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公开(公告)号：US20240295588A1
公开(公告)日：2024-09-05
申请号：US18661086
申请日：2024-05-10
Applicant: DENSO CORPORATION
Inventor： Ryo MIYAMOTO , Akito SASAKI , Kenji TOKUNAGA
CPC classification number: G01R15/207 , G01R19/0092
Abstract: A current sensor includes a bus bar, a core having a core hole, a gap forming portion, a core lateral portion, and a core bottom portion, a detection unit located in a gap, and a case containing the core. The case has an opening portion which is inserted in a core hole and in which the bus bar is inserted. The opening portion includes a facing surface facing the bus bar and a protruding portion protruding from the facing surface toward the bus bar to come into contact with the bus bar, and a space is formed between the facing surface of the bus bar.
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公开(公告)号：US20240295587A1
公开(公告)日：2024-09-05
申请号：US18660914
申请日：2024-05-10
Applicant: DENSO CORPORATION
Inventor： Ryo MIYAMOTO , Akito SASAKI , Kenji TOKUNAGA
CPC classification number: G01R15/207 , G01R19/0092
Abstract: A current sensor includes a bus bar, a core having a core hole, a gap forming portion, a core lateral portion, and a core bottom portion, a detection unit. The detection unit is located in a gap. A magnetic permeability of the core lateral portion is different from a magnetic permeability of the core bottom portion.
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公开(公告)号：US20250155474A1
公开(公告)日：2025-05-15
申请号：US19024901
申请日：2025-01-16
Applicant: DENSO CORPORATION
Inventor： Kazuhiro YOSHINO , Takeshi TSUKAMOTO , Akito SASAKI
Abstract: In a method for manufacturing a current sensor, a wiring board is placed by bringing the wiring board into contact with board contact portions of a sensor housing while deforming an adhesive applied on top surfaces of board adhesion portions of the sensor housing between the board adhesion portions and the wiring board, and a shield is placed by bringing the shield into contact with shield contact portions of the sensor housing while deforming an adhesive applied on top surfaces of shield adhesion portions of the sensor housing between the shield adhesion portions and the shield. After the placing of the wiring board and the placing of the shield, both the adhesive positioned between the board adhesion portions and the wiring board and the adhesive positioned between the shield adhesion portions and the shield are cured simultaneously.
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公开(公告)号：US20220357368A1
公开(公告)日：2022-11-10
申请号：US17864778
申请日：2022-07-14
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：US20200096368A1
公开(公告)日：2020-03-26
申请号：US16697902
申请日：2019-11-27
Applicant: DENSO CORPORATION
Inventor： Atsushi KOBAYASHI , Yasuhiro KITAURA , Michihiro MAKITA , Akito SASAKI , Tetsuya OHMI
IPC: G01D5/14
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：US20200072863A1
公开(公告)日：2020-03-05
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：US20220326283A1
公开(公告)日：2022-10-13
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
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：US20210003615A1
公开(公告)日：2021-01-07
申请号：US17023568
申请日：2020-09-17
Applicant: DENSO CORPORATION
Inventor： Akito SASAKI , Ryosuke SAKAI , Hiroaki MIWA , Takeshi TSUKAMOTO , Hiroshi NOMURA , Takuma ESAKA , Tatsuaki SUGITO
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：US20210003616A1
公开(公告)日：2021-01-07
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：US20200096367A1
公开(公告)日：2020-03-26
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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