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公开(公告)号：US11493528B2
公开(公告)日：2022-11-08
申请号：US16677975
申请日：2019-11-08
Applicant: DENSO CORPORATION
Inventor： Akito Sasaki , Atsushi Kobayashi , Michihiro Makita , Tetsuya Ohmi
Abstract: A position sensor including: a power supply terminal to which a power supply voltage is applied; a ground terminal to which a ground voltage is applied; an output terminal that outputs a signal; a detection portion that operates based on the power supply voltage and the ground voltage, and detects a position of a detection target by a magnetic resistance element whose resistance value changes according to a movement of the detection target; and a signal processing portion that operates based on the power supply voltage and the ground voltage, and processes a signal input from the detection portion.
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公开(公告)号：US11255884B2
公开(公告)日：2022-02-22
申请号：US17022861
申请日：2020-09-16
Applicant: DENSO CORPORATION
Inventor： Takuma Esaka , Akito Sasaki , Hiroaki Miwa
Abstract: A current sensor includes an electrical-conduction member, a magnetoelectric converter, and a shield. The shield includes a first shield and a second shield each having a plate shape. The first shield and the second shield being arranged such that surfaces are opposed to and spaced away from each other. A part of the electrical-conduction member and the magnetoelectric converter are located between the surface of the first shield and the surface of the second shield. The part of the electrical-conduction member extends in an extension direction that is along the surface of the first shield. At least one of the first shield and the second shield has an anisotropy in magnetic permeability in which the magnetic permeability in a lateral direction that is along the surface of the first shield and perpendicular to the extension direction is higher than the magnetic permeability in the extension direction.
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公开(公告)号：US11733063B2
公开(公告)日：2023-08-22
申请号：US16697902
申请日：2019-11-27
Applicant: DENSO CORPORATION
Inventor： Atsushi Kobayashi , Yasuhiro Kitaura , Michihiro Makita , Akito Sasaki , Tetsuya Ohmi
Abstract: A position sensor includes a detector and a signal processor. The detector includes: a sensor chip having a surface; a first detection element disposed at the surface of the sensor chip; and a second detection element disposed at the surface of the sensor chip. The signal processor processes a signal input from the detector. The first detection element outputs a first detection signal corresponding to a position of a detection target, based on a change in a magnetic field received from the detection target. The second detection element outputs a second detection signal corresponding to the position of the detection target, based on the change in the magnetic field received from the detection target. A center of balance of the first detection element coincides with a center of balance of the second detection element.
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Patent Agency Ranking
公开(公告)号：US11988692B2
公开(公告)日：2024-05-21
申请号：US17864778
申请日：2022-07-14
Applicant: DENSO CORPORATION
Inventor： Hiroaki Miwa , Akito Sasaki , Ryosuke Sakai , Takuma Esaka , Tatsuaki Sugito
CPC classification number: G01R15/205 , G01R15/207 , G01R19/0092
Abstract: A current sensor includes a plurality of individual sensors and a wiring case. Each of the individual sensors includes an electrical-conduction member through which a measurement current to be measured flows, a magnetoelectric converter and an insulating sensor housing. The magnetoelectric converter converts a measurement magnetic field caused by a flow of the measurement current into an electric signal. The sensor housing accommodates the electrical-conduction member and the magnetoelectric converter therein. The wiring case is larger than the sensor housing. The wiring case includes an insulating integrated housing in which the plurality of individual sensors is fixed, and an input/output wiring disposed in the integrated housing and electrically connected to the megnetoelectric converter of each of the plurality of individual sensors.
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公开(公告)号：US11953526B2
公开(公告)日：2024-04-09
申请号：US17849947
申请日：2022-06-27
Applicant: DENSO CORPORATION
Inventor： Akito Sasaki , Ryosuke Sakai , Hiroaki Miwa , Takeshi Tsukamoto , Hiroshi Nomura , Takuma Esaka , Tatsuaki Sugito
CPC classification number: G01R15/205 , G01R15/207 , G01R19/0092
Abstract: A current sensor includes a wiring board, a shield, an insulating sensor housing, and a shield adhesive. The wiring board and the shield are accommodated in the sensor housing. The sensor housing has a shield support part to support the shield, and a shield adhesion part. An application surface of the shield adhesion part is further from the shield than a contact surface of the shield support part. The shield is mounted on the contact surface of the shield support part, and the shield adhesive is disposed between the application surface of the shield adhesion part and the shield. The shield and the wiring board are aligned with and spaced from each other in the sensor housing.
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公开(公告)号：US11422165B2
公开(公告)日：2022-08-23
申请号：US17023994
申请日：2020-09-17
Applicant: DENSO CORPORATION
Inventor： Hiroaki Miwa , Akito Sasaki , Ryosuke Sakai , Takuma Esaka , Tatsuaki Sugito
Abstract: A current sensor includes a plurality of individual sensors and a wiring case. Each of the individual sensors includes an electrical-conduction member through which a measurement current to be measured flows, a magnetoelectric converter and an insulating sensor housing. The magnetoelectric converter converts a measurement magnetic field caused by a flow of the measurement current into an electric signal. The sensor housing accommodates the electrical-conduction member and the magnetoelectric converter therein. The wiring case is larger than the sensor housing. The wiring case includes an insulating integrated housing in which the plurality of individual sensors is fixed, and an input/output wiring disposed in the integrated housing and electrically connected to the megnetoelectric converter of each of the plurality of individual sensors.
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公开(公告)号：US11360123B2
公开(公告)日：2022-06-14
申请号：US17001960
申请日：2020-08-25
Applicant: DENSO CORPORATION
Inventor： Tatsuaki Sugito , Takeshi Tsukamoto , Takuma Esaka , Ryosuke Sakai , Akito Sasaki , Hatsuomi Isogai , Hiroaki Miwa , Hiroshi Nomura , Takashi Ishikawa , Katsunori Michiyama
Abstract: The current sensor has a conductive member through which a current to be measured flows in a predetermined direction, and a magneto electric converter facing and spaced apart from the conductive member in an intersecting direction intersecting the predetermined direction. An opposing portion of the conductive member facing the magneto electric converter has an annular shape in which two tip surfaces face each other via a gap around the predetermined direction. The magneto electric converter is opposed to the hollow portion, arranged in the opposing portion having an annular shape, in the intersecting direction via the gap.
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公开(公告)号：US11099034B2
公开(公告)日：2021-08-24
申请号：US16697806
申请日：2019-11-27
Applicant: DENSO CORPORATION
Inventor： Yasuhiro Kitaura , Atsushi Kobayashi , Michihiro Makita , Akito Sasaki , Tetsuya Ohmi
Abstract: A position sensor includes a detector and a signal processor. The detector includes a magnet generating a bias magnetic field and a detection element configured to be applied by the bias magnetic field, and generates plural detection signals including distinct phase difference and corresponding to plural ranges aligned in one direction along a movement direction of a detection target, based on a change in a magnetic field received by the detection element from the detection target with a movement of the detection target having a magnetic body. The signal processor acquires the detection signals from the detector, compares the detection signals with a threshold value, and specifies a position of the detection target as a position at one of the ranges based on a combination of magnitude relation between the detection signals and the threshold value.
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