WO2014203862A3 - Current sensor - Google Patents

Current sensor Download PDF

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Publication number
WO2014203862A3
WO2014203862A3 PCT/JP2014/065924 JP2014065924W WO2014203862A3 WO 2014203862 A3 WO2014203862 A3 WO 2014203862A3 JP 2014065924 W JP2014065924 W JP 2014065924W WO 2014203862 A3 WO2014203862 A3 WO 2014203862A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic body
current sensor
current
bus bar
whole
Prior art date
Application number
PCT/JP2014/065924
Other languages
French (fr)
Japanese (ja)
Other versions
WO2014203862A2 (en
Inventor
高明 宮腰
柏木　孝夫
岡　禎一郎
一太 許
Original Assignee
Tdk株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tdk株式会社 filed Critical Tdk株式会社
Priority to JP2015522913A priority Critical patent/JP6384677B2/en
Publication of WO2014203862A2 publication Critical patent/WO2014203862A2/en
Publication of WO2014203862A3 publication Critical patent/WO2014203862A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/207—Constructional details independent of the type of device used

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

　Provided is a current sensor with which, compared to the prior art, it is possible to improve measurement accuracy when current is not passing through a current conductor.　A first magnetic body (4) and a second magnetic body (5) have the end surfaces (both ends) facing one another with a gap (7) in between, forming, as a whole, a square tube with slits (gaps (7)) at two locations on the outer peripheral surface thereof. The first magnetic body (4) and the second magnetic body (5), as a whole, surround a substrate (1) and a magnetosensitive element (2) and the part of the bus bar (10) which passes between the first magnetic body (4) and the second magnetic body (5). The magnetosensitive element (2) is on the first magnetic body (4) side of the first virtual line (L1) connecting the centers of the voids (7). Meanwhile, the part of the bus bar (10) which passes between a first magnetic body (4) and a second magnetic body (5) is on the magnetic body (5) side of the first virtual line (L1).
PCT/JP2014/065924 2013-06-21 2014-06-16 Current sensor WO2014203862A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015522913A JP6384677B2 (en) 2013-06-21 2014-06-16 Current sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-130595 2013-06-21
JP2013130595 2013-06-21

Publications (2)

Publication Number Publication Date
WO2014203862A2 WO2014203862A2 (en) 2014-12-24
WO2014203862A3 true WO2014203862A3 (en) 2015-03-12

Family

ID=52105436

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/065924 WO2014203862A2 (en) 2013-06-21 2014-06-16 Current sensor

Country Status (2)

Country Link
JP (1) JP6384677B2 (en)
WO (1) WO2014203862A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6278909B2 (en) * 2015-02-03 2018-02-14 アルプス電気株式会社 Current sensor
JP7203490B2 (en) * 2017-09-29 2023-01-13 昭和電工株式会社 Magnetic sensor assembly and magnetic sensor assembly manufacturing method
WO2023188293A1 (en) * 2022-03-31 2023-10-05 Tdk株式会社 Fixation structure, and electronic unit
JP7329118B1 (en) 2022-10-24 2023-08-17 旭化成エレクトロニクス株式会社 current sensor
CN117949710A (en) * 2022-10-28 2024-04-30 苏州力特奥维斯保险丝有限公司 Current sensor with reverse shielding element
KR102560318B1 (en) * 2023-04-25 2023-07-27 주식회사 이지코리아 Noise shield type current sensor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008275321A (en) * 2007-04-25 2008-11-13 Tdk Corp Current sensor
JP2010008050A (en) * 2008-06-24 2010-01-14 Tdk Corp Current sensor
US20100231198A1 (en) * 2009-03-12 2010-09-16 Consolidated Edison Company Of New York, Inc. Current measuring device
US20100264905A1 (en) * 2007-12-22 2010-10-21 Sensitec Gmbh Arrangement for the potential-free measurement of currents
JP2011149827A (en) * 2010-01-21 2011-08-04 Panasonic Electric Works Co Ltd Energization information measuring device
JP2011185870A (en) * 2010-03-10 2011-09-22 Tdk Corp Magnetic sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5482736B2 (en) * 2011-06-28 2014-05-07 株式会社デンソー Current sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008275321A (en) * 2007-04-25 2008-11-13 Tdk Corp Current sensor
US20100264905A1 (en) * 2007-12-22 2010-10-21 Sensitec Gmbh Arrangement for the potential-free measurement of currents
JP2010008050A (en) * 2008-06-24 2010-01-14 Tdk Corp Current sensor
US20100231198A1 (en) * 2009-03-12 2010-09-16 Consolidated Edison Company Of New York, Inc. Current measuring device
JP2011149827A (en) * 2010-01-21 2011-08-04 Panasonic Electric Works Co Ltd Energization information measuring device
JP2011185870A (en) * 2010-03-10 2011-09-22 Tdk Corp Magnetic sensor

Also Published As

Publication number Publication date
WO2014203862A2 (en) 2014-12-24
JP6384677B2 (en) 2018-09-05
JPWO2014203862A1 (en) 2017-02-23

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