EP0153632A2 - Mounting of a connector to a measuring device - Google Patents

Mounting of a connector to a measuring device Download PDF

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Publication number
EP0153632A2
EP0153632A2 EP85101324A EP85101324A EP0153632A2 EP 0153632 A2 EP0153632 A2 EP 0153632A2 EP 85101324 A EP85101324 A EP 85101324A EP 85101324 A EP85101324 A EP 85101324A EP 0153632 A2 EP0153632 A2 EP 0153632A2
Authority
EP
European Patent Office
Prior art keywords
plug
circuit board
socket
contact elements
measuring device
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.)
Granted
Application number
EP85101324A
Other languages
German (de)
French (fr)
Other versions
EP0153632A3 (en
EP0153632B1 (en
Inventor
Hartmut Schultze
Volker Silbersdorf
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.)
Digital Kienzle Computersysteme GmbH and Co KG
Original Assignee
Kienzle Apparate GmbH
Mannesmann Kienzle GmbH
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Filing date
Publication date
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Application filed by Kienzle Apparate GmbH, Mannesmann Kienzle GmbH filed Critical Kienzle Apparate GmbH
Publication of EP0153632A2 publication Critical patent/EP0153632A2/en
Publication of EP0153632A3 publication Critical patent/EP0153632A3/en
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Publication of EP0153632B1 publication Critical patent/EP0153632B1/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
    • 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
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • H01R12/7011—Locking or fixing a connector to a PCB
    • H01R12/707—Soldering or welding
    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • 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
    • H01R4/02—Soldered or welded connections

Definitions

  • the invention relates to an arrangement of a plug connection on a measuring device, the back of which is closed by a cover which has an opening allowing the connection of device-side contact elements with at least one external plug.
  • a large number of measuring and counting devices is designed in such a way that the various functional assemblies are assigned to a supporting housing segment or a supporting frame and that a cover, for example a hood-like housing component, which closes the rear of the housing segment is provided .
  • a cover for example a hood-like housing component, which closes the rear of the housing segment.
  • miniaturization means reducing the component wall thickness and thus the strength of the components, thus increasing, for example, the risk of the contact elements on the device being bent during assembly of the plug connection, so that miniaturization must generally result in an increase in the production quality by narrowing the tolerance ranges of the components involved.
  • the present invention was therefore based on the object of designing and arranging a plug connection for the measuring device architecture described in such a way that the manufacturing and assembly outlay is largely reduced compared to the last-mentioned known solution and that it can be implemented with a significantly higher accuracy in comparison with the conventional first-mentioned solution is and is therefore suitable for miniaturization as well as for mechanical assembly.
  • the solution to this problem provides that the device-side contact elements are arranged directly on a circuit board fastened in the measuring device, that a plug base assigned to all contact elements is provided, in which a socket with the contact elements assigned openings and only a single connecting position of the plug and plug base allowing wall contours is formed and that the plug base can be connected to the printed circuit board on the one hand, and on the other hand is designed in such a way that there is a positive assignment with respect to the edge of the opening in the cover.
  • a preferred embodiment is characterized in that several sockets with unevenly shaped wall contours are formed in the plug base and that on the one hand a positioning pin, several spacing lugs and at least two bolts, on the other hand a circumferential one, together with one in a suitable manner at the opening of the cover formed edge of a labyrinth seal forming depression are formed.
  • the connector base assigned directly to the contact elements constitutes a housing component of the measuring device, in which, with mutual play around the edges of the connector base and the opening assigned to it in the cover, a tolerance-compensating, positive connection with the rear cover of the measuring device is provided is.
  • the connector base in particular in its design with several sockets, can not only be produced easily and with high accuracy, but can also be assembled in a simple, ultimately mechanical manner by plugging and latching on the printed circuit board and thus on the printed circuit board a contact or pin base forming a structural unit can be produced, in which the contact elements are largely protected and the soldered connections of the contact elements on the printed circuit board are relieved by a holding plane in the plug base located as far as possible from the printed circuit board.
  • the functional unit created can already be connected in the preassembly stage to the commercially available connector types assigned to the finished measuring device and can thus be handled and checked in an installation-identical state independently of the measuring device.
  • 1 denotes a printed circuit board which is equipped with a larger number of contact elements designed as contact tongues - one is designated by 2. More specifically, there are four groups of contact elements 2 provided according to the commercially available eight-pin socket plugs assigned to the measuring device, one of which is shown and designated 3, but only the contact elements 2 are set which are actually required in accordance with the intended device design. For the sake of completeness, it should be mentioned that, in order to achieve production optimization, which also prevents riveting of angled contact tongues with the printed circuit board 1 due to the limited packing density, the contact tongues 2 together with electrical components, not shown, are machined by "shooting" into the printed circuit board 1 assembled and contacted with the assigned conductor tracks.
  • This risk is according to the invention thereby reduces an extent that the contact tongue coulter an all intended S is assigned teckern.3 common connector base 4, in such a way that it is attached directly to the circuit board 1.
  • a positioning pin 5, to which a corresponding hole 6 is assigned in the printed circuit board 1, and two pawls 7 and 8, which engage behind the printed circuit board 1 through suitable openings 9 and 10, are provided as fastening means.
  • sockets 18, 19, 2 0 , 21 are formed in the plug base 4, the walls of which, according to the unspecified designs on the housings of the plugs 3, respectively have guide or positioning grooves 22, 23, 24, 25 and 26 exhibit.
  • the grooves 26, 27, 28, 29 formed on the narrow sides of the sockets 18, 19, 2o and 21 are arranged unevenly in their position relative to the adjacent socket walls in order to provide a clear assignment of connector 3 and the respective socket 18, 19, 2o and 21 to achieve.
  • Openings 3o, 31, 32 and 33 are used to insert the latches 34 which are formed like a rocker on the plugs 3 and which, when the plugs 3 are inserted into the respective sockets 18, 19, 2o and 21, snap into suitable undercuts formed in the plug base 4 -are. Except a circumferential recess 35 is formed on the plug base 4 with an edge 36 delimiting it. As a labyrinth-forming counterform to this, an edge 38 delimiting the opening 38 and a circumferential rib 40 are formed on the cover 37 of the measuring device, which has an opening 38 assigned to the plug base 4, and at a substantially constant distance from the edge 39.
  • the two flaps 42 and 43 which are articulated by means of a film hinge 41 to the housing of the plug 3, carry inwardly facing cams which, when the flaps 42 and 43 are locked into the housing, are one in the conductor channels designated with 44 - intervene and hold in place in the plug inserted, provided with contact sockets line ends, so that the line ends in the plug housing are tilted and thus held adaptable.
  • the measuring device architecture shown in FIG. 2 shows, for example, a load-bearing housing component 45, with which a mounting plate 46, which is not shown for the sake of simplicity, and the circuit board 1, also shown free of components, are firmly connected using a plurality of housing-fixed threaded bolts 47 and spacer sleeves 48 and nuts 49 assigned to them.
  • four plugs 3 are used in the plug-in socket 4, which is latched to the circuit board 1, one of which, for example, the power supply lines, other different measured value inputs and outputs and lines for signals dependent on the respective measured value and a z.
  • a comb-like hood 50 fastened and sealable to the cover 37 connected to the supporting housing component 45 serves on the one hand for the plugs 3 as access protection and on the other hand for bundling the lines.
  • 51 and 52 are in Connector 3 designated contact sockets, while 53 represents a suitable sealing material inserted into the form fit between cover 37 and connector base 4.

Abstract

A connector socket of the type used for multiple connections to electrical equipment and instrumentation has a printed circuit card with a number of contact blades projecting from the surface. External connection with the blades is made by a socket that provides coupling with each group of four contact blades. Several plugs may be used side by side. Guidance for the plugs is provided by a socket housing with separate guideways and latching lugs that engage with holes in the printed circuit board. The socket is flush mounted with the housing plate. The plug element also has a latching claw that engages with the socket.

Description

Die Erfindung betrifft eine Anordnung einer Steckverbindung an einem Meßgerät, dessen Rückseite durch eine Abdeckung abgeschlossen ist, welche eine die Verbindung von geräteseitigen Kontaktelementen mit wenigstens einem externen Stecker gestattende Öffnung aufweist.The invention relates to an arrangement of a plug connection on a measuring device, the back of which is closed by a cover which has an opening allowing the connection of device-side contact elements with at least one external plug.

Eine Vielzahl von Meß- und Zählgeräten ist, insbesondere wenn es sich um Einbaugeräte handelt, derart konzipiert, daß die verschiedenen.Funktionsbaugruppen einem tragenden Gehäusesegment oder einem tragenden Rahmen zugeordnet sind und daß eine das Gehäusesegment rückseitig abschließende Abdeckung, beispielsweise ein haubenartiges Gehäusebauteil, vorgesehen ist. Dieses Konzept bietet zwar bezüglich der einzelnen Funktionsbaugruppen zufriedenstellende Montierbarkeit, Prüffähigkeit und Wartungsfreundlichkeit, weist andererseits aber auch Schwächen hinsichtlich der an der Geräterückseite vorzusehenden Kontaktverbindungen für einerseits die Energieversorgung, andererseits ein- und ausgehende Meßwertinformationen auf, weil insbesondere in der Großserienfertigung der Aufwand für eine befriedigende Qualität der erforderlichen Steckeranschlüsse relativ hoch ist.A large number of measuring and counting devices, in particular when it comes to built-in devices, is designed in such a way that the various functional assemblies are assigned to a supporting housing segment or a supporting frame and that a cover, for example a hood-like housing component, which closes the rear of the housing segment is provided . Although this concept offers satisfactory mountability, testability and ease of maintenance with regard to the individual functional assemblies, it also has weaknesses with regard to the contact connections to be provided on the rear of the device for the one hand for energy supply and for the other hand incoming and outgoing measured value information, because in large-scale production in particular the effort for a satisfactory one Quality of the required plug connections is relatively high.

Die Forderung nach Aufwandminimierung derartiger, an sich nebengeordneter Einrichtungen an einem Meßgerät wurde bisher dadurch realisiert, daß die geräteseitigen Kontakte in Form von Kontaktzungen unmittelbar an einer fest mit dem tragenden Gehäusebauteil verbundenen Leiterplatte angebracht und die Stekkerfassungen mit den Kontaktzungen zugeordneten Schlitzen in der Abdeckung ausgeformt worden sind.The requirement for minimizing the cost of such devices, which in themselves are secondary to a measuring device, has so far been realized in that the device-side contacts in the form of contact tongues are attached directly to a circuit board firmly connected to the load-bearing housing component and the plug receptacles with the slots associated with the contact tongues have been formed in the cover are.

Diese, was den Aufwand anbelangt, außerordentlich einfache Lösung ist aber nur dort anwendbar, wo erhebliche Maßabweichungen, die sich dadurch ergeben, daß die Kontaktzungen dem einen, die Steckerfassung dem anderen Gehäusebauteil, d.h. der Abdeckung, zugeordnet sind und sich somit die in der Serienfertigung ohnehin grob zu haltenden Gehäusetoleranzen an den Steckverbindungen nachteilig auswirken, geduldet werden können. Sollen, was bei zunehmender Elektronisierurig und Datenverarbeitung im Meßgerät beispielsweise die Polzahl eines Steckers vermehrt und außerdem die Anzahl der Stecker erhöht werden, wobei im allgemeinen die von den geräteseitigen Kontaktelementen beanspruchte Bestückungsfläche so gering wie möglich zu halten ist, andererseits aber auch der an der Rückseite eines derartigen Meßgerätes gegebene Raum für das Vorsehen mehrerer Stecker begrenzt ist, so ist eine Miniaturisierung der Steckeranschlußelemente in einem Rahmen, der durch das von Leiterquerschnitt und Handhabbarkeit bestimmte Gehäuse des externen Steckers gegeben ist, unumgänglich.This, in terms of effort, extremely simple solution can only be used where there are significant dimensional deviations, which result from the fact that the contact tongues are assigned to one, the plug socket to the other housing component, ie the cover, and thus the housing tolerances on the plug connections, which are to be kept rough in series production anyway, can be tolerated. What should increase with increasing electronics and data processing in the measuring device, for example, the number of poles of a connector and also the number of connectors, whereby in general the area occupied by the device-side contact elements is to be kept as small as possible, but also that on the back Given such a measuring device is limited space for the provision of several connectors, miniaturization of the connector connection elements in a frame, which is given by the housing of the external connector determined by conductor cross-section and manageability, is essential.

Miniaturisierung bedeutet aber Verringerung der Bauteilewandstärken und somit der Festigkeiten der Bauteile, erhöht also beispielsweise die Gefahr des Verbiegens der geräteseitigen Kontaktelemente bei der Montage der Steckverbindung, so daß eine Miniaturisierung generell eine Anhebung der Fertigungsqualität durch Einengung der Toleranzfelder der beteiligten Bauteile zur Folge haben muß.However, miniaturization means reducing the component wall thickness and thus the strength of the components, thus increasing, for example, the risk of the contact elements on the device being bent during assembly of the plug connection, so that miniaturization must generally result in an increase in the production quality by narrowing the tolerance ranges of the components involved.

Unter diesen Umständen ist dann aber eine Zuordnung der Stekkeranschlußelemente zu zwei verschiedenen Gehäusebauteilen nicht mehr sinnvoll. Man ist daher, was bereits realisiert worden ist, gezwungen, den in Herstellung und Montage wesentlich aufwendigeren Weg zu gehen und einen Steckersockel, in welchem die geräteseitigen Kontaktelemente in geeigneter Weise gehaltert oder gießtechnisch eingebettet sind, derart an dem tragenden Gehäusebauteil oder an einem mit diesem fest verbundenen Baugruppenträger zu befestigen, daß die dem Einführen des Steckers dienende öffnung in der Abdeckung unter Zwischenlage einer Dichtung wenigstens staubdicht abgeschlossen ist. Die in diesem Zusammenhang bekannte Anordnung ist durch Setzen oder Einbetten von Kontakten in einen Steckersockel nicht nur teuer, es haftet ihr durch Einzelverdrahten der Kontakte mit beispielsweise einer Leiterplatte oder einem anderen Kontaktträger auch der Nachteil einer umständlichen und zeitraubenden Montage an.Under these circumstances, however, it is no longer sensible to assign the connector connection elements to two different housing components. It is therefore, what has already been realized, forced to go the much more complex way in manufacture and assembly and a connector base, in which the device-side contact elements are suitably mounted or embedded in the casting technique, such on the supporting housing component or on one with it firmly attached subrack to fasten that the opening for the insertion of the plug in the cover with the interposition of a you tion is at least dustproof. The arrangement known in this context is not only expensive by placing or embedding contacts in a plug base, it also has the disadvantage of cumbersome and time-consuming installation due to individual wiring of the contacts with, for example, a printed circuit board or another contact carrier.

Der vorliegenden Erfindung lag daher die Aufgabe zugrunde, für die beschriebene Meßgerätearchitektur eine Steckverbindung derart auszubilden und anzuordnen, daß der Fertigungs- und Montageaufwand gegenüber der letztgenannten bekannten Lösung weitgehend reduziert ist und daß sie im Vergleich mit der üblichen erstgenannten Lösung mit einer entscheidend höheren Genauigkeit realisierbar ist und sich somit sowohl für eine Miniaturisierung als auch für eine maschinelle Montage eignet.The present invention was therefore based on the object of designing and arranging a plug connection for the measuring device architecture described in such a way that the manufacturing and assembly outlay is largely reduced compared to the last-mentioned known solution and that it can be implemented with a significantly higher accuracy in comparison with the conventional first-mentioned solution is and is therefore suitable for miniaturization as well as for mechanical assembly.

Die Lösung dieser Aufgabe sieht vor, daß die geräteseitigen Kontaktelemente unmittelbar an einer im Meßgerät befestigten Leiterplatte angeordnet sind, daß ein sämtlichen Kontaktelementen zugeordneter Steckersockel vorgesehen ist, in welchem eine Fassung mit den Kontaktelementen zugeordneten Öffnungen und nur eine einzige Verbindungsstellung von Stecker und Stekkersockel zulassende Wandkonturen ausgeformt ist und daß der Steckersockel einerseits mit der Leiterplatte rastbar verbindbar, andererseits derart ausgebildet ist, daß gegenüber dem Rand der in der Abdeckung befindlichen Öffnung eine formschlüssige Zuordnung gegeben ist.The solution to this problem provides that the device-side contact elements are arranged directly on a circuit board fastened in the measuring device, that a plug base assigned to all contact elements is provided, in which a socket with the contact elements assigned openings and only a single connecting position of the plug and plug base allowing wall contours is formed and that the plug base can be connected to the printed circuit board on the one hand, and on the other hand is designed in such a way that there is a positive assignment with respect to the edge of the opening in the cover.

Ein bevorzugtes Ausführungsbeispiel ist dadurch gekennzeichnet, daß in dem Steckersockel mehrere Fassungen mit ungleich geformten Wandkonturen ausgebildet sind und daß an dem Stekkersockel einerseits ein Positionierzapfen, mehrere Distanzansätze sowie wenigstens zwei Riegel, andererseits eine umlaufende, zusammen mit einem in geeigneter Weise an der öffnung der Abdeckung ausgeformter Rand eine Labyrinthdichtung bildende Vertiefung ausgebildet sind.A preferred embodiment is characterized in that several sockets with unevenly shaped wall contours are formed in the plug base and that on the one hand a positioning pin, several spacing lugs and at least two bolts, on the other hand a circumferential one, together with one in a suitable manner at the opening of the cover formed edge of a labyrinth seal forming depression are formed.

Mit dieser Lösung wird somit weiterhin der Vorteil genutzt, die geräteseitigen Kontaktelemente, was insbesondere bei einer großen Anzahl zweckmäßig ist, im Zuge einer maschinellen Bestükkung der Leiterplatte montieren zu können. Auf der anderen Seite stellt der unmittelbar den Kontaktelementen zugeordnete Steckersockel ein Gehäusebauelement des Meßgerätes dar, in dem durch ein mit allseitigem Spiel gegenseitiges Umgreifen der Ränder von Steckersockel und der diesem in der Abdeckung zugeordneten Öffnung eine toleranzausgleichende, formschlüssige Verbindung mit der rückseitigen Abdeckung des Meßgerätes gegeben ist. Ferner ist vorteilhaft, daß der Steckersockel insbesondere in seiner Ausbildung mit mehreren Fassungen sich nicht nur problemlos und mit hoher Genauigkeit herstellen läßt sondern auch auf einfache, letzten Endes auch maschinelle Weise durch Aufstecken und Verrasten mit der Leiterplatte montiert werden kann und somit ein mit der Leiterplatte eine Baueinheit bildender Kontakt- bzw. Stiftsockel herstellbar ist, in welchem die Kontaktelemente weitgehend geschützt und die Lötverbindungen der Kontaktelemente an der Leiterplatte durch eine in einem möglichst großen Abstand von der Leiterplatte befindliche Halteebene im Steckersockel entlastet sind. Besonders erwähnenswert ist, daß mit der vorgeschlagenen, von Gehäusetoleranzen unabhängigen, eindeutigen Zuordnung des Steckersockels zur Leiterplatte die entstandene Funktionseinheit bereits im Vormontagestadium mit den dem fertigen Meßgerät zugeordneten, handelsüblichen Steckertypen verbindbar und somit in einem einbauidentischen Zustand unabhängig vom Meßgerät handhab- und prüfbar ist.With this solution, the advantage of the device-side contact elements, which is particularly expedient in the case of a large number, can thus be used in the course of mechanical assembly of the printed circuit board. On the other hand, the connector base assigned directly to the contact elements constitutes a housing component of the measuring device, in which, with mutual play around the edges of the connector base and the opening assigned to it in the cover, a tolerance-compensating, positive connection with the rear cover of the measuring device is provided is. It is also advantageous that the connector base, in particular in its design with several sockets, can not only be produced easily and with high accuracy, but can also be assembled in a simple, ultimately mechanical manner by plugging and latching on the printed circuit board and thus on the printed circuit board a contact or pin base forming a structural unit can be produced, in which the contact elements are largely protected and the soldered connections of the contact elements on the printed circuit board are relieved by a holding plane in the plug base located as far as possible from the printed circuit board. It is particularly worth mentioning that, with the proposed unambiguous assignment of the connector base to the printed circuit board independent of the housing tolerances, the functional unit created can already be connected in the preassembly stage to the commercially available connector types assigned to the finished measuring device and can thus be handled and checked in an installation-identical state independently of the measuring device.

Im folgenden sei das bevorzugte Ausführungsbeispiel der Erfindung anhand der beigefügten Zeichnungen näher erläutert.In the following, the preferred embodiment of the invention will be explained in more detail with reference to the accompanying drawings.

Es zeigen

  • FIG. 1 eine perspektivische Darstellung der gemäß der erfindungsgemäßen Steckverbindung zusammenwirkenden Bauelemente,
  • FIG. 2 einen Schnitt durch die komplette Steckverbindungsanordnung an der Rückseite eines Meßgerätes,
  • FIG. 3 einen Schnitt durch den Steckersockel.
Show it
  • FIG. 1 shows a perspective illustration of the components interacting according to the plug connection according to the invention,
  • FIG. 2 shows a section through the complete plug connection arrangement on the back of a measuring device,
  • FIG. 3 shows a section through the plug base.

In FIG. 1 ist mit 1 eine Leiterplatte bezeichnet, welche mit einer größeren Anzahl als Kontaktzungen ausgebildeten Kontaktelementen - eines ist mit 2 bezeichnet - bestückt ist. Genauer gesagt, es sind entsprechend den dem.Meßgerät zugeordneten, handelsüblichen, achtpoligen Buchsensteckern, von denen einer dargestellt und mit 3 bezeichnet ist, vier Gruppen von Kontaktelementen 2 vorgesehen, jedoch nur die Kontaktelemente 2 gesetzt, die entsprechend der beabsichtigten Geräteausführung tatsächlich benötigt werden. Der Vollständigkeit halber sei erwähnt, daß, um eine Fertigungsoptimierung, die auch wegen der begrenzten Packungsdichte ein Vernieten angewinkelt ausgebildeter Kontaktzungen mit der Leiterplatte 1 ausschließt, zu erzielen, die Kontaktzungen 2 zusammen mit nicht dargestellten elektrischen Bauelementen maschinell durch "Einschießen" in die Leiterplatte 1 montiert und mit den zugeordneten Leiterbahnen kontaktiert werden. Diese - einerseits bedingt durch die verhältnismäßig geringe Leiterplattenstärke - extrem kurze Einspannung der Kontaktzungen 2, andererseits - bedingt durch den Raumbedarf gleichseitig angeordneter, elektrischer Bauelemente und die erforderliche Eingriffstiefe der Kontaktzungen 2 in den Steckern 3 - verhältnismäßig große Länge der Kontaktzungen 2, macht eine derartige, praktisch punktförmige Halterung der Kontaktzungen 2 -außerordentlich empfindlich gegenüber beim Setzen der Stecker auftretenden, aber auch temperatur- und erschütterungsbedingten sowie durch Toleranzaddition verursachten Biegemomente und stellt bezüglich der Lötverbindungen der Kontaktzungen 2 infolge der langen Hebelarme ein erhebliches Risiko dar. Dieses Risiko wird erfindungsgemäß dadurch weitgehend verringert, daß der Kontaktzungenschar ein sämtlichen vorgesehenen Steckern.3 gemeinsamer Steckersockel 4 zugeordnet ist, und zwar derart, daß er unmittelbar an der Leiterplatte 1 befestigt ist. Als Befestigungsmittel sind ein Positionierzapfen 5, dem in der Leiterplatte 1 eine entsprechende Bohrung 6 zugeordnet ist, sowie zwei Klinken 7 und 8, die die Leiterplatte 1 durch geeignete Durchbrüche 9 und 10 hintergreifen, vorgesehen. Außerdem sind die den Kontaktzungen 2 zugeordnete, im Boden 11 des Steckersockels 4 ausgeformte Schlitze 12 mit relativ engen Passungen versehen, so daß der Boden 11, wenn der Steckersockel 4 montiert ist und mittels an ihm ausgebildeter Distanzansätze 13, 14, 15 und 16 sowie einem dem Positionierzapfen 5 zugeordneten Ansatz 17 auf der Leiterplatte 1 aufsitzt, bezüglich der Kontaktzungen 2 eine zweite Halteebene darstellt und somit die Lötverbindungen der Kontaktzungen 2 durch Verkürzen des wirksamen Hebelarmes weitgehend entlastet sind.In FIG. 1, 1 denotes a printed circuit board which is equipped with a larger number of contact elements designed as contact tongues - one is designated by 2. More specifically, there are four groups of contact elements 2 provided according to the commercially available eight-pin socket plugs assigned to the measuring device, one of which is shown and designated 3, but only the contact elements 2 are set which are actually required in accordance with the intended device design. For the sake of completeness, it should be mentioned that, in order to achieve production optimization, which also prevents riveting of angled contact tongues with the printed circuit board 1 due to the limited packing density, the contact tongues 2 together with electrical components, not shown, are machined by "shooting" into the printed circuit board 1 assembled and contacted with the assigned conductor tracks. This - on the one hand due to the relatively small circuit board thickness - extremely short clamping of the contact tongues 2, on the other hand - due to the space requirement of equidistantly arranged electrical components and the required engagement depth of the contact tongues 2 in the plugs 3 - relatively long length of the contact tongues 2, makes such a , practically punctiform mounting of the contact tongues 2 - extremely sensitive to occurring when inserting the plug, but also due to temperature and vibration as well as through Tolerance addition caused bending moments and provides with respect to the soldered connections of the contact tongues 2 as a result of the long lever arms constitutes a significant risk. This risk is according to the invention thereby reduces an extent that the contact tongue coulter an all intended S is assigned teckern.3 common connector base 4, in such a way that it is attached directly to the circuit board 1. A positioning pin 5, to which a corresponding hole 6 is assigned in the printed circuit board 1, and two pawls 7 and 8, which engage behind the printed circuit board 1 through suitable openings 9 and 10, are provided as fastening means. In addition, the associated with the contact tongues 2, formed in the bottom 11 of the connector base 4 slots 12 with relatively narrow fits, so that the bottom 11, when the connector base 4 is mounted and by means of spacers 13, 14, 15 and 16 formed on it and one the projection 17 associated with the positioning pin 5 is seated on the printed circuit board 1, represents a second holding plane with respect to the contact tongues 2 and thus the soldered connections of the contact tongues 2 are largely relieved by shortening the effective lever arm.

Wie aus der FIG. 2 ferner ersichtlich ist, sind in dem Steckersockel 4 vier Fassungen 18, 19, 20, 21 ausgebildet, deren Wände gemäß nicht näher bezeichneter Ausbildungen an den Gehäusen der Stecker 3 jeweils Führungs- bzw. Positioniernuten 22, 23, 24, 25 und 26 aufweisen. Dabei sind bei dem dargestellten Ausführungsbeispiel die an den Schmalseiten der Fassungen 18, 19, 2o und 21 ausgebildeten Nuten 26, 27, 28, 29 in ihrer Lage relativ zu den angrenzenden Fassungswänden ungleich angeordnet, um eine eindeutige Zuordnung von Stecker 3 und der jeweiligen Fassung 18, 19, 2o und 21 zu erzielen. öffnungen 3o, 31, 32 und 33 dienen dem Einführen der an den Steckern 3 wippenartig angeformten Riegel 34, die, wenn die Stecker 3 in die jeweiligen Fassungen 18, 19, 2o und 21 eingesetzt sind, an geeigneten, im Steckersockel 4 ausgebildeten Hinterschnitten eingerastet -sind. Außerdem ist an dem Steckersockel 4 eine umlaufende Vertiefung 35 mit einem diese begrenzenden Rand 36 ausgeformt. Als labyrinthbildende Gegenform hierzu sind an der Abdeckung 37 des Meßgerätes, welche eine dem Steckersockel 4 zugeordnete Öffnung 38 aufweist, ein die Öffnung 38 begrenzender Rand 39 und in einem im wesentlichen gleich bleibenden Abstand zu dem Rand 39 eine umlaufende Rippe 40 angeformt.As shown in FIG. 2 can also be seen, four sockets 18, 19, 2 0 , 21 are formed in the plug base 4, the walls of which, according to the unspecified designs on the housings of the plugs 3, respectively have guide or positioning grooves 22, 23, 24, 25 and 26 exhibit. In the illustrated embodiment, the grooves 26, 27, 28, 29 formed on the narrow sides of the sockets 18, 19, 2o and 21 are arranged unevenly in their position relative to the adjacent socket walls in order to provide a clear assignment of connector 3 and the respective socket 18, 19, 2o and 21 to achieve. Openings 3o, 31, 32 and 33 are used to insert the latches 34 which are formed like a rocker on the plugs 3 and which, when the plugs 3 are inserted into the respective sockets 18, 19, 2o and 21, snap into suitable undercuts formed in the plug base 4 -are. Except a circumferential recess 35 is formed on the plug base 4 with an edge 36 delimiting it. As a labyrinth-forming counterform to this, an edge 38 delimiting the opening 38 and a circumferential rib 40 are formed on the cover 37 of the measuring device, which has an opening 38 assigned to the plug base 4, and at a substantially constant distance from the edge 39.

Am Rande sei noch erwähnt, daß die beiden mittels jeweils eines Filmscharniers 41 mit dem Gehäuse des Steckers 3 gelenkig verbundenen Klappen 42 und 43 nach innen weisende Nocken tragen, die im mit dem Gehäuse verrasteten Zustand der Klappen 42 und 43 in die Leiterkanäle - einer ist mit 44 bezeichnet - eingreifen und in den Stecker eingelegte, mit Kontaktbuchsen versehene Leitungsenden punktförmig festhalten, so daß die Leitungsenden im Steckergehäuse kipp- und somit anpassungsfähig gehaltert sind.As a side note it should also be mentioned that the two flaps 42 and 43, which are articulated by means of a film hinge 41 to the housing of the plug 3, carry inwardly facing cams which, when the flaps 42 and 43 are locked into the housing, are one in the conductor channels designated with 44 - intervene and hold in place in the plug inserted, provided with contact sockets line ends, so that the line ends in the plug housing are tilted and thus held adaptable.

Die gemäß FIG. 2 dargestellte Meßgerätearchitektur zeigt beispielsweise ein tragendes Gehäusebauteil 45, mit dem eine der Einfachheit halber nicht bestückt dargestellte Montageplatte 46 und die ebenfalls bauteilefrei dargestellte Leiterplatte 1 unter Verwendung mehrerer, gehäusefester Gewindebolzen 47 und diesen zugeordneten Distanzhülsen 48 sowie Muttern 49 fest verbunden sind. Wie ferner aus FIG. 2 ersichtlich ist, sind in dem mit der Leiterplatte 1 verrasteten Steckersockel 4 vier Stecker 3 eingesetzt, von denen einer beispielsweise die Energieversorgungsleitungen, andere unterschiedliche Meßwertein- und -ausgänge sowie Leitungen für vom jeweiligen Meßwert abhängige Signale und einer z. B. Leitungen für Zusatzinformationen, kumulierte Daten, Meßbereichsumschaltsignale und dergl. kuppeln. Eine an der mit dem tragenden Gehäusebauteil 45 verbundenen Abdeckung37 befestigte und plombierbare, kammartige Haube 50 dient einerseits den Steckern 3 als Zugriffssicherung, andererseits der Leitungsbündelung. Mit 51 und 52 sind im Stecker 3 gehalterte Kontaktbuchsen bezeichnet, während 53 ein geeignetes, in den Formschluß zwischen Abdeckung 37 und Steckersockel 4 eingefügtes Dichtungsmaterial darstellt.The according to FIG. The measuring device architecture shown in FIG. 2 shows, for example, a load-bearing housing component 45, with which a mounting plate 46, which is not shown for the sake of simplicity, and the circuit board 1, also shown free of components, are firmly connected using a plurality of housing-fixed threaded bolts 47 and spacer sleeves 48 and nuts 49 assigned to them. As further shown in FIG. 2 can be seen, four plugs 3 are used in the plug-in socket 4, which is latched to the circuit board 1, one of which, for example, the power supply lines, other different measured value inputs and outputs and lines for signals dependent on the respective measured value and a z. B. Coupling lines for additional information, accumulated data, measuring range switching signals and the like. A comb-like hood 50 fastened and sealable to the cover 37 connected to the supporting housing component 45 serves on the one hand for the plugs 3 as access protection and on the other hand for bundling the lines. With 51 and 52 are in Connector 3 designated contact sockets, while 53 represents a suitable sealing material inserted into the form fit between cover 37 and connector base 4.

In dem zur Verdeutlichung der Form des Steckersockels 4 dargestellten Schnitt gemäß FIG. 3 bezeichnet 54 den dem Einrasten des Riegels 34 dienenden Hinterschnitt, während den dem Durchführen und Halten der Kontaktzungen 2 dienenden Schlitzen 12 im Boden 11 relativ tiefe Einsenkungen 55 zugeordnet sind, die ein zügiges und bezüglich der Kontaktzungen 2 beschädigungsfreies Montieren des Steckersockels 4 gewährleisten.In the section shown to illustrate the shape of the connector base 4 according to FIG. 3 designates 54 the undercut which serves to engage the latch 34, while the slots 12 in the base 11 which serve to guide and hold the contact tongues 2 are assigned relatively deep depressions 55 which ensure a quick and damage-free assembly of the plug base 4 with respect to the contact tongues 2.

Claims (3)

1. Anordnung einer Steckverbindung an einem Meßgerät, dessen Rückseite durch eine Abdeckung abgeschlossen ist, welche eine die Verbindung von geräteseitigen Kontaktelementen mit wenigstens einem Stecker gestattende öffnung aufweist, dadurch gekennzeichnet, daß die geräteseitigen Kontaktelemente (2) unmittelbar an einer im Meßgerät befestigten Leiterplatte (1) angeordnet sind, daß ein sämtlichen Kontaktelementen (2) zugeordneter Stekkersockel (4) vorgesehen ist, in welchem eine Fassung (z. B. 18) mit den Kontaktelementen (2) zugeordneten Öffnungen (12) und nur eine einzige Verbindungsstellung von Stecker (3) und Steckersockel (4) zulassende Wandkonturen (22, 23, 24, 25, 26) ausgeformt ist und daß der Steckersockel (4) einerseits mit der Leiterplatte (1) rastbar verbindbar, andererseits derart ausgebildet ist, daß gegenüber dem Rand (39) der in der Abdeckung (37) befindlichen Öffnung (38) eine formschlüssige Zuordnung gegeben ist. 1. Arrangement of a plug connection on a measuring device, the rear side of which is closed by a cover which has an opening allowing the connection of device-side contact elements with at least one plug, characterized in that that the device-side contact elements (2) are arranged directly on a circuit board (1) fastened in the measuring device, that a plug base (4) assigned to all contact elements (2) is provided, in which a socket (z. B. 18) with openings (12) assigned to the contact elements (2) and only a single connection position of the plug (3) and plug base ( 4) permitting wall contours (22, 23, 24, 25, 26) is formed and that the plug base (4) can be connected to the circuit board (1) in a snap-fit manner on the one hand, and on the other hand is designed in such a way that there is a positive assignment with respect to the edge (39) of the opening (38) in the cover (37). 2. Anordnung nach Anspruch 1,
dadurch gekennzeichnet,
daß in dem Steckersockel (4) mehrere Fassungen (18, 19, 20, 21) mit ungleich geformten Wandkonturen (26, 27, 28, 29) ausgebildet sind.2. Arrangement according to claim 1,
characterized,
that several sockets (18, 19, 2 0 , 21) with unevenly shaped wall contours (26, 27, 28, 29) are formed in the plug base (4). 3. Anordnung nach Anspruch 1,
dadurch gekennzeichnet,
daß an dem Steckersockel (4) einerseits ein Positionierzapfen (5), mehrere Distanzansätze (13, 14, 15, 16) sowie wenigstens zwei Riegel (7, 8),andererseits eine umlaufende, zusammen mit einem in geeigneter Weise an der Öffnung (38) der Abdeckung (37) ausgeformten Rand (39) eine Labyrinthdichtung bildende Vertiefung (35) ausgebildet sind.3. Arrangement according to claim 1,
characterized,
that on the plug base (4) on the one hand a positioning pin (5), a plurality of spacer lugs (13, 14, 15, 16) and at least two bars (7, 8), on the other hand a circumferential one, together with a suitably at the opening (38 ) the cover (37) formed edge (39) formed a labyrinth seal recess (35).
EP85101324A 1984-02-24 1985-02-08 Mounting of a connector to a measuring device Expired EP0153632B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3406741 1984-02-24
DE19843406741 DE3406741A1 (en) 1984-02-24 1984-02-24 ARRANGEMENT OF A CONNECTOR ON A MEASURING DEVICE

Publications (3)

Publication Number Publication Date
EP0153632A2 true EP0153632A2 (en) 1985-09-04
EP0153632A3 EP0153632A3 (en) 1987-02-04
EP0153632B1 EP0153632B1 (en) 1989-06-07

Family

ID=6228733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101324A Expired EP0153632B1 (en) 1984-02-24 1985-02-08 Mounting of a connector to a measuring device

Country Status (3)

Country Link
EP (1) EP0153632B1 (en)
JP (1) JPS60142474U (en)
DE (2) DE3406741A1 (en)

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EP0232150A2 (en) * 1986-01-30 1987-08-12 Crane Electronics, Inc. Multi-row modular electrical connector
FR2618952A1 (en) * 1987-07-31 1989-02-03 Labinal Electrical-connection box
DE8905748U1 (en) * 1989-05-08 1990-09-06 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal, De
GB2284312A (en) * 1993-11-26 1995-05-31 Mecanismos Aux Ind Modular electrical connector system
DE29617238U1 (en) * 1996-10-04 1996-11-21 Roland Man Druckmasch Plug connection for an assembly located under a cover
DE29721908U1 (en) * 1997-12-11 1998-02-12 Kostal Leopold Gmbh & Co Kg Arrangement relating to an electrical and / or electronic component-carrying electrical board with an electrical connector and a cover
WO2001078197A1 (en) 2000-04-07 2001-10-18 Conti Temic Microelectronic Gmbh Electronic module
EP2009747A1 (en) * 2007-06-28 2008-12-31 Delphi Technologies, Inc. Electrical connection system having wafer connectors

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Publication number Priority date Publication date Assignee Title
DE9104069U1 (en) * 1991-04-04 1991-06-20 Buderus Heiztechnik Gmbh, 6330 Wetzlar, De
JP4275163B2 (en) 2006-09-22 2009-06-10 株式会社アドバンテスト Connector assembly, receptacle-type connector and interface device
DE102009038062B4 (en) * 2009-08-19 2011-12-22 Harting Electric Gmbh & Co. Kg Connecting component with at least two outwardly acting coupling elements and method for producing such a connection component
DE102020101812A1 (en) 2020-01-27 2021-07-29 Harting Electric Gmbh & Co. Kg Add-on housing

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232150A2 (en) * 1986-01-30 1987-08-12 Crane Electronics, Inc. Multi-row modular electrical connector
EP0232150A3 (en) * 1986-01-30 1988-12-28 Crane Electronics, Inc. Multi-row modular electrical connector
FR2618952A1 (en) * 1987-07-31 1989-02-03 Labinal Electrical-connection box
DE8905748U1 (en) * 1989-05-08 1990-09-06 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal, De
GB2284312B (en) * 1993-11-26 1997-11-19 Mecanismos Aux Ind Modular connector system
GB2284312A (en) * 1993-11-26 1995-05-31 Mecanismos Aux Ind Modular electrical connector system
DE29617238U1 (en) * 1996-10-04 1996-11-21 Roland Man Druckmasch Plug connection for an assembly located under a cover
EP0834966A2 (en) * 1996-10-04 1998-04-08 MAN Roland Druckmaschinen AG Plug connector for a circuit board assembly below a cover
EP0834966A3 (en) * 1996-10-04 1999-12-01 MAN Roland Druckmaschinen AG Plug connector for a circuit board assembly below a cover
DE29721908U1 (en) * 1997-12-11 1998-02-12 Kostal Leopold Gmbh & Co Kg Arrangement relating to an electrical and / or electronic component-carrying electrical board with an electrical connector and a cover
WO2001078197A1 (en) 2000-04-07 2001-10-18 Conti Temic Microelectronic Gmbh Electronic module
US6739893B2 (en) 2000-04-07 2004-05-25 Conti Temic Microelectronic Gmbh Electronic module
EP2009747A1 (en) * 2007-06-28 2008-12-31 Delphi Technologies, Inc. Electrical connection system having wafer connectors
US7485012B2 (en) 2007-06-28 2009-02-03 Delphi Technologies, Inc. Electrical connection system having wafer connectors

Also Published As

Publication number Publication date
DE3406741A1 (en) 1985-08-29
EP0153632A3 (en) 1987-02-04
DE3570954D1 (en) 1989-07-13
JPS60142474U (en) 1985-09-20
JPH0447906Y2 (en) 1992-11-11
EP0153632B1 (en) 1989-06-07

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