JP7314732B2 - 電流センサ - Google Patents
電流センサ Download PDFInfo
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- JP7314732B2 JP7314732B2 JP2019166015A JP2019166015A JP7314732B2 JP 7314732 B2 JP7314732 B2 JP 7314732B2 JP 2019166015 A JP2019166015 A JP 2019166015A JP 2019166015 A JP2019166015 A JP 2019166015A JP 7314732 B2 JP7314732 B2 JP 7314732B2
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- Prior art keywords
- conductors
- conductor
- magnetoelectric conversion
- orthogonal
- magnetic
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- 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
- G01R15/146—Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop
- G01R15/148—Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop involving the measuring of a magnetic field or electric field
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/16—Magnets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
上記実施形態では、導体10が3本である場合の例を挙げて説明したが、導体10は2本であっても良いし、4本以上であっても良い。いずれの場合であっても、磁性体コアを備えることなく、導体10を流れる電流を検出することが可能である。
10:導体
20:磁電変換ユニット
30:延出部
40:凹状部
41:直交部分
52:磁気検出素子
53:検出面
60:基板
Claims (4)
- 少なくとも2本の導体と、
前記導体に対して、互いに同じ方向を向く検出面を有し、当該検出面に入力される磁束の磁束密度を検出する少なくとも2つの磁気検出素子が設けられ、当該少なくとも2つの磁気検出素子の夫々の前記検出面に入力される前記磁束の前記検出面に直交する直交成分の前記磁束密度の差分に応じた信号を出力する少なくとも2つの磁電変換ユニットと、を備え、
前記少なくとも2本の導体の夫々は、互いに隣接する2本の導体の隣接方向である第1方向に直交する第2方向に沿って延出する延出部と、前記第1方向及び前記第2方向の双方に直交する第3方向に沿って延出する直交部分を有し前記延出部に対して前記第3方向に凹んだ凹状部とが設けられ、
前記少なくとも2つの磁電変換ユニットの夫々は、前記検出面が前記凹状部の夫々の前記直交部分に対向した状態で、且つ、前記検出面が前記凹状部における前記第2方向に沿う方向の中央部よりも前記直交部分の側にオフセットした状態で設けられている電流センサ。 - 前記互いに隣接する2本の導体の一方の前記凹状部に設けられる前記磁電変換ユニットは、前記2本の導体の他方の前記凹状部の前記中央部から前記第1方向に沿う延長線上の位置に設けられている請求項1に記載の電流センサ。
- 前記互いに隣接する2本の導体の前記凹状部の夫々に設けられる2つの前記磁電変換ユニットは、1枚の基板において互いに異なる面に実装されている請求項1又は2に記載の電流センサ。
- 前記少なくとも2本の導体は、三相モータに接続される3本のバスバーであって、前記3本のバスバーは、前記延出部が前記第1方向に沿って一列に並んでいる請求項1から3のいずれか一項に記載の電流センサ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019166015A JP7314732B2 (ja) | 2019-09-12 | 2019-09-12 | 電流センサ |
CN202010154841.3A CN112485495A (zh) | 2019-09-12 | 2020-03-06 | 电流传感器 |
US16/817,170 US11313884B2 (en) | 2019-09-12 | 2020-03-12 | Current sensor |
DE102020122262.9A DE102020122262A1 (de) | 2019-09-12 | 2020-08-26 | Stromsensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019166015A JP7314732B2 (ja) | 2019-09-12 | 2019-09-12 | 電流センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021043091A JP2021043091A (ja) | 2021-03-18 |
JP7314732B2 true JP7314732B2 (ja) | 2023-07-26 |
Family
ID=74686455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019166015A Active JP7314732B2 (ja) | 2019-09-12 | 2019-09-12 | 電流センサ |
Country Status (4)
Country | Link |
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US (1) | US11313884B2 (ja) |
JP (1) | JP7314732B2 (ja) |
CN (1) | CN112485495A (ja) |
DE (1) | DE102020122262A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021173728A (ja) * | 2020-04-30 | 2021-11-01 | 株式会社アイシン | 電流検出装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11226382B2 (en) * | 2020-04-07 | 2022-01-18 | Allegro Microsystems, Llc | Current sensor system |
US11796574B2 (en) * | 2021-01-07 | 2023-10-24 | Ford Global Technologies, Llc | Integration of current sensor with busbar |
JP7472853B2 (ja) | 2021-05-27 | 2024-04-23 | 株式会社デンソー | 電力変換装置 |
US11656250B2 (en) | 2021-09-07 | 2023-05-23 | Allegro Microsystems, Llc | Current sensor system |
US11892476B2 (en) | 2022-02-15 | 2024-02-06 | Allegro Microsystems, Llc | Current sensor package |
US11940470B2 (en) | 2022-05-31 | 2024-03-26 | Allegro Microsystems, Llc | Current sensor system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009020085A (ja) | 2007-07-13 | 2009-01-29 | Koshin Denki Kk | 多相電流の検出装置 |
JP2014021102A (ja) | 2012-07-13 | 2014-02-03 | Kohshin Electric Corp | 磁気シールド及びこれを備えた電流検出器 |
JP2016099111A (ja) | 2014-11-18 | 2016-05-30 | トヨタ自動車株式会社 | 電流センサ |
JP2019102612A (ja) | 2017-11-30 | 2019-06-24 | 富士電機株式会社 | インターフェースユニット及び半導体装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4833111B2 (ja) * | 2006-09-20 | 2011-12-07 | 株式会社東海理化電機製作所 | 電流検出器 |
JP5418811B2 (ja) * | 2009-01-30 | 2014-02-19 | アイシン・エィ・ダブリュ株式会社 | 電流検出装置 |
JP2013142569A (ja) * | 2012-01-10 | 2013-07-22 | Alps Green Devices Co Ltd | 電流センサ |
JP6127499B2 (ja) * | 2012-12-20 | 2017-05-17 | アイシン精機株式会社 | 電流センサ |
JP6379451B2 (ja) | 2012-12-20 | 2018-08-29 | アイシン精機株式会社 | 電流センサの製造方法 |
JP6303527B2 (ja) * | 2014-01-21 | 2018-04-04 | 日立金属株式会社 | 電流センサ |
JP2016099320A (ja) * | 2014-11-26 | 2016-05-30 | アイシン精機株式会社 | 電流センサ |
JP6699532B2 (ja) | 2016-12-12 | 2020-05-27 | 株式会社デンソー | 電流センサ |
JP2018185230A (ja) | 2017-04-26 | 2018-11-22 | 株式会社デンソー | 電流センサ |
JP7003620B2 (ja) * | 2017-12-14 | 2022-01-20 | 日立金属株式会社 | 電流センサ |
JP6973021B2 (ja) * | 2017-12-18 | 2021-11-24 | 日立金属株式会社 | 電流センサ |
JP7047435B2 (ja) * | 2018-02-13 | 2022-04-05 | 日立金属株式会社 | 電流センサの設計方法 |
-
2019
- 2019-09-12 JP JP2019166015A patent/JP7314732B2/ja active Active
-
2020
- 2020-03-06 CN CN202010154841.3A patent/CN112485495A/zh active Pending
- 2020-03-12 US US16/817,170 patent/US11313884B2/en active Active
- 2020-08-26 DE DE102020122262.9A patent/DE102020122262A1/de active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009020085A (ja) | 2007-07-13 | 2009-01-29 | Koshin Denki Kk | 多相電流の検出装置 |
JP2014021102A (ja) | 2012-07-13 | 2014-02-03 | Kohshin Electric Corp | 磁気シールド及びこれを備えた電流検出器 |
JP2016099111A (ja) | 2014-11-18 | 2016-05-30 | トヨタ自動車株式会社 | 電流センサ |
JP2019102612A (ja) | 2017-11-30 | 2019-06-24 | 富士電機株式会社 | インターフェースユニット及び半導体装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021173728A (ja) * | 2020-04-30 | 2021-11-01 | 株式会社アイシン | 電流検出装置 |
Also Published As
Publication number | Publication date |
---|---|
DE102020122262A1 (de) | 2021-03-18 |
CN112485495A (zh) | 2021-03-12 |
JP2021043091A (ja) | 2021-03-18 |
US20210080489A1 (en) | 2021-03-18 |
US11313884B2 (en) | 2022-04-26 |
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