EP3029782B1 - High frequency signalling - Google Patents

High frequency signalling Download PDF

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Publication number
EP3029782B1
EP3029782B1 EP14196411.4A EP14196411A EP3029782B1 EP 3029782 B1 EP3029782 B1 EP 3029782B1 EP 14196411 A EP14196411 A EP 14196411A EP 3029782 B1 EP3029782 B1 EP 3029782B1
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EP
European Patent Office
Prior art keywords
conductor
high frequency
signal transmission
frequency signal
cylinder tube
Prior art date
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Active
Application number
EP14196411.4A
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German (de)
French (fr)
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EP3029782A1 (en
Inventor
Roland Baur
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Vega Grieshaber KG
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Vega Grieshaber KG
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Publication date
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Priority to HUE14196411A priority Critical patent/HUE031678T2/en
Priority to EP14196411.4A priority patent/EP3029782B1/en
Priority to US14/880,315 priority patent/US9853338B2/en
Priority to CN201510824956.8A priority patent/CN105680218B/en
Publication of EP3029782A1 publication Critical patent/EP3029782A1/en
Application granted granted Critical
Publication of EP3029782B1 publication Critical patent/EP3029782B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/04—Fixed joints
    • H01P1/045—Coaxial joints
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
    • 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
    • H01R24/42—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 comprising impedance matching means or electrical components, e.g. filters or switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/202—Coaxial filters
    • 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
    • H01R13/46—Bases; Cases
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes

Definitions

  • the present invention relates to a high frequency signal feedthrough.
  • Corresponding explosion-proof high-frequency signal feedthroughs can be used, for example, in devices of measurement technology, for example field devices with sensors for measuring fill levels, limit levels and pressures.
  • Corresponding high-frequency signals can be, for example, microwave or radar signals or signals from the field of mobile radio. In the present application, high-frequency signals are understood as those starting at a frequency of 0.3 GHz.
  • a signal implementation in the sense of the present application is intended to designate a connection device for the connection of two conductors.
  • a conductor may be an electrical conductor such as a cable, a coaxial line, a waveguide, a stripline, or other device capable of carrying electrical signals.
  • a coaxial cable should be understood to mean both cables and plugs or sockets or any other coaxial cable construction.
  • Field instruments of measurement technology often have to be arranged in harsh environmental conditions. In particular, it is often necessary to arrange them in containers with explosive materials. In such environments, it is necessary to use explosion-proof housing and thus also explosion-proof signal feedthroughs, which prevent the explosion caused by the electronics of the field device, which are arranged in a housing, for example due to a spark. In such applications, a separation between an area in which is the explosion-endangered product and, for example, a region in which the measuring electronics is arranged to maintain. This can be achieved, for example, by means of explosion-proof signal feedthroughs. A seal between the areas is ensured for example by sealed conductor bushings, such as glass bushings or ceramic bushings.
  • the EP 161 486 A2 discloses a separator for connecting two coaxial cables terminated with coaxial connectors.
  • a floating housing feedthrough is in the DE 20 2006 006 359 U1 described.
  • Further prior art is in the documents DE 29 06 825 and DE 42 06 433 A1 described, each of which discloses capacitive separating elements.
  • the DE 10 2013 005 340 A1 describes an electrical connection with capacitive coupling.
  • An explosion-proof high-frequency signal feedthrough by means of which the ends of an input-side coaxial line and an output-side coaxial line to be connected to one another are each coupled to one another consisting of an inner conductor and an outer conductor surrounding the inner conductor, has a housing in which a flameproof signal feed-through for the inner conductor is arranged , It is characterized in that centrally arranged in the housing a high frequency suitable conductor structure and is coupled to the inner conductor, wherein between an input side and an output side at least one element for electrical isolation is arranged, wherein the housing has a structure for galvanically isolated coupling of the outer conductor ,
  • the inner conductor is coupled to an arranged in the housing and provided on a first side with a high frequency suitable first conductor structure board with at least one, arranged on the board, separating element for galvanic signal separation.
  • a second side of the board opposite the first side has a second conductor structure to which the outer conductor is coupled.
  • a further improvement in the high-frequency properties can be achieved if the outer conductor is additionally or alternatively coupled to a third conductor structure arranged on the first side and surrounding the first conductor structure on the outside.
  • the first conductor structure is designed as a stripline
  • a metallization can be provided on the side of the board carrying the stripline in the longitudinal direction and insulated therefrom, which is connected to the outer conductor, so that interfering signals in this regard are also avoided.
  • This can be done in particular such that the second conductor structure and the third conductor structure are electrically conductively connected to each other, which in particular can be solved via vias. It is ensured in this way a potential equalization between the bottom and the top of the board.
  • the housing is designed such that it surrounds the board at least in sections in the direction of a longitudinal axis, wherein the housing has at least one conductive inner layer and a conductive outer layer which is galvanically separated from the inner layer and at least overlap in such a way that they are capacitive are coupled, wherein an input-side outer conductor with the inner layer and an output-side outer conductor is connected to the outer layer.
  • the housing can be achieved in a space-saving manner, the arranged inside the housing board simultaneously shielding galvanically isolated coupling of the outer conductor.
  • a shielding of the arranged inside the housing board against interference signals outside can be particularly easily achieved when the inner layer and / or the outer layer are cylindrical and separated by insulation.
  • a thickness of the insulation arranged between the inner layer and the outer layer it is also possible in a simple manner to set a dielectric strength of the galvanic separation in the region of the outer conductor.
  • the capacitance formed and thus the electrical transfer property of the resulting "capacitor" can be influenced.
  • the insulation may be formed as a second cylinder tube, which is preferably at least partially closed on the side of the feedthrough, in which the first cylinder tube is mounted.
  • the outer layer is formed as a third cylinder tube, which preferably completely overlaps the first cylinder tube in the direction of the longitudinal axis, a good capacitive coupling between the first cylinder tube and the third cylinder tube can be achieved, at the same time providing a compact and extremely robust construction.
  • the third cylinder tube may have an external thread and corresponding sealing devices for connection to meter housings and / or containers.
  • a further simplification of the structure can be achieved if the circuit board is mounted in the first cylinder tube.
  • a bearing can be realized for example by inserting the board in two preferably radially opposite arranged in the first cylinder tube grooves.
  • the first cylinder tube can be formed from two half-shells, between which the board sits. By an interference fit so the two half-shells and the board can be jointly introduced into the second cylinder tube and held sufficiently secure.
  • the circuit board can be pressed into the first cylinder tube, that is to say that it is held firmly in radial direction by elastic deformation of the first cylinder tube.
  • the second conductor structure and / or the third conductor structure with the inner layer via a solder or spring contacts electrically connected may be electrically conductively connected to the inner layer via a soldering or spring contacts.
  • FIG. 1 shows a longitudinal section through an embodiment of an explosion-proof high-frequency signal passage 1, which is formed substantially as a coaxial arrangement of a first cylinder tube 23, a second cylinder tube 24 and a third cylinder tube 25 and a pressure-protected signal feedthrough 13.
  • a circuit board 14 is mounted, which is connectable to an input-side coaxial line 3.
  • a socket is shown as the input side coaxial line 3, which can contact an inner conductor 7 and an outer conductor 9 of a coaxial cable with a corresponding connector.
  • the inner conductor 7 of the socket is electrically conductively connected to a first high-frequency-capable conductor structure 15, in the present case a strip line, the strip line 15 being arranged centrally on the circuit board 14 in the longitudinal direction.
  • the stripline 15 is interrupted in the present embodiment by three components, such as dividers 21, for galvanic signal separation and is transferred to the socket opposite the end of the board 14 again in a coaxial conductor structure, which is guided by the pressure-tight signal feedthrough 13 and an output side coaxial line 5 is coupled.
  • the output side coaxial line 5 is formed in the present embodiment as a second socket.
  • the circuit board 14 is in the present embodiment via radially opposite grooves 27 in the first cylinder tube 23, which acts as a conductive inner layer stored.
  • the outer conductor 9 of the input-side coaxial line 3 is coupled to a second conductor structure 16 on the underside of the circuit board 14, which in the present example is a full-surface metallization, with a third conductor structure 17 on the upper side of the circuit board 14.
  • the third conductor structure 17 is arranged in the longitudinal direction parallel to the strip line 15 and surrounds the outside thereof. Via vias 18, the third conductor pattern 17 is further connected to the second conductor pattern 16 on the underside of the board 14, so that a potential equalization between the top and the bottom of the board 14 is ensured.
  • the second conductor pattern 16 and the third conductor pattern 17 are coupled via a longitudinal soldering 29 to the conductive inner layer, that is, the first cylinder tube 23.
  • the first cylinder tube 23 Since the first cylinder tube 23 completely surrounds the circuit board 14 in the longitudinal direction, an excellent shielding against interference signals from the outside is achieved in this way.
  • the first cylinder tube 23 is electrically isolated from the third cylinder tube 25 via the second cylinder tube 24 designed as insulation, but is capacitively coupled by the overlap in the longitudinal direction of the first cylinder tube 23 and the third cylinder tube 25.
  • the second cylinder tube 24 is closed in the direction of the pressure-secured signal passage 13 with the exception of a conductor bushing end, so that an electrical contact in the axial direction between the first cylinder tube 23 and the third cylinder tube 25 is excluded.
  • the third cylinder tube 25 is formed in the axial direction as seen, that it completely overlaps the first cylinder tube 23, wherein it is elongated in the direction of the pressure-protected signal passage 13 and provided with an increased wall thickness in order to ensure a secure mounting of this signal passage 13.
  • a wall thickness w of the second cylinder tube 24 formed as an insulator By a variation of a wall thickness w of the second cylinder tube 24 formed as an insulator, a dielectric strength of the present arrangement and thus the maximum insulation voltage can be easily set constructively.
  • the first cylinder tube 23 can be deformed so far by radial pressure that it becomes slightly oval in cross section. Along the longer major axis of the oval then the board 14 is inserted and then removed the radial pressure again. As a result, the first cylinder tube 23 deforms back into its round shape and clamps and simultaneously contacts the circuit board 14 at the edges. In this way, an otherwise necessary soldering can be saved for electrical contacting.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Waveguides (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Description

Die vorliegende Erfindung betrifft eine Hochfrequenzsignaldurchführung.The present invention relates to a high frequency signal feedthrough.

Entsprechende explosionsgeschützte Hochfrequenzsignaldurchführungen können beispielsweise in Geräten der Messtechnik, beispielsweise Feldgeräten mit Sensoren zur Messung von Füllständen, Grenzständen und Drücken eingesetzt werden. Entsprechende hochfrequente Signale können beispielsweise Mikrowellen- oder Radarsignale oder Signale aus dem Bereich des Mobilfunks sein. In der vorliegenden Anmeldung werden unter hochfrequenten Signalen solche ab einer Frequenz von 0,3 GHz verstanden.Corresponding explosion-proof high-frequency signal feedthroughs can be used, for example, in devices of measurement technology, for example field devices with sensors for measuring fill levels, limit levels and pressures. Corresponding high-frequency signals can be, for example, microwave or radar signals or signals from the field of mobile radio. In the present application, high-frequency signals are understood as those starting at a frequency of 0.3 GHz.

Eine Signaldurchführung im Sinne der vorliegenden Anmeldung soll eine Verbindungsvorrichtung für die Verbindung von zwei Leitern bezeichnen. Ein solcher Leiter kann ein elektrischer Leiter wie beispielsweise ein Kabel, eine Koaxialleitung, ein Hohlleiter, ein Streifenleiter oder eine andere Einrichtung sein, die geeignet ist, elektrische Signale zu führen. Mit einer Koaxialleitung sollen vorliegend sowohl Kabel als auch Stecker oder Buchsen oder jeglicher andere koaxiale Leitungsaufbau verstanden werden.A signal implementation in the sense of the present application is intended to designate a connection device for the connection of two conductors. Such a conductor may be an electrical conductor such as a cable, a coaxial line, a waveguide, a stripline, or other device capable of carrying electrical signals. In the present case, a coaxial cable should be understood to mean both cables and plugs or sockets or any other coaxial cable construction.

Feldgeräte der Messtechnik müssen häufig in rauen Umgebungsbedingungen angeordnet werden. Insbesondere ist es häufig nötig, diese in Behältern mit explosionsgefährlichen Materialien anzuordnen. In solchen Umgebungen ist es notwendig, explosionsgeschützte Gehäuse und damit auch explosionsgeschützte Signaldurchführungen einzusetzen, die verhindern, dass durch die in einem Gehäuse angeordnete Elektronik des Feldgerätes durch beispielsweise einen Funken eine Explosion auslöst. Bei derartigen Anwendungen ist eine Trennung zwischen einem Bereich, in dem sich das explosionsgefährdete Füllgut befindet und beispielsweise einem Bereich, in dem die Messelektronik angeordnet ist, aufrecht zu erhalten. Dies kann beispielsweise durch explosionsgeschützte Signaldurchführungen erreicht werden. Eine Abdichtung zwischen den Bereichen wird dabei beispielsweise durch abgedichtete Leiterdurchführungen, beispielsweise Glasdurchführungen oder Keramikdurchführungen, gewährleistet.Field instruments of measurement technology often have to be arranged in harsh environmental conditions. In particular, it is often necessary to arrange them in containers with explosive materials. In such environments, it is necessary to use explosion-proof housing and thus also explosion-proof signal feedthroughs, which prevent the explosion caused by the electronics of the field device, which are arranged in a housing, for example due to a spark. In such applications, a separation between an area in which is the explosion-endangered product and, for example, a region in which the measuring electronics is arranged to maintain. This can be achieved, for example, by means of explosion-proof signal feedthroughs. A seal between the areas is ensured for example by sealed conductor bushings, such as glass bushings or ceramic bushings.

Aus dem Stand der Technik bekannte Signaldurchführungen mittels derer miteinander zu verbindende Enden einer eingangsseitigen Koaxialleitung und einer ausgangsseitigen Koaxialleitung, die jeweils aus einem Innenleiter und einem den Innenleiter umgebenden Außenleiter bestehen, gekoppelt werden, weisen in der Regel ein Gehäuse mit einer in dem Gehäuse angeordneten druckfesten Signaldurchführung zumindest für den Innenleiter auf. Um mit solchen Signaldurchführungen explosionsgeschützte Signaldurchführungen aufzubauen, ist eine galvanische Trennung notwendig, die in der Regel über diskrete Bauteile, beispielsweise Kondensatoren oder Übertrager realisiert wird. Insbesondere die Anbindung dieser Bauteile für die galvanische Trennung des Außenleiters ist mit unvermeidbaren Induktivitäten verbunden, die sich negativ auf die Übertragungseigenschaften der Signaldurchführung auswirken. Beim Einsatz von Übertragern wird es ferner als nachteilig empfunden, dass diese das übertragbare Frequenzspektrum nach oben hin begrenzen.Conventionally known signal feedthroughs by means of which ends of an input-side coaxial line and an output-side coaxial line, which respectively consist of an inner conductor and an outer conductor surrounding the inner conductor, are coupled, as a rule have a housing with a pressure-resistant arranged in the housing Signal passage at least for the inner conductor. In order to build up explosion-proof signal feedthroughs with such signal feedthroughs, galvanic isolation is necessary, which as a rule is realized via discrete components, for example capacitors or transformers. In particular, the connection of these components for the galvanic isolation of the outer conductor is associated with unavoidable inductances, which have a negative effect on the transmission characteristics of the signal feedthrough. When using transmitters, it is also considered disadvantageous that they limit the transmittable frequency spectrum towards the top.

Die EP 161 486 A2 offenbart ein Trennglied zum Verbinden von zwei mit Koaxial-Steckverbindern abgeschlossenen Koaxialkabeln. Eine potentialfreie Gehäusedurchführung wird in der DE 20 2006 006 359 U1 beschrieben. Weiterer Stand der Technik ist in den Druckschriften DE 29 06 825 und DE 42 06 433 A1 beschrieben, die jeweils kapazitive Trennelemente offenbaren. Die DE 10 2013 005 340 A1 beschreibt eine elektrische Verbindung mit kapazitiver Kopplung.The EP 161 486 A2 discloses a separator for connecting two coaxial cables terminated with coaxial connectors. A floating housing feedthrough is in the DE 20 2006 006 359 U1 described. Further prior art is in the documents DE 29 06 825 and DE 42 06 433 A1 described, each of which discloses capacitive separating elements. The DE 10 2013 005 340 A1 describes an electrical connection with capacitive coupling.

Es ist die Aufgabe der vorliegenden Erfindung, parasitäre Induktivitäten zu vermeiden und dadurch eine explosionsgeschützte Hochfrequenzsignaldurchführung mit verbesserten Übertragungseigenschaften zur Verfügung zu stellen.It is the object of the present invention to avoid parasitic inductances and thereby provide an explosion-proof high frequency signal feedthrough with improved transmission characteristics.

Diese Aufgabe wird durch eine explosionsgeschützte Hochfrequenzsignaldurchführung mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved by an explosion-proof high-frequency signal feedthrough with the features of patent claim 1.

Eine erfindungsgemäße explosionsgeschützte Hochfrequenzsignaldurchführung, mittels derer miteinander zu verbindende Enden einer eingangsseitigen Koaxialleitung und einer ausgangsseitigen Koaxialleitung, jeweils bestehend aus einem Innenleiter und einem den Innenleiter umgebenden Außenleiter, miteinander gekoppelt werden, weist ein Gehäuse auf, in dem eine druckfeste Signaldurchführung für den Innenleiter angeordnet ist. Sie zeichnet sich dadurch aus, dass zentrisch in dem Gehäuse eine hochfrequenztaugliche Leiterstruktur angeordnet und mit dem Innenleiter gekoppelt ist, wobei zwischen einer Eingangsseite und einer Ausgangsseite wenigstens ein Element zur galvanischen Trennung angeordnet ist, wobei das Gehäuse eine Struktur zur galvanisch getrennten Kopplung der Außenleiter aufweist. Insbesondere ist der Innenleiter an eine in dem Gehäuse angeordnete und auf einer ersten Seite mit einer hochfrequenztauglichen ersten Leiterstruktur versehenen Platine mit zumindest einem, auf der Platine angeordneten, Trennelement zur galvanischen Signaltrennung gekoppelt.An explosion-proof high-frequency signal feedthrough according to the invention, by means of which the ends of an input-side coaxial line and an output-side coaxial line to be connected to one another are each coupled to one another consisting of an inner conductor and an outer conductor surrounding the inner conductor, has a housing in which a flameproof signal feed-through for the inner conductor is arranged , It is characterized in that centrally arranged in the housing a high frequency suitable conductor structure and is coupled to the inner conductor, wherein between an input side and an output side at least one element for electrical isolation is arranged, wherein the housing has a structure for galvanically isolated coupling of the outer conductor , In particular, the inner conductor is coupled to an arranged in the housing and provided on a first side with a high frequency suitable first conductor structure board with at least one, arranged on the board, separating element for galvanic signal separation.

Durch den Aufbau der vorzugsweise explosionsgeschützten Hochfrequenzsignaldurchführung mit einem Gehäuse und einer in dem Gehäuse angeordneten Platine, auf der eine hochfrequenztaugliche Leiterstruktur, beispielsweise eine Streifenleitung, vorgesehen ist, wird es möglich, Trennelemente zur galvanischen Signaltrennung, beispielweise Kondensatoren oder Übertrager auf dieser Platine anzuordnen und somit in dem Gehäuse zu platzieren. Auf diese Weise wird eine kompakte und gleichzeitig robuste Einheit geschaffen, mittels derer hochfrequente Signale galvanisch getrennt und druckgeschützt zwischen zwei Bereichen übertragen werden können.By building the preferably explosion-proof high-frequency signal feedthrough with a housing and in the Housing arranged board on which a high-frequency suitable conductor structure, such as a stripline, is provided, it is possible to arrange separation elements for galvanic signal separation, for example, capacitors or transformers on this board and thus to place in the housing. In this way, a compact and at the same time robust unit is created, by means of which high-frequency signals can be galvanically separated and pressure-protected transmitted between two areas.

Zur Ausbildung der Streifenleitung weist eine der ersten Seite gegenüber liegende zweite Seite der Platine eine zweite Leiterstruktur auf, mit der der Außenleiter gekoppelt ist.To form the stripline, a second side of the board opposite the first side has a second conductor structure to which the outer conductor is coupled.

So kann mit einem entsprechenden Aufbau erreicht werden, dass einerseits ein in der Regel über den Innenleiter übertragenes Signal über die Streifenleitung hochfrequenztechnisch günstig übertragen wird.Thus, it can be achieved with a corresponding structure, on the one hand, a high-frequency technically transmitted via the stripline, on the one hand, a signal transmitted generally via the inner conductor.

Eine weitere Verbesserung der hochfrequenztechnischen Eigenschaften kann erreicht werden, wenn der Außenleiter zusätzlich oder alternativ mit einer auf der ersten Seite angeordneten, die erste Leiterstruktur außenseitig umgebenden dritten Leiterstruktur gekoppelt ist.A further improvement in the high-frequency properties can be achieved if the outer conductor is additionally or alternatively coupled to a third conductor structure arranged on the first side and surrounding the first conductor structure on the outside.

Ist beispielsweise die erste Leiterstruktur als Streifenleitung ausgebildet, so kann auf der die Streifenleitung tragenden Seite der Platine in Längsrichtung seitlich und von dieser isoliert eine Metallisierung vorgesehen sein, die mit dem Außenleiter verbunden ist, sodass auch diesbezügliche Störsignale vermieden werden. Dies kann insbesondere derart geschehen, dass die zweite Leiterstruktur und die dritte Leiterstruktur elektrisch leitend miteinander verbunden sind, was insbesondere über Durchkontaktierungen gelöst werden kann. Es wird auf diese Weise ein Potentialausgleich zwischen der Unterseite und der Oberseite der Platine sichergestellt.If, for example, the first conductor structure is designed as a stripline, a metallization can be provided on the side of the board carrying the stripline in the longitudinal direction and insulated therefrom, which is connected to the outer conductor, so that interfering signals in this regard are also avoided. This can be done in particular such that the second conductor structure and the third conductor structure are electrically conductively connected to each other, which in particular can be solved via vias. It is ensured in this way a potential equalization between the bottom and the top of the board.

Ferner ist das Gehäuse erfindungsgemäß derart ausgebildet, dass es die Platine in Richtung einer Längsachse zumindest abschnittsweise zylindrisch umgibt, wobei das Gehäuse zumindest eine leitende innere Schicht und eine von der inneren Schicht galvanisch getrennte leitende äußere Schicht aufweist, die zumindest derart überlappen, dass sie kapazitiv gekoppelt sind, wobei ein eingangsseitiger Außenleiter mit der inneren Schicht und ein ausgangsseitiger Außenleiter mit der äußeren Schicht verbunden ist. Durch eine derartige Ausgestaltung des Gehäuses kann auf platzsparende Weise die im Inneren des Gehäuses angeordnete Platine gleichzeitig abschirmende galvanisch getrennte Kopplung des Außenleiters erreicht werden.Furthermore, according to the invention, the housing is designed such that it surrounds the board at least in sections in the direction of a longitudinal axis, wherein the housing has at least one conductive inner layer and a conductive outer layer which is galvanically separated from the inner layer and at least overlap in such a way that they are capacitive are coupled, wherein an input-side outer conductor with the inner layer and an output-side outer conductor is connected to the outer layer. Such a configuration of the housing can be achieved in a space-saving manner, the arranged inside the housing board simultaneously shielding galvanically isolated coupling of the outer conductor.

Eine Abschirmung der im Inneren des Gehäuses angeordneten Platine gegen Störsignale außerhalb kann besonders einfach erreicht werden, wenn die innere Schicht und/oder die äußere Schicht zylindrisch ausgebildet und durch eine Isolierung voneinander getrennt sind. Durch eine Dicke der zwischen der inneren Schicht und der äußeren Schicht angeordneten Isolierung kann außerdem in einfacher Weise eine Spannungsfestigkeit der galvanischen Trennung im Bereich des Außenleiters eingestellt werden. Ferner können durch eine geeignete Auswahl der Dicke und/oder der Dielektrizitätskonstante des verwendeten Materials die gebildete Kapazität und somit die elektrische Übertragungseigenschaft des entstehenden "Kondensators" beeinflusst werden.A shielding of the arranged inside the housing board against interference signals outside can be particularly easily achieved when the inner layer and / or the outer layer are cylindrical and separated by insulation. By a thickness of the insulation arranged between the inner layer and the outer layer, it is also possible in a simple manner to set a dielectric strength of the galvanic separation in the region of the outer conductor. Furthermore, by suitable selection of the thickness and / or dielectric constant of the material used, the capacitance formed and thus the electrical transfer property of the resulting "capacitor" can be influenced.

Eine besonders einfache Ausgestaltung kann erreicht werden, wenn die innere Schicht als ein innerhalb der äußeren Schicht angeordnetes erstes Zylinderrohr ausgebildet ist. Ferner kann die Isolierung als ein vorzugsweise durchführungsseitig zumindest teilweise geschlossenes, zweites Zylinderrohr ausgebildet sein, in dem das erste Zylinderrohr gelagert ist. Wenn die äußere Schicht als ein drittes Zylinderrohr ausgebildet ist, das das erste Zylinderrohr in Richtung der Längsachse vorzugsweise vollständig überlappt, kann eine gute kapazitive Kopplung zwischen dem ersten Zylinderrohr und dem dritten Zylinderrohr erreicht werden, wobei gleichzeitig ein kompakter und äußerst robuster Aufbau geschaffen wird. Das dritte Zylinderrohr kann dafür beispielsweise Verbindung mit Messgerätgehäusen und/oder -behältern ein Außengewinde und entsprechende Dichteinrichtungen aufweisen.A particularly simple embodiment can be achieved if the inner layer as one within the outer layer arranged first cylinder tube is formed. Furthermore, the insulation may be formed as a second cylinder tube, which is preferably at least partially closed on the side of the feedthrough, in which the first cylinder tube is mounted. If the outer layer is formed as a third cylinder tube, which preferably completely overlaps the first cylinder tube in the direction of the longitudinal axis, a good capacitive coupling between the first cylinder tube and the third cylinder tube can be achieved, at the same time providing a compact and extremely robust construction. For example, the third cylinder tube may have an external thread and corresponding sealing devices for connection to meter housings and / or containers.

Eine weitere Vereinfachung des Aufbaus kann erreicht werden, wenn die Platine in dem ersten Zylinderrohr gelagert ist. Eine solche Lagerung kann beispielsweise über ein Einschieben der Platine in zwei vorzugsweise radial gegenüber liegende in dem ersten Zylinderrohr angeordnete Nuten realisiert werden. Alternativ kann das erste Zylinderrohr aus zwei Halbschalen gebildet sein, zwischen denen die Platine sitzt. Durch eine Presspassung können so die beiden Halbschalen und die Platine gemeinsam in das zweite Zylinderrohr eingeführt und hinreichend sicher gehalten werden. Zusätzlich oder alternativ zur Halterung der Platine in Nuten des Zylinderrohrs kann die Platine in das erste Zylinderrohr eingepresst sein, das heißt, dass diese über in Radialrichtung wirkende Kräfte auf Grund einer elastischen Verformung des ersten Zylinderrohrs fest in diesem gehalten ist.A further simplification of the structure can be achieved if the circuit board is mounted in the first cylinder tube. Such a bearing can be realized for example by inserting the board in two preferably radially opposite arranged in the first cylinder tube grooves. Alternatively, the first cylinder tube can be formed from two half-shells, between which the board sits. By an interference fit so the two half-shells and the board can be jointly introduced into the second cylinder tube and held sufficiently secure. In addition or as an alternative to mounting the circuit board in grooves of the cylinder tube, the circuit board can be pressed into the first cylinder tube, that is to say that it is held firmly in radial direction by elastic deformation of the first cylinder tube.

Um eine signaltechnisch günstige Anbindung zu erreichen, ist erfindungsgemäß die zweite Leiterstruktur und/oder die dritte Leiterstruktur mit der inneren Schicht über eine Verlötung oder Federkontakte elektrisch leitend verbunden. Der eingangsseitige Außenleiter kann mit der inneren Schicht über eine Verlötung oder Federkontakte elektrisch leitend verbunden sein. Auf diese Weise wird eine Verteilung des Potentials des Außenleiters, in der Regel des Massepotentials, über die gesamte innere Schicht, das heißt insbesondere das erste Zylinderrohr, gewährleistet, wodurch eine gute kapazitive Ankopplung an die äußere Schicht erreicht wird.In order to achieve a signal technology favorable connection, according to the invention, the second conductor structure and / or the third conductor structure with the inner layer via a solder or spring contacts electrically connected. The input-side outer conductor may be electrically conductively connected to the inner layer via a soldering or spring contacts. In this way, a distribution of the potential of the outer conductor, usually the ground potential, over the entire inner layer, that is in particular the first cylinder tube, guaranteed, whereby a good capacitive coupling is achieved to the outer layer.

Die vorliegende Erfindung wird nachfolgend unter Bezugnahme auf ein Ausführungsbeispiel, das in der beigefügten Figur dargestellt ist, eingehend erläutert. Es zeigt:

Figur 1
Einen Längsschnitt durch ein Ausführungsbeispiel einer explosionsgeschützten Hochfrequenzsignaldurchführung.
The present invention will be explained below in detail with reference to an embodiment shown in the attached figure. It shows:
FIG. 1
A longitudinal section through an embodiment of an explosion-proof high-frequency signal feedthrough.

Figur 1 zeigt einen Längsschnitt durch ein Ausführungsbeispiel einer explosionsgeschützten Hochfrequenzsignaldurchführung 1, welche im Wesentlichen als koaxiale Anordnung eines ersten Zylinderrohrs 23, eines zweiten Zylinderrohrs 24 und eines dritten Zylinderrohrs 25 und einer druckgeschützten Signaldurchführung 13 gebildet ist. Innerhalb des koaxialen Aufbaus der Hochfrequenzsignaldurchführung 1 ist eine Platine 14 gelagert, die mit einer eingangsseitigen Koaxialleitung 3 verbindbar ist. Im vorliegenden Ausführungsbeispiel ist als eingangsseitige Koaxialleitung 3 eine Buchse gezeigt, die einen Innenleiter 7 und einen Außenleiter 9 eines Koaxialkabels mit einem entsprechenden Stecker kontaktieren kann. Der Innenleiter 7 der Buchse ist mit einer ersten hochfrequenztauglichen Leiterstruktur 15, vorliegend einer Streifenleitung elektrisch leitend verbunden, wobei die Streifenleitung 15 in Längsrichtung verlaufend zentral auf der Platine 14 angeordnet ist. Die Streifenleitung 15 ist im vorliegenden Ausführungsbeispiel durch drei Bauelemente, beispielsweise Trennelemente 21, zur galvanischen Signaltrennung unterbrochen und wird an dem der Buchse gegenüber liegenden Ende der Platine 14 wieder in eine koaxiale Leiterstruktur überführt, die durch die druckdichte Signaldurchführung 13 geführt und mit einer ausgangsseitigen Koaxialleitung 5 gekoppelt ist. Die ausgangsseitige Koaxialleitung 5 ist im vorliegenden Ausführungsbeispiel als zweite Buchse ausgebildet. FIG. 1 shows a longitudinal section through an embodiment of an explosion-proof high-frequency signal passage 1, which is formed substantially as a coaxial arrangement of a first cylinder tube 23, a second cylinder tube 24 and a third cylinder tube 25 and a pressure-protected signal feedthrough 13. Within the coaxial structure of the high-frequency signal feedthrough 1, a circuit board 14 is mounted, which is connectable to an input-side coaxial line 3. In the present embodiment, a socket is shown as the input side coaxial line 3, which can contact an inner conductor 7 and an outer conductor 9 of a coaxial cable with a corresponding connector. The inner conductor 7 of the socket is electrically conductively connected to a first high-frequency-capable conductor structure 15, in the present case a strip line, the strip line 15 being arranged centrally on the circuit board 14 in the longitudinal direction. The stripline 15 is interrupted in the present embodiment by three components, such as dividers 21, for galvanic signal separation and is transferred to the socket opposite the end of the board 14 again in a coaxial conductor structure, which is guided by the pressure-tight signal feedthrough 13 and an output side coaxial line 5 is coupled. The output side coaxial line 5 is formed in the present embodiment as a second socket.

Die Platine 14 ist im vorliegenden Ausführungsbeispiel über radial gegenüber liegenden Nuten 27 in dem ersten Zylinderrohr 23, das als leitende innere Schicht wirkt, gelagert. Der Außenleiter 9 der eingangsseitigen Koaxialleitung 3 ist mit einer zweiten Leiterstruktur 16 auf der Unterseite der Platine 14, welche im vorliegenden Beispiel als vollflächige Metallisierung ausgebildet ist, mit einer dritten Leiterstruktur 17 auf der Oberseite der Platine 14 gekoppelt. Die dritte Leiterstruktur 17 ist in Längsrichtung verlaufend parallel zu der Streifenleitung 15 angeordnet und umgibt diese außenseitig. Über Durchkontaktierungen 18 ist die dritte Leiterstruktur 17 ferner mit der zweiten Leiterstruktur 16 auf der Unterseite der Platine 14 verbunden, sodass ein Potentialausgleich zwischen der Oberseite und der Unterseite der Platine 14 gewährleistet ist. Ferner sind die zweite Leiterstruktur 16 und die dritte Leiterstruktur 17 über eine in Längsrichtung verlaufende Verlötung 29 an die leitende innere Schicht, das heißt das erste Zylinderrohr 23, gekoppelt.The circuit board 14 is in the present embodiment via radially opposite grooves 27 in the first cylinder tube 23, which acts as a conductive inner layer stored. The outer conductor 9 of the input-side coaxial line 3 is coupled to a second conductor structure 16 on the underside of the circuit board 14, which in the present example is a full-surface metallization, with a third conductor structure 17 on the upper side of the circuit board 14. The third conductor structure 17 is arranged in the longitudinal direction parallel to the strip line 15 and surrounds the outside thereof. Via vias 18, the third conductor pattern 17 is further connected to the second conductor pattern 16 on the underside of the board 14, so that a potential equalization between the top and the bottom of the board 14 is ensured. Further, the second conductor pattern 16 and the third conductor pattern 17 are coupled via a longitudinal soldering 29 to the conductive inner layer, that is, the first cylinder tube 23.

Da das erste Zylinderrohr 23 die Platine 14 in Längsrichtung vollständig umgreift, wird auf diese Weise eine hervorragende Abschirmung gegen Störsignale von außen erreicht. Das erste Zylinderrohr 23 ist über das als Isolierung ausgebildete zweite Zylinderrohr 24 von dem dritten Zylinderrohr 25 galvanisch getrennt, jedoch durch die Überlappung in Längsrichtung des ersten Zylinderrohrs 23 und des dritten Zylinderrohrs 25 kapazitiv gekoppelt. Um die galvanische Trennung sicherzustellen, ist das zweite Zylinderrohr 24 in Richtung der druckgesicherten Signaldurchführung 13 mit Ausnahme einer Leiterdurchführung endseitig verschlossen, sodass ein elektrischer Kontakt in Axialrichtung zwischen dem ersten Zylinderrohr 23 und dem dritten Zylinderrohr 25 ausgeschlossen wird. Das dritte Zylinderrohr 25 ist in Axialrichtung gesehen derart ausgebildet, dass es das erste Zylinderrohr 23 vollständig überlappt, wobei es in Richtung der druckgeschützten Signaldurchführung 13 verlängert ausgebildet und mit einer erhöhten Wandstärke versehen ist, um eine sichere Lagerung dieser Signaldurchführung 13 zu gewährleisten.Since the first cylinder tube 23 completely surrounds the circuit board 14 in the longitudinal direction, an excellent shielding against interference signals from the outside is achieved in this way. The first cylinder tube 23 is electrically isolated from the third cylinder tube 25 via the second cylinder tube 24 designed as insulation, but is capacitively coupled by the overlap in the longitudinal direction of the first cylinder tube 23 and the third cylinder tube 25. In order to ensure electrical isolation, the second cylinder tube 24 is closed in the direction of the pressure-secured signal passage 13 with the exception of a conductor bushing end, so that an electrical contact in the axial direction between the first cylinder tube 23 and the third cylinder tube 25 is excluded. The third cylinder tube 25 is formed in the axial direction as seen, that it completely overlaps the first cylinder tube 23, wherein it is elongated in the direction of the pressure-protected signal passage 13 and provided with an increased wall thickness in order to ensure a secure mounting of this signal passage 13.

Durch eine Variation einer Wandstärke w des als Isolator ausgebildeten zweiten Zylinderrohrs 24 kann eine Spannungsfestigkeit der vorliegenden Anordnung und damit die maximale Isolierspannung einfach konstruktiv eingestellt werden.By a variation of a wall thickness w of the second cylinder tube 24 formed as an insulator, a dielectric strength of the present arrangement and thus the maximum insulation voltage can be easily set constructively.

Es existieren ferner verschieden Möglichkeiten der Lagerung der Platine 14 in dem ersten Zylinderrohr 23, wobei neben einer Lagerung in Nuten 27 auch die Ausbildung des ersten Zylinderrohrs 23 mit zwei Halbschalen, die oberhalb und unterhalb der Platine 14 sitzen, möglich ist. Ferner ist es möglich, die Platine 14 mit oder ohne Ausbildung von Nuten 27 in das erste Zylinderrohr 23 einzupressen und so durch eine elastische Formung des ersten Zylinderrohrs 23 zu verklemmen.There are also different ways of mounting the board 14 in the first cylinder tube 23, wherein in addition to a storage in grooves 27 and the formation of the first cylinder tube 23 with two half-shells that sit above and below the board 14 is possible. Further, it is possible to press the circuit board 14 with or without the formation of grooves 27 in the first cylinder tube 23 and so jam by an elastic shaping of the first cylinder tube 23.

Alternativ kann das erste Zylinderrohr 23 durch radialen Druck so weit verformt werden, dass es im Querschnitt etwas oval wird. Entlang der längeren Hauptachse des Ovals wird anschließend die Platine 14 eingeschoben und dann den radialen Druck wieder weggenommen. Das erste Zylinderrohr 23 verformt sich dadurch zurück in seine runde Form und klemmt und kontaktiert gleichzeitig die Platine 14 an den Rändern. Auf diese Weise kann eine ansonsten notwendige Lötung zur elektrischen Kontaktierung eingespart werden.Alternatively, the first cylinder tube 23 can be deformed so far by radial pressure that it becomes slightly oval in cross section. Along the longer major axis of the oval then the board 14 is inserted and then removed the radial pressure again. As a result, the first cylinder tube 23 deforms back into its round shape and clamps and simultaneously contacts the circuit board 14 at the edges. In this way, an otherwise necessary soldering can be saved for electrical contacting.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
HochfrequenzsignaldurchführungRF signal feedthrough
33
Eingangsseitige KoaxialleitungInput coaxial line
55
Ausgangsseitige KoaxialleitungOutput side coaxial line
77
Innenleiterinner conductor
99
Außenleiterouter conductor
1111
Gehäusecasing
1313
SignaldurchführungSignal feedthrough
1414
Platinecircuit board
1515
Erste LeiterstrukturFirst ladder structure
1616
Zweite LeiterstrukturSecond ladder structure
1717
Dritte LeiterstrukturThird ladder structure
1818
Durchkontaktierungenvias
2121
Trennelementseparating element
2323
Innere Schicht/erstes ZylinderrohrInner layer / first cylinder tube
2424
Isolierung/zweites ZylinderrohrInsulation / second cylinder tube
2525
Äußere SchichtOuter layer
2727
Nutengroove
2929
Verlötungsoldering
LL
Längsachselongitudinal axis
ww
WandstärkeWall thickness

Claims (14)

  1. High frequency signal transmission (1), by means of which the ends to be connected to each other of an input-side coaxial line (3) and an output-side coaxial line (5), consisting of an inner conductor (7) and an outer conductor (9) surrounding the inner conductor (7) respectively, are able to be coupled to each other, having a housing (11), a signal transmission (13) arranged in the housing (11) for the inner conductor (7), wherein the inner conductor (7) is coupled to a conductor structure suitable for high frequency which is arranged centrally in the housing, wherein the housing (11) has at least one conductive inner layer (23) and a conductive outer layer (25) which is electrically isolated from the inner layer, and a circuit board (14) is arranged in the housing (11), on which the conductor structure suitable for high frequency is provided and at least one separating element (21) for electrical signal separation is arranged between an input side and an output side, wherein the housing has the structure for the electrically isolated coupling of the outer conductor, wherein an input-side outer conductor is able to be connected to the inner layer (23) and an output-side outer conductor is able to be connected to the outer layer (25), wherein the signal transmission (13) for the inner conductor (7) is arranged in the housing (11) in a pressure-resistant manner and the housing (11) is formed in such a way that it surrounds the circuit board (14) cylindrically in the direction of a longitudinal axis (L), wherein the inner layer (23) and the outer layer (25) are formed to overlap each other cylindrically and are isolated from each other by an insulator (24), such that they are capacitively coupled, wherein the circuit board (7) has a first conductor structure (15) suitable for high frequency on a first side,
    characterised in that the circuit board (7) has a second conductor structure (16) on the second side opposite the first side, and has a third conductor structure (17) arranged on the first side and surrounding the first conductor structure (15) on the outer side, wherein the second conductor structure (16) and/or the third conductor structure (17) are/is connected to the inner layer (23) in an electrically conductive manner via soldering (29) or spring contacts.
  2. High frequency signal transmission (1) according to claim 1,
    characterised in that the inner conductor (7) on the circuit board (14) is coupled to the at least one separating element (21) arranged on the circuit board (14) for electrical signal separation, wherein the outer conductor (9) is coupled to the second conductor structure (16).
  3. High frequency signal transmission (1) according to claim 2,
    characterised in that the outer conductor (9) is coupled to the third conductor structure (17).
  4. High frequency signal transmission (1) according to claims 2 and 3,
    characterised in that the second conductor structure (16) is connected to the third conductor structure (17) in an electrically conductive manner, in particular via plated through-holes (18).
  5. High frequency signal transmission (1) according to one of the preceding claims,
    characterised in that the outer layer (25) is formed cylindrically and is electrically isolated from the inner layer (23) by an insulator (24).
  6. High frequency signal transmission (1) according to claim 5,
    characterised in that the inner layer (23) is formed as a first cylinder tube (23) arranged within the outer layer (25).
  7. High frequency signal transmission (1) according to claim 5,
    characterised in that the insulator (24) is formed as a second cylinder tube which is preferably at least partially closed on the transmission side, in which the first cylinder tube (23) is mounted.
  8. High frequency signal transmission (1) according to claim 6 or 7,
    characterised in that the outer layer (25) is formed as a third cylinder tube which preferably completely overlaps the first cylinder tube (23) in the direction of the longitudinal axis (L).
  9. High frequency signal transmission (1) according to one of claims 6 to 8,
    characterised in that the circuit board (14) is mounted in the first cylinder tube (23).
  10. High frequency signal transmission (1) according to claim 9,
    characterised in that the circuit board (14) is held in two grooves (27) which are arranged to be preferably radially opposite each other in the first cylinder tube (23).
  11. High frequency signal transmission (1) according to claim 9,
    characterised in that the first cylinder tube (23) is formed from two half shells, between which the circuit board (14) sits.
  12. High frequency signal transmission (1) according to claim 9 or 10,
    characterised in that the circuit board (14) is pressed into the first cylinder tube (23).
  13. High frequency signal transmission (1) according to one of the preceding claims,
    characterised in that the input-side outer conductor is connected to the inner layer (23) in an electrically conductive manner via soldering (29) or spring contacts.
  14. High frequency signal transmission according to one of the preceding claims,
    characterised in that further electronic components are arranged on the circuit board (14).
EP14196411.4A 2014-12-04 2014-12-04 High frequency signalling Active EP3029782B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
HUE14196411A HUE031678T2 (en) 2014-12-04 2014-12-04 High frequency signalling
EP14196411.4A EP3029782B1 (en) 2014-12-04 2014-12-04 High frequency signalling
US14/880,315 US9853338B2 (en) 2014-12-04 2015-10-12 High frequency signal feed through
CN201510824956.8A CN105680218B (en) 2014-12-04 2015-11-24 High-frequency signal feedthrough component

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US9974201B1 (en) * 2016-10-28 2018-05-15 General Electric Company High power feedthrough for use with a high frequency power converter
KR101897398B1 (en) * 2017-03-21 2018-09-11 국방과학연구소 Feed through with high air-tightness for high voltage control apparatus
DE102017120266B4 (en) 2017-09-04 2019-03-21 Endress+Hauser Flowtec Ag Field device of measuring and automation technology with galvanic separation device
US10340872B1 (en) * 2018-04-03 2019-07-02 John Francis Masek Audio filter device for electronic interference with audio signals

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DE2906825A1 (en) * 1979-02-22 1980-09-04 Bosch Gmbh Robert Capacitative separating member for coaxial connection - has large chamber with capacitors for outer conductors and small chamber for inner conductor (NL 26.8.80)
DE3414811A1 (en) * 1984-04-19 1985-10-31 Kurt Wolf & Co Kg, 7547 Wildbad DISCONNECTING DEVICE FOR CONNECTING TWO COAXIAL CABLES TERMINATED WITH COAXIAL CONNECTORS
DE4206433A1 (en) * 1992-02-29 1993-09-02 Bosch Gmbh Robert Capacity separator for inner and outer leads of HF coaxial cable to be coupled together - has electrically conductive casing in two coaxial parts, each coupled to outer conductor and leaving meandering air gap in-between
US6778044B2 (en) 2002-01-23 2004-08-17 Vega Grieshaber Kg Coaxial line plug-in connection with integrated galvanic separation
DE202006006359U1 (en) * 2006-04-20 2006-07-13 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Potential-free housing feedthrough
US7278887B1 (en) 2006-05-30 2007-10-09 John Mezzalingua Associates, Inc. Integrated filter connector
EP2527803B1 (en) 2011-05-26 2020-10-21 VEGA Grieshaber KG Measuring system with a pressure-resistant feed-through

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DE102013005340A1 (en) * 2013-03-26 2014-10-02 Daimler Ag Electrical connection with capacitive coupling

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CN105680218B (en) 2017-09-22
CN105680218A (en) 2016-06-15
US9853338B2 (en) 2017-12-26
EP3029782A1 (en) 2016-06-08
US20160164154A1 (en) 2016-06-09

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