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公开(公告)号：US20210203198A1
公开(公告)日：2021-07-01
申请号：US17123681
申请日：2020-12-16
发明人： Manabu HORIUCHI , Yasushi MISAWA , Jun KITAJIMA , Mai SHIMIZU
摘要： In a frame structure of a motor, when the number of angles of a frame is 4M (M is a natural number, and M≥1), and the number of slots of an armature core is 6N (N is a natural number, and N≥1), the armature core is inserted into the frame in such a manner as to form a variation θ within a predetermined range in a circumferential direction between a reference line that is orthogonal to two opposing sides of the frame and passes through a rotation axis of the frame, and a straight line linking magnetic poles symmetric about a point with respect to the rotation axis.
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公开(公告)号：US20220399792A1
公开(公告)日：2022-12-15
申请号：US17740469
申请日：2022-05-10
发明人： Satoshi INABA , Yuki ONDA , Yasushi MISAWA
摘要： A linear head module includes a plurality of linear units each having an output member, and a housing. The linear unit has a mover and a stator. The stator has an output-side bearing holder and a counter-output-side bearing holder. The housing has: a main body portion integrally including an output-side surface portion, a counter-output-side surface portion, and a coupling portion that couples the output-side surface portion and the counter-output-side surface portion; a flange facing the output-side surface portion; and a bracket facing the counter-output-side surface portion.
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公开(公告)号：US20220368191A1
公开(公告)日：2022-11-17
申请号：US17771092
申请日：2020-12-10
IPC分类号： H02K5/22
摘要： A stator sub-assembly with a connector includes a stator sub-assembly including a stator core and a rigid wiring board, and a connector fixed to a connector mounting part of the rigid wiring board in such a way that it is opposed to the stator core in the radial direction of the frame. A groove part that extends in the axial direction from an opening in the axial direction and accommodates the connector and the connector mounting part is formed in an inner peripheral surface of the frame. A window part for an opponent connector to mate with the connector accommodated in the groove part is formed in the frame. The window part opens in an outer surface of the frame and an inner surface of the groove part, and has an unbroken inner peripheral surface.
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公开(公告)号：US20230179071A1
公开(公告)日：2023-06-08
申请号：US17991224
申请日：2022-11-21
摘要： Provided is a rotor of an interior permanent magnet synchronous motor, including a plurality of poles, wherein each of the plurality of poles includes a plurality of magnets, and the plurality of magnets is provided in such a manner that a magnetomotive force resulting from each magnet becomes weaker with increasing distance from a magnet center.
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公开(公告)号：US20220399793A1
公开(公告)日：2022-12-15
申请号：US17747621
申请日：2022-05-18
发明人： Satoshi INABA , Yuki ONDA , Yasushi MISAWA
摘要： A linear motor includes: a mover including an output shaft portion extending in a direction of a thrust axis; a detection portion configured to be capable of detecting a position of the output shaft portion in the direction of the thrust axis; and a detected portion fixed to the mover, the mover further includes: a mounting base to which the detected portion is attached; and a metal fastening member that fastens the mounting base to an end surface, on one side in the direction of the thrust axis, of the output shaft portion, and the mounting base includes: a metal fastened portion sandwiched between the end surface, on the one side in the direction of the thrust axis, of the output shaft portion, and the fastening member; and a resin mounting portion having a mounting surface to which the detected portion is attached, the mounting surface being provided at a position off the thrust axis.
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公开(公告)号：US20220399794A1
公开(公告)日：2022-12-15
申请号：US17837080
申请日：2022-06-10
发明人： Satoshi INABA , Yuki ONDA , Yasushi MISAWA
IPC分类号： H02K41/035 , H02K11/22
摘要： A linear head module includes: a plurality of linear motors each including a mover having an output shaft portion; a plurality of detection portions each configured to detect a position of the respective output shaft portion in a direction of a thrust axis; a single circuit board provided with the plurality of detection portions; and a detected portion provided to the respective mover, the detected portion is fixed to the mover via a mounting base, and as viewed in the direction of the thrust axis, a direction in which the mounting base extends from the output shaft portion is different from a direction in which the output shaft portion and the circuit board face each other.
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公开(公告)号：US20170054354A1
公开(公告)日：2017-02-23
申请号：US15236514
申请日：2016-08-15
CPC分类号： H02K33/18 , H02K1/06 , H02K1/17 , H02K1/34 , H02K3/12 , H02K5/08 , H02K41/031 , H02K2213/03 , H02K2213/12
摘要： A linear motor includes a field core, a stator that includes a plurality of permanent magnets disposed on the field core, and an armature core that includes an armature winding wire, the armature core being disposed via a magnetic void with the permanent magnets. Assuming that a length of the armature core in a traveling direction of the linear motor is Lc, a pitch of the permanent magnets is τp, and N is a natural number, the length Lc of the armature core is specified by (N×τp−0.2×τp)≦Lc≦(N×τp+0.2×τp).
摘要翻译： 线性电动机包括场磁芯，定子，其包括设置在励磁铁心上的多个永久磁铁，以及包括电枢绕组线的电枢铁心，所述电枢铁芯经由磁性空间与所述永久磁铁配置。 假设电动铁芯在直线电动机的行进方向上的长度为Lc，则永磁体的间距为τp，N为自然数，电枢铁心的长度Lc由（N×τp- 0.2×τp）≤Lc≤（N×τp+ 0.2×τp）。
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