WO2008022632A1 - Élément électrique, notamment résistance de mesure, et procédé de fabrication d'un élément électrique de ce type - Google Patents

Élément électrique, notamment résistance de mesure, et procédé de fabrication d'un élément électrique de ce type Download PDF

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Publication number
WO2008022632A1
WO2008022632A1 PCT/DE2007/001481 DE2007001481W WO2008022632A1 WO 2008022632 A1 WO2008022632 A1 WO 2008022632A1 DE 2007001481 W DE2007001481 W DE 2007001481W WO 2008022632 A1 WO2008022632 A1 WO 2008022632A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical component
bent
component according
strip
slot
Prior art date
Application number
PCT/DE2007/001481
Other languages
German (de)
English (en)
Inventor
Gerhard Berghoff
Carsten Senche
Maximilian Steinmann
Ralf Gürtner
Volker Högendörfer
Detlef Neusatz
Zoltan Veres
Stefan Kimpfler
Original Assignee
Conti Temic Microelectronic 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 Conti Temic Microelectronic Gmbh filed Critical Conti Temic Microelectronic Gmbh
Priority to DE112007002548T priority Critical patent/DE112007002548A5/de
Publication of WO2008022632A1 publication Critical patent/WO2008022632A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/28—Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals

Definitions

  • Electrical component in particular measuring resistor and method for producing such an electrical component
  • the invention relates to an electrical resistance, in particular measuring resistor and method for producing such an electrical component.
  • the electrical resistance is, in particular, a surface-mounted measuring resistor which is applied in so-called SMD (surface-mounted device) design by means of, for example, connection contacts to contact surfaces, such as conductor tracks of a printed circuit board.
  • SMD surface-mounted device
  • EP 0 605 800 B1 discloses such a surface-mountable resistor in which an electrically and mechanically connecting resistance element is arranged between two separate connection parts, the two connection parts and the resistance element being plate-shaped and connecting the two connection parts to the edges of the plate-shaped one
  • Resistance elements are welded.
  • the known from the prior art resistors only a resistance element or a resistance path, also called Einzelshunt on.
  • a so-called multiple shunt ie for a resistor with multiple resistance paths, several Einzelshunts are interconnected. These usually have to be successively applied to the printed circuit board and contacted in a so-called reflow soldering or wave soldering process.
  • the invention has for its object to provide a particular surface-mountable device that is simple in design and designed to be as variable as possible and beyond that can be produced in a few manufacturing steps.
  • the object is achieved by the features of claim 1.
  • the object is achieved by the features of claim 11th
  • At least one resistance element and a plurality of connection elements are formed from a strip strip of a metallic alloy, wherein the strip strip has a substantially tunnel-shaped middle section and ends bent at right angles inwards or outwards in the longitudinal direction, wherein at least one of the bent ends is provided with at least one slot extending at right angles from the bent end at least partially along the longitudinal direction of the tape strip.
  • the slot passes centrally through at least the bent end, so that two separate connection elements of the same size are formed.
  • two essentially equal resistance paths with the same resistance value are formed.
  • the slot may eccentrically pass through at least the bent end and form two separate connection elements of different sizes. This allows the formation of different resistance paths with different resistance values in a particularly simple manner.
  • the resistance elements are usually low-resistance as so-called shunts or closing resistors and are used to measure currents.
  • the connection elements are designed as power connection contacts.
  • the connection elements can serve as measuring voltage connection contacts.
  • slots are provided on both sides of the tape strip at the respective end with mutually corresponding shapes and dimensions.
  • the slot extends from one of the bent ends along the longitudinal direction of the tape strip over the u-shaped portion to the beginning of the opposite bent end.
  • a plurality of mutually parallel slots are introduced at the respective end, which subdivides at least one of the ends of the tape strip into at least three separate connection elements, of which at least one connection element as a power connection contact and the other
  • Measuring voltage connection contacts are formed. This allows a current and a voltage measurement separately from the measuring resistor.
  • two connection elements for the current and two connection elements for the voltage measurement are formed by corresponding slit of the tape strip for each resistance path or each resistance element.
  • such a plurality of connection elements allows a secure connection of the component to the circuit board, by the thermal liquefaction of the solder due thermal stress contacted at least one of the Ranseiemente sure: and thus holds the device on the circuit board.
  • four short slots are inserted in the bent ends, wherein at each end of the tape through the slots introduced a power and a voltage terminal contact are formed.
  • the strip strip of metallic alloy is preferably formed from a copper-nickel-manganese alloy.
  • the tape strip is Isotan CuNi44 or Cu55Ni44Mn1.
  • connection elements are designed as power connection contacts or at least two of the connection elements as a power connection contact and the others as measuring voltage connection contacts.
  • At least one flat strip of tape is severed from a material strip of a metallic alloy and a slot is introduced at one end of the strip parallel to its longitudinal direction, and then the strip is bent several times transversely to the longitudinal direction of the strip.
  • the separation, slitting and forming of the tape strip can be carried out in a single process step by means of a combined punching and bending tool.
  • solder resistors are eliminated, since the tap of the voltage drop outside of the soldering knee by separate connection elements for the voltage measurement.
  • the circuit board can be produced in a single reflow soldering.
  • Fig. 1 shows schematically in plan view an electrical component with several
  • Fig. 2 shows schematically an electrical equivalent circuit diagram for the electrical
  • FIG. 3 shows schematically the electrical component according to Figure 1 in a
  • FIG. 4 is a schematic side view of the electrical component according to FIG. 1,
  • FIG. 5 is a schematic perspective view of the electrical component according to FIG. 1,
  • Fig. 6 shows schematically an alternative embodiment for an electrical
  • FIG. 7 shows schematically an electrical equivalent circuit diagram for the electrical component according to FIG. 6.
  • the electrical component 1 is designed as a low-impedance measuring resistor, which is made surface mountable for a PCB assembly.
  • the component 1 is formed from a tape strip 2 which is provided at least at one end 2.1 with a slot 3 which divides the end 2.1 into two sections.
  • the strip strip 2 is made of a metallic alloy, in particular a copper-nickel-manganese alloy, for example of an isotan-CuNiMn alloy.
  • FIG. 2 shows, by way of example, an electrical equivalent circuit diagram for the component 1 according to FIG. 1 with a centrally arranged slot 3, whereby two essentially equal resistances R1 and R2 are formed.
  • this can also be arranged offset. This would lead to resistors R1 and R2 of different sizes.
  • resistors R1 and R2 of different sizes.
  • FIG. 1 by way of example by the dashed representation of further alternative or additional slots 3 which are introduced on the opposite end 2.2 of the tape strip 2, further resistance paths with the same or different resistance values can be formed.
  • a plurality of resistive paths having a plurality of resistive elements R1 to R3 can be formed in a single component 1.
  • the assembly effort and material costs are significantly reduced as a result.
  • the slots 3 on both sides of the tape strip 2 symmetrically to each other in the ends 2.1 and 2.2 be introduced.
  • the slots 3 in shape, size and size are largely the same and therefore identical. This allows a simple and secure placement of a printed circuit board not shown, since when placing and placing the device 1 on the circuit board, a 180 ° rotation of the device 1 is possible.
  • the component 1 is designed in a so-called SM D construction. This is the tape strip
  • the surface mount component 1 is shown in a view from the front with multiple bending folds 5.1 to 5.4.
  • the tape strip 2 has a substantially tunnel-shaped, z. B. omega-shaped or U-shaped, middle section 2.3 and end in the longitudinal direction at right angles, for example, outwardly bent ends 2.1 and 2.2.
  • the ends 2.1 and 2.2 may be bent inwards.
  • the web height of the middle section 2.3 depends essentially on the specification for the overall height of the relevant printed circuit board.
  • the component 1 may have a web height of 5 mm.
  • the bent ends 2.1 and 2.2 are flat and flat and serve the surface contact with contact surfaces of a circuit board.
  • the bent end 2.1 is provided with the slot 3, which extends perpendicularly from the bent end at least partially along the longitudinal direction of the tape strip 2.
  • the bent ends 2.1 and 2.2 thus form a plurality of separate connection elements 4.1 to 4.3 for separate contact surfaces of a printed circuit.
  • FIG. 4 shows the electrical component 1 according to FIG. 1 in side view, from the side with the bent and slotted end 2.1.
  • the slot runs
  • the shape, size, dimension and arrangement of the slot 3 depends essentially on the size of the predetermined resistance element R1 to R3.
  • FIG. 5 shows the electrical component 1 according to FIG. 1 in a perspective view.
  • the component 1 is produced by separating or punching out the strip 2 from a strip of a metallic alloy, in particular from an isotan-CuNiMn alloy. It can simultaneously or in a subsequent step, one or more slots 3 end, on or punched on both sides of the tape strip 2 or produced in any other way. Subsequently, the slotted strip strip 2 is repeatedly bent in accordance with the predetermined bending folds 5.1 to 5.4, so that a U-shaped section 2.3 is formed with ends 2.1 and 2.2 bent at right angles therefrom in the manner of a hat brim 5. Alternatively, the ends 2.1 and 2.2 may be bent inwards.
  • the component 1 is thus formed from a metallic material and can be produced in a single process step by simultaneous punching and bending in a stamping and bending tool.
  • the metallic tape strip 2 may, for example, have a thickness of 0.3 mm and a length of 9 mm to 15 mm with a width of 6 mm to 11 mm or another suitable dimension.
  • the low-resistance elements R1 to R3 are for example 4 mOhm to 8 mOhm large.
  • FIG. 6 shows an alternative embodiment for an electrical component 1, which is designed as a multiple shunt in a so-called four-conductor measuring arrangement.
  • seven connecting elements 4.1 to 4.7 are formed by introducing five slots.
  • a first slot 3.1 extends centrally from the one bent end 2.2 on the bending folds 5.1 to 5.4 in the longitudinal direction of the tape strip 2 to the beginning of the opposite end 2.1 and divides both the end 2.2 and the u-0 shaped section 2.3 in two parts, said End 2.1 remains undivided.
  • a further four shorter slots 3.2 are introduced in the two ends 2.1 and 2.2 at the side edges, so that short end strips are formed.
  • connection elements 4.1, 4.3, 4.4 and 4.7 The lateral end strips of the ends 2.1 and 2.2 formed by the short slots 3.2 form connection elements 4.1, 4.3, 4.4 and 4.7. Due to the long slot 3.1 die5 connecting elements 4.2, 4.5 and 4.6 are formed. In this case, the slot 3.1 divides the tape strip 2 into two resistance paths and resistance elements R1 and R2, which have a common connection element 4.2 and two separate connection elements 4.5 and 4.6 as power connection contacts.
  • the connection elements 4.1, 4.3, 4.4 and 4.7 formed by the slots 3.2 form o measuring voltage connection contacts for tapping off the voltage drop resulting from the load current.
  • the electrical component 1 can be designed as a single shunt in a four-conductor measuring arrangement 5, by the first slot 3.1 and at each angled end 2.1, 2.2 each account for one of the slots 3.2 and the tape strip 2 only end is provided with a short slot 3.2 per end side, so that the connection elements 4.5, 4.6 and 4.7 and 4.2 and 4.3 each form a common connection element for a resistance path.
  • FIG. 7 shows by way of example an electrical equivalent circuit diagram for the electrical component 1 as a multiple shunt according to FIG. 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Details Of Resistors (AREA)

Abstract

L'invention concerne un élément électrique (1), notamment une résistance de mesure, comportant au moins un élément de résistance (R1 à R3) et plusieurs éléments de raccordement (4.1 à 4.7), l'élément de résistance (R1 à R3) et les éléments de raccordement (4.1 à 4.7) étant façonnés à partir d'une bande (2) en alliage métallique qui comprend une section médiane (2.3) sensiblement en forme de tunnel et des extrémités (2.1, 2.2) recourbées en angle droit dans le sens longitudinal. Au moins une des extrémités (2.1, 2.2) recourbées est pourvue d'au moins une fente (3, 3.1 à 3.2) qui s'étend perpendiculairement à l'extrémité (2.1, 2.2) recourbée, au moins partiellement dans le sens longitudinal de la bande (2).
PCT/DE2007/001481 2006-08-24 2007-08-22 Élément électrique, notamment résistance de mesure, et procédé de fabrication d'un élément électrique de ce type WO2008022632A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112007002548T DE112007002548A5 (de) 2006-08-24 2007-08-22 Elektrisches Bauelement, insbesondere Messwiderstand sowie Verfahren zur Herstellung eines derartigen elektrischen Bauelements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610039722 DE102006039722A1 (de) 2006-08-24 2006-08-24 Elektrisches Bauelement, insbesondere Messwiderstand sowie Verfahren zur Herstellung eines derartigen elektrischen Bauelements
DE102006039722.3 2006-08-24

Publications (1)

Publication Number Publication Date
WO2008022632A1 true WO2008022632A1 (fr) 2008-02-28

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ID=38779642

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001481 WO2008022632A1 (fr) 2006-08-24 2007-08-22 Élément électrique, notamment résistance de mesure, et procédé de fabrication d'un élément électrique de ce type

Country Status (2)

Country Link
DE (2) DE102006039722A1 (fr)
WO (1) WO2008022632A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5619663B2 (ja) * 2011-03-31 2014-11-05 古河電気工業株式会社 シャント抵抗器の接続端子、及びバッテリー状態検知装置
DE202013011690U1 (de) 2013-04-05 2014-02-26 Isabellenhütte Heusler Gmbh & Co. Kg Messwiderstand
DE102013009726A1 (de) 2013-06-10 2014-12-11 Isabellenhütte Heusler Gmbh & Co. Kg Stanzteil zur Herstellung eines elektrischen Widerstands, Stromsensor und entsprechendes Herstellungsverfahren
EP3664269A1 (fr) * 2018-12-07 2020-06-10 Siemens Aktiengesellschaft Shunt de mesure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310288A1 (de) * 1992-03-30 1993-10-07 Dale Electronics Metall-Widerstand
JPH08115802A (ja) * 1994-10-13 1996-05-07 Fuji Electric Co Ltd 四端子シャント抵抗
US5999085A (en) * 1998-02-13 1999-12-07 Vishay Dale Electronics, Inc. Surface mounted four terminal resistor
EP1313109A2 (fr) * 2001-10-29 2003-05-21 Isabellenhütte Heusler GmbH KG Résistance à montage en surface
EP1492130A2 (fr) * 2003-06-26 2004-12-29 Isabellenhütte Heusler GmbH & Co.KG Dispositif résistif, procédé de fabrication et circuit de mesure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1455903A (en) * 1921-05-09 1923-05-22 Clark William Guy Rheostat
GB288082A (en) * 1927-08-15 1928-04-05 Harry Edgar Campbell Improvements in resistance elements and method of assembling the same
US3252091A (en) * 1961-12-08 1966-05-17 Electro Scient Ind Inc Four-terminal junction for electrical measurments and method of making the same
US5214407A (en) * 1991-11-06 1993-05-25 Hewlett-Packard Company High performance current shunt
DE4243349A1 (de) * 1992-12-21 1994-06-30 Heusler Isabellenhuette Herstellung von Widerständen aus Verbundmaterial

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310288A1 (de) * 1992-03-30 1993-10-07 Dale Electronics Metall-Widerstand
JPH08115802A (ja) * 1994-10-13 1996-05-07 Fuji Electric Co Ltd 四端子シャント抵抗
US5999085A (en) * 1998-02-13 1999-12-07 Vishay Dale Electronics, Inc. Surface mounted four terminal resistor
EP1313109A2 (fr) * 2001-10-29 2003-05-21 Isabellenhütte Heusler GmbH KG Résistance à montage en surface
EP1492130A2 (fr) * 2003-06-26 2004-12-29 Isabellenhütte Heusler GmbH & Co.KG Dispositif résistif, procédé de fabrication et circuit de mesure

Also Published As

Publication number Publication date
DE112007002548A5 (de) 2009-07-30
DE102006039722A1 (de) 2008-02-28

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