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公开(公告)号：US12034334B2
公开(公告)日：2024-07-09
申请号：US17442747
申请日：2019-05-24
发明人： Hiroko Ikeda , Tatsuya Mori , Kenta Motoyoshi , Kodai Okazaki , Kenji Ikeda , Yosuke Sugino , Seiji Sawada , Kenta Kubo , Toshihiro Matsunaga
摘要： A resolver device with redundancy, wherein winding groups of different systems are arranged at different positions in a circumferential direction of a stator core. The winding groups of each system include: an excitation winding group consisting of a plurality of excitation windings, each of which is connected to a corresponding one of plural excitation circuits; and a first output winding group; and a second output winding group. Each of the stator teeth has a corresponding one of the excitation windings wound therearound. When two of the excitation windings belonging to different systems, arranged side by side in the circumferential direction of the stator core, are defined as a first end excitation winding and a second end excitation winding, respectively, the first end excitation winding and the second end excitation winding are supplied with excitation signals which generate magnetic fluxes in the same (not opposite) radial directions of the stator core.
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公开(公告)号：US11828591B2
公开(公告)日：2023-11-28
申请号：US17290283
申请日：2019-01-25
发明人： Tatsuya Mori , Toshihiro Matsunaga , Hiroko Ikeda , Seiji Sawada , Kenta Kubo , Kenji Ikeda
摘要： Even using the redundant system resolver in which the magnetic interference between systems occurs, to provide an angle detection apparatus which can reduces the influence of the magnetic interference and can calculate the rotational angle with good accuracy, without performing synchronous control between systems in real time. An angle detection apparatus is provided with a resolver which has the first system windings and the second system windings in which magnetic interference occurs between systems; a first system removal processing unit that performs a second cycle component removal processing which removes component of the second cycle of the second system, to detection values of the first system winding output signals; and a first system angle calculation unit that calculates a first angle of rotor, based on the detection values of the first system winding output signals after the second cycle component removal processing.
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公开(公告)号：US12068702B2
公开(公告)日：2024-08-20
申请号：US17920607
申请日：2020-05-19
发明人： Masahiko Orii , Tatsuya Mori , Hiroko Ikeda , Toshihiro Matsunaga , Kenji Ikeda , Kenta Kubo
摘要： In an electric motor control device which controls rotation of an AC electric motor having two sets of three-phase windings and provided with a resolver having two systems by calculating voltage command values on dq axes, dq conversion of currents of first three-phase windings is performed using a first angle calculated from output of the first system of the resolver, and dq conversion of currents of second three-phase windings is performed using a second angle calculated from output of the second system of the resolver. With both d-axis current command values set at the same value, respective voltage command values on dq axes are calculated and respectively converted into voltage command values for voltage application to the first three-phase windings, using the first angle, and converted into voltage command values for voltage application to the second three-phase windings, using the second angle.
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公开(公告)号：US11750134B2
公开(公告)日：2023-09-05
申请号：US17629919
申请日：2019-09-26
发明人： Tatsuya Mori , Hiroko Ikeda , Toshihiro Matsunaga , Kenji Ikeda , Kenta Kubo
CPC分类号： H02P23/14 , B62D5/0409 , H02P25/22 , H02P27/06
摘要： To provide an AC rotary machine apparatus which can determine the operation stop of the control circuit of the other system with good accuracy. An AC rotary machine apparatus, including: a resolver is provided with a first system excitation winding, first system two output windings, a second system excitation winding, and second system two output windings, in which a magnetic interference occurs between a first system and a second system; a first system control circuit that applies AC voltage with a first period to the first system excitation winding; and a second system control circuit that applies AC voltage with a second period to the second system excitation winding, wherein the first system control circuit determines whether the operation of the second system control circuit stops, based on the components of the second period extracted from the first system output signals.
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公开(公告)号：US10090126B2
公开(公告)日：2018-10-02
申请号：US15100684
申请日：2014-09-11
IPC分类号： H01H50/30 , H01H33/42 , H01H33/666 , H01H33/38 , H01H50/22 , H01H50/64 , H01H1/50 , H01H3/60
摘要： A switchgear includes a stationary contact, a movable contact able to be shifted between a closed position and an opened position, an electromagnetic actuator able to generate power for shifting the movable contact, the electromagnetic actuator including a stator and a movable element, and a power transmission unit able to shift the movable contact, and to press the movable contact against the stationary contact. The power transmission unit includes a drive unit-side spring bearing portion able to be shifted together with the movable element, a contact-side spring bearing portion to be opposed to the drive unit-side spring bearing portion, and able to be shifted together with the movable contact, and a spring member provided between the drive unit-side spring bearing portion and the contact-side spring bearing portion.
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公开(公告)号：US20180025870A1
公开(公告)日：2018-01-25
申请号：US15719948
申请日：2017-09-29
发明人： Hideki MIYATAKE , Masahiro Arioka , Tadahiro Yoshida , Toshihiro Matsunaga , Toru Kimura , Naoki Tanaka
IPC分类号： H01H33/662
CPC分类号： H01H33/66207 , H01H33/662 , H02B13/0354
摘要： A vacuum circuit breaker includes a tank containing an electrical device. An opening corresponds to a terminal of the electrical device. A porcelain tube protruding from the tank is fixed to an opening base, and has a terminal conductor. A first connection conductor in the porcelain tube is connected to the terminal conductor. A second connection conductor is arranged in the porcelain tube. A third connection conductor is arranged between the first and the second connection conductor, has a closed end concave section fitted onto the first connection conductor and is connected to the second connection conductor by a fastener. A contact is disposed between said first connection conductor and the third connection conductor. The third and second connection conductors are made of a solid conductor. A center of the third connection conductor and a center of the second connection conductor are formed with a threaded section.
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公开(公告)号：US11641143B2
公开(公告)日：2023-05-02
申请号：US16759443
申请日：2018-02-07
摘要： A control device-integrated rotary electric machine that has a light weight and a small radial-direction dimension. A cylindrical member is provided between a stator formed by stacking electromagnetic steel sheets and a frame retaining the stator, such that the cylindrical member is in a press-fitted state against the stator and the frame. The cylindrical member has a flange portion at one end thereof, and the flange portion is fixed by being held between the frame and a heat sink which is a member composing a control device.
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公开(公告)号：US11342809B2
公开(公告)日：2022-05-24
申请号：US16640121
申请日：2017-09-27
摘要： To obtain a rotating electric machine capable of suppressing vibrations generated at the time of driving and achieving downsizing. The rotating electric machine includes: a rotor; a stator including a stator core provided on an outer side with respect to the rotor in a radial direction of the rotor; a motor frame, which includes a tubular portion provided on an outer side with respect to the stator core in the radial direction, and has the stator fixed thereto; and an intermediate member, which is provided on an outer peripheral surface of the stator core in the radial direction, and is held in a state of being press-fitted to an inner peripheral surface of the tubular portion in the radial direction, wherein a stiffness of the intermediate member per unit length is higher than a stiffness of the tubular portion per unit length.
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公开(公告)号：US10347447B2
公开(公告)日：2019-07-09
申请号：US15719948
申请日：2017-09-29
发明人： Hideki Miyatake , Masahiro Arioka , Tadahiro Yoshida , Toshihiro Matsunaga , Toru Kimura , Naoki Tanaka
IPC分类号： H01H33/662 , H02B13/035
摘要： A vacuum circuit breaker includes a tank containing an electrical device. An opening corresponds to a terminal of the electrical device. A porcelain tube protruding from the tank is fixed to an opening base, and has a terminal conductor. A first connection conductor in the porcelain tube is connected to the terminal conductor. A second connection conductor is arranged in the porcelain tube. A third connection conductor is arranged between the first and the second connection conductor, has a closed end concave section fitted onto the first connection conductor and is connected to the second connection conductor by a fastener. A contact is disposed between said first connection conductor and the third connection conductor. The third and second connection conductors are made of a solid conductor. A center of the third connection conductor and a center of the second connection conductor are formed with a threaded section.
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公开(公告)号：US20150248977A1
公开(公告)日：2015-09-03
申请号：US14428768
申请日：2013-06-07
发明人： Tadahiro Yoshida , Toshihiro Matsunaga , Toru Kimura , Koichi Kagawa , Hideki Miyatake , Munetaka Kashiwa
IPC分类号： H01H33/664 , H01H33/666
CPC分类号： H01H33/664 , H01H1/50 , H01H33/6606 , H01H33/662 , H01H33/666 , H01H2033/6623 , H01H2033/6665
摘要： Provided are: a vacuum valve having a fixed contact and a movable contact; a fixed side mounting plate which supports a fixed side conductor; and an operating mechanism which is coupled to a movable side conductor and performs opening and closing operation of both the contacts. The fixed side mounting plate is configured such that a plurality of plate-like members are overlapped; an exposed portion of the fixed side conductor is attached with a divided terminal which has a fitting hole to be fitted to the exposed portion and is formed with a slit in a radial direction from the fitting hole; and the divided terminal is fixed to the fixed side mounting plate and the fixed side conductor is supported by the fixed side mounting plate via the divided terminal.
摘要翻译： 提供：具有固定触点和可动触点的真空阀; 支撑固定侧导体的固定侧安装板; 以及耦合到可动侧导体并执行两个触点的打开和关闭操作的操作机构。 固定侧安装板被构造为使得多个板状构件重叠; 固定侧导体的暴露部分附着有一个分割端子，该分开的端子具有一个装配孔，以与该露出部分相配合，并且在装配孔的径向方向上形成有狭缝; 并且分割的端子固定到固定侧安装板，并且固定侧导体经由分开的端子由固定侧安装板支撑。
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