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公开(公告)号：US20160329768A1
公开(公告)日：2016-11-10
申请号：US15110973
申请日：2014-10-23
发明人： Yoshiaki KANO , Kousuke SATO , Noriyuki TAKAHASHI
CPC分类号： H02K3/28 , H02K41/031
摘要： A linear motor that displaces a tubular body and a rod relative to each other in an axial direction includes teeth arranged in the axial direction so as to project from an inner peripheral surface of the tubular body, slots formed between adjacent teeth, coils disposed in the slots, and permanent magnets provided in the rod and arranged in the axial direction. The coils are constituted by one or more first phase coils, one or more second phase coils, and one or more third phase coils. The first, second, and third phase coils are provided in the axial direction such that the first phase coil and the second phase coil are disposed at respective ends the tubular body. A total number of coil windings of the third phase coils is set to be smaller than a total number of coil windings of the first phase coils and a total number of coil windings of the second phase coils.
摘要翻译： 管状体和杆相对于轴向移动的线性马达包括沿轴向布置的齿，以便从管状体的内周面突出，在相邻齿之间形成的槽，设置在管状体中的线圈 槽和设置在杆中并沿轴向布置的永磁体。 线圈由一个或多个第一相线圈，一个或多个第二相线圈和一个或多个第三相线圈构成。 第一，第二和第三相线圈沿轴向设置，使得第一相线圈和第二相线圈设置在管状体的相应端。 将第三相线圈的线圈绕组的总数设定为小于第一相线圈的线圈绕组的总数和第二相线圈的线圈绕组的总数。
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公开(公告)号：US20180254692A1
公开(公告)日：2018-09-06
申请号：US15759206
申请日：2016-08-31
发明人： Kousuke SATOU , Yoshiaki KANO
IPC分类号： H02K41/03
CPC分类号： H02K41/031 , H02K41/02 , H02K41/03 , H02K2207/03
摘要： A linear motor includes a hollow cylindrical core, a shaft having a shape of a cylindrical tube, and a sleeve. A plurality of coils are arranged at axial intervals at the inner circumferential side of the core. A plurality of permanent magnets are arranged at axial intervals in the shaft. The shaft is axially movable inside the core. The sleeve is formed from a non-magnetic element, and disposed between the core and the shaft over the entire length of the core.
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公开(公告)号：US20160336825A1
公开(公告)日：2016-11-17
申请号：US15106496
申请日：2014-10-23
发明人： Yoshiaki KANO , Kousuke SATO , Noriyuki TAKAHASHI
CPC分类号： H02K3/28 , H02K3/12 , H02K41/02 , H02K41/031 , H02K2213/03
摘要： A linear motor has a tubular body and a rod that penetrates the tubular body in an axial direction, and is configured to displace the tubular body and the rod relative to each other in the axial direction. The linear motor includes: 12n+1 (where n is a positive integer) teeth arranged in the axial direction so as to project from an inner peripheral surface of the tubular body; 12n slots respectively formed between adjacent teeth of the plurality of teeth; 12n coils respectively disposed in the slots; and a plurality of permanent magnets held in the rod so as to be arranged in the axial direction. The respective coils are formed by being wound around an axis of the rod in an identical direction, and the number of permanent magnets positioned in the tubular body is set to 8n.
摘要翻译： 线性电动机具有管状体和杆，其在轴向方向上穿过管状体，并且构造成使管状体和杆相对于轴向移位。 线性电动机包括：沿轴向布置的12n + 1（其中n为正整数），从管状体的内周面突出; 分别形成在所述多个齿的相邻齿之间的12n槽; 分别设置在槽中的12n个线圈; 以及多个永磁体，其被保持在所述杆中以沿轴向布置。 相应的线圈通过围绕杆的轴线以相同的方向缠绕而形成，并且定位在管状体中的永磁体的数量被设定为8n。
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公开(公告)号：US20160329800A1
公开(公告)日：2016-11-10
申请号：US15110122
申请日：2014-10-23
发明人： Yoshiaki KANO , Kousuke SATO , Noriyuki TAKAHASHI
CPC分类号： H02K41/031 , H02K1/08 , H02K1/12 , H02K29/03 , H02K2213/03
摘要： A linear motor includes a tubular yoke and a rod that penetrates the yoke in an axial direction, and is configured to displace the yoke and the rod relative to each other in the axial direction. The linear motor includes a plurality of teeth arranged in the axial direction so as to project in a radial direction from an inner peripheral surface of the yoke, slots formed between adjacent teeth of the plurality of teeth, coils disposed respectively in the slots, and a plurality of permanent magnets held in the rod so as to be arranged in the axial direction. At least one of two slots positioned on outermost sides in the axial direction is configured such that a slow width thereof is narrower than the slot width of the remaining slots.
摘要翻译： 线性电动机包括管状轭和沿轴向贯通轭的杆，并且构造成使轭和杆相对于轴向移位。 线性电动机包括沿轴向布置的多个齿，以从轭的内周面向径向突出，形成在多个齿的相邻齿之间的槽，分别设置在槽中的线圈和 多个永磁体被保持在杆中以沿轴向布置。 位于轴向最外侧的两个狭槽中的至少一个被配置成使得其缓慢的宽度比其余槽的槽宽窄。
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公开(公告)号：US20160329759A1
公开(公告)日：2016-11-10
申请号：US15110961
申请日：2014-10-23
发明人： Yoshiaki KANO , Kousuke SATO , Noriyuki TAKAHASHI
CPC分类号： H02K1/165 , H02K1/34 , H02K3/28 , H02K29/03 , H02K41/031 , H02K2213/03
摘要： A linear motor includes: an annular yoke; a rod that penetrates the yoke in a yoke axis direction; a plurality of teeth disposed at equal intervals in the yoke axis direction so as to project from an inner peripheral surface of the yoke; slots respectively formed between adjacent teeth of the plurality of teeth, a plurality of coils respectively disposed in the slots, and permanent magnets arranged and held in the rod in the yoke axis direction. The yoke is configured so that the slots are disposed repeatedly by a reference number determined in accordance with the number of phases of an alternating current passed through the coils, and a width adjusting unit configured to adjust a tooth width is provided in an Nth tooth from a yoke end, the Nth tooth being determined by Equation (1).
摘要翻译： 线性马达包括：环形轭; 在轭铁轴方向上穿过轭的杆; 多个齿沿磁轭轴线方向等间隔设置，从轭的内周面突出; 分别形成在所述多个齿的相邻齿之间的槽，分别设置在所述槽中的多个线圈以及沿所述轭轴线方向布置并保持在所述杆中的永磁体。 磁轭被构造成使得槽被重复地设置为根据通过线圈的交流电流的数量确定的参考数，并且在第N个齿中设置调整齿宽度的宽度调节单元 轭结端，第N齿由等式（1）确定。
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公开(公告)号：US20200244153A1
公开(公告)日：2020-07-30
申请号：US16636744
申请日：2018-08-14
申请人： KYB CORPORATION
IPC分类号： H02K41/03
摘要： To achieve the above object, a cylindrical linear motor of the present invention includes a cylindrical linear motor includes: a core having a cylindrical yoke, and a plurality of teeth that are annular and are provided at intervals in an axial direction on an outer periphery of the yoke; a winding mounted in slots between the teeth; and a field which is cylindrical and in which the core is inwardly inserted movably in the axial direction to arrange N poles and S poles alternately in the axial direction, wherein the field has permanent magnets of a main magnetic pole radially magnetized and permanent magnets of a sub magnetic pole axially magnetized that are alternately arranged in a Halbach array in the axial direction, an axial length of the permanent magnet of the main magnetic pole is longer than an axial length of the permanent magnet of the sub magnetic pole, and the permanent magnet of the sub magnetic pole has a coercive force higher than that of the permanent magnet of the main magnetic pole.
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公开(公告)号：US20210313867A1
公开(公告)日：2021-10-07
申请号：US17274492
申请日：2019-03-25
申请人： KYB Corporation
IPC分类号： H02K41/03
摘要： A tubular linear motor according to the present invention includes a core having a plurality of teeth having a tubular shape and provided on an outer periphery at equal intervals in an axial direction, winding wires of three phases of U-phase, V-phase, and W-phase mounted in slots between the teeth and of the core, and a field magnet having a tubular shape, in which the core is inserted inward so as to be movable in the axial direction, and a north magnetic pole and a south magnetic pole are alternately disposed on the inner periphery side in the axial direction, the field magnet has a yoke between the magnetic poles and in the axial direction, and the tubular linear motor has a two-pole 6n slot structure in which 6n slots are facing two poles, provided that n is an integer of 1 or more.
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公开(公告)号：US20200212787A1
公开(公告)日：2020-07-02
申请号：US16620972
申请日：2018-10-22
申请人： KYB CORPORATION
IPC分类号： H02K41/03
摘要： To achieve the foregoing object, a tubular linear motor of the present invention includes a core that has a tubular yoke and a plurality of teeth which are annular and provided at intervals in an axial direction on an outer periphery of the yoke; a winding mounted in a slot between the teeth; and a field magnet that is tubular, into which the core is movably inserted in the axial direction, and having N poles and S poles alternately arranged in the axial direction. An axial width W of a yoke-side inner peripheral edge of the teeth is larger than an axial width of an outer peripheral edge of the teeth.
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