EP3029782A1 - Production de signal haute fréquence - Google Patents
Production de signal haute fréquence Download PDFInfo
- Publication number
- EP3029782A1 EP3029782A1 EP14196411.4A EP14196411A EP3029782A1 EP 3029782 A1 EP3029782 A1 EP 3029782A1 EP 14196411 A EP14196411 A EP 14196411A EP 3029782 A1 EP3029782 A1 EP 3029782A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductor
- frequency signal
- cylinder tube
- housing
- signal feedthrough
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000011664 signaling Effects 0.000 title 1
- 239000004020 conductor Substances 0.000 claims abstract description 81
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 238000005476 soldering Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
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.
- An explosion-proof high-frequency signal feedthrough by means of which mutually connected ends of an input-side coaxial line and an output-side coaxial line, each consisting of an inner conductor and an outer conductor surrounding the inner conductor, are coupled to one another, has a housing in which a preferably pressure-resistant signal feed-through for the inner conductor is arranged is. It is characterized in that a high-frequency suitable conductor structure is preferably arranged centrally in the housing and 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 having.
- the inner conductor can be coupled to a printed circuit board 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.
- the preferably explosion-proof high-frequency signal feedthrough with a housing and a board arranged in the housing, 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 robust unit is created by means of which high-frequency Signals can be transmitted galvanically separated and pressure-protected between two areas.
- 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 strip line
- a metallization can be provided laterally on the side of the board carrying the strip line and insulated therefrom, which is connected to the outer conductor, so that interfering signals in this regard are also avoided.
- This can in particular be done in such a way that the second conductor structure and the third conductor structure are electrically conductively connected to one another, which can be achieved in particular via plated-through holes. It is ensured in this way a potential equalization between the bottom and the top of the board.
- the housing may be formed such that it surrounds the circuit board at least partially cylindrical in the direction of a longitudinal axis, wherein the housing at least one conductive inner layer and a conductive outer layer electrically isolated from the inner layer, which at least overlap so that they are capacitively coupled, wherein an input-side outer conductor to 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 is cylindrical and preferably separated from each other 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 inner layer is formed as a first cylinder tube arranged within the outer layer.
- 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 a compact and extremely robust construction is created.
- 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 input side outer conductor and / or the second conductor structure and / or the third conductor structure with the inner layer via a solder or spring contacts or other suitable means are electrically connected.
- 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.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Waveguides (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14196411.4A EP3029782B1 (fr) | 2014-12-04 | 2014-12-04 | Production de signal haute fréquence |
HUE14196411A HUE031678T2 (en) | 2014-12-04 | 2014-12-04 | High Frequency Signal Transmitter |
US14/880,315 US9853338B2 (en) | 2014-12-04 | 2015-10-12 | High frequency signal feed through |
CN201510824956.8A CN105680218B (zh) | 2014-12-04 | 2015-11-24 | 高频信号馈通件 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14196411.4A EP3029782B1 (fr) | 2014-12-04 | 2014-12-04 | Production de signal haute fréquence |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3029782A1 true EP3029782A1 (fr) | 2016-06-08 |
EP3029782B1 EP3029782B1 (fr) | 2016-11-02 |
Family
ID=52011060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14196411.4A Active EP3029782B1 (fr) | 2014-12-04 | 2014-12-04 | Production de signal haute fréquence |
Country Status (4)
Country | Link |
---|---|
US (1) | US9853338B2 (fr) |
EP (1) | EP3029782B1 (fr) |
CN (1) | CN105680218B (fr) |
HU (1) | HUE031678T2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017120266A1 (de) | 2017-09-04 | 2019-03-07 | Endress+Hauser Flowtec Ag | Feldgerät der Mess- und Automatisierungstechnik mit galvanischer Trennvorrichtung |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9974201B1 (en) * | 2016-10-28 | 2018-05-15 | General Electric Company | High power feedthrough for use with a high frequency power converter |
KR101897398B1 (ko) * | 2017-03-21 | 2018-09-11 | 국방과학연구소 | 고기밀도를 갖는 고전압 제어장치용 피드스루 |
US10340872B1 (en) * | 2018-04-03 | 2019-07-02 | John Francis Masek | Audio filter device for electronic interference with audio signals |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2906825A1 (de) * | 1979-02-22 | 1980-09-04 | Bosch Gmbh Robert | Kapazitives trennstueck |
EP0161486A2 (fr) * | 1984-04-19 | 1985-11-21 | Kurt Wolf & Co. KG | Maillon séparateur pour la connexion de deux câbles coaxiaux, términés par des connecteurs coaxiaux à fiche |
DE4206433A1 (de) * | 1992-02-29 | 1993-09-02 | Bosch Gmbh Robert | Kapazitives trennstueck |
DE202006006359U1 (de) * | 2006-04-20 | 2006-07-13 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Potentialfreie Gehäusedurchführung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6778044B2 (en) | 2002-01-23 | 2004-08-17 | Vega Grieshaber Kg | Coaxial line plug-in connection with integrated galvanic separation |
US7278887B1 (en) | 2006-05-30 | 2007-10-09 | John Mezzalingua Associates, Inc. | Integrated filter connector |
HUE052056T2 (hu) | 2011-05-26 | 2021-04-28 | Grieshaber Vega Kg | Mérõrendszer nyomásálló átvezetéssel |
DE102013005340A1 (de) * | 2013-03-26 | 2014-10-02 | Daimler Ag | Elektrische Verbindung mit kapazitiver Kopplung |
-
2014
- 2014-12-04 EP EP14196411.4A patent/EP3029782B1/fr active Active
- 2014-12-04 HU HUE14196411A patent/HUE031678T2/en unknown
-
2015
- 2015-10-12 US US14/880,315 patent/US9853338B2/en active Active
- 2015-11-24 CN CN201510824956.8A patent/CN105680218B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2906825A1 (de) * | 1979-02-22 | 1980-09-04 | Bosch Gmbh Robert | Kapazitives trennstueck |
EP0161486A2 (fr) * | 1984-04-19 | 1985-11-21 | Kurt Wolf & Co. KG | Maillon séparateur pour la connexion de deux câbles coaxiaux, términés par des connecteurs coaxiaux à fiche |
DE4206433A1 (de) * | 1992-02-29 | 1993-09-02 | Bosch Gmbh Robert | Kapazitives trennstueck |
DE202006006359U1 (de) * | 2006-04-20 | 2006-07-13 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Potentialfreie Gehäusedurchführung |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017120266A1 (de) | 2017-09-04 | 2019-03-07 | Endress+Hauser Flowtec Ag | Feldgerät der Mess- und Automatisierungstechnik mit galvanischer Trennvorrichtung |
WO2019042780A1 (fr) | 2017-09-04 | 2019-03-07 | Endress+Hauser Flowtec Ag | Appareil de terrain de la technique de la mesure et de l'automatisation pourvu de dispositif de séparation galvanique |
DE102017120266B4 (de) | 2017-09-04 | 2019-03-21 | Endress+Hauser Flowtec Ag | Feldgerät der Mess- und Automatisierungstechnik mit galvanischer Trennvorrichtung |
US10944413B2 (en) | 2017-09-04 | 2021-03-09 | Endress+Hauser Flowtec Ag | Field device in measurement and automation technology comprising a galvanic isolation device |
Also Published As
Publication number | Publication date |
---|---|
EP3029782B1 (fr) | 2016-11-02 |
US20160164154A1 (en) | 2016-06-09 |
US9853338B2 (en) | 2017-12-26 |
HUE031678T2 (en) | 2017-07-28 |
CN105680218A (zh) | 2016-06-15 |
CN105680218B (zh) | 2017-09-22 |
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