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公开(公告)号：US4644201A
公开(公告)日：1987-02-17
申请号：US754926
申请日：1985-07-15
CPC分类号： F16F15/32 , H02K7/04 , Y10T74/2111
摘要： Two or more imbalance correcting openings with the same cross-sectional configuration are provided in an armature core in parallel to a shaft in such a manner as to be equally spaced on a circumference which is concentric with the shaft, and weights are inserted in the adjacent openings to thereby correct any imbalance, the number of adjacent openings being selected to be (N-1)/2+1 or less when the number n of openings is odd and to be n/2 or less when the number n is even.
摘要翻译： 具有相同横截面构造的两个或更多个不平衡校正开口以与轴同平行的方式设置在电枢铁芯中，以便在与轴同心的圆周上等间距地配置，并且重物插入相邻 开口，从而校正任何不平衡，当n个开口为奇数时，相邻开口的数量被选择为（N-1）/ 2 + 1或更小，并且当数量n为偶数时，其数量为n / 2或更小。
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公开(公告)号：US4628720A
公开(公告)日：1986-12-16
申请号：US622157
申请日：1984-06-19
CPC分类号： B21D53/16
摘要： A method of production of a cylindrical body from a sheet of steel formed at opposite sides with projections and cutouts complementary to each other. The method comprises the steps of rolling the sheet of steel and inserting the projections in the cutouts to provide a cylindrical blank, and compressing at least one of inner and outer peripheral surfaces of the cylindrical blank in a radial direction to reduce the thickness of the cylindrical blank and to stretch a portion of the cylindrical blank in an axial direction whereby the projections inserted in the cutouts can be brought into intimate contact with each other at jointed portions.
摘要翻译： 从形成在相对侧的具有彼此互补的突起和切口的钢板制造圆柱体的方法。 该方法包括以下步骤：将钢板轧制并将突起插入切口中以提供圆柱形坯料，并且沿径向压缩圆柱形坯料的内周表面和外周表面中的至少一个以减小圆柱形坯料的厚度 并且在轴向方向上拉伸一部分圆柱形坯料，由此插入切口中的凸起可以在接合部处彼此紧密接触。
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公开(公告)号：US4745319A
公开(公告)日：1988-05-17
申请号：US707032
申请日：1985-03-01
CPC分类号： H02K1/17
摘要： A plurality of permanent magnets (4) are disposed with gaps between adjacent magnets along the inner peripheral surface of a yoke (2) of a stator for a magneto D.C. motor. In gaps between magnets, there are provided retainers (3), ech of which is made of an elastic member and consists of one surface (11) fixed on the yoke, two surfaces (12, 13) extending in the central axial direction of the D.C. motor along the side facing surfaces (71, 72) of the magnets opposite to each other on the inner peripheral surface of the yoke and two end portions (32) connecting these two surfaces (12, 13). Those two surfaces (12, 13) and end portions (32) are kept in contact with the permanent magnet from three directions, namely from both facing surfaces (71, 72) of the permanent magnet and from each of the outer surfaces (81, 82) of the magnets adjacent to each facing surface (71, 72) extending in the central axial direction, whereby the permanent magnets are pressed and clamped so as to be secured to the yoke.
摘要翻译： 多个永磁体（4）沿着用于磁直流电动机的定子的轭（2）的内周表面设置在相邻磁体之间的间隙。 在磁体之间的间隙中，设有保持器（3），它们由弹性件制成并由固定在磁轭上的一个表面（11）组成，两个表面（12,13）沿中心轴线方向延伸 DC电动机沿着磁轭的内周面上彼此相对的磁体的面向相对表面（71,72），以及连接这两个表面（12,13）的两个端部（32）。 这两个表面（12,13）和端部（32）从永久磁铁的两个相对表面（71,72）和三个方向（从每个外表面81，72）保持与永磁体接触， 82）与每个相对表面（71,72）相邻的磁体在中心轴线方向上延伸，由此永磁体被按压和夹紧以便固定到磁轭上。
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公开(公告)号：US4707630A
公开(公告)日：1987-11-17
申请号：US816449
申请日：1986-01-06
摘要： In a permanent type DC motor, a stator comprises a yoke and a plurality of magnetic pole pairs composed of permanent magnets and auxiliary poles. The plurality of magnetic pole pairs are held and fixed in intimate contact with the yoke by pressingly deforming a cylindrical thin plate made of magnetic material such as a steel plate. The fixture of the magnetic pole pairs composed of the permanent magnets and auxiliary poles is attained by a projecting part formed by pressingly deforming a part of the thin cylindrical plate made of the magnetic material toward a space between the adjacent pole pairs and by using U-shaped magnetic retaining pieces.
摘要翻译： 在永久型直流电动机中，定子包括磁轭和由永磁体和辅助磁极组成的多个磁极对。 多个磁极对通过使由诸如钢板的磁性材料制成的圆柱形薄板压制变形而与轭紧密接触地保持和固定。 由永磁体和辅助极组成的磁极对的夹具是通过将由磁性材料制成的薄的圆柱形板的一部分压向变形成相邻极对之间的空间而形成的突出部来实现的， 形磁性保持件。
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公开(公告)号：US5083054A
公开(公告)日：1992-01-21
申请号：US550585
申请日：1983-11-10
CPC分类号： H02K23/04
摘要： A permanent magnet field type DC machine in which the amount of flux from field poles is changed by effective use of armature reaction thereby to improve characteristics of the DC machine. There is provided a permanent magnet field type DC machine having field poles formed of permanent magnet members and auxiliary magnetic pole members of high permeability which are provided in parallel with each other in the direction of rotation on the peripheral surface of a yoke to oppose an armature with an air gap therebetween, the auxiliary magnetic pole members being magnetized by armature reaction thereby to change the total amount of field magnetic flux from the field poles, wherein the gap between the auxiliary magnetic pole members and armature is selected to be smaller than that between the permanent magnet members and armature, thereby decreasing the reluctances in the paths of the auxiliary magnetic pole members, so that the armature reaction can be effectively used.
摘要翻译： 一种永久磁场型直流电机，其中通过有效利用电枢反应改变来自场磁极的磁通量，从而改善直流电机的特性。 提供一种永磁场型直流电机，其具有由永磁体构成的场极和高磁导率的辅助磁极构件，它们在磁轭的周面上沿旋转方向彼此平行地设置，以与电枢相对 在它们之间具有气隙，辅助磁极构件被电枢反应磁化，从而改变来自场极的总磁场的总量，其中辅助磁极构件和电枢之间的间隙被选择为小于 永磁体和电枢，从而减小辅助磁极部件的路径中的磁阻，从而可以有效地使用电枢反应。
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公开(公告)号：US4383193A
公开(公告)日：1983-05-10
申请号：US306235
申请日：1981-09-28
申请人： Tosio Tomite , Humio Tajima , Syuichi Takamastu
发明人： Tosio Tomite , Humio Tajima , Syuichi Takamastu
CPC分类号： H02K23/04
摘要： A field pole structure of a DC motor has a plurality of field magnetic poles attached to the inner surface of a yoke of the DC motor to oppose an armature. Each magnetic pole includes a permanent magnet, and an auxiliary pole member coupled to an end of the permanent magnet directed in opposition to the rotational direction of the armature and having permeability higher than reversible permeability of the permanent magnet. The permanent magnet has a single magnet body constructed by integrally formed first and second magnet members, the first magnet member being disposed at a half of the permanent magnet remote from the auxiliary pole member and made of a magnetic material of large coersive force, and the second magnet member being interpoled between the first magnet member and the auxiliary pole member and made of a magnetic material of large residual magnetic flux density, the boundary portion between the first and second magnet members being a region in which the magnetic material of large coersive force and the magnetic material of large residual magnetic flux density are mixed.
摘要翻译： 直流电动机的场极结构具有附接到直流电动机的轭的内表面的多个场磁极与电枢相对。 每个磁极包括永磁体和辅助极构件，该辅助极构件与永久磁铁的端部相对地相对于电枢的旋转方向相对并且具有高于永磁体可逆磁导率的磁导率。 永磁体具有由整体形成的第一和第二磁体构件构成的单个磁体，第一磁体构件设置在远离辅助极构件的永磁体的一半处，并且由具有大的累积力的磁性材料制成， 第二磁体构件被内插在第一磁体构件和辅助极构件之间，并且由残留磁通密度大的磁性材料制成，第一和第二磁体构件之间的边界部分是其中大的累积力的磁性材料 并且混合具有大的剩余磁通密度的磁性材料。
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公开(公告)号：US4639625A
公开(公告)日：1987-01-27
申请号：US768323
申请日：1985-08-22
CPC分类号： H02K23/04
摘要： A direct-current machine having a rotor which includes a commutator, an armature core and an armature winding and is sustained rotatably in a field system constituted by a cylindrical housing and permanent magnets disposed inside the same. A demagnetizing force of an armature reaction due to an armature current is reduced by attaching a magnetic plate made of high saturation magnetic flux density material to a part of the pole-face of said field system of permanent magnets which is in the demagnetizing field.
摘要翻译： 一种具有转子的直流电机，该转子包括换向器，电枢铁心和电枢绕组，并且可旋转地保持在由圆柱形壳体和布置在其内的永磁体构成的现场系统中。 通过将由高饱和磁通密度材料制成的磁性板附着到处于退磁场的永久磁铁场系统的极点的一部分，减小了由电枢电流引起的电枢反作用的退磁力。
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公开(公告)号：US4510407A
公开(公告)日：1985-04-09
申请号：US502632
申请日：1983-06-09
申请人： Tosio Tomite
发明人： Tosio Tomite
CPC分类号： H02K15/03 , H02K23/04 , Y10T74/131
摘要： A permanent magnet type motor having a stator which comprises a yoke, a plurality of main magnetic poles made of permanent magnets, and a plurality of auxiliary magnetic poles, each of the main magnetic poles and each of the auxiliary magnetic poles being juxtaposed on the inner peripheral surface of the yoke, wherein each of the auxiliary magnetic poles has an axial length larger than the thickness of an armature core and smaller than the axial length of each of the main magnetic poles, wherein each of the main magnetic poles has an inner diameter smaller than the inner diameter of each of the auxiliary magnetic poles, wherein each of the main poles, before being secured on the yoke, is machined to have the inner diameter smaller than the predetermined inner diameter by a thickness to be machined, and wherein each of the main magnetic poles is machined to have the predetermined inner diameter after it has been secured together with each of the auxiliary magnetic poles onto the yoke.
摘要翻译： 一种永磁式电动机，其具有定子，该定子包括磁轭，多个由永磁体构成的主磁极和多个辅助磁极，每个主磁极和每个辅助磁极并置在内部 磁轭的周面，其中每个辅助磁极的轴向长度大于电枢铁芯的厚度，并且小于每个主磁极的轴向长度，其中每个主磁极具有内径 小于每个辅助磁极的内径，其中每个主极在被固定在磁轭上之前被加工成具有小于预定内径的内径除以待加工的厚度，并且其中每个 在与各个辅助磁极固定在轭上之后，将主磁极加工成具有预定的内径。
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公开(公告)号：US4403402A
公开(公告)日：1983-09-13
申请号：US45971
申请日：1979-06-06
CPC分类号： H02K1/28 , H02K1/2786 , Y10T29/49012 , Y10T29/49934 , Y10T29/49936 , Y10T29/49938
摘要： A magneto device for generating signals comprises a rotor including a permanent magnet and a pole piece which are secured to a rotary body, and a stator including a stationary pole piece and a signal output coil. Formed in the outer periphery of the rotary body is a recess in which the permanent magnet and the pole piece are inserted in this order. A cylindrical key member made of a non-magnetic metal is inserted in an annular space between the wall of the recess and the permanent magnet and pole piece. The key member is plastically deformed by pressing to secure the permanent magnet and pole piece to the rotary body.
摘要翻译： 一种用于产生信号的磁电装置包括一个转子，它包括固定在旋转体上的永磁体和极片，以及一个定子，它包括一个固定极片和一个信号输出线圈。 在旋转体的外周形成有以永久磁铁和极片依次插入的凹部。 由非磁性金属制成的圆柱形键构件插入在凹槽的壁与永磁体和极片之间的环形空间中。 通过按压将永磁体和极片固定到旋转体上，键构件被塑性变形。
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公开(公告)号：US4564776A
公开(公告)日：1986-01-14
申请号：US506868
申请日：1983-06-22
CPC分类号： H02K1/28 , H02K1/2786
摘要： A magneto device for generating signals comprises a rotor including a permanent magnet and a pole piece which are secured to a rotary body, and a stator including a stationary pole piece and a signal output coil. Formed in the outer periphery of the rotary body is a recess in which the permanent magnet and the pole piece are inserted in this order. A cylindrical key member made of a non-magnetic metal is inserted in an annular space between the wall of the recess and the permanent magnet and pole piece. The key member is plastically deformed by pressing to secure the permanent magnet and pole piece to the rotary body.
摘要翻译： 一种用于产生信号的磁电装置包括一个转子，它包括固定在旋转体上的永磁体和极片，以及一个定子，它包括一个固定极片和一个信号输出线圈。 在旋转体的外周形成有以永久磁铁和极片依次插入的凹部。 由非磁性金属制成的圆柱形键构件插入在凹槽的壁与永磁体和极片之间的环形空间中。 通过按压将永磁体和极片固定到旋转体上，键构件被塑性变形。
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