Patents by Inventor Zi-Qiang Zhu
Zi-Qiang Zhu 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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Patent number: 12155283Abstract: 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: GrantFiled: July 26, 2019Date of Patent: November 26, 2024Assignee: Valeo Equipements Electriques MoteurInventors: Jean Claude Mipo, Sophie Personnaz, Zi-Qiang Zhu, Srinivas Mallampalli Satsai
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Patent number: 12149137Abstract: A stator segment for the stator or the rotor of an electrical machine is provided including: two end teeth at two respective circumferential ends, a plurality of N intermediate teeth, N being an integer greater than 1, a plurality of N+1 slots circumferentially distributed between the two end teeth, each pair of circumferentially adjacent intermediate teeth having a slot interposed therebetween, a slot being provided between each end tooth and a respective circumferentially adjacent intermediate tooth, at least one 2-pitch coil, the 2-pitch coils being in the number of N?1 and extending between an i-th slot and a (i+2)-th slot, the slots being progressively counted from one to the other of the two circumferential ends, i being an integer between 1 and N?1.Type: GrantFiled: October 9, 2020Date of Patent: November 19, 2024Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/SInventors: Ziad Azar, Alexander Duke, Liren Huang, Zi-Qiang Zhu
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Patent number: 12143058Abstract: An a arrangement for controlling a DC-link-voltage of a DC-link connected between a generator side converter portion and a utility grid side converter portion of a wind turbine includes: a generalized predictive control module adapted: to receive as control module input values a current value of the DC-link-voltage and a reference value of the DC-link-voltage and to derive a reference value of a DC current based on the control module input values, the reference value of a DC current defining the DC current to be injected into the DC-link, wherein the arrangement is adapted to control the generator side converter portion and/or the utility grid side converter portion based on the reference value of the DC current.Type: GrantFiled: May 7, 2021Date of Patent: November 12, 2024Assignee: Siemens Gamesa Renewable Energy A/SInventors: Nuno Miguel Amaral Freire, Tao Wang, Zi-Qiang Zhu
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Publication number: 20230246577Abstract: An arrangement for controlling a DC-link-voltage of a DC-link-connected between a generator side converter portion and a utility grid side converter portion of a wind turbine includes: a generalized predictive control module adapted: to receive as control module input values a current value of the DC-link-voltage and a reference value of the DC-link-voltage and to derive a reference value of a DC current based on the control module input value, the reference value of a DC current defining the DC current to be injected into the DC-link, wherein the arrangement is adapted to control the generator side converter portion and/or the utility grid side converter portion based on the reference value of the DC current.Type: ApplicationFiled: May 7, 2021Publication date: August 3, 2023Inventors: Nuno Miguel Amaral Freire, Tao Wang, Zi-Qiang Zhu
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Publication number: 20230033842Abstract: An electrical connector includes: an insulative housing defining a terminal hole, the terminal hole defining two opposite narrow sides and two opposite wide sides; and a first terminal having a fixing portion fixed in the terminal hole, the fixing portion having two opposite narrow surfaces and two opposite wide surfaces, the narrow surfaces defining barbs interference fit with the narrow sides of the terminal hole, wherein the fixing portion further defines a tab protruding from one wide surface thereof, the terminal hole further defines a front groove with a blocking face and a rear groove with a guiding face, and the tab passes across the guiding face to press against the blocking face for preventing the fixing portion from moving rearward.Type: ApplicationFiled: July 21, 2022Publication date: February 2, 2023Inventors: YAN-YAN HAN, XIAO-BO DU, GUO-HUA ZHANG, ZI-QIANG ZHU
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Patent number: 11533008Abstract: Provided is a method for determining the rotational position of a rotor in a permanent magnet synchronous machine, wherein the stator includes windings for a first, second and third phase, including the steps: applying a first voltage pulse to the first phase, determining respective first measures for the current induced by the first voltage pulse in the second and third phase, selecting a first selected phase depending on the first measures for the current, wherein the first selected phase is either the second or the third phase, applying a second voltage pulse to the first selected phase, determining respective second measures for the current induced by the second voltage pulse in the phases of the stator that are not the first selected phase, and determining the rotational position of the rotor depending on the second measures of the current.Type: GrantFiled: December 9, 2019Date of Patent: December 20, 2022Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/SInventors: Ximeng Wu, Zhan-Yuan Wu, Zi-Qiang Zhu
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Publication number: 20220393536Abstract: A stator segment for the stator or the rotor of an electrical machine is provided including: two end teeth at two respective circumferential ends, a plurality of N intermediate teeth, N being an integer greater than 1, a plurality of N+1 slots circumferentially distributed between the two end teeth, each pair of circumferentially adjacent intermediate teeth having a slot interposed therebetween, a slot being provided between each end tooth and a respective circumferentially adjacent intermediate tooth, at least one 2-pitch coil, the 2-pitch coils being in the number of N-1 and extending between an i-th slot and a (i+2)-th slot, the slots being progressively counted from one to the other of the two circumferential ends, i being an integer between 1 and N?1.Type: ApplicationFiled: October 9, 2020Publication date: December 8, 2022Inventors: Ziad Azar, Alexander Duke, Liren Huang, Zi-Qiang Zhu
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Patent number: 11381024Abstract: An electrical connector includes an insulative housing and a plurality of contacts retained thereto. Each contact includes a retaining section, a contacting section in front of the retaining section, and a mounting section behind the retaining section. A plurality of independent glue reservoirs are formed on a rear side of the housing via crossing partitions. A tiny passage is formed in an exterior face of the partition to communicate the neighboring glue reservoirs so as to assure the even/same height of the hardened glue blocks in respective glue reservoirs.Type: GrantFiled: February 26, 2021Date of Patent: July 5, 2022Assignees: FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO., LTD., FOXCONN INTERCONNECT TECHNOLOGY LIMITEDInventors: De-Ming Xu, Xiao-Bo Du, Guo-Hua Zhang, Zi-Qiang Zhu
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Patent number: 11271334Abstract: An electrical contact for extending through a hole in the printed circuit board in an insertion direction, includes a retention plate and a leg extending therefrom. The leg includes an insertion section and a deformation section. The deformation section includes a pair of opposite wide side faces in a first direction perpendicular to the insertion direction, and a pair of opposite narrow side faces in a second direction perpendicular to both the insertion direction and the first direction, and a cavity recessed from one wide side face in the first direction. The cavity forms a first end located closer to the insertion end of the leg in the insertion direction and equipped with a cone shape thereof, and a second end located opposite to the first end and closer to a rectangular retention section and equipped with an arc shape thereof. The cavity forms a trapezoidal cross-section.Type: GrantFiled: June 22, 2020Date of Patent: March 8, 2022Assignees: FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO., LTD., FOXCONN INTERCONNECT TECHNOLOGY LIMITEDInventors: De-Ming Xu, Xiao-Bo Du, Guo-Hua Zhang, Zi-Qiang Zhu
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Patent number: 11196314Abstract: Provided is an arrangement for an electrical machine having fractional slot topology, including: plural stator segments, each stator segment having plural teeth alternating with plural slots in a circumferential direction, each stator segment having at both circumferential ends a tooth portion; for each phase of plural phases a conductor wound in coils around teeth of the plural teeth, wherein the number of coils of any phase in any stator segment is the same as the number of coils of any other phase in this stator segment.Type: GrantFiled: January 23, 2018Date of Patent: December 7, 2021Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/SInventors: Arwyn Thomas, Yan-Xin Li, Zi-Qiang Zhu
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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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Publication number: 20210265760Abstract: An electrical connector includes an insulative housing and a plurality of contacts retained thereto. Each contact includes a retaining section, a contacting section in front of the retaining section, and a mounting section behind the retaining section. A plurality of independent glue reservoirs are formed on a rear side of the housing via crossing partitions. A tiny passage is formed in an exterior face of the partition to communicate the neighboring glue reservoirs so as to assure the even/same height of the hardened glue blocks in respective glue reservoirs.Type: ApplicationFiled: February 26, 2021Publication date: August 26, 2021Inventors: DE-MING XU, XIAO-BO DU, GUO-HUA ZHANG, ZI-QIANG ZHU
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Publication number: 20200403331Abstract: An electrical contact for extending through a hole in the printed circuit board in an insertion direction, includes a retention plate and a leg extending therefrom. The leg includes an insertion section and a deformation section. The deformation section includes a pair of opposite wide side faces in a first direction perpendicular to the insertion direction, and a pair of opposite narrow side faces in a second direction perpendicular to both the insertion direction and the first direction, and a cavity recessed from one wide side face in the first direction. The cavity forms a first end located closer to the insertion end of the leg in the insertion direction and equipped with a cone shape thereof, and a second end located opposite to the first end and closer to a rectangular retention section and equipped with an arc shape thereof. The cavity forms a trapezoidal cross-section.Type: ApplicationFiled: June 22, 2020Publication date: December 24, 2020Inventors: DE-MING XU, XIAO-BO DU, GUO-HUA ZHANG, ZI-QIANG ZHU
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Publication number: 20200235624Abstract: Provided is an arrangement for an electrical machine having fractional slot topology, including: plural stator segments, each stator segment having plural teeth alternating with plural slots in a circumferential direction, each stator segment having at both circumferential ends a tooth portion; for each phase of plural phases a conductor wound in coils around teeth of the plural teeth, wherein the number of coils of any phase in any stator segment is the same as the number of coils of any other phase in this stator segment.Type: ApplicationFiled: January 23, 2018Publication date: July 23, 2020Inventors: Arwyn Thomas, Yan-Xin Li, Zi-Qiang Zhu
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Publication number: 20200195178Abstract: Provided is a method for determining the rotational position of a rotor in a permanent magnet synchronous machine, wherein the stator includes windings for a first, second and third phase, including the steps: applying a first voltage pulse to the first phase, determining respective first measures for the current induced by the first voltage pulse in the second and third phase, selecting a first selected phase depending on the first measures for the current, wherein the first selected phase is either the second or the third phase, applying a second voltage pulse to the first selected phase, determining respective second measures for the current induced by the second voltage pulse in the phases of the stator that are not the first selected phase, and determining the rotational position of the rotor depending on the second measures of the current.Type: ApplicationFiled: December 9, 2019Publication date: June 18, 2020Inventors: XIMENG WU, ZHAN-YUAN WU, ZI-QIANG ZHU
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Patent number: 10686340Abstract: An interior permanent magnet motor comprising a rotor having a set of permanent magnets placed within the interior of the rotor and a stator which surrounds the rotor and has a set of stator teeth defining slots between adjacent teeth. The stator also includes a plurality of stator windings that extend around the teeth and within the slots, the rotor and stator defining an airgap there between, in which an outer peripheral surface of the rotor that faces the stator across the airgap is provided with a respective eccentric bulge in the region of each rotor magnet.Type: GrantFiled: December 6, 2018Date of Patent: June 16, 2020Assignee: TRW LimitedInventors: Zi-Qiang Zhu, Jie Ma
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Patent number: 10658773Abstract: An electrical contact of an electrical connector includes a mounting leg for being retained within a through hole of the printed circuit board wherein the mounting leg is tubular and is radially deformable to abut against an interior surface of the through hole. The mounting leg is radially thinned in thickness to confront the interior surface of the hole. The mounting leg is formed by rolling a metal plate with a C-shaped cross-section thereof. There are two thinned areas of the mounting leg, symmetrically located by two sides of the slit of the C-shaped cross-sectional configuration.Type: GrantFiled: January 4, 2019Date of Patent: May 19, 2020Assignees: FOXCONN (KUNSHAN) COMPUTER CONNECTOR Co., FOXCONN INTERCONNECT TECHNOLOGY LIMITEDInventors: Yun Zhang, Xue-Yuan Xiao, Zi-Qiang Zhu
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Patent number: 10547129Abstract: An electrical contact includes a compliant tail defining a pair of opposite first main face and second main face, and a pair of opposite first side face and second side face linked between the first main face and the second main face. The opposite first side face and second side face are bulged for engagement with an interior surface of the corresponding through hole. A pair of first through holes and a pair of second through holes extend through both the first main face and the second main face. The first through holes are configured with an elongated configuration while the second though holes are located around two opposite upper and lower ends of the first through holes.Type: GrantFiled: March 8, 2019Date of Patent: January 28, 2020Assignees: FOXCONN (KUNSHAN) COMPUTER CONNECTOR C, FOXCONN INTERCONNECT TECHNOLOGY LIMITEDInventors: Yun Zhang, Xue-Yuan Xiao, Zi-Qiang Zhu
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Publication number: 20190280406Abstract: An electrical contact includes a compliant tail defining a pair of opposite first main face and second main face, and a pair of opposite first side face and second side face linked between the first main face and the second main face. The opposite first side face and second side face are bulged for engagement with an interior surface of the corresponding through hole. A pair of first through holes and a pair of second through holes extend through both the first main face and the second main face.Type: ApplicationFiled: March 8, 2019Publication date: September 12, 2019Inventors: YUN ZHANG, XUE-YUAN XIAO, ZI-QIANG ZHU
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Publication number: 20190207333Abstract: An electrical contact of an electrical connector includes a mounting leg for being retained within a through hole of the printed circuit board wherein the mounting leg is tubular and is radially deformable to abut against an interior surface of the through hole. The mounting leg is radially thinned in thickness to confront the interior surface of the hole. The mounting leg is formed by rolling a metal plate with a C-shaped cross-section thereof. There are two thinned areas of the mounting leg, symmetrically located by two sides of the slit of the C-shaped cross-sectional configuration.Type: ApplicationFiled: January 4, 2019Publication date: July 4, 2019Inventors: YUN ZHANG, XUE-YUAN XIAO, ZI-QIANG ZHU