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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:US20230280377A1
公开(公告)日:2023-09-07
申请号:US18317330
申请日:2023-05-15
Applicant: DENSO CORPORATION
Inventor: Ryo MIYAMOTO , Kazuki MIKAMO , Takeshi TSUKAMOTO
CPC classification number: G01R15/20 , G01R19/0092
Abstract: A current sensor includes: a bus bar defining a longitudinal direction along one direction and in which an alternating current flows along the longitudinal direction; a sensor unit that outputs a detection signal based on a magnetic field generated according to the alternating current flowing through the bus bar; and a sensor housing in which the bus bar and the sensor unit are arranged. The bus bar is configured by a first bus bar and a second bus bar stacked in an arrangement direction of the bus bar and the sensor unit. The bus bar includes a covered portion covered with the sensor housing and a fastening portion exposed from the sensor housing. The first bus bar and the second bus bar are arranged in a state in which a gap is defined between the first bus bar and the second bus bar in the covered portion.
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公开(公告)号:US20210063446A1
公开(公告)日:2021-03-04
申请号:US17001810
申请日:2020-08-25
Applicant: DENSO CORPORATION
Inventor: Ryo MIYAMOTO
Abstract: A current sensor includes a first bus bar, a second bus bar, a third bus bar, a first detecting element, a second detecting element, and a third detecting element. The first bus bar, the second bus bar, and the third bus bar respectively includes a first recess, a second recess, and a third recess. The first recess and the second recess have shapes that are symmetric with respect to a virtual line. The third recess and the fourth recess have shapes that are symmetric with respect to the virtual line.
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