EP3593412B1 - Innenleiter-element und verfahren zum herstellen eines systems - Google Patents

Innenleiter-element und verfahren zum herstellen eines systems Download PDF

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Publication number
EP3593412B1
EP3593412B1 EP17800508.8A EP17800508A EP3593412B1 EP 3593412 B1 EP3593412 B1 EP 3593412B1 EP 17800508 A EP17800508 A EP 17800508A EP 3593412 B1 EP3593412 B1 EP 3593412B1
Authority
EP
European Patent Office
Prior art keywords
conductor element
inner conductor
electronic subassembly
bore
electronic
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
EP17800508.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3593412A1 (de
Inventor
Rudolf WEIDENSPOINTNER
Werner Wild
Franz SCHMIDHAMMER
Erich Schwangler
Johannes HEUBECK
Michael Wollitzer
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
Publication of EP3593412A1 publication Critical patent/EP3593412A1/de
Application granted granted Critical
Publication of EP3593412B1 publication Critical patent/EP3593412B1/de
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
    • H01R12/50—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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • 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 present invention relates to an inner conductor element for a coaxial connector for the electrical and mechanical connection between two electronic assemblies.
  • High-frequency signals are to be exchanged between individual electronic assemblies for high-frequency applications.
  • the electronic assembly can be a printed circuit board equipped with high-frequency components, a single high-frequency component such as a high-frequency filter, or a substrate with an integrated RF circuit.
  • the transmission of the individual RF signals between the individual electronic assemblies takes place via coaxial connectors, so-called board-to-board connectors (German: assembly-to-assembly connector).
  • the EP 0 584 902 A1 discloses high frequency connectors between multiple circuit boards.
  • the individual circuit boards are each connected on the ground side via a metal housing arranged between them.
  • a dielectric sleeve and an inner conductor contact element guided therein are inserted into individual bores in the metal housing in order to implement a high-frequency connection.
  • such a board-to-board connector has a first coaxial connector connected to the first electronic assembly, a second coaxial connector connected to the second electronic assembly and a first coaxial connector and the coaxial adapter part movably connected to the second coaxial connector.
  • the signal is transmitted between the two electronic assemblies via an inner conductor element that is electrically and mechanically connected to the two electronic assemblies and an outer conductor element that is arranged coaxially with it is mechanically and electrically connected to the two electronic assemblies.
  • a secure mechanical connection between the inner conductor element and the first and second electronic assemblies is typically made in each case by a press fit between the inner conductor element and a hole provided for this purpose in the first or second electronic assembly.
  • the inner conductor element and the outer conductor element are first connected to the first electronic assembly and then to the second electronic assembly.
  • the present invention is based on the object of specifying a system of two electronic assemblies with at least one coaxial connector electrically and mechanically connected to the two electronic assemblies, in which the inner conductor element belonging to the respective coaxial connector is inserted in the last assembly step can be.
  • this object is achieved by an inner conductor element with the features of claim 1, by a system of a first electronic assembly and a second electronic assembly with the features of claim 8 and by a method for producing a system from a first electronic assembly and a second electronic assembly with the features of claim 14 solved.
  • the knowledge / idea on which the present invention is based is to compare the inner diameter of the bore in that electronic assembly through which the inner conductor element is first inserted, which is hereinafter referred to as the second electronic assembly, compared to the inner diameter of the bore in that assembly, in which the inner conductor element is inserted last, which is referred to below as the first electronic assembly, to be carried out enlarged.
  • the outer diameter of the contact area of the inner conductor element, which is connected to the first electronic assembly and is referred to below as the first contact area is compared to the outer diameter of the contact area of the inner conductor element, which is connected to the second electronic assembly and is referred to below as second contact area designated is executed downsized.
  • the first contact area of the inner conductor element is connected directly to the first electronic assembly and the second contact area of the inner conductor element is connected directly to the second electronic assembly.
  • This direct connection between the inner conductor element and the first and second electronic assembly implies that no additional components are required for the electrical and mechanical connection between the inner conductor element and the first or second electronic assembly and thus advantageously an inexpensive and wear-minimized technical Solution is realized.
  • the direct connection between the first and second contact area of the inner conductor element and the first or second electronic assembly is in particular an interference fit in each case.
  • a connection implemented as a press fit ensures, on the one hand, a secure mechanical fixation of the inner conductor element to the first and second electronic assembly.
  • the press fit enables contact to be made over the entire first and second contact area of the inner conductor element, ie along the entire axial extent and the entire circumference of the first and second contact area, and the entire opposite inner wall of the bore of the first and second electronic assembly, which means an optimal electrical contact between the inner conductor element and the first and second electronic assembly is realized.
  • the press fit between the first and second contact area of the inner conductor element and the first or second electronic assembly is realized by means of a radially directed elasticity of the first and second contact area.
  • This radially directed elasticity of the first and second contact area can be implemented, for example, via at least one axially extending slot-shaped bore, preferably a single axially extending slot-shaped bore, in combination with an ellipsoidal external geometry.
  • this radially directed elasticity in the first and second contact area can also be realized via a hollow cylindrical and slotted first and second contact area, which thus each has spring tabs distributed around the circumference.
  • the press fit between the first and second contact area of the inner conductor element and the first or second electronic assembly is realized by means of a knurled surface of the first and second contact area.
  • a knurled surface leads to a significantly improved mechanical fixation of the inner conductor element to the first and second electronic assembly.
  • the first contact area is adjoined by an area which runs conically in the axial direction.
  • This region which has a point in particular, is advantageously used to center the inner conductor element in the hole belonging to the first electronic assembly.
  • the fitter who inserts the respective inner conductor element into the bores of the first and second electronic assembly, has no view of the bore associated with the first electronic assembly after the inner conductor element has been passed through the bore associated with the second electronic assembly. In this way, misjudging the inner conductor element with the outer conductor element and / or with the surface of the first electronic assembly located within the bore of the outer conductor element and thus undesired damage to the relevant components is avoided.
  • an insulator element which, in the respective coaxial connector, is coaxial with the outer conductor element and with the inner conductor element to be inserted in a bore in the outer conductor element is arranged.
  • the bore diameter is reduced from the larger bore diameter of the outer conductor element to the smaller bore diameter of the insulator element. In this way, the possibility of tilting the inner conductor element and consequent damage to the relevant components are advantageously additionally reduced.
  • transition between the end face of the insulator element, which is directed towards the second electronic assembly, and the bore of the insulator element preferably has a bevel, which enables easier centering of the inner conductor element and thus easier insertion of the inner conductor element in allows the bore of the isolator element advantageous.
  • connection area which extends between the first contact area and the second contact area of the inner conductor element.
  • spring tabs distributed over the circumference of the connection area and directed radially outward are attached to the surface of the connection area, which extends between the first contact area and the second contact area of the inner conductor element. These are preferably arranged immediately adjacent to the first contact area in the connection area. In this way, in the inserted end state of the inner conductor element, these spring tabs come to lie in the immediate transition area between the first electronic assembly and the outer conductor element. This is an area in which the spring tabs have the least possible negative influence on the high-frequency signal transmission behavior of the coaxial board-to-board connector.
  • spring tabs are particularly preferably made of plastic, i.e. made of a dielectric material, in order to make the area between the electrically conductive inner conductor element and the electrically conductive outer conductor element only dielectric and thus insulating. In this way, the high-frequency signal transmission behavior of the coaxial connector is worsened as little as possible by the fastening of the spring tabs in the connection area of the inner conductor element.
  • the inner conductor element is manufactured as a stamped and bent component.
  • a bore for receiving a joining tool is advantageously provided on the end face of the second contact area of the inner conductor element.
  • Another preferred measure for centering and thus for optimized guidance of the inner conductor element during the joining process is a funnel-shaped component in the case of the absence of an insulator part element, ie an air-filled space between the inner conductor element and the outer conductor element
  • the funnel-shaped component is fastened between an inner wall of the bore belonging to the outer conductor element and a surface of the first electronic assembly facing the bore of the outer conductor element.
  • This funnel-shaped element enables in particular an easy and secure insertion of the Inner conductor element into the hole belonging to the first electronic assembly when the fitter's view of the hole belonging to the first electronic assembly is blocked due to the inner conductor element already inserted into the hole of the second electronic assembly.
  • the system 1 according to the invention is composed of a first electronic assembly and a second electronic assembly using FIG Fig. 1 explained in detail:
  • the system 1 according to the invention has a first electronic assembly 2.
  • An electronic assembly, in particular the first electronic assembly 2 can be a printed circuit board that is equipped with electronic components, in particular with electronic high-frequency components.
  • the electronic assembly can also be a substrate with integrated electronic circuits, in particular with integrated high-frequency circuits, or an electronic component, in particular an electronic high-frequency component such as a high-frequency filter.
  • This first electronic assembly 2 is, as in FIG Fig. 1 is indicated, attached to a housing 3 or to a carrier 3.
  • the geometric arrangement of the housing or of the carrier 3 relative to the first electronic assembly 2 can be derived from the in Fig. 1 shown arrangement differ.
  • an outer conductor element 4 is attached for each coaxial connector.
  • the outer conductor element 4 is preferably a rotationally symmetrical component, in particular a cylindrical component, with an associated and axial component extending bore 5.
  • the outer conductor element 4 can also have a different cross-sectional profile on the outside. With regard to a good high-frequency transmission characteristic of the individual coaxial plug connector, the outer conductor element 4 is connected over its entire end face directly to the first electronic assembly 3 without the inclusion of air.
  • a second electronic assembly 6 is also connected directly to the at least one outer conductor element 4 of at least one coaxial connector without the inclusion of air.
  • Each outer conductor element 4 of the respective coaxial connector is made of a suitable electrically conductive material.
  • the direct contact between the outer conductor elements 4 of the individual coaxial connectors and the first and second electronic assemblies 2 and 6 creates a secure electrical connection between the respective outer conductor element 4 and an associated electrical contact surface on the first and second electronic assembly 2 and 6 guaranteed.
  • a secure mechanical connection between the first electronic assembly 2 and the second electronic assembly 2 via the outer conductor element 4 of the at least one coaxial plug connector located between them is preferably implemented by screwing by means of several screws 7 1 and 7 2 .
  • suitable connection techniques such as a soldered connection, are also possible.
  • a bore 8 is provided in the first electronic assembly 2 and a bore 9 is provided in the second electronic assembly 6, the inner diameter of which is typically smaller than the inner diameter of the individual outer conductor element 4 Corresponding bore 5 is carried out.
  • the inside diameter of the bore 8 belonging to the first electronic assembly 2 is designed to be smaller than the inside diameter of the bore 9 belonging to the second electronic assembly 6.
  • an inner conductor element 10 belonging to the respective outer conductor element 4 is arranged coaxially in each coaxial connector between the first and second electronic assemblies 2 and 6.
  • Each of these inner conductor elements 10 has a first contact area 11, a second contact area 12 and a connection area 13 located between the first contact area 11 and the second contact area 12.
  • the first contact area 11 of the inner conductor element 10 is inserted into the bore 8 belonging to the first electronic assembly 2 and is directly connected electrically and mechanically to the first electronic assembly 2.
  • the second contact area 12 of the inner conductor element 10 in the finally assembled state is inserted into the bore 9 belonging to the second electronic assembly 6 and is directly connected electrically and mechanically to the second electronic assembly 6.
  • the connection area 13 of the individual inner conductor element 13 is located in the area the bore 5 belonging to the respective outer conductor element 4.
  • An insulator element arranged coaxially in a bore 5 of the outer conductor element 4 for the outer conductor element 4 and the inner conductor element 10 is in the case of the in Fig. 1
  • the illustrated variant of a system 1 according to the invention is not provided, so that the air located in the space between the outer conductor element 4 and the inner conductor element 10 serves as an insulator.
  • the individual inner conductor element 10 can be made as a solid, cylindrical or pin-shaped component produced using machining technology or, as will be explained further below, as a hollow cylindrical punched and bent component made of a suitable electrically conductive material.
  • the first contact area 11 of the individual inner conductor element 10 is part of the first electronic assembly 2 Bore 8 and the second contact area 12 of the individual inner conductor element 10 are each inserted into the bore 9 belonging to the second electronic assembly 6 by means of a press fit.
  • each of these two interference fits is in Fig. 1
  • the illustrated first embodiment of a press fit is realized in each case by an elastic first and second contact area 11 and 12.
  • the individual elastic contact area 11 and 12 of the inner conductor element 10 each has at least one axially extending slot-shaped bore, preferably precisely one axially extending slot-shaped bore.
  • the elastic contact area 11 and 12 have an ellipsoidal outer geometry due to the at least one axially extending slot-shaped bore.
  • the outer diameter of the two elastic contact areas 11 and 12 of the inner conductor element 10 in the non-joined state is larger than the inner diameter of the bore 8 and 9 belonging to the first and second electronic assemblies 2 and 6, respectively.
  • the elastic first and second contact areas 11 and 12 of the inner conductor element 10 can, as further below for an inner conductor element 10 implemented as a stamped and bent part, according to FIG Fig. 5 is executed, can also be implemented by means of circumferentially distributed spring tabs.
  • the elastic first and second contact areas 11 and 12 of the inner conductor element 10 are each made hollow-cylindrical and slotted.
  • the inner conductor element 10 has in connection with the first contact area 11 has a region 14 which runs conically in the axial direction.
  • This region 14 of the inner conductor element 10, which runs conically in the axial direction, can preferably also run in the shape of a point or have a point.
  • the carrier or the housing 3 has in the area of the individual bores 8 of the first electronic assembly 2 each have a recess 15 in which the conical area 14 of the inner conductor element 10 in the final assembled state of the inner conductor element 10 without contact with the carrier or is mounted to the housing 3.
  • the surface of the first and second contact areas 11 and 12 of the inner conductor element 10 is knurled.
  • the outer diameter of the knurled first and second contact areas 11 and 12, ie the greatest distance between two opposing elevations of the knurled first and second contact areas 11 and 12, is greater than the inner diameter of the inner conductor element 10 with regard to a press fit when the inner conductor element 10 is not inserted associated bores 8 and 9 of the first and second electronic assembly 2 and 6, respectively.
  • the knurled first and second contact areas 11 and 12 of the inner conductor element 10 are solid, in contrast to the elastic first and second contact areas 11 and 12. It is thus possible, starting from the end face of the second contact area 12 of the inner conductor element 10, to provide a bore 16 with a specific polygonal cross-sectional profile in the second contact area 12.
  • This hole 16 can, as in Fig. 3 is indicated to accommodate a joining tool 17 with an identical polygonal cross-sectional profile. With this joining tool 17, the joining process of the respective inner conductor element 10 into the bores 8 and 9 respectively belonging to the first and second electronic assembly 2 and 6 and into the bore 5 belonging to the respective outer conductor element 4 is facilitated.
  • spring tabs 18 which are directed radially outward and are distributed over the circumference of the connecting area 13 of the inner conductor element 10 can be seen, which are in a directly adjacent to the first contact area 11 Section of the connection area 13 of the inner conductor element 10 are arranged.
  • These spring tabs 18 are preferably connected in one or more parts to a sleeve 19 which is fastened to the connection area 13 in a shoulder in this section of the connection area 13.
  • Spring tabs 18 and sleeve 19 are preferably made of a plastic. Instead of a sleeve 19, other fastening techniques for the individual spring tabs 18 are also possible.
  • the individual spring tabs 18 can be inserted into associated slots in the mentioned section of the connecting area 13 of the inner conductor element 10 by means of a press fit.
  • a funnel-shaped component 24 emerges, which is arranged in the transition area between the outer conductor element 4 and the surface of the first electronic assembly 2 adjoining it.
  • This funnel-shaped component 24 is fastened in the corresponding surface areas of the outer conductor element 4 and / or the first electronic assembly 2 with a suitable connection technique, for example by means of a press fit or gluing.
  • the funnel-shaped component 24 is preferably made from a plastic. In the case of a non-integrated insulator element, the funnel-shaped component 24 serves for better centering or better guidance of the inner conductor element 10 when it is inserted into the bore 8 belonging to the first electronic assembly 2.
  • an improved centering and an associated better guidance of the inner conductor element 10 during the joining process is achieved by inserting an insulator element 20 belonging to the respective coaxial connector.
  • This insulator element 20 is arranged in the respective coaxial plug connector coaxially to the associated inner conductor element 10 and to the associated outer conductor element 4 in the bore 5 belonging to the outer conductor element 4.
  • the integration of the insulator element 20 in the respective coaxial connector reduces the remaining bore diameter from the larger inside diameter of the bore 5 belonging to the outer conductor element 4 to the smaller inside diameter of the bore 21 belonging to the insulator element 20 Bore 21 is typically slightly larger than the outer diameter of the connection area 13 of the inner conductor element 10.
  • the end face of the insulator element 20 directed towards the second electronic assembly 6 and the inner wall of the insulator element 20 is located in the transition between the end face of the insulator element 20 Bore 21 a chamfer 22 is provided.
  • the insulator element 20 has, as in FIG Fig. 4 is indicated, a chamfer 22 on each of the two end-face transitions into the bore 21.
  • the inner conductor element 10 in the previous Figures 1 to 4 at least in the connection area 13 is made solid as a machining component Fig. 5
  • the inner conductor element 10 is a punched and bent component.
  • the surface geometry of the inner conductor element 10 is first punched from a suitable metal sheet metal part.
  • the punched metal part is then turned and additionally suitably bent in the two contact areas 11 and 12.
  • the rotated or bent metal part is latched to one another at the two seams in the connection area 13 of the inner conductor element 10 via one or more lugs or lugs 23 provided at the seams.
  • a mechanically stable inner conductor element 10 with good electrical high-frequency transmission properties is realized using punching and bending technology.

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  • Coupling Device And Connection With Printed Circuit (AREA)
EP17800508.8A 2017-03-10 2017-11-16 Innenleiter-element und verfahren zum herstellen eines systems Active EP3593412B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017002307.7A DE102017002307A1 (de) 2017-03-10 2017-03-10 Innenleiter-element
PCT/EP2017/079366 WO2018162098A1 (de) 2017-03-10 2017-11-16 Innenleiter-element

Publications (2)

Publication Number Publication Date
EP3593412A1 EP3593412A1 (de) 2020-01-15
EP3593412B1 true EP3593412B1 (de) 2021-03-10

Family

ID=60382210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17800508.8A Active EP3593412B1 (de) 2017-03-10 2017-11-16 Innenleiter-element und verfahren zum herstellen eines systems

Country Status (5)

Country Link
US (1) US10847907B2 (zh)
EP (1) EP3593412B1 (zh)
CN (1) CN110383585B (zh)
DE (1) DE102017002307A1 (zh)
WO (1) WO2018162098A1 (zh)

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DE102018100557A1 (de) 2017-12-21 2019-06-27 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Leiterplattenanordnung, Verbindungselement und Verfahren zur Montage wenigstens eines Verbindungselements
WO2020099375A1 (en) 2018-11-12 2020-05-22 Huber+Suhner Ag Printed circuit board connector
WO2020099374A1 (en) * 2018-11-12 2020-05-22 Huber+Suhner Ag Board to board connector assembly for hf signal transmission
EP4202450B1 (en) * 2021-12-23 2024-03-06 Spinner GmbH Broad band coaxial load
DE102022205764A1 (de) 2022-06-07 2023-12-07 Borgwarner Inc. Abstandselement für eine leiterplattenanordnung

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Also Published As

Publication number Publication date
EP3593412A1 (de) 2020-01-15
DE102017002307A1 (de) 2018-09-13
US10847907B2 (en) 2020-11-24
WO2018162098A1 (de) 2018-09-13
CN110383585A (zh) 2019-10-25
CN110383585B (zh) 2021-02-23
US20200243991A1 (en) 2020-07-30

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