EP2817641A1 - Capteur de courant pour montage sur un rail conducteur - Google Patents

Capteur de courant pour montage sur un rail conducteur

Info

Publication number
EP2817641A1
EP2817641A1 EP13701108.6A EP13701108A EP2817641A1 EP 2817641 A1 EP2817641 A1 EP 2817641A1 EP 13701108 A EP13701108 A EP 13701108A EP 2817641 A1 EP2817641 A1 EP 2817641A1
Authority
EP
European Patent Office
Prior art keywords
busbar
current sensor
plastic housing
sensor according
current
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP13701108.6A
Other languages
German (de)
English (en)
Inventor
Jens Nowotnick
Boris Adam
Michael Munz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2817641A1 publication Critical patent/EP2817641A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • G01R15/202—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 using Hall-effect devices

Definitions

  • the present invention relates to a device, in particular a
  • FIG. 1 shows an arrangement in which a respective current sensor encloses a phase of a three-phase electrical system.
  • current sensors 1 a, 1 b and 1 c are arranged, which receive substantially parallel to the surface of the printed circuit board L oriented busbars S.
  • the current sensors 1 a, 1 b and 1 c have to the concentration of the current rails S surrounding magnetic flux (not shown) flux concentrators.
  • Flux concentrators can be made of stamped laminated cores or sintered material. Thus, the bundled in the flux concentrators
  • magnetic flux are evaluated by means of known principles of action and set in relation to the current causing it.
  • the current sensor comprises a Hall sensor, which is encapsulated in a plastic housing.
  • the plastic housing can be manufactured in a known method step called "Molding" and already contain the Hall sensor and its connection lines
  • the surface of the plastic housing may have a lateral abutment surface for attachment to a bus bar, so that the current sensor is substantially in a direction perpendicular to the
  • the contact surface of the plastic housing may have a recess or be located in a recess or cavity.
  • the busbar can be embedded in the edge of a current sensor according to the invention.
  • An attachment between the busbar and the current sensor can take place in different ways: It can be a
  • Plastic housing has clamping elements by means of which the busbar can be enclosed and held laterally.
  • the Clamping elements comprise latching elements, by means of which edges the busbar can be enclosed and held laterally.
  • Busbar be undercut. Alternatively or additionally
  • Plug elements may be provided in the surface of the plastic housing, which penetrate recesses in a busbar and / or can undercut these.
  • a material connection can be produced between the plastic housing and the busbar (for example by means of adhesive).
  • the current sensor according to the invention can be equipped with structural elements which are designed such that they correspond to the contour of a busbar.
  • structural elements which are designed such that they correspond to the contour of a busbar.
  • pins may be provided as structural elements in the surface of the plastic housing, which are adapted to penetrate an opening in a bus bar and back pressed, embossed and / or welded to produce a secure connection between the plastic housing and the busbar.
  • the pins may, for example, have a substantially cylindrical cross-section and have a diameter in the range between 2 and 8 mm.
  • Frequently used cross sections for copper busbars range between 20 and 60 mm 2 to accommodate the currents found in automotive applications.
  • the dimensions of the recess for the busbar in the plastic housing between 10 mm and 25 mm in width and preferably in the range between 13 to 18 mm wide and in the range 0 to 8 mm depth, in particular in the range 3 to 6 mm depth.
  • the locking hooks and / or (plastic) pins can have a greater overall length for securely fixing the busbar in order to undercut the received busbar at the rear.
  • one or more dimensionally measuring Hall sensors can be used, for example, interference or foreign magnetic fields recognize and take into account.
  • At least two Hall sensors whereby e.g. a difference analysis can be done.
  • This makes it possible to identify disturbing influences and also to be able to carry out an evaluation of the magnetic field on the basis of a larger database.
  • redundant measurement results in fail safety which also ensures operation in the
  • the plastic housing in addition to a
  • evaluation circuit which is adapted to receive from the Hall sensor or the Hall sensors derived signals and evaluate. For example, simply adding both signals can increase the sensitivity of the signal. Alternatively, a subtraction of certain signals can make fault influences recognizable.
  • the evaluation circuit may comprise a so-called microcontroller, which means by the
  • Plastic housing led connecting cables is supplied with electrical energy.
  • the microcontroller can be set up
  • Evaluation circuit associated with network controller e.g., Can controller assigned, by means of which the current sensor could send evaluation results directly to a local bus system.
  • network controller e.g., Can controller
  • connection lines may in particular be arranged to be connected directly to terminals on a printed circuit board.
  • plug contacts may be present on the plastic housing and / or on the connecting lines themselves for a particularly simple contacting.
  • connection lines can be equipped with expansion areas or similar sections which, for example, have a meandering design
  • a current sensor according to the invention may consist of a combination of features as described above. In other words, one of the exemplary embodiments does not require substantially more technical features than those discussed. By dispensing with a flux concentrator, the production costs of a current sensor are reduced and the complexity of the current sensor decreases
  • Plastic housing provided structure for positioning and fastening of
  • Busbar arranged current sensor as has been described in detail above.
  • the current sensor of the assembly may be disposed on a portion of the bus bar located near the power cell of the vehicle or near an electrical converter
  • Figure 2 is a perspective view of an embodiment according to the present invention
  • Figure 3 is a spatial representation of an alternative
  • FIG. 4a shows a cross section through a current sensor according to the invention on a busbar in frictional connection
  • Figure 4b shows a cross section through a current sensor according to the invention on a busbar in positive connection
  • Figure 4c shows a cross section through a current sensor according to the invention on a busbar in material-locking connection
  • Figure 5 is a spatial representation of an alternative
  • Figure 2 shows a current sensor 1 according to the invention with a first and a second Hall sensor 2. As shown enlarged, the Hall sensors 2 are designed as 3D Hall elements. Both Hall sensors 2 are on
  • the plastic housing has a substantially cuboid basic shape.
  • the cuboid is designed to save space very flat, so has a small thickness in the vertical direction. His length
  • Plastic housing 3 which corresponds to the cross-sectional area of the busbar S substantially.
  • the recess 4 is arranged in the longitudinal direction of the plastic housing on its underside such that the busbar S at least halfway (half of its cross-section) enclosed by the recess 4 of the housing 3 can be.
  • the recess 4 for this purpose, a first edge 4a and a second edge 4c, which are arranged in a substantially vertical direction. Both end in the bottom 4b of the recess 4.
  • FIG. 3 shows an alternative embodiment of the arrangement shown in FIG. In contrast to Figure 2, Figure 3 shows no recess 4 in the plastic housing 3 of the current sensor 1. Instead, the
  • Plastic housing 3 two plastic pins 5a and 5b, by means of which the plastic housing 3 can be arranged in a predefined relative position on the busbar S.
  • the busbar S corresponding holes 6a and 6b, through which the plastic pins 5a and 5b can be inserted.
  • a torsion-proof relative positioning and fastening is thus independent of the width of the
  • Busbar S (indicated by dashed lines) possible.
  • FIG. 4a shows a cross section through a current sensor 1 according to the invention, in which a bus bar S is arranged in a recess 4 and the underside of which is undercut by latching elements 5c of the housing 3. On the left and on the right side of the busbar S are at about their height
  • each a first and a second Hall sensor 2 are arranged.
  • the illustration shown is an example of a non-positive connection, in which additionally undercut elements 5c for a secure
  • FIG. 4b shows an alternative attachment possibility to the arrangement shown in FIG. 4a.
  • the recess 4 in the plastic housing 3 here has a larger cross-section than that of the busbar S, so that a frictional connection between the flanks 4a and 4c of the recess and the flanks of the busbar S is not present.
  • a pin 5 of the plastic housing 3 is inserted through the busbar S and undercuts its underside by a locking element 5c.
  • a (not visible) second pin 5 from the direction of the viewer behind the cut pin 5 is arranged lying.
  • FIG. 4c shows an alternative attachment possibility between a current sensor 1 according to the invention and a busbar S.
  • the underside of the housing 3 is substantially planar in order to be able to correspond to a large variety of busbars.
  • a busbar S is arranged by way of example on the underside of the plastic housing 3 and fixed by means of an adhesive connection 10 symmetrically to the two Hall sensors 2. For exact positioning marks (not shown) may be provided on the plastic housing 3, based on which an exact
  • Positioning of the busbar relative to the Hall sensors 2 can be made.
  • Figure 5 shows a perspective view of an alternative embodiment of the present invention, in which the plastic housing 3 a
  • Microcontroller 7 as an evaluation circuit comprises. This is furnished, the
  • the Hall sensors 2 can be connected via lines (not shown) to the microcontroller 7, via which measurement signals are transmitted.
  • the Hall sensors 2 can be supplied with electrical energy via these or separate lines from the microcontroller 7. Such a power supply can Of course, take place independently of the microcontroller 7.
  • the microcontroller 7 can be supplied via lines with electrical energy.
  • the current sensor 1 the size of the current sensor 1 according to the invention.
  • Plastic housing 2 also comprise a (not shown) energy converter, for example, voltage of a certain height or frequency
  • the microcontroller 7 For transmission of information obtained, the microcontroller 7, a wireless and / or wired
  • Be assigned communication interface which may in particular also be arranged in the plastic housing 3. They can win over these
  • sensors such as e.g. Temperature, light and
  • Moisture sensors are integrated into a current sensor 1 according to the invention, in order to obtain further information about ambient and operating conditions by means of only one sensor unit. These additional sensors can also be used e.g. be powered and controlled via the microcontroller 7. Likewise, the data obtained by them can be interpreted by the microcontroller 7, evaluated and correlated with other data (e.g., stream data), in particular for the purpose of plausibility. This applies in particular to the temperature at the busbar S and they
  • a central idea of the present invention is to provide a current sensor 1 which can be optionally arranged at a predefined position of a busbar without threading it onto the busbar and having to push it over the edge of the busbar.
  • the present invention offers various possibilities of relative positioning and connection between the current sensor and the busbar, due to which a lateral attachment of the current sensor according to the invention to a
  • the present invention omits the use of a flux concentrator, which according to the prior art at least approximately encloses a bus bar whose current intensity is to be measured. If previous embodiments and features of the present invention

Landscapes

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

Abstract

La présente invention concerne un capteur de courant pour montage sur un rail conducteur (S) comprenant un capteur à effet Hall (2) coulé dans un boîtier en matière plastique (3), la surface du boîtier en matière plastique (3) étant montée dans une direction perpendiculaire à la direction longitudinale du rail conducteur (S) sur le rail conducteur (S), en particulier dans une position relative prédéfinie par rapport à ce dernier et reliée à celui-ci par complémentarité de forme et/ou à force et/ou par liaison de matière.
EP13701108.6A 2012-02-24 2013-01-25 Capteur de courant pour montage sur un rail conducteur Withdrawn EP2817641A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012202826A DE102012202826A1 (de) 2012-02-24 2012-02-24 Stromsensor zur Befestigung an einer Stromschiene
PCT/EP2013/051424 WO2013124117A1 (fr) 2012-02-24 2013-01-25 Capteur de courant pour montage sur un rail conducteur

Publications (1)

Publication Number Publication Date
EP2817641A1 true EP2817641A1 (fr) 2014-12-31

Family

ID=47603770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13701108.6A Withdrawn EP2817641A1 (fr) 2012-02-24 2013-01-25 Capteur de courant pour montage sur un rail conducteur

Country Status (4)

Country Link
EP (1) EP2817641A1 (fr)
CN (1) CN104160284A (fr)
DE (1) DE102012202826A1 (fr)
WO (1) WO2013124117A1 (fr)

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DE102014102793B4 (de) * 2014-03-03 2019-01-10 Harting Electric Gmbh & Co. Kg Befestigungselement für einen Stromsensor
DE102014223234B3 (de) * 2014-11-14 2016-03-17 Db Netz Ag Verfahren und Vorrichtung zur Diagnose elektrischer Weichen
DE102015202770B4 (de) * 2015-02-16 2019-04-18 Schaeffler Technologies AG & Co. KG Vorrichtung zur integrierten Strommessung innerhalb einer Hochvolt-Kontaktierung eines Hybridmoduls und Hybridmodul mit der Vorrichtung
CA3022658A1 (fr) * 2016-05-04 2017-11-09 Safran Electrical & Power Ensemble capteur de courant de barre omnibus
DE102017222016A1 (de) * 2017-12-06 2019-06-06 Zf Friedrichshafen Ag Verbindungsvorrichtung zum Verbinden einer Stromschiene eines Halbleitermoduls mit einer weiterführenden Stromschiene, Leistungselektronikvorrichtung mit einer Verbindungsvorrichtung und Verfahren zum Herstellen einer Leistungselektronikvorrichtung
DE202018103319U1 (de) * 2018-06-13 2019-09-16 Wago Verwaltungsgesellschaft Mbh Sensoreinrichtung für eine Reihenklemmenanordnung, Reihenklemmenanordnung, Reihenklemme, Schaltschrank sowie Ausleseeinrichtung
DE102018123204A1 (de) * 2018-09-20 2020-03-26 Valeo Siemens Eautomotive Germany Gmbh Formteil zur Aufnahme eines C-förmigen Magnetfeldkonzentrationselements, Magnetfeldkonzentrationsvorrichtung und Stromrichter
US11858437B2 (en) 2018-10-31 2024-01-02 Lear Corporation Electrical assembly
DE102019121385A1 (de) * 2019-08-07 2021-02-11 Infineon Technologies Ag Vorrichtung und verfahren zum montieren eines magnetfeldsensor-chips an einer stromschiene
DE102019212084B4 (de) 2019-08-13 2021-10-14 Robert Bosch Gmbh Stromrichter für eine elektrische Maschine
DE102019123472B3 (de) * 2019-09-02 2021-03-04 Infineon Technologies Ag Sensorvorrichtungen mit Sensorchip und Stromschiene
DE202019106325U1 (de) * 2019-11-13 2021-02-17 Wago Verwaltungsgesellschaft Mbh Reihenklemmenelement
DE102022101970B4 (de) 2022-01-28 2024-02-01 Infineon Technologies Ag Magnetkernfreies Stromsensormodul
DE102022129390A1 (de) 2022-11-08 2024-01-18 Schaeffler Technologies AG & Co. KG Sensormodul zur Strommessung und Verfahren zur Herstellung eines Sensormoduls zur Strommessung

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CN2381051Y (zh) * 1999-07-12 2000-05-31 卢彩五 连接式汇流排座盖组
JP2001066327A (ja) * 1999-08-25 2001-03-16 Yazaki Corp 電流センサ
US6642704B2 (en) * 2001-09-28 2003-11-04 Eaton Corporation Device for sensing electrical current and housing therefor
JP4861155B2 (ja) * 2006-12-20 2012-01-25 矢崎総業株式会社 電流センサ及びその成形方法
JP4926692B2 (ja) * 2006-12-27 2012-05-09 新光電気工業株式会社 配線基板及びその製造方法と半導体装置
DE102007054395A1 (de) * 2007-11-14 2009-05-20 Robert Bosch Gmbh Anordnung zur Messung eines elektrischen Stromes
JP5403789B2 (ja) * 2009-01-19 2014-01-29 矢崎総業株式会社 電流検出装置の組付け構造
DE102009029209A1 (de) * 2009-09-04 2011-03-10 Robert Bosch Gmbh Stromsensor, Strommessmodul und Verfahren zur Strommessung
CN201544813U (zh) * 2009-12-07 2010-08-11 浙江旺隆轨道交通设备有限公司 一种汇流排弹性线夹
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Also Published As

Publication number Publication date
WO2013124117A1 (fr) 2013-08-29
DE102012202826A1 (de) 2013-08-29
CN104160284A (zh) 2014-11-19

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