WO1998027623A2 - Plug-in connection for connecting modular printed circuit boards to a wiring backplane - Google Patents

Plug-in connection for connecting modular printed circuit boards to a wiring backplane Download PDF

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Publication number
WO1998027623A2
WO1998027623A2 PCT/DE1997/002913 DE9702913W WO9827623A2 WO 1998027623 A2 WO1998027623 A2 WO 1998027623A2 DE 9702913 W DE9702913 W DE 9702913W WO 9827623 A2 WO9827623 A2 WO 9827623A2
Authority
WO
WIPO (PCT)
Prior art keywords
plug connection
rear wall
circuit board
printed circuit
knives
Prior art date
Application number
PCT/DE1997/002913
Other languages
German (de)
French (fr)
Other versions
WO1998027623A3 (en
Inventor
Roland Plabst
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1998027623A2 publication Critical patent/WO1998027623A2/en
Publication of WO1998027623A3 publication Critical patent/WO1998027623A3/en

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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
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/716—Coupling device provided on the PCB
    • 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
    • H01R12/724—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 containing contact members forming a right angle
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting

Definitions

  • the present invention relates to a plug-in connection for connecting assembly circuit boards to a backplane wiring board, in which the knives are arranged on the assembly board side and the contact springs on the backplane wiring side.
  • Such a plug connection, in which the knives are arranged on the assembly circuit board side, is known, for example, from DE 88 14 942 UI.
  • the object of the present invention is to provide a plug connection of the type mentioned at the outset, which is distinguished by a simple structure and is easy to produce.
  • the knives can be fastened to the assembly circuit board by means of SMD technology become.
  • This consistent application of SMD technology results in great potential for cost savings. So z. B. when using SMD technology on the assembly side, complete operations and manufacturing facilities for press-fit technology, wave soldering, etc. are eliminated.
  • a connector is known, the knives of which are encapsulated in plastic in a male connector body and are applied to a circuit board by means of SMD technology.
  • the male connector body has the construction described above as disadvantageous.
  • FIG. 1 shows a cross section through a plug connection according to the invention
  • FIG. 2 shows a section above the rear wall wiring board corresponding to FIG. 1,
  • FIG. 3 cross sections through certain parts of the plug connection according to the invention
  • FIG. 4 shows a section above the rear wall wiring board corresponding to FIG. 3,
  • Figure 6 is a schematic plan view of an assembly circuit board with a male connector according to the present invention.
  • Figure 7 is a schematic front view of a male connector of the connector according to the invention.
  • the knife bar is assigned to the assembly circuit board 1.
  • the knives 4 are held in a molded plastic body 3 in a male connector body 3, the male connector body 3 being arranged perpendicular to the component circuit board 1.
  • the extensions of the individual knives are soldered on the assembly side using SMT technology.
  • the fact that the knives are arranged on the assembly side eliminates the problem with the grease coating of the springs when using SMT technology.
  • the male connector body 3 can be divided into modules, each module being assigned a certain number of grid points of a grid in which the knives 4 are arranged. This modular division is z. B. shown in Figures 6 and 7.
  • the contact springs consist of rotating parts bent from spring sheet metal with two contact legs and two retaining lugs 7 and are inserted into bores 6 in the rear wall wiring plate 2. This means that the contact springs 5 can be greased be inserted directly into the holes 6 of the rear wall wiring board 2. This eliminates the plastic part of the female connector body and thus saves a further assembly process.
  • the contact legs and the retaining lugs 7 of the contact springs 5 are each offset by 90 °.
  • a contact spring 5 is shown at the top in FIG. 3, in which the engagement of the rear wall wiring board 2 by the retaining lugs 7 after the introduction of the contact spring 5 into the bore 6 of the rear wall wiring board 2 is shown.
  • the holding lugs 7 prevent the contact springs 5 from being pulled out of the bores 6 of the rear wall wiring board 2 when the assembly circuit board 1 is pulled. 3, the contact spring 5 is shown rotated by 90 °, so that the contact legs can be seen.
  • a molded pre-pin 8 is provided, which fits precisely into a bore 6 of the rear wall wiring plate 2 which is not equipped with a contact spring 5.
  • the bores in the rear wall wiring board 2 are designed as blind holes 9 (FIG. 5) and the bottom of the blind hole 9 is also metallized.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The blades (4) are placed on the side of the modular printed circuit board (1) and the contact springs (5) are located on the side of the wiring backplane (2). The blades (4) are thus held and surrounded by injected plastic in a plate-like male connector strip (3) which is perpendicular to the modular printed circuit board (1). The extensions of the blades pointing to the modular printed circuit board (1) are connected to the modular printed circuit board (1) by surface-mount technology. The contact springs (5) consist of a bent spring sheet steel rotational member with two contact legs, which are inserted in holes (6) in the wiring backplane (2). SMT can be used in the inventive plug-in connection.

Description

Beschreibungdescription
Steckverbindung zur Verbindung von Baugruppenleiterplatten mit einer RuckwandverdrahtungsplattePlug connection for connecting assembly circuit boards with a rear wall wiring board
Die vorliegende Erfindung betrifft eine Steckverbindung zur Verbindung von Baugruppenleiterplatten mit einer Ruckwandverdrahtungsplatte, bei der die Messer auf der Baugruppenleiter- plattenseite und die Kontaktfedern auf der Rückwandverdrah- tungsseite angeordnet sind.The present invention relates to a plug-in connection for connecting assembly circuit boards to a backplane wiring board, in which the knives are arranged on the assembly board side and the contact springs on the backplane wiring side.
Eine derartige Steckverbindung, bei der die Messer auf der Baugruppenleiterplattenseite angeordnet sind, ist z, B. aus der DE 88 14 942 UI bekannt.Such a plug connection, in which the knives are arranged on the assembly circuit board side, is known, for example, from DE 88 14 942 UI.
Diese bekannten Steckverbinder weisen bezüglich der Messerleisten und der Federleisten einen verhältnismäßig komplizierten Aufbau auf, wodurch sich erhebliche Herstellungskosten ergeben.These known connectors have a relatively complicated structure with respect to the male connectors and the female connectors, which results in considerable manufacturing costs.
Aufgabe der vorliegenden Erfindung ist es, eine Steckverbindung der eingangs genannten Art anzugeben, welche sich durch einen einfachen Aufbau auszeichnet und einfach herszustell-en ist.The object of the present invention is to provide a plug connection of the type mentioned at the outset, which is distinguished by a simple structure and is easy to produce.
Diese Aufgabe wird für eine Steckverbindung der eingangs genannten Art dadurch gelöst, daß die Messer in einem senkrecht zur Baugruppenleiterplatte stehenden plattenförmigen Messerleistenkörper kunststoffumspritzt gehalten sind, wobei ihre zur Baugruppenleiterplatte hin weisenden Verlängerungen mit der Baugruppenleiterplatte mittels SMD-Technik verbunden sind und daß die Kontaktfedern aus einem aus Federblech gebogenen Rotationsteil mit zwei Kontaktschenkeln bestehen, welche in Bohrungen der Ruckwandverdrahtungsplatte eingesetzt sind.This object is achieved for a plug connection of the type mentioned above in that the knives are plastic-encapsulated in a plate-shaped male connector body standing perpendicular to the assembly circuit board, their extensions pointing towards the assembly circuit board being connected to the assembly circuit board by means of SMD technology and in that the contact springs are made from one made of spring plate bent rotary part with two contact legs, which are used in the holes in the rear wall wiring plate.
Bei der erfindungsgemäßen Steckverbindung können die Messer mittels SMD-Technik auf der Baugruppenleiterplatte befestigt werden. Durch diese konsequente Anwendung der SMD-Technik ergeben sich große Kosteneinsparungspotentiale. So können z. B. bei einer Anwendung der SMD-Technik auf der Baugruppenseite komplette Arbeitsgänge und Fertigungseinrichtungen für Ein- preßtechnik, Schwallöten usw. entfallen.In the plug connection according to the invention, the knives can be fastened to the assembly circuit board by means of SMD technology become. This consistent application of SMD technology results in great potential for cost savings. So z. B. when using SMD technology on the assembly side, complete operations and manufacturing facilities for press-fit technology, wave soldering, etc. are eliminated.
Aus der US 3 197 766 und der GB 15 08 507 sind bereits Kontaktfedern aus Federblech bekannt, die in Bohrungen von Leiterplatten eingesetzt sind, jedoch handelt es sich dabei nicht um rotationssymmetrische Federn, welche die der vorliegenden Erfindung zugrunde liegende Aufgabe lösen können.Contact springs made of spring sheet metal are already known from US Pat. No. 3,197,766 and GB 15 08 507, which are used in bores in printed circuit boards, but these are not rotationally symmetrical springs which can achieve the object on which the present invention is based.
Weiterhin ist aus der DE 35 44 125 C2 ein Steckverbinder bekannt, dessen Messer in einem Messerleistenkörper kunst- stoffumspritzt gehalten sind und mittels SMD-Technik auf einer Leiterplatte aufgebracht sind. Jedoch weist der Messerleistenkörper den oben als nachteilig geschilderten Aufbau auf .Furthermore, from DE 35 44 125 C2 a connector is known, the knives of which are encapsulated in plastic in a male connector body and are applied to a circuit board by means of SMD technology. However, the male connector body has the construction described above as disadvantageous.
Weitere zweckmäßige Ausgestaltungen und Vorteile der erfindungsgemäßen Steckverbindung ergeben sich aus den Unteransprüchen sowie aus der nachfolgenden Beschreibung.Further expedient refinements and advantages of the plug connection according to the invention result from the subclaims and from the following description.
Nachfolgend wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben.The invention is described in more detail below with reference to an exemplary embodiment shown in the drawing.
Es zeigenShow it
Figur 1 einen Querschnitt durch eine erfindungsgemäße Steck- Verbindung,FIG. 1 shows a cross section through a plug connection according to the invention,
Figur 2 einen Schnitt oberhalb der Ruckwandverdrahtungsplatte entsprechend Figur 1,FIG. 2 shows a section above the rear wall wiring board corresponding to FIG. 1,
Figur 3 Querschnitte durch bestimmte Teile der erfindungsgemäßen Steckverbindung, Figur 4 einen Schnitt oberhalb der Ruckwandverdrahtungsplatte entsprechend Figur 3,FIG. 3 cross sections through certain parts of the plug connection according to the invention, FIG. 4 shows a section above the rear wall wiring board corresponding to FIG. 3,
Figur 5 eine alternative Ausführung der Rückwandverdrahtungs- platte gemäß der erfindungsgemäßen Steckverbindung,5 shows an alternative embodiment of the backplane wiring board according to the plug connection according to the invention,
Figur 6 eine schematische Draufsicht auf eine Baugruppenleiterplatte mit einer Messerleiste gemäß der vorliegenden Erfindung, undFigure 6 is a schematic plan view of an assembly circuit board with a male connector according to the present invention, and
Figur 7 eine schematische Ansicht von vorn einer Messerleiste der erfindungsgemäßen Steckverbindung.Figure 7 is a schematic front view of a male connector of the connector according to the invention.
Bei der erfindungsgemäßen Steckverbindung wird die Messerlei- ste der Baugruppenleiterplatte 1 zugeordnet. Die Messer 4 sind in einem Messerleistenkörper 3 kunststoffumspritzt gehalten, wobei der Messerleistenkörper 3 senkrecht zur Baugruppenleiterplatte 1 angeordnet ist. Die Verlängerungen der einzelnen Messer sind mittels SMT-Technik auf der Baugruppen- seite verlötet. Dadurch, daß die Messer auf der Baugruppenseite angeordnet sind, entfällt bei der Anwendung der SMT- Technik das Problem mit der Fettbeschichtung der Federn.In the plug connection according to the invention, the knife bar is assigned to the assembly circuit board 1. The knives 4 are held in a molded plastic body 3 in a male connector body 3, the male connector body 3 being arranged perpendicular to the component circuit board 1. The extensions of the individual knives are soldered on the assembly side using SMT technology. The fact that the knives are arranged on the assembly side eliminates the problem with the grease coating of the springs when using SMT technology.
Dadurch, daß die Messer kunststoffumspritzt sind, entfällt ein weiterer Montagevorgang und es ergibt sich eine kompakte Einheit .Due to the fact that the knives are encapsulated in plastic, a further assembly process is omitted and the result is a compact unit.
Der Messerleistenkörper 3 kann modulartig aufgeteilt sein, wobei jedem Modul eine bestimmte Anzahl von Rasterpunkten ei- nes Rasters, in welchen die Messer 4 angeordnet sind, zugeordnet wird. Diese modulartige Aufteilung ist z. B. in den Figuren 6 und 7 dargestellt.The male connector body 3 can be divided into modules, each module being assigned a certain number of grid points of a grid in which the knives 4 are arranged. This modular division is z. B. shown in Figures 6 and 7.
Die Kontaktfedern bestehen aus aus Federblech gebogenen Rota- tionsteilen mit zwei Kontaktschenkeln und zwei Haltenasen 7 und werden in Bohrungen 6 in der Ruckwandverdrahtungsplatte 2 eingesetzt. Das heißt, die Kontaktfedern 5 können gefettet direkt in die Bohrungen 6 der Ruckwandverdrahtungsplatte 2 eingesetzt werden. Dadurch entfällt das Kunststoffteil des Federleistenkörpers und somit wird ein weiterer Montagevorgang eingespart .The contact springs consist of rotating parts bent from spring sheet metal with two contact legs and two retaining lugs 7 and are inserted into bores 6 in the rear wall wiring plate 2. This means that the contact springs 5 can be greased be inserted directly into the holes 6 of the rear wall wiring board 2. This eliminates the plastic part of the female connector body and thus saves a further assembly process.
Die Kontaktschenkel und die Haltenasen 7 der Kontaktfedern 5 sind jeweils um 90° versetzt. In Figur 3 ist oben eine Kontaktfeder 5 dargestellt, bei welcher das Hintergreifen der Ruckwandverdrahtungsplatte 2 durch die Haltenasen 7 nach der Einführung der Kontaktfeder 5 in die Bohrung 6 der Ruckwandverdrahtungsplatte 2 dargestellt ist. Die Haltenasen 7 verhindern, daß beim Ziehen der Baugruppenleiterplatte 1 die Kontaktfedern 5 aus den Bohrungen 6 der Ruckwandverdrahtungsplatte 2 mit herausgezogen werden. Unter dieser oben be- schriebenen Darstellung in Figur 3 ist die Kontaktfeder 5 um 90° gedreht dargestellt, so daß die Kontaktschenkel zu erkennen sind.The contact legs and the retaining lugs 7 of the contact springs 5 are each offset by 90 °. A contact spring 5 is shown at the top in FIG. 3, in which the engagement of the rear wall wiring board 2 by the retaining lugs 7 after the introduction of the contact spring 5 into the bore 6 of the rear wall wiring board 2 is shown. The holding lugs 7 prevent the contact springs 5 from being pulled out of the bores 6 of the rear wall wiring board 2 when the assembly circuit board 1 is pulled. 3, the contact spring 5 is shown rotated by 90 °, so that the contact legs can be seen.
Zum Bestücken der Ruckwandverdrahtungsplatte 2 mit den Kon- taktfedern 5 können bestehende Einpreßmaschinen bzw. Nagelautomaten verwendet werden.Existing press-in machines or automatic nailers can be used to populate the rear wall wiring board 2 with the contact springs 5.
Um einen Schutz der Messer 4 bei einem falschen Steckvorgang zu erreichen, ist z. B. am unteren und oberen Teil der Steck- Verbindung ein angespritzter Voreilstift 8 vorgesehn, welcher genau in eine nicht mit einer Kontaktfeder 5 bestückten Bohrung 6 der Ruckwandverdrahtungsplatte 2 paßt.In order to protect the knife 4 in the event of an incorrect plugging process, z. B. on the lower and upper part of the plug-in connection, a molded pre-pin 8 is provided, which fits precisely into a bore 6 of the rear wall wiring plate 2 which is not equipped with a contact spring 5.
Außerdem können bei alternativer Gestaltung der Rückwandver- drahtungsplatte und der Steckverbindung günstige Eigenschaften bezüglich des Signalübertragungsverhaltens erreicht werden, indem man eine weitgehend geschirmte Kontaktstelle bildet. Dazu werden die Bohrungen in der Ruckwandverdrahtungsplatte 2 als Sacklöcher 9 (Figur 5) ausgestaltet und der Bo- den des Sacklochs 9 wird mitmetallisiert. In addition, with alternative designs of the rear wall wiring board and the plug connection, favorable properties with regard to the signal transmission behavior can be achieved by forming a largely shielded contact point. For this purpose, the bores in the rear wall wiring board 2 are designed as blind holes 9 (FIG. 5) and the bottom of the blind hole 9 is also metallized.

Claims

Patentansprüche claims
1. Steckverbindung zur Verbindung von Baugruppenleiterplatten mit einer Ruckwandverdrahtungsplatte, bei der die Messer auf der Baugruppenleiterplattenseite und die Kontaktfedern auf der Rückwandverdrahtungsseite angeordnet sind, dadurch gekennzeichnet, daß die Messer (4) in einem senkrecht zur Baugruppenleiterplatte (1) stehenden plattenförmigen Messerleistenkörper (3) kunststoffumspritzt gehalten sind, wobei ihre zur Baugruppenleiterplatte (1) hin weisenden Verlängerungen mit der Baugruppenleiterplatte (1) mittels SMD-Technik verbunden sind, und daß die Kontaktfedern (5) aus einem aus Federblech gebogenem Rotationsteil mit zwei Kontaktschenkeln bestehen, welche in Bohrungen (6) der Ruckwandverdrahtungsplatte (2) eingesetzt sind.1. Plug connection for connecting assembly circuit boards with a backplane wiring board, in which the knives are arranged on the assembly board side and the contact springs on the backplane wiring side, characterized in that the knives (4) are in a plate-shaped male connector body (3) standing perpendicular to the assembly board (1). are encapsulated in plastic, with their extensions pointing towards the assembly circuit board (1) connected to the assembly circuit board (1) by means of SMD technology, and that the contact springs (5) consist of a rotating part bent from spring sheet metal with two contact legs, which are in bores (6 ) the rear wall wiring plate (2) are used.
2. Steckverbindung nach Anspruch 1, dadurch gekennzeichnet, daß an den Messerleistenkörper (3) im Rastermaß der Messer (4) an vorgegebenen Stellen Voreilstifte (8) angeordnet sind, deren Durchmesser dem Durchmesser der Bohrungen (6) in der Ruckwandverdrahtungsplatte (2) entspricht.2. Plug connection according to claim 1, characterized in that on the male connector body (3) in the pitch of the knives (4) at predetermined locations lead pins (8) are arranged, the diameter of which corresponds to the diameter of the holes (6) in the rear wall wiring board (2) .
3. Steckverbindung nach Anspruch 1 oder 2 , dadurch gekennzeichnet, daß das die Kontaktfedern (5) bildende Rotationsteil weiterhin zwei Haltenasen (7) aufweist, welche im eingeschobenen Zustand des Rotationsteils die Ruckwandverdrahtungsplatte (2) hintergreifen .3. Plug connection according to claim 1 or 2, characterized in that the rotating part forming the contact springs (5) further has two retaining lugs (7) which engage behind the rear wall wiring plate (2) in the inserted state of the rotating part.
4. Steckverbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Messerleistenkörper (3) modulartig unterteilt ist, wobei jedem Modul eine vorgegebene Anzahl von Rasterpunkten zugeteilt ist. 4. Plug connection according to one of the preceding claims, characterized in that the male connector body (3) is subdivided into modules, each module being assigned a predetermined number of grid points.
5. Steckverbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bohrungen in der Ruckwandverdrahtungsplatte (2) als Sacklöcher (9) ausgeführt sind, wobei Boden und Wände des Sacklochs (9) mitmetallisiert sind. 5. Plug connection according to one of the preceding claims, characterized in that the bores in the rear wall wiring board (2) are designed as blind holes (9), the bottom and walls of the blind hole (9) being co-metallized.
PCT/DE1997/002913 1996-12-19 1997-12-15 Plug-in connection for connecting modular printed circuit boards to a wiring backplane WO1998027623A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19653119.5 1996-12-19
DE19653119 1996-12-19

Publications (2)

Publication Number Publication Date
WO1998027623A2 true WO1998027623A2 (en) 1998-06-25
WO1998027623A3 WO1998027623A3 (en) 1998-08-27

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1962112A1 (en) * 1969-12-11 1971-06-24 Internationaler Dienst Gmbh Volume-expansion thermometer
US4169649A (en) * 1976-12-16 1979-10-02 Vero Electronics Limited Connectors for use in frames for holding circuit cards
EP0677898A2 (en) * 1994-04-14 1995-10-18 Siemens Aktiengesellschaft Connector for backplanes
EP0677896A2 (en) * 1994-04-14 1995-10-18 Siemens Aktiengesellschaft Connector for backplanes
EP0700131A1 (en) * 1994-08-29 1996-03-06 Siemens Aktiengesellschaft Plug and socket connection for back plane wiring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1962112A1 (en) * 1969-12-11 1971-06-24 Internationaler Dienst Gmbh Volume-expansion thermometer
US4169649A (en) * 1976-12-16 1979-10-02 Vero Electronics Limited Connectors for use in frames for holding circuit cards
EP0677898A2 (en) * 1994-04-14 1995-10-18 Siemens Aktiengesellschaft Connector for backplanes
EP0677896A2 (en) * 1994-04-14 1995-10-18 Siemens Aktiengesellschaft Connector for backplanes
EP0700131A1 (en) * 1994-08-29 1996-03-06 Siemens Aktiengesellschaft Plug and socket connection for back plane wiring

Also Published As

Publication number Publication date
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