-
公开(公告)号：US20060152093A1
公开(公告)日：2006-07-13
申请号：US11371980
申请日：2006-03-08
CPC分类号： H02K21/185 , H02K1/14
摘要： A sector drive mechanism includes an electromagnetic actuator including a rotor having four polarities, a C-shaped stator, and a current control portion that controls current applied to a first coil and a second coil, the C-shaped stator including a first magnetic pole magnetically excited by the first coil, a second magnetic pole magnetically excited by the second coil, and a third magnetic pole magnetically excited by the first coil and the second coil, and sectors that are connected to the electromagnetic actuator to open and close a shutter opening provided in a substrate. The first coil and the second coil are driven to close the shutter opening with a fewer number of pulses applied from the current control portion than the number of the pulses to open the shutter opening.
摘要翻译： 扇形驱动机构包括电磁致动器，其包括具有四个极性的转子，C形定子和控制施加到第一线圈和第二线圈的电流的电流控制部分，所述C形定子包括第一磁极 由第一线圈励磁，由第二线圈磁激励的第二磁极和由第一线圈和第二线圈磁激励的第三磁极，以及连接到电磁致动器以打开和闭合提供的快门开口的扇区 在基材中。 驱动第一线圈和第二线圈以从电流控制部分施加的脉冲数少于打开快门开口的脉冲数来关闭快门开口。
-
公开(公告)号：US07338221B2
公开(公告)日：2008-03-04
申请号：US11371980
申请日：2006-03-08
CPC分类号： H02K21/185 , H02K1/14
摘要： A sector drive mechanism includes an electromagnetic actuator including a rotor having four polarities, a C-shaped stator, and a current control portion that controls current applied to a first coil and a second coil, the C-shaped stator including a first magnetic pole magnetically excited by the first coil, a second magnetic pole magnetically excited by the second coil, and a third magnetic pole magnetically excited by the first coil and the second coil, and sectors that are connected to the electromagnetic actuator to open and close a shutter opening provided in a substrate. The first coil and the second coil are driven to close the shutter opening with a fewer number of pulses applied from the current control portion than the number of the pulses to open the shutter opening.
摘要翻译： 扇形驱动机构包括电磁致动器，其包括具有四个极性的转子，C形定子和控制施加到第一线圈和第二线圈的电流的电流控制部分，所述C形定子包括第一磁极 由第一线圈励磁，由第二线圈磁激励的第二磁极和由第一线圈和第二线圈磁激励的第三磁极，以及连接到电磁致动器以打开和闭合提供的快门开口的扇区 在基材中。 驱动第一线圈和第二线圈以从电流控制部分施加的脉冲数少于打开快门开口的脉冲数来关闭快门开口。
-
公开(公告)号：US20080106158A1
公开(公告)日：2008-05-08
申请号：US11965109
申请日：2007-12-27
申请人： Hisashi Kawamoto , Seiichi Oishi
发明人： Hisashi Kawamoto , Seiichi Oishi
摘要： A step motor includes a rotor having four magnetic poles, a first magnetic pole magnetically excited by a first coil, a second magnetic pole magnetically excited by a second coil, and a third magnetic pole magnetically excited by the first coil and the second coil. A gap between the third magnetic pole and the rotor is smaller than that between the first magnetic pole and the rotor and that between the second magnetic pole and the rotor. In the step motor, it is possible to intensify the influence, on the rotor having four poles, of the magnetic fields created from three magnetic poles. Accordingly, this can weaken the magnetic fields set up from the first magnetic pole and the second magnetic pole, which tend to intensify the influence on the rotor, enabling the torque smaller at the time of the rotation start of the rotor.
摘要翻译： 步进电动机包括具有四个磁极的转子，由第一线圈磁激励的第一磁极，由第二线圈磁激励的第二磁极和由第一线圈和第二线圈磁激励的第三磁极。 第三磁极和转子之间的间隙小于第一磁极和转子之间的间隙以及第二磁极和转子之间的间隙。 在步进电动机中，可以加强对由三个磁极产生的磁场的具有四个极的转子的影响。 因此，这可以削弱从第一磁极和第二磁极设置的磁场，这倾向于加强对转子的影响，使得转子旋转时的转矩变小。
-
公开(公告)号：US20060138991A1
公开(公告)日：2006-06-29
申请号：US10562329
申请日：2004-06-28
申请人： Hisashi Kawamoto , Seiichi Oishi
发明人： Hisashi Kawamoto , Seiichi Oishi
IPC分类号： H02P8/00
摘要： A step motor includes a rotor having four magnetic poles, a first magnetic pole magnetically excited by a first coil, a second magnetic pole magnetically excited by a second coil, and a third magnetic pole magnetically excited by the first coil and the second coil. A gap between the third magnetic pole and the rotor is smaller than that between the first magnetic pole and the rotor and that between the second magnetic pole and the rotor. In the step motor, it is possible to intensify the influence, on the rotor having four poles, of the magnetic fields created from three magnetic poles. Accordingly, this can weaken the magnetic fields set up from the first magnetic pole and the second magnetic pole, which tend to intensify the influence on the rotor, enabling the torque smaller at the time of the rotation start of the rotor.
-
公开(公告)号：US20060163953A1
公开(公告)日：2006-07-27
申请号：US11388871
申请日：2006-03-24
申请人： Hisashi Kawamoto , Seiichi Oishi
发明人： Hisashi Kawamoto , Seiichi Oishi
CPC分类号： H02K37/14
摘要： A step motor includes a rotor having four magnetic poles, a first magnetic pole magnetically excited by a first coil, a second magnetic pole magnetically excited by a second coil, and a third magnetic pole magnetically excited by the first coil and the second coil. A gap D between the third magnetic pole and the rotor is larger than a gap d between the first magnetic pole and the rotor and the gap d between the second magnetic pole and the rotor, so that a magnetic attraction is generated between a pole of the rotor and the first magnetic pole and between another pole of the rotor and the second magnetic pole. With this step motor applied to a shutter driving mechanism of a camera, it is possible to surely retain the shutter state even when the current does not flow.
摘要翻译： 步进电动机包括具有四个磁极的转子，由第一线圈磁激励的第一磁极，由第二线圈磁激励的第二磁极和由第一线圈和第二线圈磁激励的第三磁极。 第三磁极和转子之间的间隙D大于第一磁极和转子之间的间隙d以及第二磁极和转子之间的间隙d，从而在第二磁极和转子的极之间产生磁吸引力 转子和第一磁极以及转子的另一极与第二磁极之间。 通过将该步进电机应用于相机的快门驱动机构，即使当电流不流动时，也可以可靠地保持快门状态。
-
公开(公告)号：US20060250705A1
公开(公告)日：2006-11-09
申请号：US11449305
申请日：2006-06-08
申请人： Phichet Numnual , Hisashi Kawamoto , Seiichi Oishi , Osamu Takano
发明人： Phichet Numnual , Hisashi Kawamoto , Seiichi Oishi , Osamu Takano
IPC分类号： G02B9/00
CPC分类号： G03B9/02
摘要： An aperture apparatus includes a substrate having a lens opening, a first aperture sector having a first aperture opening, a second aperture sector having a second aperture opening, and a drive pin that is engaged in cam openings respectively formed in the first aperture sector and in the second aperture sector and that swings the first aperture sector and the second aperture sector. The first aperture sector and the second aperture sector are located in receding positions from the lens opening, when the drive pin is in an initial position. The cam openings include a swing region and a non-swing region, the swing region guiding a corresponding sector to the lens opening as the drive pin moves from the initial position, the non-swing region retaining the other sector in the receding position, when one of the first aperture sector and the second aperture sector is guided to the lens opening.
摘要翻译： 孔设备包括具有透镜开口的基板，具有第一开口开口的第一开口扇区，具有第二孔开口的第二开口扇区和与分别形成在第一开口扇区中的凸轮开口接合的驱动销， 第二光圈扇区，并使第一光圈扇区和第二光圈扇区摆动。 当驱动销处于初始位置时，第一光圈扇区和第二光圈扇区位于透镜开口的后退位置。 凸轮开口包括摆动区域和非摆动区域，当驱动销从初始位置移动时，摆动区域将相应扇区引导到透镜开口，非挥发区域将另一个扇区保持在后退位置，当 将第一光圈扇区和第二光圈扇区中的一个引导到透镜开口。
-
公开(公告)号：US20060226716A1
公开(公告)日：2006-10-12
申请号：US11386419
申请日：2006-03-22
申请人： Hisashi Kawamoto , Seiichi Oishi
发明人： Hisashi Kawamoto , Seiichi Oishi
IPC分类号： H02K37/14
摘要： A step motor includes a rotor having four magnetic poles, a first magnetic pole magnetically excited by a first coil, a second magnetic pole magnetically excited by a second coil, and a third magnetic pole magnetically excited by the first coil and the second coil. A gap between the third magnetic pole and the rotor is smaller than that between the first magnetic pole and the rotor and that between the second magnetic pole and the rotor. In the step motor, it is possible to intensify the influence, on the rotor having four poles, of the magnetic fields created from three magnetic poles. Accordingly, this can weaken the magnetic fields set up from the first magnetic pole and the second magnetic pole, which tend to intensify the influence on the rotor, enabling the torque smaller at the time of the rotation start of the rotor.
摘要翻译： 步进电动机包括具有四个磁极的转子，由第一线圈磁激励的第一磁极，由第二线圈磁激励的第二磁极和由第一线圈和第二线圈磁激励的第三磁极。 第三磁极和转子之间的间隙小于第一磁极和转子之间的间隙以及第二磁极和转子之间的间隙。 在步进电动机中，可以加强对由三个磁极产生的磁场的具有四个极的转子的影响。 因此，这可以削弱从第一磁极和第二磁极设置的磁场，这倾向于加强对转子的影响，使得转子旋转时的转矩变小。
-
公开(公告)号：US07338222B2
公开(公告)日：2008-03-04
申请号：US11449305
申请日：2006-06-08
申请人： Phichet Numnual , Hisashi Kawamoto , Seiichi Oishi , Osamu Takano
发明人： Phichet Numnual , Hisashi Kawamoto , Seiichi Oishi , Osamu Takano
IPC分类号： G03B9/02
CPC分类号： G03B9/02
摘要： An aperture apparatus includes a substrate having a lens opening, a first aperture sector having a first aperture opening, a second aperture sector having a second aperture opening, and a drive pin that is engaged in cam openings respectively formed in the first aperture sector and in the second aperture sector and that swings the first aperture sector and the second aperture sector. The first aperture sector and the second aperture sector are located in receding positions from the lens opening, when the drive pin is in an initial position. The cam openings include a swing region and a non-swing region, the swing region guiding a corresponding sector to the lens opening as the drive pin moves from the initial position, the non-swing region retaining the other sector in the receding position, when one of the first aperture sector and the second aperture sector is guided to the lens opening.
摘要翻译： 孔设备包括具有透镜开口的基板，具有第一开口开口的第一开口扇区，具有第二开口开口的第二开口扇区和与分别形成在第一开口扇区中的凸轮开口啮合的驱动销， 第二光圈扇区，并使第一光圈扇区和第二光圈扇区摆动。 当驱动销处于初始位置时，第一光圈扇区和第二光圈扇区位于透镜开口的后退位置。 凸轮开口包括摆动区域和非摆动区域，当驱动销从初始位置移动时，摆动区域将相应扇区引导到透镜开口，非挥发区域将另一个扇区保持在后退位置，当 将第一光圈扇区和第二光圈扇区中的一个引导到透镜开口。
-
公开(公告)号：US07385320B2
公开(公告)日：2008-06-10
申请号：US11386419
申请日：2006-03-22
申请人： Hisashi Kawamoto , Seiichi Oishi
发明人： Hisashi Kawamoto , Seiichi Oishi
IPC分类号： H02K37/14
摘要： A step motor includes a rotor having four magnetic poles, a first magnetic pole magnetically excited by a first coil, a second magnetic pole magnetically excited by a second coil, and a third magnetic pole magnetically excited by the first coil and the second coil. A gap between the third magnetic pole and the rotor is smaller than that between the first magnetic pole and the rotor and that between the second magnetic pole and the rotor. In the step motor, it is possible to intensify the influence, on the rotor having four poles, of the magnetic fields created from three magnetic poles. Accordingly, this can weaken the magnetic fields set up from the first magnetic pole and the second magnetic pole, which tend to intensify the influence on the rotor, enabling the torque smaller at the time of the rotation start of the rotor.
摘要翻译： 步进电动机包括具有四个磁极的转子，由第一线圈磁激励的第一磁极，由第二线圈磁激励的第二磁极和由第一线圈和第二线圈磁激励的第三磁极。 第三磁极和转子之间的间隙小于第一磁极和转子之间的间隙以及第二磁极和转子之间的间隙。 在步进电动机中，可以加强对由三个磁极产生的磁场的具有四个极的转子的影响。 因此，这可以削弱从第一磁极和第二磁极设置的磁场，这倾向于加强对转子的影响，使得转子旋转时的转矩变小。
-
公开(公告)号：US07211910B2
公开(公告)日：2007-05-01
申请号：US11388871
申请日：2006-03-24
申请人： Hisashi Kawamoto , Seiichi Oishi
发明人： Hisashi Kawamoto , Seiichi Oishi
IPC分类号： H02K37/00
CPC分类号： H02K37/14
摘要： A step motor includes a rotor having four magnetic poles, a first magnetic pole magnetically excited by a first coil, a second magnetic pole magnetically excited by a second coil, and a third magnetic pole magnetically excited by the first coil and the second coil. A gap D between the third magnetic pole and the rotor is larger than a gap d between the first magnetic pole and the rotor and the gap d between the second magnetic pole and the rotor, so that a magnetic attraction is generated between a pole of the rotor and the first magnetic pole and between another pole of the rotor and the second magnetic pole. With this step motor applied to a shutter driving mechanism of a camera, it is possible to surely retain the shutter state even when the current does not flow.
摘要翻译： 步进电动机包括具有四个磁极的转子，由第一线圈磁激励的第一磁极，由第二线圈磁激励的第二磁极和由第一线圈和第二线圈磁激励的第三磁极。 第三磁极和转子之间的间隙D大于第一磁极和转子之间的间隙d以及第二磁极和转子之间的间隙d，从而在第二磁极和转子的极之间产生磁吸引力 转子和第一磁极以及转子的另一极与第二磁极之间。 通过将该步进电机应用于相机的快门驱动机构，即使当电流不流动时，也可以可靠地保持快门状态。
-
-
-
-
-
-
-
-
-
搜索结果
42 条记录 (耗时 0.021 秒)
