Abstract: A DC electrical power distribution device for an aircraft propulsion duct having a main power supply line configured to supply at least one propulsion assembly of the propulsion duct with power from a high-voltage DC electrical power supply source and including main switching means and fast switching means for connecting the source to the propulsion assembly. The device can include a secondary power supply line configured to be connected to another distribution device and configured to supply the propulsion assembly with power from the other device when the main switching means are open.

Abstract: A high-voltage DC electrical distribution plate with two integrated electromechanical power contactors. Chambers of fixed and movable contact terminals of the two contactors are disposed on a first of the major surfaces of the plate, while on the second major surface of the plate are disposed complementary assemblies of the two contactors, each complementary assembly including a motor intended to activate the contact terminals of the contactor in question. The other components disposed on the second major surface of the plate leave a free space constituting an area of attachment of the complementary assemblies of the two contactors, this area being dimensioned to allow the arrangement of the complementary assemblies of the contactors in two orthogonal orientations allowing the motors to activate contact terminals of different sub-assemblies of the contact chambers and thus to make the parallel or series configurations of the contactors.

Abstract: A cooling system for a drive device with several electric machines, the cooling system including a hydraulic circuit for a coolant including a cooling part in a gearbox of the drive device for cooling the gearbox, and an air/coolant heat exchanger including cooling walls forming channels for circulating coolant for the cooling thereof, an air cooling circuit including a plurality of fans, rotationally coupled to the gearbox, a cooling part between the cooling walls of the air/liquid heat exchanger, wherein the air sucked in and propelled by the fans circulates by sweeping over the cooling walls in order to cool them.

Abstract: An electrical machine for use in an aircraft. The electrical machine includes a rotor that includes a plurality of rotor poles, and a stator including a plurality of phases. Each respective phase occupies at least one elementary block. The at least one elementary block of each phase includes a set of conductors of the respective phase wound around a plurality of slots of the respective elementary block in a concentrated winding configuration. The stator further includes at least one sensor located between two elementary block. The at least one sensor being configured to measure at least one parameter of the rotor.

Abstract: A smart motor having an electromechanical converter endowed with a rotating portion defining an axial direction and a radial direction, an electronic control unit, an electrical filter and a housing having a cooling device, the electromechanical converter, the electronic control unit and the filter being accommodated inside the housing, and the electronic control unit comprising an electrical converter configured to power the electromechanical converter. The housing is cylindrical and the electrical converter includes one or more electronic board(s) forming a hollow cylinder.

Abstract: A contactor including a first electrical contact, a second electrical contact, and a movable bridge displaceable between a closed position and an open position, the contactor further including: a lower arc guide including a first portion connected to the first electrical contact, and a second portion connected to the second electrical contact, an upper arc guide including a first portion facing the first portion of the lower arc guide, a second portion facing the second portion of the lower arc guide, and a fuse connecting the first portion and the second portion of the upper arc guide.

Abstract: An integrated unit for de-icing the propeller blades and the nose of a turbomachine including: a rotary transformer including a static part and a rotary part; a DC-to-AC voltage converter connected at its output to the static part of the rotary transformer and intended to be connected at its input to a DC electrical power supply, and a power switch connected to the rotary transformer and configured to transmit electrical power to at least one pair of propeller blades and to the nose cone of the turbomachine.

Abstract: A method for determining a first setpoint for a first vector component of the phase currents along a first axis of a rotating reference frame connected to a rotor of the electric generator, and a second setpoint for a second vector component of the phase currents along a second axis of the rotating reference frame. The second vector component of the phase currents is to bring about defluxing of the rotor; and controlling the rectifier on the basis of the first and second setpoints for the vector components of the phase currents. The first setpoint for the first vector component of the phase currents is determined on the basis of an external feedback loop designed to feedback-control a voltage on a DC bus or to regulate a current from a battery connected to the DC bus.

Abstract: A power contactor including: a fixed part; a movable part able to come into contact with the fixed part and to move between an open position and a closed position of the contactor, the movable part including at least one power contact; an auxiliary contact and a pyrotechnic actuator, the auxiliary contact and the pyrotechnic actuator being placed in parallel with the power contact, and the pyrotechnic actuator being configured to be triggered during a levitation of the contactor in such a way as to move the contactor into the open position; and a motor configured to actuate the movable part and to put it in contact with the fixed part characterized in that the power contact and the auxiliary contact are desynchronized in such a way that when the contactor is closed, the power contact comes into contact with the fixed part before the auxiliary contact.

Abstract: An electrical machine for use in an aircraft, including a rotor. The rotor includes a plurality of rotor poles, and a stator including a plurality of phases. Each respective phase occupies at least one elementary block and the at least one elementary block of each phase includes a set of conductors of the respective phase wound around a plurality of slots of the respective elementary block in a concentrated winding configuration. A mechanical shift angle between the respective concentrated windings of each pair of adjacent elementary blocks is greater than a rotor pole pitch. The rotor pole pitch is an angle between adjacent poles of the rotor.

Abstract: A power contactor including: a fixed part; a movable part able to come into contact with the fixed part and to move between an open position and a closed position of the contactor, the movable part including at least one power contact; an auxiliary contact and a pyrotechnic actuator, the auxiliary contact and the pyrotechnic actuator being placed in parallel with the power contact, and the pyrotechnic actuator being configured to be triggered during a levitation of the contactor in such a way as to move the contactor into the open position; and a motor configured to actuate the movable part and to put it in contact with the fixed part characterized in that the power contact and the auxiliary contact are desynchronized in such a way that when the contactor is closed, the power contact comes into contact with the fixed part before the auxiliary contact

Abstract: A power contactor including: a fixed part including two fixed elements; a moveable part able to come into contact with the fixed part and to move between an open position and closed position of the contactor, the moveable part including two switching elements and two conducting elements, and the distance between the fixed part and the two conducting elements being greater than the distance between the fixed part and the two switching elements in open position of the contactor, such that the switching elements come into contact with the fixed part before the conducting elements when the contactor changes from open position to closed position; and a motor configured to actuate and place the moveable part in contact with the fixed part.

Abstract: An autonomous impact detection device includes at least one impact detector; at least one wireless transmission device configured to transmit the information collected by the impact detector; at least one energy storage device configured to supply the impact detector and the wireless transmission device with energy; at least one Seebeck module configured to supply the storage device with energy when a temperature gradient is applied thereto; the wireless transmission device being configured to supply the storage device with energy when the temperature gradient to which the Seebeck module is exposed is not sufficient.

Abstract: A filter includes a positive busbar and a negative busbar that have a positive terminal and a negative terminal, respectively; at least one positive output terminal and at least one negative output terminal, respectively; and two portions, respectively, each portion having parallel folds to define planes which succeed one another. Each plane is inclined relative to the next plane. One of the portions is an internal portion that is fitted inside the other portion, which is an external portion. Each plane of one portion extends in parallel with and facing an associated plane of the other portion. Differential mode capacitors connected between the two portions.

Abstract: A device for connection to an on-board multiplexed network of communication by multi-mode optical fibers for an aircraft, the device comprising a first optical component for modifying the spatial profile of a light beam, comprising a multi-mode optical input terminal configured to be connected to a first multi-mode optical fiber and single-mode optical output terminals, and a second optical component for modifying the spatial profile of a light beam, comprising single-mode optical input terminals and a multi-mode optical output terminal configured to be connected to a second multi-mode optical fiber. It further comprises an optical harness for switching and reassigning a transmission channel including single-mode optical inputs coupled to the single-mode optical output terminals of the first component, single-mode optical outputs coupled to the single-mode optical input terminals of the second optical component, and single-mode waveguides.

Abstract: A quenching chamber includes, for each zone of contact between a mobile contact and two fixed contacts, respectively, two pairs of guides that extend from the mobile contact and the contact zone in question, respectively, so as to guide, under the action of a magnetic field of constant direction, an electric arc. The pairs of guides follow one after the other in the direction of the magnetic field, and each pair of guides delineates between them a guiding zone. The guiding zones overlap at least partially in the direction of the magnetic field.

Abstract: The invention relates to a device (1) for supplying electrical power, comprising: —a power source, —a system to be supplied with power, —a first busbar (2) connected to the system to be supplied with power, —a second busbar (3) connected to the CN power source, —an elastic element (13), —a heat-sensitive element (6) configured to melt at a predefined temperature, and—a holding system (7,8,9) allowing the two busbars (2,3) and the heat-sensitive element (6) to be held in contact, —the two busbars (2,3) making p electrical contact, —the elastic element (13) being configured to move the two busbars (2,3) away from each other and to break the M electrical contact, when the heat-sensitive element (6) melts.

Abstract: Electrical cut-off device including a fuse used to open a power line in which a direct current circulates, a movable drawer connected to the fuse and capable, once the fuse is broken, of moving in a fixed chamber under the action of a compression spring mounted between the fixed chamber and the movable drawer, and an auxiliary contact whose fixed contact part is secured to the fixed chamber and movable contact part is secured to the movable drawer whose movement will cause the opening of the normally closed auxiliary contact.

Abstract: An electrical system includes an electrical power module with a heat sink provided with heat-dissipating projections. The system further includes a cold plate of a heat-transfer fluid box. The cold plate has cavities which are complementary to the projections so as to receive said projections. Liquid metal is inserted between the heat sink and the cold plate, at least between the projections and the cavities.

Abstract: An electrical converter includes an inverter configured to provide at least one input AC voltage from an input DC voltage (VE). The electrical converter further includes an AC-to-AC voltage converter configured to provide an output AC voltage from the at least one input AC voltage such that the output AC voltage has an amplitude that depends on a frequency of the at least one input AC voltage. A rectifier is configured to provide an output DC voltage from the output AC voltage.