Patents Assigned to CORELESS MOTOR CO., LTD.
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Publication number: 20220263385Abstract: The coreless motor includes a rotation center shaft that extends in the axial direction at the center of a sealed housing, a cylindrical coil that is disposed with respect to the rotation center shaft in the housing, an end surface on one side of the cylindrical coil being supported by a stator and extending in the direction in which the rotation center shaft extends, a rotor that is disposed concentrically with respect to the rotation center shaft in the housing, and that rotates in the circumferential direction of the rotation center shaft, and a liquid refrigerant that is accommodated in the housing, that flows inside the housing due to the rotation of the rotor, and that contacts the cylindrical coil.Type: ApplicationFiled: December 23, 2019Publication date: August 18, 2022Applicant: CORELESS MOTOR CO., LTD.Inventors: Manabu SHIRAKI, Kuniyuki TANAKA, Shotaro KAWANO
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Patent number: 11316396Abstract: One U-phase coil portion and the next U-phase coil portion in a circumferential direction, one V-phase coil portion and the next V-phase coil portion in the circumferential direction, and one W-phase coil portion and the next W-phase coil portion in the circumferential direction are electrically connected by conductive junctions, respectively.Type: GrantFiled: December 13, 2019Date of Patent: April 26, 2022Assignee: CORELESS MOTOR CO., LTD.Inventor: Manabu Shiraki
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Publication number: 20200395817Abstract: A coreless motor includes a shaft that extends in the axial direction at the center of the coreless motor and passes through said coreless motor; a coil is disposed with respect to the shaft, and has an end surface on one side that is supported by a stator and extends in the direction in which the shaft extends; a rotor that is disposed with respect to the fixed shaft and includes a cylindrical inner yoke and an outer yoke positioned so that the coil is sandwiched between the yokes, the yokes being provided with a magnet positioned on the side of the yoke, a magnet circuit being formed between the yokes, and the rotor being supported by the shaft at the radial center; a housing that includes a cylindrical part disposed concentrically with respect to the fixed shaft on the outside of the outer yoke in the radial direction.Type: ApplicationFiled: December 21, 2018Publication date: December 17, 2020Applicant: CORELESS MOTOR CO., LTD.Inventor: Manabu SHIRAKI
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Patent number: 10862381Abstract: A rotary electrical machine has a first annular body and a second annular body that face opposite each other with a coil interposed therebetween, either the first annular body or the second annular body being provided with a permanent magnet, the first annular body and/or the second annular body rotating about the axis of a rotating shaft, and the driving force of a motor being extracted through the rotating first annular body or second annular body or through the axis of the rotating shaft rotating with the rotating first annular body or second annular body.Type: GrantFiled: December 19, 2014Date of Patent: December 8, 2020Assignee: CORELESS MOTOR CO., LTD.Inventors: Toru Ikeuchi, Manabu Shiraki
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Publication number: 20200195078Abstract: One U-phase coil portion and the next U-phase coil portion in a circumferential direction, one V-phase coil portion and the next V-phase coil portion in the circumferential direction, and one W-phase coil portion and the next W-phase coil portion in the circumferential direction are electrically connected by conductive junctions, respectively.Type: ApplicationFiled: December 13, 2019Publication date: June 18, 2020Applicant: CORELESS MOTOR CO., LTD.Inventor: Manabu SHIRAKI
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Patent number: 10651702Abstract: A high performance rotating electrical machine which aims at downsizing, and challenges inevitable technical problems such as deterioration of efficiency ? caused by copper loss and temperature rise inside the rotating electrical machine due to heat generation induced by eddy current generated in magnetic body.Type: GrantFiled: March 4, 2015Date of Patent: May 12, 2020Assignee: CORELESS MOTOR CO., LTD.Inventors: Manabu Shiraki, Tsutomu Shiraki
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Patent number: 10637319Abstract: Present invention relates to a high performance rotating electrical machine which aims at downsizing, and challenges inevitable technical problems such as deterioration of efficiency ? caused by copper loss and temperature rise inside the rotating electrical machine due to heat generation induced by eddy current generated in magnetic body.Type: GrantFiled: July 10, 2018Date of Patent: April 28, 2020Assignee: CORELESS MOTOR CO., LTD.Inventors: Manabu Shiraki, Tsutomu Shiraki