EP3989368A1 - Elektrischer steckverbinder, verbindungselement und leiterplattenanordnung - Google Patents

Elektrischer steckverbinder, verbindungselement und leiterplattenanordnung Download PDF

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Publication number
EP3989368A1
EP3989368A1 EP20202798.3A EP20202798A EP3989368A1 EP 3989368 A1 EP3989368 A1 EP 3989368A1 EP 20202798 A EP20202798 A EP 20202798A EP 3989368 A1 EP3989368 A1 EP 3989368A1
Authority
EP
European Patent Office
Prior art keywords
connector
electrical
printed circuit
circuit board
conductor contact
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.)
Pending
Application number
EP20202798.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Andreas Gruber
Johannes HEUBECK
Christian Dandl
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.)
Filing date
Publication date
Application filed by Rosenberger Hochfrequenztechnik GmbH and Co KG filed Critical Rosenberger Hochfrequenztechnik GmbH and Co KG
Priority to EP20202798.3A priority Critical patent/EP3989368A1/de
Priority to US17/505,898 priority patent/US11916340B2/en
Priority to CN202111222372.5A priority patent/CN114389068A/zh
Publication of EP3989368A1 publication Critical patent/EP3989368A1/de
Pending legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • 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
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • H01R13/052—Resilient pins or blades co-operating with sockets having a circular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • the invention relates to an electrical plug connector, having an outer conductor contact element with a plurality of elastic spring tabs and a dielectric support element.
  • PCBs printed circuit boards
  • Multiple circuit boards are often provided within a common electronic system in order to distribute the circuits spatially in a housing, for example, or to connect different modules of a modular system to one another.
  • an electrical connection is required between the various printed circuit boards for signal and/or energy exchange.
  • printed circuit board connectors are often used, which are electrically and mechanically connected to the respective printed circuit board, for example directly (as a "two-piece” board-to-board connection).
  • an additional connector also known as an "adapter” or “bullet”
  • the printed circuit board connectors or board-to-board connectors mentioned are often designed to compensate for a radial offset, a rotational offset, an angular offset and/or an offset in the distance between the two printed circuit boards.
  • a connector to compensate for a rotational and radial offset is, for example, in EP 2 490 304 A2 suggested.
  • the connector of EP 2 490 304 A2 has a contact element, for example an outer conductor contact element, which is formed from loop-like structures.
  • the outer conductor contact element is wound in a helical shape in order to enable sufficient contact pressure.
  • the outer conductor contact element is with the helical turns are provided with orthogonal turns to provide the ability to compensate for potential misalignment in a blind mating operation.
  • the known connectors have various problems. On the one hand, the production of a contact element with such complex windings, such as in the EP 2 490 304 A2 proposed, comparatively complex. Furthermore, the known plug connectors generally lack sufficient mechanical stability when plugged in. Finally, the connector is suitable EP 2 490 304 A2 also only to a limited extent for use in high-frequency technology and takes up a comparatively large amount of space along the longitudinal axis due to its complex winding structure along its axial extent.
  • the object of the present invention is to provide an electrical connector that is able to compensate for an offset between electrical devices, preferably with high mechanical stability and advantageous electrical properties at the same time.
  • An electrical connector is provided, in particular for producing an electrical and mechanical connection between a first electrical device (preferably a first circuit board) assigned to the connector and a second electrical device (preferably a second circuit board).
  • the connector is preferably electrically and mechanically connected to the first device and can be connected to a further connector assigned to the second device (for example the connecting element described below or a corresponding mating connector).
  • the connector according to the invention has an outer conductor contact element with a plurality of elastic spring tabs and a dielectric support element.
  • the deformability or the elasticity of the spring shackles can be selected in such a way that a sufficient radial contact force is provided to produce a mechanically stable electrical connection with a corresponding mating connector, for which the spring shackles can bend sufficiently reversibly (also for the offset compensation described below), however, without experiencing irreversible plastic deformation.
  • a plastic deformation of the spring shackles can also be provided.
  • the spring shackles are arranged with a respective rear end in a ring around the longitudinal axis of the connector and are attached directly or indirectly to an electrical device (in particular the aforementioned first electrical device, preferably a first printed circuit board) or are set up to to be attachable directly or indirectly to an electrical device.
  • the spring tabs are also supported laterally on the dielectric support element with a respective front, free end section.
  • the "end section” mentioned is preferably an axial section along the longitudinal axis of the respective spring shackle, which extends from the front end of the spring shackle over a certain axial length, for example over a length of up to 50% of the total length of the spring shackle , preferably over a length of up to 40% of the total length of the spring shackle, particularly preferably over a length of up to 30% of the total length of the spring shackle, more preferably over a length of up to 20% of the total length of the spring shackle, for example only over one Length of up to 10% of the total length of the spring tab or less, e.g. B. up to 5%, up to 4%, up to 3% or up to 2%.
  • front refers to the plug-side end of the connector intended for connection to the mating connector and the term “rear” to the the rear end facing away from the front end, for example the end of the connector for connection to the electrical device.
  • the support element can be displaced laterally relative to the electrical device or is set up to be displaced laterally relative to the electrical device.
  • the support element can be laterally displaceable relative to the rear end of the plug connector.
  • a lateral displacement is understood here as a displacement of the support element in which the central axis of the support element is displaced relative to the electrical device or to the rear end of the connector, i.e. in particular a displacement between the central axis of the support element and the longitudinal axis of the connector. Provision can be made for the support element to be tilted at least slightly during the lateral displacement. However, an exclusively parallel displacement of the support element relative to the electrical device or the rear end of the plug connector is preferably provided.
  • the support element is preferably not mechanically fixed to the electrical device and/or to the rear end of the plug connector and/or to the rear ends of the spring shackles.
  • the support member may be axially spaced from the electrical device, the rear end of the connector, and/or the rear ends of the spring tabs.
  • the support element extends exclusively along the front end section of the spring tabs.
  • a self-centering structure of a plug connector can be provided in an advantageous manner.
  • the connector according to the invention has the dielectric support element that can be displaced relative to the electrical device for supporting the front end sections of the spring tabs, the outer conductor contact element can have a high level of elasticity to compensate for an offset between the connector and the mating connector (in particular a low bending stiffness in the lateral direction), wherein the connector maintains high mechanical stability at the same time due to the supporting function of the support element and the attachment of the rear end of the spring tabs to the electrical device.
  • the dielectric support member is preferably able to "float" between the forward end portions of the spring tabs. In this way, a particularly stable mechanical guide can be provided with offset compensation at the same time. If there is a lateral offset or a radial offset between the devices to be connected, for example printed circuit boards, the spring shackles that are more heavily loaded by the offset can shift the dielectric support element and thus press the spring shackles that are less loaded and the optionally available inner conductor contact element into the central position.
  • the plug connector can be advantageously suitable for connecting any electrical devices.
  • the connector can also be used, for example, to connect electrical cables (especially if at least one of the cables is fixed to a housing component) or to connect housing parts of an electrical module, for example a filter module .
  • the connection for example, of a printed circuit board to a cable or a module can also be provided.
  • any combination of electrical devices to be connected to one another can result.
  • provision can also be made for arranging a plurality of plug connectors according to the invention in a common multiple connector.
  • the connector can be any connector type.
  • An electrical plug connector for use in high-frequency technology (HF plug connector) is particularly preferably provided.
  • the connector can be designed in particular for transmitting signals in the MHz to THz range, for example for transmitting signals from 1 MHz to 100 GHz, preferably 5 MHz to 70 GHz.
  • the connector can also be used for the transmission of electrical DC signals, for example for Power supply.
  • a superimposed signal transmission can also be provided, after which an HF signal is modulated onto a DC signal.
  • the outer conductor contact element can be designed in one piece (for example using a spring cage described below) or in multiple parts (for example using individual, separate spring shackles).
  • the outer conductor contact element is preferably mechanically fixed to the electrical device, in particular a printed circuit board.
  • the spring shackles are supported laterally with their respective front, free end section on an outer jacket of the dielectric support element.
  • the spring tabs can thus advantageously be supported on the lateral outer surface of the support element.
  • the spring tabs are supported with their respective front, free end section within the support element, for example in lateral bores, grooves and/or recesses running along the longitudinal axis of the support element.
  • the outer conductor contact element is designed as a spring cage.
  • the spring basket is preferably attached directly or indirectly to the electrical device, e.g. B. via one or more contact surfaces or soldering pads.
  • the spring tabs can start with their respective rear end from a ring-shaped peripheral base of the spring basket.
  • a mechanically particularly stable external conductor contact element can be provided by a spring cage and the connection of the rear ends of the spring shackles to the base of the spring cage.
  • the rear ends of the spring shackles are formed in one piece with a common connection area, in particular a connection surface, or merge into the common connection area.
  • the spring shackles can be connected to one another in the form of a sleeve at their rear ends or can be arranged around a common central axis.
  • the rear ends of the spring shackles are each attached directly to the electrical device individually or in groups.
  • the spring tabs can be attached to a common connection surface or to a plurality of connection surfaces (eg a contact surface or soldering surface) of the electrical device, for example a printed circuit board or a housing component.
  • the rear ends of the spring shackles are each attached individually or in groups to a further component for an indirect connection to the electrical device.
  • the spring shackles can be fastened to a common connecting surface or to several connecting surfaces of the connecting element described below, the connecting element preferably being fastened to one or both electrical devices via the fixing plate mentioned below.
  • the spring tabs can also be fastened to an insulating element, for example the insulating body mentioned below.
  • the rear ends of the spring shackles are preferably firmly bonded to the connecting surface (in particular soldered or welded).
  • the rear ends of the spring shackles can be attached to the electrical device by any force-locking, form-locking and/or material-locking connection technology, in each case indirectly via one or more other components or preferably directly.
  • the spring shackles are fastened with their respective rear end to an insulating body accommodated in the outer conductor contact element.
  • the insulating body can preferably be mechanically connected to the electrical device, in particular the printed circuit board.
  • the rear ends of the spring shackles can be mechanically connected to one another by the insulating body, in particular if the insulating body forms the common support surface.
  • the insulating body can additionally support the spring shackles at their rear ends, that is to say, for example, further improve the mechanical stability of a spring cage.
  • the insulating body can thus form a common connection area for connecting the rear ends of the spring shackles, but if necessary also only fulfill an additional supporting function.
  • the insulating body can advantageously improve the mechanical stability of the connector.
  • the insulating body can advantageously be used for the indirect connection of the spring shackles to the electrical device.
  • the insulating body can be fastened to the electrical device in a form-fitting, force-fitting and/or cohesive manner.
  • the insulating body is preferably accommodated coaxially in the outer conductor contact element.
  • the dielectric support element is also preferably accommodated coaxially in the outer conductor contact element.
  • the insulator may be spaced from the support member along the longitudinal axis of the connector.
  • the support element is preferably not mechanically connected to the insulating body, but can be displaced laterally/laterally, preferably parallel, relative to the insulating body.
  • the insulating body and/or the support element are preferably fixed in the outer conductor contact element, in particular fixed in a force-fitting and/or form-fitting manner (axially or pull-out-proof and/or radially and/or rotation-proof or twist-proof).
  • the insulator can have bar-shaped latching elements, for example latching lugs, which can be inserted into corresponding latching recesses of the outer conductor contact element in order to enable radial and/or axial and/or rotational or torsion-proof fixing of the outer conductor contact element on the insulator.
  • latching lugs for example latching lugs
  • the insulating body can optionally have attachment means for attachment to the electrical device.
  • the insulating body can be used to fix the connector to, for example, a printed circuit board, a housing component or a cable.
  • the insulating body can have a guide channel (or a plurality of guide channels) for the at least one inner conductor contact element, which will be described below.
  • the insulating body can optionally be designed in multiple parts, in particular in two parts.
  • the production of the insulating body as an injection molded part can also be provided.
  • the respective front end sections of the spring tabs are bent in the direction of the rear end.
  • the spring tabs can, for example, be bent between 90° and 180°, preferably between 120° and 180°, particularly preferably between 150° and 180°, more preferably between 170° and 180°.
  • the spring tabs can also be bent by less than 90° or by more than 180°.
  • the spring tabs are preferably bent through 180° or at least approximately through 180°.
  • the spring shackles can have precisely one or also a plurality of bending points with different bending radii. Sections running in a straight line can also be provided between several bending points.
  • All spring tabs are preferably bent over. If necessary, however, it can also be provided that only individual spring tabs are bent over. For example, a first group of spring tabs can be bent over and a second group of spring tabs can be unbent over or bent over in the opposite direction.
  • the respective front end sections are bent over (towards the outside) pointing away from the longitudinal axis of the plug connector.
  • the respective front end sections are bent over in the direction of the longitudinal axis of the connector (“inwards”), in which case the spring shackles can be folded over the support element, particularly in this case (preferably, but not necessarily).
  • Bending the front end section of the spring shackles in the direction of the rear end of the spring shackles can allow a particularly good optimization possibility for the contact pressure.
  • the contact pressure can be optimized by the geometry of the bent section, in particular by the width of the spring tabs, the thickness of the spring tabs and/or the length of the spring tabs and the spring deflection of the bent portion of the spring tabs.
  • the geometry of the non-bent section of the spring shackles can be optimized in terms of the width of the spring shackles, thickness of the spring shackles and length of the spring shackles, as well as the spring deflection of the non-bent section of the spring shackles with regard to a slight radial bend to compensate for offset, without having to compromise between contact pressure and elasticity a conflict of objectives arises for offset compensation, as is the case with the connectors of the prior art.
  • the support element has laterally arranged passages, in particular passages distributed along its outer casing, in which the respective front end sections of the spring shackles are accommodated.
  • a particularly good support and guidance of the spring shackles can be provided at their front end section by the passages.
  • the passages can be designed as bores, material recesses, grooves or preferably between spoke-like or web-like elevations on the outer casing.
  • the spoke-like or web-like elevations can optionally have recesses or undercuts in order to provide a form-fitting receptacle for the spring shackles.
  • the connector has one or more stop elements in order to specify a maximum deflection for the support element and the spring shackles.
  • the stop elements are preferably formed by the elevations protruding laterally from the support element and/or the guide bodies described below. In this way, an end stop for the lateral displacement of the Supporting element are provided within an outer conductor of a mating connector.
  • the stop elements are formed by limiting elements which are arranged on an end face of the insulating body facing the supporting element and/or which are arranged on an end face of the supporting element facing the insulating body. In this way, an end stop for the lateral displacement of the support element relative to the insulating body can be provided.
  • the support element can thus be designed to provide a radial end stop between the connector and the corresponding mating connector. This can prevent the spring shackles from being overloaded.
  • the respective front end sections of the spring shackles have recesses with which the front end sections are hooked into respective guide bodies protruding laterally from the support element.
  • the guide bodies preferably protrude as elevations from the outer jacket of the support element and can be designed, for example, in the manner of a pin, bolt or plate (in principle, any desired cross section can be provided).
  • the guide bodies can protrude through the recesses of the spring tabs. Mechanical play can optionally be provided between the guide body and recess, in particular if the guide bodies are latched in the recesses. However, the guide bodies can also be pressed or locked in the recesses without play.
  • the guide bodies can optionally have chamfers, other bevels and/or a conical taper to facilitate insertion or latching into the recesses.
  • the spring shackles form a rectilinear course, a curved course or a stepped course between the front end section and the rear end.
  • a rectilinear course of the spring shackles can enable particularly cost-effective production. Furthermore, spring shackles that run in a straight line enable better or simpler electrical adjustment.
  • the outer conductor contact element or the spring cage can be designed as a slotted tube.
  • the spring shackles form a twisted course along their longitudinal extension.
  • the twisted course can extend, for example, along the front end section, starting from the rear end of the spring tabs, or be formed between the front end section and the rear end.
  • a torsion in the longitudinal direction of the spring tabs can allow a comfortable adjustment of the contact pressure.
  • the torsional rigidity of the spring shackle can be varied depending on the torsional moment of inertia of the spring shackle and the shear modulus of the material.
  • the flexural rigidity of the spring shackle can be optimized as a function of the modulus of elasticity of the spring shackle and the area moment of inertia of the spring shackle to determine the radial bending for offset compensation.
  • the plug connector has at least one inner conductor contact element, which extends through the outer conductor contact element and through the support element (and optionally through the insulating body).
  • the inner conductor contact element is preferably guided coaxially within the outer conductor contact element.
  • any number of inner conductor contact elements can be provided, for example exactly one inner conductor contact element (preferred), two inner conductor contact elements, three inner conductor contact elements, four inner conductor contact elements, five Inner conductor contact elements, six inner conductor contact elements, seven inner conductor contact elements, eight inner conductor contact elements or even more inner conductor contact elements.
  • outer conductor of the outer conductor contact element is not to be understood to mean that an inner conductor contact element is mandatory. If necessary, the plug connector can also exclusively have a single conductor (the outer conductor contact element).
  • the inner conductor contact element is designed as a flat contact. In this way, elasticity can be provided along a first spatial direction.
  • the inner conductor contact element in particular an inner conductor contact element designed as a flat contact, can optionally form a twisted course along its longitudinal extent.
  • the inner conductor contact element is preferably twisted by 90°.
  • the inner conductor contact element can preferably enable elasticity in both lateral dimensions.
  • the torsion can result in a particularly advantageous articulated connection in particular when the torsion runs along the shortest possible axial section and/or as close as possible to the end of the inner conductor contact element facing the printed circuit board.
  • the torsion can preferably also be arranged adjacent to a bending point of an angled inner conductor contact element.
  • the spring tabs and the at least one inner conductor contact element are twisted along the same direction of rotation.
  • the twists of the inner conductor contact element and the spring tabs extend over the same axial length or approximately the same length and/or run along the longitudinal axis of the connector along the same axial section (if possible).
  • the electric field rotated by the twisted inner conductor contact element can be carried along on the twisted outer conductor contact element. This can improve the transmission properties of the connector.
  • the inner conductor contact element can in principle be designed as desired, for example as a pin contact or socket contact.
  • the inner conductor contact element can preferably be formed from two contact springs arranged opposite one another, between which an inner conductor of the mating connector can be inserted, for example a pin-shaped or flat inner conductor of the mating connector.
  • the configuration of the inner conductor contact element as a socket contact can be preferred in order to avoid unintentional damage to the inner conductor contact element, since a socket contact does not generally protrude from the connector but is protected by the outer conductor contact element of the connector.
  • the connector according to the invention is basically suitable for any application within the entire field of electrical engineering.
  • communication technology, satellite technology, radio technology and radar technology primarily mobile radio technology
  • Possible applications of the invention can relate, for example, to so-called “Remote Radio Heads” (RRH) or “Remote Radio Units” (RRU) or other active components of a mobile radio system.
  • RRH Remote Radio Heads
  • RRU Remote Radio Units
  • the invention also relates to a connecting element for producing an electrical and mechanical connection between two electrical devices, in particular between two printed circuit boards.
  • the connecting element has a first end and a second end, with a connector according to the above and following statements being formed at each of the ends in order to connect the respective end to a mating connector of the device associated with this end.
  • the connecting element can in particular be a connecting element for connecting two printed circuit boards (also known by the terms “adapter” or “bullet”).
  • the connecting element preferably has a central section between its two ends, the central section preferably being in the form of a sleeve.
  • the connecting element is preferably rigid or non-elastic in its middle section (in particular such that the middle section does not provide any possibility of offset compensation between the electrical devices due to elasticity).
  • An offset compensation option between the electrical devices is preferably provided exclusively in the area of the first end and/or the second end of the connecting element.
  • the outer conductor contact elements of the two plug connectors of the connecting element are preferably formed in one piece, for example connected to one another along the middle section.
  • the inner conductor contact elements of the two plug connectors of the connecting element are preferably also designed in one piece.
  • the optionally available insulator of the two plug connectors can also be made in one piece.
  • the connecting element preferably has plug connectors of identical plug connector types at both of its ends. In principle, however, different connector types can also be provided at the two ends of the connecting element.
  • the invention also relates to a plug-in connection, having a plug-in connector according to the statements made above and below and a mating plug-in connector that can be connected to the plug-in connector.
  • the proposed plug-in connection can advantageously compensate for an offset between electrical devices to be connected to one another.
  • the mating connector is preferably designed as a printed circuit board connector.
  • the mating connector preferably has a sleeve-shaped outer conductor.
  • the outer conductor of the mating connector is preferably bell-shaped or has a funnel for the connector.
  • the mating connector preferably has at least one inner conductor.
  • the inner conductor can be formed in any way, for example, from two opposing contact springs, between which the inner conductor contact element of the connector can be inserted.
  • the inner conductor of the mating connector can also be designed as a flat contact or pin contact.
  • the invention also relates to an electrical arrangement, in particular a printed circuit board arrangement.
  • the arrangement has a first electrical device, preferably a first printed circuit board, and a second electrical device, preferably a second printed circuit board, which is electrically and mechanically connected to the first device.
  • the plug-in connection can be suitable for connecting any electrical devices, in particular if the electrical devices are to be brought together blindly or plugged in blindly, or if the connection is subject to comparative tolerances.
  • An offset of an external forced guidance of the plug connection can advantageously be compensated. Static overdetermination can be avoided in an advantageous manner.
  • the two electrical devices in particular printed circuit boards
  • the electrical devices for their connection form a common plug-in connection according to the above and following statements, with one of the two devices having the plug-in connector and the other device having the mating connector (this variant can also be referred to as a "two-part printed circuit board plug-in connection”. ).
  • the two devices are connected to one another by means of a connecting element as described above and below, with each of the two devices having one of the mating connectors for connection to one of the plug connectors of the connecting element (this and the following variant can also be referred to as "three-part Printed circuit board connector").
  • the electrical devices each have a connector as described above and below, which are electrically and mechanically connected by a connector assembly, the connector assembly having a first end and a second end, and a mating connector at each of the two ends is arranged, which is connected to one of the connectors.
  • the mating connector preferably has an outer conductor designed as a rigid sleeve, which in a particularly preferred embodiment has a drogue in order to facilitate plugging together with the connector.
  • the connector assembly is preferably designed as a rigid, non-resilient component.
  • a board-to-board connection with compensation for a radial offset between the longitudinal axes of the printed circuit board connectors of the two printed circuit boards can be provided in an advantageous manner.
  • the connecting element or the connector assembly in a middle section between its two ends relative to the first electrical device (in particular to the first printed circuit board) and/or to the second electrical device (in particular to the second circuit board) is fixed.
  • the spring tabs can be attached indirectly to the first and/or second electrical device via the middle section of the connecting element.
  • the electrical arrangement (in particular the printed circuit board arrangement) preferably has a fixing plate which is fixed relative to the first device/printed circuit board and/or to the second device/printed circuit board and has a through hole, with the connecting element or the connector assembly being guided through the through hole.
  • the values and parameters described here are deviations or fluctuations of ⁇ 10% or less, preferably ⁇ 5% or less, more preferably ⁇ 1% or less, and very particularly preferably ⁇ 0.1% or less of the respectively named Include value or parameter, provided that these deviations are not excluded in the implementation of the invention in practice.
  • the specification of ranges by means of initial and final values also includes all those values and fractions that are enclosed by the range specified in each case, in particular the initial and final values and a respective mean value.
  • FIG 1 shows a connector 1 according to a first embodiment of the invention.
  • the connector 1 is suitable for connecting any electrical devices, for example for connecting cables, electrical modules, housing parts and in particular for connecting printed circuit boards 2, 3.
  • a printed circuit board 2, 3 is indicated by way of example in FIG mechanically connected.
  • the connector 1 has an outer conductor contact element 4 with a plurality of elastic spring tabs 5 .
  • the spring tabs 5 are arranged with a respective rear end 6 in a ring around the longitudinal axis L of the plug connector 1 .
  • the outer conductor contact element 4 is designed in one piece as a spring cage and is fastened directly to the printed circuit board 2, 3.
  • the base of the spring cage or the outer conductor contact element 4 can be placed on a corresponding contact surface 8 (cf. figure 1 )
  • the printed circuit board 2, 3 attached, for example soldered, his. on in this way, a direct attachment of the rear ends 6 of the spring tabs 5 to the printed circuit board 2, 3 can be provided.
  • the spring tabs 5 do not merge into a common base of a spring cage, as shown, but are attached individually to the printed circuit board 2, 3, preferably directly or indirectly via another component.
  • the plug connector 1 has a dielectric support element 9 .
  • the support element 9 is in figure 2 shown in a perspective individual representation.
  • the spring tabs 5 are with their respective front, free end sections 10 (see, for example, Figure 1) on an outer casing 11 (see. In particular figure 2 ) of the dielectric support member 9 is supported.
  • the support element 9 is laterally displaceable relative to the printed circuit board 2, 3, as can be seen from the arrows in FIGS Figures 1 and 2 is indicated.
  • a tilting of the support element 9 can also be provided, although a displacement that is as parallel as possible is preferred.
  • the support element 9 of the connector 1 according to figure 1 has bushings 12 distributed along its outer casing 11 (cf. figure 2 ), in which the respective front end portions 10 of the spring tabs 5 are accommodated.
  • the passages 12 are formed between spoke-like or web-like elevations 13 .
  • the spoke-like or web-like elevations 13 have recesses 14 or undercuts (cf. figure 2 ) to improve the mechanical connection with the front end portion 10 of the spring tabs 5.
  • the spring tabs 5 between the front end portion 10 and the rear end 6 on a rectilinear course In this way, a particularly simple production and good matching of the electrical properties can be made possible. It should be emphasized that the spring tabs 5 of the first exemplary embodiment can alternatively also have a curved or other course.
  • the plug connector 1 also has an inner conductor contact element 15 which extends through the outer conductor contact element 4 and the support element 9 .
  • the inner conductor contact element is 15 out coaxially within the outer conductor contact element 4 .
  • a plurality of inner conductor contact elements and a non-coaxial alignment within the outer conductor contact element 4 can also be provided.
  • the inner conductor contact element 15 is designed as a flat contact. In principle, however, the inner conductor contact element 15 can also be designed as a pin contact or socket contact, as will be described below.
  • the inner conductor contact element 15 of the connector 1 according to figure 1 is in figure 3 shown in a perspective individual representation.
  • the inner conductor contact element 15 has a contact section 16 for connection to the electrical device or the printed circuit board 2 , 3 . In figure 1 a connection of the contact section 16 to a soldering surface 17 of the printed circuit board 2, 3 is shown as an example.
  • the inner conductor contact element 15 is bent by 90° and led out laterally out of the plug connector 1 or out of the outer conductor contact element 4 .
  • the inner conductor contact element 15 can also run in a straight line and be guided out of the connector 1 or the outer conductor contact element 4 along the longitudinal axis L of the connector 1 .
  • the inner conductor contact element 15 runs in a twisted manner along its longitudinal extension.
  • a torsion of 90° is provided.
  • a defined flexibility can be provided in two spatial directions.
  • a particularly advantageous articulated connection can result in particular when the torsion, as shown in the exemplary embodiments, runs along an axial section that is as limited as possible in the region of the end of the inner conductor contact element 15 facing the printed circuit board 2, 3.
  • the torsion can in particular also be arranged adjacent to the (optional) bending point of the inner conductor contact element 15 .
  • a loop structure 18 suitable for electrical adaptation to the outer conductor contact element 4 can be provided in a middle section of the inner conductor contact element 15 .
  • the spring shackles 5 are additionally fastened with their respective rear end 6 on an insulating body 19 accommodated in the outer conductor contact element 4 .
  • the insulating body 19 of the first exemplary embodiment is shown in FIG figure 4 shown in a perspective individual representation.
  • the insulating body 19 is able to further improve the stability of the outer conductor contact element 4 and also provide guidance for the inner conductor contact element 15 .
  • the insulating body 19 can preferably have a guide channel 20 for the inner conductor contact element 15 .
  • the insulating body 19 is designed as a component that is independent of the dielectric support element 9 .
  • the respective front end sections 10 of the spring shackles 5 are bent in the direction of the rear end 6 .
  • the respective front end portions 10 of the longitudinal axis L of the connector 1 are the respective front end portions 10 of the longitudinal axis L of the connector 1 sustainable (toward "outside") bent and in the in figure 7 illustrated embodiment in the direction of the longitudinal axis L of the connector 1 (inwards) bent.
  • the spring shackles 5 are folded over the support element 9, as in FIG figure 7 implied.
  • the spring shackles 5 are preferably bent over in such a way that self-contacting or a loop occurs along the spring shackles 5 (cf. figure 7 ).
  • figure 5 is a connector 21 from the connector 1 of figure 1 and a corresponding mating connector 22 shown in a perspective sectional view.
  • the mating connector 22 is also shown in an individual representation figure 6 shown.
  • the mating connector 22 has a bell-shaped outer conductor 23 or an outer conductor with a drogue for the connector 1 .
  • the mating connector 22 also has an insulator 24 which electrically insulates the outer conductor 23 from an inner conductor 25 and which guides the inner conductor 25 coaxially within the outer conductor 23 .
  • the inner conductor 25 of the mating connector 22 is formed by two opposing contact springs, between which the inner conductor contact element 15 of the connector 1 can be inserted.
  • the mating connector 22 can also be electrically and mechanically connected to a corresponding electrical device, in particular an electrical printed circuit board 2, 3.
  • the inner conductor 25 of the mating connector 22 has, for example, a contact section 16 .
  • the spring tabs 5 of the outer conductor contact element 4 have a curved shape (similar to an S-curve), which further improves the adaptability of the outer conductor contact element 4 (alternatively, however, a straight line or some other shape can also be provided). Furthermore, the spring shackles 5 have a twisted course along their longitudinal extent in the area of the front end section 10 . The contact force of the spring shackles 5 can thus be generated from the torsional resistance and can thus be configured largely independently of the flexural rigidity.
  • Guide bodies 26 are provided on the outer casing 11 of the support element 9, in which the spring shackles 5 are each suspended (cf. in particular figure 8 in synopsis with figure 9 , which shows the connector 1 with hidden outer conductor contact element 4). A lateral displacement of the spring shackles 5 can be guided even better as a result.
  • the spring tabs 5 can have corresponding recesses 27 for the guide bodies 26 (cf. figure 10 ).
  • the guide bodies 26 can also advantageously form an end stop for the lateral displacement of the support element 9 within the outer conductor 23 of the mating connector 22 .
  • the spoke-like or web-like elevations 13 of the first exemplary embodiment can also form a corresponding end stop.
  • an insulator 19 is provided to the outer conductor contact element 4 in the region of the rear ends 6 of To support spring tabs 5 and to fix the spring tabs 5 on the insulator 19 against rotation.
  • the insulating body 19 has web-like latching elements 28 on its outer casing.
  • FIG 12 a preferred embodiment of the invention is shown.
  • the embodiment of figure 12 is basically similar to the embodiment of Figures 8 to 11 .
  • the inner conductor contact element 15 is designed like a socket and has two opposing contact springs 29 in order to contact a corresponding inner conductor 25 (for example the pin contact shown) of the mating connector 22 .
  • the inner conductor contact element 15 is protected in the outer conductor contact element 4 and does not protrude from the plug connector 1.
  • Such a structure, which is particularly (but not exclusively) suitable for a socket-like configuration of the inner conductor contact element 15, is also provided for the connecting element 30, which will be described below.
  • a socket-like inner conductor contact element 15 can also protrude from the outer conductor contact element 4 and that a pin-shaped inner conductor contact element 15 can optionally be completely accommodated in the outer conductor contact element 4 .
  • figure 13 shows a printed circuit board arrangement 31 consisting of a first printed circuit board 2 and a second printed circuit board 3 electrically and mechanically connected to the first printed circuit board 2.
  • the two printed circuit boards 2, 3 are connected to one another by means of a connecting element 30, with each of the two printed circuit boards 2, 3 having a mating connector 22 for Connection to a connector 1 of the connecting element 30 has.
  • the connecting element 30 is separately in figure 14 shown and will be described below.
  • connection between the two printed circuit boards 2, 3 can also be made directly, in which case one of the two printed circuit boards 2, 3 has the connector 1 and the other printed circuit board 3, 2 has the mating connector 22.
  • a direct connection between the two circuit boards 2, 3 - if possible in practice - is preferred.
  • the indirect connection can also be provided by the connecting element 30 shown.
  • the mating connector 22 (or possibly the connector 1) for fixing to the printed circuit board 2, 3 (or other electrical device) can also be accommodated in a passage of the printed circuit board 2, 3 or the electrical device.
  • the mating connector 22 or the connector 1 does not necessarily have to be placed on the printed circuit board 2, 3 or on the electrical device, as in figure 1 implied.
  • a connecting element 30 for connecting two printed circuit boards 2, 3 is also known by the term "bullet” or "adapter”. How particularly good in combination with figure 14
  • the connection element 30 proposed here can have a first end 32 and a second end 33, with a plug connector 1 being formed on each of the two ends 32, 33.
  • the connector 1 is designed as an example, as already in connection with figure 12 connector 1 described. In principle, however, any of the connectors 1 described above and below can be provided in order to connect the respective end 32, 33 of the connecting element 30 to a mating connector 22 of the electrical device or the printed circuit board 2, 3.
  • the connecting element 30 has a central section 34 along which the two outer conductor contact elements 4 of the plug connector 1, which are designed in one piece, are rigidly or tubularly connected to one another.
  • the respective insulating bodies 19 and inner conductor contact elements 15 of the connector 1 are also formed in one piece.
  • FIG. 15 and 16 is the circuit board assembly 31 of figure 13 shown in a perspective sectional view. while showing figure 15 a coaxial alignment in which there is no offset between the two printed circuit boards 2, 3.
  • a radial offset between the two printed circuit boards 2, 3 or between the mating connectors 22 of the respective printed circuit board 2, 3 is in figure 16 shown. It can be seen how the offset can be compensated for by the connecting element 30 according to the invention.
  • a fixing plate 35 can optionally be provided, which is fixed relative to the first circuit board 2 and/or to the second circuit board 3 (the fixation is not shown).
  • the fixing plate 35 can have a through hole 36 through which the connecting element 30 is passed through, whereby finally the connecting element 30 is fixed in its middle section 34 relative to the first printed circuit board 2 and/or to the second printed circuit board 3 .
  • An offset between the printed circuit boards 2, 3 can thus preferably be compensated for exclusively in the area of the two ends 32, 33 of the connecting element 30 by the dielectric support element 9 being displaced accordingly.
  • FIG 17 shows a perspective sectional view of a fifth exemplary embodiment of the plug connector 1 according to the invention.
  • the plug connector 1 shown essentially corresponds to the plug connector 1 of the fourth exemplary embodiment in FIG.
  • the additional stop element is designed as a ring-shaped peripheral limiting element 37 on an end face of the insulating body 19 facing the support element 9 .
  • the annular limiting element 37 provides an end stop for the lateral displacement of the support element 9 relative to the insulating body 19, whereby a maximum deflection of the spring shackles 5 (and thus their mechanical overload) can also be limited in the unplugged state or independently of the mating connector 22 .
  • the annular delimiting element 37 is arranged inside the support element 9 .
  • the delimiting element 37 can also be arranged outside of the support element 9 or can run around the support element 9 .
  • individual webs or pins can of course also be provided, which are arranged inside and/or outside of the support element 9.
  • a limiting element 37 can also be provided in all of the exemplary embodiments described above.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP20202798.3A 2020-10-20 2020-10-20 Elektrischer steckverbinder, verbindungselement und leiterplattenanordnung Pending EP3989368A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20202798.3A EP3989368A1 (de) 2020-10-20 2020-10-20 Elektrischer steckverbinder, verbindungselement und leiterplattenanordnung
US17/505,898 US11916340B2 (en) 2020-10-20 2021-10-20 Electrical plug connector, connecting element, and printed circuit board arrangement
CN202111222372.5A CN114389068A (zh) 2020-10-20 2021-10-20 电插头连接器、连接元件和印刷电路板装置

Applications Claiming Priority (1)

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EP20202798.3A EP3989368A1 (de) 2020-10-20 2020-10-20 Elektrischer steckverbinder, verbindungselement und leiterplattenanordnung

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US11916340B2 (en) 2024-02-27
CN114389068A (zh) 2022-04-22

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