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公开(公告)号：US20140053170A1
公开(公告)日：2014-02-20
申请号：US13658984
申请日：2012-10-24
发明人： Hyung Ki MOON , Hong Joo Lee
CPC分类号： G11B19/2009 , H02K1/187 , H02K7/085 , H02K7/086 , H02K21/22 , H02K2213/03
摘要： There is provided a spindle motor for a 2.5″ type disk driving device, including: a base having a stator core seating part protruding upwardly in an axial direction; a stator core including a ring-shaped coreback part, a tooth part, and a front end part; and a coil wound around the stator core, wherein when a length of the stator core from an inner end portion of the coreback part to the endmost part of the front end part is defined as L and a height of the wound coil from the lowermost edge of the coil in an axial direction to the uppermost edge thereof is defined as H, a ratio (H/L) of the height of the wound coil to the length of the stator core in which back electromotive force (B-EMF) is 0.35 V/Krpm or more when the supply of power is stopped satisfies 0.524≦H/L≦0.703.
摘要翻译： 提供了一种用于2.5“型盘驱动装置的主轴电机，包括：具有沿轴向向上突出的定子芯座部的基座; 定子铁心，其包括环形的后靠部，齿部和前端部; 以及缠绕在所述定子铁芯上的线圈，其中当所述定子铁心从所述内芯部分的内端部分到所述前端部分的最末端部分的长度被定义为L并且所述绕线线圈的最下边缘的高度 线圈的最高边缘的轴向的线圈长度的定义为H，绕线圈的高度与反电动势（B-EMF）为0.35的定子铁芯的长度的比（H / L） 当电力供应停止时，V / Krpm或更高满足0.524 @ H / L @ 0.703。
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公开(公告)号：US20140175928A1
公开(公告)日：2014-06-26
申请号：US13785704
申请日：2013-03-05
发明人： Hong Joo LEE , Hyung Ki MOON , Ju Ho KIM , Hak Kwan KIM , Hyun Ho SHIN
IPC分类号： H02K1/27
CPC分类号： H02K1/2786 , G11B19/2009 , H02K5/1677 , H02K5/24 , H02K7/09
摘要： There is provided a spindle motor including a stator including a base member in which a stator core is fixedly installed, and a rotor including a rotor hub in which a driving magnet disposed to face the stator core is installed, wherein the driving magnet is installed on a magnet mounting part provided in the rotor hub so that the magnetic center thereof in an axial direction is disposed in a position higher than that of the magnetic center of the stator core in the axial direction in order to generate force directed in a downward axial direction by interaction with the stator core, and the stator core is formed of a soft magnetic material and includes protrusion parts formed at a front end portion thereof disposed to face the driving magnet and extended therefrom in the axial direction.
摘要翻译： 提供了一种主轴电动机，其包括定子，该定子包括固定有定子铁心的基体部件，以及转子，该转子包括转子毂，其中安装有面向定子铁芯的驱动磁体，其中驱动磁体安装在 设置在所述转子轮毂中的磁体安装部，使得其轴向的磁中心位于比所述定子芯的磁中心的轴向更高的位置，以产生朝向轴向的力 通过与定子铁芯的相互作用，定子铁芯由软磁性材料形成，并且包括形成在其前端部分的突出部分，其设置成面对驱动磁体并沿轴向从其延伸。
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公开(公告)号：US20140175913A1
公开(公告)日：2014-06-26
申请号：US13773779
申请日：2013-02-22
发明人： Hong Joo LEE , Hyung Ki MOON , Ju Ho KIM , Hyun Ho SHIN
IPC分类号： H02K5/24
CPC分类号： H02K5/24 , H02K1/2786 , H02K21/22
摘要： A spindle motor includes a stator including a base member having a stator core installed thereon; and a rotor including a rotor hub in which a driving magnet facing the stator core is installed. The rotor hub includes a disk-shaped body, a magnet mounting part extended from edge of the body in a downward axial direction and having the driving magnet installed on an inner surface thereof, and a disk support part extended from the magnet mounting part in radial direction. A magnetic center of the driving magnet is higher than that of the stator core in the axial direction in order to generate force directed in the downward axial direction through interaction with the stator core. The magnet mounting part includes a vortex generation suppressing part disposed on a lower edge portion thereof to decrease noise and vibrations generated by flow of air during rotation of the rotor hub.
摘要翻译： 主轴电动机包括定子，该定子包括安装在其上的定子芯的基座部件; 以及转子，其包括转子毂，其中安装面向定子芯的驱动磁体。 转子轮毂包括盘形体，磁体安装部分，其从主体的边缘向下轴向延伸并且具有安装在其内表面上的驱动磁体，以及从磁体安装部分以径向延伸的盘支撑部分 方向。 驱动磁体的磁心比轴向高于定子铁芯的磁心，以便通过与定子芯的相互作用产生沿向下的轴向方向的力。 磁体安装部分包括设置在其下边缘部分上的涡流产生抑制部分，以减小在转子毂旋转期间由空气流产生的噪音和振动。
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