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EP2780985B1 - Connecting element - Google Patents

Connecting element Download PDF

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Publication number
EP2780985B1
EP2780985B1 EP12784457.9A EP12784457A EP2780985B1 EP 2780985 B1 EP2780985 B1 EP 2780985B1 EP 12784457 A EP12784457 A EP 12784457A EP 2780985 B1 EP2780985 B1 EP 2780985B1
Authority
EP
European Patent Office
Prior art keywords
conductor
shell
connecting member
axial connecting
member 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.)
Active
Application number
EP12784457.9A
Other languages
German (de)
French (fr)
Other versions
EP2780985A1 (en
Inventor
Hauke SCHÜTT
Frank Tatzel
Georg SCHIELE
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.)
Rosenberger Hochfrequenztechnik GmbH and Co KG
Original Assignee
Rosenberger Hochfrequenztechnik GmbH and Co KG
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.)
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Publication date
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Publication of EP2780985A1 publication Critical patent/EP2780985A1/en
Application granted granted Critical
Publication of EP2780985B1 publication Critical patent/EP2780985B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7082—Coupling device supported only by cooperation with PCB
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/73—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
    • 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
    • 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
    • H01R12/714—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 with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
    • 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
    • H01R12/732—Printed circuits being in the same plane
    • 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
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin
    • 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
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/52—Fixed connections for 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
    • 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
    • H01R12/91—Coupling devices allowing relative movement between coupling parts, e.g. floating or self aligning
    • 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
    • H01R24/50—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
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member

Definitions

  • the invention relates to a coaxial connecting element which comprises an inner conductor, an outer conductor and an insulation element arranged between the inner conductor and the outer conductor, for the electrically conductive connection of two components, namely printed circuit boards, with which the high-frequency signals between the two boards are transmitted as lossless as possible can.
  • fasteners In such fasteners is required that they ensure a lossless as possible transmission of high-frequency signals in a defined tolerance range with respect to the parallelism and the distance between the two boards to each other.
  • Other requirements for such fasteners are cost-effective production and easy installation.
  • the axial and radial dimensions of the connecting element should be kept as small as possible.
  • Typical coaxial connectors used for this purpose are SMP, mini-SMP or FMC.
  • spring contact pins in single-conductor and / or multiple-conductor construction.
  • Such spring contact pins include a sleeve and a partially guided within the sleeve head and a coil spring which is supported between the head and the sleeve.
  • Required for the coil spring properties with respect to spring force and block length require relatively large spring lengths, which have a correspondingly detrimental effect on the axial height of the spring contact pins.
  • the use of spring contact pins in the single-conductor structure also has the disadvantage that they must be arranged in a specific pattern as signal and ground pins in order to achieve a satisfactory electrical performance. Multiple conductors, however, are prone to error and expensive due to their complicated structure.
  • contact devices 10 having a plurality of longitudinally elastic contact elements, which are used for example in a device for testing printed circuit boards.
  • tubular contact elements having spiral-shaped slots which terminate at the ends (one or both sides) and thereby form a plurality of elastic fingers which engage around a contact elevation, in particular a contact ball.
  • a contact device with a plurality of contact elements for contacting two printed circuit boards is known.
  • the contact elements each have two contact tips, which are slidable into each other, wherein a piston of a contact tip slides in an opening of the other contact tip.
  • a coil spring disposed between the contact tips becomes compressed the contact tips compressed and thus causes the contact pressure of the contact tips at the contact points of the circuit boards.
  • a Contact elements for contacting two circuit boards are known.
  • a provided with a plurality of longitudinal axial slots and thus spring tabs forming first contact part is disposed within a second contact part.
  • the free ends of the spring tabs slide on an inwardly drawn portion b, wherein the spring tabs are deformed radially inwardly.
  • the radial directed restoring force of the spring tabs is deflected into a longitudinal axial restoring force, so that contact elements of the contact parts rest spring-loaded at contact points of the printed circuit boards.
  • the device comprises a carrier plate with openings in which conductive sleeves are arranged.
  • coaxial connectors are inserted, each connected to a coaxial cable.
  • the coaxial connectors are fixed in the sleeve by snap-in connections.
  • the US 2005/0026512 A1 discloses spring contact pins which are formed as one-piece punching and bending components.
  • the present invention seeks to provide an improved connection element for electrically connecting two components in the form of boards.
  • the connecting element should, despite tolerances balancing properties by cost-effective production, a simple and thus error-prone construction and / or a simple installation distinguished.
  • the invention is based on the idea to realize the electrical connection between two components by means of a simple structure, preferably one-piece conductor and to realize a balance of positional tolerances of the two components to be connected by a deformation of this conductor due to its structural configuration.
  • a conductor which comprises a tubular jacket which has at least one opening for reducing the axial rigidity of the jacket.
  • the axial stiffness of the shell is so small that the forces occurring during the assembly of the two components cause a deformation of the shell in the axial direction required in particular due to positional tolerances of these two components.
  • a simple, inexpensive and effective way to reduce the axial stiffness of the tubular shell is to integrate into this (at least) a spiral opening.
  • a “helical course” is understood according to the invention to mean a course of the opening (with respect to the start and end point of the opening), which extends both in the axial and in the circumferential direction of the jacket.
  • a particularly preferred embodiment of such a connecting element according to the invention can provide that at least two such spirally extending openings are provided, which extend from one another starting from the two ends of the jacket. It can preferably be provided that each of these at least two spirally extending openings extends only over a maximum of half the axial length of the shell and they do not penetrate.
  • a plurality of preferably parallel and / or spirally extending openings can be provided.
  • a first group of spirally extending openings and a second group of spirally extending openings may be provided, wherein the openings of the two groups extend from one another starting from the two ends of the jacket.
  • the jacket is formed on (at least) one end with spring tongues extending obliquely with respect to the longitudinal axis of the jacket (relative to the connecting line between the starting and end points of the respective spring tongue).
  • spring tabs By means of these spring tabs, a compensation of tolerances with regard to the parallelism of the two surfaces of the components to be joined together can be effected in an advantageous manner. Also, such spring tabs allow at least within limits a certain positional balance with respect to the two components in the axial and radial directions (relative to the jacket of the conductor).
  • the jacket has at at least one end a bearing surface that is larger than the cross-sectional area of the jacket wall. Such an enlarged bearing surface simplifies the production of a reliable connection with the component (s).
  • An inexpensive way to design such an enlarged bearing surface may provide that form as (preferably 90 °) beveled end of the shell.
  • this conductor is in an electrically conductive contact with the second conductor and at least with respect to a portion of the first conductor.
  • This contact between the first and the second conductor can be provided, in particular, in that section of the first conductor in which the openings are made in its jacket.
  • the second conductor thus supports the first conductor in the transmission of electrical energy or signals and in particular high-frequency signals, wherein the inventive deformation of the first conductor with the aim of a position tolerance compensation of the two components is ensured by the at least partially axial mobility.
  • the second conductor has a closed tubular jacket in order to allow a good transmission of particular high-frequency signals.
  • the conductors are provided as outer conductor of a coaxial connecting element, thus surrounding a further conductor (inner conductor).
  • This inner conductor may preferably be formed in a known form as a spring contact pin, thus comprising a sleeve, a partially guided inside the sleeve piston and a spring element which is supported between the piston and the sleeve.
  • Such spring contact pins are characterized by a good transmission behavior for in particular high-frequency signals and also by an insensitivity to positional tolerances of the components to be joined together. Tolerances with respect to the distance between the two components to each other are compensated for by the possibility of displacement of the piston in the sleeve.
  • the spring element ensures a sufficient contact pressure of the piston to the adjacent component.
  • an insulating element is arranged between the outer conductor and the inner conductor. This can - in order to obtain a good manageable unit - preferably be firmly connected to the inner conductor and at least a portion of the outer conductor. In this case, it is also possible to connect the insulating element completely to the outer conductor, provided that it has a relatively low modulus of elasticity and thus does not or only insignificantly obstructs the axial deformation of the outer conductor provided according to the invention.
  • the connecting element shown comprises an inner conductor 1, an outer conductor 2 and a between the inner conductor 1 and the outer conductor 2 arranged insulating element 3.
  • the inner conductor 1 is in the form of a conventional spring contact pin, ie this includes a sleeve 4 and a partially guided within the sleeve movable piston with a piston rod 5 and a head 6 with a spherical contact surface.
  • a (not shown) coil spring is arranged, which is supported between the piston and the bottom of the sleeve 4.
  • the outer conductor 2 comprises a first conductor 7 with a tubular jacket, in which a plurality of spirally extending openings 8 is introduced.
  • These spiral-shaped openings 8 are subdivided into two groups, one of them starting from that in the Fig. 1 End shown above extends to just before the (axial) center of the shell.
  • the second group starts from the one in the Fig. 1 end shown below and also extends to just before the (axial) center of the shell.
  • the spiral openings 8 have a diagonal part and axially extending end portions. All sections of the spiral openings 8 of a group run parallel to each other.
  • the outer conductor 2 comprises in addition to the first conductor 7, a second conductor 10, which is also tubular, has the same length as the insulating element 3 and fixedly connected to this (eg glued).
  • the jacket of the second conductor 10 is closed and thus has no openings.
  • a fixed connection between the first conductor 7 and the second conductor 10 is in the section between the in the Fig. 1 End shown below and the beginning of the openings 8 in the jacket of the first conductor 7 is provided.
  • all components of the connecting element are firmly connected to each other, yet a relative movement of the in the Fig. 1 Part of the first conductor 7 shown above relative to the second conductor 10 is possible.
  • the connecting element with the folded lower end is firmly connected to a first board 11 (see. Fig. 2 ).
  • the second board 12 is mounted, which thereby presses with a defined contact force against the upper end of the connecting element (see. Fig. 3 ).
  • This contact pressure can vary as a result of positional tolerances of the two boards 11, 12.
  • the pressing of the second board 12 against the connecting element on the one hand causes a displacement of the piston of the inner conductor 1 against the force of the coil spring.
  • the spring preload thus produced ensures reliable contact of the head 6 of the inner conductor 1 with the corresponding contact point on the circuit board 12.
  • the pressing of the upper board 12 ensures at least a small deformation of the elastically deflectable spring tabs 9. This is already the case because the total length of the first conductor 7 of the outer conductor 2 is dimensioned so that this slightly larger than the maximum, of the tolerances approved Distance between the two boards 11, 12 is.
  • the spring tabs 9 allow a tolerance compensation with respect to the distance between the two boards from each other, their task is in particular in a compensation of tolerances with respect to the parallelism of the contact surfaces of the boards to be joined together 11, 12th
  • the inventive design of the shell of the first conductor 7 is responsible. Due to the spirally extending openings 8 in the shell, its axial rigidity is so low that it is deformed as much as necessary between the two sinkers 11, 12.
  • the specific arrangement of the spiral-shaped openings in two groups extending toward one another has the advantage that the axial deformation of the first conductor 7 merely leads to a rotation of the central region of the jacket separating the two groups of openings 8 (cf. Fig. 3 ). It can thereby be achieved that the connection points of the first conductor 7 with the two sinkers 11, 12 remain substantially free from torsional forces.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Measuring Leads Or Probes (AREA)

Description

Die Erfindung betrifft ein Koaxial-Verbindungselement, welches einen Innenleiter, einen Außenleiter sowie ein zwischen dem Innenleiter und dem Außenleiter angeordnetes Isolationselement umfasst, zum elektrisch leitenden Verbinden von zwei Bauteilen, nämlich Platinen, mit dem Hochfrequenz-Signale zwischen den zwei Platinen möglichst verlustfrei übertragen werden können.The invention relates to a coaxial connecting element which comprises an inner conductor, an outer conductor and an insulation element arranged between the inner conductor and the outer conductor, for the electrically conductive connection of two components, namely printed circuit boards, with which the high-frequency signals between the two boards are transmitted as lossless as possible can.

Bei derartigen Verbindungselementen ist erforderlich, dass diese eine möglichst verlustfreie Übertragung der Hochfrequenz-Signale auch in einem definierten Toleranzbereich bezüglich der Parallelität sowie des Abstands der beiden Platinen zueinander sicherstellen. Weitere Anforderungen an solche Verbindungselemente liegen in einer kostengünstigen Herstellung sowie einer einfachen Montage. Zudem sollen die axialen und radialen Abmessungen des Verbindungselements möglichst klein gehalten werden.In such fasteners is required that they ensure a lossless as possible transmission of high-frequency signals in a defined tolerance range with respect to the parallelism and the distance between the two boards to each other. Other requirements for such fasteners are cost-effective production and easy installation. In addition, the axial and radial dimensions of the connecting element should be kept as small as possible.

Zum Einsatz kommen derzeit hauptsächlich zwei Ausführungsformen derartiger Verbindungselemente.At present, mainly two embodiments of such fasteners are used.

Zum einen wird eine Verbindung zwischen zwei Platinen mittels zwei, mit den Platinen fest verbundenen Koaxialsteckverbindern sowie einem die beiden Koaxialsteckverbinder verbindenden Adapter, dem sogenannten "Bullet", hergestellt Dieser Adapter ermöglicht einen axialen und radialen Toleranzausgleich, sowie den Ausgleich von Parallelitätstoleranzen. Typische hierfür eingesetzte Koaxialsteckverbinder sind SMP, Mini-SMP oder FMC.On the one hand, a connection between two boards by means of two, firmly connected to the boards coaxial connectors and an adapter connecting the two coaxial connector, the so-called "Bullet", made this adapter allows axial and radial tolerance compensation, as well as the compensation of parallelism tolerances. Typical coaxial connectors used for this purpose are SMP, mini-SMP or FMC.

Alternativ werden elektrische Verbindungen zwischen zwei Platinen auch über Federkontaktstifte, sogenannte "Pogopins", in Einzelleiter- und/oder Mehrfachleiteraufbau realisiert. Derartige Federkontaktstifte umfassen eine Hülse und einen teilweise innerhalb der Hülse geführten Kopf sowie eine Schraubenfeder, die sich zwischen dem Kopf und der Hülse abstützt. Die für die Schraubenfeder geforderten Eigenschaften bezüglich Federkraft und Blocklänge erfordern relativ große Federlängen, die sich entsprechend nachteilig auf die axiale Bauhöhe der Federkontaktstifte auswirken. Die Verwendung von Federkontaktstiften im Einzelleiteraufbau weist zudem den Nachteil auf, dass diese in einem bestimmten Muster als Signal- und Groundpins angeordnet sein müssen, um eine befriedigende elektrische Leistung zu erzielen. Mehrfachleiter sind dagegen aufgrund ihres komplizierten Aufbaus fehleranfällig und teuer.Alternatively, electrical connections between two boards are also realized via spring contact pins, so-called "pogopins", in single-conductor and / or multiple-conductor construction. Such spring contact pins include a sleeve and a partially guided within the sleeve head and a coil spring which is supported between the head and the sleeve. Required for the coil spring properties with respect to spring force and block length require relatively large spring lengths, which have a correspondingly detrimental effect on the axial height of the spring contact pins. The use of spring contact pins in the single-conductor structure also has the disadvantage that they must be arranged in a specific pattern as signal and ground pins in order to achieve a satisfactory electrical performance. Multiple conductors, however, are prone to error and expensive due to their complicated structure.

Aus der US 2007/269999 A1 sind Kontaktvorrichtungen 10 mit einer Mehrzahl von in Längsrichtung elastischen Kontaktelementen bekannt, die beispielsweise in einer Vorrichtung zum Testen von Leiterplatten eingesetzt werden. Es sind rohrförmige Kontaktelemente offenbart, die spiralförmige Schlitze aufweisen, die endseitig (ein- oder beidseitig) auslaufen und dadurch mehrere elastische Finger ausbilden, die eine Kontakterhebung, insbesondere eine Kontaktkugel, umgreifen.From the US 2007/269999 A1 For example, contact devices 10 are known having a plurality of longitudinally elastic contact elements, which are used for example in a device for testing printed circuit boards. There are disclosed tubular contact elements having spiral-shaped slots which terminate at the ends (one or both sides) and thereby form a plurality of elastic fingers which engage around a contact elevation, in particular a contact ball.

Aus der US 7,491,069 B1 sind Kon taktelemente für eine Kontaktvorrichtung b e-kannt, wie sie in der US 2007/269999 A1 beschrieben sind. Die Kontaktelemente bestehen aus einer zylindrischen Hülse, in die mittig spiralförmige Schlitze eingebracht sind. Eine längsaxiale Deformation der Kontaktelemente führt zu einer Rotation zumindest eines der Enden der Kontaktelemente. Dadurch wird eine Relativbewegung zwischen den Kontaktelementen und den von diesen kontaktierten Kontaktstellen einer Leiterplatte erzielt. Die Relativbewegung führt zu einer Säuberung der Kontaktstellen.From the US Pat. No. 7,491,069 B1 are con tact elements for a contact device b e-know, as shown in the US 2007/269999 A1 are described. The contact elements consist of a cylindrical sleeve, in the middle spiral-shaped slots are introduced. A longitudinal axial deformation of the contact elements leads to a rotation of at least one of the ends of the contact elements. As a result, a relative movement between the contact elements and contacted by these contact points of a printed circuit board is achieved. The relative movement leads to a cleaning of the contact points.

aus der US 5,174,763 A ist eine Kontaktvorrichtung mit einer Mehrzahl von Kontaktelementen zum Kontaktieren von zwei Leiterplatten bekannt. Die Kontaktelemente weisen jeweils zwei Kontaktspitzen auf, die ineinander verschiebbar sind, wobei ein Kolben der einen Kontaktspitze in einer Öffnung der anderen Kontaktspitze gleitet. Eine zwischen den Kontaktspitzen angeordnete Spiralfeder wird bei einem Zusammendrücken der Kontaktspitzen komprimiert und bewirkt somit den Anpressdruck der Kontaktspitzen an den Kontaktstellen der Leiterplatten.from the US 5,174,763 A For example, a contact device with a plurality of contact elements for contacting two printed circuit boards is known. The contact elements each have two contact tips, which are slidable into each other, wherein a piston of a contact tip slides in an opening of the other contact tip. A coil spring disposed between the contact tips becomes compressed the contact tips compressed and thus causes the contact pressure of the contact tips at the contact points of the circuit boards.

Aus der US 5,192,213 A sind Kontaktelemente zur Kontaktierung von zwei Leiterplatten bekannt. Ein mit mehreren längsaxialen Schlitzen versehenes und somit Federlaschen ausbildendes erstes Kontaktteil ist innerhalb eines zweiten Kontaktteils angeordnet. Bei einem Zusammendrücken der zwei Kontaktteile gleiten die freien Enden der Federlaschen auf einem nach innen gezogenen Abschnitt b, wobei die Federlaschen radial nach innen deformiert werden. Die radiale gerichtete Rückstellkraft der Federlaschen wird in eine längsaxiale Rückstellkraft umgelenkt, so dass Kontaktelemente der Kontaktteile federbelastet an Kontaktstellen der Leiterplatten anliegen.From the US 5,192,213 A Contact elements for contacting two circuit boards are known. A provided with a plurality of longitudinal axial slots and thus spring tabs forming first contact part is disposed within a second contact part. Upon compression of the two contact parts, the free ends of the spring tabs slide on an inwardly drawn portion b, wherein the spring tabs are deformed radially inwardly. The radial directed restoring force of the spring tabs is deflected into a longitudinal axial restoring force, so that contact elements of the contact parts rest spring-loaded at contact points of the printed circuit boards.

Aus der US 2011/021041 A1 ist eine Vorrichtung zum Testen von Leiterplatten bekannt. Die Vorrichtung umfasst eine Trägerplatte mit Öffnungen, in denen leitfähige Hülsen angeordnet sind. In die Hülsen werden Koaxialsteckverbinder eingesteckt, die jeweils mit einem Koaxialkabel verbunden sind. Die Koaxialsteckverbinder werden in der Hülse durch Rastverbindungen fixiert.From the US 2011/021041 A1 a device for testing printed circuit boards is known. The device comprises a carrier plate with openings in which conductive sleeves are arranged. In the sleeves coaxial connectors are inserted, each connected to a coaxial cable. The coaxial connectors are fixed in the sleeve by snap-in connections.

Die US 2005/0026512 A1 offenbart Federkontaktstifte, die als einteilige Stanzbiegebauteile ausgebildet sind.The US 2005/0026512 A1 discloses spring contact pins which are formed as one-piece punching and bending components.

Ausgehend von diesem Stand der Technik lag der Erfindung die Aufgabe zugrunde, ein verbessertes Verbindungselement zum elektrischen Verbinden von zwei Bauteilen in Form von Platinen anzugeben. Insbesondere sollte sich das Verbindungselement trotz Toleranzen ausgleichender Eigenschaften durch eine kostengünstige Herstellung, einen einfachen und somit fehlerunanfälligen Aufbau und/oder eine einfache Montage auszeichnen.Based on this prior art, the present invention seeks to provide an improved connection element for electrically connecting two components in the form of boards. In particular, the connecting element should, despite tolerances balancing properties by cost-effective production, a simple and thus error-prone construction and / or a simple installation distinguished.

Diese Aufgabe wird durch den Gegenstand des unabhängigen Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen des erfindungsgemäßen Verbindungselements sind Gegenstand der abhängigen Ansprüche und ergeben sich aus der nachfolgenden Beschreibung der Erfindung.This object is solved by the subject matter of independent claim 1. Advantageous embodiments of the connecting element according to the invention are the subject of the dependent claims and will become apparent from the following description of the invention.

Hierzu ist es erfindungsgemäß vorgesehen, dass der Außenleiter einen ersten Leiter mit einem rohrförmigen Mantel mit zwei Enden, die für einen Kontakt mit den zwei Platinen vorgesehen sind, umfasst, der mindestens eine Öffnung zur Reduzierung der axialen Steifigkeit für einen Toleranzausgleich hinsichtlich des Abstands der beiden Platinen aufweist, wobei der Außenleiter neben dem ersten Leiter einen ebenfalls rohrförmig ausgebildeten zweiten Leiter umfasst, wobei der der erste Leiter mit dem zweiten Leiter in einem elektrisch leitenden und axial beweglichen Kontakt steht.For this purpose, it is provided according to the invention that the outer conductor comprises a first conductor having a tubular jacket with two ends, which are provided for contact with the two boards, the at least one opening for reducing the axial stiffness for a tolerance compensation with respect to the distance between the two Board comprises, wherein the outer conductor adjacent to the first conductor comprises a likewise tubular second conductor, wherein the first conductor is in an electrically conductive and axially movable contact with the second conductor.

Der Erfindung liegt der Gedanke zugrunde, die elektrische Verbindung zwischen zwei Bauteilen mittels eines möglichst einfach aufgebauten, vorzugsweise einteiligen Leiters zu realisieren und einen Ausgleich von Lagetoleranzen der beiden zu verbindenden Bauteile durch eine Deformation dieses Leiters aufgrund seiner strukturellen Ausgestaltung zu realisieren.The invention is based on the idea to realize the electrical connection between two components by means of a simple structure, preferably one-piece conductor and to realize a balance of positional tolerances of the two components to be connected by a deformation of this conductor due to its structural configuration.

Hierfür wird erfindungsgemäß ein Leiter verwendet, der einen rohrförmigen Mantel umfasst, der mindestens eine Öffnung zur Reduzierung der axialen Steifigkeit des Mantels aufweist. Dabei ist die axiale Steifigkeit des Mantels so gering, dass die bei der Montage der zwei Bauteile auftretenden Kräfte eine insbesondere infolge von Lagetoleranzen dieser beiden Bauteile erforderliche Deformation des Mantels in axialer Richtung bewirken.For this purpose, according to the invention, a conductor is used which comprises a tubular jacket which has at least one opening for reducing the axial rigidity of the jacket. The axial stiffness of the shell is so small that the forces occurring during the assembly of the two components cause a deformation of the shell in the axial direction required in particular due to positional tolerances of these two components.

Eine einfache, kostengünstige und wirkungsvolle Möglichkeit, die axiale Steifigkeit des rohrförmigen Mantels zu reduzieren liegt darin, in diesen (zumindest) eine spiralförmig verlaufende Öffnung zu integrieren.A simple, inexpensive and effective way to reduce the axial stiffness of the tubular shell is to integrate into this (at least) a spiral opening.

Unter einem "spiralförmigen Verlauf" wird erfindungsgemäß ein Verlauf der Öffnung (bezogen auf den Anfangs- und Endpunkt der Öffnung) verstanden, der sich sowohl in axialer als auch in Umfangsrichtung des Mantels erstreckt.A "helical course" is understood according to the invention to mean a course of the opening (with respect to the start and end point of the opening), which extends both in the axial and in the circumferential direction of the jacket.

Eine besonders bevorzugte Ausgestaltung eines solchen erfindungsgemäßen Verbindungselements kann vorsehen, dass zumindest zwei solcher spiralförmig verlaufenden Öffnungen vorgesehen sind, die ausgehend von den beiden Enden des Mantels aufeinander zu verlaufen. Dabei kann vorzugsweise vorgesehen sein, dass jede dieser zumindest zwei spiralförmig verlaufenden Öffnungen sich lediglich über maximal die halbe axiale Länge des Mantels erstreckt und diese sich nicht durchdringen.A particularly preferred embodiment of such a connecting element according to the invention can provide that at least two such spirally extending openings are provided, which extend from one another starting from the two ends of the jacket. It can preferably be provided that each of these at least two spirally extending openings extends only over a maximum of half the axial length of the shell and they do not penetrate.

Besonders bevorzugt kann eine Vielzahl von vorzugsweise parallel und/oder spiralförmig verlaufenden Öffnungen vorgesehen sein. Dabei können insbesondere eine erste Gruppe spiralförmig verlaufender Öffnungen und eine zweite Gruppe spiralförmig verlaufender Öffnungen vorgesehen sein, wobei die Öffnungen der beiden Gruppen ausgehend von den beiden Enden des Mantels aufeinander zu verlaufen. Eine solche Ausgestaltung weist den wesentlichen Vorteil auf, dass eine axiale Deformation des Leiters, die bei einer spiralförmig verlaufenden Öffnung zu einer Relativrotation der von der spiralförmigen Öffnung getrennten Abschnitte des Mantels führen will, auf einen Bereich des Mantels reduziert werden kann, der zwischen den beiden (Gruppen) aufeinander zu verlaufenden spiralförmigen Öffnungen angeordnet ist. Dadurch kann somit sichergestellt werden, dass die beiden Enden des Mantels, die für einen Kontakt mit den beiden Bauteilen vorgesehen sind, weitgehend frei von durch die axiale Deformation bedingten Torsionsbelastungen bleiben.Particularly preferably, a plurality of preferably parallel and / or spirally extending openings can be provided. In this case, in particular, a first group of spirally extending openings and a second group of spirally extending openings may be provided, wherein the openings of the two groups extend from one another starting from the two ends of the jacket. Such an embodiment has the significant advantage that an axial deformation of the conductor, which wants to result in a helically extending opening to a relative rotation of the separated portions of the spiral from the opening of the shell, can be reduced to a portion of the shell, between the two (Groups) successive spiraling openings is arranged. This can thus be ensured that the two ends of the jacket, which are provided for contact with the two components, remain largely free from caused by the axial deformation torsional stresses.

In einer weiterhin bevorzugten Ausführungsform des erfindungsgemäßen Verbindungselements ist vorgesehen, dass der Mantel an (zumindest) einem Ende mit schräg bezüglich der Längsachse des Mantels verlaufenden Federlaschen (bezogen auf die Verbindungslinie zwischen Anfangs- und Endpunkt der jeweiligen Federlasche) ausgebildet ist. Über diese Federlaschen kann in vorteilhafter Weise ein Ausgleich von Toleranzen bezüglich der Parallelität der zwei miteinander zu verbindenden Flächen der Bauteile erfolgen. Auch ermöglichen solche Federlaschen zumindest in Grenzen einen gewissen Lageausgleich bezüglich der beiden Bauteile in axialer und radialer Richtung (bezogen auf den Mantel des Leiters).In a further preferred embodiment of the connecting element according to the invention it is provided that the jacket is formed on (at least) one end with spring tongues extending obliquely with respect to the longitudinal axis of the jacket (relative to the connecting line between the starting and end points of the respective spring tongue). By means of these spring tabs, a compensation of tolerances with regard to the parallelism of the two surfaces of the components to be joined together can be effected in an advantageous manner. Also, such spring tabs allow at least within limits a certain positional balance with respect to the two components in the axial and radial directions (relative to the jacket of the conductor).

In einer weiterhin bevorzugten Ausführungsform weist der Mantel an zumindest einem Ende eine Auflagefläche auf, die größer als die Querschnittsfläche der Mantelwand ist. Eine solche vergrößerte Auflagefläche vereinfacht die Herstellung einer betriebssicheren Verbindung mit dem oder den Bauteilen.In a further preferred embodiment, the jacket has at at least one end a bearing surface that is larger than the cross-sectional area of the jacket wall. Such an enlarged bearing surface simplifies the production of a reliable connection with the component (s).

Eine kostengünstige Möglichkeit zur Ausgestaltung einer solchen vergrößerten Auflagefläche kann vorsehen, diese als (vorzugsweise um 90°) abgekantetes Ende des Mantels auszubilden.An inexpensive way to design such an enlarged bearing surface may provide that form as (preferably 90 °) beveled end of the shell.

Um ein besonders gutes Übertragungsverhalten von insbesondere Hochfrequenz-Signalen über den durch eine oder eine Vielzahl von Öffnungen gekennzeichneten Leiter sicherzustellen, ist erfindungsgemäß vorgesehen, dass dieser Leiter mit dem zweiten Leiter in einem elektrisch leitenden und zumindest bezüglich eines Abschnitts des ersten Leiters beweglichen Kontakt steht. Dieser Kontakt zwischen dem ersten und dem zweiten Leiter kann insbesondere in demjenigen Abschnitt des ersten Leiters vorgesehen sein, in dem die Öffnungen in dessen Mantel eingebracht sind. Der zweite Leiter unterstützt somit den ersten Leiter bei der Übertragung von elektrischer Energie bzw. Signalen und insbesondere Hochfrequenz-Signalen, wobei durch die zumindest teilweise axiale Beweglichkeit weiterhin die erfindungsgemäße Deformation des ersten Leiters mit dem Ziel eines Lagetoleranzausgleichs der beiden Bauteile gewährleistet ist.In order to ensure a particularly good transmission behavior of, in particular, high-frequency signals via the conductors marked by one or a plurality of openings, it is provided according to the invention that this conductor is in an electrically conductive contact with the second conductor and at least with respect to a portion of the first conductor. This contact between the first and the second conductor can be provided, in particular, in that section of the first conductor in which the openings are made in its jacket. The second conductor thus supports the first conductor in the transmission of electrical energy or signals and in particular high-frequency signals, wherein the inventive deformation of the first conductor with the aim of a position tolerance compensation of the two components is ensured by the at least partially axial mobility.

Vorzugsweise kann dabei vorgesehen sein, dass der zweite Leiter einen geschlossenen rohrförmigen Mantel aufweist, um eine gute Übertragung von insbesondere Hochfrequenz-Signalen zu ermöglichen.Preferably, it can be provided that the second conductor has a closed tubular jacket in order to allow a good transmission of particular high-frequency signals.

Weiterhin ist vorgesehen, dass die Leiter als Außenleiter eines Koaxial-Verbindungselements vorgesehen sind, die somit einen weiteren Leiter (Innenleiter) umgeben. Dieser Innenleiter kann vorzugsweise in bekannter Form als Federkontaktstift ausgebildet sein, somit eine Hülse, einen teilweise innerhalb der Hülse geführten Kolben sowie ein Federelement, das sich zwischen dem Kolben und der Hülse abstützt, umfassen. Derartige Federkontaktstifte zeichnen sich durch ein gutes Übertragungsverhalten für insbesondere Hochfrequenz-Signale und ebenfalls durch eine Unempfindlichkeit gegenüber Lagetoleranzen der miteinander zu verbindenden Bauteile aus. Toleranzen bezüglich des Abstandes der beiden Bauteile zueinander werden nämlich durch die Möglichkeit einer Verschiebung des Kolbens in der Hülse ausgeglichen. Das Federelement sorgt dabei für eine hinreichende Anpresskraft des Kolbens an das angrenzende Bauteil.Furthermore, it is provided that the conductors are provided as outer conductor of a coaxial connecting element, thus surrounding a further conductor (inner conductor). This inner conductor may preferably be formed in a known form as a spring contact pin, thus comprising a sleeve, a partially guided inside the sleeve piston and a spring element which is supported between the piston and the sleeve. Such spring contact pins are characterized by a good transmission behavior for in particular high-frequency signals and also by an insensitivity to positional tolerances of the components to be joined together. Tolerances with respect to the distance between the two components to each other are compensated for by the possibility of displacement of the piston in the sleeve. The spring element ensures a sufficient contact pressure of the piston to the adjacent component.

Ferner ist zwischen dem Außenleiter und dem Innenleiter ein Isolierelement angeordnet. Dieses kann - um eine gut handhabbare Einheit zu erhalten - vorzugsweise mit dem Innenleiter und zumindest einem Abschnitt des Außenleiters fest verbunden sein. Dabei besteht auch die Möglichkeit, das Isolierelement vollständig mit dem Außenleiter fest zu verbinden, sofern dieses einen relativ geringen Elastizitätsmodul aufweist und somit die erfindungsgemäß vorgesehene axiale Deformation des Außenleiters nicht oder nur unwesentlich behindert.Furthermore, an insulating element is arranged between the outer conductor and the inner conductor. This can - in order to obtain a good manageable unit - preferably be firmly connected to the inner conductor and at least a portion of the outer conductor. In this case, it is also possible to connect the insulating element completely to the outer conductor, provided that it has a relatively low modulus of elasticity and thus does not or only insignificantly obstructs the axial deformation of the outer conductor provided according to the invention.

Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. In den Zeichnungen zeigt:

Fig. 1:
ein erfindungsgemäßes Verbindungselement in einer teilweise geschnittenen Seitenansicht; und
Fig. 2 und 3:
das Verbindungselement gemäß Fig. 1 in Kombination mit zwei elektrisch miteinander zu verbindenden Platinen.
The invention will be explained in more detail with reference to an embodiment shown in the drawings. In the drawings shows:
Fig. 1:
an inventive connecting element in a partially sectioned side view; and
2 and 3:
the connecting element according to Fig. 1 in combination with two boards to be connected electrically.

Das in den Figuren 1 bis 3 dargestellte Verbindungselement umfasst einen Innenleiter 1, einen Außenleiter 2 sowie ein zwischen dem Innenleiter 1 und dem Außenleiter 2 angeordnetes Isolationselement 3. Der Innenleiter 1 ist in Form eines herkömmlichen Federkontaktstifts ausgebildet, d.h. dieser umfasst eine Hülse 4 sowie einen teilweise innerhalb der Hülse beweglich geführten Kolben mit einer Kolbenstange 5 sowie einem Kopf 6 mit sphärischer Kontaktfläche. Innerhalb der Hülse 4 ist eine (nicht dargestellte) Schraubenfeder angeordnet, die sich zwischen dem Kolben und dem Boden der Hülse 4 abstützt.That in the FIGS. 1 to 3 The connecting element shown comprises an inner conductor 1, an outer conductor 2 and a between the inner conductor 1 and the outer conductor 2 arranged insulating element 3. The inner conductor 1 is in the form of a conventional spring contact pin, ie this includes a sleeve 4 and a partially guided within the sleeve movable piston with a piston rod 5 and a head 6 with a spherical contact surface. Within the sleeve 4, a (not shown) coil spring is arranged, which is supported between the piston and the bottom of the sleeve 4.

Der Außenleiter 2 umfasst einen ersten Leiter 7 mit einem rohrförmigen Mantel, in den eine Vielzahl von spiralförmig verlaufenden Öffnungen 8 eingebracht ist. Diese spiralförmigen Öffnungen 8 sind in zwei Gruppen unterteilt, von denen sich eine ausgehend von dem in der Fig. 1 oben dargestellten Ende bis kurz vor die (axiale) Mitte des Mantels erstreckt. Die zweite Gruppe startet ausgehend von dem in der Fig. 1 unten dargestellten Ende und erstreckt sich ebenfalls bis kurz vor die (axiale) Mitte des Mantels. Die spiralförmigen Öffnungen 8 weisen einen diagonal verlaufenden Teil sowie axial verlaufende Endabschnitte auf. Sämtliche Abschnitte der spiralförmigen Öffnungen 8 einer Gruppe verlaufen parallel zueinander.The outer conductor 2 comprises a first conductor 7 with a tubular jacket, in which a plurality of spirally extending openings 8 is introduced. These spiral-shaped openings 8 are subdivided into two groups, one of them starting from that in the Fig. 1 End shown above extends to just before the (axial) center of the shell. The second group starts from the one in the Fig. 1 end shown below and also extends to just before the (axial) center of the shell. The spiral openings 8 have a diagonal part and axially extending end portions. All sections of the spiral openings 8 of a group run parallel to each other.

Das in der Fig. 1 unten dargestellte Ende des Mantels ist um 90° abgekantet, so dass eine Auflagefläche ausgebildet wird, die größer als die Querschnittsfläche der Mantelwand ist. Das in der Fig. 1 oben dargestellte Ende des Mantels wird von einer Vielzahl von Federlaschen 9 begrenzt, die radial nach außen zeigend, (um 90°) gekrümmt verlaufend ausgebildet sind. Die freien Endabschnitte der Federlaschen 9 bilden eine Auflageebene aus.That in the Fig. 1 shown below end of the jacket is bent by 90 °, so that a bearing surface is formed, which is greater than the cross-sectional area of the jacket wall. That in the Fig. 1 shown above end of the shell is bounded by a plurality of spring tabs 9, which are pointing radially outwards, (curved by 90 °) are formed to extend. The free end portions of the spring tabs 9 form a support plane.

Der Außenleiter 2 umfasst neben dem ersten Leiter 7 einen zweiten Leiter 10, der ebenfalls rohrförmig ausgebildet ist, die gleiche Länge wie das Isolationselement 3 aufweist und mit diesem fest verbunden (z.B. verklebt) ist. Der Mantel des zweiten Leiters 10 ist geschlossen und weist somit keine Öffnungen auf. Eine feste Verbindung zwischen dem ersten Leiter 7 sowie dem zweiten Leiter 10 ist in dem Abschnitt zwischen dem in der Fig. 1 unten dargestellten Ende und dem Beginn der Öffnungen 8 in dem Mantel des ersten Leiters 7 vorgesehen. Dadurch sind alle Bauteile des Verbindungselements fest miteinander verbunden, wobei dennoch eine Relativbewegung des in der Fig. 1 oben dargestellten Teils des ersten Leiters 7 relativ zu dem zweiten Leiter 10 möglich ist.The outer conductor 2 comprises in addition to the first conductor 7, a second conductor 10, which is also tubular, has the same length as the insulating element 3 and fixedly connected to this (eg glued). The jacket of the second conductor 10 is closed and thus has no openings. A fixed connection between the first conductor 7 and the second conductor 10 is in the section between the in the Fig. 1 End shown below and the beginning of the openings 8 in the jacket of the first conductor 7 is provided. As a result, all components of the connecting element are firmly connected to each other, yet a relative movement of the in the Fig. 1 Part of the first conductor 7 shown above relative to the second conductor 10 is possible.

Um zwei Platinen zur Übertragung von Hochfrequenz-Signalen mittels des erfindungsgemäßen Verbindungselements zu verbinden, wird zunächst das Verbindungselement mit dem abgekanteten unteren Ende fest mit einer ersten Platine 11 verbunden (vgl. Fig. 2). Daraufhin wird die zweite Platine 12 montiert, die dadurch mit einer definierten Anpresskraft gegen das obere Ende des Verbindungselements drückt (vgl. Fig. 3). Diese Anpresskraft kann infolge von Lagetoleranzen der beiden Platinen 11, 12 variieren. Das Andrücken der zweiten Platine 12 gegen das Verbindungselement bewirkt zum einen ein Verschieben des Kolbens des Innenleiters 1 gegen die Kraft der Schraubenfeder. Die so erzeugte Federvorspannung sorgt für einen sicheren Kontakt des Kopfs 6 des Innenleiters 1 mit der entsprechenden Kontaktstelle auf der Platine 12.In order to connect two boards for the transmission of high-frequency signals by means of the connecting element according to the invention, first the connecting element with the folded lower end is firmly connected to a first board 11 (see. Fig. 2 ). Then, the second board 12 is mounted, which thereby presses with a defined contact force against the upper end of the connecting element (see. Fig. 3 ). This contact pressure can vary as a result of positional tolerances of the two boards 11, 12. The pressing of the second board 12 against the connecting element on the one hand causes a displacement of the piston of the inner conductor 1 against the force of the coil spring. The spring preload thus produced ensures reliable contact of the head 6 of the inner conductor 1 with the corresponding contact point on the circuit board 12.

Weiterhin sorgt das Andrücken der oberen Platine 12 für eine zumindest geringe Deformation der elastisch auslenkbaren Federlaschen 9. Dies ergibt sich bereits dadurch, da die Gesamtlänge des ersten Leiters 7 des Außenleiters 2 so bemessen ist, dass diese geringfügig größer als der maximale, von den Toleranzen zugelassene Abstand zwischen den beiden Platinen 11, 12 ist. Obwohl die Federlaschen 9 auch einen Toleranzausgleich hinsichtlich des Abstands der beiden Platinen voneinander zulassen, liegt deren Aufgabe insbesondere in einem Ausgleich von Toleranzen hinsichtlich der Parallelität der Kontaktflächen der miteinander zu verbindenden Platinen 11, 12.Furthermore, the pressing of the upper board 12 ensures at least a small deformation of the elastically deflectable spring tabs 9. This is already the case because the total length of the first conductor 7 of the outer conductor 2 is dimensioned so that this slightly larger than the maximum, of the tolerances approved Distance between the two boards 11, 12 is. Although the spring tabs 9 allow a tolerance compensation with respect to the distance between the two boards from each other, their task is in particular in a compensation of tolerances with respect to the parallelism of the contact surfaces of the boards to be joined together 11, 12th

Für einen Toleranzausgleich hinsichtlich des Abstands der beiden Platinen 11, 12 voneinander ist insbesondere die erfindungsgemäße Ausgestaltung des Mantels des ersten Leiters 7 verantwortlich. Durch die spiralförmig verlaufenden Öffnungen 8 in dem Mantel ist dessen axiale Steifigkeit so gering, dass dieser zwischen den beiden Platinen 11, 12 so weit wie erforderlich deformiert wird. Dabei weist die konkrete Anordnung der spiralförmigen Öffnungen in zwei aufeinander zu verlaufenden Gruppen den Vorteil auf, dass die axiale Deformation des ersten Leiters 7 lediglich zu einer Rotation des die beiden Gruppen der Öffnungen 8 voneinander trennenden Mittelbereichs des Mantels führt (vgl. Fig. 3). Dadurch kann erreicht werden, dass die Verbindungsstellen des ersten Leiter 7 mit den beiden Platinen 11, 12 im Wesentlichen frei von Torsionskräften bleiben.For a tolerance compensation with respect to the distance between the two boards 11, 12 from each other in particular the inventive design of the shell of the first conductor 7 is responsible. Due to the spirally extending openings 8 in the shell, its axial rigidity is so low that it is deformed as much as necessary between the two sinkers 11, 12. In this case, the specific arrangement of the spiral-shaped openings in two groups extending toward one another has the advantage that the axial deformation of the first conductor 7 merely leads to a rotation of the central region of the jacket separating the two groups of openings 8 (cf. Fig. 3 ). It can thereby be achieved that the connection points of the first conductor 7 with the two sinkers 11, 12 remain substantially free from torsional forces.

Claims (9)

  1. Co-axial connecting member which comprises a centre conductor (1), an outer conductor (2) and an insulating member (3) arranged between the centre conductor (1) and the outer conductor (2), for the electrically conductive connection of two components, namely circuit boards, for transmitting radiofrequency signals between the two circuit boards, characterised in that the outer conductor (2) comprises a first conductor (7) with a tubular shell with two ends provided for contacting the two circuit boards and at least one opening (8) to reduce axial stiffness for balancing the tolerance with regard to the distance of the two circuit boards, the outer conductor (2) comprising, as well as the first conductor (7), a second conductor (10) which is likewise of a tubular form, the first conductor (7) being in electrically conductive contact with the second conductor (10), which electrically conductive contact is also axially mobile in relation to a portion of the first conductor, the second conductor being solidly connected to the first conductor over a portion.
  2. Co-axial connecting member according to claim 1, characterised in that the opening (8) follows a helical path.
  3. Co-axial connecting member according to 2, characterised by at least two openings (8) following helical paths which follow paths towards one another starting from the two ends of the shell.
  4. Co-axial connecting member according to one of the preceding claims, characterised in that the shell is formed to have, at at least one end, resilient tabs (9) which follow an oblique path relative to the longitudinal axis of the shell.
  5. Co-axial connecting member according to one of the preceding claims, characterised in that the shell forms, at at least one end, a supporting surface which is larger than the cross-sectional area of the wall of the shell.
  6. Co-axial connecting member according to claim 5, characterised in that the supporting surface takes the form of an end of the shell which is folded round.
  7. Co-axial connecting member according to one of the preceding claims, characterised in that the second conductor (10) has a solid tubular shell.
  8. Co-axial connecting member according to one of the preceding claims, characterised in that the centre conductor (1) takes the form of a spring-loaded contact pin.
  9. Co-axial connecting member according to one of the preceding claims, characterised in that the insulating member (3) is solidly connected to the centre conductor (1) and to a portion of the outer conductor (2).
EP12784457.9A 2011-11-18 2012-10-26 Connecting element Active EP2780985B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011108052U DE202011108052U1 (en) 2011-11-18 2011-11-18 connecting element
PCT/EP2012/004493 WO2013072011A1 (en) 2011-11-18 2012-10-26 Connecting element

Publications (2)

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EP2780985A1 EP2780985A1 (en) 2014-09-24
EP2780985B1 true EP2780985B1 (en) 2016-12-14

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EP12784457.9A Active EP2780985B1 (en) 2011-11-18 2012-10-26 Connecting element

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Country Link
US (1) US9300063B2 (en)
EP (1) EP2780985B1 (en)
JP (1) JP5905594B2 (en)
KR (1) KR101636311B1 (en)
CN (1) CN104137346B (en)
CA (1) CA2853710C (en)
DE (1) DE202011108052U1 (en)
TW (1) TWM451685U (en)
WO (1) WO2013072011A1 (en)

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CN110710059A (en) * 2017-06-01 2020-01-17 Ims连接器系统有限公司 Electrical plug connector with tolerance compensation
WO2020099375A1 (en) 2018-11-12 2020-05-22 Huber+Suhner Ag Printed circuit board connector
EP3989368A1 (en) * 2020-10-20 2022-04-27 Rosenberger Hochfrequenztechnik GmbH & Co. KG Electrical connector, connector element and circuit board assembly

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DE202013002575U1 (en) * 2013-03-15 2013-04-17 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Connectors
JP6439555B2 (en) * 2015-04-06 2018-12-19 富士通株式会社 Coaxial connector
CN105356106A (en) * 2015-11-03 2016-02-24 吕永锋 Fuzz button interboard radio frequency connector
TWI649923B (en) * 2016-06-17 2019-02-01 日商阿爾普士電氣股份有限公司 Crimp type joint and manufacturing method thereof
CN107819262A (en) * 2016-09-13 2018-03-20 泰科电子(上海)有限公司 Connector
CN107819215B (en) * 2016-09-14 2024-04-09 泰科电子(上海)有限公司 Connector
CN108346876A (en) * 2017-01-24 2018-07-31 泰科电子(上海)有限公司 Connector
USD905642S1 (en) * 2017-09-13 2020-12-22 Red.Com, Llc Electrical connector
USD924140S1 (en) * 2017-09-13 2021-07-06 Red.Com, Llc Electrical connector
DE102018100557A1 (en) 2017-12-21 2019-06-27 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Circuit board assembly, connecting element and method for assembling at least one connecting element
DE102018113278B3 (en) 2018-06-05 2019-09-12 Ims Connector Systems Gmbh Electrical connector for printed circuit boards
US10396510B1 (en) 2018-06-29 2019-08-27 Huber + Suhner Ag Coaxial connector with compensator
WO2020099374A1 (en) 2018-11-12 2020-05-22 Huber+Suhner Ag Board to board connector assembly for hf signal transmission
KR102013690B1 (en) * 2018-11-23 2019-08-23 주식회사 기가레인 Board-mating connector integrated with housing of electric instrument and Manufacturing method thereof
CN113228422B (en) * 2018-11-30 2024-06-21 康宁光电通信Rf有限责任公司 Compressible electrical contact with bifurcated cutting section
USD936610S1 (en) 2019-11-30 2021-11-23 Corning Optical Communications Rf Llc Compressible electrical contact
USD936611S1 (en) 2019-11-30 2021-11-23 Corning Optical Communications Rf Llc Compressible electrical contact
WO2021108080A1 (en) * 2019-11-30 2021-06-03 Corning Optical Communications Rf Llc Connector assemblies
CN110854564B (en) * 2019-12-18 2022-06-24 东莞市康硕电子有限公司 Elastic sheet for electric conduction and coaxial connector using same
CN111224255B (en) * 2020-01-09 2021-09-17 深圳三星通信技术研究有限公司 Conductor connecting piece and radio frequency connector with same
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CN110710059A (en) * 2017-06-01 2020-01-17 Ims连接器系统有限公司 Electrical plug connector with tolerance compensation
CN110710059B (en) * 2017-06-01 2022-01-11 Ims连接器系统有限公司 Electrical plug connector with tolerance compensation
WO2020099375A1 (en) 2018-11-12 2020-05-22 Huber+Suhner Ag Printed circuit board connector
EP3989368A1 (en) * 2020-10-20 2022-04-27 Rosenberger Hochfrequenztechnik GmbH & Co. KG Electrical connector, connector element and circuit board assembly

Also Published As

Publication number Publication date
EP2780985A1 (en) 2014-09-24
CA2853710C (en) 2016-11-29
US9300063B2 (en) 2016-03-29
JP2015502005A (en) 2015-01-19
US20140329421A1 (en) 2014-11-06
JP5905594B2 (en) 2016-04-20
KR20140091023A (en) 2014-07-18
TWM451685U (en) 2013-04-21
DE202011108052U1 (en) 2011-12-06
CN104137346B (en) 2017-02-15
CN104137346A (en) 2014-11-05
WO2013072011A1 (en) 2013-05-23
KR101636311B1 (en) 2016-07-05
CA2853710A1 (en) 2013-05-23

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