Patents by Inventor Xavier Jannot

Xavier Jannot has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11949284
    Abstract: A stator including a ring having teeth and slots between said teeth that open radially outwards and material bridges, each linking two adjacent teeth to the respective base on the side of the air-gap, a yoke attached to the ring, and windings placed in the slots of the ring, at least some of the material bridges having at least on deformable zone that can be deformed during assembly of the yoke on the ring.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: April 2, 2024
    Assignee: MOTEURS LEROY-SOMER
    Inventors: Xavier Jannot, Francois Turcat, Cedric Plasse, Olivier Gas
  • Publication number: 20240030757
    Abstract: The invention relates to a coil intended to be inserted in into a first and a second slot of a stator, the coil being wound in a plurality of successive turns, each turn comprising:—a first half-turn comprising a first slot portion configured to be inserted in into the first slot of the stator,—a second half-turn comprising a second slot portion configured to be inserted in into the second slot of the stator, the second half-turns each being connected to the first half-turn of the same turn and to the first half-turn of the next turn by junction portions on each side of the first and second slot portions, the junction portions of the coil stacking along at least two juxtaposed heads extending in mutually parallel junction planes.
    Type: Application
    Filed: December 16, 2021
    Publication date: January 25, 2024
    Inventors: Olivier GAS, Jacques SAINT MICHEL, Xavier JANNOT, Nicolas LANGLARD, Sebastien DESURMONT
  • Publication number: 20230268782
    Abstract: A stator (2) for a rotary electric machine (1), comprising:—a radially interior ring (25) comprising teeth (23) and slots (21) opening radially towards the outside and extending between the teeth, bridges of material (27) connecting two adjacent teeth to their base and defining the bottoms of the slots between these teeth,—coils (22) arranged in the slots, having electrical conductors arranged in an ordered fashion in the slots (21), and—a radially outer yoke (29) attached in contact with the ring, the yoke being formed of assembled sectors (30).
    Type: Application
    Filed: June 16, 2021
    Publication date: August 24, 2023
    Inventors: Olivier GAS, Xavier JANNOT, Jacques SAINT MICHEL, Francois TURCAT, Nicolas LANGLARD, Sébastien DESURMONT
  • Patent number: 11569717
    Abstract: An axial flux rotary electric machine including at least one stator and at least one rotor that are arranged along an axis of rotation of the machine, the rotor including a rotor mass and housings created in the rotor mass, the housings defining magnetic poles of the rotor, each of the housings being able to contain or not contain at least one permanent magnet.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: January 31, 2023
    Assignee: MOTEURS LEROY-SOMER
    Inventors: Dany Prieto, Paul Akiki, Xavier Jannot, Benjamin Daguse
  • Publication number: 20220149677
    Abstract: A stator for a rotating electrical machine comprises a stator mass comprising teeth and notches between the teeth, each of the notches being, on the air gap side, completely closed, electrical conductors being housed in the notches, the electrical conductors forming a fractional winding, for which the ratio q defined by q=Ne/(2 pm) is written as an irreducible fraction z/n, z and n being two non-zero integers, n being different from 1, wherein Ne is the number of stator notches, m the number of winding phases and p the number of pairs of stator poles.
    Type: Application
    Filed: February 27, 2020
    Publication date: May 12, 2022
    Inventors: Fatma ABID, Moustafa AL EIT, Sara BAZHAR, Lamya BELHAJ, Xavier JANNOT, Jacques SAINT-MICHEL
  • Publication number: 20210218293
    Abstract: A stator including a ring having teeth and slots between said teeth that open radially outwards and material bridges, each linking two adjacent teeth to the respective base on the side of the air-gap, a yoke attached to the ring, and windings placed in the slots of the ring, at least some of the material bridges having at least on deformable zone that can be deformed during assembly of the yoke on the ring.
    Type: Application
    Filed: June 4, 2019
    Publication date: July 15, 2021
    Inventors: Xavier Jannot, Francois Turcat, Cedric Plasse, Olivier Gas
  • Publication number: 20210203214
    Abstract: A method for manufacturing a stator of an electrical machine. The method including: a toothed ring having teeth joined together by bridges of material and defining between them slots open radially toward the outside, windings produced outside of the slots, and a yoke configured to be attached to the toothed ring. The method also including attaching at least one piece of sheet-form insulation to at least a portion of each of the windings, inserting said winding portions with the insulation into the slots via a radial movement directed toward the inside of the slots, and assembling the yoke onto the radially exterior surface of the ring to close the slots radially.
    Type: Application
    Filed: June 4, 2019
    Publication date: July 1, 2021
    Inventors: Jacques Saint-Michel, Xavier Jannot, Olivier Gas, Nicolas Langlard, Sebastien Desurmont
  • Publication number: 20210203197
    Abstract: A stator for a rotary electrical machine including a radially interior ring having teeth and slots which are open radially toward the outside, extending between the teeth, bridges of material connecting two adjacent teeth at their base, and defining the bottom of the slot between these teeth, and a radially exterior yoke, attached in contact with the ring, the ring and the yoke respectively exhibiting first and second reliefs collaborating with one another and/or with one or more inserts, and windings placed in a distributed fashion in the slots.
    Type: Application
    Filed: May 17, 2019
    Publication date: July 1, 2021
    Inventors: Jacques Saint-Michel, Xavier Jannot, Francois Turcat, Cedric Plasse, Olivier Gas
  • Publication number: 20190386549
    Abstract: An axial flux rotary electric machine including at least one stator and at least one rotor that are arranged along an axis of rotation of the machine, the rotor including a rotor mass and housings created in the rotor mass, the housings defining magnetic poles of the rotor, each of the housings being able to contain or not contain at least one permanent magnet.
    Type: Application
    Filed: February 14, 2018
    Publication date: December 19, 2019
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Dany PRIETO, Paul AKIKI, Xavier JANNOT, Benjamin DAGUSE
  • Publication number: 20160329845
    Abstract: A method for determining the polarity of a pole of a rotor of an electrical rotating machine, having an estimated position in relation to a stator, said method including the following steps: a) applying an excitation voltage to the stator such as to generate two different magnetic fluxes successively inside a saturable magnetic zone of the pole, one flux in conjunction with and the other in opposition to the magnetic flux of the magnets, such as to saturate the saturable magnetic zone for at least one of the magnetic fluxes; and b) determining the polarity of the pole according to the differences in the temporal evolution of the current generated in the stator by the two fluxes.
    Type: Application
    Filed: December 19, 2014
    Publication date: November 10, 2016
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Xavier JANNOT, Jacques SAINT-MICHEL, Mathias TIENTCHEU-YAMDEU
  • Publication number: 20150171684
    Abstract: A rotor of a rotating electric machine with flux concentration, including: a rotor body including recesses, and permanent magnets arranged in the recesses of the rotor body, said permanent magnets being arranged in the shape of a V oriented towards the air gap, each V defining an elementary polar portion, at least two consecutive elementary polar portions having an identical polarity.
    Type: Application
    Filed: February 19, 2013
    Publication date: June 18, 2015
    Inventors: Michael Leo McClelland, Xavier Jannot, Michel Labonne