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1. 发明申请

US20180234001A1 METHOD OF REDUCING SOUND FROM LIGHT FIXTURE WITH STEPPER MOTORS 审中-公开
公开(公告)号：US20180234001A1
公开(公告)日：2018-08-16
申请号：US15892897
申请日：2018-02-09
申请人： Harman Professional Denmark ApS
发明人： Carsten DALSGAARD
IPC分类号： H02K37/22 , F21S10/00 , F21V21/30 , F21V21/15 , H02K37/24
CPC分类号： H02K37/22 , F21S10/007 , F21S10/02 , F21V14/06 , F21V21/15 , F21V21/30 , F21W2131/406 , F21Y2115/10 , H02K37/24
摘要： A light fixture including a stepper motor comprising a stepper motor stator and a stepper motor rotor. The stepper motor rotor includes a stepper motor axle and is rotatable around a stepper motor axis. The stepper motor is connected to a movable object and is configured to move the movable object in relation to a reference point. A damping mass is attached to the stepper motor axle. The damping mass has a rotational inertia in relation to the stepper motor axis which is at least as large as the rotational inertia of the stepper motor rotor in relation to the stepper motor axis. A method of damping the sound generated by a light fixture comprising a step of attaching a damping mass to a stepper motor axle.

2. 发明申请

US20050264117A1 Stepping motor for use in high-temperature environments 有权
标题翻译：步进电机用于高温环境
公开(公告)号：US20050264117A1
公开(公告)日：2005-12-01
申请号：US11135650
申请日：2005-05-24
申请人： Masato Hata , Yauzuru Suzuki , Atsushi Fukushima , Naoyuki Harada
发明人： Masato Hata , Yauzuru Suzuki , Atsushi Fukushima , Naoyuki Harada
IPC分类号： H02K1/28 , H02K5/167 , H02K37/14 , H02K37/22 , H02K37/00 , H02K7/08
CPC分类号： H02K37/14 , H02K1/28 , H02K5/1672 , H02K37/22
摘要： There is provided a stepping motor comprising: a stator assembly; a rotor assembly rotatably disposed inside the stator assembly, and including a rotary shaft rotatably supported by bearings, a sleeve fixedly attached onto the rotary shaft, and at least one magnet disposed outside the sleeve; and a preloading mechanism disposed between the sleeve and one of the bearings, and including a coil spring, and a spring holder which is composed of an outer case shaped in a cup-like configuration and an inner case shaped in a cup-like configuration, and which is adapted to house the coil spring. In the stepping motor described above, the spring holder of the preloading mechanism is formed of reinforced polyamide resin, and a washer member having a high sliladability is disposed between the preloading mechanism and the one bearing.
摘要翻译：提供了一种步进电机，包括：定子组件; 转子组件，其可旋转地设置在所述定子组件的内部，并且包括由轴承可旋转地支撑的旋转轴，固定地附接到所述旋转轴上的套筒和设置在所述套筒外部的至少一个磁体; 以及设置在套筒和其中一个轴承之间并且包括螺旋弹簧的预加载机构和由杯状构造形状的外壳和形状为杯状构造的内壳构成的弹簧保持器，并且其适于容纳螺旋弹簧。在上述步进电机中，预加载机构的弹簧保持器由增强聚酰胺树脂形成，并且具有高可滑移性的垫圈构件设置在预加载机构和一个轴承之间。

3. 发明授权

US4709199A Velocity feedback control of step motors 失效
标题翻译：步进电机的速度反馈控制
公开(公告)号：US4709199A
公开(公告)日：1987-11-24
申请号：US748645
申请日：1985-06-25
申请人： Xian T. Wang , Rolf Eichenwald
发明人： Xian T. Wang , Rolf Eichenwald
IPC分类号： H02K37/22 , H02P8/14 , H02P8/32 , H02P8/00
CPC分类号： H02P8/14 , H02K37/22 , H02P8/32
摘要： In a control system for a step motor having a rotor and stator, small velocity coils are placed in the stator in quadrature to the main power phase windings. The velocity coils provide velocity feedback signals which are summed with current command signals to gradually damp the step motor. The damped step motor is effective in minimizing its rotor from oscillating about a desired stopping point.
摘要翻译：在具有转子和定子的步进电动机的控制系统中，将小速度线圈放置在与主电力相绕组正交的定子中。速度线圈提供与电流指令信号相加的速度反馈信号，以逐步阻止步进电机。阻尼步进电机有效地使其转子最小化以围绕期望的停止点振荡。

4. 发明授权

US4584495A Performance step motor 失效
标题翻译：性能步进电机
公开(公告)号：US4584495A
公开(公告)日：1986-04-22
申请号：US682659
申请日：1984-12-17
申请人： Kenneth S. Kordik
发明人： Kenneth S. Kordik
IPC分类号： H02K37/18 , H02K37/22 , H02K37/00
CPC分类号： H02K37/22 , H02K37/18
摘要： The invention is an improved performance step motor (10) including a shorted turn mechanism in the nature of a conducting ring (32) or one or more closed loop conductive strands (50) circumferentially disposed about a ring-shaped exposed magnet zone (48) in the rotor assembly (18) of a conventional hybrid synchronous inductor type step motor. The shorted turn device operates to interact with the magnetic fields created in a rotor magnet (40), a first rotor yoke (42) and a second rotor yoke (44) with the induced magnetic field generated in a stator assembly (24) including a plurality of stator pole pieces (62). The insertion of the shorted turn device results in a balancing of the magnetic fields in such a manner that the oscillation time required to bring the motor to stop at a desired position with standard back phase damping techniques or with no additional damping techniques is substantially reduced. The predominant usage of the present invention is in step motors utilized in data processing applications such as daisy wheel printers and disk drive head positioning devices.
摘要翻译：本发明是改进的性能步进电动机（10），其包括导电环（32）性质的短路转动机构或围绕环形暴露磁体区（48）周向设置的一个或多个闭环导电绞线（50）在常规混合同步电动机型步进电动机的转子组件（18）中。短路转向装置与在转子磁体（40），第一转子轭（42）和第二转子轭（44）中产生的磁场相互作用，在定子组件（24）中产生感应磁场，包括多个定子极片（62）。短路转向装置的插入导致磁场的平衡，使得以标准的背相阻尼技术或无附加阻尼技术使电动机停在所需位置所需的振荡时间大大降低。本发明的主要用途是用于诸如菊花轮打印机和盘驱动头定位装置的数据处理应用中的步进马达。

5. 发明授权

US4427909A Placing stand driving device having flywheel effect in only one direction 失效
标题翻译：仅在一个方向上放置具有飞轮效应的支架驱动装置
公开(公告)号：US4427909A
公开(公告)日：1984-01-24
申请号：US361027
申请日：1982-03-23
申请人： Toshikatsu Takahashi
发明人： Toshikatsu Takahashi
IPC分类号： G03B27/50 , G03G15/00 , G03G15/04 , H02K37/22 , H02K7/02 , G03G15/28
CPC分类号： G03G15/605 , H02K37/22
摘要： A placing stand for use with a microfilm copying device or the like is driven by means of a step motor connected to the stand by wires or the like. A flywheel is coupled to the shaft of the step motor via a one way clutch so as to damp vibrations of the step motor, while allowing the stand to be quickly returned; the flywheel is not a load on the motor in the return direction.
摘要翻译：用微缩胶片复印装置等使用的放置台借助于通过电线等连接到支架的步进电机驱动。飞轮通过单向离合器联接到步进马达的轴，以便阻止步进马达的振动，同时允许支架快速返回; 飞轮不是电机沿返回方向的负载。

6. 发明授权

US3790831A Apparatus for damping oscillations in a stepping motor 失效
标题翻译：用于在步进电机中阻尼振荡的装置
公开(公告)号：US3790831A
公开(公告)日：1974-02-05
申请号：US3790831D
申请日：1972-06-09
申请人： COMPUTER DEVICES
发明人： MORREALE A
IPC分类号： H02K37/22 , H02K7/02
CPC分类号： H02K37/22
摘要： A stepping motor damping unit in which the freely rotating flywheel is journaled on the shaft of a stepping motor. The flywheel is provided with a permanent magnet. A plate of magnetic material is secured to the shaft of the motor and the magnet of the flywheel attracts it to the plate. A disk of friction material is positioned between adjacent parallel surfaces of the flywheel and the plate to provide a non-magnetic gap and at the same time provide wear-resistant low friction surfaces allowing for relative rotation between the plate and the flywheel.
摘要翻译：一个步进马达阻尼单元，其中自由旋转的飞轮轴承在步进马达的轴上。飞轮设有永久磁铁。一块磁性材料固定在马达的轴上，飞轮的磁铁吸引到板上。摩擦材料盘位于飞轮和板之间的相邻平行表面之间，以提供非磁隙，同时提供耐磨低摩擦表面，允许板和飞轮之间的相对转动。

7. 发明授权

US3757147A Stepping motor 失效
标题翻译：步进电机
公开(公告)号：US3757147A
公开(公告)日：1973-09-04
申请号：US3757147D
申请日：1971-05-18
申请人： CAMBRIDGE THERMIONIC CORP
发明人： LYMAN F
IPC分类号： H02K37/08 , H02K37/22 , H02K37/00
CPC分类号： H02K37/22 , H02K37/08
摘要： A multiphase rotary stepping motor of the type having a shaft with the rotors distributed axially thereon, and a housing carrying the axially distributed stators, the rotors and stators having their respective pole-forming elements separated by axial air gaps. The shaft is mounted for rotation in the housing by a bearing arrangement which includes an axially fixed bearing, such as a duplex bearing, located at one end of the motor to restrict axial motion of the shaft, and an axially floating bearing located at the other end of the motor and freely allowing the shaft to move axially as a result of thermal expansion and contraction. Mounted on the free end of the shaft are inertial damping means in the form of an annular mass concentric with the shaft, with a spring and disks of low friction material, such as Teflon, linking the shaft and annular mass in a predetermined pressure and friction relationship.

8. 发明申请

US20170149322A1 REDUCED-VIBRATION STEPPER MOTOR 有权
公开(公告)号：US20170149322A1
公开(公告)日：2017-05-25
申请号：US14950269
申请日：2015-11-24
申请人： Lin Engineering
发明人： Ted T. Lin , Harlan H. Nguyen
IPC分类号： H02K37/22
CPC分类号： H02K37/22
摘要： A stepper motor has a stator winding assembly with a permanent ring magnet located radially outside of electromagnetic windings for the stator poles. The permanent ring magnet remotely magnetizes a rotor seated by bearings on an axial shaft so as to rotate within the stator winding assembly, thereby freeing up space within the rotor for an internal damper. The rotor has a cylindrical damping weight enclosed within, but not fixed to, the rotor. The weight ideally has a rotational moment of inertia that substantially matches that of the rotor. The weight is elastically coupled to the rotor by a viscous material contained in the rotor and filling the space between the weight and the rotor and between the weight and the axial shaft. The viscosity of this material is selected such that motion of the weight is delayed, preferably so as to be substantially 180° out-of-phase with, but at the same frequency as, the stepping rotation of the rotor. The weight thereby serves as a counterweight to the rotor so as to cancel vibrations generated by stepping of the rotor.

9. 发明授权

US06536567B2 Inertia damper and method for manufacturing same 失效
标题翻译：惯性阻尼器及其制造方法
公开(公告)号：US06536567B2
公开(公告)日：2003-03-25
申请号：US09816153
申请日：2001-03-26
申请人： Motoyasu Nakanishi
发明人： Motoyasu Nakanishi
IPC分类号： F16F710
CPC分类号： H02K37/22 , F16F15/173
摘要： An inertia damper is capable of exhibiting satisfactory endurance. In the inertia damper, when an inertia weight element directly carrying out a damping action and a gel element are combined together, the gel element is interposedly arranged between the outer periphery of the inertia weight element and the inner surface of a peripheral cover section of a holding member of a mount base. This permits the area of arrangement of the gel element to be increased to significantly reduce loading per unit area of the gel element, thereby improving the endurance.
摘要翻译：惯性阻尼器能够表现出令人满意的耐久性。在惯性阻尼器中，当将直接执行阻尼作用的惯性重量元件和凝胶元件组合在一起时，凝胶元件插入在惯性重量元件的外周和外周盖部分的内表面之间持有基地的成员。这允许增加凝胶元件的布置面积以显着减少凝胶元件的每单位面积的负荷，从而提高耐久性。

10. 发明授权

US5046154A Encapsulated armature and shaft assembly 失效
标题翻译：密封电枢和轴组件
公开(公告)号：US5046154A
公开(公告)日：1991-09-03
申请号：US594470
申请日：1990-10-09
申请人： Daniel C. MacManus
发明人： Daniel C. MacManus
IPC分类号： H02K1/27 , H02K5/124 , H02K37/22
CPC分类号： H02K1/2733 , H02K1/2726 , H02K37/22 , H02K5/124 , Y10T29/49075
摘要： An armature and shaft assembly useful in gauges and stepper motors is encapsulated for ease in manufacture and diversity of application, the capsule being suitable for sealing in dampening fluids and for allowing magnetization of the armature after assembly of the capsule, providing protection against contamination by dust, etc.

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