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公开(公告)号：US08253286B2
公开(公告)日：2012-08-28
申请号：US12719896
申请日：2010-03-09
IPC分类号： H02K7/00
CPC分类号： F04D25/062 , H02K5/163
摘要： A motor includes a coming-off preventing portion including an inner circumferential edge defining a through hole, inside which a substantially cylindrical bearing housing is inserted, and being arranged axially above an insulator. The inner circumferential edge has at least two different radial dimensions. A boss portion includes a columnar portion inserted inside the through hole, and a collar portion extending radially outward from a lower end of the columnar portion. The collar portion includes an outside surface having at least two different radial dimensions, and an upper surface arranged axially opposite a bottom portion of the inner circumferential edge. The radial dimensions of the inner circumferential edge and those of the collar portion are arranged to allow the collar portion to be axially inserted through the inner circumferential edge only when the inner circumferential edge and the collar portion are arranged in a predetermined circumferential orientation relative to each other.
摘要翻译： 电动机包括防脱部分，其包括限定通孔的内周边缘，其中插入有大致圆柱形的轴承壳体，并且轴向地布置在绝缘体上方。 内圆周边缘具有至少两个不同的径向尺寸。 凸台部分包括插入在通孔内的柱状部分和从柱状部分的下端径向向外延伸的凸缘部分。 套环部分包括具有至少两个不同径向尺寸的外表面和与内圆周边缘的底部轴向相对布置的上表面。 内圆周边缘和轴环部分的径向尺寸被布置成仅当内周边缘和凸缘部分相对于每个边缘以预定的圆周方向布置时才允许轴环部分轴向插入穿过内周边缘 其他。
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公开(公告)号：US20090285699A1
公开(公告)日：2009-11-19
申请号：US12466404
申请日：2009-05-15
申请人： Koji Muraoka , Junpei Kitamura , Masashi Hirayama , Takuya Teramoto , Hiroyoshi Teshima , Yuji Yabuuchi
发明人： Koji Muraoka , Junpei Kitamura , Masashi Hirayama , Takuya Teramoto , Hiroyoshi Teshima , Yuji Yabuuchi
CPC分类号： F04D25/0633 , F04D25/0646 , H02K1/146 , H02K1/187 , H02K5/163 , H02K7/09 , H02K7/14 , H02K2211/03
摘要： An electric motor includes a stator portion, a rotor portion, and a bearing mechanism, wherein the rotor portion includes a rotor holder having a substantially cylindrical shape with a closed end, and a field magnet fixed to an inner circumference of the rotor holder; the stator portion includes a stator, a base portion to which the stator is fixed, and a magnetic member; and the magnetic member includes a cylindrical portion having a substantially cylindrical shape into which a lower end portion of an insulator of the stator is inserted, the lower end portion being a portion of an outer portion of the insulator and opposing the base portion, and a flat portion having a substantially annular shape which spreads outwardly in a radial direction from a lower edge of the cylindrical portion and opposes a lower edge of the field magnet.
摘要翻译： 电动机包括定子部分，转子部分和轴承机构，其中转子部分包括具有闭合端的大致圆柱形的转子保持器和固定到转子保持器的内周的磁场磁体; 定子部分包括定子，固定有定子的基部和磁性部件; 并且所述磁性构件包括具有基本上圆柱形形状的圆柱形部分，所述定子的绝缘体的下端部插入所述圆筒形部分中，所述下端部分是所述绝缘体的外部部分并与所述基部相对的部分， 平坦部分具有基本上环形的形状，其从圆柱形部分的下边缘沿径向向外扩展并且与场磁体的下边缘相对。
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公开(公告)号：US08870528B2
公开(公告)日：2014-10-28
申请号：US13406556
申请日：2012-02-28
申请人： Takuya Teramoto , Hiroyoshi Teshima
发明人： Takuya Teramoto , Hiroyoshi Teshima
CPC分类号： F04D25/0613 , F04D25/082 , F04D29/023 , F05D2260/96 , F05D2300/43
摘要： A ventilation fan arranged to reduce vibrations includes an impeller rotating around a center axis, a motor portion arranged to rotate the impeller, a motor supporting portion arranged to support the motor portion, and a housing arranged to accommodate the impeller and the motor portion. The motor supporting portion includes a substantially disk-shaped base portion, and a substantially cylindrical bearing holding portion axially extending with the center axis as the center. At least the base portion is made from resin. On the surface of the base portion, a plurality of recessed portions which are axially recessed are arranged in the form of a net, a staggered pitch, a grid, or a honeycomb. A flat portion of the base portion excluding the recessed portions does not have a continuous region extending in a straight line radially from the center of the base portion.
摘要翻译： 布置成减少振动的通风扇包括围绕中心轴线旋转的叶轮，布置成旋转叶轮的马达部分，布置成支撑马达部分的马达支撑部分，以及容纳叶轮和马达部分的壳体。 马达支撑部分包括基本上圆盘形的基部和以中心轴线为中心轴向延伸的大致圆柱形的轴承保持部分。 至少基部由树脂制成。 在基部的表面上，以网状，交错的间距，网格或蜂窝状的形式布置有轴向凹入的多个凹部。 除了凹部之外的基部的平坦部分不具有从基部的中心沿径向延伸的直线延伸的连续区域。
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公开(公告)号：US08092195B2
公开(公告)日：2012-01-10
申请号：US12466404
申请日：2009-05-15
申请人： Koji Muraoka , Junpei Kitamura , Masashi Hirayama , Takuya Teramoto , Hiroyoshi Teshima , Yuji Yabuuchi
发明人： Koji Muraoka , Junpei Kitamura , Masashi Hirayama , Takuya Teramoto , Hiroyoshi Teshima , Yuji Yabuuchi
IPC分类号： H02K1/18
CPC分类号： F04D25/0633 , F04D25/0646 , H02K1/146 , H02K1/187 , H02K5/163 , H02K7/09 , H02K7/14 , H02K2211/03
摘要： An electric motor includes a stator portion, a rotor portion, and a bearing mechanism, wherein the rotor portion includes a rotor holder having a substantially cylindrical shape with a closed end, and a field magnet fixed to an inner circumference of the rotor holder; the stator portion includes a stator, a base portion to which the stator is fixed, and a magnetic member; and the magnetic member includes a cylindrical portion having a substantially cylindrical shape into which a lower end portion of an insulator of the stator is inserted, the lower end portion being a portion of an outer portion of the insulator and opposing the base portion, and a flat portion having a substantially annular shape which spreads outwardly in a radial direction from a lower edge of the cylindrical portion and opposes a lower edge of the field magnet.
摘要翻译： 电动机包括定子部分，转子部分和轴承机构，其中转子部分包括具有闭合端的大致圆柱形的转子保持器和固定到转子保持器的内周的磁场磁体; 定子部分包括定子，固定有定子的基部和磁性部件; 并且所述磁性构件包括具有基本上圆柱形形状的圆柱形部分，所述定子的绝缘体的下端部插入所述圆筒形部分中，所述下端部分是所述绝缘体的外部部分并与所述基部相对的部分， 平坦部分具有基本上环形的形状，其从圆柱形部分的下边缘沿径向向外扩展并且与场磁体的下边缘相对。
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