EP1157448A1 - Coaxial connection for a printed circuit board - Google Patents

Coaxial connection for a printed circuit board

Info

Publication number
EP1157448A1
EP1157448A1 EP00904792A EP00904792A EP1157448A1 EP 1157448 A1 EP1157448 A1 EP 1157448A1 EP 00904792 A EP00904792 A EP 00904792A EP 00904792 A EP00904792 A EP 00904792A EP 1157448 A1 EP1157448 A1 EP 1157448A1
Authority
EP
European Patent Office
Prior art keywords
adapter
connector element
connector
ball joint
connector according
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
EP00904792A
Other languages
German (de)
French (fr)
Other versions
EP1157448B1 (en
Inventor
Christian Garbini
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.)
Huber and Suhner AG
Original Assignee
Huber and Suhner AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huber and Suhner AG filed Critical Huber and Suhner AG
Publication of EP1157448A1 publication Critical patent/EP1157448A1/en
Application granted granted Critical
Publication of EP1157448B1 publication Critical patent/EP1157448B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • H01R13/6315—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only allowing relative movement between coupling parts, e.g. floating connection
    • 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
    • H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • 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
    • 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
    • H01R24/54—Intermediate parts, e.g. adapters, splitters or elbows
    • H01R24/542—Adapters

Definitions

  • the invention relates to a printed circuit board coaxial connection with a substantially cylindrical adapter, which is electrically connected with a first end to a first connector and with a second end to a second connector, at least the first connector element being fastened to a printed circuit board.
  • the printed circuit boards are contacted with each other in terms of high frequency.
  • position and position inaccuracies of the SMD (Surface Mounted Device) components must be compensated for in the radial and axial directions so that the high-frequency properties are retained.
  • two circuit board cable sections have been used for the aforementioned electrical connection, each of which has been fastened at the ends to the circuit boards with a connector.
  • the flexibility of the coaxial cable sections ensured the compensation of the position and positional accuracy of the SMD components.
  • this connection is comparatively expensive and also has the disadvantage that the Distances between two connected circuit boards are comparatively large.
  • Printed circuit board coaxial connections which have a substantially cylindrical adapter which engages with its two ends in a connector element.
  • Such connectors allow a comparatively small distance between the two interconnected circuit boards. Due to the elasticity of the adapter and the connector elements, a certain compensation is also possible in the axial and radial directions. With such a compensation, however, a tension is exerted on the connector elements, which can lead to a breakage of the solder joints. Such a break is possible in particular if the further plates are subject to vibrations or shocks or other, unfavorable influences.
  • the invention has for its object to provide a circuit board coaxial connection of the type mentioned, which avoids the disadvantages mentioned and which is still comparatively inexpensive to manufacture and reliable.
  • the invention is achieved in a generic printed circuit board coaxial connection in that the adapter is connected at its first end by means of a fixed ball joint to the first connector element, in such a way that the adapter can be inclined to a limited extent around the center of the fixed ball joint in a substantially non-stressed manner.
  • the adapter can be tilted in a comparatively large area essentially without building up a voltage. It is essential that, due to the ball joint, the contact force remains essentially constant when the adapter is tilted. The solder joints are thus much less stressed than before and essentially no stresses are exerted on the inner conductor either.
  • connection according to the invention enables a very compact construction of printed circuit boards with a distance of, for example, five to ten Millimeters.
  • two printed circuit boards can be electrically connected to one another with ten connections, the tolerances that arise in particular during soldering being able to be absorbed essentially without force.
  • the adapter has its second end connected to the second connector element by means of a loose ball joint, then comparatively high axial tolerances can also be absorbed essentially without force, the contact force also remaining essentially constant at the second end of the adapter .
  • the fixed ball joint has joint parts which are detachably locked together.
  • the adapter can then be snapped onto the first connector element with its first end in the manner of a push button. This pre-assembly is comparatively easy to automate and safe.
  • the inner conductor of the adapter is particularly unloaded when, according to a development of the invention, the two ends of the adapter each have an electrical contact surface in the form of a spherical section.
  • the two ends of the adapter preferably engage in a sleeve-shaped part of a connector element. This ensures in a special way that the inner conductor is always unloaded and the contact force is essentially constant.
  • the fixed ball joint is formed by the insulator of the adapter and the insulator of the first connector element. This results in a particularly cheap and permanent snap connection between two joint parts. The connection of the first ball joint can easily be released several times without damage. Further advantageous features result from the dependent claims, the following description and redrawing.
  • FIG. 1 shows a section through a connection according to the invention
  • FIG. 2 shows the connection according to FIG. 1, but after an axial and ratial displacement of the two connector elements
  • FIG. 3 shows a section through a variant of the connection according to the invention
  • connection 1 shown in FIGS. 1 and 2 has two connector elements 2 and 3 and an essentially cylindrical adapter 4.
  • the connector elements 2 and 3 are connected to soldering points 8 with a printed circuit board A and B, respectively.
  • soldering points 8 with a printed circuit board A and B, respectively.
  • Different types of connection in particular using SMD connection technology, are suitable here and are known per se to the person skilled in the art.
  • the first connector element 2 forms a plug with the adapter 4, while the second connector element 3 forms a socket. In design terms, however, the first connector element 2 and the second connector element 3 are identical. However, the two ends 5 and 6 of the adapter 4 are designed differently.
  • the first end 5 forms a fixed ball joint 22 with the first connector element 2, while the second end 6 forms a loose ball joint 23 with the second connector element 3.
  • the first connector element 2 has an outer conductor 10 with an inner circumferential contact surface 10a, an inner conductor 11 with an inner substantially cylindrical contact surface 11a, and a plate-shaped insulator 12.
  • the inner conductor 11 is firmly connected to the insulator 12 and forms with it a hinge pin 19 which has a spherical hinge surface 12a.
  • This articular surface 12a is evidently formed by the insulator 12, which is formed, for example, from polytetrafluoroethylene or another suitable plastic.
  • the insulator 11 has at its first end 5 an inner spherical segment-shaped joint surface 21 which is designed to correspond to the joint surface 12a. As can be seen, the first end 5 engages around the pivot pin 19 and engages in an annular recess 25 of the insulator 12 with lateral play.
  • the outer conductor 7 of the adapter 4 is sleeve-shaped and has a circumferential, curved contact surface 7a (FIG. 2) which bears against the contact surface 10a of the outer conductor 10.
  • the contact surface 10a is essentially cylindrical in the area of contact with the contact surface 7a and, as can be seen, widens outwards in a funnel shape.
  • the inner conductor 8 is provided at both ends with axial slots 8b and likewise has spherical contact surfaces 8a at both ends.
  • the lower end of the inner conductor 8 engages in the sleeve-shaped inner conductor 11 so as to be axially displaceable, the spherical segment-shaped contact surface 8a abutting the cylindrical contact surface 11a.
  • the outer conductor 7 is also slit axially.
  • the end 6 of the adapter 4 forms a loose ball joint 23 with the connector element 3.
  • the outer conductor 7 contacts the second connector element 3 via a contact surface 7b which is also slightly curved in cross section ( Figure 2) with a contact surface 13a.
  • the inner conductor 8 is axially displaceable with the upper contact surface 8a in contact with the cylindrical inner contact surface 14a of the inner conductor 14.
  • the end 6 engages in FIG.
  • a spherical outer surface 15a of the insulator 15 is at a distance from a trough-shaped recess 6a of the insulator.
  • the adapter 4 is fastened to the first connector element 2 by inserting its end 5 into the annular recess 25 from above.
  • the adapter 4 is snapped or snapped onto the hinge pin 19. This latching connection can be released by an axial pull-out force on the adapter 4.
  • the snap-on adapter 4 forms with the first connector element 2 a plug which can be connected to the second connector element 3 by axially pushing the element 6 onto it.
  • the connection between the adapter 4 and the second connector element 3 is loose and the end 6 is axially displaceable and radially tiltable in the annular recess 26.
  • the contact of the inner conductor and outer conductor is guaranteed.
  • the first ball joint 2 enables the adapter 4 to be inclined to the vertical 24 around the center Z.
  • the loose ball joint 23 enables an inclination in all directions as well as an axial change in distance relative to the second connector element 3.
  • the connector 1 can accommodate a relatively large offset between the two printed circuit boards A and B in the radial and axial directions.
  • the offset that can be accommodated is comparatively large in relation to the distance between the two circuit boards A and B.
  • the possible axial is Compensation for example 0.6 mm and the radial compensation for example 0.4 mm.
  • FIG. 2 shows the two printed circuit boards A and B which, with reference to FIG. 1, are offset axially and radially from one another.
  • the adapter 4 is inclined with respect to the vertical 24.
  • the end 6 of the adapter also engages deeper into the annular recess 26.
  • the contacts of the inner conductor 8 to the two connector elements 2 and 3 as well as the contacts of the outer conductor 7 are ensured with essentially the same contact force. It is essential that the adapter 4 exerts essentially no tension on the two connector elements 2 and 3 and thus on the soldering points 18.
  • connection 101 shown in FIGS. 3 and 4 likewise has a plug with a first connection element 102 and an adapter 104 and a socket with a second connector element 103.
  • a fixed ball joint 122 and a loose ball joint 123 are also formed here.
  • the hinge pin is formed by the lower end 105 of the adapter 104 and the joint socket by a cup-shaped part 119 of the first connector element 102.
  • the main difference to connection 1 here is that not the insulator, but the outer conductor 107 of the adapter 104 and the outer conductor 110 of the first connector element 102 form the fixed ball joint 122.
  • the sliding surfaces of the fixed ball joint 122 also form the electrical contact of the outer conductor.
  • FIG. 4 shows the connection 101, the two printed circuit boards A and B being offset axially and radially with respect to FIG. 3.
  • essentially no force is exerted on the two connector elements 102 and 103 with essentially the same contact force.
  • connection 101 too, the two connector elements 102 and 103 are of identical design.
  • the second connector element 103 is configured differently from the first connector element 102.
  • the second connector element 103 can be designed, for example, as an angle piece which is connected to the second printed circuit board B via a further connecting part.
  • the second connector element 103 can thus be connected indirectly to the printed circuit board B. This also applies to connection 1.
  • FIG. 5 shows a connection 1 ′ which essentially corresponds to that according to FIGS. 1 and 2.
  • connection 1 ' the hinge pin 19' and the hinge surface 21 'are designed such that the adapter 4' sits on the insulator 12 'with radial and axial play.
  • the adapter 4 ' like the adapter 4', is movable and fixed to the insulator 12 '.
  • the game mentioned enables inexpensive production, since the requirements for precision are lower. Tests have shown that the connection 1 'is also functionally reliable.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Saccharide Compounds (AREA)
  • Fats And Perfumes (AREA)

Abstract

The invention relates to a coaxial connection for a printed circuit board comprising an essentially cylindrical adapter (4; 104) which, with a first end (5; 105), is electrically connected to a first connector element (2; 102) and which, with a second end (6; 106), is electrically connected to a second connector element (3; 103). At least the first connector element (2; 102) is fastened to a printed circuit board (A). The adapter (4; 104) is connected, with the first end (5; 105) thereof, to the first connector element (2; 102) by means of a ball-and-socket joint (22; 122) in such a way that the adapter (4; 104) can be tilted around the center (Z) of the fixed ball-and-socket joint (22; 122) in a limited manner and without the application of forces thereon.

Description

Leiterplatten-KoaxialVerbindung PCB coaxial connection
Die Erfindung betrifft eine Leiterplatten-KoaxialVerbindung mit einem im wesentlichen zylindrischen Adapter, der mit einem ersten Ende mit einem ersten Verbinder und mit einem zweiten Ende mit einem zweiten Verbinder elektrisch verbunden ist, wobei wenigstens das erste Verbinderelement auf einer Leiterplatte befestigt ist.The invention relates to a printed circuit board coaxial connection with a substantially cylindrical adapter, which is electrically connected with a first end to a first connector and with a second end to a second connector, at least the first connector element being fastened to a printed circuit board.
Nach dem Bestücken von Leiterplatten mit SMD-Bauteilen und dem anschliessenden Löten werden Leiterplatten hochfrequenz- mässig miteinander kontaktiert. -Hierbei müssen Lage- und Po- sitionsungenauigkeiten der SMD (Surface Mounted Device) - Bauteile, in radialer und achsialer Richtung kompensiert werden können, damit die Hochfrequenzeigenschaften beibehalten werden. Bisher wurden zum genannten elektrischen Verbinden von zwei Leiterplatten-Kabelabschnitte verwendet, die an ihren Enden jeweils mit einem Verbinder an den Leiterplatten befestigt wurden. Die Biegsamkeit der Koaxialkabelabschnitte gewährleistete den Ausgleich der Lage- und Positionsgenauig- keiten der SMD-Bauteile . Diese Verbindung ist jedoch vergleichsweise teuer und weist zudem den Nachteil auf, dass die Abstände zwischen zwei verbundenen Leiterplatten vergleichsweise gross sind.After the assembly of printed circuit boards with SMD components and the subsequent soldering, the printed circuit boards are contacted with each other in terms of high frequency. In this case, position and position inaccuracies of the SMD (Surface Mounted Device) components must be compensated for in the radial and axial directions so that the high-frequency properties are retained. Hitherto, two circuit board cable sections have been used for the aforementioned electrical connection, each of which has been fastened at the ends to the circuit boards with a connector. The flexibility of the coaxial cable sections ensured the compensation of the position and positional accuracy of the SMD components. However, this connection is comparatively expensive and also has the disadvantage that the Distances between two connected circuit boards are comparatively large.
Bekannt sind Leiterplatten-Koaxialverbindungen, die einen im wesentlichen zylindrischen Adapter aufweisen, der mit seinen beiden Enden jeweils in ein Verbinderelement eingreift. Solche Verbinder erlauben einen vergleichsweise kleinen Abstand zwischen dem beiden miteinander verbundenen Leiterplatten. Aufgrund der Elastizität des Adapters und der Verbinderele- mente ist zudem in axialer und radialer Richtung ein gewisser Ausgleich möglich. Bei einem solchen Ausgleich wird aber jeweils eine Spannung auf die Verbinderelemente ausgeübt, was zu einem Bruch der Lötstellen führen kann. Ein solcher Bruch ist insbesondere dann möglich, wenn die Weiterplatten Vibra- tionen- oder Stössen oder sonstigen, ungünstigen Einflüssen unterworfen sind.Printed circuit board coaxial connections are known which have a substantially cylindrical adapter which engages with its two ends in a connector element. Such connectors allow a comparatively small distance between the two interconnected circuit boards. Due to the elasticity of the adapter and the connector elements, a certain compensation is also possible in the axial and radial directions. With such a compensation, however, a tension is exerted on the connector elements, which can lead to a breakage of the solder joints. Such a break is possible in particular if the further plates are subject to vibrations or shocks or other, unfavorable influences.
Der Erfindung liegt die Aufgabe zugrunde, eine Leiterplatten- Koaxialverbindung der genannten Art zu schaffen, welche die genannten Nachteile vermeidet und die dennoch vergleichsweise kostengünstig herstellbar und funktionssicher ist.The invention has for its object to provide a circuit board coaxial connection of the type mentioned, which avoids the disadvantages mentioned and which is still comparatively inexpensive to manufacture and reliable.
Die Erfindung ist bei einer gattungsgemässen Leiterplatten- Koaxialverbindung dadurch gelöst, dass der Adapter an seinem ersten Ende mittels eines festen Kugelgelenks mit dem ersten Verbinderelement verbunden ist, derart, dass der Adapter im wesentlichen kraftunbelastet um das Zentrum des festen Kugelgelenkes begrenzt neigbar ist. Bei der erfindungsgemässen Verbindung kann der Adapter in einem vergleichsweise grossen Bereich im wesentlichen ohne Aufbau einer Spannung gekippt werden. Wesentlich ist, dass aufgrund des Kugelgelenkes die Kontaktkraft beim Neigen des Adapters im wesentlichen konstant bleibt. Die Lötstellen sind damit wesentlicher geringer als bisher belastet und auch auf dem Innenleiter werden im wesentlichen keine Spannungen ausgeübt. Die erfindungsgemässe Verbindung ermöglicht einen sehr kompakten Aufbau von Leiterplatten mit einem Abstand von beispielsweise fünf bis zehn Milimeter. Zwei Leiterplatten können beispielsweise mit zehn Verbindungen elektrisch miteinander verbunden sein, wobei die insbesondere beim Verlöten entstehenden Toleranzen im wesentlichen kraftlos aufgenommen werden können.The invention is achieved in a generic printed circuit board coaxial connection in that the adapter is connected at its first end by means of a fixed ball joint to the first connector element, in such a way that the adapter can be inclined to a limited extent around the center of the fixed ball joint in a substantially non-stressed manner. In the connection according to the invention, the adapter can be tilted in a comparatively large area essentially without building up a voltage. It is essential that, due to the ball joint, the contact force remains essentially constant when the adapter is tilted. The solder joints are thus much less stressed than before and essentially no stresses are exerted on the inner conductor either. The connection according to the invention enables a very compact construction of printed circuit boards with a distance of, for example, five to ten Millimeters. For example, two printed circuit boards can be electrically connected to one another with ten connections, the tolerances that arise in particular during soldering being able to be absorbed essentially without force.
Ist gemass einer Weiterbildung der Erfindung der Adapter mit seinem zweiten Ende mittels eines losen Kugelgelenks mit dem zweiten Verbinderelement verbunden, so können auch vergleichsweise hohe achsiale Toleranzen im wesentlichen kraft- los aufgenommen werden, wobei die Kontaktkraft auch am zweiten Ende des Adapters im wesentlichen konstant bleibt.If, according to a development of the invention, the adapter has its second end connected to the second connector element by means of a loose ball joint, then comparatively high axial tolerances can also be absorbed essentially without force, the contact force also remaining essentially constant at the second end of the adapter .
Das feste Kugelgelenk weist gemass einer Weiterbildung der Erfindung miteinander lösbar verrastete Gelenkteile auf . Der Adapter kann dann zur Montage mit seinem ersten Ende in der Art eines Druckknopfes auf das erste Verbinderelement aufgerastet werden. Diese Vormontage ist vergleichsweise einfach automatisierbar und sicher.According to a further development of the invention, the fixed ball joint has joint parts which are detachably locked together. The adapter can then be snapped onto the first connector element with its first end in the manner of a push button. This pre-assembly is comparatively easy to automate and safe.
Der Innenleiter des Adapters ist dann besonders kraftunbelastet, wenn gemass einer Weiterbildung der Erfindung die beiden Enden des Adapters jeweils eine elektrische Kontaktfläche in der Form eines Kugelabschnittes aufweist. Vorzugsweise greifen die beiden Enden des Adapters jeweils in einem hül- senförmigen Teil eines Verbinderelementes ein. Damit ist in besonderer Weise gewährleistet, dass der Innenleiter immer kraftunbelastet ist und die Kontaktkraft im wesentlichen konstant ist .The inner conductor of the adapter is particularly unloaded when, according to a development of the invention, the two ends of the adapter each have an electrical contact surface in the form of a spherical section. The two ends of the adapter preferably engage in a sleeve-shaped part of a connector element. This ensures in a special way that the inner conductor is always unloaded and the contact force is essentially constant.
Nach einer bevorzugten Ausführung wird das feste Kugelgelenk durch den Isolator des Adapters und den Isolator des ersten Verbinderelementes gebildet . Dies ergibt eine besonders günstige und dauerhafte Rastverbindung zwischen zwei Gelenkteilen. Die Verbindung des ersten Kugelgelenkes kann ohne Be- Schädigung ohne weiteres mehrfach gelöst werden. Weitere vorteilhafte Merkmale ergeben sich aus den abhängigen Patentansprüchen, der nachfolgenden Beschreibungs- und Wiederzeichnung .According to a preferred embodiment, the fixed ball joint is formed by the insulator of the adapter and the insulator of the first connector element. This results in a particularly cheap and permanent snap connection between two joint parts. The connection of the first ball joint can easily be released several times without damage. Further advantageous features result from the dependent claims, the following description and redrawing.
Zwei Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:Two exemplary embodiments of the invention are explained in more detail below with reference to the drawing. Show it:
Figur 1. ein Schnitt durch eine erfindungsgemässe Verbindung,FIG. 1 shows a section through a connection according to the invention,
Figur 2. die Verbindung gemass Figur 1, jedoch nach einer achsialen und ratialen Verschiebung der beiden Verbinderelemente ,FIG. 2 shows the connection according to FIG. 1, but after an axial and ratial displacement of the two connector elements,
Figur 3. ein Schnitt durch eine Variante der erfindungsgemä- ssen Verbindung,FIG. 3 shows a section through a variant of the connection according to the invention,
Figur 4. die Verbindung gemass Figur 3 jedoch nach einer ach- sialen und ratialen Verschiebung der beiden Verbinderelemente zueinander undFigure 4. the connection according to Figure 3, however, after an axial and ratial displacement of the two connector elements to each other and
Figur 5. eine teilweise geschnittene weitere Variante der Verbindung .Figure 5. a partially sectioned further variant of the connection.
Die in den Figuren 1 und 2 gezeigte Verbindung 1 weist zwei Verbinderelemente 2 und 3 sowie einen im wesentlichen zylindrischen Adapter 4 auf . Die Verbinderelemente 2 und 3 sind mit Lötstellen 8 jeweils mit einer Leiterplatte A bzw. B verbunden. Unterschiedliche Verbindungsarten, insbesondere mit- tels der SMD-Verbindungstechnik sind hier geeignet und dem Fachmann an sich bekannt .The connection 1 shown in FIGS. 1 and 2 has two connector elements 2 and 3 and an essentially cylindrical adapter 4. The connector elements 2 and 3 are connected to soldering points 8 with a printed circuit board A and B, respectively. Different types of connection, in particular using SMD connection technology, are suitable here and are known per se to the person skilled in the art.
Das erste Verbinderelement 2 bildet mit dem Adapter 4 einen Stecker, während das zweite Verbinderelement 3 eine Buchse bildet. In konstruktiver Hinsicht sind jedoch das erste Verbinderelement 2 und das zweite Verbinderelement 3 identisch ausgebildet. Die beiden Enden 5 und 6 des Adapters 4 sind jedoch unterschiedlich ausgebildet. Das erste Ende 5 bildet mit dem ersten Verbinderelement 2 ein festes Kugelgelenk 22, wäh- rend das zweite Ende 6 mit dem zweiten Verbinderelement 3 ein loses Kugelgelenk 23 bildet. Das erste Verbinderelement 2 weist einen Aussenleiter 10 mit einer inneren umlaufenden Kontaktfläche 10a, einen Innenleiter 11 mit einer inneren im wesentlichen zylindrischen Kontaktfläche 11a, sowie einem tellerförmigen Isolator 12 auf. Der Innenleiter 11 ist mit dem Isolator 12 fest verbunden und bildet mit diesem einen Gelenkzapfen 19, der eine kugelförmige Gelenkfläche 12a besitzt. Diese Gelenkfläche 12a wird ersichtlich durch den Isolator 12 gebildet, der beispielsweise aus Polytetrafluoraethylen oder einem anderen geeigneten Kunststoff gebildet ist.The first connector element 2 forms a plug with the adapter 4, while the second connector element 3 forms a socket. In design terms, however, the first connector element 2 and the second connector element 3 are identical. However, the two ends 5 and 6 of the adapter 4 are designed differently. The first end 5 forms a fixed ball joint 22 with the first connector element 2, while the second end 6 forms a loose ball joint 23 with the second connector element 3. The first connector element 2 has an outer conductor 10 with an inner circumferential contact surface 10a, an inner conductor 11 with an inner substantially cylindrical contact surface 11a, and a plate-shaped insulator 12. The inner conductor 11 is firmly connected to the insulator 12 and forms with it a hinge pin 19 which has a spherical hinge surface 12a. This articular surface 12a is evidently formed by the insulator 12, which is formed, for example, from polytetrafluoroethylene or another suitable plastic.
Der Isolator 11 weist an seinem ersten Ende 5 eine inneren kugelabschnittförmige Gelenkfläche 21 auf, die korrespondierend zur Gelenkfläche 12a ausgebildet ist. Das erste Ende 5 umgreift wie ersichtlich den Gelenkzapfen 19 und greift mit seitlichem Spiel in eine ringförmige Mulde 25 des Isolators 12 ein.The insulator 11 has at its first end 5 an inner spherical segment-shaped joint surface 21 which is designed to correspond to the joint surface 12a. As can be seen, the first end 5 engages around the pivot pin 19 and engages in an annular recess 25 of the insulator 12 with lateral play.
Der Aussenleiter 7 des Adapters 4 ist hülsenförmig ausgebil- det und weist eine umlaufende, kurvenförmige Kontaktfläche 7a (Figur 2) auf, die an der Kontaktfläche 10a des Aussenleiters 10 anliegt. Die Kontaktfläche 10a ist im Bereich des Kontaktes mit der Kontaktfläche 7a im wesentlichen zylindrisch und erweitert sich nach aussen wie ersichtlich trichterförmig.The outer conductor 7 of the adapter 4 is sleeve-shaped and has a circumferential, curved contact surface 7a (FIG. 2) which bears against the contact surface 10a of the outer conductor 10. The contact surface 10a is essentially cylindrical in the area of contact with the contact surface 7a and, as can be seen, widens outwards in a funnel shape.
Der Innenleiter 8 ist an seinen beiden Enden jeweils mit ach- sialen Schlitzen 8b versehen und weist ebenfalls an beiden Enden kugelförmige Kontaktflächen 8a auf. Das untere Ende des Innenleiters 8 greift in den hülsenförmigen Innenleiter 11 achsial verschieblich ein, wobei die kugelabschnittförmige Kontaktfläche 8a an der zylindrischen Kontaktfläche 11a anliegt. Der Aussenleiter 7 ist ebenfalls achsial geschlitzt.The inner conductor 8 is provided at both ends with axial slots 8b and likewise has spherical contact surfaces 8a at both ends. The lower end of the inner conductor 8 engages in the sleeve-shaped inner conductor 11 so as to be axially displaceable, the spherical segment-shaped contact surface 8a abutting the cylindrical contact surface 11a. The outer conductor 7 is also slit axially.
Das Ende 6 des Adapters 4 bildet mit dem Verbinderelement 3 wie erwähnt ein loses Kugelgelenk 23. Der Kontakt des Aussenleiters 7 mit dem zweiten Verbinderelement 3 erfolgt über eine im Querschnitt ebenfalls leicht gebogene Kontaktfläche 7b (Figur 2) mit einer Kontaktfläche 13a. Der Innenleiter 8 ist mit der oberen Kontaktfläche 8a achsial verschieblich in Kontakt mit der zylindrischen innenseitigen Kontaktfläche 14a des Innenleiters 14. Das Ende 6 greift in Figur 1 mit achsia- lern Spiel in eine ringförmige Mulde 26 des zweiten Verbinderelementes 3 ein. Eine kugelförmige Aussenfläche 15a des Isolators 15 befindet sich wie ersichtlich im Abstand zu einer muldenförmigen Ausnehmung 6a des Isolators.As mentioned, the end 6 of the adapter 4 forms a loose ball joint 23 with the connector element 3. The outer conductor 7 contacts the second connector element 3 via a contact surface 7b which is also slightly curved in cross section (Figure 2) with a contact surface 13a. The inner conductor 8 is axially displaceable with the upper contact surface 8a in contact with the cylindrical inner contact surface 14a of the inner conductor 14. The end 6 engages in FIG. As can be seen, a spherical outer surface 15a of the insulator 15 is at a distance from a trough-shaped recess 6a of the insulator.
Der Adapter 4 wird am ersten Verbinderelement 2 befestigt, in dem er mit seinem Ende 5 von oben in die ringförmige Ausnehmung 25 eingeschoben wird. Der Adapter 4 wird hierbei auf den Gelenkzapfen 19 aufgerastet oder aufgeschnappt. Diese Rastverbindung ist durch eine achsiale Auszugskraft am Adap- ter 4 lösbar. Der aufgerastete Adapter 4 bildet mit dem ersten Verbinderelement 2 einen Stecker, der durch achsiales Aufschieben des Elementes 6 auf das zweite Verbinderelement 3 mit diesem verbindbar ist. Die Verbindung zwischen dem Adapter 4 und dem zweiten Verbinderelement 3 ist jedoch lose und das Ende 6 ist in der ringförmigen Ausnehmung 26 achsial verschieblich und radial kippbar. Der Kontakt der Innenleiter und Aussenleiter ist hierbei jedoch gewährleistet.The adapter 4 is fastened to the first connector element 2 by inserting its end 5 into the annular recess 25 from above. The adapter 4 is snapped or snapped onto the hinge pin 19. This latching connection can be released by an axial pull-out force on the adapter 4. The snap-on adapter 4 forms with the first connector element 2 a plug which can be connected to the second connector element 3 by axially pushing the element 6 onto it. However, the connection between the adapter 4 and the second connector element 3 is loose and the end 6 is axially displaceable and radially tiltable in the annular recess 26. However, the contact of the inner conductor and outer conductor is guaranteed.
Das erste Kugelgelenk 2 ermöglicht eine Neigung des Adapters 4 zur vertikalen 24 um das Zentrum Z. Beim Neigen des Adapters 4 bleibt der Abstand des Zentrums Z zur Leiterplatte A konstant. Das lose Kugelgelenk 23 ermöglicht hingegen relativ zum zweiten Verbinderelement 3 eine Neigung in allen Richtungen als auch eine achsiale Abstandsanderung . Aufgrund dieser beiden Kugelgelenke 22 und 23 kann der Verbinder 1 einen relativ grossen Versatz zwischen den beiden Leiterplatten A und B in radialer und achsialer Richtung aufnehmen. Der Versatz, der aufgenommen werden kann ist vergleichsweise gross im Verhältnis zum Abstand zwischen den beiden Leiterplatten A und B. Bei einem Abstand von beispielsweise 7 mm zwischen den beiden Leiterplatte A und B beträgt der mögliche achsiale Ausgleich beispielsweise 0,6 mm und der radiale Ausgleich beispielsweise 0,4 mm.The first ball joint 2 enables the adapter 4 to be inclined to the vertical 24 around the center Z. When the adapter 4 is inclined, the distance between the center Z and the printed circuit board A remains constant. The loose ball joint 23, on the other hand, enables an inclination in all directions as well as an axial change in distance relative to the second connector element 3. Because of these two ball joints 22 and 23, the connector 1 can accommodate a relatively large offset between the two printed circuit boards A and B in the radial and axial directions. The offset that can be accommodated is comparatively large in relation to the distance between the two circuit boards A and B. With a distance of, for example, 7 mm between the two circuit boards A and B, the possible axial is Compensation for example 0.6 mm and the radial compensation for example 0.4 mm.
Die Figur 2 zeigt die beiden Leiterplatten A und B die bezüg- lieh der Figur 1 achsial und radial zueinander versetzt sind. Der Adapter 4 ist wie ersichtlich bezüglich der vertikalen 24 geneigt . Das Ende 6 des Adapters greift zudem tiefer in die ringförmige Ausnehmung 26 ein. Die Kontakte des Innenleiters 8 zu den beiden Verbinderelementen 2 und 3 als auch die Kon- takte des Aussenleiters 7 sind beim wesentlichen gleicher Kontaktkraft gewährleistet. Wesentlich ist, dass der Adapter 4 im wesentlichen keine Spannung auf die beiden Verbinderelemente 2 und 3 und damit auf die Lötestellen 18 ausübt.FIG. 2 shows the two printed circuit boards A and B which, with reference to FIG. 1, are offset axially and radially from one another. As can be seen, the adapter 4 is inclined with respect to the vertical 24. The end 6 of the adapter also engages deeper into the annular recess 26. The contacts of the inner conductor 8 to the two connector elements 2 and 3 as well as the contacts of the outer conductor 7 are ensured with essentially the same contact force. It is essential that the adapter 4 exerts essentially no tension on the two connector elements 2 and 3 and thus on the soldering points 18.
Die in den Figuren 3 und 4 gezeigte Verbindung 101 weist ebenfalls einen Stecker mit einem ersten Verbindungselement 102 und einem Adapter 104 sowie eine Buchse mit einem zweiten Verbinderelement 103 auf. Ebenfalls wird hier ein festes Kugelgelenk 122 sowie ein loses Kugelgelenk 123 gebildet. Der Gelenkzapfen wird hier jedoch durch das untere Ende 105 des Adapters 104 und die Gelenkpfanne durch einen becherförmigen Teil 119 der ersten Verbinderelementes 102 gebildet. Der wesentliche Unterschied zur Verbindung 1 besteht hier somit darin, dass nicht der Isolator, sondern der Aussenleiter 107 des Adapters 104 und der Aussenleiter 110 des ersten Verbinderelementes 102 das feste Kugelgelenk 122 bilden. Die Gleitflächen des festen Kugelgelenkes 122 bilden zudem den elektrischen Kontakt des Aussenleiters.The connection 101 shown in FIGS. 3 and 4 likewise has a plug with a first connection element 102 and an adapter 104 and a socket with a second connector element 103. A fixed ball joint 122 and a loose ball joint 123 are also formed here. Here, however, the hinge pin is formed by the lower end 105 of the adapter 104 and the joint socket by a cup-shaped part 119 of the first connector element 102. The main difference to connection 1 here is that not the insulator, but the outer conductor 107 of the adapter 104 and the outer conductor 110 of the first connector element 102 form the fixed ball joint 122. The sliding surfaces of the fixed ball joint 122 also form the electrical contact of the outer conductor.
Beim losen Kugelgelenk 123 wird der elektrische Kontakt des Aussenleiters durch einen zylindrischen Teil 107a des Aussenleiters 107 und einer kugelförmigen Aussenfläche 113a des Aussenleiters 113 gebildet. Der Innenleiter 108 des Adapters 104 ist ebenfalls mit kugelabschnittförmigen Kontaktflächen 108a versehen. Die Figur 4 zeigt die Verbindung 101, wobei die beiden Leiterplatten A und B bezüglich der Figur 3 achsial und radial versetzt sind. Auch hier wird bei im wesentlichen gleicher Kontaktkraft auf die beiden Verbinderelemente 102 und 103 im wesentlichen keine Kraft ausgeht.In the case of the loose ball joint 123, the electrical contact of the outer conductor is formed by a cylindrical part 107a of the outer conductor 107 and a spherical outer surface 113a of the outer conductor 113. The inner conductor 108 of the adapter 104 is likewise provided with contact surfaces 108a in the form of spherical sections. FIG. 4 shows the connection 101, the two printed circuit boards A and B being offset axially and radially with respect to FIG. 3. Here, too, essentially no force is exerted on the two connector elements 102 and 103 with essentially the same contact force.
Auch bei der Verbindung 101 sind die beiden Verbinderelemente 102 und 103 gleich ausgebildet. Denkbar ist jedoch auch eine Ausführung, bei welcher das zweite Verbinderelement 103 un- terschiedlich ausgebildet ist zum ersten Verbinderelement 102. Das zweite Verbinderelement 103 kann beispielsweise als Winkelstück ausgebildet sein, das über ein weiteres Verbin- dungsteil mit der zweiten Leiterplatte B verbunden ist. Das zweite Verbinderelement 103 kann somit mittelbar mit der Lei- terplatte B verbunden sein. Dies gilt auch für die Verbindung 1.In connection 101, too, the two connector elements 102 and 103 are of identical design. However, an embodiment is also conceivable in which the second connector element 103 is configured differently from the first connector element 102. The second connector element 103 can be designed, for example, as an angle piece which is connected to the second printed circuit board B via a further connecting part. The second connector element 103 can thus be connected indirectly to the printed circuit board B. This also applies to connection 1.
Die Figur 5 zeigt eine Verbindung 1 ' , die im wesentlichen derjenigen gemass den Figuren 1 und 2 entspricht. Bei der Verbindung 1' sind hingegen der Gelenkzapfen 19' und die Gelenkfläche 21' so ausgebildet, dass der Adapter 4' mit radialem und achsialem Spiel auf dem Isolator 12' sitzt. Der Adapter 4 ' ist wie der Adapter 4 ' beweglich und am Isolator 12 ' fixiert. Das erwähnte Spiel ermöglicht eine kostengünstige Herstellung, da die Anforderungen an die Präzision geringer sind. Versuche haben gezeigt, dass auch die Verbindung 1' funktionssicher ist. FIG. 5 shows a connection 1 ′ which essentially corresponds to that according to FIGS. 1 and 2. With connection 1 ', however, the hinge pin 19' and the hinge surface 21 'are designed such that the adapter 4' sits on the insulator 12 'with radial and axial play. The adapter 4 ', like the adapter 4', is movable and fixed to the insulator 12 '. The game mentioned enables inexpensive production, since the requirements for precision are lower. Tests have shown that the connection 1 'is also functionally reliable.

Claims

Patentansprüche claims
1. Leiterplattenkoaxialverbindung mit einem im wesentlichen zylindrischen Adapter (4; 104), der mit einem ersten Ende (5; 105) mit einem ersten Verbinderelement (2; 102) und mit einem zweiten Ende (6; 106) mit einem zweiten Verbinderelement (3; 103) elektrisch verbunden ist, wobei wenigstens das erste Verbinderelement (2; 102) auf einer Lei- terplatte (A) befestigt ist, dadurch gekennzeichnet, dass der Adapter (4; 104) an seinem ersten Ende (5; 105) mittels eines Kugelgelenks (22; 122) mit dem ersten Verbinderelement (2; 102) verbunden ist, derart, dass der Adapter (4; 104) im wesentlichen kraftunbelastet begrenzt neigbar ist.1. PCB coaxial connection with a substantially cylindrical adapter (4; 104), which has a first end (5; 105) with a first connector element (2; 102) and a second end (6; 106) with a second connector element (3 ; 103) is electrically connected, at least the first connector element (2; 102) being fastened to a printed circuit board (A), characterized in that the adapter (4; 104) is connected at its first end (5; 105) by means of a Ball joint (22; 122) is connected to the first connector element (2; 102) in such a way that the adapter (4; 104) can be tilted to a limited extent in a substantially non-stressed manner.
2. Verbinder nach Anspruch 1, dadurch gekennzeichnet, dass der Adapter (4; 104) mit seinem zweiten Ende (6; 106) mittels eines losen Kugelgelenks (23; 123) mit dem zweiten Verbinderelement (3; 103) verbunden ist, derart, dass die beiden Verbinderelemente (2; 3; 102; 103) achsial und radial im wesentlichen kraftunbelastet zueinander verschiebbar sind .2. Connector according to claim 1, characterized in that the adapter (4; 104) with its second end (6; 106) is connected to the second connector element (3; 103) by means of a loose ball joint (23; 123), such that that the two connector elements (2; 3; 102; 103) are axially and radially displaceable relative to each other essentially without force.
3. Verbinder nach Anspruch 1 oder 2, dadurch ge- kennzeichnet, dass ein festes Kugelgelenk (22; 122) miteinander lösbar verrastete Gelenkteile (5; 19; 105; 110) aufweist.3. Connector according to claim 1 or 2, character- ized in that a fixed ball joint (22; 122) releasably latched joint parts (5; 19; 105; 110).
4. Verbinder nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Innenleiter (8; 108) des Ad- apters (4; 104) an wenigstens einem seiner beiden Enden eine Kontaktfläche (8a; 108a) in der Form eines Kugelabschnittes aufweist .4. Connector according to one of claims 1 to 3, characterized in that the inner conductor (8; 108) of the adapter (4; 104) has at least one of its two ends a contact surface (8a; 108a) in the form of a spherical section .
5. Verbinder nach Anspruch 4 dadurch gekennzeich- net, dass die beiden Enden der Innenleiter (4; 104) jeweils in einen hülsenförmigen Teil eines Verbindungselementes (11; 111) eingreifen.5. Connector according to claim 4, characterized in that the two ends of the inner conductor (4; 104) each engage in a sleeve-shaped part of a connecting element (11; 111).
6. Verbinder nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Aussenleiter (7; 107) des Adapters (4; 104) an wenigstens einem seiner Enden eine Kontaktfläche (7a; 107a) in der Form eines Kugelabschnittes aufweist .6. Connector according to one of claims 1 to 5, characterized in that the outer conductor (7; 107) of the adapter (4; 104) has at least one of its ends a contact surface (7a; 107a) in the form of a spherical section.
7. Verbinder nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das feste Kugelgelenk (22) durch den Isolator (9) des Adapters (4) und den Isolator (12) des ersten Verbinderelementes (2) gebildet wird.7. Connector according to one of claims 1 to 6, characterized in that the fixed ball joint (22) by the insulator (9) of the adapter (4) and the insulator (12) of the first connector element (2) is formed.
8. Verbinder nach Anspruch 7, dadurch gekennzeichnet, dass die Kugelpfanne (21) durch den Isolator (9) des Adapters (4) gebildet wird.8. Connector according to claim 7, characterized in that the ball socket (21) is formed by the insulator (9) of the adapter (4).
9. Verbinder nach Anspruch 8, dadurch gekenn- zeichnet, dass der Isolator (12) des ersten Verbinderelementes (2) tassenförmig ausgebildet ist und einen Gelenkzapfen (19) bildet, in dem der Innenleiter (11) des ersten Verbinderelementes (2) befestigt ist.9. Connector according to claim 8, characterized in that the insulator (12) of the first connector element (2) is cup-shaped and forms a hinge pin (19) in which the inner conductor (11) of the first connector element (2) is fastened .
10. Verbinder nach Anspruch 1, dadurch gekennzeichnet, dass die Gelenkpfanne (119) des festen Kugelgelenkes (122) durch den Aussenleiter des ersten Verbinderelementes (102) gebildet wird. 10. Connector according to claim 1, characterized in that the joint socket (119) of the fixed ball joint (122) is formed by the outer conductor of the first connector element (102).
EP00904792A 1999-03-02 2000-02-29 Coaxial connection for a printed circuit board Expired - Lifetime EP1157448B1 (en)

Applications Claiming Priority (3)

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CH37699 1999-03-02
CH37699 1999-03-02
PCT/CH2000/000115 WO2000052788A1 (en) 1999-03-02 2000-02-29 Coaxial connection for a printed circuit board

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AU (1) AU2656400A (en)
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CA2365404A1 (en) 2000-09-08
ATE244943T1 (en) 2003-07-15
WO2000052788A1 (en) 2000-09-08
DE50002830D1 (en) 2003-08-14
US6497579B1 (en) 2002-12-24
AU2656400A (en) 2000-09-21
ES2204511T3 (en) 2004-05-01
CA2365404C (en) 2008-02-12
EP1157448B1 (en) 2003-07-09

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