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公开(公告)号：US20130195634A1
公开(公告)日：2013-08-01
申请号：US13750472
申请日：2013-01-25
发明人： Takayuki MASHIMA , Yoichi KAWAI
IPC分类号： F04D19/00
CPC分类号： F04D19/002 , F04D25/0613 , F04D29/662
摘要： A fan device includes a rotor 20 and recesses 40 to be filled with claylike weights 70. The rotor 20 includes an impeller 23 and a shaft 10. The impeller 23 has a hub 21 and vanes 22. The recesses 40 are provided on a surface 212 that crosses an axial direction of the hub 21. Each recess 40 has a first area 41 and a second area 42. The first area 41 is circumferentially arranged and extends in a substantially circumferential direction. The second area 42 is connected to an outer circumferential side of the first area 41 and has a shorter length in the circumferential direction than the first area 41. The weight 70 is closely adhered to wall surfaces 421 and 422 formed along a radial direction in the second area 42 so as to prevent separation thereof.
摘要翻译： 风扇装置包括转子20和填充有粘土样重物70的凹槽40.转子20包括叶轮23和轴10.叶轮23具有毂21和叶片22.凹部40设置在表面212上 每个凹部40具有第一区域41和第二区域42.第一区域41沿圆周方向布置并沿大致圆周方向延伸。 第二区域42连接到第一区域41的外周侧，并且具有比第一区域41在圆周方向上更短的长度。重物70紧密地附着在沿着径向方向形成的壁表面421和422 第二区域42，以防止其分离。
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公开(公告)号：US20130093268A1
公开(公告)日：2013-04-18
申请号：US13650833
申请日：2012-10-12
IPC分类号： H02K37/14
CPC分类号： H02K37/14 , H02K1/02 , H02K2213/03
摘要： A stepping motor uses a low-cost ferrite magnet instead of an expensive rare-earth magnet. The stepping motor has characteristics equivalent or superior to those of a conventional stepping motor. The stepping motor is provided with a rotor 300, a stator yoke 200, and bearings 501 and 502 which rotatably hold the rotor 300 with respect to the stator yoke 200. The rotor 300 has a columnar shape and has plural magnetic poles arranged in the circumferential direction of the outer circumferential surface. The stator yoke 200 has an outer cylindrical portion and an inner circumferential portion which surrounds the rotor 300 and which has plural first pole teeth and plural second pole teeth. The outer diameter “d” of the rotor 300 and the outer diameter “D” of the stator yoke 200 are set so that the ratio of “d/D” is greater than 0.6.
摘要翻译： 步进电机使用低成本铁氧体磁体代替昂贵的稀土磁体。 步进电动机具有与常规步进电动机相当或优于其特征的特征。 该步进电动机设置有转子300，定子磁轭200以及可相对于定子磁轭200可转动地保持转子300的轴承501和502.转子300具有圆柱形状并且具有设置在周向上的多个磁极 外周面的方向。 定子线圈200具有外圆筒部和围绕转子300的内周部，并且具有多个第一极齿和多个第二极齿。 转子300的外径“d”和定子磁轭200的外径“D”被设定为使得“d / D”的比率大于0.6。
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公开(公告)号：US20120299437A1
公开(公告)日：2012-11-29
申请号：US13577029
申请日：2010-03-09
申请人： Toshiyuki Nishikata , Hideki Noto
发明人： Toshiyuki Nishikata , Hideki Noto
IPC分类号： H02K1/28
CPC分类号： G11B17/0282 , G11B19/2009
摘要： A ring-shaped back yoke and a ring-shaped magnet are provided on a bottom surface of a ring-shaped opening part formed at a central portion of an alignment ring of a turntable part. The back yoke is provided with a protruding pawl which protrudes in a direction perpendicular to a plane of the back yoke, and the alignment ring is provided with a through hole into which the protruding pawl is inserted when mounting the back yoke to the alignment ring. The protruding pawl of the back yoke and an upper surface of a rotor frame are fixed together using an adhesive.
摘要翻译： 在形成在转台的对位环的中央部的环状的开口部的底面设有环状的背轭和环状的磁铁。 背轭设置有突出的棘爪，该突出爪在垂直于后轭的平面的方向上突出，并且当将后轭安装到对准环时，对准环设置有通孔，突出爪插入该通孔中。 背轭的突出爪和转子框架的上表面使用粘合剂固定在一起。
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公开(公告)号：US20120161552A1
公开(公告)日：2012-06-28
申请号：US13311978
申请日：2011-12-06
摘要： A stepping motor for a meter to rotate a pointer of a meter, the stepping motor for a meter includes: a rotor part having: a cylindrical magnet; and a rotational shaft, which is hollow and made of a resin, and which is molded on an inner periphery of the cylindrical magnet and is coaxial with the cylindrical magnet; a stator part that contains the rotor part therein and has an excitation coil; a front plate made of a resin, and an end plate made of a resin, wherein a fixing part to fix the cylindrical magnet is molded when molding the rotational shaft, and wherein the cylindrical magnet is fixed by the fixing part so that the cylindrical magnet and the rotational shaft are integrated.
摘要翻译： 一种用于使仪表旋转计量器的指针的步进电机，所述用于仪表的步进电机包括：具有圆柱形磁体的转子部分; 以及旋转轴，其是中空的并且由树脂制成，并且被模制在所述圆柱形磁体的内周上并且与所述圆柱形磁体同轴; 定子部分，其中包含转子部分并具有励磁线圈; 由树脂制成的前板和由树脂制成的端板，其中在成型旋转轴时模制固定圆柱形磁体的固定部分，并且其中圆柱形磁体通过固定部分固定，使得圆柱形磁体 并且旋转轴被集成。
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公开(公告)号：US08183730B2
公开(公告)日：2012-05-22
申请号：US13179366
申请日：2011-07-08
申请人： Minoru Kuroda
发明人： Minoru Kuroda
摘要： A small DC motor includes a motor frame having a cylindrical portion, the cylindrical portion having a constant thickness and having a cross section in a shape that comprises four sides and connecting portions, each of the connecting portions connecting adjacent two of the four sides and being located inward from a corresponding corner in a quadrangle comprising the four sides; and a magnet having a circumferential surface on an inside thereof and having conformable contact with the motor frame on an outside thereof.
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公开(公告)号：US08084906B2
公开(公告)日：2011-12-27
申请号：US12445845
申请日：2007-10-09
申请人： Masahito Hidaka , Kinjirou Okinaga , Koji Kuyama
发明人： Masahito Hidaka , Kinjirou Okinaga , Koji Kuyama
CPC分类号： G11B19/2018 , H02K5/163 , Y10T29/49009
摘要： A brushless motor is provided which has excellent anti-impact properties and is easily assembled even if the brushless motor is reduced in size. A stator (2) includes a bearing (5) for holding a rotating shaft (3), a bearing housing (6) in which the bearing (5) is placed vertically relative to the stator base (1), a thrust plate (7) for receiving one end of the rotating shaft (3) in a thrust direction, a metal thrust cover (8) for holding the thrust plate (7), a metal installation member (25) including an annular section (25a) which is superposed over a base (6b) of the bearing housing (6) and projecting pin sections (25b) which project from the annular section (25a) to the outer periphery of the thrust cover (8). The projecting pin sections (25b) of the installation member (25) have projection sections welded to the thrust cover (8).
摘要翻译： 提供了一种无刷电动机，其具有优异的抗冲击性能，并且即使无刷电动机的尺寸减小也容易组装。 定子（2）包括用于保持旋转轴（3）的轴承（5），轴承壳体（6），其中轴承（5）相对于定子基座（1）垂直放置，止推板（7） ），用于沿推力方向接收所述旋转轴（3）的一端，用于保持所述止推板（7）的金属推力盖（8），包括重叠的环形部分（25a）的金属安装构件（25） 在轴承壳体（6）的基部（6b）和从环形部（25a）突出到推力盖（8）的外周的突出销部分（25b）之间。 安装构件（25）的突出销部分（25b）具有焊接到推力盖（8）的突出部分。
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公开(公告)号：US20110266906A1
公开(公告)日：2011-11-03
申请号：US13179366
申请日：2011-07-08
申请人： Minoru KURODA
发明人： Minoru KURODA
IPC分类号： H02K23/04
摘要： A small DC motor includes a motor frame having a cylindrical portion, the cylindrical portion having a constant thickness and having a cross section in a shape that comprises four sides and connecting portions, each of the connecting portions connecting adjacent two of the four sides and being located inward from a corresponding corner in a quadrangle comprising the four sides; and a magnet having a circumferential surface on an inside thereof and having conformable contact with the motor frame on an outside thereof.
摘要翻译： 小直流电动机包括具有圆筒部的电动机框架，该圆筒部具有恒定的厚度，并且具有包括四个侧面和连接部分的形状的横截面，每个连接部分连接在四个侧面中的两个之间，并且是 位于包括四边的四边形中的相应角部的内侧; 以及在其内侧具有圆周表面并且在其外侧上与电动机框架一致地接触的磁体。
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公开(公告)号：US08030815B2
公开(公告)日：2011-10-04
申请号：US12092847
申请日：2006-12-22
申请人： Michihiro Shimizu
发明人： Michihiro Shimizu
CPC分类号： H02K5/1675 , H02K5/00 , H02K15/00
摘要： A brushless motor to be used for driving a vane pump, which is employed in a module for inspecting vapor leakage of fuel, is disclosed. The brushless motor includes a mounting plate having a through hole, and an annular space is formed between an inner wall of the through hole and an outer wall of a projection of a motor housing. This annular space allows preventing a welding current from flowing into the projection.
摘要翻译： 公开了一种用于驱动叶片泵的无刷电动机，其用于检查燃料的蒸汽泄漏的模块中。 无刷电动机包括具有通孔的安装板，并且在通孔的内壁和电动机壳体的突起的外壁之间形成环形空间。 该环形空间允许防止焊接电流流入突出部。
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9.发明授权Method and apparatus for controlling stopping of vibration generating stepping motor 有权用于控制振动产生步进电机停止的方法和装置公开(公告)号：US07825619B2
公开(公告)日：2010-11-02
申请号：US11794331
申请日：2006-12-28
摘要： A method for controlling stopping of a vibration generating stepping motor is a method for controlling the stopping of an vibration generating stepping motor by a control unit, characterized in that the method includes: stopping a supply of a driving pulse to the vibration generating stepping motor while applying a driving voltage to the vibration generating stepping motor; applying the driving voltage to the stepping motor, which does not completely stop, for an optimum braking time according to a motor configuration of the stepping motor, so as to brake the stepping motor; and stopping the applying of the driving voltage to the stepping motor which is rotating under inertia after the elapse of the optimum braking time.
摘要翻译： 一种用于控制振动产生步进电机的停止的方法是一种通过控制单元控制振动产生步进电动机的停止的方法，其特征在于该方法包括：停止向振动产生步进电动机供应驱动脉冲，同时 向振动产生步进电机施加驱动电压; 根据步进电机的电动机结构，将驱动电压施加到不完全停止的步进电机达到最佳制动时间，从而制动步进电动机; 并且在经过最佳制动时间之后停止对在惯性下旋转的步进电机施加驱动电压。
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公开(公告)号：US20100181857A1
公开(公告)日：2010-07-22
申请号：US12659481
申请日：2010-03-10
申请人： Minoru Kuroda
发明人： Minoru Kuroda
IPC分类号： H02K23/04
摘要： A small DC motor includes a motor frame having a cylindrical portion, the cylindrical portion having a constant thickness and having a cross section in a shape that comprises four sides and connecting portions, each of the connecting portions connecting adjacent two of the four sides and being located inward from a corresponding corner in a quadrangle comprising the four sides; and a magnet having a circumferential surface on an inside thereof and having conformable contact with the motor frame on an outside thereof.
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