Abstract: A stator including a ring having teeth and slots between said teeth that open radially outwards and material bridges, each linking two adjacent teeth to the respective base on the side of the air-gap, a yoke attached to the ring, and windings placed in the slots of the ring, at least some of the material bridges having at least on deformable zone that can be deformed during assembly of the yoke on the ring.

Abstract: The invention relates to a coil intended to be inserted in into a first and a second slot of a stator, the coil being wound in a plurality of successive turns, each turn comprising:—a first half-turn comprising a first slot portion configured to be inserted in into the first slot of the stator,—a second half-turn comprising a second slot portion configured to be inserted in into the second slot of the stator, the second half-turns each being connected to the first half-turn of the same turn and to the first half-turn of the next turn by junction portions on each side of the first and second slot portions, the junction portions of the coil stacking along at least two juxtaposed heads extending in mutually parallel junction planes.

Abstract: Rotor (30) for a rotary electric machine, including: at least one permanent magnet (1) having, in cross section, at least one large side (2a) and at least one small side (3a), a rotor body (33) including stacked sheets, the rotor body (33) including at least one recess (4) receiving the permanent magnet (1), the recess (4) being delimited by at least one face (5a) opposite the large side (2a) of the permanent magnet (1), at least one sheet (6) including at least one deformable tongue (7) connecting to the face (5a) of the recess (4) and extending into the recess (4), the deformable tongue (7) being angled and including a foldable portion (8) configured to be pressed against the small side (3a) of the permanent magnet (1).

Abstract: A stator (2) for a rotary electric machine (1), comprising:—a radially interior ring (25) comprising teeth (23) and slots (21) opening radially towards the outside and extending between the teeth, bridges of material (27) connecting two adjacent teeth to their base and defining the bottoms of the slots between these teeth,—coils (22) arranged in the slots, having electrical conductors arranged in an ordered fashion in the slots (21), and—a radially outer yoke (29) attached in contact with the ring, the yoke being formed of assembled sectors (30).

Abstract: A stator including a ring having teeth with slots there between, and bridges of material each connecting two adjacent teeth at their base on the side of the air gap and defining the bottom of the slot between these teeth. The bridges of material each having at least one region of reduced magnetic permeability that is in the form of at least one localized narrowing formed by a groove or a localized crushing of the material, and/or at least one opening with the width l of the bridge of material, and/or at least one localized treatment in the with l of the bridge of material, which locally reduces the magnetic permeability of the bridge of material, and windings placed in the slots of the ring.

Abstract: A stator including a ring having teeth and slots between said teeth that open radially outwards and material bridges, each linking two adjacent teeth to the respective base on the side of the air-gap, a yoke attached to the ring, and windings placed in the slots of the ring, at least some of the material bridges having at least on deformable zone that can be deformed during assembly of the yoke on the ring.

Abstract: A method for manufacturing a stator of an electrical machine. The method including: a toothed ring having teeth joined together by bridges of material and defining between them slots open radially toward the outside, windings produced outside of the slots, and a yoke configured to be attached to the toothed ring. The method also including attaching at least one piece of sheet-form insulation to at least a portion of each of the windings, inserting said winding portions with the insulation into the slots via a radial movement directed toward the inside of the slots, and assembling the yoke onto the radially exterior surface of the ring to close the slots radially.

Abstract: A stator for a rotary electrical machine including a radially interior ring having teeth and slots which are open radially toward the outside, extending between the teeth, bridges of material connecting two adjacent teeth at their base, and defining the bottom of the slot between these teeth, and a radially exterior yoke, attached in contact with the ring, the ring and the yoke respectively exhibiting first and second reliefs collaborating with one another and/or with one or more inserts, and windings placed in a distributed fashion in the slots.

Abstract: A method of manufacturing a rotor for rotating electrical machines, notably an alternator, the rotor including two magnet wheels defining between them at least one interpole space arranged to receive at least one magnet. At least one angular indexing mark is produced on at least one of the magnet wheels. At least one groove partially delimiting the interpole space is formed, by machining, on the magnet wheel while maintaining the magnet wheel in an angular position dependent on the angular indexing mark.

Abstract: A method for producing a rotor assembly for a rotating electrical machine, especially an alternator, the rotor assembly including two rotors defining between themselves at least one inter-rotor space suitable for accommodating at least one magnet structure, which includes at least one index mark. The magnet structure is positioned against at least two of the rotors, using the index mark to identify a direction of orientation of the magnetization of the magnet structure.

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 rotor (24) for a rotary electric machine (20), mainly for the automotive industry, has a front polar wheel (46N) and a rear polar wheel (46S). Each polar wheel (46N, 46S) includes claws (52) extending axially towards the other polar wheel (46N, 46S). Each claw (52) of the polar wheel (46N, 46S) is circumferentially interleaved between two claws (52) of the other polar wheel (46N, 46S). At least two interpolar gaps (62) are provided between the side faces (60) opposite two consecutive claws (52), and at least two members (68) defining a magnetic barrier are provided in two interpolar gaps (62) associated on either side of a predetermined claw (52D). The front longitudinal ends (72) of the two members (68) are connected by a connector (82) in order to define an open chain (80).

Abstract: A rotor (1) for a rotary electrical machine, which includes two pole wheels (2) having a series of axial claw poles (20) of a trapezoidal overall shape which extend axially from the extreme radial outer edge of the pole wheel (2a) toward the other pole wheel (2b), such that each pole claw (20a, 20b) of a pole wheel (2a, 2b) is situated in the space which exists between two consecutive claw poles (20a) of the other pole wheel (2b). The rotor (1) includes magnetic assemblies (3) in the interpole space (22). An assembly (3) is composed of at least one magnetic member (31) and at least one magnet (30), received in a groove (21) made in each of the facing edge faces of the two adjacent claw poles (20a, 20b). This has the advantage of increasing the cross-section for the flow of rotor flux towards the stator, and of enabling the same milling cutter as has already been used to make the grooves in the edge faces of the claw poles.

Abstract: The claw-pole-rotor shaft has a front end with a radially larger-sized section, two knurled regions known as crimping regions, intended to be assembled with the claw-pole rotor by local deformation of the material of the claw-pole rotor, and a centring region for centring the claw-pole rotor, the crimping regions being positioned on each side of the centring region while the centring region projects radially with respect to the crimping regions of the shaft, these themselves projecting radially with respect to the section of larger radial size at the front end of the shaft. The claw-pole rotor is characterized in that it is equipped with such a shaft while the rotary electrical machine is characterized in that it is equipped with such a rotor.

Abstract: A rotor (24) for a rotary electric machine (20), mainly for the automotive industry, that comprises a front polar wheel (46N) and a rear polar wheel (46S), each polar wheel (46N, 46S) including claws (52) extending axially towards the other polar wheel (46N, 46S), each claw (52) of a polar wheel (46N, 46S) being circumferentially interleaved between two claws (52) of the other polar wheel (46N, 46S), at least two interpolar gaps (62) being provided between the side faces (60) opposite two consecutive claws (52), and at least two members (68) defining a magnetic barrier being provided in two interpolar gaps (62) associated on either side of a predetermined claw (52D). The front longitudinal ends (72) of the two members (68) are connected by a connector (82) in order to define an open chain (80).

Abstract: A method for producing a rotor assembly for a rotating electrical machine, especially an alternator, the rotor assembly including two rotors defining between themselves at least one inter-rotor space suitable for accommodating at least one magnet structure, which includes at least one index mark. The magnet structure is positioned against at least two of the rotors, using the index mark to identify a direction of orientation of the magnetization of the magnet structure.

Abstract: A rotor (1) for a rotary electrical machine, which includes two pole wheels (2) having a series of axial claw poles (20) of a trapezoidal overall shape which extend axially from the extreme radial outer edge of the pole wheel (2a) toward the other pole wheel (2b), such that each pole claw (20a, 20b) of a pole wheel (2a, 2b) is situated in the space which exists between two consecutive claw poles (20a) of the other pole wheel (2b). The rotor (1) includes magnetic assemblies (3) in the interpole space (22). An assembly (3) is composed of at least one magnetic member (31) and at least one magnet (30), received in a groove (21) made in each of the facing edge faces of the two adjacent claw poles (20a, 20b). This has the advantage of increasing the cross-section for the flow of rotor flux towards the stator, and of enabling the same milling cutter as has already been used to make the grooves in the edge faces of the claw poles.

Abstract: A method of manufacturing a rotor for rotating electrical machines, notably an alternator, the rotor including two magnet wheels defining between them at least one interpole space arranged to receive at least one magnet. At least one angular indexing mark is produced on at least one of the magnet wheels. At least one groove partially delimiting the interpole space is formed, by machining, on the magnet wheel while maintaining the magnet wheel in an angular position dependent on the angular indexing mark.

Abstract: A rotating electrical machine rotor which comprises: a rotary shaft; two field spiders which have the same diameter ranging between 90 and 120 mm and which are mounted centred on the shaft, each field spider comprising a circular radial plate; prongs extending axially toward the other field spider so as to nest tangentially between two adjacent axial peripheral prongs of the other field spider; an interpolar tangential space left between the opposing parallel lateral faces of two consecutive prongs of each field spider; and at least one ferromagnetic interpolar element the width (Lf) of which is defined orthogonal to the lateral faces of the adjacent prongs. According to the invention, the active width (Lf) of the ferromagnetic element is between 5 mm and 6 mm.

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.