Patents by Inventor Jean-Claude Mipo
Jean-Claude Mipo 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).
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Publication number: 20210288540Abstract: The invention relates primarily to a rotating electrical machine for a motor vehicle including: - a rotor, and - a stator (11) including a winding (17) having a plurality of phases, each phase comprising a plurality of groups of coils (G1-G4), characterized in that said stator (11) is configured such that currents in the groups of coils (G1-G4) are able to flow selectively: - in one and the same direction so as to maximize a number of poles of the rotating electrical machine, or - in opposite directions so as to minimize a number of poles of the rotating electrical machine.Type: ApplicationFiled: July 26, 2019Publication date: September 16, 2021Applicant: Valeo Equipements Electriques MoteurInventors: Jean Claude Mipo, Sophie Personnaz, Zi-Qiang Zhu, Srinivas Mallampalli Satsai
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Patent number: 9356498Abstract: A rotary electrical machine comprises a rotor including a plurality of poles and a plurality of windings (E0-E7) wound about the poles, a stator, and a compensation device configured to compensate the armature magnetic reaction of the stator. The compensation device comprises at least one permanent compensation magnet which is implanted in a pole(s) of the rotor. The magnet(s) is/are sized and placed in accord with the desired compensation effect desired.Type: GrantFiled: March 8, 2010Date of Patent: May 31, 2016Assignee: Valeo Equipements Electriques MoteurInventors: Jean-Claude Mipo, Li Li, Luc Kobylanski, Albert Foggia
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Patent number: 9197118Abstract: A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed within a circumferential portion of the magnetic body, thus defining circumferential polar sections. The coils are housed in second axial recesses (E2) distributed within an intermediate portion of the magnetic body and defining pole teeth (RT). The ratio of a width of a pole tooth to a height of a permanent magnet is around 0.65 to around 1.Type: GrantFiled: June 7, 2011Date of Patent: November 24, 2015Assignee: Valeo Equipements Electriques MoteurInventors: Jean-Claude Matt, Jean-Claude Mipo, Li Li, Albert Foggia
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Patent number: 9160218Abstract: A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed within a circumferential portion of the magnetic body, thus defining circumferential polar sections. The coils are housed in second axial recesses (E2) distributed within an intermediate portion of the magnetic body. The circumferential polar section includes a third recess (E3), and a portion of the magnetic body forming a bridge having a height of around 0.7 mm to around 2 mm is retained between an apex of the recess and an outer pole face.Type: GrantFiled: June 7, 2011Date of Patent: October 13, 2015Assignee: Valeo Equipements Electriques MoteurInventors: Jean-Claude Matt, Jean-Claude Mipo, Li Li, Albert Foggia
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Patent number: 9006950Abstract: A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed in a circumferential portion of the magnetic body, thus defining circumferential polar sections. The coils are housed in second axial recesses (E2) distributed in an intermediate portion of the magnetic body and defining polar teeth (RT). The circumferential polar section includes a third recess (E3) having a maximum width at the top thereof, and the ratio of the maximum width of the third recess to a pole width of the circumferential polar section has a value of around 0.13 mm to around 0.44 mm.Type: GrantFiled: July 11, 2011Date of Patent: April 14, 2015Assignee: Valeo Equipements Electriques MoteurInventors: Jean-Claude Matt, Jean-Claude Mipo, Li Li, Albert Foggia
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Publication number: 20130169095Abstract: A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed in a circumferential portion of the magnetic body, thus defining circumferential polar sections. The coils are housed in second axial recesses (E2) distributed in an intermediate portion of the magnetic body and defining polar teeth (RT). The circumferential polar section includes a third recess (E3) having a maximum width at the top thereof, and the ratio of the maximum width of the third recess to a pole width of the circumferential polar section has a value of around 0.13 mm to around 0.44 mm.Type: ApplicationFiled: July 11, 2011Publication date: July 4, 2013Inventors: Jean-Claude Matt, Jean-Claude Mipo, Li Li, Albert Foggia
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Publication number: 20130162094Abstract: A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed within a circumferential portion of the magnetic body, thus defining circumferential polar sections. The coils are housed in second axial recesses (E2) distributed within an intermediate portion of the magnetic body. The circumferential polar section includes a third recess (E3), and a portion of the magnetic body forming a bridge having a height of around 0.7 mm to around 2 mm is retained between an apex of the recess and an outer pole face.Type: ApplicationFiled: June 7, 2011Publication date: June 27, 2013Inventors: Jean-Claude Matt, Jean-Claude Mipo, Li Li, Albert Foggia
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Publication number: 20130162093Abstract: A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed within a circumferential portion of the magnetic body, thus defining circumferential polar sections. The coils are housed in second axial recesses (E2) distributed within an intermediate portion of the magnetic body and defining pole teeth (RT). The ratio of a width of a pole tooth to a height of a permanent magnet is around 0.65 to around 1.Type: ApplicationFiled: June 7, 2011Publication date: June 27, 2013Inventors: Jean-Claude Matt, Jean-Claude Mipo, Li Li, Albert Foggia
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Patent number: 8354771Abstract: A rotor (1) for a rotary electrical machine, which includes two pole wheels (2) having a series of axial claw poles (20) of a trapezoidal overall shape which extend axially from the extreme radial outer edge of the pole wheel (2a) toward the other pole wheel (2b), such that each pole claw (20a, 20b) of a pole wheel (2a, 2b) is situated in the space which exists between two consecutive claw poles (20a) of the other pole wheel (2b). The rotor (1) includes magnetic assemblies (3) in the interpole space (22). An assembly (3) is composed of at least one magnetic member (31) and at least one magnet (30), received in a groove (21) made in each of the facing edge faces of the two adjacent claw poles (20a, 20b). This has the advantage of increasing the cross-section for the flow of rotor flux towards the stator, and of enabling the same milling cutter as has already been used to make the grooves in the edge faces of the claw poles.Type: GrantFiled: April 22, 2008Date of Patent: January 15, 2013Assignee: Valeo Equipements Electriques MoteurInventors: Alexandre Pfleger, Olivier Gas, Jean-Claude Mipo, Lilya Bouarroudj
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Publication number: 20120248921Abstract: The machine of the invention includes an inductor (11), an armature (10) and means for compensating the armature magnetic reaction. According to the invention, the means for compensation the armature magnetic reaction includes at least one permanent magnet (AC) implanted in a pole of the inductor. According to one particular embodiment, the compensation means includes a magnet implanted in each of the inductor poles. According to another embodiment, the compensation means includes two magnets implanted in each of the inductor poles. The machine may comprise surface or buried compensation permanent magnets.Type: ApplicationFiled: March 8, 2010Publication date: October 4, 2012Inventors: Jean-Claude Mipo, Li Li, Luc Kobylanski, Albert Foggia
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Publication number: 20100289371Abstract: A rotor (1) for a rotary electrical machine, which includes two pole wheels (2) having a series of axial claw poles (20) of a trapezoidal overall shape which extend axially from the extreme radial outer edge of the pole wheel (2a) toward the other pole wheel (2b), such that each pole claw (20a, 20b) of a pole wheel (2a, 2b) is situated in the space which exists between two consecutive claw poles (20a) of the other pole wheel (2b). The rotor (1) includes magnetic assemblies (3) in the interpole space (22). An assembly (3) is composed of at least one magnetic member (31) and at least one magnet (30), received in a groove (21) made in each of the facing edge faces of the two adjacent claw poles (20a, 20b). This has the advantage of increasing the cross-section for the flow of rotor flux towards the stator, and of enabling the same milling cutter as has already been used to make the grooves in the edge faces of the claw poles.Type: ApplicationFiled: April 22, 2008Publication date: November 18, 2010Inventors: Alexandre Pfleger, Olivier Gas, Jean-Claude Mipo, Lilya Bouarroudj
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Publication number: 20090184601Abstract: The invention concerns a polyphase stator (5) for a with rotating electrical machine claw-pole rotor comprising five or seven phases (132), a stator body having internally a plurality of notches delimited by teeth, each phase including at least one winding, each winding including coils with multiple turns, each coil enclosing a single tooth (61). The invention also concerns an alternator or an alternator starter comprising such a stator.Type: ApplicationFiled: September 11, 2006Publication date: July 23, 2009Inventors: Jean-Marc Dubus, Arnaud De Vries, Denis Even, Jean-Claude Mipo
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Patent number: 7528516Abstract: In a rotary electrical machine, the stator is subject to eddy currents, causing losses. These losses are reduced by extending the path of the eddy currents whilst avoiding causing saturation. The invention therefore proposes to form recessed zones or slots (2) in the teeth (1) of the stator whose depth does not exceed one-half of the height of the tooth (1).Type: GrantFiled: May 26, 2006Date of Patent: May 5, 2009Assignee: Valeo Equipments Electriques MoteurInventors: Jean-Claude Mipo, Lilya Bouarroudj, Albert Foggia
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Publication number: 20060290225Abstract: In a rotary electrical machine, the stator is subject to eddy currents, causing losses. These losses are reduced by extending the path of the eddy currents whilst avoiding causing saturation. The invention therefore proposes to form recessed zones or slots (2) in the teeth (1) of the stator whose depth does not exceed one-half of the height of the tooth (1).Type: ApplicationFiled: May 26, 2006Publication date: December 28, 2006Inventors: Jean-Claude Mipo, Lilya Bouarroudj, Albert Foggia
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Patent number: 7145273Abstract: The invention relates to an alternator for a motor vehicle including a stator (13) equipped with a body (14) carrying several phases each comprising, on the one hand, an inlet (E1 to E?3) and an outlet (S1 to S?3) installed outside the body (14) of the stator (13), and, on the other hand, electrically conducting elements, which are arranged in a network on either side of the body (14) of the stator (13) so as to form a first (12) and a second (12?) bun and which pass through the said body, in which the electrically conducting elements are linked together to form the said networks and connect the inlet of the phase to the outlet of the phase by forming at least one winding. According to the invention, one of the buns (12, 12?), on one side of the body (14) of the stator (13), carries three inlets (E1 to E3–E?1 to E?3), an electrically conducting linking part (50, 51) linking the said inlets electrically together.Type: GrantFiled: December 21, 2001Date of Patent: December 5, 2006Assignee: Valeo Equipments Electriques MonteurInventors: Denis Even, Pierre Faverolle, Jean-Claude Mipo, Jean-Luc Tarrago
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Patent number: 6930424Abstract: The invention relates to alternators for a motor vehicle, of which a stator comprises a cylindrical body, several phases each formed by a plurality of electrically conducting elements, the cylindrical body comprising radial slots for accommodating at least four phase-conductor elements forming at least four layers of conductor elements, each conductor element including two branches placed in slots each in a predetermined layer and a head forming a U-shape seen in the peripheral direction, the half of the conductor elements which are engaged by their first branches in a slot being engaged by their second respective branches in the same other slot. According to the invention, at least first and second conductor elements of such half are such that the radii of curvature of the U-shapes of the two conductor elements are substantially identical.Type: GrantFiled: December 21, 2001Date of Patent: August 16, 2005Assignee: Valeo Equipements Electriques MoteurInventors: Denis Even, Pierre Faverolle, Jean-Claude Mipo, Jean-Luc Tarrago
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Publication number: 20030117033Abstract: The invention relates to an alternator for a motor vehicle including a stator (13) equipped with a body (14) carrying several phases each comprising, on the one hand, an inlet (E1 to E′3) and an outlet (S1 to S′3) installed outside the body (14) of the stator (13), and, on the other hand, electrically conducting elements, which are arranged in a network on either side of the body (14) of the stator (13) so as to form a first (12) and a second (12′) bun and which pass through the said body, in which the electrically conducting elements are linked together to form the said networks and connect the inlet of the phase to the outlet of the phase by forming at least one winding. According to the invention, one of the buns (12, 12′), on one side of the body (14) of the stator (13), carries three inlets (E1 to E3-E′1 to E′3), an electrically conducting linking part (50, 51) linking the said inlets electrically together.Type: ApplicationFiled: August 21, 2002Publication date: June 26, 2003Inventors: Denis Even, Pierre Faverolle, Jean-Claude Mipo, Jean-Luc Tarrago
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Publication number: 20030011268Abstract: The invention relates to alternators for a motor vehicle, of which a stator comprises a cylindrical body, several phases each formed by a plurality of electrically conducting elements, the cylindrical body comprising radial slots for accommodating at least four phase-conductor elements forming at least four layers of conductor elements, each conductor element including two branches placed in slots each in a predetermined layer and a head forming a U-shape seen in the peripheral direction, the half of the conductor elements which are engaged by their first branches in a slot being engaged by their second respective branches in the same other slot.Type: ApplicationFiled: August 21, 2002Publication date: January 16, 2003Inventors: Denis Even, Pierre Faverolle, Jean-Claude Mipo, Jean-Luc Tarrago