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1. 发明申请

US20090189552A1 MOTOR DRIVE UNIT AND OPTICAL APPARATUS 有权
标题翻译：电机驱动单元和光学设备
公开(公告)号：US20090189552A1
公开(公告)日：2009-07-30
申请号：US12360448
申请日：2009-01-27
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： H02P6/08
CPC分类号： H02P6/08
摘要： A motor drive unit includes a controller configured to drive a motor to a target position by using a first driving mode in which a state of energization of coils of the motor is switched in accordance with outputs from rotor position detectors and a second driving mode in which a state of energization of the coils is switched on the basis of a predetermined time interval. The controller turns on the energization of the coils during a predetermined time under an energization condition at a completion of driving to the target position when the rotor position detectors detect that the rotor position shifts from the target position after turning off the energization of the coils according to the completion of driving to the target position.
摘要翻译：电机驱动单元包括：控制器，被配置为通过使用第一驱动模式将电动机驱动到目标位置，其中根据来自转子位置检测器的输出切换电动机的线圈的通电状态，以及第二驱动模式，其中基于预定时间间隔切换线圈通电状态。当转子位置检测器检测到转子位置在关闭线圈通电之后从目标位置偏移时，在完成驱动到目标位置的通电条件下的预定时间期间，控制器接通线圈通电，完成驾驶到目标位置。

2. 发明授权

US06710563B2 Driving device, light amount controller and shutter 失效
标题翻译：驱动装置，光量控制器和快门
公开(公告)号：US06710563B2
公开(公告)日：2004-03-23
申请号：US10093453
申请日：2002-03-11
申请人： Masao Mizumaki , Chikara Aoshima
发明人： Masao Mizumaki , Chikara Aoshima
IPC分类号： H02K2316
CPC分类号： G03B9/08
摘要： There is provided a small-sized and slim driving device which is easy to manufacture and capable of producing high output. A magnet has a cylindrical shape, and at least the outer peripheral surface of the magnet is circumferentially divided into n sections magnetized so as to have alternately different poles. The magnet can rotate about a rotational axis of the cylindrical shape. A coil is arranged axially of the magnet and parallel thereto. An outer magnetic pole portion is disposed to be magnetized by the coil, and has a plurality of hair comb tooth-shaped portions opposed to the magnet and arranged around the magnet such that an angle corresponding to the circumferential width of each of the hair comb tooth-shaped portions opposed to the magnet about the rotational axis of the hollow cylindrical shape of the magnet is equal to a predetermined angle A. An inner magnetic pole portion is disposed to be magnetized by the coil, and has a hollow cylindrical shape opposed to the inner peripheral surface of the magnet. The predetermined angle A is set to such a value that a rotational force acts on the magnet to return to a position in which a circumferential center of each of n magnetized sections on the outer peripheral surface of the magnet is opposed to a circumferential center of a corresponding one of the hair comb tooth-shaped portions of the outer magnetic pole portion, when the circumferential center of each of n magnetized sections shifts from the position.
摘要翻译：提供了一种容易制造且能够产生高输出的小型和细长的驱动装置。磁体具有圆筒形状，并且至少磁体的外周面被圆周地分成n个被磁化的部分，以便具有交替不同的极点。磁体可以围绕圆柱形的旋转轴线旋转。线圈被布置在磁体的轴向并与之平行。外部磁极部被配置为被线圈磁化，并且具有与磁体相对的多个发梳齿形部分，并且围绕磁体布置，使得与每个发梳齿的周向宽度相对应的角度围绕磁体的中空圆筒形状的旋转轴线相对于磁体的形状部分等于预定角度A.内部磁极部分设置成被线圈磁化，并且具有与该磁体相对的中空圆柱形状磁铁的内周面。预定角度A被设定为使得旋转力作用在磁体上的值返回到磁体外周面上的n个磁化部分的每个的周向中心与圆周的中心相对的位置当n个磁化部分的每个的圆周中心从该位置移位时，外部磁极部分的发梳齿形部分中的相应的一个。

3. 发明授权

US07304408B2 Driving apparatus and light amount adjustment apparatus 失效
标题翻译：驱动装置和光量调节装置
公开(公告)号：US07304408B2
公开(公告)日：2007-12-04
申请号：US11167183
申请日：2005-06-28
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： H02K21/12 , H02K21/16 , H02K33/16 , G03B9/02
CPC分类号： H02K26/00
摘要： A driving apparatus includes a magnet that is magnetized to at least two poles in a circumferential direction and fixed to a rotor axis formed with a soft magnetic material, and first and second coils arranged in the same direction as the magnet with respect to the magnet-axis direction and arranged adjacent to an end surface of the magnet in the magnet-axis direction. The first magnetic pole portion is excited by energizing the first coil, and the second magnetic pole portion is excited to a pole opposite to the first magnetic pole portion by energizing the second coil. A yoke portion is formed with a soft magnetic material for supporting the first and second magnetic pole portions. The first magnetic pole portion includes a first coil insertion portion that is inserted to an internal diameter portion of the first coil, and a first magnet facing portion that is arranged to face a magnetized outer circumferential portion of the magnet with a predetermined gap at a predetermined angle. The second magnetic pole portion includes a second coil insertion portion that is inserted to an internal diameter portion of the second coil, and a second magnet facing portion that is arranged to face a magnetized outer circumferential portion of the magnet with a predetermined gap at a predetermined angle.
摘要翻译：驱动装置包括：磁体，该磁体被磁化成圆周方向上的至少两个极，并且固定到由软磁性材料形成的转子轴;以及第一和第二线圈，其相对于磁铁相对于与磁体相同的方向排列，并且与磁体的磁体轴线方向的端面相邻配置。通过激励第一线圈来激励第一磁极部分，并且通过激励第二线圈将第二磁极部分激励到与第一磁极部分相对的极。轭部形成有用于支撑第一和第二磁极部分的软磁性材料。第一磁极部包括插入到第一线圈的内径部的第一线圈插入部以及以预定的间隔以规定的间隔面对磁铁的磁化的外周部的第一磁铁对置部，角度。第二磁极部分包括插入到第二线圈的内径部分的第二线圈插入部分和第二磁体对置部分，其以预定的间隔以预定的间隙面对磁体的磁化的外圆周部分角度。

4. 发明申请

US20060284496A1 Driving apparatus 有权
标题翻译：驱动装置
公开(公告)号：US20060284496A1
公开(公告)日：2006-12-21
申请号：US11455481
申请日：2006-06-19
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： H02K37/14 , H02K7/06 , G11B5/55
CPC分类号： H02K7/116 , F16H25/2409 , H02K37/14
摘要： A driving apparatus includes a stepping motor having a lead screw, a rack, and a rack-retaining bar, a barrel, a barrel-retaining bar, and a connecting spring for connecting the rack to the barrel. The connecting spring includes an engaging portion that engages with a spherical output member of the rack. The stepping motor in which the lead screw and the rack are integrated with each other and the barrel are connected to each other with provides a structure that absorbs relative positioning error and backlash.
摘要翻译：驱动装置包括步进马达，该步进马达具有导螺杆，齿条和齿条保持杆，筒体，筒保持杆和用于将齿条连接到筒体的连接弹簧。连接弹簧包括与齿条的球形输出构件接合的接合部。引导螺钉和齿条彼此结合的机架和机筒相互连接的步进电机，提供吸收相对定位误差和齿隙的结构。

5. 发明申请

US20060232144A1 Driving device 有权
标题翻译：驱动装置
公开(公告)号：US20060232144A1
公开(公告)日：2006-10-19
申请号：US11404625
申请日：2006-04-14
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： H02K37/14 , H02K37/12
CPC分类号： H02K37/16
摘要： A low-cost and high-output driving device compact in size and reduced in axial length. In a stepping motor as the driving device, a stator has a plate part, and first and second outer magnetic pole parts axially extend from the plate part. A rotor formed by a rotary shaft and a core each formed of a soft magnetic material is disposed between said first and second outer magnetic pole parts. The rotor has one axial end thereof rotatably supported in the plate part. A magnet is rigidly fitted on an outer periphery of the rotor and magnetized such that different poles circumferentially alternate. A top plate is rigidly secured to the respective foremost ends of the pole parts and rotatably support the other axial end of the rotor. The pole parts are engaged in a bobbin having a cover part covering the outer peripheral surface of the magnet. First and second coils are wound around the first and second outer magnetic pole parts via the bobbin axially between the magnet and the plate part.
摘要翻译：低成本，高输出的驱动装置尺寸紧凑，轴向长度减小。在作为驱动装置的步进电机中，定子具有板部，第一和第二外部磁极部从板部轴向延伸。由所述第一和第二外部磁极部分之间设置由旋转轴和由软磁性材料形成的芯构成的转子。转子具有可旋转地支撑在板部分中的一个轴向端。磁体刚性地装配在转子的外周上并被磁化，使得不同的磁极周向交替。顶板刚性地固定到磁极部分的相应的最前端，并可旋转地支撑转子的另一个轴向端。极部件接合在具有覆盖磁体的外周面的盖部的线轴上。第一和第二线圈经由线轴在磁体和板部之间轴向缠绕在第一和第二外部磁极部分上。

6. 发明申请

US20060006968A1 Driving apparatus and light amount adjustment apparatus 失效
标题翻译：驱动装置和光量调节装置
公开(公告)号：US20060006968A1
公开(公告)日：2006-01-12
申请号：US11167183
申请日：2005-06-28
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： H02K1/12 , H01F7/08
CPC分类号： H02K26/00
摘要： The invention provides a driving apparatus comprising: a magnet that is magnetized to at least two poles in a circumferential direction and fixed to a rotor axis formed with a soft magnetic material; first and second coils arranged in the same direction as the magnet with respect to the magnet-axis direction and arranged adjacent to an end surface of the magnet in the magnet-axis direction; the first magnetic pole portion excited by energizing the first coil; the second magnetic pole portion excited to a pole opposite to the first magnetic pole portion by energizing the second coil; and a yoke portion formed with a soft magnetic material for supporting the first and second magnetic pole portions. The first magnetic pole portion includes a first coil insertion portion that is inserted to an internal diameter portion of the first coil, and a first magnet facing portion that is arranged to face a magnetized outer circumferential portion of the magnet with a predetermined gap at a predetermined angle. The second magnetic pole portion includes a second coil insertion portion that is inserted to an internal diameter portion of the second coil, and a second magnet facing portion that is arranged to face a magnetized outer circumferential portion of the magnet with a predetermined gap at a predetermined angle.
摘要翻译：本发明提供一种驱动装置，其特征在于，包括：磁体，其被磁化成圆周方向的至少两个极，并固定在由软磁材料形成的转子轴上; 第一和第二线圈，其相对于磁体轴线方向排列成与磁体相同的方向，并且与磁体的磁体轴线方向的端面相邻地配置; 通过激励第一线圈而激励的第一磁极部分; 所述第二磁极部通过使所述第二线圈通电而激励到与所述第一磁极部相反的极; 以及形成有用于支撑第一和第二磁极部分的软磁性材料的磁轭部分。第一磁极部包括插入到第一线圈的内径部的第一线圈插入部以及以预定的间隔以规定的间隔面对磁铁的磁化的外周部的第一磁铁对置部，角度。第二磁极部分包括插入到第二线圈的内径部分的第二线圈插入部分和第二磁体对置部分，其以预定的间隔以预定的间隙面对磁体的磁化的外圆周部分角度。

7. 发明申请

US20050218743A1 Motor and optical apparatus 有权
标题翻译：电机和光学仪器
公开(公告)号：US20050218743A1
公开(公告)日：2005-10-06
申请号：US11077034
申请日：2005-03-11
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： G02B7/08 , G02B7/02 , G02B7/04 , G03B9/02 , H02K1/00 , H02K1/14 , H02K7/08 , H02K7/14 , H02K37/00 , H02K37/14
CPC分类号： H02K37/14 , G02B7/02 , H02K1/145 , H02K7/083 , H02K7/14
摘要： Provided are a motor and an optical apparatus each including: a rotatable rotor having a cylindrical magnet; a first coil; a first outer magnetic pole portion which is disposed at a center portion of the first coil and which is opposed to an outer circumferential surface of the magnet within a first predetermined angle range; a second outer magnetic pole portion which is adjacent to an outer circumference of the first coil and which is opposed to the outer circumferential surface of the magnet; a first inner magnetic pole portion which is adjacent to the outer circumference of the first coil and which is opposed to an inner circumferential surface of the magnet; a second coil; a third outer magnetic pole portion which is disposed at a center portion of the second coil and which is opposed to the outer circumferential surface of the magnet within a second predetermined angle range; a fourth outer magnetic pole portion which is adjacent to an outer circumference of the second coil and which is opposed to the outer circumferential surface of the magnet; and a second inner magnetic pole portion which is adjacent to the outer circumference of the second coil and which is opposed to the inner circumferential surface of the magnet. Accordingly, there are provided a motor and an optical apparatus which realize higher output without impairing miniaturization.
摘要翻译：提供一种电动机和光学装置，每个包括：具有圆柱形磁体的可旋转转子; 第一线圈; 第一外部磁极部，其设置在所述第一线圈的中心部分，并且在所述第一预定角度范围内与所述磁铁的外周面相对; 与所述第一线圈的外周相邻并且与所述磁体的外周面相对的第二外磁极部; 与所述第一线圈的外周相邻并且与所述磁体的内周面相对的第一内磁极部; 第二线圈第三外部磁极部，其设置在所述第二线圈的中心部并且在所述第二预定角度范围内与所述磁体的外周面相对; 与所述第二线圈的外周相邻并且与所述磁体的外周面相对的第四外磁极部; 以及与所述第二线圈的外周相邻并且与所述磁体的内周面相对的第二内磁极部。因此，提供一种在不损害小型化的情况下实现更高输出的电动机和光学装置。

8. 发明授权

US09136750B2 Motor capable of adjusting phase difference between output signals 有权
标题翻译：电机能够调节输出信号之间的相位差
公开(公告)号：US09136750B2
公开(公告)日：2015-09-15
申请号：US13364421
申请日：2012-02-02
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： H02K11/00 , H02K37/14
CPC分类号： H02K37/14 , H02K11/215
摘要： A motor capable of performing mechanical position adjustment of a magnetic detection unit to thereby adjust a phase difference between signals output from respective two magnetosensitive pole pieces. A rotor includes a magnet having an axial end surface magnetized to have circumferentially alternately different poles. A stator has two outer magnetic pole portions opposed to an outer peripheral surface of the magnet. Two coils are energized to excite the outer magnetic pole portions. A magnetic sensor is opposed to an axial end surface of the magnet. The magnetosensitive pole pieces of the magnetic sensor detect a magnetic field change caused by rotation of the magnet. The magnetosensitive pole pieces are arranged side by side in a direction orthogonal to a diametrical direction of the magnet. The position of the magnetic sensor can be adjusted in the diametrical direction of the magnet.
摘要翻译：一种能够进行磁检测单元的机械位置调整从而调整从两个感磁极片输出的信号之间的相位差的电动机。转子包括具有被磁化以具有周向交替不同极的轴向端面的磁体。定子具有与磁体的外周面相对的两个外磁极部。两个线圈通电以激励外部磁极部分。磁传感器与磁体的轴向端面相对。磁传感器的感磁极片检测由磁体旋转引起的磁场变化。感磁极片在与磁体的直径方向正交的方向上并排布置。可以在磁体的直径方向上调整磁性传感器的位置。

9. 发明授权

US07843093B2 Driving device 有权
标题翻译：驱动装置
公开(公告)号：US07843093B2
公开(公告)日：2010-11-30
申请号：US11404625
申请日：2006-04-14
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： H02K37/12
CPC分类号： H02K37/16
摘要： A stepping motor as a driving device has a stator with a plate part, and first and second outer magnetic pole parts axially extending from the plate part. A rotor formed by a rotary shaft and a core, each formed of a soft magnetic material, are disposed between the outer magnetic pole parts. The rotor has one axial end rotatably supported in the plate part. A magnet is rigidly fitted on an outer periphery of the rotor and magnetized such that different poles circumferentially alternate. A top plate is rigidly secured to the respective foremost ends of the pole parts and rotatably supports the other axial end of the rotor. The pole parts are engaged in a bobbin having a cover part covering the outer peripheral surface of the magnet. First and second coils are wound around the outer magnetic pole parts via the bobbin.
摘要翻译：作为驱动装置的步进电机具有带有板部的定子，以及从板部轴向延伸的第一和第二外部磁极部。在外部磁极部之间设置由旋转轴和芯构成的转子，每个由软磁性材料形成。转子具有可旋转地支撑在板部分中的一个轴向端。磁体刚性地装配在转子的外周上并被磁化，使得不同的磁极周向交替。顶板刚性地固定到极部件的相应的最前端，并可旋转地支撑转子的另一个轴向端。极部件接合在具有覆盖磁体的外周面的盖部的线轴上。第一和第二线圈通过线轴缠绕在外磁极部分上。

10. 发明授权

US07781924B2 Electromagnetic driving apparatus 有权
标题翻译：带定子的电机，支撑旋转轴转子
公开(公告)号：US07781924B2
公开(公告)日：2010-08-24
申请号：US11459813
申请日：2006-07-25
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： H02K37/14 , H02K1/12 , H02K7/09 , H02K37/00 , H02K37/04 , H02K37/10 , H02K37/12 , H02K37/16
CPC分类号： H02K37/14 , H02K1/145
摘要： A drive apparatus which is small in size, short in axial length, low in cost, and high in output. A stepping motor as the driving apparatus includes a first coil, a second coil, a magnet, and a rotor comprised of a core and a rotary shaft. First through fourth outer magnetic pole portions are opposed to the outer peripheral surface of the magnet with a predetermined gap between them. The first and the second coils are disposed adjacent to the magnet in an axial direction of the rotary shaft and disposed at respective ends of the rotary shaft. The first and second outer magnetic pole portions are inserted inside the first and second coils, respectively. As viewed in the circumferential direction of the magnet, the third and fourth outer magnetic pole portions are disposed close to the first and second outer magnetic pole portions, respectively.
摘要翻译：一种尺寸小，轴向长度短，成本低，输出量高的驱动装置。作为驱动装置的步进电机包括第一线圈，第二线圈，磁体和由芯和旋转轴组成的转子。第一至第四外磁极部与磁体的外周面相对，在它们之间具有预定的间隙。第一和第二线圈沿着旋转轴的轴向与磁体相邻设置，并且设置在旋转轴的相应端。第一和第二外部磁极部分别分别插入第一和第二线圈内。从磁铁的圆周方向看，第三和第四外部磁极部分别设置在第一和第二外部磁极部分附近。

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