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公开(公告)号：US20190248406A1
公开(公告)日：2019-08-15
申请号：US16342402
申请日：2017-10-19
Applicant: NSK LTD.
Inventor： Noboru KANEKO , Masakazu MORIMOTO , Makoto HAGIWARA , Ryoichi SUZUKI
IPC: B62D5/04 , H02K11/33 , H02K11/215 , G01B7/30
CPC classification number: B62D5/0406 , B62D5/0481 , G01B7/30 , H02K5/10 , H02K5/15 , H02K5/1732 , H02K5/225 , H02K11/215 , H02K11/33 , H02K29/08 , H02K29/14 , H02K2213/03
Abstract: An assembly structure of a sensor includes: a shaft; a housing including: a first cylindrical part; and a first annular plate that is an annular plate, an outer periphery of which is connected to an end of the first cylindrical part, and that is orthogonal to a rotation axis of the shaft; a magnet accommodated inside the first cylindrical part in a radial direction and fixed to an end of the shaft; a sensor configured to detect rotation of the magnet; and a holder that is fixed to the first annular plate and that holds the sensor such that the sensor is disposed at a predetermined position with respect to the magnet.
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公开(公告)号：US20120007531A1
公开(公告)日：2012-01-12
申请号：US13233593
申请日：2011-09-15
Applicant: Ravishanker Krishnamoorthy , Foo Leng Leong , Edy Susanto , Yayue Zhang , Cheng Yong Teoh
Inventor： Ravishanker Krishnamoorthy , Foo Leng Leong , Edy Susanto , Yayue Zhang , Cheng Yong Teoh
CPC classification number: F04D27/004 , F04D13/0693 , F04D15/0094 , F04D25/0693 , F04D27/001 , H02K29/12 , H02K29/14 , H02P6/08 , H02P6/182 , H02P29/032
Abstract: A fan system includes a motor control module external to a motor housing of a fan assembly. The motor control module includes a speed control module. The fan assembly includes a fan and the motor housing. One or more first conductors are configured to connect the motor control module to a motor in the motor housing. One or more second conductors are configured to connect the motor control module to a host device control module. The host device control module is separate from the motor control module and is configured to generate a control signal. The speed control module is configured to control speed of the fan based on the control signal.
Abstract translation: 风扇系统包括在风扇组件的电动机壳体外部的电动机控制模块。 电动机控制模块包括速度控制模块。 风扇组件包括风扇和电动机壳体。 一个或多个第一导体被配置为将电动机控制模块连接到电动机壳体中的电动机。 一个或多个第二导体被配置为将电动机控制模块连接到主机设备控制模块。 主机设备控制模块与电机控制模块分离，并被配置为产生控制信号。 速度控制模块被配置为基于控制信号来控制风扇的速度。
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3.发明授权Motor resolver assembly and method of measuring speed and position of a motor rotor 有权电机旋转变压器组件及电机转子速度和位置测量方法公开(公告)号：US07268451B2
公开(公告)日：2007-09-11
申请号：US11060226
申请日：2005-02-17
Applicant: Erik M. Hertz , Christopher J. Bowes , Alan G. Holmes , James A. Raszkowski
Inventor： Erik M. Hertz , Christopher J. Bowes , Alan G. Holmes , James A. Raszkowski
Abstract: A motor resolver assembly includes a resolver stator and a resolver rotor positioned radially inward of and rotatable with respect to the resolver stator. First and second relatively rotatable shield components generally surround the resolver stator and rotor to shield them from electromagnetic energy from a radially outward motor rotor and motor stator. A method of measuring speed and position of the motor rotor relative to the motor stator is also employed.
Abstract translation: 电动机解算器组件包括旋转变压器定子和旋转变压器转子，其相对于旋转变压器定子径向向内定位并且可旋转。 第一和第二相对可旋转的屏蔽部件通常围绕分解器定子和转子，以防止来自径向向外的电动机转子和电动机定子的电磁能。 还采用了测量电动机转子相对于电动机定子的速度和位置的方法。
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公开(公告)号：US07054783B2
公开(公告)日：2006-05-30
申请号：US10488922
申请日：2002-09-17
Applicant: Mimpei Morishita
Inventor： Mimpei Morishita
IPC: G01P3/00
CPC classification number: G01P3/48 , B66B1/3492 , G01P3/489 , H02K11/21 , H02K11/22 , H02K11/225 , H02K11/33 , H02K29/03 , H02K29/06 , H02K29/14 , H02P6/10
Abstract: The rotary detector according to this invention comprises a rotary detector unit C1, C1′ which detects rotary motion of a rotor; and a rotary calculator unit C2, C2′, C2″ comprising a rotation angle detector, which detects the rotation angle of the rotor, and an angle speed detector 47 which detects the angle speed of the rotor, based on the output of the rotary detector unit. The rotary calculator unit comprises a trigonometrical calculator C3, C3′, C3″ which calculates a sine value or a cosine value of the rotation angle detected by the rotary detector; a gain adjuster 57, 57′, 57″ which multiplies the sine value or the cosine value, calculated by the trigonometrical calculator, by a predetermined gain; a multiplier 59, 59′ which multiplies the output of the gain adjuster by the output of the angle speed detector; and a subtracter 61, 61′ which subtracts the output of the multiplier from the output of the angle speed detector.
Abstract translation: 根据本发明的旋转检测器包括检测转子的旋转运动的旋转检测器单元C 1，C 1' 以及旋转计算器单元C 2，C 2'，C 2“，其包括检测转子的旋转角度的旋转角度检测器，以及基于输出检测转子的角速度的角速度检测器47 的旋转检测器单元。 旋转计算器单元包括三角计算器C 3，C 3'，C 3“，其计算由旋转检测器检测的旋转角度的正弦值或余弦值; 增益调节器57,57'，57“将由三角计算器计算的正弦值或余弦值乘以预定增益; 乘法器59,59'，其将增益调节器的输出乘以角速度检测器的输出; 以及从角速度检测器的输出中减去乘法器的输出的减法器61,61'。
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公开(公告)号：US20060006747A1
公开(公告)日：2006-01-12
申请号：US11154588
申请日：2005-06-17
Applicant: Koji Kadowaki
Inventor： Koji Kadowaki
CPC classification number: H02K29/14
Abstract: A drive/control circuit integrated brushless motor is provided that has high rotating precision, satisfactory noise resistance and high output, and is suited to be smaller to save as much space as possible. The motor is a brushless motor provided with circuit integrated core with an FG pattern formed uniformly along the entire circumference by including a pattern system FG, and arranging a Hall element on a surface of a circuit substrate opposite the surface formed with the FG pattern and a noise cancel pattern.
Abstract translation: 提供了具有高旋转精度，令人满意的耐噪声性和高输出性的驱动/控制电路集成无刷电动机，并且适合于更小以节省尽可能多的空间。 电动机是具有电路集成芯的无电刷电动机，其FG模式沿着整个圆周均匀地形成，包括图案系统FG，并且将霍尔元件布置在电路基板的与FG图案形成的表面相对的表面上，并且 噪音消除模式。
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Patent Agency Ranking
6.发明申请Motor resolver assembly and method of measuring speed and position of a motor rotor 有权电机旋转变压器组件及电机转子速度和位置测量方法公开(公告)号：US20050206253A1
公开(公告)日：2005-09-22
申请号：US11060226
申请日：2005-02-17
Applicant: Erik Hertz , Christopher Bowes , Alan Holmes , James Raszkowski
Inventor： Erik Hertz , Christopher Bowes , Alan Holmes , James Raszkowski
Abstract: A motor resolver assembly includes a resolver stator and a resolver rotor positioned radially inward of and rotatable with respect to the resolver stator. First and second relatively rotatable shield components generally surround the resolver stator and rotor to shield them from electromagnetic energy from a radially outward motor rotor and motor stator. A method of measuring speed and position of the motor rotor relative to the motor stator is also employed.
Abstract translation: 电动机解算器组件包括旋转变压器定子和旋转变压器转子，其相对于旋转变压器定子径向向内定位并且可旋转。 第一和第二相对可旋转的屏蔽部件通常围绕分解器定子和转子，以防止来自径向向外的电动机转子和电动机定子的电磁能。 还采用了测量电动机转子相对于电动机定子的速度和位置的方法。
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公开(公告)号：US20020153786A1
公开(公告)日：2002-10-24
申请号：US10085621
申请日：2002-03-01
Applicant: VICTOR COMPANY OF JAPAN, LIMITED
Inventor： Hiroshi Iwai , Takeshi Suzuki
IPC: H02K011/00
CPC classification number: H02K29/14 , Y10S310/03
Abstract: A motor apparatus having a rotor placed rotatably on a stator base, and providing a FG signal for controlling the rotation of the rotor. The motor apparatus further includes driving magnet for having a plurality of magnetic poles placed on the outer circumference of the rotor and having a magnetic flux density pattern magnetized either third or fifth harmonic component, and FG coil provided on the circumference of the rotor in the position opposing to the magnetic pole for driving magnet, for supplying the FG signal by occurrence of an electric signal for magnetomotive force in the magnetic field. The driving magnet of the motor apparatus is having a magnetic flux density which reaches to the FG coil within the range of 0.2 to 0.6 T (Tesla) so that inequable rotation of the motor can be suppressed.
Abstract translation: 一种电动机装置，其具有可旋转地设置在定子基座上的转子，并且提供用于控制转子旋转的FG信号。 电动机装置还包括驱动磁体，其具有设置在转子的外周上的多个磁极，并且具有磁化为第三或第五谐波分量的磁通密度图案，以及设置在转子的圆周上的FG线圈处于位置 与用于驱动磁体的磁极相对，用于通过在磁场中产生用于磁动势的电信号来供给FG信号。 电动机装置的驱动磁体具有在0.2〜0.6T（特斯拉）范围内到达FG线圈的磁通密度，从而可以抑制电机的不均匀旋转。
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公开(公告)号：US20020047346A1
公开(公告)日：2002-04-25
申请号：US09793381
申请日：2001-02-26
Inventor： Fred N. Miekka , Peter W. Mackie
IPC: H02K011/00
CPC classification number: B60L11/1807 , B60L2220/18 , H02K1/08 , H02K1/2793 , H02K3/18 , H02K3/20 , H02K3/28 , H02K7/10 , H02K7/116 , H02K7/14 , H02K9/06 , H02K19/103 , H02K21/02 , H02K21/14 , H02K21/24 , H02K23/36 , H02K23/66 , H02K29/08 , H02K29/10 , H02K29/14 , H02K2201/12 , Y02T10/641 , Y02T10/646 , Y02T10/7005
Abstract: A method of increasing the power output of existing permanent magnet motors along with apparatus is disclosed. Increased power output is achieved by more completely utilizing the magnetic field of motor permanent magnets during running. The apparatus is external to the motor and therefore eliminates the need for modifications to the motor itself. The method involves providing a source of power to a permanent magnet motor which is capable of demagnetizing the motor permanent magnets at stall, and reducing the power at start up to a level sufficient to prevent demagnetization. Full power to the motor is provided when the motor speed reaches a level sufficient to prevent demagnetization of the permanent magnets.
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公开(公告)号：US6037692A
公开(公告)日：2000-03-14
申请号：US88096
申请日：1998-06-01
Applicant: Fred N. Miekka , Peter W. Mackie
Inventor： Fred N. Miekka , Peter W. Mackie
IPC: B60L11/18 , H02K1/08 , H02K1/27 , H02K3/18 , H02K3/20 , H02K3/28 , H02K7/10 , H02K7/116 , H02K7/14 , H02K9/06 , H02K19/10 , H02K21/02 , H02K21/14 , H02K21/24 , H02K23/36 , H02K23/66 , H02K29/08 , H02K29/10 , H02K29/14 , H02K1/00
CPC classification number: H02K19/103 , B60L11/1807 , H02K1/08 , H02K1/2793 , H02K21/02 , H02K21/14 , H02K21/24 , H02K23/36 , H02K23/66 , H02K29/08 , H02K29/10 , H02K29/14 , H02K3/18 , H02K3/20 , H02K3/28 , H02K7/10 , H02K7/116 , H02K7/14 , H02K9/06 , B60L2220/18 , H02K2201/12 , Y02T10/641 , Y02T10/7005
Abstract: A high power low RPM direct current electric motor is disclosed whereby the high power output is achieved in one of two ways or both. In the first case, the need for cooling is reduced simultaneously along with an increase in the utilization of the magnetic field present in the motor permanent magnets. This is achieved by wrapping the electromagnet core with windings that are capable of demagnetizing the rotor permanent magnets under stall conditions. Interlocking motor circuitry is provided which prevents the full activation of these motor windings until motor RPM values reach a safe level. This increases motor power while decreasing resistive losses in electromagnet windings. In the second case, the rotary portion consists of a large diameter relatively flat rotor containing permanent magnets and having built in vanes for moving air over the electromagnet stator windings providing forced air cooling.
Abstract translation: 公开了一种大功率低RPM直流电动机，由此通过两种方式之一或两者实现高功率输出。 在第一种情况下，随着电动机永磁体中存在的磁场的利用率的增加，同时降低了对冷却的需要。 这是通过用能够在失速条件下使转子永磁体消磁的绕组来缠绕电磁铁芯来实现的。 提供联锁电动机电路，防止这些电动机绕组的完全启动，直到电机RPM值达到安全水平。 这增加了电动机功率，同时减少了电磁铁绕组中的电阻损耗。 在第二种情况下，旋转部分由包含永磁体的大直径相对平坦的转子组成，并且具有用于在提供强制空气冷却的电磁体定子绕组上移动空气的内置叶片。
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公开(公告)号：US5847483A
公开(公告)日：1998-12-08
申请号：US861066
申请日：1997-05-21
Applicant: Yuzuru Suzuki , Sakae Fujitani , Kenichi Makino
Inventor： Yuzuru Suzuki , Sakae Fujitani , Kenichi Makino
Abstract: An index signal is used for assuring media for use in a floppy disk drive to be exchangeable with each other. While the signal is output once for each rotation of a spindle motor, since the signal generation is carried out in a non-contact manner with rotating members including the medium, a hole sensor or the like has been previously used. However, such a hole sensor is expensive and fragile under temperature and mechanical stress. A pulse generator has been proposed, in which the rotor magnet is provided with magnets having unequally allocated angles and disposed all along a circumference and a stator coil and is disposed so as to match with the rotor magnet to have a pulse generated once for each rotation. However, the generated signal has, been poor in its S/N characteristic. It is an object of the invention to overcome the difficulties and provide a pulse generator that is highly reliable and excellent in the S/N characteristic with the manner of allocation of angles for the rotor magnet improved. A rotor assembly having a permanent magnet with a plurality, i.e., M pieces, of magnetic poles of opposite polarities to each other alternately disposed in a circumferential direction and a stator assembly having a plurality of stator coils disposed in confronting and coaxial relationship with rotor assembly, at least one set of the magnetic poles are set to have equally allocated angles from the center of the shaft. The remaining magnetic poles are set to have unequally allocated angles. The stator coils electromagnetically match the rotor assembly only once for each rotation thereof and a very large pulse is generated. In addition, a waveform with a satisfactory S/N characteristic can be obtained.
Abstract translation: 索引信号用于确保在软盘驱动器中使用的介质可以彼此更换。 当主轴电动机的每次旋转输出一次信号时，由于信号产生以包括介质在内的旋转部件非接触的方式进行，所以已经预先使用了孔传感器等。 然而，这种孔传感器在温度和机械应力下是昂贵且脆弱的。 已经提出了一种脉冲发生器，其中转子磁体设置有具有不均等分配角度并且沿着圆周设置的磁体和定子线圈，并且被设置成与转子磁体匹配以具有每次旋转一次的脉冲 。 然而，所产生的信号的S / N特性差。 本发明的一个目的是克服困难，提供一种高可靠性和优异的S / N特性的脉冲发生器，改善转子磁体角度分配方式。 一种转子组件，其具有永磁体，该永磁体具有多个相互极性相反极性的M个磁极，它们在圆周方向上交替设置;以及定子组件，该定子组件具有多个与转子组件相对和共轴的定子线圈 至少一组磁极被设置成具有从轴的中心相等的角度。 剩下的磁极被设定为具有不相等的角度。 定子线圈与转子组件电磁匹配，每转动一次，产生非常大的脉冲。 此外，可以获得具有令人满意的S / N特性的波形。
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