公开(公告)号：US20140103911A1

公开(公告)日：2014-04-17

申请号：US13966825

申请日：2013-08-14

Applicant: DENSO CORPORATION

Inventor： Hitomi HONDA ,  Akitoshi MIZUTANI ,  Yoshiyuki KONO

IPC: G01D5/14

CPC classification number: G01D5/14 ,  G01D5/145

Abstract: A rotation angle detection device has a first yoke, an inside surface of which is formed of a first concave curved surface and a second concave curved surface, and a second yoke, an inside surface of which is formed of a third concave curved surface and a fourth concave curved surface. Each concave curved surface does not extend in a second direction but extends toward a first flat surface or a second flat surface in an inclined manner. The first flat surface and the second flat surface face each other sandwiching a Hall element therebetween and are parallel to each other. The magnetic flux, which leaks from the first yoke into an inside space and reaches the second yoke, flows in the second direction over a wider area around the Hall element.

Abstract translation: 旋转角度检测装置具有第一磁轭，其内表面由第一凹曲面和第二凹曲面形成，第二磁轭的内表面由第三凹曲面和 第四凹曲面。 每个凹曲面不在第二方向上延伸，而是以倾斜的方式朝着第一平坦表面或第二平坦表面延伸。 第一平面和第二平面彼此面对，在其间夹着霍尔元件并且彼此平行。 从第一磁轭泄漏到内部空间并到达第二磁轭的磁通量在第二方向上在霍尔元件周围的较宽区域上流动。

公开(公告)号：US20130271118A1

公开(公告)日：2013-10-17

申请号：US13856830

申请日：2013-04-04

Applicant: DENSO CORPORATION

Inventor： Akitoshi MIZUTANI ,  Hitomi HONDA ,  Yoshiyuki KONO

IPC: G01B7/00

CPC classification number: G01B7/003 ,  G01B7/30 ,  G01D5/00 ,  G01D5/145 ,  G01D5/147

Abstract: A stroke amount detection device includes a yoke, a magnetic flux generation section, and a magnetism detection section. The yoke has a protruding section that protrudes to outside the yoke. The magnetic flux generation section is located in the yoke. The magnetism detection section is disposed between the magnetic flux generation section and the protruding section. The magnetism detection section is disposed at a fixed position with respect to the magnetic flux generation section. The magnetism detection section outputs a signal in accordance with a magnetic flux density generated due to a relative movement of the yoke with respect to the magnetism detection section.

Abstract translation: 行程量检测装置包括轭，磁通产生部和磁检测部。 轭具有突出到轭的外部的突出部分。 磁通量产生部位于磁轭中。 磁检测部设置在磁通产生部和突出部之间。 磁检测部相对于磁通产生部配置在固定位置。 磁检测部根据磁轭相对于磁检测部的相对运动而产生的磁通密度输出信号。

公开(公告)号：US20230003267A1

公开(公告)日：2023-01-05

申请号：US17940327

申请日：2022-09-08

Applicant: DENSO CORPORATION

Inventor： Hitomi HONDA ,  Yoshinori INUZUKA ,  Yusuke KIMURA ,  Shinji KOMATSU

IPC: F16D48/06 ,  G01D5/245

Abstract: A position detection device includes a magnetic detection element that is positioned radially outside a first clutch component portion and a second clutch component portion of a dog clutch around an axis. The magnetic detection element is provided between a first magnetic flux path portion and a second magnetic flux path portion. The magnetic detection element outputs a sensor signal indicating the direction of a magnetic flux passing between the first magnetic flux path portion and the second magnetic flux path portion. The magnetic detection element outputs a sensor signal indicating a position relationship between the first clutch component portion concerning a first hole portion as well as a first tooth portion and the second clutch component portion concerning the second hole portion as well as the second tooth portion, based on changes in magnetic flux directions depending on the position relationship in a rotation direction around the axis.

公开(公告)号：US20220113124A1

公开(公告)日：2022-04-14

申请号：US17559432

申请日：2021-12-22

Applicant: DENSO CORPORATION

Inventor： Hitomi HONDA ,  Yoshiyuki KOUNO

IPC: G01B7/30 ,  G01D5/14 ,  G01D5/16

Abstract: A rotation angle detection device that detects a rotation angle of a valve body. The rotation angle detection device includes a shaft, a gear, a magnetic field generator, and a magnetic detection element. The shaft is connected to the valve body. The magnetic field generator is arranged on a gear side and generates a magnetic field. The magnetic detection element is arranged on an extension of the shaft and detects magnetic flux density of the magnetic field that rotates together with the gear.

公开(公告)号：US20190011286A1

公开(公告)日：2019-01-10

申请号：US16067654

申请日：2016-12-16

Applicant: DENSO CORPORATION

Inventor： Hitomi HONDA ,  Yoshiyuki KONO ,  Hirofumi HAGIO

IPC: G01D5/14

CPC classification number: G01D5/145 ,  G01B7/003 ,  G01B7/14 ,  G01B7/30 ,  G01B11/026 ,  G01D5/12 ,  G01D5/14 ,  G01D11/245 ,  G01R33/0023 ,  G01R33/0052 ,  G01R33/09

Abstract: A sensor of a position detecting device includes a sensor body, a magnetic detector, and at least one engagement protrusion that extends from a position in the vicinity of the magnetic detector. The engagement protrusion engages with an engagement hole disposed on a casing. An anti-rotation hole is disposed on the casing in a position spaced apart from the engagement hole. An anti-rotation pin is disposed on the sensor body, and engages with the anti-rotation hole to prevent the casing and the sensor body from rotating relatively to each other about the engagement hole. At least a part of the engagement protrusion is in contact with an inner wall of the engagement hole on a straight line L connecting a center of the magnetic detector and a center of the anti-rotation pin.

公开(公告)号：US20160123767A1

公开(公告)日：2016-05-05

申请号：US14922375

申请日：2015-10-26

Applicant: DENSO CORPORATION

Inventor： Hitomi HONDA ,  Akitoshi MIZUTANI ,  Yoshiyuki KONO

IPC: G01D5/12 ,  G01B7/30

CPC classification number: G01D5/145

Abstract: A first opposing surface of a first yoke has a constant radius of curvature and has a center of curvature that lies on a center of rotation. At least two rotation direction end portions of a second opposing surface of the second yoke are formed such that toward either end in the rotation direction, the two end portions are increasingly spaced away from a reference curved surface in a direction away from the first opposing surface. The first and second opposing surfaces face each other to define a gap thereinbetween. Accordingly, the gap between the yokes is wider at its end portions than at its center, and increases in magnetic flux density flowing through a Hall element is curtailed at the end portions of the gap. Further, it is not necessary for the first yoke to protrude outward when widening the end portions of the gap.

Abstract translation: 第一轭的第一相对表面具有恒定的曲率半径并且具有位于旋转中心的曲率中心。 第二磁轭的第二相对表面的至少两个旋转方向的端部形成为使得朝着旋转方向的任一端，两个端部在远离第一相对表面的方向上与参考曲面间隔离得越来越远 。 第一和第二相对表面彼此面对以在其间限定间隙。 因此，轭部之间的间隙在其端部处比在其中心处更宽，并且在间隙的端部处限制流过霍尔元件的磁通密度的增加。 此外，当扩大间隙的端部时，第一磁轭不必向外突出。

公开(公告)号：US20130320967A1

公开(公告)日：2013-12-05

申请号：US13904409

申请日：2013-05-29

Applicant: DENSO CORPORATION

Inventor： Hitomi HONDA ,  Akitoshi MIZUTANI ,  Yoshiyuki KONO

IPC: G01B7/30

CPC classification number: G01B7/30 ,  G01D5/145

Abstract: A rotation angle detection device includes a magnetic field generation section, a yoke, and a magnetism detection section. The magnetic field generation section has a first end portion and a second end portion. The yoke has such a tube shape that the magnetic field generation section and a rotation axis of a rotating body are located therein. The yoke has a gap at a part in a circumferential direction in a cross section perpendicular to the rotation axis. The magnetism detection section is disposed in the gap and outputs an electrical signal in accordance with a magnetic field strength in the gap. The magnetic field generation section is disposed in such a manner that a magnetic force line passing through the magnetic field generation section passes through the rotation axis regardless of the rotation angle of the rotating body and the rotation axis passes through the first end portion.

Abstract translation: 旋转角度检测装置包括磁场产生部，磁轭和磁性检测部。 磁场产生部具有第一端部和第二端部。 磁轭具有使磁场产生部分和旋转体的旋转轴线位于其中的管状。 轭在与旋转轴垂直的截面中在圆周方向的一部分具有间隙。 磁性检测部设置在间隙中，并根据间隙中的磁场强度输出电信号。 磁场产生部分以这样的方式设置，使得通过磁场产生部分的磁力线不管旋转体的旋转角度如何，通过旋转轴线，旋转轴线穿过第一端部。