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公开(公告)号：US07663360B2
公开(公告)日：2010-02-16
申请号：US11878523
申请日：2007-07-25
CPC分类号： G01D5/145
摘要： A rotation angle detecting device includes a magnetic member for providing a magnetic field, a magnetic sensor for sensing a change in the magnetic field when the magnetic member rotates relative to the magnetic sensor about a rotation axis. The magnetic sensor is disposed at a single position and includes a pair of sensor elements. The pair of sensor elements is disposed on an imaginary plane that is perpendicular to the rotation axis so that sensing surfaces of the sensor elements have 90 degrees in angle to each other and so that each of the sensing surfaces inclines by 45 degrees in angle to a line intersecting the rotation axis at right angles.
摘要翻译： 旋转角度检测装置包括用于提供磁场的磁性构件，用于感测当磁性构件相对于磁性传感器围绕旋转轴线旋转时的磁场变化的磁性传感器。 磁传感器设置在单个位置并且包括一对传感器元件。 一对传感器元件设置在垂直于旋转轴线的虚拟平面上，使得传感器元件的感测表面彼此成90度角，并且使得每个检测表面相对于倾斜角倾斜45度 直线与旋转轴线成直角相交。
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公开(公告)号：US20080048651A1
公开(公告)日：2008-02-28
申请号：US11878523
申请日：2007-07-25
CPC分类号： G01D5/145
摘要： A rotation angle detecting device includes a magnetic member for providing a magnetic field, a magnetic sensor for sensing a change in the magnetic field when the magnetic member rotates relative to the magnetic sensor about a rotation axis. The magnetic sensor is disposed at a single position and includes a pair of sensor elements. The pair of sensor elements is disposed on an imaginary plane that is perpendicular to the rotation axis so that sensing surfaces of the sensor elements have 90 degrees in angle to each other and so that each of the sensing surfaces inclines by 45 degrees in angle to a line intersecting the rotation axis at right angles.
摘要翻译： 旋转角度检测装置包括用于提供磁场的磁性构件，用于感测当磁性构件相对于磁性传感器围绕旋转轴线旋转时的磁场变化的磁性传感器。 磁传感器设置在单个位置并且包括一对传感器元件。 一对传感器元件设置在垂直于旋转轴线的虚拟平面上，使得传感器元件的感测表面彼此成90度角，并且使得每个检测表面相对于倾斜角倾斜45度 直线与旋转轴线成直角相交。
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3.发明授权公开(公告)号：US07560919B2
公开(公告)日：2009-07-14
申请号：US11529298
申请日：2006-09-29
申请人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
发明人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A rotation angle detecting device that detects a rotation angle of a rotating object includes a permanent magnet that generates magnetic fields in response to rotation of the rotating object, a magnetic sensor, a first yoke and a second yoke. The magnetic sensor includes a pair of close integrated magnetic sensing elements, such as hall elements, disposed at a position around the permanent magnet so that one of the sensing elements senses magnetic field at a phase different from the other. The first yoke and the second yoke forms two magnetic paths crossing each other at the magnetic sensor.
摘要翻译： 检测旋转物体的旋转角度的旋转角度检测装置包括响应于旋转物体，磁性传感器，第一磁轭和第二磁轭的旋转而产生磁场的永久磁铁。 磁传感器包括一对紧密集成的磁感应元件，诸如霍尔元件，设置在永磁体周围的位置，使得感测元件中的一个感测不同于另一个的相位的磁场。 第一磁轭和第二磁轭在磁传感器处形成彼此相交的两个磁路。
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4.发明授权公开(公告)号：US07071683B2
公开(公告)日：2006-07-04
申请号：US10670214
申请日：2003-09-26
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Tak da , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Tak da , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A rotation angle sensing device for detecting a relative rotation angle between a rotor and a stator includes main magnets, fixed in the rotor, and hole ICs, fixed in the stator. The hole ICs detect magnetic flux of the main magnets , and the relative rotation angle therebetween is detected. A supportive magnet is disposed between the hole ICs so as to offset the magnetic flux of the main magnets. Accordingly, a rotation angle in which the magnetic flux density detected in the hole ICs becomes 0 [mT] can be changed by the supportive magnet. Therefore, a 0° position of the rotation angle can be set to the rotation angle in which the magnetic flux density is detected as 0 [mT], and moreover the detectable range of the rotation angle can be enlarged to be more than 90°.
摘要翻译： 用于检测转子和定子之间的相对旋转角度的旋转角度检测装置包括固定在转子中的主磁体和固定在定子中的孔IC。 孔IC检测主磁体的磁通量，并检测其间的相对旋转角度。 支撑磁铁设置在孔IC之间，以抵消主磁体的磁通量。 因此，通过支撑磁铁可以改变在孔IC中检测到的磁通密度变为0 [mT]的旋转角度。 因此，可以将旋转角度的0°位置设定为检测磁通密度为0 [mT]的旋转角度，此外，可以将旋转角度的可检测范围扩大至大于90°。
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公开(公告)号：US07352173B2
公开(公告)日：2008-04-01
申请号：US10821934
申请日：2004-04-12
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
CPC分类号： G01D5/145
摘要： External magnetic members are provided outside the outer periphery of a rotor. When the rotor is positioned around its turning angle of 70 degrees, part of the magnetic fluxes generated by magnets pass through the external magnetic members. This makes it possible to reduce the magnetic fluxes passing through Hall ICs around the turning angle of 70 degrees, thereby linearizing the change characteristic of the magnetic flux density. Thus, it is possible to generally linearize the change characteristic of the density of the magnetic fluxes through the Hall ICs 7, with the detectable angle range kept wide.
摘要翻译： 外部磁性构件设置在转子的外周的外侧。 当转子围绕其转动角度70度定位时，由磁体产生的磁通的一部分通过外部磁性部件。 由此，能够将通过霍尔IC的磁通减小70度的转动角度，从而使磁通密度的变化特性线性化。 因此，可以通过霍尔IC7大致线性化磁通密度的变化特性，其中检测角度范围保持较宽。
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公开(公告)号：US07319320B2
公开(公告)日：2008-01-15
申请号：US11168381
申请日：2005-06-29
申请人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
发明人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
CPC分类号： G01D5/145
摘要： An improved rotation angle detecting device that detects a rotation angle of a first member relative to a second member is proposed. The rotation angle detecting device includes a magnet unit fixed to the first member and a pair of magnetic sensors fixed to the second member to provide output signals whose phase is different from each other at 90 degrees in angle. The magnet unit includes a pair of disk plates that has the same magnetic poles at the same circumferential positions and is disposed at a prescribed axial distance and a shaft that is made of magnetic material to support the disk plates at the center thereof. The magnetic unit provides a uniform magnetic field in a space around the shaft between the pair of disk plates, and a pair of magnetic sensors is disposed in the space.
摘要翻译： 提出了一种改进的旋转角度检测装置，其检测第一构件相对于第二构件的旋转角度。 旋转角检测装置包括固定到第一构件的磁体单元和固定到第二构件的一对磁性传感器，以提供90度角相位彼此不同的输出信号。 磁体单元包括一对圆盘板，它们在相同的圆周位置处具有相同的磁极并且以规定的轴向距离设置，以及由磁性材料制成的轴，以在其中心处支撑盘片。 磁性单元在一对盘片之间的轴周围的空间中提供均匀的磁场，并且在该空间中设置一对磁性传感器。
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公开(公告)号：US20060170419A1
公开(公告)日：2006-08-03
申请号：US11341537
申请日：2006-01-30
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
IPC分类号： G01B7/30
CPC分类号： G01D5/24438 , G01D5/145
摘要： A rotation angle detector for detecting change in the magnetic flux has a magnetic sensor being disposed at a position in a space between an outer surface of a shaft and a periphery of the magnetic flux generation means. A supplementary magnet is also used in a space that is enclosed in a circular trace of the magnetic sensor around the shaft for even distribution of the magnetic flux generated by the magnetic flux generation means.
摘要翻译： 用于检测磁通量变化的旋转角检测器具有磁传感器，该磁传感器设置在轴的外表面和磁通量产生装置的周边之间的空间中的位置。 辅助磁体也用于围绕轴围绕在磁传感器的圆形轨迹中的空间，以便均匀分布由磁通量产生装置产生的磁通量。
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公开(公告)号：US07339371B2
公开(公告)日：2008-03-04
申请号：US11341537
申请日：2006-01-30
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
IPC分类号： G01B7/30
CPC分类号： G01D5/24438 , G01D5/145
摘要： A rotation angle detector for detecting change in the magnetic flux has a magnetic sensor being disposed at a position in a space between an outer surface of a shaft and a periphery of the magnetic flux generation means. A supplementary magnet is also used in a space that is enclosed in a circular trace of the magnetic sensor around the shaft for even distribution of the magnetic flux generated by the magnetic flux generation means.
摘要翻译： 用于检测磁通量变化的旋转角检测器具有磁传感器，该磁传感器设置在轴的外表面和磁通量产生装置的周边之间的空间中的位置。 辅助磁体也用于围绕轴围绕在磁传感器的圆形轨迹中的空间，以便均匀分布由磁通量产生装置产生的磁通量。
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公开(公告)号：US20070069719A1
公开(公告)日：2007-03-29
申请号：US11529298
申请日：2006-09-29
申请人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
发明人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A rotation angle detecting device that detects a rotation angle of a rotating object includes a permanent magnet that generates magnetic fields in response to rotation of the rotating object, a magnetic sensor, a first yoke and a second yoke. The magnetic sensor includes a pair of close integrated magnetic sensing elements, such as hall elements, disposed at a position around the permanent magnet so that one of the sensing elements senses magnetic field at a phase different from the other. The first yoke and the second yoke forms two magnetic paths crossing each other at the magnetic sensor.
摘要翻译： 检测旋转物体的旋转角度的旋转角度检测装置包括响应于旋转物体，磁性传感器，第一磁轭和第二磁轭的旋转而产生磁场的永久磁铁。 磁传感器包括一对紧密集成的磁感应元件，诸如霍尔元件，设置在永磁体周围的位置，使得感测元件中的一个感测不同于另一个的相位的磁场。 第一磁轭和第二磁轭在磁传感器处形成彼此相交的两个磁路。
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公开(公告)号：US20060028203A1
公开(公告)日：2006-02-09
申请号：US11168381
申请日：2005-06-29
申请人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
发明人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
IPC分类号： G01B7/14
CPC分类号： G01D5/145
摘要： An improved rotation angle detecting device that detects a rotation angle of a first member relative to a second member is proposed. The rotation angle detecting device includes a magnet unit fixed to the first member and a pair of magnetic sensors fixed to the second member to provide output signals whose phase is different from each other at 90 degrees in angle. The magnet unit includes a pair of disk plates that has the same magnetic poles at the same circumferential positions and is disposed at a prescribed axial distance and a shaft that is made of magnetic material to support the disk plates at the center thereof. The magnetic unit provides a uniform magnetic field in a space around the shaft between the pair of disk plates, and a pair of magnetic sensors is disposed in the space.
摘要翻译： 提出了一种改进的旋转角度检测装置，其检测第一构件相对于第二构件的旋转角度。 旋转角检测装置包括固定到第一构件的磁体单元和固定到第二构件的一对磁性传感器，以提供90度角相位彼此不同的输出信号。 磁体单元包括一对圆盘板，它们在相同的圆周位置处具有相同的磁极并且以规定的轴向距离设置，以及由磁性材料制成的轴，以在其中心处支撑盘片。 磁性单元在一对盘片之间的轴周围的空间中提供均匀的磁场，并且在该空间中设置一对磁性传感器。
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