WO2011039468A1 - Agencement de redressement de courant pour machine electrique tournante, notamment alternateur pour vehicule automobile, et machine electrique tournante comportant un tel agencement - Google Patents
Agencement de redressement de courant pour machine electrique tournante, notamment alternateur pour vehicule automobile, et machine electrique tournante comportant un tel agencement Download PDFInfo
- Publication number
- WO2011039468A1 WO2011039468A1 PCT/FR2010/052044 FR2010052044W WO2011039468A1 WO 2011039468 A1 WO2011039468 A1 WO 2011039468A1 FR 2010052044 W FR2010052044 W FR 2010052044W WO 2011039468 A1 WO2011039468 A1 WO 2011039468A1
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- dissipator
- cell
- connector
- hole
- arrangement according
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/22—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
- F16C37/002—Cooling of bearings of fluid bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
- H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
- H02K11/05—Rectifiers associated with casings, enclosures or brackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
Definitions
- the invention relates to a current rectifying arrangement for a polyphase rotating electrical machine with a bearing, in particular an alternator for a motor vehicle, of the type comprising a plate belonging to the bearing and provided with air inlet openings, a plate-shaped heat sink integral with the bearing and carrying first current rectifying elements, such as diodes, second current rectifying elements, such as diodes, carried by the bearing plate and a connector interposed between the heatsink and tray.
- the invention also relates to a rotating electrical machine comprising such an arrangement.
- FIG. 1 is an axial sectional view identical to FIG. 3 of document WO 02/093717 and FIG. 7 of document WO 02/029958, of a machine rotary electric generator in the form of a polyphase alternator with internal ventilation equipped with a rectifier arrangement 1 and at least one internal fan 102, 104 for cooling the alternator.
- the arrangement 1 comprises a connector 113 interposed between a heat sink 9 metal, called positive heat sink, which carries a first plurality of current rectifying elements, here diodes 8 called positive diodes, and a support member 3 metal, which carries a second plurality of current rectifying element, here diodes 10 called negative diodes.
- a voltage regulator assembly-brush holder shown partially, is implanted between the circumferential ends of the dissipator 9 as shown in Figure 1 of WO 02/093717.
- the machine comprises an axis XX of rotation, a central shaft 15, a rotor 13 integral with the shaft 15, a stator 12 surrounding the rotor 13, a casing carrying the stator and centrally rotating the shaft 15, whose axis of axial symmetry is coincides with the axis XX and a cover 27 perforated protection, which covers the arrangement 1 and the assembly 116.
- the housing comprises at least two flanges 16, 18, respectively called front bearing and rear bearing.
- the rotor 13 and the stator 12 are mounted inside the casing 16, 18.
- the casing thus houses the stator 12, which comprises a stator body 19 carrying a stator winding 23 whose ends, called chignons 39, are extend in axial projection on either side of the body 19.
- the bearings 16, 18 are here generally ring-shaped and hollow. They each comprise a bottom shaped tray oriented transverse to the axis XX and their outer periphery an annular flange generally axially oriented relative to the axis XX.
- the flanges each comprise an annular radial face of machined free end concerned 26, 28 defining a joint plane.
- the bearings 16, 18 are interconnected here by fixing screws 29.
- Each flange connects to the outer periphery of its plate having centrally a housing delimited by a cylindrical core for mounting the outer ring of a ball bearing 105, 106.
- the bearing 105 is in contact with the core of the bearing 18, while a capsule 60 is interposed radially between the core 6 of the bearing 16 and the bearing 106.
- the front and rear ends of the shaft 15 are each fitted into the inner ring of the bearing 105, 106 associated for rotational mounting of the shaft 15 and the rotor 13 carrying here an internal fan 102, 104 at each of its axial ends. .
- the brushes of the voltage regulator-brush holder assembly are intended to rub on two slip rings 17 fixed on the rear end of the shaft 15 of smaller diameter, while a pulley is secured to the front end of the the tree 15.
- the pulley is intended to receive a belt forming part of a movement transmission device driven by the internal combustion engine of the motor vehicle.
- Each plate and each rim of a bearing 16, 18 respectively comprises inlet openings of air and air outlet openings for the internal circulation of a coolant, here air. This circulation of air is carried out with the aid of the fans 102, 104 and allows the arrangement 1 to be cooled, the assembly 116, the bearings 105, 106 and the updos 39 of the stator 12 implanted above the fans 102, 104 equipped with blades.
- the bearings 16, 18 are metallic and therefore electrically conductive by being moldable material, here aluminum. They are intended to be fixed on a fixed part connected to the mass of the motor vehicle connected to the negative terminal of the battery.
- the body 19 of the stator 12 is constituted by an axial stack of transverse plates, which each comprise axially aligned notches, which open out at the inner periphery of the body 19 and receive electrically conductive axial strands of the coil 23 with intercalation of an insulator. notch.
- the electric winding 23 is, for each phase of the alternator, constituted for example by the winding in turns of an electrically conductive wire coated with an electrical insulator.
- the coil 23 comprises in each notch of the body 19 a bundle of electrically conductive elements, which axially pass through the notches and are extended outside the body 19 by junction strands which form the buns 39.
- welded pins are used mounted in the notches of the body 19, as in the documents WO-92/06527 and FR-A-2 819 117.
- the body 19 carries windings constituting the coil 23.
- These stator windings belong to the phases of the alternator. Each phase has one or two windings.
- the outputs 214 of these windings for example connected in a star or in a triangle, are connected to attachment to the connector 113 of the arrangement 1, thereby having connection hooks 114.
- the alternator of FIG. 1 is of the three-phase type and has a winding per phase.
- the three outputs 214 of these windings electrically pass through the plate 3 of the rear bearing 16 by means of an opening which the plate 3 has at its outer periphery. These three outlets are better visible in the document WO 02/29958, which also describes the elastic mounting of the body 19 of the stator 12 using a flat annular seal 46, thermoconductive resin 50 and buffers 34.
- the rotor 13 is here a claw rotor, which comprises a cylindrical excitation electric coil 62, which is carried by a tubular core 67 interposed between two plates 64 and 66 each having claws 68 and 70 respectively, which are angularly offset and which comprise at their outer periphery generally trapezoidal shaped teeth extending axially in the direction of the other plate 66 and 64.
- Each plate is fixed on the shaft 15 here by means of knurled parts of the shaft, one of which is used for fixing the core 67.
- the slip rings 17 are connected to the ends of the coil 62 by wire links passing behind the fan 104.
- permanent magnets are interposed between two claws 68, 70 to increase the power of the machine.
- the arrangement 1 is fixed on the rear bearing 16 and the support element of the negative diodes is constituted by the plate 3 of the bearing 16 constituting a heat sink called negative heat sink.
- the arrangement 1 comprises in this example three pairs of positive diodes 8 and negative 10.
- the positive diodes 8 are carried by the heat sink 9 here metallic.
- This dissipator 9, called positive heat sink is separated from the plate 3 by the connector 113 of an electrically insulating material, here plastic, overmolded on a set of flat electrical conductors, locally apparent.
- This connector 113 thanks to its conductors, forms with the diodes 10, 8 a current rectifier bridge belonging to the arrangement 1.
- the dissipator 9 and the connector 113 are axially juxtaposed and electrically insulated by nut studs 115 to the plate 3 of the bearing 16.
- the connector 113 is in contact locally with thicknesses, here chimneys, with tapped holes of the plate 3 provided for the screwing of the studs 115.
- the plastic cover 27 is snapped onto a threaded portion of the pins 115 as described in WO 01/69762.
- This dissipator 9 is provided with axial openings and fins for cooling the diodes 8, which are hotter than the diodes 10.
- the connector 113 is configured to allow free passage of air below the axial openings of the dissipator 9 in correspondence with the air inlet openings 7 of the bearing 16.
- the support element of the negative diodes is a separate negative heat sink and integral with the plateau of the bearing.
- the negative current rectification elements such as diodes or MOSFET-type transistors, are carried by the plateau of the bearing concerned of the alternator and the connector is interposed axially between the positive heat sink and the dissipator. negative heat.
- rectifier 1 rectifies the alternating current induced in the windings of the coil 23 of the DC stator to power consumers and recharge the battery of the motor vehicle.
- the voltage regulator acts on the coil 62 to limit the voltage in order to protect the consumers.
- a flow of air, generated by the rotation of the fan 104 in particular passes through the axial openings of the positive heat sink 9 and the air inlet openings 7 of the plate 3 to cool the arrangement 1.
- the dissipator 9 is cooled by its fins and openings mainly by convection.
- the positive sink has a more complex shape. It comprises in excess thickness a network of ribs and a plurality of holes. Its inner periphery is delimited by a rib constituting a ring portion. Its outer periphery has a tortuous shape.
- the present invention aims to further improve in a simple way the cooling of the current arrangement of the type indicated above.
- the arrangement is characterized in that the first current rectifying elements are each mounted at the inner periphery of the dissipator and are each located in a cooling cell delimited by a projecting peripheral wall located at the outer periphery of the dissipator and laterally by two protruding transverse walls extending from the outer periphery to the inner periphery of the dissipator and in that each cell, on the one hand is blind by being open at the inner periphery of the dissipator and secondly , has at least one outer hole circumferentially shorter than the peripheral wall of this cell and delimited by the inner periphery of the peripheral wall of this cell to create a continuity of material between the first current rectifying element and this peripheral wall and what a corridor of passage exists between two paro are transverse to two consecutive cells.
- the polyphase rotating electrical machine is characterized in that it comprises such an arrangement.
- the invention have increased the heat exchange surface while having a good cooling air passage, and a good mechanical strength and a dissipator generally plate-shaped with projecting transverse walls defining open blind cells at their inner periphery and closed at their outer periphery by a protruding peripheral wall for channeling the passage of air passing through the well localized external hole or holes.
- the heatsink is light.
- he has a simple shape and is of reduced circumferential size
- the first current rectifying elements operate at a temperature below 215 ° for an ambient temperature of 105 °.
- first economic current rectifying elements in particular diodes, whose critical temperature is 215 ° without resorting to more expensive rectification elements whose critical temperature is greater, for example of the order of 235 ° C. .
- peripheral and transverse walls are thinner than the ribs of the rib network of the prior art.
- This dissipator has a simpler form than those of the prior art.
- At least one of the cells is provided at its inner periphery with an internal cooling fin projecting inwardly with respect to the inner periphery of the positive heat sink;
- At least one of the cells comprises at least two external holes delimited by the inner periphery of the peripheral wall to create a continuity of material between the first current rectifying element and the peripheral wall; the two transverse walls of at least one pair of transverse walls (and thus at least one cell) are extended at their inner periphery to form an internal fin; at least one of the transverse walls of at least one cell is extended radially inwardly at its inner periphery to form an internal cooling fin;
- At least one of the cells comprises at least one additional internal cooling fin (200) projecting radially inwards with respect to the inner periphery of the dissipator (9), the first current rectifying element (8) of this cell being implanted between the outer hole and the inner fin.
- the cells has a greater number of additional internal fins than the other cells;
- the sink has a number of access holes at an electrical connection terminal of a second current rectifier element less than the number of first current rectifying elements;
- the dissipator is circumferentially shorter than the connector;
- the connector has a tortuous shape at its inner periphery to clear the heatsink;
- the connector has three lugs for local contact with the underside of the heatsink and creating a clearance between the plate-shaped bodies of the heatsink and the connector;
- the dissipator can be equipped with a terminal, called terminal B +, with radial or axial output.
- Figure 1 is an axial sectional view of a rotating electrical machine in the form of an alternator equipped with a rectifying arrangement according to the prior art
- Figure 2 is a perspective view of a rectifying arrangement according to the invention, mounted on the rear bearing of an alternator for a motor vehicle;
- FIG. 3 is a front view of the arrangement of FIG. 2;
- FIG. 4 is a partial view on a larger scale of the rectifying arrangement of FIG. 3;
- FIG. 5 is a perspective view of the heat sink of Figures 2 to 4;
- FIG. 6 is a front view of the heat sink of FIG. 5;
- Figure 7 is a front view of the protective cover of the current rectifying arrangement of Figures 2 to 6;
- Figure 8 is a front view of the connector of the current rectifying arrangement of Figures 2 to 6;
- Figure 9 is a partial sectional view showing a latching tab of the cover with the connector of Figures 2 to 6.
- Figure 10 is a perspective view from below of the protective cover to show the latching tabs;
- FIG. 11 is a perspective view similar to FIG. 2 for another embodiment
- FIG. 12 is a schematic view of part of the electrical traces of the connector
- Figure 13 is a perspective view similar to Figure 11 for yet another embodiment.
- FIGS. 2 to 11 the constructive measures according to the invention will be described below, in order to make the connector 113 and the positive dissipator 9 more compact, to further cool the positive current-recovery elements 8 and to reduce the material of the bodies. of connector 113 and the dissipator positive 9.
- Figures 2 to 4 and 11 only the elements necessary for the understanding of the invention will be shown. Thus, it has been shown that two fastening members 115 of the arrangement 1 and there is not shown the brush holder-voltage regulator assembly, or the cover, or the outputs 214 of the windings 23 'of the winding phases 23 of the stator (FIG. 12) to better view the DC rectifier arrangement 1 of the invention.
- the polyphase rotating electric machine consists, as in FIG. 1, of a three-phase type motor vehicle alternator, and the structure of the polyphase alternator is generally conserved, whereas the connector 113 and the dissipator of FIG. 9 positive heat, here metallic thus electrically conductive and good heat conductor, both shaped plate, are modified.
- the housing of the alternator houses the winding of the stator here comprising three phase outputs, each phase here comprising a winding.
- the structure of the hollow-shaped rear bearing 16 with its air inlet openings 7, belonging to its transversely oriented plate 3 with holes pierced centrally for passing through, is retained (FIGS. 2 to 4 and 11).
- the rear end of the shaft 15 of Figure 1 and its lateral air outlet openings 5, belonging to its peripheral rim 4 generally of axial orientation, for circulation between these openings 5, 7 of the air of cooling generated by the rotation of the fan 104 of Figure 1.
- the bearing 16 is devoid of ears 160, and there is provided on the plate 3 a threaded additional chimney 600 for fixing a radial terminal.
- Figure 13 we see one of the two ears of Figures 2 and 3 and a radial chimney 217 'mounting a terminal 117 described below.
- the openings 5 have an axial portion affecting the flange 4 extended by a radial portion affecting the outer periphery of the plate 3 to obtain by demolding the openings 5.
- the metal bearing 16, as in Figure 1, is through its tray 3 the support of the negative elements 10 current rectifier. This bearing 16 is therefore the negative heat sink which removes heat by conduction and convection.
- the plate 3 is larger than the positive heat sink 9, which dissipates the heat mainly by convection.
- the outputs 214 of the windings pass through an air outlet opening whose radial part 5 'is deeper than that of the other openings 5 as can be seen more clearly in FIGS. 11.
- At least one of the outputs of these windings passes through a specific closed opening made at the outer periphery of the plate 3.
- the dissipator 9 and the connector 113 have, on the one hand, a generally ear-shaped first end 95, 95 ', which is generally conserved, and secondly a second circumferential end 94, 113a, respectively, which is modified by as described below.
- the first ends 95, 95 'of the dissipator 9 and the connector 113 are superimposed.
- the dissipator 9 has an excess thickness 217 adjacent to the ear 95 and carrying a chimney 117 'of mounting a connection terminal 117, called B + terminal, which is intended, via a cable, to be connected to the positive terminal of the battery.
- This terminal 117 is here, as described in document FR 2 807 583, a screw whose head is polygonal, square, rectangular or has at least one flat.
- the base of the chimney 117 'and the excess thickness 217 are shaped accordingly to receive the shape of the head of the screw.
- the dissipator 9 is, as described below, modified between its first circumferential end 95 and its second circumferential end.
- the second circumferential end 94 of the dissipator is in the form of a flat ear and the dissipator 9 is modified between its adjacent terminal 117 of the ears 95, 95 'superimposed and this ear 94.
- This terminal 117 is here of axial orientation that is to say perpendicular to the plate of the dissipator 9.
- the terminal 117 is of radial orientation and is close to the second circumferential end of the dissipator.
- This dissipator is then modified between this terminal of radial orientation and the first circumferential end 95 of the dissipator 9.
- the connector 113 comprises electrical conductors, here in the form of metal traces, and has an ear 143 adjacent the ear 95 'to establish electrical connections via visible parts 145, 146 with traces of the voltage regulator as described in FIG. Document FR 2 754 654.
- This regulator also has a first and a second attachment lug provided with electrical traces for electrical contact respectively with the dissipator 9 and with a threaded chimney (not referenced) close to the second circumferential end 113a of the connector 113.
- the attachment of the connector 113 and the dissipator 9 on the plate 3 is made at three points by means of fastener 115 passing through aligned holes 115 ', 123 respectively formed in the dissipator and in the connector.
- These members may be studs as in Figure 1, alternatively rivets or bolts.
- the organs consist of screws 115.
- the plate 3 locally has three thicknesses in the form of tapped chimneys for screwing screws 115, as well as two other chimneys for fixing via screws of the voltage regulator at its second ear and ear 143.
- the screws are screwed into their associated threaded chimney of the plate 3 and are supported by their head on the relevant part farthest from the plate 3.
- One of these screws 115 is supported via its head on the first ear of the regulator and passes through a hole of this first ear aligned with the holes 115 ', 123.
- the connector is provided with axial projections for local contact with the plate 3 as in Figure 1 of WO 02/093717.
- the lower face of the connector 113, turned towards the plate 3 has several projections in the form of cylindrical pins for local contact with the plate 3.
- the connector 113 is thus raised relative to the plate 3 while being parallel and at an axial distance from that -this.
- the cover 27 of FIG. 1 is retained with its snap-fastening on the mounting studs 115 of the dissipator 9 and the connector 113 on the rear bearing plate 16.
- the cover 27 conventionally has a transverse flange for attachment to the bearing 16, for example using the screws 29 of FIG.
- This cover 27 is electrically insulating by being here plastic which allows to obtain by molding the desired shapes
- the arrangement 1 of the invention is mounted in place of that of Figure 1.
- This arrangement 1 comprises three pairs of current rectifying elements, namely three first diodes 8 and three seconds diodes 10.
- These diodes 8, 10 are each provided with a knurled cylindrical body constituting an electrical connection terminal respectively with the dissipator 9 and with the plate 3, and a tail constituting another terminal of electrical connection with a network of electrical conductors belonging to the connector 113.
- the first diodes 8 are called positive diodes because the positive dissipator 9 is intended to be connected to the positive terminal of the battery of the motor vehicle via its terminal 117, while the second diodes 10 are called negative diodes because the plate 3 and its bearing 16 are intended to be connected to the ground, called B-, and therefore to the negative terminal of the battery.
- the metal bearing 16 therefore constitutes a negative heat sink.
- the network of electrical conductors, here in the form of metal traces, of the connector 113 makes it possible to connect together the tails of a pair of diodes 8, 10 with an output 214 of a winding 23 'of the phase of the stator winding, referenced 23 in Figure 1, for forming a bridge between the dissipator 9 and the plate 3 and creation of the rectifier arrangement 1 AC direct current as shown schematically in Figure 12.
- the metal rear bearing 16 constitutes the support of the negative diodes 10 force-fitted each by their knurled body in an associated chamfered hole of the plate 3, while the knurled bodies of the positive diodes 8 are each forced into a chamfered hole 8 'of the heat sink 9.
- the diodes 10 are cooled by conduction by the bearing 16, here aluminum alternatively magnesium, and by convection.
- the dissipator 9, here metallic, and the diodes 8 are cooled mainly by convection.
- the diodes 8, 10 are mounted head to tail for reducing the axial size.
- the tails 111 of the diodes 10 are directed axially in reverse direction to the heatsink 9.
- the tails 111 are shorter and do not penetrate the openings 7. They are in all cases facing these openings 7 and thus well cleaned by the air flow generated by the rotation of the fan 104 of FIG 1.
- This dissipator 9 is here moldable material to easily obtain the desired shapes. He is here in aluminum, alternatively magnesium-based. It is also possible to machine the heatsink 9 so that, in a variant, the heatsink 9 is made of copper.
- This dissipator 9 comprises a plate-shaped body, which is parallel to the plate-shaped body of the connector 113.
- FIG. 2 to 4 shows at 6 the cylindrical core mounting of the bearing 106 of Figure 1 and 60 the capsule with holes associated with the bearing.
- the openings 7 of oblong shape here generally of trapezoidal shape, are delimited internally by the core 6, laterally by two non-referenced arms, and externally by the peripheral material of the plate 3, in which the bodies of the diodes 10 are mounted.
- openings 7 are here circumferentially and radially of different size and only one diode tail 8 is provided per opening 7. This depends on the configuration of the openings 7 of the bearing 16.
- two diode tails 8 can penetrate into the same opening 7 configured accordingly.
- the connector 113 (FIG. 8) is modified because of the configuration of the dissipator 9 implying a modification of the implantation of the positive diodes 8 with respect to the access holes 111 'at the ends of the negative diodes 10 in the manner described hereinafter.
- the inner annular portion of the wide-aperture connector of the type of FIG. 7 of the document WO 02/093717 is preserved for access to the air inlet openings 7.
- this inner annular portion with large openings is eliminated for a better cooling of the first diodes 8, reducing the consumption of material and better access to the openings 7.
- This connector 113 is more economical, simplified, smaller and more compact, lightweight and ventilated.
- the inner periphery of the dissipator 9 is therefore, according to one characteristic, in greater part opposite the air inlets 7.
- the body of the connector 113 (FIG. 8) is made of electrically insulating material, here made of plastic, in which is embedded by overmoulding, a network of electrical conductors, here flat aluminum, alternatively copper. These conductors are locally visible, that is to say stripped, at 114, 134, 142, 145, 146 for forming electrical connections respectively with the outputs of the windings of the phases of the stator, with the tails 111 of the diodes 10, with the tails of the diodes 8 and with, as mentioned above, traces of the voltage regulator.
- the stripped portions 114, 134 and 142 are generally square in shape and each comprise a transverse rooting portion in the plane of the body of the connector 113. This portion penetrates at one of its ends into the body of the connector 113 and is extended at its other end by a projecting terminal portion, which is generally perpendicular to the body of the connector 113.
- This body comprises a single through hole 122, here cylindrical, a tail of a positive diode 8, three through holes 123, here cylindrical, fasteners 115 of the dissipator 9 to the plate 3, two holes of access 124, here radially oblong, two tails 111 of negative diodes 10.
- the number of holes 122, 124, here closed, is reduced.
- Each hole 123 belongs to a boss 223 that locally protrudes the body of the connector 113, which also has lower thicknesses than the bosses 223 as shown in Figure 8.
- the hole 122 is dedicated to a bracket 142, while the two holes 124 are each dedicated to a bracket 134.
- the rooting portion of a single bracket 142 thus enters the hole 122, while the rooting portions of two brackets 134 each enter one of the two holes 124.
- Brackets 142 and a bracket 134 are located at the inner periphery of the connector 113.
- FIGS. 2 and 4 only two fastening screws 115 are seen, since the third screw 115, in the aforementioned manner, is intended to locally fix the voltage regulator-brush holder assembly (not visible), the dissipator 9 and the connector 113 on the plate 3 at the ears 95, 95 '.
- the ear 95 'of the connector is perforated at 123, and has a boss 223.
- This ear 95' has a shape corresponding to that of the ear 95 of the dissipator 9 with a hole 115 'for passage of the screw 115, which also crosses the first pierced ear of the regulator.
- the holes 123, 115 'and the first ear of the regulator are axially aligned.
- the attachment of the ears 95, 95 'and the regulator is made electrically isolated via the connector 113.
- the ear 95 of the dissipator 9 is interposed between the ear 95' of the connector 113 and the first ear of the regulator.
- the ear 95 bears on the boss 223 of the ear 95 '.
- the connector 113 and the dissipator 9 are juxtaposed, that is to say stacked axially.
- the connector 113 is interposed axially between the plate 3 and the dissipator 9 to achieve via its body an insulation between the dissipator 9 and the plate 3, which are at different potentials.
- the connector 113 and the dissipator 9 are locally in three point contact on the plate 3 having tapped chimneys for this purpose as above.
- the bodies of the connector 113 and the dissipator 9 are parallel
- bosses 223 belongs to the ear 95 'of the connector 113. Another of these bosses 223, is adjacent to the second circumferential end 113a. The other boss 223 circumferentially occupies an intermediate position.
- the inner face of the dissipator 9 is generally smooth according to a characteristic. A game, better visible in FIG. 11, therefore exists, according to one characteristic, between the lower face of the dissipator 9 and the upper face 247 of the connector 113. The importance of this game depends on the height of the bosses 223.
- This game allows a passage of air and following a characteristic is created at least one external hole 300 at the outer periphery of the dissipator 9 to allow, in favor of this game, a passage of air between the plate-shaped bodies of the connector 113 and heatsink 9 and thus improve the cooling of the diodes 8.
- Each hole 300 is delimited by the inner periphery of a wall 91 to 93 peripheral of the dissipator 9 projecting outwards. These walls 91-93 are located at the outer periphery of the dissipator 9. They extend in vis-à-vis and outside the diodes 8. They are circumferentially wider than the diameter of a hole 8 'mounting a body of a diode 8 ( Figures 5 and 6).
- Each hole 300 is less wide circumferentially than the peripheral wall to which it is connected. This hole extends outside a mounting area of a positive diode 8.
- At least one strip of material therefore exists between the between the mounting zone of a diode 8 and the relevant peripheral wall 91 to 93 for conductive evacuation of the heat.
- the walls 91 to 93 each belong, according to a characteristic, to a cooling cell A, B, C (FIGS. 2, 5 and 11) each comprising a first current rectifying element 8 and the associated hole 300 in this wall.
- Each cell is delimited laterally by a pair of outwardly projecting transverse walls, respectively 191-191 ', 192-192', 193-193 'which extend from the outer periphery to the inner periphery of the dissipator 9.
- According to a characteristic cells are blind by being open at the inner periphery of the positive heat sink 9.
- a free space exists between two consecutive cells respectively A, B and B, C.
- a passageway here transversal, exists between two transverse walls facing two consecutive cells in the manner described above. after and as visible in Figures 2 to 6, 11 and 12.
- each transverse wall of a cell is connected at its outer periphery to one of the circumferential ends of the peripheral wall concerned.
- Each cell is thus delimited by the material of a mounting zone of the positive diode 8 concerned belonging to the plate-shaped body of the dissipator 9, and by a projecting pattern consisting of a peripheral wall and laterally by two transverse walls.
- Each pattern, and therefore each cell is blind by being open at the inner periphery of the dissipator 9, which is tortuous in shape adapted to the presence of the openings 7 of air inlet.
- the distance between the transverse walls of the same cell is a function of the diameter of the diode mounting hole 8 'to allow the implantation of such a diode at the inner periphery of the dissipator 9 as can be seen in FIGS. and 11.
- a single single hole configuration 300 per cell there is at least one material strip between one of the transverse wall and the hole 300.
- At least one of the cells A, B, C is provided with at least one internal cooling fin at its inner periphery. This internal fin is projecting inward with respect to the inner periphery of the dissipator 9.
- the internal cooling fin of the cell in question is distinct from the transverse walls of this cell.
- At least one of the cells comprises at least one additional internal cooling fin 200 protruding radially inwards with respect to the inner periphery of the dissipator 9, the first current rectifying element 8 of this cell is implanted between the outer hole or holes 300 and the inner fin 200.
- At least one of the transverse walls of at least one cell is extended radially inward to form an internal cooling fin vis-à-vis an opening 7 and promote the evacuation convection heat.
- each transverse wall of at least one cell is extended inward towards an opening 7 to form an internal fin for even better cooling.
- the inner fins extend inwardly projecting relative to the inner periphery of the dissipator.
- the first cell A is the closest to the first circumferential end 95 of the dissipator, while the third cell C is the closest to the second circumferential end of the dissipator.
- the second cell B is implanted circumferentially between the two cells A, C.
- the first cell A is the closest to the terminal 117 adjacent to the first circumferential end 95 of the dissipator, whereas the third cell C, constituting the end cell, is adjacent to the second circumferential end 94 of the heatsink 9 in the form of a flat ear perforated at 115 'for the passage here of a fixing screw 115.
- the cells have a different shape, which is a function of their position on the sink as shown in Figures 5 and 6.
- cells A and B are narrower at their inner periphery than cell C.
- this third cell C has a transverse wall 193 'of tortuous shape to create a clearance for the head of the screw associated with the ear 94. This reduces the circumferential size of the dissipator.
- the holes 300 extend outside the first diodes 8, which are located in the vicinity of the inner periphery of the dissipator 9 to have the largest amount of material in a cell given the presence of the holes 300 (FIGS. 6).
- all the diodes 8 are located at the internal periphery of the dissipator and all the holes 300 at the outer periphery of the dissipator 9.
- the connector 113 is accordingly configured accordingly. described below.
- At least one cell is advantageously associated here with at least two external air passage holes 300, which are of small size and quadrilateral shape.
- each cell is associated with at least two holes 300.
- at least two external holes 300 are associated with each peripheral wall 91 to 93. These holes are separated by a strip of material, which extends from the relevant peripheral wall 91-93 to the material of the mounting zone of a body of a diode 8 comprising the hole 8 '.
- the strip of material and the material of the mounting region of a body of a diode allow the heat to be dissipated by conduction through the dissipator 9 connected via its terminal 117 to the cable of the battery constituting a cold source.
- At least two holes also allow a good cleaning of the dissipator by preventing the accumulation of water, especially salty, or any other contamination especially at the walls 91-93.
- the two holes of a cell are in an embodiment remote from the transverse walls of this cell.
- the two holes are advantageously also delimited each by a transverse wall of the cell concerned for better cleaning and better heat dissipation.
- These transverse walls constitute external cooling fins directed inwards.
- This fin 400 laterally defines a hole 300 and is distinct from transverse walls concerned.
- FIGS 4 and 5 there are provided several external fins 400 per cell. These fins 400 partially delimit laterally holes 300. These fins can increase the heat exchange by convection and, in the embodiment shown, are extended in the mounting area of a body of a diode 8 to further remove heat.
- the fins 400 belong to the strip of material separating two consecutive holes 300.
- At least one cell of the dissipator 9 is implanted at the inner periphery with at least one additional internal cooling fin 200 projecting radially inwards with respect to the internal periphery of the positive heat sink 9.
- the inner fin 200 is distinct from the transverse walls of the cell concerned. As a variant, the transverse walls of this cell do not have an internal fin so that the cell concerned has at least one additional fin 200.
- These fins 200 are set in series each below a hole 8 'and a first diode 8 to further cool those this.
- the internal and external fins 400 and the transverse and peripheral walls have a shape that depends on the position of the cell on the dissipator as can be seen in FIGS. 5 and 6.
- the number of external fins 400 and holes 300 is greater than the number of internal fins 200 (two) for the first cell A and the second cell B intermediate.
- the third cell C has the same number of holes 300 and fins 400, 200 as the cells A and B.
- the number of internal fins of the third extreme cell C is increased to better cool the last diode 8 adjacent to the tab 94; the number of external fins 400 and holes 300 being identical to those of the other cells.
- each cell is configured according to the applications, knowing that the first cell A is the coldest cell.
- Cell A in one embodiment, comprises a number of external fins and / or internal fins. less than the other cells B, C. It may not have internal and / or external fins.
- the number of fins 200, 400 and holes 300 is a function of the temperature reached by the diode 8 concerned. By adjusting these parameters and the length of the fins one can better control the temperature of the diodes 8 and make the temperature more uniform from one diode 8 to another.
- the visible brackets 114 are located projecting at the outer periphery of the connector 113 and are intended via their terminal attachment portion to the attachment of the outputs 214 of the windings 23 ' phases of the winding 23, for example star-connected (FIG. 12).
- Each serving fastening terminal is raised and is generally U-shaped diverging branches foldable to form a clamp crimping an outlet 214 of a winding 23 'stripped at the diverging branches for electrical contact therewith.
- Three crimping hooks 114 are therefore provided.
- the apparent brackets 134 and 142 have fixing portions mounted head to tail and each provided with a fold for local contact with the tail respectively of a negative diode 10 and a positive diode 8.
- the fixing of the tails of the diodes on the folds of the ends of the brackets is made here by welding, alternatively by crimping as for the hooks 114.
- Two terminal portions for fixing two brackets 134 penetrate axially into an associated closed access hole 111 'of the dissipator 9, each corresponding to a hole 124 of the connector 113 for access to at least one of the terminals of the second diodes 10, here at the tails 111 concerned.
- the brackets 134 pass through the holes 111 '.
- the holes 111 'and 124 here radially have an oblong shape with two parallel lateral edges (FIGS. 5, 6 and 8).
- the heatsink 9 therefore has, according to one characteristic, a number of holes 111 'smaller than the number of negative diodes 10 and two of the diodes 10 are accessible through the access holes 111', 124 grouped in pairs.
- Access holes 111 ', 124 at brackets 134 and diodes 10 extend at the outer periphery of dissipator 9 and connector 113. They are offset outward and circumferentially with respect to holes 8' and brackets 142 because the diodes 8 are all located at the inner periphery of the dissipator 9.
- the third bracket 134 for fixing the tail 111 of the extreme diode 10, called the end bracket is carried by the second circumferential end 113a of the connector 113 because its rooting portion enters the second end 113a.
- This end bracket 134 does not penetrate into a hole of the positive dissipator 9. It is shifted circumferentially with respect to the second circumferential end 94 of the heatsink 9 in the form of a flat lug perforated at 115 '.
- the positive diodes 8 are circumferentially interposed between the ear 94, 95, more precisely between the terminal 117 and the ear 94, as can be seen in FIG. 6.
- the diodes 8, carried by the body of the dissipator 9, are implanted circumferentially between the second ends 113a, 94 of the connector 113 and the dissipator
- the dissipator 9 has a circumferential length shorter than that of the connector 113.
- the second circumferential end 113a of the conector 113 extends circumferentially protruding with respect to the ear 94 of the dissipator 9.
- One of the diodes 8 is adjacent to the attachment lug 94.
- the dissipator 9 is more circumferentially compact than that of FIG. 5 of WO 02/093717. It is therefore lighter.
- the end bracket 134 is thus disengaged with respect to the dissipator 9 and also relative to the body of the connector 113 because it has an inwardly projecting portion of rooting relative to the the inner periphery of the body of the connector 113 and a fixing portion projecting axially in the opposite direction to the plate 3.
- the end 113a is of reduced width at this bracket 134.
- the fixing portions of the brackets 142 are directed towards an air inlet opening 7. Depending on their length, these portions may or may not penetrate into an opening 7.
- the two other brackets 142 have rooting portions protruding inwardly with respect to the inner periphery of the body of the connector 113. These brackets 142 are thus released and extend on either side of the intermediate bracket 134, mounted in the hole 124.
- the recessed inner periphery of the connector thus has a tortuous shape with material supply respectively at the hole 123 adjacent to the second end 113a and at the second end hole 124 implanted between the two 142.
- the inner periphery of the connector 113 has a sinusoidal shape between its end 113a and the open square, said first open square, furthest from the end 113a as visible in FIG. 8.
- the inner periphery of the body of the connector 113 also has a generally rectilinear portion between the ear 143 and the first bracket 142 disengaged in relation to a hook 114.
- the body of the connector 113 is of reduced thickness at this point ( Figure 8).
- the inner periphery of the connector thus has two clearances for access at least in large part to the bodies of these first two diodes 8.
- the hole 124 adjacent to the hole 122 is circumferentially offset relative to this hole 122 by being circumferentially interposed between this hole 122 and the ear 95 '.
- the tortuous inner periphery of the connector 113 is exposed as far as possible at the openings 7 of the plate 3. This makes it possible to cool the positive diode 8 furthest from the terminal 117, since the region of the dissipator 9 adjacent to the terminal 117 is the colder because this terminal 117, called terminal B +, is intended to be connected to the positive terminal of the battery of the motor vehicle via a cable which also removes calories by conduction.
- the diode 8 closest to the terminal 117 is therefore the coldest, knowing that the diodes 10 are cooler because they are cooled by the bearing 16 having more material than the dissipator 9.
- the connector 113 is adapted to the shape of the dissipator 9. It is more ventilated than that of the prior art while maintaining its functions at the ears 143, 95 '.
- the body of this connector 113 is trimmed in this embodiment at its inner periphery between the hole 122 and its second circumferential end 113a. This body therefore leaves more than air passage to better cool the heatsink 9. It is lighter and more economical.
- the dissipator 9 and the connector 113 are not modified at their circumferential end comprising the lugs 95, 95 'and 143.
- the material of the body of the connector 113 and the number of holes 122 are reduced. 124.
- one of the holes 124 is closer to the lugs 95, 143 than the hole 122 and that in the document WO 02/093717 (FIG. 7) it is the opposite.
- the brackets 134 for fixing the tails 111 of the negative diodes 10 are circumferentially offset in the direction of the second circumferential end 113a and the first circumferential end 95 'of the connector 113 with respect to the brackets 142. for fixing the tails of the positive diodes 8.
- One of the brackets 134 is closer to the ears 95 ', 143 than the brackets 142, while the last bracket 134 is closer to the second end 113a than the brackets 142.
- Two brackets 142 are located between the two holes 124.
- the dissipator 9 comprises two holes 111 'each associated with a hole 124.
- the first of these holes 111' access to the terminal 111 of the second diode 10 concerned, is circumferentially closer to the chimney 117 'and the terminal 117 (and thus the ear 95) that the holes 8' and the first diodes 8.
- This first hole 111 ' is implanted circumferentially between the terminal 117 and the first cell A.
- the second these holes 111 'of access to a terminal of another second diode 10 is circumferentially implanted between the two holes 8' and the first two diodes 8 furthest from the terminal 117 and thus between the two cells B, C.
- the median hole 115 'through which a fastener 115 passes is implanted circumferentially between the hole 8' of the middle diode 8 and the hole 8 'of the diode 8 which is the most circumferentially porch of the terminal 117.
- This hole is circumferentially implanted between the transverse walls vis-à-vis 191 ', 192 cells A and B and is therefore easily accessible.
- This arrangement allows a simple and fast fixing screws with a screwdriver because the heads of the screws are accessible, especially at the middle hole 115 'through the passageway, here transverse, between the two cells C , B. There is enough room to pass the screwdriver.
- All the holes 115 ', 111' and 8 ' are, according to one characteristic, circumferentially offset with respect to each other.
- the connector 113 of FIG. 8 has two positioning pins 97 for positioning each engaged in a cylindrical hole 97 'formed at the outer periphery of the metal dissipator 9 ( Figures 4 and 5).
- the connector 113 is positioned angularly with respect to the dissipator 9 so that the holes 115 ', 123 are aligned and the tails 111 penetrate the holes 111'.
- one of the holes 97 ' is delimited by the intermediate wall 92 and by two external fins 400 of the second cell B. This hole replaces one of the external holes 300.
- the other hole 97' is adjacent at the terminal 117.
- the fasteners 115 here screws, pass through the aligned openings 115 ', 123 and for this reason that electrically insulating sleeves 215 are threaded into the openings 115' to isolate the fasteners 115, screwed into the plateau 3, relative to the dissipator 9.
- the sleeves 215 have a change in diameter for support here of the head of the screw 115 on this change in diameter.
- the largest diameter of a sleeve is sized for the passage of the screwdriver.
- bosses 223 also have a non-referenced collar penetrating each into a hole 115 'to complete the electrical insulation in association with the sleeves 215.
- the lower face 246 of the connector 113 As in FIG. 1, the lower face 246 of the connector 113, the closest to the plate 3, locally has changes in diameter to partially surround the associated chimney of the plate 3.
- the studs are replaced by screws 115 and the cap 27 is fastened economically by snapping onto the connector 113.
- the body of the connector 113 ( Figure 8) has at its outer periphery two projections 148, each having a recess 144 in the shape of a U, and a projection 147 shaped flat.
- a projection 148 is located at the first circumferential end 95 'of the connector 113, while the projection 147 is located at the second circumferential end 113a of the connector 113 and in the vicinity of a boss 223 and the square.
- the other projection 148 is implanted between two hooks 114 in the vicinity of the central boss 223 and the median hole 115 ', that is to say circumferentially between the cells A and B.
- the projections 147, 148 are therefore each located in the vicinity of a fixing hole 123, traversed by a screw 115 and therefore in the vicinity of a boss 223 and a point of attachment of the dissipator 9 and the connector 113 on the plate 3.
- the cover 27 ( Figures 7, 9 and 10) is hollow. It is here plastic and is electrically insulating. It has a bottom 228, generally of transverse orientation relative to the axis XX of Figure 1. This bottom 228 is extended at its outer periphery by a skirt 227 generally axially oriented relative to the axis XX of the Figure 1. This skirt 227 is generally perpendicular to the bottom 228.
- This bottom 228 is perforated, here grid, for passage of the air flow through the dissipator 9, the connector 113 and the openings 7 as described below.
- This cover 27 makes it possible to obtain, by molding of its plastic material, easily the desired shapes.
- Reference 271 denotes a housing for the brush holder, while references 274 and 273 are holes respectively for the passage of the voltage regulator connector and for terminal 117 carried by the dissipator 9.
- the cover 27 has at its outer periphery bosses 272, here three bosses, for passage and housing of the outputs 214 of the windings 23 'of the phases, which pass axially through the plate 3 in favor of the radial portion of an opening 5 affecting the outer periphery of the plate 3 as in Figure 1.
- This radial portion is previously enlarged as visible at 5 'in Figures 3 and 11.
- outlets 214 pass through a specific hole in the plate 3.
- This cover 27 is configured so that it cooperates with the projection 147, 148 for its snap-fastening on the lower face 246 made of plastic material of the body of the connector 113 turned towards the plate 3.
- the projections 147, 148 are intended to cooperate each (FIG. 9) with a latching tab 224 245 which is obtained by molding the skirt 227 of the cover 27 which has three tabs 244 circumferentially spaced apart (FIG. 10).
- Each tab 244 is axially oriented and at least one of these tabs is in the embodiment of Figures 9 and 10 of reduced thickness relative to the skirt 227 to be more flexible.
- the thickness of at least one lug 244 is equal to the thickness of the skirt 227.
- all the tabs are of reduced thickness relative to the thickness of the skirt 227, as in FIG. 9.
- Each tab 244 ( Figure 10) is produced by molding the skirt 227 being shorter axially than the latter. It is delimited laterally by a blind axial slot and is connected to its foot to a strip of material lower than the skirt 227.
- the hook 245 is thicker than the tab 244 and constitutes the free end of the tab 244. This hook 245 is delimited by a transverse face 248 intended to come into contact with the lower face 246 of the connector 113 closest to the plate 3 .
- the hook 245 is also delimited by an end chamfer 249.
- axial pressure is exerted on the cover 27 (see axial arrow of FIG. 9) and the chamfer 249 comes engaged with the upper face 247 of the connector 113, so that the tab 244 extends laterally (see lateral arrow of Figure 9) to enter this figure 9 in the recess 144 of the projection 148.
- the width of the tab 244 is a function of the distance between the branches 344 laterally delimiting the U-shaped recess 144 of a projection 148 so that this tab can penetrate the recess 144.
- the width of the blind slots delimiting The paws 244 is determined by the width of the branches 344 so that they can enter the slots.
- the branches 344 thus make it possible also to immobilize the tabs and thus to block in rotation the cover 27 in cooperation with the bottoms of the recesses of the protrusions 1148.
- the tab 244 comes into contact with the planar upper face of this projection, while the hook of the tab 244 engages by its transverse face 248 with the lower face 246 of the connector 113.
- the tabs 244 are of sufficient length to flex and are provided.
- the fastening of the cover can be achieved by means of the air outlet openings 5 of the cover.
- the hook 245 is admitted by its face 248 to cooperate with the inner face 301 ( Figure 9) of the plate 3.
- This solution is less satisfactory because the hooks 245 are then implanted in the vicinity of the bun 39 of Figure 1 and therefore subject to overheating so that the hood fastening is less reliable.
- the fastening is achieved by snapping the cover 27 with tabs 244 with the dissipator 9 provided with projections of the type of the projections 147, 148.
- the two projections 148 are integral with the dissipator 9 and the projection 147 of the connector. This solution is less favorable because the heat sink 9 is hotter than the hood 27.
- the cover internally has three partitions 277 each implanted opposite a boss 272 housing an output of a winding of a phase of the winding of the alternator ( Figure 10). Two of these partitions 277 are connected together at one of their ends to form a V. A tab 244 is interposed between a first end of all of these two partitions 277 and the third partition 277. Another leg 244 is implanted at the other end of the set of two partitions 277.
- the two V-shaped partitions 277 are thus implanted circumferentially between two tabs 244 for snapping.
- partitions 277 are generally perpendicular to the bottom 228 and integrally molded with the cover 27 of plastics material. They are located outside the openings 275 and inside the skirt 227, which is generally perpendicular to the bottom 228.
- the external periphery of the connector 113 is delimited in part by four sections 149 of different length, which extend from the first hole 124, the closest to the ear 95 ', up to 147.
- the first panel 149 is extended by a generally arcuate portion terminated by the ear 95 'and comprising a projection 148.
- This first panel 149, adjacent to the first hole 124, is shorter than the other parts. and that the fourth pan, the closest to the projection 147, which is longer than the other sections.
- the second projection 148 farthest from the ear 95 ' is located at the junction of the second and third sides 149 and in the vicinity of the intermediate boss 223.
- the first panel 149 is shorter than the other panels because each of these three other panels 149 is provided with a hook 114, which projects outwardly, via its rooting portion, perpendicular to its pan 149.
- the material of the body of the connector 113 is trimmed at its outer periphery because the panels 149 make it possible to reduce the material of the body of the connector 113.
- the outer periphery of the dissipator 9 has a shape complementary to that of the connector 113.
- the plate of the dissipator 9 has four complementary sections to the sides 149 and which extend from the ear 94 to the vicinity of the first access hole 111 '. These four sections are extended, to gain even more material, by an additional pan extending to the terminal 117, then by an arcuate portion connecting to the ear 95.
- the three peripheral walls 91 to 93 extend outwardly towards each other with respect to the last three faces.
- first part of the dissipator 9 is shorter than the other parts so that the first peripheral wall 91 of the dissipator is shaped accordingly.
- This wall comprises two portions, namely a first portion associated with the second part of the dissipator and the connector and a second portion, shorter, associated with the first part of the dissipator and the connector as can be seen in FIGS. 5 and 6.
- the second and the third wall, respectively 92, 93, are associated with only one pan.
- the three peripheral walls 91 to 93 are each in the axial extension of at least one side of the dissipator plate and the connector plate as best seen in FIGS. 5 and 6.
- the walls 91 to 93 are circumferentially shorter than the associated part (s).
- the partitions 277 are of sufficient height to face the walls 91 to 93, which are lower than the skirt 227.
- the partitions 227 are longer than the walls 91 to 93 and mask them.
- the dissipator 9 is compact at its outer periphery, just like the connector 113.
- the connector 113-heatsink assembly 9 therefore has at its outer periphery sections comprising the walls 91 to 93 as best seen in FIGS. 3, 4 and 11, the fixing portions of the hooks 114 being in front of them. sections.
- the projections 148, 147 and the hooks 114 project outwardly with respect to the outer periphery of the connector and the dissipator.
- Each partition 277 of the cover 27 extends according to a characteristic in one of the aforementioned spaces to isolate a pan 149 and the relevant wall 91-93 of the dissipator 9 with respect to the fixing portion of a hook 114 which are not at the same electrical potential.
- the partitions 277 are therefore each parallel to the relevant part of the connector 113-heatsink assembly 9.
- the partitions 277 here are tangentially oriented with respect to a circle passing through their center.
- the rooting zones of the hooks 114 here are perpendicular to the partitions 277, while the attachment portions of the hooks are generally parallel to the partitions 277.
- the attachment portions of the hooks are inclined relative to the fastening portions at an angle of about 90 ° and greater than 90 °.
- each fixing portion of a hook 114 penetrates insulation in a boss 272 for attachment to an output of a winding of a winding phase of the stator.
- partitions 277 are isolation walls and prevent splashes of water, especially salty water, or any other contamination from entering the dissipator assembly 9-connector 113.
- bosses 272 have at their apex a slot 281 for evacuation splashing water, especially salty or soil.
- plastic partitions 277 also electrically isolate the dissipator 9 and the fastening portions of the hooks 114 which are close to one another and at different electrical potentials.
- the air circulation also between the free spaces between the cells forming corridors of passage, here transversal, more precisely: between the outer periphery of the walls 192 'and 193 facing the cells B and C between which the second hole 111' is implanted,
- the other partition follows the contour of the longest portion of the wall 93, while the skirt 227 broadly follows the contour of the rest of the outer periphery of the dissipator 9 and facing the first hole 111 '.
- This solution allows the heatsink assembly 9-connector 113 to remain compact at its outer periphery while saving an extra piece or overmolding to prevent the ingress of salt water or other dirt and create electrical insulation and air ducting.
- the cover 27 internally has a strip of material 278, generally L-shaped, at its hole 273 passage of the terminal 117. bonnet for internally channeling the air passage at the inner periphery of the first hole 111 '.
- the strip 278 is produced by molding the bottom 228. It has an end head, an internal section directed inwards and extended by a circumferential orientation foot.
- the head of the band 278 is connected to the skirt
- This band 278 defines the edge of three openings 275, respectively external, intermediate and internal. These openings 275 are radially implanted one above the other. The inner section delimits the aligned radial edges of the openings 275 external and intermediate. The foot of the band 278 defines the circumferential edge common to the intermediate and internal openings.
- the air is channeled so that a first air flow will pass through the outer and intermediate openings while another separate air flow will pass through the inner opening.
- the external and intermediate openings are located facing the first hole 111 ', which is opposite the associated hole 124 of the connector 113 as visible in Figures 2 to 4.
- the tail 111 of the diode 10 implanted in these openings 111', 124 will be well cooled.
- the height of the band 278 is smaller than that of the skirt 227.
- This strip 278 allows in combination with the transverse wall 191 of the first cell A of the dissipator 9 to internally channel the passage of air so that the air sweeps well the dissipator 9 at the first hole 111 'adjacent to the terminal 117.
- This band also stiffens the bonnet at the terminal 117.
- This tab 279 delimits the edge common to an intermediate and internal opening as the foot of the band 278. It is located at the inner periphery of the dissipator between the partitions 192 ', 193 vis-à-vis the cells B and C.
- the tab 279 is generally axially oriented, that is to say generally perpendicular to the bottom 228.
- the walls 192 'and 193 are generally parallel to each other.
- This arrangement is advantageous because these walls delimit a transverse passage for the passage of a welding electrode of the tail 111 of the second negative diode.
- the electrode can therefore move transversely, which facilitates the welding and the speed of welding.
- Another transverse passageway of the welding electrode is also present between the wall 191 of the first cell and the extra thickness 217.
- the tail 111 of the extreme diode 10 is also accessible.
- the solution according to the invention thus facilitates the welding of the tails of the negative diodes. It makes this welding faster and easier, no obstacle hindering the transverse displacement of the electrode.
- skirt 227 has rectilinear portions at the opening 274 to fit more closely the shape of the voltage regulator assembly - brush holder. This arrangement also prevents the hood from turning.
- the housing 271 is delimited inside the cover 27 by a wall 280 which conforms to the shape of the brush holder for housing it sealing.
- This wall 280 and the opening 273 for passage of the terminal 117 also prevents the hood from rotate in cooperation with terminal 117 and the brush holder.
- the air passage openings 275 are divided into three sets of external, intermediate and internal openings distributed one above the other. Each series is delimited by two rings of circumferentially oriented material and by a plurality of arms extending between the two rings of material as can be seen in FIGS. 7 and 10. The bottom of the cover 27 is thus screened.
- the outermost series of apertures 275 allows air access in the aforementioned manner to the holes 111 ', 124, as well as to the external holes 300 and the external fins 400.
- the external holes 300 also make it possible to reduce the weight of the dissipator 9
- the series of median openings allows access of the air to the body of the positive diodes 8 and also to the holes 111 ', 124.
- the innermost series of openings allows access of air to the internal extensions of the transverse walls 191-191 ', 192-192', 193-193 'as well as the additional internal fins 200.
- the innermost series of openings 275 is facing the air inlet openings 7, as well as the internal fins 200 and the internal extensions of the transverse walls.
- peripheral walls 91 to 93, the transverse walls 191 to 193 ', the outer fins 400 and the inner fins 200 have the same height so that a small axial clearance exists relative to the bottom of the cover 27 to channel the passage of the 'air.
- the dissipator 9 has at its outer periphery two external walls 98 of stiffening, which are less high than the walls 91 to 93 and which respectively connect the walls 92 and 93 of the second and the third cell and the wall 91 of the first cell to the excess thickness 217 carrying the chimney 117 'mounting the 117. These walls allow a good resistance of the heatsink to heat. These walls 98 externally delimit the passageways respectively between the cells C, B and B, A
- This dissipator 9 also has at its inner periphery, for the same reasons as the walls 98, three walls 99 of stiffening and resistance to heat respectively implanted between the extra thickness 217 and the transverse wall 191 of the first cell, between the transverse wall 191 'of the first cell and the transverse wall 192 vis-à-vis the second cell and finally between the transverse wall 192' of the second cell and the transverse wall vis-à-vis 193 of the third cell.
- the upper face, farthest from the plate 3, of the plate-shaped body of the dissipator 9 thus carries walls 91, 93 and walls 98, 99 which project here perpendicularly to this face and extend circumferentially to define here in part the outer and inner periphery of the dissipator.
- the walls 99 internally delimit the passageways respectively between the cells C, B and B, A.
- the upper face of the heatsink plate 9 also carries the pairs of transverse walls 191- 191 ', 192-192', 193-193 ', the outer and inner fins 400 and 400 which protrude perpendicularly to this face and which extend transversely from the outer periphery to the inner periphery of the dissipator plate 9.
- the internal and / or external fins, or the transverse walls and / or the peripheral walls with respect to the upper face of the dissipator are inclined.
- the walls and the fins extend outwardly with respect to the upper face of the dissipator and generally make it possible not to increase the thickness of the dissipator, which in the framework of diodes force-fitted in the holes 8 ', for small alternators and a fan with an external diameter of 82 to 92 mm, generally equal to the outer diameter of the rotor of Figure 1, may have a thickness of between 3 and 5 mm.
- the diodes are brazed on the dissipator and / or on the plate 3, as described for example in document FR 2 734 427, so that the body of the diodes is not necessarily knurled and the presence of the holes 8 ' it's not mandatory.
- the thickness of the dissipator 9 is about 1 to 3 mm.
- the thickness of the dissipator for small alternators and a fan of external diameter of 82 to 92 mm, generally equal to the outer diameter of the rotor of Figure 1, is therefore between 1 and 5 mm.
- the temperature reached by the extreme positive diode (the warmest and the closest to the ear 94) is 8 ° lower than that of a solution the prior art and for an ambient temperature of 105 °.
- the extreme diode is advantageously an economic diode which does not exceed its critical temperature of 215 °.
- this critical temperature of 215 ° corresponds to the case where, to increase the power of the alternator by reducing the magnetic leakage, the claw rotor is equipped with permanent magnets between these claws 68, 70, as in the document FR 2905806 .
- the invention is applicable to a larger generator. Thanks to the invention the positive diodes are well cooled and a compromise is made between the mechanical strength, the cost of the material and the heat exchange surface.
- the dissipator is permeable, in particular thanks to the holes 300, and it is easier to fix the tails of the negative diodes, in particular by welding, as well as to screw the screws thanks to the spaces and the corridors existing between two consecutive cells and between the cell A and the Terminal 117.
- partitions 277 of the cover in combination with the material strip 278 and the tab 279, placed between the partitions 192 ', 193 at the inner periphery thereof, enable the flow of air to be channeled at the level of the elements. tails 111 of the diodes 10.
- the partitions 277 follow the shape of the sections of the connector-sink assembly and each extend on either side of a hook.
- the partitions and sections concerned here are rectilinear
- the cover has no penetrating extension into a passage opening of a phase output produced in the plate 3 so that it is simplified. The same is true of the connector.
- the heatsink cell also meets the wishes of different manufacturers of motor vehicles and easily apply the solution to the case where the terminal 117, said terminal B + is radially oriented as shown in Figure 13.
- This dissipator 9 is extended at its second circumferential end so that it has a chimney 217 'in the vicinity of this second circumferential end. radial orientation in association with an additional attachment point made using a pierced ear type ear 94 of Figures 5 and 6, constituting the second circumferential end of the dissipator.
- This additional fixing point is made with the aid of this pierced ear and the additional threaded chimney 600 of FIG. 11.
- This attachment is made as for the attachment of the ear 94 by means of a screw 115 and an additional insulating sleeve 215.
- the bearing plate of Figure 11 is therefore suitable for several applications.
- the chimney 217 ' is intended for mounting the connection terminal 117 of the preceding figures which extends radially from the radial chimney 217'.
- This terminal 117 is here, as above, a screw whose head is polygonal, square, rectangular or has at least one flat.
- the base of the chimney 217 ' is accordingly shaped to receive formally cooperation the head of the screw.
- the ear 94 is extended by a portion 294 which carries the radial chimney 217 'and ends with a pierced ear lug of the type of the ear 94.
- the dissipator has four attachment points and the second end 113a of the connector is extended outwards to pass under the portion 294 and have a projection 148.
- the dissipator 9 is circumferentially longer than the connector 113.
- the implantation of the brackets 134 and 142 is unchanged, as well as that of the lugs 95 'and 143.
- the inner periphery. of the connector 113 the dissipator 9 has a first circumferential end 95, here superimposed on a first circumferential end 95 'of the connector 113, and a C of the cells, called the end cell, the closest to the second circumferential end of the dissipator 9, has a greater number of additional fins 200 than the other cooling cells.
- This cell C has a transverse wall 193 'of tortuous shape for screwing screw 115 through a through hole 115' formed in the dissipator and adjacent to the wall 193 '.
- the present invention is not limited to the described embodiments.
- the sections of the dissipator-connector assembly may have another shape.
- At least one pan may have a convex convex shape, that is to say a curved shape.
- the associated partition has a complementary concave shape, that is to say a curved shape, to match the shape of the convex panel.
- the concave shape of the partition is obtained easily by molding.
- At least one of the cells, such as the cell A, may therefore alternatively comprise a curved peripheral wall of convex shape.
- the hooks 114 are not necessarily in the form of a square. It all depends on the shape of the outputs 214 of the phases, which can be more or less inclined.
- the number of pairs of current rectifying elements is greater than three, for example four, so that the dissipator alternatively has four cooling cells.
- part of the strip of material 278 is removed, keeping only its circumferential part, and a transverse wall parallel to the wall 191 is added to create a second passageway such as that between the partitions 192 ', 193.
- the visible parts 134, 142 have another shape.
- the terminal portion of attachment of these parts is alternately inclined relative to the rooting portion of these parts.
- the rooting portions are in the extension of the end portions.
- the lengths of the tails of the diodes are identical. In a variant, the tails of the diodes are of different length.
- At least one pair of diodes 8, 10 does not have tails; the exposed portions 134, 142 then being extended and configured accordingly.
- the diodes 8 and / or 10 are alternatively, as previously mentioned, soldered respectively to the dissipator 9 and to the plate 3.
- the diodes 10 are carried directly by the plate 3.
- the diodes 10 are borne indirectly by the plate by being mounted on an annular sector fixed on the plate 3 as described, for example, in the aforementioned documents EP 1 4860 750 and US 2004/0051409.
- negative and positive diodes 8 are carried respectively by the plate 3 and the dissipator.
- alternator-starters of motor vehicles or to the, which are reversible alternators able to operate alternately as a generator generator current and as electric motor including starter.
- alternator-starter has the structure of a conventional alternator and has means for monitoring the rotation of the rotor for injecting current into the stator winding when the machine operates in electric motor mode.
- the diodes 8, 10 therefore consist alternately of MOSFET transistors.
- the presence of the resin 50, the pads 34 and the seal 46 of the figure is not mandatory and alternatively the mounting of the body 19 in the bearings 16, 18 is rigid.
- the rotor of the machine is salient poles as described in WO 02/054566.
- the rotor of the machine is equipped with permanent magnets as described in this document WO 02/0546 or as previously mentioned in the document FR 2905806 describing an assembly variant of the claw rotor with the shaft of this rotor.
- the front bearing comprises a channel for circulation of a cooling fluid so that the front bearing is cooled by the circulation of this cooling fluid, while the rear bearing and the current rectifying arrangement are cooled by the air circulation caused by the rear fan.
- At least one of the two bearings is non-perforated variant.
- the casing of the machine may comprise an intermediate piece internally bearing the stator and interposed between the front and rear bearings.
- a single fan is located outside at the pulley and the air passes through axially the alternator in favor of the air inlet openings formed in the bearing plates so that the front and rear bearings are alternatively without their outer periphery of the air outlet 5.
- the fan is replaced by a centrifugal pump mounted in a housing provided at the rear of the alternator as described in document FR 2 744575.
- the casing has channels which open at an inner end into the housing of the centrifugal pump and by a front end outside the alternator.
- the pump draws air inside the alternator and forces it outside by the channels.
- the bearings do not include in this case a flange with side openings air outlet.
- the current rectifier arrangement and the protective cover are carried by the front bearing as described in FR 2 744575.
- One of the bearings alternatively is constituted by a plate.
- the hood has a conventional shape in the aforementioned manner and free spaces and therefore passageways that exist between two consecutive cells.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Synchronous Machinery (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127008139A KR101705394B1 (ko) | 2009-09-30 | 2010-09-29 | 회전 전기 기계, 특히 자동차의 얼터네이터를 위한 전류 정류 장치 및 이러한 장치를 포함하는 회전 전기 기계 |
BR112012006272A BR112012006272A2 (pt) | 2009-09-30 | 2010-09-29 | arranjo de retificação de corrente para máquina elétrica giratórioa polifásica e máquina elétrica giratória polifásica, tal como um alternador de veículo automotivo |
EP10773128A EP2483997A1 (fr) | 2009-09-30 | 2010-09-29 | Agencement de redressement de courant pour machine electrique tournante, notamment alternateur pour vehicule automobile, et machine electrique tournante comportant un tel agencement |
IN2677DEN2012 IN2012DN02677A (fr) | 2009-09-30 | 2010-09-29 | |
CN201080043955.5A CN102549891B (zh) | 2009-09-30 | 2010-09-29 | 用于旋转电机的整流装置,特别是用于机动车辆的交流发电机,以及包括这种装置的旋转电机 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0956797A FR2950753B1 (fr) | 2009-09-30 | 2009-09-30 | Agencement de redressement de courant pour machine electrique tournante, notamment alternateur pour vehicule automobile, et machine electrique tournante comportant un tel agencement |
FR0956797 | 2009-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011039468A1 true WO2011039468A1 (fr) | 2011-04-07 |
Family
ID=42227693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2010/052044 WO2011039468A1 (fr) | 2009-09-30 | 2010-09-29 | Agencement de redressement de courant pour machine electrique tournante, notamment alternateur pour vehicule automobile, et machine electrique tournante comportant un tel agencement |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2483997A1 (fr) |
KR (1) | KR101705394B1 (fr) |
CN (1) | CN102549891B (fr) |
BR (1) | BR112012006272A2 (fr) |
FR (1) | FR2950753B1 (fr) |
IN (1) | IN2012DN02677A (fr) |
WO (1) | WO2011039468A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2978884B1 (fr) * | 2011-08-05 | 2014-09-12 | Valeo Equip Electr Moteur | Connecteur, dispositif de redressement de courant muni d'un tel connecteur et machine electrique equipee d'un tel dispositif de redressement |
FR2978885B1 (fr) * | 2011-08-05 | 2015-11-13 | Valeo Equip Electr Moteur | Connecteur, dispositif de redressement de courant muni d'un tel connecteur et machine electrique equipee d'un tel dispositif de redressement |
FR3010588B1 (fr) * | 2013-09-09 | 2015-10-09 | Valeo Equip Electr Moteur | Capot de protection pour machine electrique tournante pour vehicule automobile |
KR20150057784A (ko) | 2013-11-20 | 2015-05-28 | 엘지이노텍 주식회사 | 벨트 구동형 시동 발전기 |
FR3052610B1 (fr) | 2016-06-14 | 2021-12-03 | Valeo Equip Electr Moteur | Machine electrique tournante a electronique de puissance amelioree |
FR3056842B1 (fr) * | 2016-09-28 | 2018-10-12 | Valeo Equipements Electriques Moteur | Machine electrique tournante munie d'un interconnecteur a configuration amelioree |
FR3086125B1 (fr) * | 2018-09-14 | 2020-10-02 | Valeo Equip Electr Moteur | Machine electrique tournante munie d'un palier realise a partir de deux parties surmoulees |
Citations (17)
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WO1992006527A1 (fr) | 1990-10-04 | 1992-04-16 | Robert Bosch Gmbh | Stator pour moteur electrique et son procede de fabrication |
FR2734427A1 (fr) | 1995-05-17 | 1996-11-22 | Valeo Equip Electr Moteur | Alternateur, notamment pour vehicule automobile, comportant un agencement perfectionne de diodes de redressement |
FR2744575A1 (fr) | 1996-02-06 | 1997-08-08 | Valeo Equip Electr Moteur | Alternateur de vehicule automobile muni d'un circuit perfectionne de refroidissement par air |
FR2754654A1 (fr) | 1996-10-11 | 1998-04-17 | Motorola Inc | Procede et systeme dans un amplificateur a matrice hybride pour configurer un transformateur numerique |
WO2001069762A1 (fr) | 2000-03-10 | 2001-09-20 | Valeo Equipements Electriques Moteur | Machine electrique tournante polyphasee |
FR2807583A1 (fr) | 2000-04-06 | 2001-10-12 | Valeo Equip Electr Moteur | Assemblage de borne de connexion sur un alternateur ou un alterno-demarreur de vehicule, notamment automobile |
WO2002000546A1 (fr) | 2000-06-28 | 2002-01-03 | Sanyo Electric Co., Ltd. | Reacteur de reformage de combustible et son procede de production |
WO2002009317A1 (fr) | 2000-07-26 | 2002-01-31 | Matsushita Electric Industrial Co., Ltd. | Recepteur radio et procede de reception radio |
WO2002029958A1 (fr) | 2000-10-06 | 2002-04-11 | Valeo Equipements Electriques Moteur | Machine electrique tournante, et notamment alternateur de vehicule automobile, comportant un stator monte elastiquement dans une resine thermoconductrice |
FR2819117A1 (fr) | 2000-12-21 | 2002-07-05 | Valeo Equip Electr Moteur | Alternateur a elements conducteurs en epingle pour vehicule automobile |
WO2002054566A1 (fr) | 2001-01-05 | 2002-07-11 | Valeo Equipements Electriques Moteur | Machine tournante perfectionnee pour vehicule automobile |
WO2002093717A1 (fr) | 2001-05-15 | 2002-11-21 | Valeo Equipements Electriques Moteur | Machine electrique tournante, notamment alternateur pour vehicule automobile |
US20040051409A1 (en) | 2002-09-13 | 2004-03-18 | Denso Corporation | Alternator for an automotive vehicle |
EP1460750A1 (fr) | 2003-03-18 | 2004-09-22 | Denso Corporation | Alternateur pour véhicules automobiles |
EP1482622A2 (fr) | 2003-05-30 | 2004-12-01 | Hitachi, Ltd. | Générateur pour véhicule |
EP1486075A1 (fr) | 2002-03-08 | 2004-12-15 | Koninklijke Philips Electronics N.V. | Procede et dispositif de transition sans a-coups entre des structures a codage hierarchique a granularite fine |
FR2905806A1 (fr) | 2006-09-13 | 2008-03-14 | Valeo Equip Electr Moteur | Arbre de rotor a griffes, rotor a griffes equipe d'un tel arbre et machine electrique tournante equipee d'un tel rotor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2824966B1 (fr) * | 2001-05-15 | 2003-08-08 | Valeo Equip Electr Moteur | Machine electrique tournante, notamment alternateur pour vehicule automobile |
CN100342623C (zh) * | 2003-09-19 | 2007-10-10 | 瓦莱奥万都电子系统(韩国)株式会社 | 汽车用交流发电机的整流装置 |
-
2009
- 2009-09-30 FR FR0956797A patent/FR2950753B1/fr not_active Expired - Fee Related
-
2010
- 2010-09-29 WO PCT/FR2010/052044 patent/WO2011039468A1/fr active Application Filing
- 2010-09-29 KR KR1020127008139A patent/KR101705394B1/ko active IP Right Grant
- 2010-09-29 EP EP10773128A patent/EP2483997A1/fr not_active Withdrawn
- 2010-09-29 BR BR112012006272A patent/BR112012006272A2/pt not_active Application Discontinuation
- 2010-09-29 IN IN2677DEN2012 patent/IN2012DN02677A/en unknown
- 2010-09-29 CN CN201080043955.5A patent/CN102549891B/zh active Active
Patent Citations (17)
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WO1992006527A1 (fr) | 1990-10-04 | 1992-04-16 | Robert Bosch Gmbh | Stator pour moteur electrique et son procede de fabrication |
FR2734427A1 (fr) | 1995-05-17 | 1996-11-22 | Valeo Equip Electr Moteur | Alternateur, notamment pour vehicule automobile, comportant un agencement perfectionne de diodes de redressement |
FR2744575A1 (fr) | 1996-02-06 | 1997-08-08 | Valeo Equip Electr Moteur | Alternateur de vehicule automobile muni d'un circuit perfectionne de refroidissement par air |
FR2754654A1 (fr) | 1996-10-11 | 1998-04-17 | Motorola Inc | Procede et systeme dans un amplificateur a matrice hybride pour configurer un transformateur numerique |
WO2001069762A1 (fr) | 2000-03-10 | 2001-09-20 | Valeo Equipements Electriques Moteur | Machine electrique tournante polyphasee |
FR2807583A1 (fr) | 2000-04-06 | 2001-10-12 | Valeo Equip Electr Moteur | Assemblage de borne de connexion sur un alternateur ou un alterno-demarreur de vehicule, notamment automobile |
WO2002000546A1 (fr) | 2000-06-28 | 2002-01-03 | Sanyo Electric Co., Ltd. | Reacteur de reformage de combustible et son procede de production |
WO2002009317A1 (fr) | 2000-07-26 | 2002-01-31 | Matsushita Electric Industrial Co., Ltd. | Recepteur radio et procede de reception radio |
WO2002029958A1 (fr) | 2000-10-06 | 2002-04-11 | Valeo Equipements Electriques Moteur | Machine electrique tournante, et notamment alternateur de vehicule automobile, comportant un stator monte elastiquement dans une resine thermoconductrice |
FR2819117A1 (fr) | 2000-12-21 | 2002-07-05 | Valeo Equip Electr Moteur | Alternateur a elements conducteurs en epingle pour vehicule automobile |
WO2002054566A1 (fr) | 2001-01-05 | 2002-07-11 | Valeo Equipements Electriques Moteur | Machine tournante perfectionnee pour vehicule automobile |
WO2002093717A1 (fr) | 2001-05-15 | 2002-11-21 | Valeo Equipements Electriques Moteur | Machine electrique tournante, notamment alternateur pour vehicule automobile |
EP1486075A1 (fr) | 2002-03-08 | 2004-12-15 | Koninklijke Philips Electronics N.V. | Procede et dispositif de transition sans a-coups entre des structures a codage hierarchique a granularite fine |
US20040051409A1 (en) | 2002-09-13 | 2004-03-18 | Denso Corporation | Alternator for an automotive vehicle |
EP1460750A1 (fr) | 2003-03-18 | 2004-09-22 | Denso Corporation | Alternateur pour véhicules automobiles |
EP1482622A2 (fr) | 2003-05-30 | 2004-12-01 | Hitachi, Ltd. | Générateur pour véhicule |
FR2905806A1 (fr) | 2006-09-13 | 2008-03-14 | Valeo Equip Electr Moteur | Arbre de rotor a griffes, rotor a griffes equipe d'un tel arbre et machine electrique tournante equipee d'un tel rotor |
Also Published As
Publication number | Publication date |
---|---|
CN102549891A (zh) | 2012-07-04 |
KR20120091030A (ko) | 2012-08-17 |
IN2012DN02677A (fr) | 2015-09-04 |
BR112012006272A2 (pt) | 2016-05-31 |
FR2950753B1 (fr) | 2012-12-07 |
FR2950753A1 (fr) | 2011-04-01 |
EP2483997A1 (fr) | 2012-08-08 |
CN102549891B (zh) | 2015-06-10 |
KR101705394B1 (ko) | 2017-02-09 |
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