A method for inserting conductive pins from a transfer device to a body of a wound part in order to form an electrical winding of a wound part of a rotary electric machine. The method includes a preparation step, in which the conductive pins are arranged in the spindle body, and a step of positioning the spindle body relative to the body of the wound part. A guide step arranges a guide device to guide the conductive segments in a circumferential and/or radial direction, and a transfer step inserts conductive segments into the corresponding slots.
H02K 15/06 - Embedding prefabricated windings in the machines
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
2.
INTERCONNECTOR ASSEMBLY COMPRISING AN OPTIMISED GASKET
An assembly for an interconnector of an electric machine includes an interconnector housing having a recess opening and one track per phase. Each track includes a connection end to be connected to a phase output, a gasket mounted on the interconnector housing and including a dividing wall partially closing the connection recess opening, and at least one sealing grommet extending from the dividing wall toward the connection recess opening. The grommet includes a conduit extending toward the connection recess opening, a phase output sealing opening passing through the conduit to lead a phase output into the connection recess opening, and a gaiter extending from the dividing wall to the conduit.
A permanent-magnet synchronous rotary electric machine for a self-propelled mobile device includes a stator having slots and a winding including at least three phases. The winding is of the type in which the number of turns N in the stator per phase is equal to the number of conductors in a slot, multiplied by the number P of pole pairs multiplied by the number of slots per pole and per phase, all divided by the number of parallel electrical paths of the conductors in a slot and/or divided by the square root of three if the winding is delta-coupled. The number of turns N per phase in the stator is between 9 and 20.
The invention relates to a power module (300) comprising: - electrical conductors (302), each of which has an upper face (304); - at least one semiconductor component (306) attached to the upper face (304) of one of the conductors (302); and - an overmoulding (310) that extends over at least one portion of the upper face (304) of each of the conductors (304). At least one of the upper faces (304) has, in its overmoulded portion, at least one attachment groove (404) which is filled by the overmoulding (310) and passes through a point (P) on the upper face (304) that experiences a mechanical stress (T) as a result of the overmoulding (310), the attachment groove (404) forming, at this point (P), at a predefined temperature, an angle with the mechanical stress (T) of between 60° and 120°, preferably between 85° and 95°, and more preferably 90°.
A device for controlling an inverter/rectifier capable of being electrically connected to the electrical stator winding of a rotary electric machine also including a rotor, in particular for a vehicle. The device includes at least one temperature sensor, capable of providing a measurement representative of the temperature of the rotor and/or stator of the rotary electric machine, and a temperature estimator module, capable of providing an estimate representative of the temperature of this rotor and/or this stator. A control device generates, in a main mode of operation, setpoints for the inverter/rectifier by using, as a signal representative of the temperature, the measurement provided by the temperature sensor, and the estimate provided by the temperature estimator module, for all or some of the rotation speeds of the rotor.
H02K 11/33 - Drive circuits, e.g. power electronics
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60K 6/26 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
B60K 6/36 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 11/25 - Devices for sensing temperature, or actuated thereby
6.
EPITAXIAL GROWTH METHOD FOR FORMING AN EPITAXIAL STACK, IN PARTICULAR FOR A TRANSISTOR
The invention relates to a method (E100) which comprises: obtaining (E10) a base portion (10) of an epitaxial stack (1a) with a barrier layer (14) made of monocrystalline AlN at the top; growing (E12) an intermediate layer (18) made of polycrystalline and/or amorphous AlN directly on the barrier layer (14); and oxidising (E14) the intermediate layer (18) so as to obtain a cap layer (19) made of polycrystalline and/or amorphous AlO extending directly on the barrier layer (14), so as to entirely replace the intermediate layer (18).
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
H01L 21/28 - Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups
H01L 21/336 - Field-effect transistors with an insulated gate
H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
The invention relates to a stator of an axial flux electric machine, the machine having an axis of rotation, the stator comprising: - a plurality of electrical windings (10), - a plurality of teeth (71) each supporting one of the electrical windings (10); each tooth (71) has a core around which the winding is formed and which extends along the axis of rotation (X) and, at each of its axial ends, an end portion (73) extending transversely to the core, the end portion (73) having an outer main face (86) which faces away from the core and which includes a groove (90) in a central region of said outer main face (86), said groove (90) being configured to reduce the torque ripples that can occur during operation of the axial flux electric machine.
H02K 21/24 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
The invention relates to a stator of an axial flux electric machine , the axial flux electric machine having an axis of rotation (X), the stator comprising: - a plurality of electrical windings (10), - a plurality of teeth (11) each supporting one of the electrical windings (10), - a multifunctional support (12), or interconnection support, configured to support the plurality of teeth (11), and said multifunctional support being provided with electrical interconnection conductors (14) arranged to be connected to the electrical windings (10).
H02K 21/24 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
The invention relates to an axial flux rotary electric machine (1) having an axis of rotation (X), comprising: - at least one rotor (3); - at least one stator (2) arranged face-to-face with said at least one rotor in an axial direction, forming an air gap, this stator comprising: o a plurality of electrical windings (10) which are inscribed between a radially internal contour (15) and a radially external contour (16); - an enclosure (17) in which the stator (2) is placed; and - a distribution chamber (30) for distributing a cooling fluid, in particular a dielectric fluid, this distribution chamber communicating with the enclosure by at least one spray opening (36) passing through an annular wall (22) of this enclosure, which surrounds the radially external contour of the electrical windings, this spray opening (36) being configured to spray cooling fluid coming from this distribution chamber into the enclosure (17).
H02K 21/24 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
10.
A SUPPORT ELEMENT TO SECURE A CABLE IN A ROTARY ELECTRICAL MACHINE
The present subject matter relates to a support element (100) for securing phase cables (300) The support element (100) includes a base structure (102) and one or more clamp members (108). The base structure (102) includes a bottom surface (104) and a top surface (106). The bottom surface (104) of the support element (100) is configured to mount a mounting surface (216). The one or more clamp members (108) is formed integral to the top surface (106) of the support element (100). Each of the one or more clamp members (108) is configured to secure a phase cable (300). The present subject matter also relates to a rotary electrical machine in which the support element (100) is mounted.
A control system for a voltage converter includes a first module for measuring a voltage of the DC voltage source, a module for comparing the measured voltage with a first safety threshold, and a second measurement module for measuring a speed of rotation of the rotary electric machine. A control module generates an open-circuit command which is made up of a command to open the first group of switches and a command to open the second group of switches. If a variation over time of the measured voltage of the DC voltage source is less than a first safety variation. If the speed of rotation measured by the second measurement module is less than a first safety speed.
H02P 3/22 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by short-circuit or resistive braking
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
H02H 7/122 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for convertersEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters
H02P 29/024 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
12.
HEATING CIRCUIT FOR A MOTOR VEHICLE COMPRISING AN ELECTRICAL TRACTION MACHINE
Method for heating a coolant of an electrical traction machine of a motor vehicle, the electrical machine including, in addition to the coolant, a stator including a polyphase winding, the stator being in heat exchange with the coolant, a rotor, and an inverter/rectifier supplying power to the polyphase winding. The inverter/rectifier includes a plurality of switching cells controlled by a control device. The control device of the inverter/rectifier is configured to control the switching cells so as to short-circuit the polyphase winding in predetermined conditions for the purpose of heating the coolant.
H02P 29/62 - Controlling or determining the temperature of the motor or of the drive for raising the temperature of the motor
B60H 1/14 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
F16H 57/04 - Features relating to lubrication or cooling
13.
ASSEMBLY COMPRISING AN ELECTRICAL ENERGY CONVERTER AND A HEAT EXCHANGE DEVICE
The invention relates to an assembly comprising an electrical energy converter (1) and a heat exchange device (5) for exchanging heat with the electrical energy converter (1), the electrical energy converter (1) comprising a housing (11) in which at least one electronic power module (13) is mounted, the module being immersed in a dielectric heat transfer liquid (12) in order to transform an electrical input signal into an electrical output signal, the heat exchange device (5) comprising a wall (7A; 7B) that channels an air flow in order to improve the discharge of the heat present in the housing (11) of the electrical energy converter (1).
The invention relates to a polyphase rotary electric machine (2) having axial electromagnetic flux, comprising: - a rotor which is inserted axially between first and second stators (6, 7) having N phases each, each stator comprising a set of coils (12) which each belong to one of the N phases; and - an interconnector comprising N annular busbars (14) for supplying the N phases, at least one of the coils of each phase being connected to one of the busbars. The busbars are common to the first and second stators.
H02K 21/24 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
H02K 3/52 - Fastening salient pole windings or connections thereto
H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
15.
DEVICE FOR DETERMINING THE ANGULAR POSITION OF A ROTOR
θestestest) of a rotor angular position on the basis of: ○ two sensor signals Si(θ) delivered by position sensors which are functional; and ○ instead of the zero, degraded or erroneous sensor signal, designated by an index n, an estimated signal (Sn_fail) which is delivered by a circuit (106) for reconstructing a sensor signal and which is defined as follows: Formula (I).
G01D 3/08 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
H02P 6/16 - Circuit arrangements for detecting position
The present invention proposes an endshield for an X-axis rotary electric machine comprising a side wall and a transverse wall, the side wall comprising at least three bearing surfaces, the bearing surfaces being axial and regularly distributed circumferentially around the axis X, each axial bearing surface being intended to be in surface contact with a planar surface of a reducer.
The invention relates to a connecting element (600) for thermally contacting an electrical connecting component (3041) of a power module (110) and a heat sink (206), wherein the connecting element comprises at least two dielectric layers (601, 603) and at least two metal layers (602, 604), wherein one of the two metal layers (602) is arranged between the two dielectric layers (601, 603) and one of the two dielectric layers (603) is arranged between the two metal layers (602, 604).
The invention relates to a connecting element (600) for thermally contacting an electrical connecting component (3041) of a power module (110) and a heat sink (206), comprising at least two dielectric layers (601, 603) and a metal layer (602), wherein the metal layer (602) is arranged between the two dielectric layers (601, 603) and comprises an aluminium sheet or plate.
The present invention relates to a power module (300) comprising: - a first electrical connector (106B) made of metal, intended to be connected to a positive terminal of a power supply, for example a DC power supply; - a second electrical connector (108B) made of metal, intended to be connected to a negative terminal of said power supply; - an electrical insulator (304); - controllable high-side semiconductor switches (HS) mounted on an upper face of the first electrical connector (106B), said controllable high-side semiconductor switches being provided with a first main electrode, a second main electrode and a control electrode; the power module being characterized in that a portion of an upper face of the first electrical connector (106B) and a portion of the lower face of the second electrical connector (108B), directly opposite the portion of the first electrical connector (106B), are isolated by the electrical insulator, and in that at least a part (305) of the second electrical connector (108B) extends horizontally between two high-side switches (HS).
H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
H01L 23/373 - Cooling facilitated by selection of materials for the device
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
20.
ELECTRONIC UNIT FOR A VOLTAGE CONVERTER OF A ROTATING ELECTRIC MACHINE
An electronic unit for a voltage converter of a rotating electric machine includes a first busbar including a first plate, a first connection portion projecting from the first plate, on a first side of the first plate. A first connection surface is able to be welded to a second connection surface of a third busbar of a power electronics module by a first laser weld using a first laser beam. A second busbar separate includes a second plate parallel to and located on a second side of the first plate, opposite the first side. The first or second busbar includes a first extension extending in line with the first connection surface, the first extension being able to block the first laser beam. A voltage converter can include the electronic unit, and the electrical assembly can include the voltage converter and a rotating electric machine.
The present subject matter relates to an electric power converter, and more specifically, relates to improved fixation of a module in an electric power converter by means of an elastic member. An electric power converter (100), in accordance with the present subject matter, includes to a housing (102), a module (112) and a supporting element (110). The module (112) includes at least one electronic component, the aforementioned component being in thermal contact with the housing (102). The supporting element (110) includes an over-molded body, disposed within the housing (102). An elastic member (108) is partially over-molded in said body of the supporting element (110) and exerts pressure on the module (112). The module (112) is pushed, in a direction towards the housing (102) and away from the supporting element (110), by the elastic member (108); accordingly improving the structural and operational integrity of the electric power converter (100). The present subject matter also relates to an assembly that includes an electric machine and the electric power converter (100).
A method for discharging an electrical energy storage unit of an electrical circuit includes a first switching system defining a DC/AC voltage converter and interposed between a first electrical sub-circuit, which includes the electrical energy storage unit and the electrical winding of the stator of a rotary electric machine. A second switching system defines a DC/DC voltage converter interposed between the first electrical sub-circuit and a second electrical sub-circuit. At least one electrical consumer forms part of the first electrical sub-circuit. The method includes detecting that the voltage across the terminals of the electrical energy storage unit exceeds a predefined threshold, and controlling at least one of the first switching system, the second switching system and the electrical consumer so as to reduce the voltage across the terminals of the electrical energy storage unit by circulating an additional current in the stator electrical winding, second switching system, or electrical consumer.
B60L 3/04 - Cutting-off the power supply under fault conditions
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
The invention relates to an axial-flux electric machine (10) rotating about an axis of rotation (X) and comprising: - at least one rotationally mobile homopolar rotor (11) having p poles and comprising: • an annular disc (15) having an axis of symmetry coincident with the axis of rotation (X), • p/2 upper studs (16) and p/2 lower studs (17), p being an even whole number, the upper studs (16) being radially further from the axis of rotation (X) than the lower studs (17), the lower studs (17) and the upper studs (16) alternating circumferentially, - at least one concentric rotor winding (20) mounted radially between the upper studs (16) and the lower studs (17), the upper studs (16) and the lower studs (17) not axially facing the rotor winding (20), the upper studs (16) and the lower studs (17) being able to be polarized under the effect of a rotor current (Ir) circulating in the rotor winding (20) so as to form p poles of the rotor (11), and - at least one stator (12), fixed in terms of rotation, comprising at least one stator coil (30), characterized in that the rotor winding (20) is fixed in rotation.
Disclosed is a device (100) for determining the angular position of a rotor (4) of a rotary electric machine on the basis of only two sensor signals delivered by position sensors (20), this device comprising: - a circuit (103) for estimating the position of the rotor, in particular via implementation of a control loop, this circuit (103) delivering as output a signal representative of the position of the rotor, and - a circuit (102) for dynamically compensating for an orthogonality defect between a first input signal (200) obtained from one of the two sensor signals delivered by the one or more position sensors (20) and a second input signal (201) obtained from the other of the two sensor signals delivered by the one or more position sensors (20), this circuit (102) for compensating for an orthogonality defect receiving as input at least: the first input signal (200) and second input signal (201), this circuit (102) for compensating for an orthogonality defect delivering as output an input of the circuit (103) for estimating the position of the rotor, this circuit (102) for compensating for an orthogonality defect being configured to: - dynamically determine, on the basis of the first and second input signals, the value of the orthogonality defect between these two signals, - construct a compensation matrix on the basis of this value thus determined, and - compensate for the orthogonality defect between said input signals (200, 201) by applying this compensation matrix to said input signals.
H02P 6/16 - Circuit arrangements for detecting position
H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
G01D 3/02 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for altering or correcting the transfer function
G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
25.
DEVICE FOR DETERMINING THE ANGULAR POSITION OF A ROTOR OF A ROTARY ELECTRIC MACHINE AND ASSOCIATED METHOD, PROGRAM PRODUCT AND COMPUTER-READABLE MEDIUM
The invention relates to a device (100) for determining the angular position of a rotor (4) of a rotary electric machine on the basis of only three sensor signals delivered by position sensors (20), these signals being a first sensor signal, a second sensor signal, and a third sensor signal, this device comprising: - a circuit (104) for estimating the position of the rotor, in particular via implementation of a control loop, this circuit (104) delivering as output a signal representative of the position of the rotor, and - a circuit (102) for dynamically compensating for angular offset defects, this circuit receiving as input: a first input signal obtained from the first sensor signal, a second input signal obtained from the second sensor signal, and a third input signal obtained from the third sensor signal, this circuit (102) for dynamically compensating for angular offset defects delivering as output a signal that is transmitted to the circuit (104) for estimating the position of the rotor, this circuit (102) for dynamically compensating for angular offset defects being configured to: - dynamically determine the value of a first angular offset defect within one pair of input signals and the value of a second angular offset defect within another pair of input signals, - convert the system formed by the first input signal, the second input signal and the third input signal into a two-phase system via a mathematical transformation using the determined first and second angular offset defects in such a way that the two signals of this two-phase system have an angular offset of 90° between their fundamental components.
H02P 6/16 - Circuit arrangements for detecting position
G01D 3/036 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
The present invention relates to a stator for a rotary electric machine, having an axis X, comprising a yoke, teeth distributed on an inner periphery of the yoke extending from a radially inner face of the yoke toward the inside of the stator and defining, in pairs, slots that open onto the inner periphery of the stator, the stator comprising a winding having phase coils, each one of which phase coils has segment structures inserted into the slots and loop structures linking the segments together, so as to subsequently form winding bundles that extend on either side of the yoke, the stator comprising a volume of varnish distributed in such a way that 60 to 95% of the volume of varnish is distributed in the slots and 5 to 40% of the volume of varnish is distributed in the bundles.
A rotary electric machine includes a stator including a rotor body and a winding, the winding passing through slots of the rotor body, the slots having an isthmus. A rotor includes a rotor body with cavities and permanent magnets, arranged in the cavities, forming magnetic poles having a central axis (d), a quadrature axis (q) being equidistant from two successive central axes (d). The ratio between the width of the isthmus and the width of the slot being greater than or equal to 0.40 and less than or equal to 0.7, and the ratio between an air gap at the central axis and an air gap at the quadrature axis being greater than or equal to 0.8 and less than or equal to 1.5. An electrical assembly includes such a rotary electric machine and an inverter.
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
The invention relates to a heatsink comprising: - an inlet and an outlet for heat-transport fluid, - an exchange surface extending between the inlet and the outlet and intended to exchange heat with the heat-transport fluid, comprising an inlet zone, an outlet zone and at least one intermediate zone, all the zones of the exchange surface having the same surface area, - a plurality of fins projecting from said exchange surface in each of the zones and having a leading edge, a trailing edge, and an angle of incidence measured between the shortest distance segment that connects the leading edge to the trailing edge and the main direction of the fluid, wherein the fins in the inlet, intermediate and outlet zone respectively have a mean inlet, intermediate and outlet angle of incidence, the mean inlet angle of incidence being smaller than the mean intermediate angle of incidence, which is smaller than the mean outlet angle of incidence.
A rotor for a rotary electric machine having an axis of rotation includes a body having cavities includes a first end and a second end that are opposite to each other in the direction of the axis of rotation, and magnets received in the cavities. Also provided is a shaft on which the body is mounted, and a first end disk including a first number of first blades that are able to move a fluid, notably air, from a first radially inner position to a second radially outer position. The first end disk prevents the magnets from exiting the cavities via the first end of the body, and a clamping means presses the first end disk directly or indirectly against the first end of the body.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
111) in the upper face (304) of the electrically-insulating overmoulding (302) so that said opening is comprised in the orthogonal projection of the bottom face of the plastic overmoulding (402) onto the top face (304) of the electrically-insulating overmoulding (302).
A device for determining the angular position of a rotor of a rotary electric machine on the basis of signals delivered by a plurality of position sensors. The device includes a circuit that applies a control loop to estimate the position of the rotor, and that delivers as output a signal representative of the position of the rotor. Also included is at least one circuit for performing dynamic processing of an odd-order harmonic of a signal resulting from the signals delivered by the position sensors.
The invention relates to a secondary resonant circuit (5) for contactlessly transmitting power in a recharging mode through resonant inductive coupling, with a primary resonant circuit (3) comprising at least a first capacitor (Cp) and a first inductor (Lp), this transmission of power being directed to the resistive load (2) coupled to the secondary resonant circuit (5), this resistive load having an equivalent impedance, this secondary resonant circuit (2) comprising: - a second capacitor (Cs) of capacitance Cs and a second inductor (Ls) of inductance Ls, which are coupled magnetically and partially to the first capacitor (Cp) and the first inductor (Lp), - a controlled variable inductor Le(t) designed to be controlled so as to activate a parameteric amplification effect for the current in the secondary circuit, - a decoupling assembly (10).
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
35.
ROTARY ELECTRIC MACHINE COMPRISING A COOLING CHAMBER
121111), one end of which rests on the upper face of the transistor and the other end of which rests on the upper face of the second part, the upper face of the overmoulding having a cavity (C1) that is located at least partially above the upper end of the bridge, the bottom of the cavity comprising a planar surface (SP) contained in a plane forming a non-zero acute angle with the upper face of the transistor (P).
A position measuring device intended for a rotary electric machine. The position measuring device includes a position sensor and a fixing arm projecting with respect to the sensor compartment, wherein the fixing arm has an orifice exhibiting a central axis. The fixing arm has at least one slot made in the periphery of the orifice, the slot exhibiting a depth, in the direction of the central axis as far as a bottom wall, greater than or equal to 2 mm, the slot being configured to receive a tooth of a calibration tool. The invention also relates to the calibration tool cooperating with the position measuring device.
G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
The invention relates to a receiver resonant circuit (2) for contactlessly transmitting power through resonant inductive coupling with a transmitter resonant circuit (1) comprising a first capacitor (C1) and a first winding, the first winding comprising a first inductor (L1) and a first resistor (R1), this receiver resonant circuit (2) comprising: - a second capacitor (C2) having a value C2' and a second winding, the second winding comprising a second inductor (L2) having a value L2' and a second resistor (R2) having a value R2'; - an inverter (24) emulating a variable inductor (L2v), this inductor having a variable value Lp and being in series with the second capacitor (C2), the variable inductor (L2v) being chosen so as to carry out parametric amplification of the electric current in the receiver resonant circuit (2); - a rectifier (25) arranged to draw electric current from the second winding (E2) in order to supply the inverter with power.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
The invention relates to a rotary electrical machine (10) comprising: a stator (11), a rotor (12) and a casing (15) surrounding them, an electronic assembly (24) mounted on the casing (15) and including at least one power component (22), a heat sink (23) capable of cooling the electronic assembly (24), and a cooling chamber (37) allowing a liquid to pass therethrough, said chamber comprising a first part (39) that is delimited by the casing (15) and the heat sink (23) and allows the electronic assembly (24) to be cooled, and a second part (40) that is formed in the casing (15) and allows the machine (10) to be cooled, wherein the heat sink (23) comprises at least one cavity (21) in which the at least one power component (22) is housed, said cavity projecting into the first part (39) of the cooling chamber (37).
The present invention relates to a rotating electrical machine (10) comprising: - a cooling chamber (18) extending circumferentially around the stator body (14), said cooling chamber (18) comprising a radially inner face (29) and a radially outer face (30), - a cooling liquid inlet (31) and outlet (32) angularly offset with respect to one another, a first cooling zone (34.1) and a second cooling zone (34.2) having hydraulic resistances which are adapted so that a first flow rate (Q1) of cooling liquid circulating in said first cooling zone (34.1) is proportional to a first length (L1) of the first circumferential portion (35.1) of the cooling chamber (18) and so that a second flow rate (Q2) of cooling liquid circulating in said second cooling zone (34.2) is proportional to a second length (L2) of the second circumferential portion (35.2) of the cooling chamber (18).
The present invention relates to a method for controlling a rotating electric machine (12) integrated into a hybrid powertrain (10) of a motor vehicle, said method comprising, when the rotating electric machine (12) is in a passive state: - a step of controlling the rotating electric machine (12) in an open-circuit mode in which the electronic switches of the inverter are open, - a step of controlling the electric machine (12) in a short-circuit mode in which the electronic switches of the inverter (20) are in the closed state, and - a step of controlling the electric machine (12) in an intermediate energy-optimizing mode in which an overall energy consumption of the powertrain (10) is reduced compared to the short-circuit mode.
A cover for a rotating electric machine includes an axis of rotation (X), the cover being designed to be arranged on an inverter of the machine. The cover includes a skirt extending in a radial direction and forming a perimeter of the cover, the perimeter defining an inner portion of the cover and an open area arranged in the inner portion and comprising at least one axial opening. The open area extends over at least 50% of the inner portion of the cover.
A rotor for a rotary electric machine that rotates with respect to an axis of rotation, includes a body and permanent magnets. The body includes a plurality of rotor teeth defining cavities in which the permanent magnets are accommodated, each rotor tooth including at least one holding part. The holding part includes a holding portion having a holding face against which a radially outermost face of the permanent magnet bears, a wing remote from the radially outermost face and in the circumferential continuation of the holding portion.
H02K 1/274 - Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
45.
Undervoltage protection circuit for a DC/DC converter and method thereof
The present disclosure relates to an undervoltage protection circuit for a DC/DC converter of an electrified vehicle. The DC/DC converter generally operates in a first precharge stage, a second precharge stage and a buck mode. The undervoltage protection circuit comprises a threshold value switching unit which is connected with a controller and configured for receiving a control signal from the controller and switching among at least two predetermined undervoltage protection threshold values based on the control signal as received. The undervoltage protection circuit also comprises an undervoltage protection unit configured for outputting a signal indicating whether to activate an undervoltage protection based on a comparison between the switched undervoltage protection threshold value and a sampled voltage value from a high voltage side of the DC/DC converter. In the circumstance that the DC/DC converter operates in the buck mode, the undervoltage protection unit will activate the undervoltage protection such as to prevent a large current flowing from a low side voltage side to the high voltage side if the sampled voltage value is less than or equal to the switched undervoltage protection threshold value, and the DC/DC converter will continuously operate in the buck mode if the sampled voltage value is greater than the switched undervoltage protection threshold value. The present disclosure also relates to a method of undervoltage protection for a DC/DC converter of an electrified vehicle.
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02H 7/12 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for convertersEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for rectifiers for static converters or rectifiers
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 1/36 - Means for starting or stopping converters
46.
DEVICE FOR DETERMINING THE ANGULAR POSITION OF A ROTOR OF A ROTARY ELECTRIC MACHINE
Device (45) for controlling an inverter/rectifier (9) of an electrical circuit of a hybrid or electric vehicle, the electrical circuit comprising: - a polyphase stator winding; - a battery (31); at least one electrical energy storage unit (35) connected in parallel with the battery (31); and - the inverter/rectifier (9), connected between the stator winding and the battery (31), and comprising a plurality of controllable switching cells, the device (45) for controlling the inverter/rectifier being configured to control the switching cells in such a way that the time derivative of the phase current in the stator winding has a value that is determined according to: - the value of the voltage of the battery (31); and - one from among the temperature of the electrical energy storage unit (35) and the temperature of the controllable switching cells of the inverter/rectifier (9).
H02P 1/16 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
H02P 1/24 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual AC commutator motor
H02P 29/02 - Providing protection against overload without automatic interruption of supply
H02P 29/024 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
H02P 29/028 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the motor continuing operation despite the fault condition, e.g. eliminating, compensating for or remedying the fault
H02P 29/032 - Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
47.
POWER MODULE WITH OVERMOULDING, DEVICES COMPRISING SUCH A POWER MODULE AND METHOD FOR MANUFACTURING A POWER MODULE WITH OVERMOULDING
A power module having electrical connection parts, preferably made of metal, each having a main plate, the main plates extending in one and the same main plane so as to be substantially coplanar. At least one of the electrical connection parts includes at least one electrical connector projecting from its main plate. At least one transistor is electrically connected between two upper faces of respectively two of the main plates, and an electrically insulating overmolding, for example made of resin, covers each transistor and at least one portion of the upper faces of the main plates.
H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
48.
DEVICE AND METHOD FOR DETERMINING THE ANGULAR POSITION OF A ROTOR OF A ROTARY ELECTRIC MACHINE
A device (100) for determining the angular position of a rotor (4) of a rotary electric machine on the basis of signals supplied by a plurality of position sensors (20), which device comprising: - a circuit (103) estimating the position of the rotor, particularly by producing a control loop, said circuit (103) supplying, at the output, a signal representative of the position of the rotor, and - at least one circuit (102) compensating for predefined harmonics in the signal resulting from the signals supplied by the position sensors (20), said harmonic compensation circuit receiving, at the input: - the signal resulting from the signals supplied by the position sensors (20), and - the signal representative of the position of the rotor, said predefined harmonic compensation circuit (102) supplying, at the output, an input of the circuit (103) estimating the position of the rotor, said predefined harmonic compensation circuit (102) being configured to: - recover, on the basis of the signal representative of the position of the rotor in at least one storage table, a signal reconstructed on the basis of harmonics to be compensated, and - compensate the harmonics by subtracting, from the signal resulting from the signals supplied by the position sensors (20), the signal reconstructed on the basis of said harmonics to be compensated.
The invention relates to a method for winding a polyphase stator (10) with multiple slots per pole and per phase, comprising in particular: - a step of winding at least a portion of at least one first turn (Sp1) of a continuous conductor (C1, C2, C3) according to a base slot pitch (P_b); - a step of applying a special slot pitch (P_r) different from the base slot pitch (P_b); - then a step of winding at least a portion of at least one second turn (Sp2) of said continuous conductor (C1, C2, C3) according to the base slot pitch (P_b); - said at least one first turn (Sp1) and said at least one second turn (Sp2) of a given phase winding (PH1, PH2, PH3) being connected continuously to one another by said continuous conductor (C1, C2, C3).
The invention relates to a method for assembling conductive pins in a transfer device for forming an electrical winding (24) for a wound component of a rotary electric machine (10). A first part (A) of the method (120) comprises at least one supply step (122) comprising arranging the pins of a first assembly of pins (80) in lateral spaces (43) in the transfer device (40); and a second part (B) comprises a raising step (130) in which the pins of a first sub-assembly (80a) are moved so as to create an insertion space (82); an insertion step (131) in which the pins of a second assembly (81) are inserted into the insertion space (82); and a lowering step (132) in which the pins of the first sub-assembly (80a) are moved so as to be circumferentially aligned with the conductive pins of the second assembly (81).
The invention proposes a method for assembling conducting hairpin windings in a transfer device, the transfer device (40) comprising a spindle body (41) and a plurality of guide strips (42), lateral spaces (43) intended to house at least one conducting segment being defined between two adjacent guide strips. The method (120) comprises at least a step (121) of placing at least one group of hairpin windings (36) in a feed device (50); a plurality of feed steps (122), each feed step comprising transferring at least one group of hairpin windings (36) from the feed device (50) to a lateral space (43) of the transfer device (40); and a plurality of rotation steps (123), each rotation step separating at least two feed steps (122) from one another and comprising a movement of rotating the feed device (50) and/or the transfer device (40) so as to allow a next feed step.
The invention provides a method for inserting conductive pins from a transferring device into a wound-part body to form an electrical winding (24) of a wound part of a rotary electric machine (10). The inserting method (100) comprises: a preparing step (101) in which the conductive pins are arranged in the shaft body (41); a step (102) of positioning the shaft body with respect to the wound-part body (21); a guiding step (103) in which a guiding device (62) is arranged to guide conductive segments (19) in a circumferential and/or radial direction; and a transferring step (104) in which the conductive segments are inserted into corresponding slots.
The invention relates to a method (110) for assembling conductive pins in a transfer device, each conductive pin (18) being formed of at least one conductive segment (19) in order to form an electrical winding for a wound part of a rotary electric machine (10), the method comprising: a step (111) of arranging the conductive pins in an intermediate device (70); a step (112) of loading the conductive pins from the intermediate device (70) into the transfer device (40), the loading step being carried out by at least partially winding the intermediate device around the transfer device and/or by rolling the transfer device along the intermediate device and/or by moving the intermediate device longitudinally relative to the transfer device.
Device for determining the angular position of a rotor of a rotary electric machine on the basis of signals delivered by a plurality of position sensors, including a circuit producing a control loop for estimating position of the rotor, delivering at output a signal representative of the position, and a circuit for dynamic normalization by the amplitude of the first harmonic of each signal originating from a position sensor. The circuit receives as input each signal originating from a position sensor, and at least one image of the signal representative of the position of the rotor and is configured to demodulate each signal by the image of the signal, determine, at the end of this demodulation, amplitude of the first harmonic of this signal originating from a position sensor, and normalize each signal by dividing it by the amplitude of the first harmonic of the previously determined signal.
An end shield for a rotary electric machine includes a plate which extends generally transversely in relation to an axis (X), and a skirt which extends generally axially from the plate. The skirt has at least one shoulder which forms an axial stop, the shoulder being intended to axially block a stator body of the rotary electric machine. The shoulder extends only over a portion of the circumference of the skirt.
A stator for a rotary electric machine includes a stator body having an axis (X), and a winding including at least one overhang projecting axially from the stator body and winding ends extending axially beyond the overhang from the stator body. Also included is an interconnector mounted on the overhang of the winding, including an insulating body and at least one track having track ends. At least two winding ends are each assembled with one of the corresponding track ends, and the track ends are symmetrical relative to a plane containing the axis and relative to a plane transverse to the axis.
A cooling system for a rotary electric machine having an axis of rotation includes a cooling jacket suitable for receiving a stator of the rotary electrical machine, a housing receiving the cooling jacket, in which an outer wall of the cooling jacket forms, with an inner wall of the housing, a cooling chamber through which a cooling fluid can flow. A separator element separates an inlet zone of the cooling chamber and an outlet zone of the cooling chamber. The separator element includes a fastening part, of a first length, fastened to the outer wall of the cooling jacket or the inner wall of the housing, a first separating part, of a second length, inclined relative to the fastening part and non-parallel to the fastening part. The first length is less than the second length such that the first separating part includes comprises a first free end that is not directly connected to the fastening part. The invention also relates to an electric machine equipped with such a cooling system.
A stator for a rotary electric machine including a stator body, a winding having at least one bundle axially projecting from the stator body and winding ends extending from the stator body. An interconnector is mounted on the winding, the interconnector including an insulating body and traces including trace ends extending from the insulating body, the winding ends being assembled on the trace ends, wherein the interconnector also includes at least one means for positioning the interconnector on the winding in a radial direction.
H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
H02K 3/38 - Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
59.
ASSEMBLY FOR AN INTERCONNECTOR OF AN ELECTRIC MACHINE AND MACHINE COMPRISING THE INTERCONNECTOR
One aspect of the invention relates to an assembly E for an interconnector E1 intended to be mounted on a supporting part, such as a bearing of a liquid-cooled electric machine, for the purpose of connecting phase outputs (4) of a winding to power electronics. The assembly E comprises an interconnector housing (1) including a connection recess through hole (100) intended to be filled with resin and to have a phase output (4) pass therethrough, and a connection end (114) of a track for connection to the phase output (4) in a connection recess (500). The assembly E further comprises at least one load-bearing body (2) that differs from a bearing, is fastened to the interconnector housing (1) and includes at least one phase output passage (200) and at least one gasket (3), which is mounted in a compressed state between the load-bearing body (2) and the interconnector housing (1) and comprises a sealing opening (300).
H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
H02K 3/52 - Fastening salient pole windings or connections thereto
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 11/33 - Drive circuits, e.g. power electronics
H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
H02K 5/12 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
60.
INTERCONNECTOR ASSEMBLY COMPRISING AN OPTIMISED GASKET
One aspect of the invention relates to an assembly for an interconnector (E1) of an electric machine (M), the assembly including: an interconnector housing (1) comprising a recess opening (10) and one track (11) per phase, each of said tracks having a connecting end (114) for connection to a phase output; a gasket (3) mounted on the interconnector housing (1), comprising a partition wall (30) partially closing the connection recess opening (100), and at least one sealing grommet (34) extending from the partition wall (30) towards the connection recess opening (100). The grommet (34) comprises a conduit (341) extending towards the connection recess opening (100), a phase output sealing opening (300) passing through the conduit (341) for the passage of a phase ouput (4) into the connection recess opening (100) and a bellows (340) extending from the partition wall (30) to the conduit (341).
H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
H02K 3/52 - Fastening salient pole windings or connections thereto
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 11/33 - Drive circuits, e.g. power electronics
H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
H02K 5/12 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
61.
ELECTRONIC UNIT FOR A VOLTAGE CONVERTER OF A ROTATING ELECTRIC MACHINE
The invention relates to an electronic unit (1) for a voltage converter (104) of a rotating electric machine (130), comprising: - a first busbar (8) comprising: - a first plate (2), - a first connection portion (3) projecting from the first plate, from a first side (4) of the first plate (2), and comprising a first connection surface (5) able to be welded to a second connection surface (9) of a third busbar (10) of a power electronics module (110) by a first laser welding operation using a first laser beam, - a second busbar (6) separate from the first busbar (8) and comprising a second plate (12) parallel to the first plate (2) and located on a second side (13) of the first plate (2) opposite the first side (4), wherein the first busbar (8) or the second busbar (6) comprises a first extension (15) extending in line with the first connection surface (5), the first extension (15) being able to block the first laser beam. The invention also relates to a voltage converter (104) comprising such an electronic unit (1). The invention also relates to an electrical assembly (100) comprising such a voltage converter (104) and to a rotating electric machine (130).
Rotary electric machine for a motor vehicle includes a stator, extending along an axis, the stator including a body and a winding provided with lead-out wires extending axially on either side of the stator body. At least one end shield includes a plate extending transversely and a skirt extending axially from the plate, the plate having an inner face oriented towards a lead-out wire of the winding. The inner face includes a main recess which increases the minimum axial distance separating the lead-out wire from the inner face, the main recess having a bottom extending radially.
H02K 5/15 - Mounting arrangements for bearing-shields or end plates
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
63.
SUB-ASSEMBLY OF A ROTARY ELECTRIC MACHINE AND METHOD FOR FORMING SUCH A SUB-ASSEMBLY
Method for forming a sub-assembly (6) of a rotary electric machine employing a magnetic-pulse-crimping station (34) comprising at least one wound member (36) configured to be passed through by a current and to generate as a result a magnetic field, the sub-assembly (6) of the rotary electric machine comprising at least a stator and a ring (20) encircling a body (12) of said stator, the method comprising: - a pre-assembly step during which the ring (20) is positioned around the stator body (12), the assembly formed by the ring and the stator body being housed inside the wound member (36) of the magnetic-pulse-crimping station; - a step of energizing the wound member (36) electrically; - a step of magnetic-pulse crimping in which the ring (20) is crimped to the stator body (12) via cold deformation of the ring (20) under the effect of a magnetic field.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
B21D 26/14 - Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces applying magnetic forces
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
64.
ROTATING ELECTRIC MACHINE CASING AND ROTATING ELECTRIC MACHINE
The invention relates to a casing (28) for a rotating electric machine (1) having an axis of rotation (A), the casing (28) comprising: - a body (7) comprising a radially inner surface (42) able to bear a stator (10) of the rotating electric machine (1) and comprising: - a pocket (11) forming a cooling chamber (23) able to receive a cooling fluid, the pocket (11) extending over all or part of the periphery of the axis of rotation (A), - an envelope (14) at least partially overmoulded on the pocket (11), - a first lateral wall (6) able to support a rotor shaft (4) in rotation, in particular by way of a first rolling bearing (18), and situated at an axial end of the casing (28). The invention also relates to a rotating electric machine comprising such a casing.
An electrical conductor for a rotating electrical machine wound component includes a body formed of an electrically conductive material and a coating layer formed of an electrically insulating material, the coating layer partially covering the body. The conductor is formed of a first portion, referred to as the main portion, in which the body is covered by the coating layer, a second portion, referred to as the intermediate portion, in which the body is covered with residue of the coating layer, and a third portion, referred to as the stripped portion, in which the body is bare. The intermediate portion is arranged between the main portion and the stripped portion.
H02G 1/12 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
66.
POSITION MEASURING DEVICE FOR ROTARY ELECTRIC MACHINE
According to the invention, the device comprises an electrical connector (14) separated from the support plate and extending in an axial direction from the rotor and beyond the end shield, the electrical connector being positioned in an outer portion (10) axially separated from the measuring end by the end shield, the measuring device comprising at least one connecting pin (13) extending axially from the electrical connector to the support plate.
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
H02K 11/25 - Devices for sensing temperature, or actuated thereby
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
67.
WINDING BASED ON A TYPOLOGY OF A MAGNET-BASED SYNCHRONOUS ROTATING ELECTRIC MACHINE FOR SELF-PROPELLED MOBILE DEVICE
One aspect of the invention relates to a permanent-magnet-based synchronous rotating electric machine (1, 2, 3, 4, 5, 6) for a self-propelled mobile device comprising a stator comprising slots and a winding comprising at least three phases, wherein the winding is of the type such that the number of turns N in the stator per phase is equal to the number of conductors in a slot, multiplied by the number P of pole pairs multiplied by the number of slots per pole and per phase, all divided by the number of parallel electrical paths of the conductors in a slot and/or divided by the square root of three if the winding is delta-connected, characterized in that the number of turns N per phase in the stator is between 9 and 20.
An electronic system includes a power electronics module for converting a DC current to an AC current. The power electronics module includes a first busbar and a second busbar for supplying the power electronics module with the DC current, a third busbar able to supply a phase winding of a rotating electric machine, and a control pin receiving a control signal for driving the power electronics module. An electronic control module separate from the power electronics module is configured so as to generate the control signal. The electronic control module includes an electronic measuring device, a support including an opening and carrying the electronic control module on a first side of the support, a measurement housing including a cavity, the measurement housing being located on a second side of the support opposite the first side of the support. The electronic measuring device penetrates into the opening in the support and into the cavity in the measurement housing. A sealing means providing a seal between the measurement housing and the support.
A winding for an active portion of a rotary electric machine has at least one phase system including a plurality of phases each including a first energizing pin and a second energizing pin each forming a phase input or output. Each energizing pin includes an energizing end that extends out of the slot and each energizing end that forms a phase output being electrically connected to an energizing end that forms a phase input of a different phase, in order to achieve a delta configuration. The winding includes a first set including at least one energizing end forming a phase input and at least one other energizing end forming a phase output, and a second set including at least one energizing end forming a phase input and at least one other energizing end forming a phase output.
A bearing for a rotating electric machine. The bearing includes a plastic body and at least one electrical conductor fixed to the plastic body in a non-detachable manner.
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 11/21 - Devices for sensing speed or position, or actuated thereby
H02K 11/25 - Devices for sensing temperature, or actuated thereby
H02K 11/27 - Devices for sensing current, or actuated thereby
71.
ELECTRICAL MACHINE FOR TRACTION SYSTEM FOR SELF-PROPELLED MOBILE DEVICE WITH OPTIMIZED AIR COOLING
One aspect of the invention relates to a traction system S comprising an electrical machine 1 for a self-propelled mobile device. The electrical machine (1) comprises a rotor (11), a stator (13) comprising a ring (132) comprising an outer surface (1321) and a cylindrical inner surface (1320) mounted around an outer surface of the lamination stack (131), a first and a second bearing (10, 12) supporting the stator (13) and the rotor (11), the second bearing comprising a fitting (122) connected to an air supply duct (210) of an air supply circuit (21) supplying a coolant circuit (F) of the machine comprising at least a rotor cooling duct (F110) passing through the rotor (11) axially and opening axially on either side, and stator cooling ducts (F132) passing through the ring (132) between the inner surface (1320) and the outer surface (1321).
H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 9/04 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
H02K 11/33 - Drive circuits, e.g. power electronics
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
The present invention proposes a converter comprising at least one switching arm (16), comprising: a ground terminal (17), a supply terminal (18), a first and a second power component (Q1, Q2) and a phase terminal (19). The voltage converter (15) furthermore comprises a protection device (22) for protecting the switching arm (16), configured to detect a fault mode in which the first and the second power component (Q1, Q2) are in the on state, the protection device (22) comprising a measuring module (23) designed to emit an offset voltage based on a measured voltage of the switching arm and on a reference voltage, and a detection module (24) designed to emit an integral signal corresponding to the integral of the offset voltage.
H02M 1/38 - Means for preventing simultaneous conduction of switches
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 7/219 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
H02M 7/5395 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
The invention relates to a wound stator (8) comprising at least one body (12) and an electrical insulator, the body (12) comprising a plurality of notches (22) receiving conductive elements (24a) of an electrical winding (24), each of the notches (22) comprising two side walls, which extend generally radially, and a bottom wall, which connects the two side walls, the electrical insulator being disposed in each of the notches (22) between the conductive elements (24a) and the walls of the corresponding notch (22), and in such a way that a zone of coverage of the electrical insulator is formed against one of the side walls of the notch (22).
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
A device for controlling an inverter/rectifier (20) able to be electrically connected to the stator electric winding (10) of a rotary electric machine (7) also comprising a rotor, especially for a vehicle, the device comprising: at least one temperature sensor able to deliver a measurement representative of the temperature of the rotor and/or of the stator of the rotary electric machine; and a temperature-estimating module able to deliver an estimation representative of the temperature of this rotor and/or of this stator, the control device generating, in a principal operating mode, inverter/rectifier setpoints using, as signal representative of temperature: the measurement delivered by the temperature sensor, and the estimation delivered by the temperature-estimating module, for all or some of the speeds of rotation of the rotor.
H02P 1/46 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
H02P 25/026 - Synchronous motors controlled by supply frequency thereby detecting the rotor position
H02P 25/03 - Synchronous motors with brushless excitation
H02P 29/032 - Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
H02P 29/60 - Controlling or determining the temperature of the motor or of the drive
H02P 29/62 - Controlling or determining the temperature of the motor or of the drive for raising the temperature of the motor
H02P 29/64 - Controlling or determining the temperature of the winding
H02P 29/66 - Controlling or determining the temperature of the rotor
B60K 6/00 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
75.
ROTATING ELECTRIC MACHINE PROVIDED WITH A COOLING CHAMBER
A rotary electric machine, in particular for a motor vehicle, having a stator including a stator body and a winding, the stator body having a yoke and teeth coming from an internal periphery of the yoke. At least one bearing is provided with a recess intended to receive a means for guiding a shaft in rotation. A cooling chamber is disposed around the stator body and in which a cooling liquid circulates. At least an external portion of the yoke is made of a magnetic composite material, the cooling chamber being delimited at least in part on the one hand by an external periphery of the yoke of the stator body and on the other hand by an internal periphery of the bearing.
H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
76.
ELECTRONIC COMPONENT FOR CONTROLLING AN INVERTER/RECTIFIER
Electronic component (35) for controlling an inverter/rectifier (20) able to be electrically connected to the electrical stator winding (10) of a rotating electric machine (7), this rotating electric machine (7) having a permanent-magnet rotor (12), in particular for a vehicle, the component (35) being configured to selectively apply, to this inverter/rectifier (20): - a first command, being a pulse width modulation command, and - a second command, being a full-wave command, the electronic component (35) also being configured to: - receive at least one of an item of information representative of the temperature of the permanent magnets and an item of information representative of the value of the voltage on the DC output of the inverter/rectifier (20), - determine the value of a basic speed for the switch between the first command and the second command on the basis of the at least one of the item of information representative of the temperature of the permanent magnets of the rotor and the item of information representative of the value of the voltage on the DC output of the inverter/rectifier (20), and - apply one of the second command and of the first command instead of the other of the first command and the second command when the value of the basic speed thus determined is reached.
H02P 27/04 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
The invention relates to a rotor (1) for a rotary electric machine, mounted with the ability to rotate about an axis of rotation (X-X') and comprising: - two pole wheels (8a, 8b) each comprising an end plate (18) and claws (9a, 9b) oriented axially towards the end plate (18) of the other pole wheel (8a, 8b), - a field coil (10) comprising a plurality of turns (11) mounted on a cylindrical core (34) and equipped with an insulator (20), said rotor (1) having first and second recesses (13, 14) so as to reveal, axially, at least one turn (11) of the field coil (10).
The invention relates to a rotary electric machine (7), comprising: - a stator (10) comprising a polyphase electrical winding, and - a rotor (12) which can rotate about an axis (X), the machine (7) being designed in such a way that the product in mm2 of the external diameter (D) and the axial dimension (L) of the frame (15) of the stator (10) satisfies the following relation: (formula AA), Rs denoting the resistance of a phase of the electrical stator winding, Is denoting the maximum effective value of the phase current, and N denoting the number of phases of the electrical stator winding.
H02K 1/12 - Stationary parts of the magnetic circuit
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
B60K 6/26 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
The present invention relates to a pressure and guiding system (7) configured to enable the insertion of a tube (5) into a housing (6) of a cooling circuit of an electronic assembly (1) comprising an electronic system (3), the system (7) being composed of at least two portions (71, 72); a first portion (71) comprises at least one pressure element (711) and a second portion (72) of the pressure and guiding system (7) comprises at least one guiding element (721).
SHANGHAI VALEO AUTOMOTIVE ELECTRICAL SYSTEMS CO., LTD. (China)
VALEO EQUIPEMENTS ELECTRIQUES MOTEUR (France)
Inventor
Wang, Jian
Yu, Guodong
Verot, Jacques
Abstract
The invention relates to a rotary electric machine (1) able to be fixed to a transmission system, notably to a gearbox, the rotary electric machine (1) having an axis of rotation (A) and comprising: -a stator (2), -a shaft (4) comprising a first end (37), the first end (37) being free and comprising a driving element (13) able to drive a rotary element of the transmission system, -a rotor (3), the rotor being fixed to the shaft (4), -a casing (41) in which the stator (3) is fixed and comprising a first bracket (6) and a second bracket (5), -a first bearing (12), notably a first rolling bearing, mounted in the first bracket (6) and guiding the rotation of the shaft (4), -a second bearing (11), notably a second rolling bearing, mounted in the second bracket (5) and guiding the rotation of the shaft (4), -a first seal (14), distinct from the first bearing (12), the first seal (14) contributing to sealing between the first bracket (6) and the shaft (4), wherein the shaft (4) comprises a sealing land (42) axially between the first bearing (12) and the rotor (3), the first seal (14) being in contact with the sealing land (42).
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
A regulating module for a rotary electric machine having an operating mode in which a battery of the vehicle is disconnected. The regulating module includes a rotor module and a stator module. The rotor module is arranged to generate a first intermediate setpoint (I_RotRef) on the basis of which is generated the first output quantity (V_Rot) for controlling the rotor, said first intermediate setpoint being determined on the basis of a power potential reference signal (Pdc_MaxRef) and of a speed of rotation (W) of the rotor and being independent of a power or of a control torque of the machine. The stator module is arranged to generate a second intermediate setpoint on the basis of which is generated the second output quantity for controlling the stator, said second intermediate setpoint being determined on the basis of the output voltage of the machine.
H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
H02P 9/48 - Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
82.
METHOD FOR DISCHARGING AT LEAST ONE ELECTRICAL ENERGY STORAGE UNIT OF A CIRCUIT
Method for discharging at least one electrical energy storage unit of an electrical circuit, especially a capacitor, the electrical circuit further comprising: - a first switching system defining a DC/AC voltage converter and interposed between a first electrical sub-circuit to which the electrical energy storage unit belongs and the electrical winding of the stator of a rotary electric machine, - a second switching system defining a DC/DC voltage converter interposed between the first electrical sub-circuit and a second electrical sub-circuit, and - at least one electrical consumer belonging to the first electrical sub-circuit, in which method: - it is detected that the voltage across the terminals of the electrical energy storage unit exceeds a predefined threshold value, and - at least one of the first switching system, of the second switching system and of the electrical consumer are controlled so as to make the voltage across the terminals of the electrical energy storage unit decrease by making an additional current flow through the electrical stator winding, or through the second switching system, or through the electrical consumer.
H02M 1/32 - Means for protecting converters other than by automatic disconnection
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
83.
ROTATING ELECTRICAL MACHINE EQUIPPED WITH A ROLLING BEARING PRELOADING MEMBER
An assembly for a rotary electric machine includes a bracket having a recess for a rolling bearing, and a preloading member for preloading the rolling bearing, intended to be disposed axially between the end wall of the recess and the rolling bearing. Also included is a holding member for holding the rolling bearing, intended to be disposed radially between the rolling bearing and a lateral wall of the recess. The holding member for holding the rolling bearing is arranged so as to make it possible to axially hold the preloading member in the recess of the bracket before the rolling bearing is inserted into the recess, during a phase of assembly of the rotary electric machine.
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
A winding for an active part of a rotary electric machine having at least one phase system. The winding includes a plurality of phases each including a first power supply pin and a second power supply pin each forming a phase input or output, each power supply pin including a power supply end that extends outside the slot and extends a conductive segment that extends inside the slot. At least one portion of a first power supply end is arranged on an inner periphery of the winding, the first end extending a conductive segment arranged in an external layer and at least one portion of a second power supply end is arranged on an outer periphery of the winding, said second end extending a conductive segment arranged in an internal layer, the inner periphery being closer to the axis than the outer periphery and the internal and external layers forming edge layers.
The front support (22) or the rear support (23) of a rotating electrical machine equipped with a duct (2). An axial fan (7) exactly within parallel to the duct (2) is mounted with the rotor shaft (9) for an integral rotation with the rotor.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
F04D 29/58 - CoolingHeatingDiminishing heat transfer
F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps
86.
Electronic control system for electric machine and electric assembly
Electronic control system for electric machine and electric assembly. The electronic system includes an electronic power module for converting a DC current into an AC current, and an electronic control module configured to generate a control signal for the electronic power module. The electronic control module includes a first electronic sub-assembly including at least a first trace and at least one electronic control component, the at least one electronic control component being electrically connected to the at least one first trace. A second electronic sub-assembly, separate from the first electronic sub-assembly, includes an electronic control device for generating the control signal and/or an electronic measuring device for measuring an operating parameter of the electronic power module. The second electronic sub-assembly being connected to the first electronic sub-assembly by a first control pin. An electric assembly includes the electronic system and a rotating electric machine.
H02M 7/537 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
87.
INTERCONNECTION DEVICE FOR A ROTATING ELECTRICAL MACHINE
The present invention proposes a device (2) for interconnecting phase outputs of a machine (3) of axis X with a power stage, the device comprising a support (200) carrying at least one electrical conductor (23) suitable for electrically connecting the phase outputs with the power stage, the support (200) being suitable for being mounted on a wall (31) transverse to the axis X of a flange of the machine (30), this transverse wall having an outer diameter (δ), at least one phase output opening (330) in a radially external zone and at least one central opening (310) in a radially internal zone, the support (200) extending radially between an outer diameter (φ2) at least partially covering the phase output opening (330) and an inner diameter (φ1) at least partially exposing the central opening (310) provided in this transverse wall (31).
An assembly includes a rotary electric machine, and an inverter electrically connected to the rotary electric machine. The inverter includes a plurality of power modules, each power module including a first and a second lateral wall, a heat sink having fins disposed on each of said lateral walls, and an electronic module for controlling the plurality of power modules. An interconnector has a first face to which the plurality of power modules are fixed perpendicularly with respect thereto. The power modules are all concentrated over an angular portion (α) of the interconnector, the predefined portion (α) being less than 360°.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
H02K 9/22 - 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
H02K 11/33 - Drive circuits, e.g. power electronics
B60L 53/20 - Methods of charging batteries, specially adapted for electric vehiclesCharging stations or on-board charging equipment thereforExchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
B60K 1/00 - Arrangement or mounting of electrical propulsion units
89.
ROTATING ELECTRIC MACHINE FOR FULL-WAVE CONTROL AND WITH PULSE-WIDTH MODULATION AND ELECTRICAL ASSEMBLY
The invention relates to a rotating electrical machine comprising: - a stator (2) comprising a rotor body (9) and a winding (8), the winding (8) passing in the notches (21) of the rotor body (9), the notches having an isthmus, - a rotor (3) comprising a rotor body (24) with cavities (33, 34, 35, 36, 38, 39) and permanent magnets (14, 15, 27, 28, 29, 30, 31, 32), disposed in the cavities, forming magnetic poles (25, 26) having a central axis (d), a quadrature axis (q) being equidistant from two successive central axes (d), the ratio (C1) between the width of the isthmus and the width of the notch (21) being greater than or equal to 0.40 and less than or equal to 0.7, the ratio (C2) between an air gap at the central axis and an air gap at the quadrature axis being greater than or equal to 0.8 and less than or equal to 1.5. The invention also relates to an electrical assembly comprising such a rotating electrical machine and an inverter.
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
Commutator (1) for a rotor (4) for a rotary electric machine, having a longitudinal axis (X-X) and comprising: - a lower collecting ring (10a) and an upper collecting ring (10b) which are separated from each other by a annular axial space, - a spacing ring (20) which is received in the annular axial space, - a lower line (16a) which is electrically connected to the lower collecting ring and an upper line (16b) which is electrically connected to the upper collecting ring, - a protection element (19) comprising an electrically insulating guiding zone (191b) which is arranged between the upper line (16b) and the lower collecting ring (10b), characterised in that the spacing ring (20) comprises at least one internal means (202) and the protection element (19) comprises at least one external means (196), the internal means cooperating with the external means so as to prevent the spacing ring from rotating relative to the protection element.
H02K 13/00 - Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windingsDisposition of current collectors in motors or generatorsArrangements for improving commutation
H02K 13/02 - Connections between slip-rings and windings
The invention relates to a rotor (3) for a rotary electric machine (1) having an axis of rotation (A) and comprising: - a body (15) comprising cavities (24) and comprising a first end (33) and a second end (34) that are opposite to one another in the direction of the axis of rotation A, - magnets (23) received in the cavities (24), - a shaft (4) on which the body (15) is mounted, - a first end disc (16) comprising a first number of first blades (18) that are able to move a fluid, in particular air, from a first, radially inner position to a second, radially outer position, the first end disc (18) preventing the magnets (23) from exiting the cavities (24) via the first end (33) of the body (15), - a clamping means (22, 37) pressing the first end disc directly or indirectly against the first end of the body. The invention also relates to a rotary electric machine comprising such a rotor.
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
92.
DEVICE FOR DETERMINING THE ANGULAR POSITION OF A ROTOR OF A ROTATING ELECTRIC MACHINE
Device (100) for determining the angular position of a rotor (4) of a rotating electric machine on the basis of signals delivered by a plurality of position sensors (20), this device comprising: - a circuit (103) producing a control loop to estimate the position of the rotor and delivering, as output, a signal representative of the position of the rotor, and - at least one dynamic circuit (102) for processing an odd order harmonic of a signal resulting from the signals provided by the position sensors (20).
The invention relates to a rotating electrical machine (1) comprising: - a stator (14), - a rotor (3), a housing (28), the stator (14) being attached to the housing, - a cooling chamber (16), - a phase change fluid contained at least partially in the cooling chamber, the phase change fluid being able to change from a liquid phase to a gaseous phase, - a measuring device designed to provide a value of a parameter varying during the formation of bubbles when the phase change fluid changes to the gaseous phase.
H02K 9/20 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
H02K 11/20 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
H02K 9/24 - Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium
94.
Device for transmitting power contactlessly through resonant inductive coupling for recharging a motor vehicle
Transmitter or receiver resonant circuit for carrying out contactless power transmission via resonant inductive coupling to a receiver or transmitter resonant circuit, comprising a first capacitance and a first winding, the first winding comprising an inductance and a first resistance, the transmitter resonant circuit comprising a second capacitance of value C2′ and a second winding, the second winding comprising a second inductance of value L2′ and a second resistance of value R2′, the transmitter resonant circuit having a natural angular frequency u>2 such that w2=1/V(L2′×C2′) and a natural frequency f2 such that f2=w2/(2π), characterized in that the value of the second inductance varies in a predetermined manner.
An electronic system includes a casing including a first bearing surface, a first busbar attached to the casing and including a first connection end having a first connection surface, and an electronic unit having a second bearing surface and including a second busbar having a second connection end having a second connection surface. The second bearing surface is intended to slide on the first bearing surface when the electronic unit is inserted into the casing. One from among the first bearing surface and the second bearing surface includes a ramp that is inclined relative to the insertion direction for deforming the second busbar so as to bring the second connection surface closer to the first connection surface when the electronic unit is inserted into the casing. An electrical assembly may include such an electronic system and a rotary electric machine.
H02K 11/33 - Drive circuits, e.g. power electronics
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
H02G 5/06 - Totally-enclosed installations, e.g. in metal casings
H02K 5/16 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
H02K 5/18 - Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
H02M 7/537 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
96.
AXIAL-FLUX INDUCTOR FOR A ROTARY ELECTRICAL MACHINE PROVIDING TRACTION
The invention relates to a p-poles homopolar axial-flux inductor (11) for a rotary electrical machine rotating about an axis of rotation, notably a machine providing traction, characterized in that it comprises • - an annular disc (16) with an axis of symmetry that is coincident with the axis of rotation, • - p cleats (19, 20) indissociably secured to the annular disc (16), p being an even-numbered integer • - a concentric induction winding (12) mounted between the cleats (19, 20), the cleats (19, 20) not axially facing the induction winding (12), the cleats (19, 20) being able to be polarized under the effect of the induction current (11) circulating through the induction winding (12) so as to form the p poles of the inductor (11).
H02K 21/24 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
H02K 23/66 - Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
The invention relates to a switch system (1) comprising a power line (2) for supplying a charge from a voltage source (+Vbat), said power line having a main switch (Q1) comprising a first main terminal (D) and a second main terminal (S), between which a main current (Ip) is intended to pass, and a control terminal (G) for selectively placing the main switch (Q1) in a closed, open or semi-closed state, the main switch (Q1) in its semi-closed state being equivalent to a variable resistor controlled by the control terminal and connected between the first and the second main terminal, characterized in that the switch system (1) further comprises a current-limiting device (3) designed to, when the main current (Ip) exceeds a maximum current threshold, decrease a control current (Ig) entering the control terminal (G), so as to cause the main switch (Q1) to transition from the closed state to the semi-closed state, so as to limit the main current.
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
98.
VOLTAGE CONVERTER AND METHOD FOR MANUFACTURING A VOLTAGE CONVERTER
The voltage converter (104) comprises:—a power module (110) comprising at least one controllable switch intended to switch in order to perform a voltage conversion;—a heat sink (206) having an upper face opposite a lower face of the power module (110) for dissipating heat emitted by the power module (110); and—at least one resilient element (308) bearing on an upper face of the power module (110) in order to hold the power module (110) in place relative to the heat sink (206).
The voltage converter (104) comprises:—a power module (110) comprising at least one controllable switch intended to switch in order to perform a voltage conversion;—a heat sink (206) having an upper face opposite a lower face of the power module (110) for dissipating heat emitted by the power module (110); and—at least one resilient element (308) bearing on an upper face of the power module (110) in order to hold the power module (110) in place relative to the heat sink (206).
Each resilient element (308) is rigidly connected to the heat sink (206).
a control module 12 for controlling a first group of switches so as to close chosen from the high group or the low group, if the comparison module 11 indicates that the measured voltage V is higher than the first safety threshold OV1.
H02H 7/08 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
H02P 29/024 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
B60L 50/51 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
H02H 7/122 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for convertersEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters
H02P 3/18 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
H02P 11/06 - Arrangements for controlling dynamo-electric converters for controlling dynamo-electric converters having an AC output
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
100.
Method for controlling an electric rotary machine operating as a generator and corresponding control system for reducing the voltage in the network in the event of a cutoff
A method for controlling a multi-phase rotary electric machine is disclosed. The stator of the machine is controlled by a control bridge having a plurality of parallel mounted switching arms, with each arm comprising a high-side switch and a low-side switch connected at a center tap connected to a phase of said rotary electric machine. The machine operates as a generator and is connected to an electrical network on board a motor vehicle. The method involves short-circuiting a phase winding of the stator when a measurement of the voltage of said network exceeds a first predetermined value, and after this, activating a switching arm, the center tap of which is connected to said at least one short-circuited phase winding, during which the intensity in the short-circuited winding is measured, if the measured intensity is positive, the high-side switch of said activated switching arm is moved to the closed position, otherwise, it is moved to the open position.
H02P 23/00 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control
H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
H02P 101/45 - Special adaptation of control arrangements for generators for motor vehicles, e.g. car alternators
