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    • 73. 发明专利
    • Brushless motor
    • 无刷电机
    • JP2011062076A
    • 2011-03-24
    • JP2010216059
    • 2010-09-07
    • Johnson Electric Saジョンソン エレクトリック ソシエテ アノニム
    • LI YONG BINWANG XIN PING
    • H02K1/27
    • H02K1/278H02K7/04H02K7/06
    • PROBLEM TO BE SOLVED: To provide an inexpensive micro-brushless motor with high reliability. SOLUTION: The brushless motor includes a stator and a rotor attached to the stator so as to be rotatable. The rotor includes a shaft, a rotor core fixed to the shaft and a magnet fixed to the rotor core. Two covers are respectively fixed to ends of the rotor core. One of the covers covers one end of the rotor core and at least a part of an outer peripheral surface of the rotor core in the radial direction. The other cover covers at least the other end of the rotor core. Preferably, all peripheral surface of the rotor core is substantially covered with the two covers and an interface between the two covers is sealed by an adhesive agent. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供具有高可靠性的便宜的微型无刷电动机。 解决方案:无刷电动机包括定子和附接到定子的转子以便可旋转。 转子包括轴,固定到轴的转子芯和固定到转子芯的磁体。 两个盖分别固定在转子芯的端部。 其中一个覆盖物覆盖转子芯的一端和转子芯的径向外周面的至少一部分。 另一个盖至少覆盖转子芯的另一端。 优选地,转子芯的所有外围表面基本上被两个盖覆盖,并且两个盖之间的界面被粘合剂密封。 版权所有(C)2011,JPO&INPIT
    • 74. 发明专利
    • Electric actuator
    • 电动执行器
    • JP2010172075A
    • 2010-08-05
    • JP2009010552
    • 2009-01-21
    • Nabtesco Corpナブテスコ株式会社
    • HIRAI MIKIAKISHIRAI YASUYUKINOMURA TSUNETOSHIITO KOJI
    • H02K7/06B64C25/24F16H25/20F16H25/24
    • H02K7/06B64C25/24F16H25/2015F16H25/2454F16H2025/2075H02K7/10Y10T74/18168Y10T74/18656
    • PROBLEM TO BE SOLVED: To provide an electric actuator with a piston rod to be driven by an electric motor through a screw shaft, wherein its structure reduces an external force or impact acting on the screw shaft when the piston rod is at a stretched position. SOLUTION: The electric actuator 1 includes a cylinder body 2, the screw shaft 3 placed in the cylinder body 2 and rotatably driven by an electric motor 23, a nut 5 screwed onto the screw shaft 3, the piston rod 4 that is caused to make linear motion through the nut 5 by the rotation of the screw shaft 3; recesses 6 formed on the outer circumferential surface of the nut 5, keys 7 each provided to a recess 6, holes 8 formed on the outer circumference of the piston portion 4a of the piston rod 4, into which the keys 7 are fit, and a tapered portion 9 formed on an inner wall of the cylinder body 2, into which the keys 7 are fit. When the piston rod 4 is caused to advance, the keys 7 are moved outward and fit into the tapered portion 9 and the backward movement of the piston rod 4 is arrested by the keys 7. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供具有由电动机通过螺杆轴驱动的活塞杆的电致动器,其中当活塞杆处于一个位置时,其结构减小了作用在螺杆轴上的外力或冲击力 拉伸位置 解决方案:电动执行器1包括缸体2,螺杆轴3放置在缸体2中并由电动机23旋转驱动,螺母5螺纹连接到螺杆轴3上,活塞杆4是 通过螺杆轴3的旋转使螺母5线性运动; 形成在螺母5的外周面上的凹部6,各自设置在凹部6上的键7,形成在活塞杆4的活塞部4a的外周上形成有孔7,孔7配合在其中,孔8 形成在缸体2的内壁上的锥形部分9,键7配合到其中。 当活塞杆4前进时,钥匙7向外移动并配合到锥形部分9中,并且活塞杆4的向后运动被钥匙7锁定。(C)2010,JPO&INPIT