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公开(公告)号：US20190277890A1
公开(公告)日：2019-09-12
申请号：US16425056
申请日：2019-05-29
Applicant: DENSO CORPORATION
Inventor： Takuma ESAKA , Kohsuke NOMURA , Ryosuke SAKAI , Tatsuaki SUGITO
IPC: G01R15/20
Abstract: A current sensor, which is configured to individually detect a current flowing in each of at least two current paths, includes at least two phases. Each phase includes a magnetic field detection element and a pair of first magnetic shield and second magnetic shield. The magnetic field detection element is disposed to face one of the current paths. The magnetic field detection element is configured to detect a magnetic field generated from the one of the current paths and to convert the detected magnetic field into an electric signal. The first magnetic shield and the second magnetic shield are disposed to face each other with the current path and the magnetic field detection element interposed between the first magnetic shield and the second magnetic shield. The first magnetic shield and the second magnetic shield are configured to shield the magnetic field detection element from an external magnetic field.
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公开(公告)号：US20190234996A1
公开(公告)日：2019-08-01
申请号：US16376131
申请日：2019-04-05
Applicant: DENSO CORPORATION
Inventor： Kohsuke NOMURA , Ryosuke SAKAI , Takuma ESAKA , Tatsuaki SUGITO
CPC classification number: G01R15/207 , G01R19/0092 , H01L23/367 , H01R9/223 , H01R2201/20 , H02J7/1423 , H02J2007/143 , H02M1/00 , H02M3/156 , H02M7/797 , H02M2001/0009 , H02P27/06
Abstract: A current sensor device includes a bus bar that is to be connected to a plate-shaped terminal of a semiconductor device, a magnetoelectric conversion element that is configured to detect a current flowing through the bus bar, and a resin portion that integrally holds the magnetoelectric conversion element and the bus bar. The bus bar has one end protruding from the resin portion, and the one end of the bus bar includes a penetration portion defined by wall surfaces. The wall surfaces includes a pair of opposing wall surfaces opposing to each other. At least one of the opposing wall surfaces is configured to be connected to the terminal.
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公开(公告)号：US20220326282A1
公开(公告)日：2022-10-13
申请号：US17846679
申请日：2022-06-22
Applicant: DENSO CORPORATION
Inventor： Takuma ESAKA , Ryosuke SAKAI , 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 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 located between the first shield and the second shield extends in an extension direction along the surface of the second shield. The second shield has two sides aligned in a lateral direction perpendicular to the extension direction, and has a plurality of extending parts extending toward the first shield at the sides and being aligned with and separated from each other in the extension direction. The magnetocelectric converter is located between the plurality of extending parts.
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公开(公告)号：US20210003614A1
公开(公告)日：2021-01-07
申请号：US17022190
申请日：2020-09-16
Applicant: DENSO CORPORATION
Inventor： Takuma ESAKA , Ryosuke SAKAI , 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 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 located between the first shield and the second shield extends in an extension direction along the surface of the second shield. The second shield has two sides aligned in a lateral direction perpendicular to the extension direction, and has a plurality of extending parts extending toward the first shield at the sides and being aligned with and separated from each other in the extension direction. The magnetocelectric converter is located between the plurality of extending parts.
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公开(公告)号：US20250155265A1
公开(公告)日：2025-05-15
申请号：US19024600
申请日：2025-01-16
Applicant: DENSO CORPORATION
Inventor： Yasuhiro KITAURA , Nagisa ONODA , Michihiro MAKITA , Tetsuya OHMI , Takamasa KIMPARA , Tomoyuki HARADA , Kazuhiro YOSHINO , Naohiro SUGIMOTO , Kazuaki WATANABE , Takuma ESAKA , Koki KAWAKAMI , Atsushi KOBAYASHI , Hidekazu WATANABE , Takeshi ITO , Koichiro MATSUMOTO , Tsukasa KONO , Ryosuke MURAYAMA
Abstract: A position detection device includes a substrate disposed to face a displaceable detection object, a transmitting coil provided in the substrate, a first receiving coil and a second receiving coil which are disposed inside the transmitting coil in a normal direction with respect to a surface direction of the substrate, and a signal processing unit that derives a displacement amount of the detection object in view of a gap between the detection object and the substrate, based on a first characteristic value of the first receiving coil and a second characteristic value of the second receiving coil.
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Patent Agency Ranking
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：US20200025803A1
公开(公告)日：2020-01-23
申请号：US16583506
申请日：2019-09-26
Applicant: DENSO CORPORATION
Inventor： Takuma ESAKA , Ryosuke SAKAI , Tatsuaki SUGITO
Abstract: A current sensor detects a current flowing through a current path. The current sensor includes plural sensor elements, and each sensor element has a current path, a magnetic detector, a first magnetic shield and a second magnetic shield. The magnetic detector faces a part of the current path. A part of the current path and the magnetic detector are positioned between the first and second magnetic shields. The second magnetic field, the current path, the magnetic detector and the first magnetic shield are stacked in order along a stacking direction in each sensor element. The plural sensor elements are disposed adjacently to each other in a direction perpendicular to the stacking direction. The current path has a facing part facing the magnetic detector, and a first bent part bending from the facing part toward the second magnetic shield.
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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：US20200150155A1
公开(公告)日：2020-05-14
申请号：US16747599
申请日：2020-01-21
Applicant: DENSO CORPORATION
Inventor： Ryosuke SAKAI , Tatsuaki SUGITO , Takuma ESAKA
Abstract: The current sensor for the current path includes: the current path; a magnetic detection unit having a magnetic detection element opposed to the current path and converting an alternating-current magnetic field generated from the current path into an electric signal, a signal line and a reference potential line; and a wiring board, on which the magnetic detection unit is mounted, having an insulation base and a wiring with a signal wiring connected to the signal line and a reference potential wiring connected to the reference potential line. A part of the signal wiring and a part of the reference potential wiring are arranged inside the insulation base.
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