friction disc coupled with a central hub designed to be interlocked in rotation with the input shaft of a movement gear box comprising a clutch housing, the flywheel (13) bearing between its front and rear ends the rotor (6) of a rotating electric machine (2) comprising a fixed stator borne internally by a strut designed to be interlocked with at least one of the vehicle engine-clutch housing (14) block (62). The invention is applicable to a motor vehicle.