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公开(公告)号：US11171523B2
公开(公告)日：2021-11-09
申请号：US16072005
申请日：2016-11-29
Applicant: Mitsubishi Electric Corporation
Inventor： Moriyuki Hazeyama , Junji Kitao , Yoshihiro Miyama , Shogo Okamoto , Shinji Nishimura , Ryuichi Kitora , Ryuji Kitamura , Hitoshi Isoda
Abstract: In a rotary electric machine, slots are formed between teeth of a stator core. A ratio of a number of poles to a number of slots is 2:3. When an electrical angle of a tooth tip width, which is a width dimension of a tip of each of the teeth in a circumferential direction of the stator, is represented by α, an electrical angle of a pole arc angle, which is an angle formed by two straight lines that connect a rotation center of a rotor to corners on a rotor surface side of one permanent magnet, is represented by β, and a number of pole pairs is represented by P, the tooth tip width is within a range of (electrical angle)±0.2°×P for a value that satisfies the following expression: β=−2.5α+319.7 (0
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公开(公告)号：US10852163B2
公开(公告)日：2020-12-01
申请号：US16342045
申请日：2016-10-31
Applicant: Mitsubishi Electric Corporation
Inventor： Hitoshi Isoda , Yoshihiro Miyama , Tatsuo Nishimura , Hideaki Arita , Shinji Nishimura , Koji Nishizawa
Abstract: A rotation angle detection device including: a rotor; a stator including “b” (b≥3) magnetic detection portions (MDPs) each including a bias magnetic field generation portion and a magnetic detection element (MDE); and a rotation angle processor calculating a rotation angle of the rotor based on a detection by the (MDEs). The rotor has convex and concave portions (CCPs), which change in “x” cycles for a mechanical angle 360 (“x”≥1) to make the MDEs possible to obtain a sine wave. There are arranged “b” MDPs along a circumferential direction of the stator for each cycle of the CCPs, which are arranged at intervals of a mechanical angle 360×(n×b+m)/(x×b), where “n” (n≥0) represents, by a number of cycles, a deviation amount of each of the MDPs from a reference position in the circumferential direction, and “m” (1≤m≤“b”) represents a position of a MDP in an arrangement order.
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公开(公告)号：US09343933B2
公开(公告)日：2016-05-17
申请号：US14258169
申请日：2014-04-22
Applicant: Mitsubishi Electric Corporation
Inventor： Hitoshi Isoda , Masaya Inoue , Shinji Nishimura , Moriyuki Hazeyama , Tomoya Tachibana
IPC: H02K1/27
CPC classification number: H02K1/2766 , H02K2201/06 , H02K2213/03
Abstract: A rotating electric machine includes a rotor including: a rotor core divided into blocks in an axial direction, the blocks being arranged to have a phase angle therebetween in a circumferential direction, the rotor core having magnet through holes arrayed in the circumferential direction and formed in an outer circumferential region; and permanent magnets inserted into the magnet through holes. The magnet through hole includes: a magnet insertion portion into which the permanent magnet is inserted; and a non-magnetic portion provided on an outer side of the magnet insertion portion in the circumferential direction. A bridge portion is formed between the outer circumferential surface and an outer circumferential inner wall of the non-magnetic portion. A bridge angle, which is an angle between both circumferential ends of the bridge portion with a rotation center of the rotor core set as a vertex, is larger than a skew angle.
Abstract translation: 旋转电机包括转子，该转子包括：沿轴向分为块体的转子铁芯，所述块体在圆周方向上具有相位角，所述转子铁芯具有沿圆周方向排列的磁体通孔，并形成在 外周区域; 永久磁铁插入到磁铁通孔内。 磁体通孔包括：永磁体插入其中的磁体插入部分; 以及设置在磁体插入部的周向的外侧的非磁性部。 在非磁性部的外周面与外周内壁之间形成有桥部。 作为设置为顶点的转子铁芯的旋转中心的桥接部的两个周向端部之间的角度的桥角大于倾斜角度。
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公开(公告)号：US10110083B2
公开(公告)日：2018-10-23
申请号：US14904730
申请日：2013-11-08
Applicant: Mitsubishi Electric Corporation
Inventor： Manabu Yoshinori , Atsushi Sakaue , Tatsuro Hino , Hironori Tsuiki , Shinichi Okada , Hiroki Shiota , Masaya Inoue , Shogo Okamoto , Shinji Nishimura , Akira Hashimoto , Shinkichi Sawa , Yutaka Ikura , Ryuichi Kitora
Abstract: A side surface at the outside of a plurality of teeth portions of one separated core is faced to a side surface of teeth portions of an adjacent separated core, so as to form a second slot which is straddled between the adjacent separated cores, and a first slot is formed by a plurality of teeth portions of one separated core, and a width size of the first slot is identical to a width size of the second slot, and coil conductor storage space is formed in the first slot via a first insulating component, and coil conductor storage space is formed in the second slot via a second insulating component, and a thickness size of the first insulating component is different from a thickness size of the second insulating component.
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公开(公告)号：US20150270746A1
公开(公告)日：2015-09-24
申请号：US14427848
申请日：2013-03-22
Applicant: Mitsubishi Electric Corporation
Inventor： Shinji Nishimura
CPC classification number: H02K1/146 , H02K1/148 , H02K3/18 , H02K3/28 , H02K15/066 , Y10T29/49012
Abstract: A motor of the present invention is configured in such a way that a side surface of a teeth portion and a side surface, which is faced to the side surface, of a neighboring teeth portion, in which an inner circumference side tip of the teeth portion is excepted, are positioned in parallel at a slot in which a coil of a stator, which is configured in a cylinder shape, is installed, and self-both side surfaces at the inner circumference side tip of the teeth portion are positioned in parallel. Thereby, a high electric power of the motor can be generated, and the coil can be installed to a tip of the teeth portion.
Abstract translation: 本发明的电动机被构造成使得齿部分的侧表面和面对侧表面的侧表面相邻的齿部分的齿部分的内周侧末端 被排列成平行地定位在其中安装有构造为圆柱形的定子的线圈的狭槽中，并且齿部的内周侧末端处的自身两侧表面平行定位。 由此，可以产生电动机的高电力，并且可以将线圈安装到齿部的尖端。
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Patent Agency Ranking
公开(公告)号：US11255703B2
公开(公告)日：2022-02-22
申请号：US16959306
申请日：2018-01-11
Applicant: Mitsubishi Electric Corporation
Inventor： Yoshimasa Nishijima , Masahiro Iezawa , Shinji Nishimura , Ryosuke Shigematsu
Abstract: A rotation angle detection device for accurately detecting a rotation angle is obtained even when electromagnetic noise due to an electrical component(s) and the like of an electric automotive vehicle is superimposed on detection signals of the rotation angle detection device. The device includes a multi-phase/two-phase transformation unit for converting a plurality of detection signals, each being outputted from rotation detectors in accordance with a rotation angle of a rotating body so as to output transformed signals as two-phase signals; an addition-subtraction calculation unit for generating addition-subtraction signals by mutually performing addition to the two-phase signals and subtraction therefrom; an amplitude correction unit for modifying amplitudes of the addition-subtraction signals in accordance with an amplitude correction value, and for outputting post-correction addition-subtraction signals; and an angle calculation unit for calculating an angle based on the post-correction addition-subtraction signals, and for outputting an angular signal.
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公开(公告)号：US10404115B2
公开(公告)日：2019-09-03
申请号：US15038851
申请日：2014-12-15
Applicant: MITSUBISHI ELECTRIC CORPORATION
Inventor： Sachiko Kawasaki , Kimiyasu Furusawa , Atsushi Sakaue , Akira Hashimoto , Hiroyuki Akita , Moriyuki Hazeyama , Masaya Inoue , Shinji Nishimura
Abstract: A contour line on the outer circumferential side of each magnet hole in the first layer is formed to be an arc passing through a total of three intersections, i.e., an intersection of a d axis and a reference magnetic flux line which is a magnetic flux line as a reference positioned inward by a predetermined number of magnetic flux lines from the outer circumferential edge of a rotor core, and intersections of: the reference magnetic flux line; and sides at the circumferential ends of the magnet hole which are positioned inward by a bridge dimension from the outer circumferential edge of the rotor core. Thus, a rotary electric machine that enables maximum utilization of reluctance torque and magnet torque and suppression of torque ripple can be obtained with simple processing and low cost.
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公开(公告)号：US10305342B2
公开(公告)日：2019-05-28
申请号：US14898201
申请日：2013-10-08
Applicant: Mitsubishi Electric Corporation
Inventor： Shinji Nishimura , Shinsuke Kayano
IPC: H02K5/02 , H02K3/12 , H02K7/00 , H02P25/22 , H02P27/06 , B60L11/08 , H02K1/27 , H02K3/28 , H02K5/16 , H02K11/00
Abstract: A motor, which can reduce a shaft current by a cheap configuration and has a high reliability, is provided. A motor which is provided between an internal combustion engine and a transmission and installed in a housing for connecting the internal combustion engine and the transmission, in which a number of magnetic poles of a rotor is “10×n” (n is a natural number), and a number of teeth of a stator is “12×n” (n is a natural number); and a rotary shaft of the rotor, bearings for supporting the rotary shaft, and the housing are composed of electric conductors; and an electric conductor circuit, which includes the rotary shaft, the bearings, and the housing and is interlinked to the stator, is formed.
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公开(公告)号：US09893598B2
公开(公告)日：2018-02-13
申请号：US14773951
申请日：2013-04-26
Applicant: Mitsubishi Electric Corporation
Inventor： Shinsuke Kayano , Masaya Inoue , Shinji Nishimura
CPC classification number: H02K11/0094 , H02K1/27 , H02K11/25 , H02P29/662
Abstract: A magnet temperature estimation device includes: a voltage detector (1) for detecting a voltage at a time when a winding is energized; a high-order component detector (2) for detecting a high-order component of the voltage; a reference database (3) for storing in advance, as a table, a correspondence relationship between the high-order component and two or more parameters, which include a magnet temperature and another one or more parameters, as parameters affecting the voltage from which the high-order component is detected; a parameter value detector (4) for detecting a value of the another one or more parameters; and a magnet temperature estimator (5) for estimating a magnet temperature corresponding to the high-order component detected by the high-order component detector based on the another one or more parameters detected by the parameter value detector and the table stored in the reference database.
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公开(公告)号：US09595851B2
公开(公告)日：2017-03-14
申请号：US14758883
申请日：2014-01-17
Applicant: MITSUBISHI ELECTRIC CORPORATION
Inventor： Moriyuki Hazeyama , Takuma Sasai , Shinsuke Kayano , Masaya Inoue , Shinji Nishimura , Akihiro Daikoku
IPC: H02K1/27
CPC classification number: H02K1/2766
Abstract: Permanent magnets that form individual magnetic poles are configured by arranging three magnet blocks to be spaced apart from each other circumferentially, the three magnet blocks are each formed such that cross-sectional shapes that are perpendicular to a central axis of a rotor core are radially outwardly convex, and circumferential widths are narrower in magnet blocks that are further away from a magnetic pole center, and the three magnet blocks that are arranged circumferentially are formed to have mirror symmetry relative to a plane that passes through the magnetic pole center and the central axis of the rotor core.
Abstract translation: 形成单个磁极的永久磁铁通过将三个磁体块相互间隔设置而构成，三个磁体块各自形成为使得垂直于转子芯的中心轴线的横截面形状为径向向外 在远离磁极中心的磁体块中，凸形和周向宽度较窄，并且沿周向布置的三个磁体块形成为相对于穿过磁极中心和中心轴线的平面具有镜像对称性 的转子芯。
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