EP0238823B1 - Multiple plug for a connector with contact springs arranged in at least two parallel rows - Google Patents

Multiple plug for a connector with contact springs arranged in at least two parallel rows Download PDF

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Publication number
EP0238823B1
EP0238823B1 EP87101760A EP87101760A EP0238823B1 EP 0238823 B1 EP0238823 B1 EP 0238823B1 EP 87101760 A EP87101760 A EP 87101760A EP 87101760 A EP87101760 A EP 87101760A EP 0238823 B1 EP0238823 B1 EP 0238823B1
Authority
EP
European Patent Office
Prior art keywords
connector strip
plug connector
circuit board
contact spring
printed
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.)
Expired - Lifetime
Application number
EP87101760A
Other languages
German (de)
French (fr)
Other versions
EP0238823A3 (en
EP0238823A2 (en
Inventor
Günter Dipl.-Ing. Thom (FH)
Georg Dipl.-Ing.(Fh) Neuber
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT87101760T priority Critical patent/ATE76539T1/en
Publication of EP0238823A2 publication Critical patent/EP0238823A2/en
Publication of EP0238823A3 publication Critical patent/EP0238823A3/en
Application granted granted Critical
Publication of EP0238823B1 publication Critical patent/EP0238823B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
    • H01R12/727—Coupling devices presenting arrays of contacts

Abstract

In a plug connector strip comprising contact springs, the contact springs include terminal lugs which press against a printed circuit board connected to the plug connector strip. For the compensation of tolerances in the thickness of the printed circuit boards, the terminal lugs are fixed only in a clamping point arranged within the plug connector strip and are therefore resiliently seated. The terminal lugs can be bent roughly at a right angle immediately after they emerge from the plug connector strip and can be constructed in a straight-line manner so that they press roughly perpendicularly against corresponding contact pads of the printed circuit board and are therefore particularly suited for a reflow of solder connection.

Description

Die Erfindung betrifft eine Steckverbinderleiste nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a connector strip according to the preamble of patent claim 1.

Aus den US-Patenten 4,418,972 und 3,413,594 sind bereits Steckverbinderleisten mit in mindestens zwei parallelen Reihen angeordneten Kontaktfedern zum elektrischen Anschluß an eine mit der Steckverbinderleiste mechanisch verbundene Leiterplatte bekannt. Bei diesen bekannten Steckverbinderleisten treten Kontaktfederanschlußfahnen schräg, beispielsweise in einem Winkel von 45°, aus der Steckverbinderleiste und führen zu korrespondierenden Kontaktstellen auf der Leiterplatte. Hierdurch ergeben sich für die Anschlußfahnen relativ lange Abmessungen, die zu unerwünschtem Nebensprechen führen und die Übertragungsgüte mindern können.From the US Patents 4,418,972 and 3,413,594 connector strips with contact springs arranged in at least two parallel rows for electrical connection to a circuit board mechanically connected to the connector strip are already known. In these known connector strips, contact spring connection lugs come out of the connector strip at an angle, for example at an angle of 45 °, and lead to corresponding contact points on the printed circuit board. This results in relatively long dimensions for the connecting lugs, which can lead to undesired crosstalk and can reduce the transmission quality.

Es sind auch bereits Steckverbinderleisten bekannt, bei denen Anschlußfahnen von in mehreren parallelen Reihen angeordneten Kontaktfedern gegen die beiden Seiten einer eingeschobenen Leiterplatte drücken (US-Patente 3,663,925 und 3,413,594). Bei diesen bekannten Steckverbinderleisten sind die Kontaktfedern in der Steckverbinderleiste starr gelagert. Die Anschlußfahnen führen schräg von der Steckverbinderleiste zur Leiterplatte und weisen abgewinkelte, auf den beiden Leiterplattenoberflächen aufliegende Verlängerungen auf. Auch bei diesen Anordnungen ergeben sich für die Anschlußfahnen relativ lange, unerwünschte Abmessungen. Im übrigen könnte der Berührungsdruck der schräg gegen die Leiterplattenoberflächen drückenden Anschlußfahnen nicht in allen Fällen Werte erreichen, die für ein Auflöten der Anschlußfahnen auf die Leiterplatte notwendig sind.Connector strips are also already known, in which connection lugs of contact springs arranged in a plurality of parallel rows press against the two sides of an inserted printed circuit board (US Patents 3,663,925 and 3,413,594). In these known connector strips, the contact springs are rigidly mounted in the connector strip. The connection lugs lead obliquely from the connector strip to the printed circuit board and have angled extensions which rest on the two printed circuit board surfaces. These arrangements also result in relatively long, undesirable dimensions for the connecting lugs. Moreover, the contact pressure of the terminal lugs that press obliquely against the circuit board surfaces could not reach values in all cases that are necessary for soldering the terminal lugs onto the circuit board.

Der Erfindung liegt die Aufgabe zugrunde, eine Steckverbinderleiste der eingangs genannten Art so auszubilden, daß eine sichere elektrische Verbindung, beispielsweise mit Hilfe des sogenannten Reflowlötverfahrens, auch bei Toleranzen der Leiterplattendicke gewährleistet ist.The invention has for its object to design a connector strip of the type mentioned so that a secure electrical connection, for example with the help of the so-called reflow soldering method, is guaranteed even with tolerances of the circuit board thickness.

Die Aufgabe wird erfindungsgemäß für eine Steckverbinderleiste der oben genannten Art mit den Merkmalen dem kennzeichnenden Teils von Patentanspruch 1 gelöst.The object is achieved for a connector strip of the type mentioned above with the features of the characterizing part of claim 1.

Die Erfindung ist mit dem Vorteil verbunden, daß bei Verwendung von Leiterplatten mit unterschiedlichen Plattendicken der für die elektrische Verbindung, beispielsweise durch Reflowlöten, notwendige Anpreßdruck stets gebildet wird. Die Erfindung ist weiterhin mit dem Vorteil verbunden, daß die Kontaktierung der Anschlußfahnen auf der Leiterplatte wenig Raum verbraucht.The invention is associated with the advantage that when using printed circuit boards with different board thicknesses, the contact pressure required for the electrical connection, for example by reflow soldering, is always formed. The invention is also associated with the advantage that the contacting of the terminal lugs on the circuit board takes up little space.

Die Anschlußfahnen weisen relativ kurze Abmessungen auf, so daß sich die erfindungsgemäße Steckverbinderleiste durch günstige Werte für Nebensprechen und Übertragungsgüte auszeichnet.The connection lugs have relatively short dimensions, so that the connector strip according to the invention is distinguished by favorable values for crosstalk and transmission quality.

Die Erfindung wird nun anhand der Zweichnungen näher erläutert.The invention will now be explained in more detail with reference to the drawings.

Es zeigen

FIG 1
die der Leiterplatte zugewandte Seite der Steckverhinderleiste mit den Kontaktfederanschlußfahnen;
FIG 2
einen Querschnit durch die Anordnung nach FIG 1;
FIG 3
einen Ausschnitt der mit der Steckverbinderleiste verbindbaren Leiterplatte.
Show it
FIG. 1
the side of the plug-in prevention strip facing the printed circuit board with the contact spring connection lugs;
FIG 2
a cross section through the arrangement of FIG 1;
FIG 3
a section of the circuit board connectable with the connector strip.

In FIG 1 ist eine Steckverbinderleiste 1 und eine mit Ihr verbundene Leiterplatte 2 dargestellt. Die Steckverbinderleiste 1 weist mehrere parallele Reihen mit Kontaktfederkammern 11 auf, von denen einige Kontaktfedern enthalten, die auf der hier dargestellten Seite der Steckverbinderleiste 1 zu Anschlußfahnen 12 ausgebildet sind.1 shows a connector strip 1 and a circuit board 2 connected to it. The connector strip 1 has a plurality of parallel rows with contact spring chambers 11, some of which contain contact springs, which are formed on the side of the connector strip 1 shown here to form terminal lugs 12.

Die Leiterplatte 2 ist zwischen den Anschlußfahnen verschiedener Kontaktfederreihen eingeschoben. Die Leiterplatte 2 kann dabei in der Mittelebene der Steckverbinderleiste 1 oder, wie hier in FIG 1 dargestellt, asymetrisch angeordnet sein.The circuit board 2 is inserted between the lugs of different rows of contact springs. The circuit board 2 can be arranged asymmetrically in the center plane of the connector strip 1 or, as shown here in FIG. 1.

Die Kontaktfedern bzw. die in den Kammern 11 angeordneten Anschlußfahnen 12 sind wie anhand von FIG 2 noch erläutert wird in den Kammern 11 nicht durchgehend starr gelagert, sondern sind nur in einem in den Kammern 11, also innerhalb der Steckverbinderleiste angeordneten Einspannpunkt fixiert. Hierdurch ergibt sich für die Anschlußfahnen 12 von dem innerhalb der Kammern 11 angeordneten Einspannpunkt bis zu ihrem freien Ende eine federnde Lagerung.The contact springs or the connecting lugs 12 arranged in the chambers 11 are, as will be explained with reference to FIG. 2, are not continuously rigidly supported in the chambers 11, but are only fixed in a clamping point arranged in the chambers 11, that is to say within the connector strip. This results in a resilient mounting for the connecting lugs 12 from the clamping point arranged within the chambers 11 to their free end.

Die Kontaktanschlußfahren 12 sind unmittelbar nach ihrem Austritt aus der Steckverbinderleiste 1 in etwa rechtwinklig abgebogen und verlaufen in etwa parallel zu der der Leiterplatte zugewandten Seite der Steckverbinderleiste. Sie sind zwischen der Steckverbinderleiste 1 und den korrespondierenden Kontaktstellen 21 der Leiterplatte 2 gradlinig ausgeformt. Die Kontaktfederanschlußfahnen 12 drücken somit in etwa senkrecht auf die korrespondierenden Kontaktstellen 21 der Leiterplatte 2.The contact connection driving 12 are bent approximately at right angles immediately after they emerge from the connector strip 1 and run approximately parallel to the the side of the connector strip facing the circuit board. They are formed in a straight line between the connector strip 1 and the corresponding contact points 21 of the printed circuit board 2. The contact spring terminal lugs 12 thus press approximately perpendicularly on the corresponding contact points 21 of the printed circuit board 2.

Wie FIG 1 zeigt, sind die Anschlußfahnen 12 in der Weise beschnitten, daß die Anschlußfahnen aller auf jeweils einer Seite der Leiterplatte 2 angeordneter Kontaktfedern unmittelbar nebeneinander auf die korrespondierenden Kontaktstellen 21 der Leiterplatte 2 federnd drücken. Diese Anschlußfahnen 12 liegen in einer gemeinsamen Ebene parallel zu der der Leiterplatte 2 zugewandten Seite der Steckverbindungsleiste 1.As FIG 1 shows, the terminal lugs 12 are trimmed in such a way that the terminal lugs of all the contact springs arranged on one side of the printed circuit board 2 each directly spring against the corresponding contact points 21 of the printed circuit board 2. These terminal lugs 12 lie in a common plane parallel to the side of the connector strip 1 facing the printed circuit board 2.

Diese Anordnung zeichnet sich durch kurze Abmessungen und durch genügend hohe, durch die senkrecht auftreffenden Anschlußfahnen 12 bewirkte Werte für den Anpreßdruck aus, die eine sichere Kontaktierung der Anschlußfahnen 12 mit den korrespondierenden Kontaktstellen 21, insbesondere nach dem sogenannten Reflowlötverfahren ermöglichen.This arrangement is characterized by short dimensions and by sufficiently high values for the contact pressure caused by the vertically incident connecting lugs 12, which enable reliable contacting of the connecting lugs 12 with the corresponding contact points 21, in particular according to the so-called reflow soldering method.

FIG 2 veranschaulicht sowohl die Lagerung der Kontaktfedern bzw. der Anschlußfahnen 12 in den Kammern 11 sowie das Aufdrücken der Anschlußfahnen 12 auf die Kontaktstellen 21 der Leiterplatte 2. Die Anschlußfahnen 12 und die Kontaktstellen 21 werden, wie schon zuvor angesprochen, beispielsweise nach dem sogenannten Reflowlötverfahren miteinander leitend verbunden. Wird anstelle der in FIG 2 dargestellten Leiterplatte 2 eine andere Leiterplatte 2 mit größerer Plattendicke zwischen die Kontaktfederanschlußfahnen 12 geschoben, so bewegen sich die im inneren der Kammern 11 federnd gelagerten Anschlußfahnen 12 um die entsprechende Strecke in Richtung der Kammern 11. Zugleich vergrößert sich der von den Anschlußfahnen 11 ausgeübte Druck auf die Leiterplatte 2.2 illustrates both the mounting of the contact springs or the connecting lugs 12 in the chambers 11 and the pressing of the connecting lugs 12 onto the contact points 21 of the printed circuit board 2. The connecting lugs 12 and the contact points 21 are, as already mentioned, for example by the so-called reflow soldering method connected to each other. If, instead of the printed circuit board 2 shown in FIG. 2, another printed circuit board 2 with a greater board thickness is pushed between the contact spring connection lugs 12, the connection lugs 12 which are resiliently mounted in the interior of the chambers 11 move by the corresponding distance in the direction of the chambers 11. At the same time, the pressure exerted by the connecting lugs 11 on the printed circuit board 2 increases.

Die Kontaktfederanschlußfahnen 12 weisen gegenüber ihrem zwischen der Steckverbinderleiste 1 und den Kontaktstellen 21 angeordneten Teil abgebogene Verlängerungen 121 auf. Diese können auf der entsprechenden Oberfläche der Leiterplatte 2 aufliegen bzw. maximal um 90° gegenüber dieser Oberfläche der Leiterplatte 2 abgebogen seien. Die Verlängerungen 121 aller aus einer Kontaktfederreihe austretender Kontaktfederanschlußfahnen 12 sind im gleichen Winkel gegenüber der benachbarten Oberfläche der Leiterplatte 2 abgebogen. Als besonders vorteilhaft haben sich Winkel zwischen 30° und 45° herausgestellt.The contact spring connection lugs 12 have bent extensions 121 with respect to their part arranged between the connector strip 1 and the contact points 21. These can rest on the corresponding surface of the printed circuit board 2 or be bent at most by 90 ° with respect to this surface of the printed circuit board 2. The extensions 121 of all contact spring connecting lugs 12 emerging from a row of contact springs are bent at the same angle with respect to the adjacent surface of the printed circuit board 2. Angles between 30 ° and 45 ° have been found to be particularly advantageous.

FIG 3 zeigt einen Ausschnitt der Leiterplatte 2 mit Kontaktstellen 21, wobei, wie in FIG 1 dargestellt, beispielsweise drei Kontaktfederreihen mit Anschlußfahnen 12 auf der einen Seite der Leiterplatte und beispielsweise zwei Reihen Kontaktfedern mit Anschlußfahnen 12 gegen die andere Seite der Leiterplatte 2 drücken und beispielsweise nach dem sogenannten Reflowlötverfahren miteinander leitend verbunden sind. Die Kontaktstellen 21 sind also, wie auch schon die FIG 1 und 2 zeigen, auf beiden Seiten der Leiterplatte 2 angeordnet und setzen sich zu Leiterbahnen 22 fort. Die Kontaktstellen 21 haben, wie FIG 3 zeigt, eine längliche, rechteckige Form, die aber vorteilhafterweise relativ kleinflächig und damit platzsparend sein kann.3 shows a section of the circuit board 2 with contact points 21, wherein, as shown in FIG. 1, for example three rows of contact springs with terminal lugs 12 on one side of the circuit board and for example two rows of contact springs with terminal lugs 12 press against the other side of the circuit board 2 and for example are conductively connected to one another by the so-called reflow soldering method. The contact points 21 are, as already shown in FIGS 1 and 2, arranged on both sides of the circuit board 2 and continue to conductors 22. As shown in FIG. 3, the contact points 21 have an elongated, rectangular shape, which, however, can advantageously be relatively small in area and thus save space.

Claims (9)

  1. Plug connector strip (1) having contact springs arranged in at least two parallel rows for electrical connection to a printed-circuit board (2) which is mechanically connected to the plug connector strip (1), is arranged between rows of contact springs and has contact points, consisting of electrically conductive material, on both its sides, against which there press in a sprung manner corresponding contact spring terminal tabs (12), emerging from the side of the plug connector strip (1) facing the printed-circuit board (2), characterised in that the plug connector strip has contact spring chambers (11), and in that in each case one terminal tab (12), which is fixed in a clamping point, is supported in a sprung manner in the chamber interior.
  2. Plug connector strip according to Claim 1, characterised in that the contact spring terminal tabs (12) of at least one contact spring row are bent approximately at right angles directly after they emerge from the plug connector strip (1).
  3. Plug connector strip according to one of the preceding claims, characterised in that the contact spring terminal tabs (12) are formed in a straight-lined manner between the plug connector strip (1) and the corresponding contact points of the printed-circuit board (2).
  4. Plug connector strip according to Claim 2, characterised in that the contact spring terminal tabs (12) press approximately vertically onto the corresponding contact points of the printed-circuit board (2).
  5. Plug connector strip according to one of the preceding claims, characterised in that the contact spring terminal tabs (12) have extensions (121) which are bent with respect to their part which is arranged between the plug connector strip (1) and the contact points.
  6. Plug connector strip according to Claim 5, characterised in that the extensions (121) of all the contact spring terminal tabs (12) emerging from a row of contact springs are bent at the same angle with respect to the adjacent surface of the printed-circuit board (2).
  7. Plug connector strip according to Claim 5 or 6, characterised in that the extensions (121) of the contact spring terminal tabs (12) rest on the surface of the printed-circuit board (2).
  8. Plug connector strip according to Claim 5 or 6, characterised in that the extensions (121) of the contact spring terminal tabs (12) are bent through a maximum of 90° with respect to the adjacent surface of the printed-circuit board (2).
  9. Plug connector strip according to Claim 8, characterised in that the extensions (121) of the contact spring terminal tabs (12) are bent at an angle of between 30° and 45° with respect to the adjacent surface of the printed-circuit board (2).
EP87101760A 1986-02-27 1987-02-09 Multiple plug for a connector with contact springs arranged in at least two parallel rows Expired - Lifetime EP0238823B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101760T ATE76539T1 (en) 1986-02-27 1987-02-09 CONNECTOR BAR WITH CONTACT SPRINGS ARRANGED IN AT LEAST TWO PARALLEL ROWS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3606387 1986-02-27
DE3606387 1986-02-27

Publications (3)

Publication Number Publication Date
EP0238823A2 EP0238823A2 (en) 1987-09-30
EP0238823A3 EP0238823A3 (en) 1989-12-13
EP0238823B1 true EP0238823B1 (en) 1992-05-20

Family

ID=6295085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101760A Expired - Lifetime EP0238823B1 (en) 1986-02-27 1987-02-09 Multiple plug for a connector with contact springs arranged in at least two parallel rows

Country Status (4)

Country Link
US (1) US4820173A (en)
EP (1) EP0238823B1 (en)
AT (1) ATE76539T1 (en)
DE (1) DE3779157D1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992052A (en) * 1988-02-01 1991-02-12 E. I. Du Pont De Nemours And Company Modular connector system with high contact element density
US5186633A (en) * 1991-09-03 1993-02-16 Amp Incorporated Surface mount electrical connector with interleaved solder tails
US5342208A (en) * 1992-02-19 1994-08-30 Nec Corporation Package connector apparatus
US5292265A (en) * 1993-03-02 1994-03-08 Molex Incorporated Edge mounted circuit board electrical connector
EP0741918B1 (en) * 1994-01-25 2003-01-08 North American Specialties Corp. Smart card connector
US5655931A (en) * 1995-10-02 1997-08-12 Framatome Connectors Usa Inc. Electrical connector with combined electrical contact and housing mount assembly
US6210236B1 (en) * 1999-09-17 2001-04-03 Chin-Mao Kan Casette and two-layer type of wire-connection chassis
DE202012002352U1 (en) * 2011-05-17 2012-04-18 Erni Electronics Gmbh Arrangement of plug connector and circuit board

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413594A (en) * 1966-08-02 1968-11-26 Amp Inc Edge connector
US3663925A (en) * 1970-05-20 1972-05-16 Us Navy Electrical connector
US4418972A (en) * 1982-02-01 1983-12-06 Burroughs Corporation Electrical connector for printed wiring board
US4505035A (en) * 1983-04-11 1985-03-19 At&T Technologies, Inc. Methods of aligning and mounting a plurality of electrical leads to a plurality of terminals
US4530553A (en) * 1984-03-15 1985-07-23 Northern Telecom Limited Minimum insertion force connector
DE3437526A1 (en) * 1984-10-12 1986-04-17 Allied Corp., Morristown, N.J. CONNECTOR FOR SURFACE MOUNTING
US4695106A (en) * 1985-05-13 1987-09-22 Amp Incorporated Surface mount, miniature connector
US4660911A (en) * 1985-12-06 1987-04-28 Amp Incorporated Surface mount connector

Also Published As

Publication number Publication date
EP0238823A3 (en) 1989-12-13
ATE76539T1 (en) 1992-06-15
US4820173A (en) 1989-04-11
DE3779157D1 (en) 1992-06-25
EP0238823A2 (en) 1987-09-30

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