公开(公告)号：US20200271687A1

公开(公告)日：2020-08-27

申请号：US16794867

申请日：2020-02-19

Applicant: Hitachi Metals, Ltd.

Inventor： Yukio IKEDA ,  Yuta KATAOKA ,  Masanori SAGAWA

IPC: G01P3/44 ,  B23K26/21

Abstract: A rotation speed sensor, configured to detect a rotation speed of a rotating body, is composed of a cable composed of an electric wire including a conductor wire, and a sheath provided over the electric wire, a circuit substrate mounted with an integrated circuit thereon and connected to the conductor wire being exposed from the cable, and a housing including a first housing, which is configured to hold the circuit substrate therein, and a second housing, which is configured to hold the cable therein, with the first housing being welded to the second housing, and with the second housing being welded to a surface of the sheath of the cable.

公开(公告)号：US20180003523A1

公开(公告)日：2018-01-04

申请号：US15639036

申请日：2017-06-30

Applicant: Hitachi Metals, Ltd.

Inventor： Yukio IKEDA

IPC: G01D5/165

CPC classification number: G01D5/165

Abstract: A line sensor includes a sensor cord including a resilient hollow insulator and two electrical wires arranged along an inner circumferential surface of the hollow insulator in an electrically non-contact state with each other, a constant current source which is connected to one of the two electrode wires at one end of the sensor cord, and a detecting device for detecting a pressed position. The other electric wire is grounded at the other end of the sensor cord. The two electric wires include a resistance wire having a resistance of 1 kΩ/m or more. The detecting device detects a voltage of the resistance wire at one end of the sensor cord to detect the pressed position in a longitudinal direction of the sensor cord based on the detected voltage.

公开(公告)号：US20150204916A1

公开(公告)日：2015-07-23

申请号：US14600784

申请日：2015-01-20

Applicant: Hitachi Metals, Ltd.

Inventor： Katsuya AKIMOTO ,  Hisashi TATE ,  Naoki FUTAKUCHI ,  Naofumi CHIWATA ,  Ken OKUYAMA ,  Yukio IKEDA ,  Kazuhisa TAKAHASHI

IPC: G01R19/00 ,  G01R33/09 ,  G01R19/25

CPC classification number: G01R19/0092 ,  G01R15/205 ,  G01R15/207 ,  G01R19/25 ,  G01R33/093

Abstract: An electric current sensor includes a plurality of bus bars arranged in parallel, a plurality of magnetic detection elements that are adapted to detect a strength of a magnetic field generated by an electric current flowing through the bus bars and to output a voltage according to the strength of the magnetic field detected, and an arithmetic operation part to arithmetically operate an electric current flowing through the bus bars based on the voltage output from the plurality of magnetic detection elements. The arithmetic operation part includes a magnetic flux density arithmetic operation part to arithmetically operate a magnetic flux density based on the voltage, and an electric current arithmetic operation part to arithmetically operate an electric current I1 to Im flowing through each of the bus bars based on formula (1) below, ( B 1 = a 11 · I 1 + a 12 · I 2 + … + a 1   n · I n B 2 = a 21 · I 1 + a 22 · I 2 + … + a 2  n · I n B 3 = a 31 · I 1 + a 32 · I 2 + … + a 3  n · I n ⋮   ⋮ B m = a m   1 · I 1 + a m   2 · I 2 + … + a mn · I n   where   a 11   to   a mn   are   coefficients , ( 1 ) B1 to Bm are a magnetic flux density and I1 to Im are an electric current.

Abstract translation: 电流传感器包括并排布置的多个母线，多个磁检测元件，其适于检测由流过母线的电流产生的磁场的强度，并根据强度输出电压 以及算术运算部件，其基于从多个磁检测元件输出的电压算术运算流经母线的电流。 算术运算部包括基于电压算术运算磁通密度的磁通密度算术运算部，以及电流运算部，根据公式计算流过各母线的电流I1〜Im （1）（B 1 = a 11·I 1 + a 12·I 2 + ... + a 1）n·I n B 2 = a 21·I 1 + a 22·I 2 + ... + a 2 n n I n B 3 = a 31·I 1 + a 32·I 2 + ... + a 3 n n I n⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮1 1 1 1 1 1 1 1 I I I I I I （1）B1到Bm是磁通密度，I1到Im是电流。

公开(公告)号：US20160178395A1

公开(公告)日：2016-06-23

申请号：US14966312

申请日：2015-12-11

Applicant: Hitachi Metals, Ltd.

Inventor： Yukio IKEDA ,  Shinya OEDA

IPC: G01D5/14

CPC classification number: G01D5/142 ,  G01D5/245 ,  G01D11/245 ,  G01D11/30

Abstract: A cable with a sensor includes electrically insulated wires, a sheath for covering the electrically insulated wires together, a sensor, and a housing for sealing one end of the sheath, while receiving at least a portion of the sensor. The housing includes a receiving portion for receiving the at least portion of the sensor, a lead out portion for the sheath being drawn therefrom, and a curved cylinder section having a circular cross section. The curved cylinder section is provided between the receiving portion and the lead out portion, to hold the electrically insulated wires. The curved cylinder section is made of a molded resin formed in a circular cross sectional shape at right angles to a direction of extending of the electrically insulated wires. The electrically insulated wires are held in the middle of the circular cross section of the curved cylinder section.

Abstract translation: 具有传感器的电缆包括电绝缘电线，用于将电绝缘电线覆盖在一起的护套，传感器和用于密封护套的一端的壳体，同时接收传感器的至少一部分。 壳体包括用于接收传感器的至少一部分的接收部分，用于从其中抽出鞘的引出部分和具有圆形横截面的弯曲圆筒部分。 弯曲圆筒部设置在接收部和引出部之间，以保持电绝缘线。 弯曲圆筒部由与绝缘导线的延伸方向成直角的圆形截面形状的模制树脂制成。 电绝缘线保持在弯曲圆筒部分的圆形横截面的中间。

公开(公告)号：US20160138983A1

公开(公告)日：2016-05-19

申请号：US14924359

申请日：2015-10-27

Applicant: Hitachi Metals, Ltd.

Inventor： Yukio IKEDA

IPC: G01L3/10 ,  B62D6/10

CPC classification number: G01L3/101 ,  B62D6/10 ,  B62D15/0215

Abstract: A torque steering angle sensor is provided. The sensor includes a ring magnet with magnetic poles, magnetic path forming members to vary in location relative to the magnetic poles depending on torsion of a torsion bar, one pair of magnetic flux collecting rings for the magnetic path forming members, a first detecting element to detect a magnetic field between the flux collecting rings, a second detecting element to receive a magnetic field from the ring magnet, a slide magnet for producing a magnetic field in a different direction from that of the magnetic field of the ring magnet in the second detecting element, and a sliding mechanism to move the slide magnet toward or apart from the second detecting element with rotation of a rotary member of an electrically assisted power steering device. The second detecting element detects the magnetic fields received from the ring magnet and the slide magnet.

Abstract translation: 提供了转矩转向角传感器。 传感器包括具有磁极的环形磁体，磁路形成部件，其根据扭杆的扭转而相对于磁极位置变化，一对用于磁路形成部件的磁通集合环，第一检测元件 检测通量收集环之间的磁场，从环形磁铁接收磁场的第二检测元件，用于在第二检测中产生与环形磁体的磁场不同方向的磁场的滑动磁体 元件，以及滑动机构，通过电动辅助动力转向装置的旋转构件的旋转使滑动磁体朝向或离开第二检测元件移动。 第二检测元件检测从环形磁铁和滑动磁体接收的磁场。

公开(公告)号：US20150316637A1

公开(公告)日：2015-11-05

申请号：US14682635

申请日：2015-04-09

Applicant: Hitachi Metals, Ltd.

Inventor： Naoki FUTAKUCHI ,  Yukio IKEDA ,  Kazuhisa TAKAHASHI

IPC: G01R35/00 ,  G01R33/09

CPC classification number: G01R15/205 ,  G01R33/0029 ,  G01R33/093 ,  G01R33/096 ,  G01R35/00

Abstract: A magnetic sensor includes a magnetic detection element, and a correcting section to correct an output voltage of the magnetic detection element and output the corrected output voltage. The correcting section is configured to compute a magnetic flux density from the output voltage of the magnetic detection element, compute and output the corrected output voltage having a linear relationship to the computed magnetic flux density.

Abstract translation: 磁传感器包括磁检测元件和用于校正磁检测元件的输出电压并输出校正输出电压的校正部。 校正部被配置为从磁检测元件的输出电压计算磁通密度，计算并输出与计算出的磁通密度成线性关系的校正输出电压。

公开(公告)号：US20190252596A1

公开(公告)日：2019-08-15

申请号：US16209190

申请日：2018-12-04

Applicant: Hitachi Metals, Ltd.

Inventor： Katsuya AKIMOTO ,  Yukio IKEDA

IPC: H01L41/047 ,  H01L41/113 ,  H01L41/087

CPC classification number: H01L41/0477 ,  H01L41/087 ,  H01L41/1132

Abstract: A piezoelectric body that is excellent in endurance, flexibility and bendability is achieved. A piezoelectric member includes: belt type first and second conductive rubber sheets that face each other; and a piezoelectric layer formed between an upper surface of the first conductive rubber sheet and a lower surface of the second conductive rubber sheet. The piezoelectric layer is made of a piezoelectric coating material with which at least either one of the upper surface of the first conductive rubber sheet and the lower surface of the second conductive rubber sheet is coated. When a pressure is applied to the piezoelectric layer through at least either one of the first conductive rubber sheet and the second conductive rubber sheet, a potential difference is generated between the first conductive rubber sheet and the second conductive rubber sheet.

公开(公告)号：US20170254666A1

公开(公告)日：2017-09-07

申请号：US15266457

申请日：2016-09-15

Applicant: Hitachi Metals, Ltd.

Inventor： Yukio IKEDA

IPC: G01D5/14 ,  G01D18/00

CPC classification number: G01D5/14 ,  G01D5/2449 ,  G01D18/00

Abstract: A rotation angle sensor includes a ring magnet that is provided around a rotating shaft, a magnetic field sensor that detects magnetic field strengths in radial and tangent directions of the rotating shaft, a rotation angle calculation section that calculates a rotation angle of the rotating shaft based on the magnetic field strengths detected by the magnetic field sensor, a correction value storage section that stores correction values preliminarily set for each magnetic pole or each pair of magnetic poles facing the magnetic field sensor, a facing magnetic pole detecting means that detects the magnetic pole or the pair of magnetic poles facing the magnetic field sensor, and a rotation angle correcting section that extracts correction values corresponding to the magnetic pole or the pair of magnetic poles detected, and corrects a rotation angle calculated in the rotation angle calculation section by using the extracted correction values.

公开(公告)号：US20170240095A1

公开(公告)日：2017-08-24

申请号：US15424248

申请日：2017-02-03

Applicant: Hitachi Metals, Ltd.

Inventor： Yukio IKEDA

IPC: B60Q1/00 ,  H01H3/00 ,  H03K17/96 ,  B60Q5/00

CPC classification number: B60Q1/0082 ,  B60K2350/928 ,  B60Q1/1484 ,  B60Q5/003 ,  B62D1/046 ,  H01H3/00 ,  H01H2003/007 ,  H01H2203/008 ,  H01H2231/026 ,  H03K17/962 ,  H03K17/975

Abstract: A steering switch device, which is mounted on a steering wheel, includes a linear switch that includes a hollow insulator having restorability and two electrode wires arranged spirally along an inner surface of a hollow part in the hollow insulator while being kept not in contact with each other, wherein a winding pitch coiling spirally the electrode wires is at least not more than 10 mm, and a detecting device that detects a press of the linear switch by sensing a contact of the electrode wires. The linear switch is arranged so as to be along at least part of a surface of the steering wheel.

公开(公告)号：US20160161286A1

公开(公告)日：2016-06-09

申请号：US14559959

申请日：2014-12-04

Applicant: Hitachi Metals, Ltd.

Inventor： Shinya OEDA ,  Yukio IKEDA

IPC: G01D5/14

CPC classification number: G01D5/145 ,  G01D11/245

Abstract: An onboard detector includes a cable including an insulated wire including a center conductor and an insulation covering the center conductor and a sheath covering the insulated wire, a sensor including a sensor main body including a detecting element and a lead wire extending from the sensor main body and connected to the center conductor, and a fixing member to fix the sensor to the cable. The fixing member is configured to fix the insulated wire exposed from the sheath while being bent between the sheath and the lead wire. The insulated wire fixed while being bent allows the cable to be arranged such that an axial direction of the sheath inside the fixing member intersects with a direction parallel to a longitudinal direction of the lead wire.

Abstract translation: 一种车载检测器，包括：电缆，包括绝缘线，包括中心导体和覆盖中心导体的绝缘体和覆盖绝缘电线的护套;传感器，包括传感器主体，其包括检测元件和从传感器主体延伸的引线 并连接到中心导体，以及固定构件，用于将传感器固定到电缆上。 固定构件被构造成在护套和引线之间弯曲的同时固定从护套露出的绝缘线。 被弯曲固定的绝缘线允许电缆被布置成使得固定构件内部的护套的轴向方向与平行于引线的纵向的方向相交。