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公开(公告)号：US20210381915A1
公开(公告)日：2021-12-09
申请号：US17408250
申请日：2021-08-20
Applicant: DENSO CORPORATION
Inventor： Ken TANAKA , Toshiro SUZUKI , Shigetoshi FUKAYA
Abstract: A sensor housing has a receiving recess at one end portion of the sensor housing located at one end of the sensor housing. The one end portion of the sensor housing faces first and second magnetic circuit portions. A circuit board is received in the receiving recess and has an opening, a front-side region and a rear-side region. The front-side region is located on a side of the opening where the one end of the sensor housing is placed. The rear-side region is located on an opposite side of the opening. A main body of a magnetic sensing device overlaps the opening such that terminals projecting from one of a pair of side walls of the main body are located at the front-side region, and terminals projecting from another one of the pair of side walls is located at the rear-side region.
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公开(公告)号：US20190383679A1
公开(公告)日：2019-12-19
申请号：US16550913
申请日：2019-08-26
Applicant: SOKEN, INC. , DENSO CORPORATION
Inventor： Ken TANAKA , Shingo SHIMIZU , Shigetoshi FUKAYA , Satoru JINNO , Toshiro SUZUKI
Abstract: A torque sensor includes: a torsion bar coaxially connecting a first shaft and a second shaft; a multipole magnet; a pair of magnetic yokes; and a magnetic sensor capable of detecting a density of magnetic flux formed by the pair of the magnetic yokes and having an inner magnetosensitive surface facing inward in a radial direction and an outer magnetosensitive surface facing outward in the radial direction when viewed along a central axis of the torsion bar. The torque sensor includes: a magnetic flux guiding member capable of magnetically coupling the magnetic yoke and the outer magnetosensitive surface of the magnetic sensor; and a water blocking portion capable of housing the magnetic sensor and the magnetic flux guiding member to restrict the magnetic sensor from coming into contact with water.
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公开(公告)号：US20130312539A1
公开(公告)日：2013-11-28
申请号：US13897827
申请日：2013-05-20
Applicant: DENSO CORPORATION
Inventor： Osamu SHIMOMURA , Yoshiki TAKAHASHI , Kenji TAKEDA , Shigetoshi FUKAYA
IPC: G01L3/10
Abstract: A torque sensor includes: a torsion bar; a multi-pole magnet; a pair of yokes on an outside of the multi-pole magnet in a radial direction and providing a magnetic circuit in a magnetic field generated by the multi-pole magnet; and a pair of magnetic sensors arranged along a circumferential direction. Each magnetic sensor includes a magnetism sensing part for detecting a magnetic flux density generated in the magnetic circuit, and outputs a detection signal to an external computing device. The magnetic sensors output the detection signals to the external computing device such that the computing device calculates a sum of outputs or a difference of outputs of the magnetic sensors so as to cancel a variation of the outputs produced by a magnetic flux generated from the multi-pole magnet and directly reaching the magnetism sensing parts.
Abstract translation: 扭矩传感器包括：扭杆; 多极磁铁 在多极磁铁的外侧沿径向的一对磁轭，并在由多极磁铁产生的磁场中提供磁路; 以及沿圆周方向布置的一对磁性传感器。 每个磁传感器包括用于检测在磁路中产生的磁通密度的磁感测部分，并将检测信号输出到外部计算装置。 磁传感器将检测信号输出到外部计算装置，使得计算装置计算出磁传感器的输出和输出的差值之和，以便消除由多通道产生的磁通产生的输出的变化， 直到磁感应部件。
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公开(公告)号：US20210380161A1
公开(公告)日：2021-12-09
申请号：US17408101
申请日：2021-08-20
Applicant: DENSO CORPORATION
Inventor： Ken TANAKA , Toshiro SUZUKI , Shigetoshi FUKAYA
Abstract: A magnetic sensor includes a magnetic sensing device, a sensor housing and a pair of magnetic flux guide members. The sensor housing includes a base body and a flange. The base body holds the magnetic sensing device at one end portion of the base body. The flange is fixed to the base body and is configured to be placed in contact with a receiving wall that receives a first magnetic circuit portion and a second magnetic circuit portion. The flange is made of a material having a higher rigidity than the base body.
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公开(公告)号：US20190212216A1
公开(公告)日：2019-07-11
申请号：US16232643
申请日：2018-12-26
Applicant: DENSO CORPORATION
Inventor： Ken TANAKA , Shingo SHIMIZU , Toshiro SUZUKI , Satoru JINNO , Shigetoshi FUKAYA
IPC: G01L3/10
Abstract: A torque detector detects a torsional torque between a first shaft and a second shaft based on a torsional displacement of an elastic member coaxially connecting the first shaft and the second shaft. The torque detector includes a magnetic flux generation unit and a magnetic sensor. The magnetic flux generation unit rotates with rotation of the first shaft and includes a first pole and a second pole into and out of which lines of magnetic force enter and exit. The magnetic sensor rotates with rotation of the second shaft and includes a detection surface for detecting a magnetic flux or a magnetic flux density. The first pole and the second pole are arranged to face each other across the magnetic sensor.
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Patent Agency Ranking
公开(公告)号：US20140130612A1
公开(公告)日：2014-05-15
申请号：US14063136
申请日：2013-10-25
Applicant: DENSO CORPORATION
Inventor： Yoshiki TAKAHASHI , Shigetoshi FUKAYA , Hideki KABUNE
Abstract: A torque sensor has a magnetic sensor, which is composed of a first magnetic detecting element, a second magnetic detecting element and a comparator. The first magnetic detecting element outputs an output signal of a provisional detection value, while the second magnetic detecting element outputs an output signal of a reference value. The comparator compares the provisional detection value and the reference value and outputs the provisional detection value as an authorized detection value, when a difference value between the provisional detection value and the reference value is smaller than a predetermined threshold value.
Abstract translation: 扭矩传感器具有由第一磁检测元件，第二磁检测元件和比较器构成的磁传感器。 第一磁检测元件输出临时检测值的输出信号，而第二磁检测元件输出参考值的输出信号。 当临时检测值和参考值之间的差小于预定阈值时，比较器比较临时检测值和参考值，并将临时检测值作为授权检测值输出。
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公开(公告)号：US20130152702A1
公开(公告)日：2013-06-20
申请号：US13716789
申请日：2012-12-17
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Yoshiki TAKAHASHI , Shigetoshi FUKAYA , Osamu SHIMOMURA
IPC: G01L3/10
Abstract: A torsion bar has first and second end portions that are fixed to input and output shafts, respectively, to coaxially connect between the input and output shafts. A multipolar magnet is fixed to the input shaft. First and second magnetic yokes are fixed to the output shaft. Magnetic sensors are held between magnetic flux collecting portions of first and second magnetic flux collecting rings, which are magnetically coupled to the first and second magnetic yokes, respectively. In each of the magnetic flux collecting portion, a connecting section and a mounting section are configured such that a width of the connecting section is smaller than a width of the mounting section.
Abstract translation: 扭杆具有分别固定到输入和输出轴的第一和第二端部，以在输入和输出轴之间同轴连接。 多极磁体固定在输入轴上。 第一和第二磁轭固定在输出轴上。 磁传感器被保持在分别磁耦合到第一和第二磁轭的第一和第二磁通集合环的磁通收集部分之间。 在每个磁通收集部分中，连接部分和安装部分被构造成使得连接部分的宽度小于安装部分的宽度。
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公开(公告)号：US20200158795A1
公开(公告)日：2020-05-21
申请号：US16748934
申请日：2020-01-22
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Toshiro SUZUKI , Satoru JINNO , Shigetoshi FUKAYA , Ken TANAKA , Kensuke KOBAYASHI
Abstract: A torsion bar of a torque detection device converts torque applied between an input shaft and an output shaft to a torsional displacement. A pair of yokes is secured to the output shaft, and forms a magnetic circuit in a magnetic field of a multipolar magnet secured to the input shaft. A magnetic flux guide member has a main body facing the yoke to guide magnetic flux of the magnetic circuit. A magnetic sensor is placed at an extension, and detects magnetic flux guided by the magnetic flux guide member. The magnetic flux guide member is configured to allow magnetic permeance per unit area between the magnetic flux guide member and the yoke to be greater at a location in the main body from which the extension is branched, than at a circumferential end portion of the main body.
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公开(公告)号：US20200041366A1
公开(公告)日：2020-02-06
申请号：US16590717
申请日：2019-10-02
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Ken TANAKA , Shigetoshi FUKAYA , Toshiro SUZUKI , Satoru JINNO
Abstract: A torque detection device includes a first magnetic circuit part, a second magnetic circuit part, a circuit board module, and a sensor housing. The first magnetic circuit part is disposed on one side of a multipolar magnet in an axial direction. The second magnetic circuit part is disposed on the other side of the multipolar magnet in the axial direction. The circuit board module includes plural magnetic sensors mounted thereon and facing the magnetic circuit on one end side in a width direction being included in the plane and intersecting the arrangement direction. The sensor housing is coupled to one end side in the arrangement direction of the circuit board module so as to support the circuit board module on the one end side in the arrangement direction of the circuit board module.
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公开(公告)号：US20190391025A1
公开(公告)日：2019-12-26
申请号：US16561748
申请日：2019-09-05
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Ken TANAKA , Toshiro SUZUKI , Satoru JINNO , Shigetoshi FUKAYA
Abstract: A torque detecting device detects a torsional torque between a first shaft and a second shaft based on a torsional displacement of a resilient member linking the first shaft and the second shaft coaxially. The torque detecting device is provided with: a magnet fixed to the first shaft; a first yoke fixed to the second shaft and arranged to be rotatable with respect to the magnet; a second yoke fixed to the second shaft and arranged to be rotatable together with the first yoke with respect to the magnet; a magnetic flux collector which collects magnetic flux; and a magnetic sensor which detects magnetic flux density. The magnetic flux collector is located to face both the first yoke and the second yoke. The magnetic sensor is located between the first yoke, from among the first yoke and the second yoke, and the magnetic flux collector, and detects the magnetic flux density between the first yoke and the magnetic flux collector.
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