EP2880717B1 - Contact à ajustement serré - Google Patents

Contact à ajustement serré Download PDF

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Publication number
EP2880717B1
EP2880717B1 EP13744478.2A EP13744478A EP2880717B1 EP 2880717 B1 EP2880717 B1 EP 2880717B1 EP 13744478 A EP13744478 A EP 13744478A EP 2880717 B1 EP2880717 B1 EP 2880717B1
Authority
EP
European Patent Office
Prior art keywords
press
pin
circuit carrier
deflection
zone
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.)
Active
Application number
EP13744478.2A
Other languages
German (de)
English (en)
Other versions
EP2880717A1 (fr
Inventor
Michael Guyenot
Friedhelm Guenter
Sabrina RATHGEBER
Marc Fischer
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 EP2880717A1 publication Critical patent/EP2880717A1/fr
Application granted granted Critical
Publication of EP2880717B1 publication Critical patent/EP2880717B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
    • Y10T29/49139—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture

Definitions

  • DE 10 2009 042 385 A1 relates to a connector device for electrically connecting a conductor to a circuit board by directly plugging the connector device into a contact hole of the circuit board in a contact opening of the circuit board.
  • the plug device has a fastening area and a transmission area for transmitting a current from the conductor to the printed circuit board.
  • the transmission area or the entire plug device can be made of aluminum. Automotive applications are mentioned as the intended use for the plug device, for example high mechanical loads and high currents being transmitted.
  • the connection can be a press-fit connection or a press-in connection, which is used or clamped in a bus bar for printed circuits or a printed circuit board and is electrically connected to a circuit board.
  • electricity is transferred from a battery or electrical signals are transmitted without a solder joint.
  • the connector is made of a conductive material, such as an aluminum alloy, and is formed by stamping and pressing the conductive material.
  • the connection provides the electrical energy for the bus bar of a circuit in an electrical connector box, for example a junction box or a fuse box, and controls electronic elements, such as a fuse or a relay.
  • the bus bar can be provided in an electrical connection box, which is arranged in a machine room or under a vehicle interior.
  • DE 10 2009 008 118 A1 discloses a method for producing an electrical contact on a printed circuit board, the contact via a non-positive connection between a press-in pin, which has a press-in zone and a contact area and a metallized printed circuit board opening is produced.
  • the entire press-in pin or only the press-in zone can be coated with aluminum.
  • the disclosure DE102006031839 A1 shows a contact element in which flat parts made of different materials are integrally connected.
  • the disclosure DE4242837 A1 discloses the pressing in of a press-in pin or a press-in spring into a printed circuit board by means of a press-in tool in the form of a sonotrode, by means of which the force is introduced during the press-in process by applying vibrations to the press-in pin or the press-in spring.
  • the resilient pin contains a press-fit area with elasticity, which is secured in a press fit within a through opening in a printed circuit board due to an elastic deformation of the press-fit area against being pulled out.
  • a press-in pin for a circuit carrier and its production method are proposed.
  • the circuit carrier has at least one press-fit zone can be contacted on the conductor tracks.
  • a press-in pin other than the press-in pin proposed according to the invention can be made of solid aluminum material or can also be designed as a press-in pin made of solid aluminum material, which is provided with a coating, in particular a roll-clad copper-clad coating.
  • the solid aluminum material can be coated with a galvanic coating. This galvanic coating can be NiAu or Sn, for example.
  • the press-in pin contains aluminum material sections.
  • it is manufactured as a "sandwich" component and comprises, in sequential order, for example a resilient area made of copper material, which is pressed into the corresponding press-in zone in the circuit carrier.
  • This first section of the press-in pin is followed by an aluminum section, within which a deflection zone of the press-in pin lies.
  • a deflection zone means such a zone of the press-in pin, within which the press-in pin experiences, for example, a 90 ° deflection and changes from a vertical course to a horizontal course, for example.
  • the deflection of the press-in pin can also assume other angular profiles, depending on requirements and application.
  • a line section which is made of Cu or a Cu alloy, can in turn be connected to this AI section which realizes the deflection of the press-in pin.
  • the press-in pin represents a hybrid component.
  • a press-in pin not proposed according to the invention, it can be made of solid Al material.
  • a Cu cladding coating can then be applied to the outer surface of this Al material.
  • This Cu cladding coating is preferably applied by roll cladding.
  • a press-in pin is obtained, the mechanical properties of which can essentially be characterized by the Al material.
  • the resilient region that is to say the press-in region of the press-in pin into the circuit carrier, is formed by two cheeks which are separated from one another by an opening are separated. Due to the elasticity of the cheeks, these can be mounted, for example by means of ultrasound support, in the corresponding press-in zones of the circuit carrier, so that oxides can be better separated from the aluminum material.
  • the solution proposed according to the invention is characterized in particular by the fact that, by using aluminum instead of copper or copper alloys, the aluminum material has a lower modulus of elasticity and thus a lower one Has stiffness as Cu. With the same geometry, better values with regard to the modulus of elasticity and the stiffness are obtained compared to copper material. This in turn means that thermomechanically induced voltages due to temperature changes can be better reduced.
  • the press-in pin proposed according to the invention can still be produced from strip-like material, which has the advantage that tools or proven manufacturing processes do not have to be changed. In order to reliably remove oxides, the press-in pin proposed according to the invention in its three design variants outlined above with ultrasound support can be installed in the corresponding press-in zones of the circuit carrier.
  • electrical contacting or a plug connection may require a surface that is resistant to friction corrosion.
  • a surface can be achieved, for example, in terms of production engineering in that the complete belts, i.e. the raw material or partially already punched-in press-in pins can be refined by means of a galvanically applied coating.
  • the galvanic coating can be, for example, NiAu, Sn, NiPdAu and the like.
  • the robustness or the durability of an electrical connection made by cold contacting can be considerably improved by a plug connection between the periphery, component and a circuit carrier.
  • the embodiment variants according to the present invention can be used to replace or expand an existing press-in pin portfolio in electronic controls.
  • the solution proposed according to the invention can be used as a media-resistant press-in technique, e.g. required for use in vehicle transmissions, use can be made, a cost advantage can be achieved by using aluminum instead of copper.
  • the hybrid shape of the press-in pins enables an optimum relationship to be achieved between the mechanically required stability on the one hand and the electrical conductivity required for the application.
  • Figure 1 shows a circuit carrier 10, wherein conductor tracks 30 are embedded in the carrier substrate of the circuit carrier 10.
  • the conductor tracks 30 running within the circuit carrier 10 are connected to contact surfaces 32.
  • the contact surfaces 32 in turn are surrounded by contact surfaces 28, which complement a press-in opening 12 in the circuit carrier 10.
  • the press-in opening 12 extends continuously through the circuit carrier 10 from its top to its bottom.
  • the press-in opening 12 represents a press-in zone 14, in which a press-in pin 16 is pressed.
  • the press-in pin 16 as shown in Figure 1 it is one which is made entirely of aluminum material 36.
  • the continuous press-in pin 16 made of solid aluminum material is pressed into the press-in zone 14 of the circuit carrier 10 with the aid of ultrasound.
  • the ultrasound support can reliably remove oxides from the aluminum material 36 of the continuous press-in pin 34.
  • the press-in of the press-in pin 16 according to the first Design variant takes place using cold contacting technology.
  • the press-in pin has a 90 ° deflection 18. This is how Figure 1 can be seen, formed from solid aluminum material 36 of the press-in pin 16. At the end of the press-in pin 16, which projects into the press-in opening 12 of the press-in zone 14, the press-in pin 16 has a resilient region 20.
  • the resilient region 20 is defined in the aluminum material 36 by a first cheek 22 and a second cheek 24. Between the cheeks 22 and 24 there is an opening 26.
  • the two cheeks 22 and 24 have elastic properties and contact the contact surfaces 32 after assembly of the press-in pin 16 in the press-in opening 12 Figure 1
  • the press-in pin shown made of solid aluminum material 36 can have a complete or partial electroplating coating. Suitable surfaces are, for example, NiAu and Sn.
  • Figure 2 shows an embodiment variant of the press-in pin proposed according to the invention, which is designed as a hybrid or sandwich component.
  • this press-in pin 16 is one which has a Cu spring area 38, which is followed by a deflection area 40 made of solid aluminum material, which in turn merges into a Cu line section 42.
  • the geometry of the press-in pin as shown in Figure 2 The embodiment variant of the solution proposed according to the invention is identical to the geometry of the press-in pin 16 as shown in FIG Figure 1 , which is made of solid aluminum 36.
  • the deflection 18 according to the embodiment variant of the press-in pin 16 also lies in the aluminum section 40 of the press-in pin 16.
  • the circuit carrier 10 according to the embodiment variant Figure 2 is analogous to the circuit carrier 10 according to Figure 1 built up.
  • Embedded conductor tracks 30 run in the carrier substrate of the circuit carrier 10 and are connected to contact surfaces 32 which are enclosed by contact surfaces 28.
  • the contact surfaces 28 limit the press-in opening 12 which lies within the press-in zone 14 of the circuit carrier 10.
  • Analogous to the representation according to Figure 1 the press-in opening 12 extends completely through the circuit carrier 10, ie from the top to the bottom thereof.
  • the Cu spring area 38 is not made of aluminum but of copper.
  • the aluminum deflection area 40 as shown in FIG Figure 2 has the advantage that in the area of the deflection 18 there is a lower modulus of elasticity and thus a lower rigidity with the same geometry compared to copper material. Thereby, thermomechanically induced voltages due to temperature changes can also be configured in the configuration of the press-in pin 16 according to the second embodiment Figure 2 be broken down better.
  • Figure 3 shows a further press-in pins not proposed according to the invention made of solid aluminum material with a roll-clad coating.
  • the press-in pin 16 shown there is also essentially made of Al base material 36, but is provided over its entire surface with a jacket coating 48, which can be roll-plated, for example, from copper.
  • the mechanical properties of the press-in pin 16 according to the in Figure 3 reproduced embodiment variants are essentially defined by the aluminum material 36, 46.
  • the geometry of the press-in pin 16 is essentially identical to the geometries of the press-in pin 16 according to the embodiment variants described above Figure 1 and 2 .
  • a resilient area 20 of the press-in pin 16 is formed, which is provided in the area of the opening 26 on the inside and on the outside of the first cheek 22 and the second cheek 24 with a jacket coating 48, for example made of copper.
  • the circuit carrier 10 according to Figure 3 comprises individual conductor tracks 30 embedded in the interior thereof, which are electrically connected to contact surfaces 32, which in turn are surrounded by contact surfaces 28, which delimit the press-in opening 12 of the press-in zone 14 in the circuit carrier 10.
  • press-in pins 16 are mounted with ultrasound support in the press-in opening 12 of the press-in zone 14. Through the use of ultrasound otherwise, when the press-fit pins 16 are cold-installed, oxides remaining on the aluminum material can be reliably removed.
  • press-in pins 16 All design variants of the press-in pins 16 according to the Figures 1 to 3 has in common that the production of the press-in pins 16 can take place as before from band-shaped material. This offers the advantage that tools and a proven manufacturing process can be kept unchanged.
  • a plug-in connection requires a friction-corrosion-resistant surface
  • the above-mentioned band-shaped material or press-in pins that have already been partially punched out can be refined by means of a galvanically applied coating.
  • friction corrosion-resistant surfaces are, for example, NiAu, Sn, NiPdAu, to name a few.
  • connection point can be one that represents a plug connection between a periphery and a component on the one hand and on the other hand with the circuit carrier 10.
  • the solution proposed according to the invention can advantageously be used to supplement an existing press-in pin portfolio in electronic controls.
  • the solution proposed according to the invention can be used in particular in the context of a press-in technology designed to be media-resistant, as is required, for example, when used in transmission controls of vehicles.
  • the substitute material aluminum replaces the copper previously used, which means that material costs can be saved to a not inconsiderable extent, since aluminum is a cheaper basic material compared to copper.
  • the solution proposed according to the invention can be used to dampen or reduce thermomechanically induced loads, so that an electrical plug connection which is produced by means of cold contacting technology is considerably improved in terms of its durability. It would also be conceivable to implement further layer sequences, ie a layer composite of Cu, Al, Cu and Al. Instead of Cu and Al, other material combinations would also be conceivable in the present context for the production of hybrid press-in pins, for example Ni, Cu and Au.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Claims (6)

  1. Broche à enfoncer (16) pour un porte-circuit (10) comprenant au moins une zone d'enfoncement (14), au niveau de laquelle un contact peut être établi avec des pistes conductrices (30) et comprenant un coudage (18), caractérisée en ce que la broche à enfoncer (16) comporte, dans un ordre séquentiel, une zone de ressort en Cu (38), une zone de coudage en Al (40) et une portion de ligne en Cu (42), le coudage (18) se trouvant dans la zone de coudage en Al (40) à l'intérieur de laquelle la broche à enfoncer (16) subit un changement de direction de 90°.
  2. Broche à enfoncer selon la revendication précédente, caractérisée en ce que la broche à enfoncer (16) possède une zone flexible (20) qui est formée par une première joue (22) et une deuxième joue (24).
  3. Arrangement de contact électrique, comprenant une broche à enfoncer (16) selon l'une des revendications 1 et 2 et un porte-circuit (10) comprenant au moins une zone d'enfoncement (14), la broche à enfoncer (16) étant enfoncée dans une ouverture d'enfoncement (12) du porte-circuit (10).
  4. Arrangement de contact électrique selon la revendication 3, comprenant au moins une broche à enfoncer selon l'une des revendications 1 et 2 et un porte-circuit (10) comprenant au moins une zone d'enfoncement (14), au niveau de laquelle un contact peut être établi avec des pistes conductrices (30), caractérisé en ce que des broches à enfoncer (16) sont enfoncées avec assistance par ultrasons dans des ouvertures d'enfoncement (12) du porte-circuit (10).
  5. Procédé de fabrication d'un arrangement de contact électrique, comprenant au moins une broche à enfoncer selon l'une des revendications 1 et 2, caractérisé en ce que des broches à enfoncer (16) sont découpées à la matrice à partir d'un matériau en forme de bande.
  6. Procédé selon la revendication 5, caractérisé en ce que le matériau en forme de bande ou les broches à enfoncer (16) découpées à la matrice sont pourvus d'un revêtement résistant à la corrosion de contact par une enduction galvanique.
EP13744478.2A 2012-08-03 2013-07-24 Contact à ajustement serré Active EP2880717B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012213812.9A DE102012213812A1 (de) 2012-08-03 2012-08-03 Einpresskontaktierung
PCT/EP2013/065590 WO2014019906A1 (fr) 2012-08-03 2013-07-24 Contact électrique inséré par compression

Publications (2)

Publication Number Publication Date
EP2880717A1 EP2880717A1 (fr) 2015-06-10
EP2880717B1 true EP2880717B1 (fr) 2020-04-22

Family

ID=48914243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13744478.2A Active EP2880717B1 (fr) 2012-08-03 2013-07-24 Contact à ajustement serré

Country Status (5)

Country Link
US (1) US9455502B2 (fr)
EP (1) EP2880717B1 (fr)
CN (1) CN104521068B (fr)
DE (1) DE102012213812A1 (fr)
WO (1) WO2014019906A1 (fr)

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DE102014208101A1 (de) 2014-04-29 2015-10-29 Robert Bosch Gmbh Elektrische Verbindungsanordnung für die elektrische Verbindung von Leiterplatten untereinander mittels lötfreier Einpresskontaktierung
DE102014208226B4 (de) * 2014-04-30 2020-07-23 Conti Temic Microelectronic Gmbh Kontaktelement, Schaltungsanordnung mit einem solchen Kontaktelement und Kupferband zur Herstellung einer Vielzahl von Kontaktelementen
DE102014109036A1 (de) * 2014-06-27 2015-12-31 Valeo Schalter Und Sensoren Gmbh Elektrische Verbindungsvorrichtung mit zwei Bereichen für eine Leiterplatte, elektronisches Gerät, Kraftfahrzeug und Herstellungsverfahren
DE102015223850A1 (de) 2015-12-01 2017-06-01 Robert Bosch Gmbh Verfahren zur Herstellung einer Vorrichtung zur Erfassung mindestens einer Eigenschaft eines fluiden Mediums in einem Messraum
DE102017206217A1 (de) * 2017-04-11 2018-10-11 Robert Bosch Gmbh Elektrische Kontaktanordnung
DE102017108640B4 (de) 2017-04-24 2022-11-10 Borgwarner Ludwigsburg Gmbh Elektronikmodul
DE102017006406B4 (de) * 2017-07-07 2021-04-29 Tdk-Micronas Gmbh Gehäustes IC-Bauelement
DE102018203800B4 (de) * 2018-03-13 2019-11-21 Te Connectivity Germany Gmbh Kontaktstift und Anordnung zur Verbindung von elektrischen Leitern aus Kupfer und Aluminium
US11456548B2 (en) 2019-09-18 2022-09-27 International Business Machines Corporation Reliability enhancement of press fit connectors
DE102022210287A1 (de) 2022-09-28 2024-03-28 Robert Bosch Gesellschaft mit beschränkter Haftung Verbindungsanordnung und Verfahren zur Ausbildung einer Verbindungsanordnung

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DE4242837A1 (de) * 1992-12-17 1994-06-23 Siemens Ag Verfahren und Vorrichtung zum Einpressen von metallischen Elementen in Trägerteile
DE102006017587A1 (de) * 2005-04-28 2006-11-09 Tyco Electronics Amp K.K., Kawasaki Federnd nachgiebiger Stift und elektrisches Bauteil zur Verwendung mit diesem federnd nachgiebigen Stift
US20070259540A1 (en) * 2006-05-08 2007-11-08 Tyco Electronics Corporation Grounded metal substrate in a socket and method of making

Also Published As

Publication number Publication date
US9455502B2 (en) 2016-09-27
US20150214636A1 (en) 2015-07-30
DE102012213812A1 (de) 2014-02-06
CN104521068A (zh) 2015-04-15
WO2014019906A1 (fr) 2014-02-06
EP2880717A1 (fr) 2015-06-10
CN104521068B (zh) 2017-07-11

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