EP0878870B1 - High Frequency coaxial connector - Google Patents

High Frequency coaxial connector Download PDF

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Publication number
EP0878870B1
EP0878870B1 EP98104945A EP98104945A EP0878870B1 EP 0878870 B1 EP0878870 B1 EP 0878870B1 EP 98104945 A EP98104945 A EP 98104945A EP 98104945 A EP98104945 A EP 98104945A EP 0878870 B1 EP0878870 B1 EP 0878870B1
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EP
European Patent Office
Prior art keywords
circuit board
soldering
coaxial
coaxial connector
annular collar
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
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EP98104945A
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German (de)
French (fr)
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EP0878870A1 (en
Inventor
Edgard Acke
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TE Connectivity Solutions GmbH
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Tyco Electronics Logistics AG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/50—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • the invention relates to an RF coaxial connector part for fixed mounting to a printed circuit board, consisting of a metallic housing part with solder terminals and a metallic plug-in part in the form of a coaxial connector or a Koaxialbuchse, wherein the solder terminals in the form of solder pins from the bottom of the Stand out housing part and in which the solder pins when mounting the housing part with its bottom on the circuit board in them board side associated electrical connections in the form of contacted mounting holes intervene in which they are soldered in a Schwallötbad to the circuit board.
  • RF coaxial connector parts of this type are known, for example, from the reference SIEMENS: "HF Connectors Data Book 1990", page 4,13.
  • SIEMENS "HF Connectors Data Book 1990”
  • the underside of the housing part of the coaxial connector part must not sit well on the printed circuit board.
  • this is achieved by a so-called “offset” in the form of a one-sided approach of the solder pins for the coaxial outer conductor or the reference potential of the coaxial connector part at the bottom of its housing part.
  • EP 0 189 846 A a connector part for a coaxial cable is described in which a connector is soldered to a printed circuit board by means of solder pins which engage in corresponding mounting holes. A coaxial cable is subsequently inserted into a sleeve so that a central conductor contacts the centrally soldered conductor terminal. Furthermore, a flat collar is provided on which the solder pins are arranged frontally.
  • the invention has for its object to provide a further design solution for a coaxial connector part of the aforementioned type, which also allows a perfect soldering of the solder pins of the coaxial connector part in the contacted mounting holes of the circuit board to create good RF-tightness, but without the mentioned Offset and the related disadvantages described.
  • the invention is based on the finding that it is sufficient when soldering for a good flow of the solder through the contacted mounting holes of the circuit board with the solder pins of the coaxial connector part when the solder can emerge at least at two opposite locations of the contacted mounting holes on the top of the circuit board. This requirement is readily ensured in the use of the annular collar when the solder pins for the coaxial outer conductor or the reference potential of the coaxial connector part are arranged on the inner or outer wall of the annular collar.
  • a straight coaxial connector part has a metallic housing part, in which at the top 3, a male part 4 is inserted or screwed in the form of a coaxial connector, of which only the coaxial outer conductor 5 is visible.
  • solder pins 7 and 8 engages the housing part 2 of the coaxial connector part 1 in electrical connections performing contacted mounting holes 9 a circuit board 10 a.
  • an offset representing approach 11 is provided on the underside 6 of the housing part 2, via which the coaxial connector part 1 is seated on the circuit board 10.
  • FIGS. 2 and 3 show in various perspective views of a coaxial connector part 15, which is designed here as an angle connector part.
  • the metallic housing part 16 of this coaxial connector part 15 merges on its underside 17 into a self-contained annular collar 18.
  • the solder pins 19 for the coaxial outer conductor 5 and the reference potential of the coaxial connector part 15 protrude from the free end face 20 of the annular collar 18 and are in their length relative to the solder pin 21 for in Fig. 3 visible coaxial inner conductor 22 by the height H of the annular collar 18 shorter.
  • the protruding from the free end face of the ring collar solder pins 19 have an approximately square cross-section with a side length equal to the wall thickness W - see Fig. 5 - Of the annular collar 18 is.
  • FIGS. 2 and 3 can be seen in this design is achieved that the coaxial connector part 15, which rests on its connection with the circuit board 10 with the free end 20 of its annular collar 18 on the circuit board top 12, the contacted mounting holes 9 on the circuit board top 12 is not completely covered. Rather, the mounting holes 9 remain peripherally on two opposite sides of the solder pins 19, namely on the side of the inner and outer walls of the annular collar 18 without cover.
  • the solder can also rise unhindered from the circuit board base 14 in the mounting holes 9 up to the circuit board top 12, especially since the clearance for the solder in the round mounting holes 9 is increased by the approximately square cross-section of the solder pins 19 .
  • the contacted mounting holes 9 expediently have a diameter of 1 mm.
  • a residual gap of about 0.1 mm In united with the circuit board 10 state of the coaxial connector part 15 remains between the free end 20 of the annular collar 18 of its housing part 16 and the circuit board top 12, a residual gap of about 0.1 mm. The achieved despite this residual gap RF-tightness is in the order of 60 db. In special cases, HF-impermeability of> 100 db may be required. In this case, it is necessary to eliminate even this residual gap. In a simple way, this is possible because of the in Fig. 3 dashed lines shown on the circuit board top surface 12 ring portion 23 is designed as a soldering surface and the annular collar 18 with its free end face 20 in the terminal is soldered to the Schwallötvorgang on the circuit board 10.
  • annular groove 24 is provided in the outer wall of the annular collar 18.
  • the annular groove 24 is particularly clearly visible. It has about the same depth and width.
  • the wall thickness W of the annular collar 18 is greatly reduced to the wall thickness W1 and thus realized an effective thermal resistance.
  • the annular groove could also be provided on the inside of the annular collar. However, this would require additional measures to adjust the characteristic impedance of the coaxial line of the coaxial connector part at this point, which is avoided by attaching the annular groove on the outside of the annular collar.
  • the coaxial connector part with ring collar on the bottom of its housing part can be designed either as a straight coaxial connector part or as a coaxial-angle connector part. It can also be designed either as a coaxial plug part or coaxial socket part. For this it is, based on the in the FIGS. 2 and 3 shown coaxial connector part only required to replace the inserted into the housing part 16, a plug part performing male part 4 by a female part.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

The plug connector consists of a metallic casing (15) with soldering terminals and a metallic connector part (4) in the form of a coaxial plug and/or a coaxial socket. The soldering terminals extend, in the form of soldering pins (19, 21), from the bottom face (17) of the casing (16). The soldering pins engage with associated electric connections provided in the form of contacted installation holes (4) on the circuit board, when the casing is mounted on the circuit board. The soldering pins are soldered to the circuit board (10) in a soldering bath. The casing comprises an annular collar (18) at its bottom face, in a concentric arrangement with a soldering pin for an inner coaxial conductor (22). The soldering pins (19) for outer coaxial conductors (5) and/or the earthing potential of the coaxial connector are distributed around the annular collar.

Description

Die Erfindung bezieht sich auf einen HF-Koaxial-Steckverbinderteil für festen Anbau an eine Leiterplatte, bestehend aus einem metallischen Gehäuseteil mit Lötanschlüssen und einem metallischen Steckteil in Form eines Koaxialsteckers bzw. einer Koaxialbuchse, bei dem die Lötanschlüsse in Form von Lötstiften aus der Unterseite des Gehäuseteils herausstehen und bei dem die Lötstifte beim Aufsetzen des Gehäuseteils mit seiner Unterseite auf der Leiterplatte in ihnen leiterplattenseitig zugeordnete elektrische Anschlüsse in Form kontaktierter Montagelöcher eingreifen, in denen sie in einem Schwallötbad mit der Leiterplatte verlötet sind.The invention relates to an RF coaxial connector part for fixed mounting to a printed circuit board, consisting of a metallic housing part with solder terminals and a metallic plug-in part in the form of a coaxial connector or a Koaxialbuchse, wherein the solder terminals in the form of solder pins from the bottom of the Stand out housing part and in which the solder pins when mounting the housing part with its bottom on the circuit board in them board side associated electrical connections in the form of contacted mounting holes intervene in which they are soldered in a Schwallötbad to the circuit board.

Hf-Koaxial-Steckverbinderteile dieser Art sind beispielsweise durch die Literaturstelle SIEMENS: "HF-Steckverbinder Datenbuch 1990", Seite 4,13 bekannt. Um beim Verlöten der Lötstifte des Koaxial-Steckverbinderteils in den kontaktierten Montagelöchern der Leiterplatte stets ein einwandfreies Lötergebnis zu erzielen, muß gewährleistet sein, daß das Lot störungsfrei von unten durch die Montagelöcher mit den Lötstiften in der Leiterplatte nach oben fließen kann. Um dies zu erreichen, darf die Unterseite des Gehäuseteils des Koaxial-Steckverbinderteils nicht satt auf der Leiterplatte aufsitzen. Wie die angeführte SIEMENS-Literaturstelle zeigt, wird dies durch einen sogenannten "Offset" in Form eines einseitigen Ansatzes der Lötstifte für den Koaxial-Außenleiter bzw. das Bezugspotential des Koaxial-Steckverbinderteils an der Unterseite seines Gehäuseteils erreicht. Nachteilig an dieser Lösung ist der Umstand, daß durch diesen Offset zwischen dem Koaxial-Steckverbinderteil und der Leiterplatte ein Luftspalt von ca. 0,5 mm vorhanden ist, durch den die HF-Dichtigkeit, auch wenn hieran nur geringe Anforderungen zu stellen sind, zwischen dem Koaxial-Steckverbinderteil und der Leiterplatte nicht mehr gewährleistet ist. Um die erforderliche HF-Dichtigkeit zu erreichen, muß dieser Luftspalt daher nachträglich durch Anlöten von Dichtungsplättchen oder Dichtungsfolien verschlossen werden.RF coaxial connector parts of this type are known, for example, from the reference SIEMENS: "HF Connectors Data Book 1990", page 4,13. To always achieve a perfect soldering when soldering the solder pins of the coaxial connector part in the contacted mounting holes of the circuit board, it must be ensured that the solder can flow smoothly from below through the mounting holes with the solder pins in the circuit board upwards. To achieve this, the underside of the housing part of the coaxial connector part must not sit well on the printed circuit board. As the cited SIEMENS reference shows, this is achieved by a so-called "offset" in the form of a one-sided approach of the solder pins for the coaxial outer conductor or the reference potential of the coaxial connector part at the bottom of its housing part. Disadvantageous This solution is the fact that by this offset between the coaxial connector part and the circuit board, an air gap of about 0.5 mm is present, through which the RF-tightness, even if there are only small demands to make between the coaxial Connector part and the circuit board is no longer guaranteed. In order to achieve the required RF-tightness, this air gap must therefore be subsequently closed by soldering of sealing plates or sealing foils.

In EP 0 189 846 A ist ein Steckverbinderteil für ein Koaxialkabel beschrieben, bei dem ein Verbinder auf einer Leiterplatte mittels Lötstiften, die in entsprechende Montagelöcher eingreifen, verlötet wird. Ein Koaxialkabel wird nachfolgend in eine Hülse eingeführt, so dass ein zentraler Leiter mit dem zentral verlöteten Leiteranschluss in Kontakt tritt. Weiterhin ist ein flacher Kragen vorgesehen, an dem die Lötstifte stirnseitig angeordnet sind.In EP 0 189 846 A a connector part for a coaxial cable is described in which a connector is soldered to a printed circuit board by means of solder pins which engage in corresponding mounting holes. A coaxial cable is subsequently inserted into a sleeve so that a central conductor contacts the centrally soldered conductor terminal. Furthermore, a flat collar is provided on which the solder pins are arranged frontally.

Der Erfindung liegt die Aufgabe zugrunde, für ein Koaxial-Steckverbinderteil der vorgenannten Art eine weitere konstruktive Lösung anzugeben, die ebenfalls ein einwandfreies Verlöten der Lötstifte des Koaxial-Steckverbinderteils in den kontaktierten Montagelöchern der Leiterplatte zur Schaffung guter HF-Dichtigkeit zuläßt, jedoch ohne den erwähnten Offset und den hiermit verbundenen geschilderten Nachteilen auskommt.The invention has for its object to provide a further design solution for a coaxial connector part of the aforementioned type, which also allows a perfect soldering of the solder pins of the coaxial connector part in the contacted mounting holes of the circuit board to create good RF-tightness, but without the mentioned Offset and the related disadvantages described.

Diese Aufgabe wird gemäß der Erfindung mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved according to the invention with the features of claim 1.

Der Erfindung liegt die Erkenntnis zugrunde, daß es beim Verlöten für einen guten Durchfluß des Lots durch die kontaktierten Montagelöcher der Leiterplatte mit den Lötstiften des Koaxial-Steckverbinderteils ausreichend ist, wenn das Lot wenigstens an zwei sich gegenüberliegenden Stellen der kontaktierten Montagelöcher an der Oberseite der Leiterplatte austreten kann. Diese Voraussetzung ist bei der Verwendung des Ringkragens ohne weiteres gewährleistet, wenn die Lötstifte für den Koaxial-Außenleiter bzw. das Bezugspotential des Koaxial-Steckverbinderteils an der Innen- oder Außenwand des Ringkragens angeordnet werden.The invention is based on the finding that it is sufficient when soldering for a good flow of the solder through the contacted mounting holes of the circuit board with the solder pins of the coaxial connector part when the solder can emerge at least at two opposite locations of the contacted mounting holes on the top of the circuit board. This requirement is readily ensured in the use of the annular collar when the solder pins for the coaxial outer conductor or the reference potential of the coaxial connector part are arranged on the inner or outer wall of the annular collar.

Eine besonders vorteilhafte Ausgestaltung des Gegenstandes nach Patentanspruch 1, bei der die Lötstifte für den Koaxial-Außenleiter bzw. das Bezugspotential des Koaxial-Steckverbinderteils auf der freien Stirnseite des Ringkragens angeordnet sind, ist im Patentanspruch 2 angegeben.A particularly advantageous embodiment of the object according to claim 1, wherein the solder pins for the coaxial outer conductor or the reference potential of the coaxial connector part are arranged on the free end face of the annular collar, is specified in claim 2.

Weitere zweckmäßige Ausgestaltungen des Gegenstandes nach den Patentansprüchen 1 und 2 sind in den Patentansprüchen 3 bis 11 angegeben.Further expedient embodiments of the article according to claims 1 and 2 are specified in the claims 3 to 11.

Anhand von in der Zeichnung dargestellten Ausführungsbeispielen soll die Erfindung im folgenden noch näher erläutert werden. In der Zeichnung bedeuten

Fig. 1
eine bekannte Ausführungsform eines mit einer Leiterplatte verbunden Koaxial-Steckverbinderteils,
Fig. 2
eine bevorzugte Ausführungsform eines mit einer Leiterplatte zu verbindenden Koaxial-Steckverbinderteils in perspektivischer Darstellung,
Fig. 3
die Ausführungsform nach Fig. 2 in einer anderen perspektivischen Darstellung,
Fig. 4
das Gehäuseteil des in den Fig. 2 und 3 dargestellten Koaxial-Steckverbinderteils in Sicht von der Vorderseite.
Fig. 5
der Schnitt AA des Gehäuseteils nach Fig. 4.
Based on embodiments shown in the drawings, the invention will be explained in more detail below. In the drawing mean
Fig. 1
a known embodiment of a connected to a circuit board coaxial connector part,
Fig. 2
a preferred embodiment of a to be connected to a printed circuit board coaxial connector part in perspective view,
Fig. 3
the embodiment according to Fig. 2 in another perspective view,
Fig. 4
the housing part of the in the FIGS. 2 and 3 shown coaxial connector part in view from the front.
Fig. 5
the section AA of the housing part after Fig. 4 ,

Die in Fig. 1 dargestellte bekannte Ausführungsform eines geraden Koaxial-Steckverbinderteils weist ein metallisches Gehäuseteil auf, in das an der Oberseite 3 ein Steckteil 4 in Form eines Koaxialsteckers eingesetzt bzw. eingeschraubt ist, von dem nur der Koaxial-Außenleiter 5 sichtbar ist. An der Unterseite 6 des Gehäuseteils 2 sind einerseits randseitig am Umfang verteilt vier Lötstifte 7 für den Koaxial-Außenleiter 5 bzw. das Bezugspotential des Koaxial-Steckverbinderteils 1 und andererseits konzentrisch hierzu der Lötstift 8 für den nicht sichtbaren Koaxial-Innenleiter vorgesehen. Mit seinen Lötstiften 7 und 8 greift das Gehäuseteil 2 des Koaxial-Steckverbinderteils 1 in elektrische Anschlüsse darstellende kontaktierte Montagelöcher 9 einer Leiterplatte 10 ein. Jeweils an einer Innenseite der Lötstifte 7 ist an der Unterseite 6 des Gehäuseteils 2 ein einen Offset darstellender Ansatz 11 vorhanden, über die das Koaxial-Steckverbinderteil 1 auf der Leiterplatte 10 aufsitzt.In the Fig. 1 shown known embodiment of a straight coaxial connector part has a metallic housing part, in which at the top 3, a male part 4 is inserted or screwed in the form of a coaxial connector, of which only the coaxial outer conductor 5 is visible. On the underside 6 of the housing part 2 on the one hand peripherally distributed around the circumference four solder pins 7 for the coaxial outer conductor 5 and the reference potential of the coaxial connector part 1 and on the other hand concentric to the solder pin 8 is provided for the non-visible coaxial inner conductor. With its solder pins 7 and 8 engages the housing part 2 of the coaxial connector part 1 in electrical connections performing contacted mounting holes 9 a circuit board 10 a. In each case on an inner side of the solder pins 7, an offset representing approach 11 is provided on the underside 6 of the housing part 2, via which the coaxial connector part 1 is seated on the circuit board 10.

Durch diese Ansätze 11 ergibt sich zwischen der Unterseite 6 des Gehäuseteils 2 und der Leiterplattenoberseite 12 ein unerwünschter Luftspalt 13, durch den die im allgemeinen zu fordernde HF-Dichtigkeit zwischen der Unterseite 6 des Gehäuseteils 2 des Koaxial-Steckverbinderteils 1 und der Leiterplattenoberseite 13 nicht gewährleistet ist. Wie in der Beschreibungseinleitung bereits ausgeführt wurde, ist dieser Offset aber erforderlich, um sicherzustellen, daß beim Verlöten der Lötstifte 7 und 8 in den kontaktierten Montagelöchern 9 das Lot beim Schwallöten von der Leiterplattenunterseite 14 her in ausreichendem Maße in den Montagelöchern 9 nach oben bis zur Leiterplattenoberseite 12 aufsteigen kann.Through these approaches 11 results between the bottom 6 of the housing part 2 and the circuit board top 12, an undesirable air gap 13 through which the generally demanding to RF leakage between the bottom 6 of the housing part 2 of the coaxial connector part 1 and the circuit board top 13 is not guaranteed is. As in the introduction to the description has already been carried out, but this offset is required to ensure that when soldering the solder pins 7 and 8 in the contacted mounting holes 9, the solder in the wave soldering from the circuit board base 14 forth sufficiently in the mounting holes 9 up to the circuit board top 12 can rise ,

Die neue Ausführungsform für ein solches Koaxial-Steckverbinderteil, von dem eine bevorzugtes Ausführungsbeispiel in den Fig. 2 bis 5 dargestellt ist, vermeidet in vorteilhafter Weise diesen unerwünschten Luftspalt 13, ohne daß hierdurch das erforderliche Verlöten der Lötstifte 7 und 8 in den kontaktierten Montagelöchern 9 der Leiterplatte 10 beeinträchtigt wird.The new embodiment of such a coaxial connector part, of which a preferred embodiment in the Fig. 2 to 5 is shown advantageously avoids this unwanted air gap 13, without thereby the required soldering of the solder pins 7 and 8 in the contacted mounting holes 9 of the circuit board 10 is impaired.

Die Fig. 2 und 3 zeigen in verschiedenen perspektivischen Ansichten ein Koaxial-Steckverbinderteil 15, das hier als Winkel-Steckverbinderteil gestaltet ist. Das metallische Gehäuseteil 16 dieses Koaxial-Steckverbinderteils 15 geht an seiner Unterseite 17 in einen in sich geschlossenen Ringkragen 18 über. Die Lötstifte 19 für den Koaxial-Außenleiter 5 bzw. das Bezugspotential des Koaxial-Steckverbinderteils 15 ragen aus der freien Stirnseite 20 des Ringkragens 18 heraus und sind in ihrer Länge gegenüber dem Lötstift 21 für den in Fig. 3 sichtbaren Koaxial-Innenleiter 22 um die Höhe H des Ringkragens 18 kürzer. Die aus der freien Stirnseite des Ringkragens herausragenden Lötstifte 19 haben einen annähernd quadratischen Querschnitt mit einer Seitenlänge, die gleich der Wandstärke W - siehe Fig. 5 - des Ringkragens 18 ist.The FIGS. 2 and 3 show in various perspective views of a coaxial connector part 15, which is designed here as an angle connector part. The metallic housing part 16 of this coaxial connector part 15 merges on its underside 17 into a self-contained annular collar 18. The solder pins 19 for the coaxial outer conductor 5 and the reference potential of the coaxial connector part 15 protrude from the free end face 20 of the annular collar 18 and are in their length relative to the solder pin 21 for in Fig. 3 visible coaxial inner conductor 22 by the height H of the annular collar 18 shorter. The protruding from the free end face of the ring collar solder pins 19 have an approximately square cross-section with a side length equal to the wall thickness W - see Fig. 5 - Of the annular collar 18 is.

Wie die Fig. 2 und 3 erkennen lassen, wird bei dieser Gestaltung erreicht, daß das Koaxial-Steckverbinderteil 15, das bei seiner Verbindung mit der Leiterplatte 10 mit der freien Stirnseite 20 seines Ringkragens 18 auf der Leiterplattenoberseite 12 aufsitzt, die kontaktierten Montagelöcher 9 an der Leiterplattenoberseite 12 nicht vollständig abdeckt. Die Montagelöcher 9 bleiben vielmehr randseitig jeweils auf zwei einander gegenüberliegenden Seiten der Lötstifte 19, nämlich auf seiten der Innen- und Außenwand des Ringkragens 18 ohne Abdeckung. Dadurch ist gewährleistet, daß beim Schwallöten das Lot auch hier ungehindert von der Leiterplattenunterseite 14 in den Montagelöchern 9 nach oben bis zur Leiterplattenoberseite 12 aufsteigen kann, zumal der Freiraum für das Lot in den runden Montagelöchern 9 durch den annähernd quadratischen Querschnitt der Lötstifte 19 vergrößert ist. Bei einer Seitenlänge von 0,6 mm des annähernd quadratische Querschnitts der Lötstifte 19 haben die kontaktierten Montagelöcher 9 zweckmäßig einen Durchmesser von 1 mm.As the FIGS. 2 and 3 can be seen in this design is achieved that the coaxial connector part 15, which rests on its connection with the circuit board 10 with the free end 20 of its annular collar 18 on the circuit board top 12, the contacted mounting holes 9 on the circuit board top 12 is not completely covered. Rather, the mounting holes 9 remain peripherally on two opposite sides of the solder pins 19, namely on the side of the inner and outer walls of the annular collar 18 without cover. This ensures that when soldering, the solder can also rise unhindered from the circuit board base 14 in the mounting holes 9 up to the circuit board top 12, especially since the clearance for the solder in the round mounting holes 9 is increased by the approximately square cross-section of the solder pins 19 , With a side length of 0.6 mm of approximately square cross-section of the solder pins 19, the contacted mounting holes 9 expediently have a diameter of 1 mm.

Im mit der Leiterplatte 10 vereinigten Zustand des Koaxial-Steckverbinderteils 15 verbleibt zwischen der freien Stirnseite 20 des Ringkragens 18 seines Gehäuseteils 16 und der Leiterplattenoberseite 12 ein Restspalt von ca. 0,1 mm. Die trotz dieses Restspaltes erzielte HF-Dichtigkeit liegt in der Größenordnung von 60 db. In besonderen Anwendungsfällen können HF-Dichtigkeiten von > 100 db gefordert sein. In diesem Falle ist es erforderlich, auch noch diesen Restspalt zu beseitigen. In einfacher Weise ist dies dadurch möglich, daß der in Fig. 3 auf der Leiterplattenoberseite 12 gestrichelt dargestellte Ringbereich 23 als Lötfläche gestaltet ist und der Ringkragen 18 mit seiner freien Stirnfläche 20 im Anschluß an den Schwallötvorgang an der Leiterplatte 10 angelötet wird.In united with the circuit board 10 state of the coaxial connector part 15 remains between the free end 20 of the annular collar 18 of its housing part 16 and the circuit board top 12, a residual gap of about 0.1 mm. The achieved despite this residual gap RF-tightness is in the order of 60 db. In special cases, HF-impermeability of> 100 db may be required. In this case, it is necessary to eliminate even this residual gap. In a simple way, this is possible because of the in Fig. 3 dashed lines shown on the circuit board top surface 12 ring portion 23 is designed as a soldering surface and the annular collar 18 with its free end face 20 in the terminal is soldered to the Schwallötvorgang on the circuit board 10.

Beim Anlöten des Koaxial-Steckverbinderteils 15 mit seinem Ringkragens 18 an die Leiterplatte 10 muß verhindert werden, daß die dem Ringkragen 18 auf seiten seiner freien Stirnseite 20 zugeführte Wärme zu rasch auf das Gehäuseteil 16 überfließt. Um dies zu verhindern, ist in der Außenwand des Ringkragens 18 eine Ringnut 24 vorgesehen. In den Fig. 4 und 5, in der das Gehäuseteil 16 mit seinem Ringkragen 18 nochmals vergrößert in Ansicht von vorn und im Schnitt dargestellt ist, ist die Ringnut 24 besonders gut erkennbar. Sie hat etwa gleiche Tiefe und Breite. Durch die Ringnut 24 wird die Wandstärke W des Ringkragens 18 auf die Wandstärke W1 stark reduziert und damit ein wirksamer Wärmewiderstand verwirklicht. Grundsätzlich könnte die Ringnut auch auf der Innenseite des Ringkragens vorgesehen werden. Hierdurch würden jedoch zusätzliche Maßnahmen zur Anpassung des Wellenwiderstandes der koaxialen Leitung des Koaxial-Steckverbinderteils an dieser Stelle erforderlich, was durch das Anbringen der Ringnut an der Außenseite des Ringkragens vermieden wird.When soldering the coaxial connector part 15 with its annular collar 18 to the circuit board 10 must be prevented that the ring collar 18 on the side of its free end 20 supplied heat overflows too quickly on the housing part 16. To prevent this, an annular groove 24 is provided in the outer wall of the annular collar 18. In the 4 and 5 , in which the housing part 16 is shown enlarged again with its annular collar 18 in front view and in section, the annular groove 24 is particularly clearly visible. It has about the same depth and width. Through the annular groove 24, the wall thickness W of the annular collar 18 is greatly reduced to the wall thickness W1 and thus realized an effective thermal resistance. In principle, the annular groove could also be provided on the inside of the annular collar. However, this would require additional measures to adjust the characteristic impedance of the coaxial line of the coaxial connector part at this point, which is avoided by attaching the annular groove on the outside of the annular collar.

Wie bereits der Vergleich der bekannten Ausführungsform nach Fig. 1 mit der bevorzugten Ausführungsform nach den Fig. 2 bis 5 zeigt, kann das Koaxial-Steckverbinderteil mit Ringkragen an der Unterseite seines Gehäuseteils wahlweise als gerades Koaxial-Steckverbinderteil oder als Koaxial-Winkel-Steckverbinderteil ausgeführt sein. Auch kann es wahlweise als Koaxial-Steckerteil oder Koaxial-Buchsenteil gestaltet sein. Hierzu ist es, bezogen auf das in den Fig. 2 und 3 dargestellte Koaxial-Steckverbinderteil lediglich erforderlich das in das Gehäuseteil 16 eingesetzte, ein Steckerteil darstellende Steckteil 4 durch ein Buchsenteil zu ersetzen.As already the comparison of the known embodiment according to Fig. 1 with the preferred embodiment of the Fig. 2 to 5 shows, the coaxial connector part with ring collar on the bottom of its housing part can be designed either as a straight coaxial connector part or as a coaxial-angle connector part. It can also be designed either as a coaxial plug part or coaxial socket part. For this it is, based on the in the FIGS. 2 and 3 shown coaxial connector part only required to replace the inserted into the housing part 16, a plug part performing male part 4 by a female part.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1, 151, 15
= Koaxial-Steckverbinderteil= Coaxial connector part
2, 162, 16
= Gehäuseteil= Housing part
33
= Oberseite= Top
44
= Steckteil= Plug-in part
55
= Koaxial-Außenleiter= Coaxial outer conductor
6, 176, 17
= Unterseite= Bottom
7, 8, 19, 217, 8, 19, 21
= Lötstift= Solder pin
99
= Montageloch= Mounting hole
1010
= Leiterplatte= Printed circuit board
1111
= Ansatz= Approach
1212
= Leiterplattenoberseite= PCB top
1313
= Luftspalt= Air gap
1414
= Leiterplattenunterseite= PCB underside
1818
= Ringkragen= Ring collar
2020
= Stirnseite= Front side
2222
= Koaxial-Innenleiter= Coaxial inner conductor
2323
= Ringbereich= Ring area
2424
= Ringnut= Annular groove
HH
= Höhe= Height
WW
= Wandstärke= Wall thickness
W1W1
= reduzierte Wandstärke= reduced wall thickness

Claims (11)

  1. An arrangement having a printed circuit board (10) and an RF coaxial connector (15) for fixed mounting on the printed circuit board (10), the RF coaxial connector consisting of a metal housing part (16) with soldering pads and a metal plug-in part (4) in the form of a coaxial plug or a coaxial socket, in which the soldering pads project from the underside (17) of the housing part (16) in the form of soldering pins (19, 21) and
    in which the soldering pins (19, 21), when the housing part (16) is positioned with its underside (17) on the printed circuit board (10), engage in electrical terminals assigned thereto on the printed circuit board in the form of contacted mounting holes (9), in which they are soldered to the printed circuit board (10) in a dip-soldering bath, characterised in that
    the housing part (16) develops on its underside (17) into an in itself closed annular collar (18) arranged concentrically with the soldering pin (21) for the coaxial inner conductor (22), said annular collar (18) being so constructed that, when it is seated on the printed circuit board, no air gap arises between the annular collar and the printed circuit board (10),
    the soldering pins (19) for the coaxial outer conductor (5) or the reference potential of the coaxial connector (15) are arranged distributed around the circumference of the annular collar (18),
    an annular region (23) arranged on an upper side (12) of the printed circuit board taking the form of a soldering surface and the annular collar (18) being soldered with its free end face (20) to the printed circuit board (10).
  2. An arrangement according to claim 1, characterised in that the soldering pins (19) for the coaxial outer conductor (5) or the reference potential of the coaxial connector (15) are arranged on the free end face (20) of the annular collar (18) and display, with regard to their dimensions in the radial direction of the annular collar, at least the wall thickness (W) thereof.
  3. An arrangement according to claims 1 and 2, characterised in that the soldering pins (19) for the coaxial outer conductor (5) or the reference potential of the coaxial connector (15) are shorter in length than the soldering pin (21) for the coaxial inner conductor (22) by the height of the annular collar (18).
  4. An arrangement according to any one of the preceding claims, characterised in that the contacted mounting holes (9) on the printed circuit board are round holes and the soldering pins (19) for the coaxial outer conductor (5) or the reference potential of the coaxial connector (15) have a square cross-section.
  5. An arrangement according to any one of the preceding claims, characterised in that
    the contacted mounting holes (9) on the printed circuit board are round and have a diameter of I mm and
    the soldering pins (19) for the coaxial outer conductor (5) or the reference potential of the coaxial connector (15) have an at least approximately square cross-section with a side length of 0,6 mm, which is identical to the wall thickness (W) of the annular collar (18).
  6. An arrangement according to any one of the preceding claims, characterised in that, to produce thermal resistance between the free end face (20) of the annular collar (18) and the actual housing part (16) of the coaxial connector (15), the annular collar (18) comprises an annular groove (24) reducing its wall thickness.
  7. An arrangement according to claim 6, characterised in that the annular groove (24) of the annular collar (18) is an external annular groove.
  8. An arrangement according to claims 6 or 7, characterised in that the annular groove (24) of the annular collar (18) has approximately identical depth and width.
  9. An arrangement according to any one of the preceding claims, characterised in that, for additional soldering of the residual gap between the free end face (20) of the annular collar (18) of the housing part (16) and the printed circuit board (10) and still present in the housing part (16) of the coaxial connector (15) when it is positioned on the printed circuit board (10), an annular region (23) designed as a soldering point is provided on said printed circuit board (10) in the positioning area.
  10. An arrangement according to any one of the preceding claims, characterised in that the RF coaxial connector takes the form of a straight coaxial connector.
  11. An arrangement according to any one of claims 1 to 9, characterised in that the RF coaxial connector takes the form of a right-angle coaxial connector.
EP98104945A 1997-05-16 1998-03-18 High Frequency coaxial connector Expired - Lifetime EP0878870B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19720678 1997-05-16
DE19720678A DE19720678C1 (en) 1997-05-16 1997-05-16 RF coaxial connector part

Publications (2)

Publication Number Publication Date
EP0878870A1 EP0878870A1 (en) 1998-11-18
EP0878870B1 true EP0878870B1 (en) 2008-05-14

Family

ID=7829732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104945A Expired - Lifetime EP0878870B1 (en) 1997-05-16 1998-03-18 High Frequency coaxial connector

Country Status (4)

Country Link
EP (1) EP0878870B1 (en)
AT (1) ATE395734T1 (en)
DE (2) DE19720678C1 (en)
NO (1) NO982191L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19805944C1 (en) * 1998-02-13 1999-09-16 Siemens Ag PCB arrangement
DE19853775C2 (en) * 1998-11-21 2003-05-08 Wuerth Elektronik Gmbh & Co Kg receptacle
DE19904574C2 (en) * 1999-02-04 2001-02-22 Tyco Electronics Logistics Ag RF coaxial angle connector part
DE20117997U1 (en) 2001-11-05 2002-02-14 Rosenberger Hochfrequenztechnik GmbH & Co, 83413 Fridolfing Spring plate for contacting a component on a circuit board and circuit arrangement with contacting spring plate
DE102004014476B4 (en) * 2004-03-24 2006-11-09 Robert Virant HF connection part for fixed mounting to a printed circuit board
DE202005020107U1 (en) * 2005-12-23 2007-02-15 Kathrein-Werke Kg On a printed circuit board electrically connected coaxial H-connector device and associated connector unit
DE202008014542U1 (en) 2008-11-03 2009-01-29 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Connectors for circuit boards
EP3136514A1 (en) * 2015-08-31 2017-03-01 Brigitta Funk Enhancement of the solderability and the mechanical strength of contact elements soldered to a circuit board

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189846A3 (en) * 1985-01-29 1988-01-13 Hewlett-Packard Company Connector for semi-rigid coaxial cable
US4718854A (en) * 1986-12-18 1988-01-12 Amp Incorporated Low profile press fit connector
JPS63281369A (en) * 1987-05-12 1988-11-17 Nec Corp Metal support for contact plug for high frequency circuit board
US4964805A (en) * 1990-01-03 1990-10-23 Amp Incorporated Microcoxial connector having bipartite outer shell
CA2096817A1 (en) * 1992-05-22 1993-11-23 Thomas Shackney Cohen Coaxial connector

Also Published As

Publication number Publication date
DE19720678C1 (en) 1998-10-08
EP0878870A1 (en) 1998-11-18
ATE395734T1 (en) 2008-05-15
NO982191D0 (en) 1998-05-13
NO982191L (en) 1998-11-17
DE59814230D1 (en) 2008-06-26

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