DE3638123A1 - Device for screening electronic apparatuses for test purposes against field-related electromagnetic interference - Google Patents
Device for screening electronic apparatuses for test purposes against field-related electromagnetic interferenceInfo
- Publication number
- DE3638123A1 DE3638123A1 DE19863638123 DE3638123A DE3638123A1 DE 3638123 A1 DE3638123 A1 DE 3638123A1 DE 19863638123 DE19863638123 DE 19863638123 DE 3638123 A DE3638123 A DE 3638123A DE 3638123 A1 DE3638123 A1 DE 3638123A1
- Authority
- DE
- Germany
- Prior art keywords
- electromagnetic interference
- conductive material
- field
- electronic apparatuses
- test purposes
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0043—Casings being flexible containers, e.g. pouch, pocket, bag
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Vorrichtung zur Ab schirmung elektronischer Geräte zu Prüfzwecken gegen feldge bundene elektromagnetische Störungen.The present invention relates to a device for Ab shielding of electronic devices for testing purposes against field bound electromagnetic interference.
Bei der Inbetriebsetzung von Anlagen sowie im EMC-Prüflabor (EMC bedeutet Electro-Magnetic-Compatibility) treten häufig Situationen auf, bei denen im Hinblick auf ein elektrisches oder elektronisches Gerät oder auch einen ganzen Geräteschrank zu Prüfzwecken zwischen leitungsgebundener und feldgebundener Störgrösse unterschieden werden muss, die entweder von aussen auf das Gerät einwirkt oder von diesem erzeugt wird und auf seine Umgebung einwirkt. Die Unterscheidung zwischen feldge bundener oder leitungsgebundener Störgrösse erfordert entweder eine Abschirmung des betrachteten Geräts gegen feldgebundene Störungen oder den Einsatz von Filtern in den Leitungen, mit denen das Gerät mit seiner Umgebung verbunden ist und kommu niziert. Insbesondere bei einer Vielzahl verschiedener Leitungen ist der Einsatz von Filtern zu aufwendig. Die Filter müssten an jede einzelne der Leitungen und an deren Charakteristika angepasst werden. Letztere sind zumeist garnicht genau genug bekannt. Im Vergleich dazu ist das Abschirmen feldgebundener Störungen zwar prinzipiell einfach, doch fehlt in der Regel eine geeignete Abschirmvorrichtung, mit der eine solche Ab schirmung kurzfristig aber wirksam genug am Aufstellungsort des Geräts vorgenommen werden kann.When commissioning systems and in the EMC test laboratory (EMC means Electro-Magnetic-Compatibility) occur frequently Situations where in terms of an electrical or electronic device or an entire device cabinet for test purposes between line-bound and field-bound Disturbance must be differentiated, either from the outside acts on or is generated by the device and on affects his surroundings. The distinction between feldge bound or wired disturbance requires either shielding the device under consideration against field-bound devices Faults or the use of filters in the lines with to whom the device is connected to its environment and commu nicated. Especially with a variety of different lines the use of filters is too complex. The filters would have to to each one of the lines and their characteristics be adjusted. The latter are usually not accurate enough known. In comparison, shielding is more field-bound Faults are simple in principle, but are usually missing a suitable shielding device with which such a short-term shielding but effective enough at the installation site of the device can be made.
Es ist Aufgabe der vorliegenden Erfindung, eine Vorrichtung der eingangs genannten Art anzugeben, mit der ein Gerät oder ein Geräteschrank an seinem Aufstellungsort kurzfristig wirksam gegen feldgebundene Störungen abgeschirmt werden kann. Die Vorrichtung soll leicht sein und nur einen geringen Raum einneh men. Sie soll insofern leicht transportabel sein.It is an object of the present invention to provide a device of the type mentioned at the beginning with which a device or an equipment cabinet at its installation site is effective at short notice can be shielded against field-related interference. The The device should be light and occupy only a small space men. In this respect, it should be easy to transport.
Die genannten sowie weitere Aufgaben werden gemäss der vorlie genden Erfindung gelöst durch die Angabe einer neuen Vorrichtung mit den Merkmalen des Anspruchs 1.The above and other tasks are performed in accordance with the ing invention solved by specifying a new device with the features of claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unter ansprüchen gekennzeichnet. Mit der erfindungsgemässen Vorrich tung lässt sich am Aufstellungsort des jeweils zu prüfenden Geräts schnell und einfach eine wirkungsvolle Abschirmung gegen Feldstörungen realisieren. Besonders wirksam ist die Abschirmvorrichtung nach der Erfindung für Feldkomponenten mit Frequenzen oberhalb von ca. 10 MHz. Im Frequenzbereich unterhalb von 10 MHz treten in der Praxis normalerweise keine Strahlungsanteile auf, die elektrische oder elektronische Geräte gefährden könnten.Advantageous embodiments of the invention are in the sub claims marked. With the device according to the invention can be checked at the installation site of the person to be tested Effective shielding quickly and easily against field disturbances. It is particularly effective Shielding device according to the invention for field components with frequencies above approx. 10 MHz. In the frequency domain In practice, there is normally no signal below 10 MHz Radiation components that are electrical or electronic Could endanger devices.
Die Abschirmvorrichtung nach der Erfindung lässt sich zusammen falten und im zusammengefalteten Zustand platzsparend trans portieren. Sie könnte beispielsweise als ständiger Ausrüstungs gegenstand in einem Servicekoffer von einem EMC-Techniker mitgeführt werden. The shielding device according to the invention can be combined fold and trans when folded to save space port. You could, for example, as permanent equipment item in a service case by an EMC technician be carried along.
Weitere Merkmale und Vorteile der vorliegenden Erfindung ergeben sich aus der nachstehenden ausführlichen Beschreibung insbe sondere unter Berücksichtigung der beigefügten Zeichnung. Diese zeigt in perspektivischer Darstellung eine Vorrichtung nach der Erfindung.Further features and advantages of the present invention result in particular from the detailed description below special considering the attached drawing. This shows a device in perspective according to the invention.
Es wird nunmehr auf die Zeichnung bezug genommen. In dieser ist mit 1 eine Hülle bezeichnet. Eingeschlossen in der Hülle 1 ist ein elektrisches Gerät 2. Dieses ist, weil in der Hülle 1 ansich nicht sichtbar, strichliert gezeichnet. Die Hülle 1 besteht aus einem flexiblen Material. Sie kann sich insofern der Form des Gerätes 2 oder auch der Form anderer Geräte in einem gewissen Umfang anpassen. Das Material der Hülle 1 ist weiter elektrisch leitend. Es wirkt somit als Abschirmung für das Gerät 2 gegen auf das Gerät von aussen einwirkende oder von diesem ausgehende feldgebundene elektromagnetische Störungen. Damit das Gerät 2 in die Hülle 1 in einfacher Weise einbringbar ist und auch aus dieser wieder entnommen werden kann, ist die Hülle 1 mit einem Reissverschluss 3 versehen. Dieser ist ebenfals elektrisch leitend. An Stelle eines Reiss verschlusses könnte auch ein Klettverschluss verwendet sein. Weiter weist die Hülle 1 noch einen schlauchartigen Ansatz 4 auf. Durch diesen können Leitungen zum Gerät 2 hin bzw. von diesem weg geführt werden. Es ist nur eine solche Leitung 5 in der Zeichnung dargestellt. Vorzugsweise erstreckt sich der Reissverschluss 3 auch über den schlauchartigen Ansatz 4. Es können dann auch fest angeschlossene Leitungen in den Ansatz 4 eingebracht werden. Als Material für den Ansatz 4 kann das gleiche wie für die Hülle 1 verwendet sein.Reference is now made to the drawing. In this, 1 denotes a shell. An electrical device 2 is enclosed in the casing 1 . This is shown in dashed lines because it is not visible in the envelope 1 . The envelope 1 is made of a flexible material. In this respect, it can adapt to a certain extent to the shape of the device 2 or to the shape of other devices. The material of the casing 1 is also electrically conductive. It thus acts as a shield for the device 2 against electromagnetic interference acting on the device from the outside or emanating from it. So that the device 2 can be inserted into the casing 1 in a simple manner and can also be removed from it again, the casing 1 is provided with a zipper 3 . This is also electrically conductive. A Velcro fastener could also be used instead of a zipper. Furthermore, the casing 1 also has a tubular extension 4 . This can be used to route lines to and from the device 2 . Only one such line 5 is shown in the drawing. The zipper 3 preferably also extends over the tubular extension 4 . Firmly connected lines can then also be introduced into attachment 4 . The same material as for the cover 1 can be used as the material for the attachment 4 .
Ein geeignetes Material wird beispielsweise unter dem Namen Devex von einer Firma Devex S.A., 1618 CHATEL-ST-DENIS, Schweiz, auf dem Markt angeboten. Mit diesem Material lässt sich für Frequenzen oberhalb von 10 MHz ohne weiteres Dämpfung der feldgebundenen elektromagnetischen Störungen von besser als 40 dB realisieren.A suitable material is, for example, under the name Devex from a company Devex S.A., 1618 CHATEL-ST-DENIS, Switzerland, offered on the market. This material can be used for Frequencies above 10 MHz without further attenuation of the field-bound electromagnetic interference of better than Realize 40 dB.
Die Hülle 1 ist zur Spannungsisolation an ihrer Innenseite vorzugsweise noch mit einer Isolationsschicht versehen. Es können im Innern der Hülle 1 auch Kontaktstreifen wie der Kontaktstreifen 6 vorgesehen sein. Mit solchen Kontaktstreifen kann vom leitfähigen Material der Hülle 1 in einfacher Weise eine gute elektrische, sowie niederinduktive Verbindung zum Gerät 2 hergestellt werden. Zur Kontaktierung der Hülle 1 selbst mit einem geeigneten Erdungspunkt, können an ihrer Aussenseite entsprechende Kontaktstreifen, wie der Kontakt streifen 7, vorgesehen sein.The envelope 1 is preferably provided with an insulation layer on its inside for voltage insulation. Contact strips such as contact strip 6 can also be provided in the interior of envelope 1 . With such contact strips, a good electrical and low-inductive connection to the device 2 can be produced in a simple manner from the conductive material of the casing 1 . For contacting the sheath 1 itself with a suitable grounding point, corresponding contact strips, such as the contact strip 7 , can be provided on its outside.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863638123 DE3638123A1 (en) | 1986-11-08 | 1986-11-08 | Device for screening electronic apparatuses for test purposes against field-related electromagnetic interference |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863638123 DE3638123A1 (en) | 1986-11-08 | 1986-11-08 | Device for screening electronic apparatuses for test purposes against field-related electromagnetic interference |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3638123A1 true DE3638123A1 (en) | 1988-05-19 |
Family
ID=6313485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863638123 Ceased DE3638123A1 (en) | 1986-11-08 | 1986-11-08 | Device for screening electronic apparatuses for test purposes against field-related electromagnetic interference |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3638123A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0494017A1 (en) * | 1991-01-04 | 1992-07-08 | Thomson-Csf | Device for global radio-shielding an antenna |
EP0659041A1 (en) * | 1993-12-16 | 1995-06-21 | Schlegel Corporation | EMI shielding having flexible conductive envelope |
US5597979A (en) * | 1995-05-12 | 1997-01-28 | Schlegel Corporation | EMI shielding having flexible condustive sheet and I/O Gasket |
DE19528764A1 (en) * | 1995-08-04 | 1997-02-06 | Klaus Dipl Ing Miller | Shield for radiation fields esp. for electronic devices such as computer keyboard, printer etc - has openings into which non-conductive components are arranged for shielding |
FR2753335A1 (en) * | 1996-09-11 | 1998-03-13 | Siemens Automotive Sa | Electronic circuit screening device for automotive applications |
DE19912232A1 (en) * | 1999-03-17 | 2000-09-28 | Wavetek Gmbh | Portable shield screen device e.g. for measuring radio power of mobile telephone, has base and lip which is opened by hinge and side panels have slanted contact surfaces |
DE4132985C2 (en) * | 1990-11-20 | 2003-04-10 | Kitagawa Ind Co Ltd | Conductive mat for shielding against electromagnetic waves |
DE102005061336A1 (en) * | 2005-12-21 | 2007-06-28 | Rohde & Schwarz Gmbh & Co. Kg | Electromagnetic interferences shielding housing for electronic device, has housing parts, and slot that is closed in electromagnetically tight manner between housing parts by Velcro fastener unit |
WO2007110653A2 (en) * | 2006-03-28 | 2007-10-04 | Forensic Science Service Limited | Improvements in and relating to isolation |
EP1890527A1 (en) * | 2005-06-10 | 2008-02-20 | Regina Co., Ltd. | Electric apparatus system with electromagnetic wave suppressing function |
FR2961346A1 (en) * | 2010-06-15 | 2011-12-16 | Peugeot Citroen Automobiles Sa | Electronic component i.e. electronic board, for use during assembling on structure of motor vehicle at workshops, has precuts formed between openings and sachet edge to form rupture bonds to release sachet from fixation or connection zone |
US20120285737A1 (en) * | 2011-05-13 | 2012-11-15 | E.C. Ryan International, Ltd. | Portable Electromagnetic Interference Shield |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1155824B (en) * | 1955-07-27 | 1963-10-17 | Siemens Ag | Detachable connection like a zipper for electrical shielding devices |
DE1178912B (en) * | 1955-07-28 | 1964-10-01 | Siemens Ag | Zipper for detachable connection of electrically conductive parts |
DE2328951A1 (en) * | 1972-06-09 | 1973-12-20 | Ducros Emile Paul J J | GROUND SEAL FOR ELECTRIC AND ELECTROMAGNETIC SHIELDING OF ENCLOSURES |
DE2708500C2 (en) * | 1976-03-02 | 1982-12-02 | Allied Corp., Morris Township, N.J. | Flexible electromagnetic shielding device |
DE3333015A1 (en) * | 1982-09-13 | 1984-03-15 | TDK Corporation, Tokyo | FERRITE COMPOSITE STRUCTURE |
DE3535807A1 (en) * | 1984-10-10 | 1986-04-17 | Peter Dipl.-Volksw. 8600 Bamberg Raupach | Wall for a test room which is to be screened |
DE3631531A1 (en) * | 1985-10-02 | 1987-04-02 | Zeis Hans Juergen | Screen for electronic assemblies |
-
1986
- 1986-11-08 DE DE19863638123 patent/DE3638123A1/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1155824B (en) * | 1955-07-27 | 1963-10-17 | Siemens Ag | Detachable connection like a zipper for electrical shielding devices |
DE1178912B (en) * | 1955-07-28 | 1964-10-01 | Siemens Ag | Zipper for detachable connection of electrically conductive parts |
DE2328951A1 (en) * | 1972-06-09 | 1973-12-20 | Ducros Emile Paul J J | GROUND SEAL FOR ELECTRIC AND ELECTROMAGNETIC SHIELDING OF ENCLOSURES |
DE2708500C2 (en) * | 1976-03-02 | 1982-12-02 | Allied Corp., Morris Township, N.J. | Flexible electromagnetic shielding device |
DE3333015A1 (en) * | 1982-09-13 | 1984-03-15 | TDK Corporation, Tokyo | FERRITE COMPOSITE STRUCTURE |
DE3535807A1 (en) * | 1984-10-10 | 1986-04-17 | Peter Dipl.-Volksw. 8600 Bamberg Raupach | Wall for a test room which is to be screened |
DE3631531A1 (en) * | 1985-10-02 | 1987-04-02 | Zeis Hans Juergen | Screen for electronic assemblies |
Non-Patent Citations (1)
Title |
---|
J.Deutsch u. O.Zinke:"Abschirmung von Meßräumen und Meßgeräten gegen elektromagnetische Felder". In: Frequenz 1953, Bd. 7, Nr. 4, S.94-101 * |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4132985C2 (en) * | 1990-11-20 | 2003-04-10 | Kitagawa Ind Co Ltd | Conductive mat for shielding against electromagnetic waves |
EP0494017A1 (en) * | 1991-01-04 | 1992-07-08 | Thomson-Csf | Device for global radio-shielding an antenna |
EP0659041A1 (en) * | 1993-12-16 | 1995-06-21 | Schlegel Corporation | EMI shielding having flexible conductive envelope |
US5597979A (en) * | 1995-05-12 | 1997-01-28 | Schlegel Corporation | EMI shielding having flexible condustive sheet and I/O Gasket |
DE19528764A1 (en) * | 1995-08-04 | 1997-02-06 | Klaus Dipl Ing Miller | Shield for radiation fields esp. for electronic devices such as computer keyboard, printer etc - has openings into which non-conductive components are arranged for shielding |
DE19528764C2 (en) * | 1995-08-04 | 1998-07-02 | Klaus Dipl Ing Miller | Housing for shielding from electromagnetic fields |
FR2753335A1 (en) * | 1996-09-11 | 1998-03-13 | Siemens Automotive Sa | Electronic circuit screening device for automotive applications |
DE19912232A1 (en) * | 1999-03-17 | 2000-09-28 | Wavetek Gmbh | Portable shield screen device e.g. for measuring radio power of mobile telephone, has base and lip which is opened by hinge and side panels have slanted contact surfaces |
EP1890527A1 (en) * | 2005-06-10 | 2008-02-20 | Regina Co., Ltd. | Electric apparatus system with electromagnetic wave suppressing function |
EP1890527A4 (en) * | 2005-06-10 | 2010-09-01 | Regina Co Ltd | Electric apparatus system with electromagnetic wave suppressing function |
US7709749B2 (en) | 2005-12-21 | 2010-05-04 | Rohde & Schwarz Gmbh & Co. Kg | Housing for shielding from electromagnetic interference |
WO2007079808A3 (en) * | 2005-12-21 | 2007-11-29 | Rohde & Schwarz | Housing for screening from electromagnetic interferences |
WO2007079808A2 (en) * | 2005-12-21 | 2007-07-19 | Rohde & Schwarz Gmbh & Co. Kg | Housing for screening from electromagnetic interferences |
DE102005061336A1 (en) * | 2005-12-21 | 2007-06-28 | Rohde & Schwarz Gmbh & Co. Kg | Electromagnetic interferences shielding housing for electronic device, has housing parts, and slot that is closed in electromagnetically tight manner between housing parts by Velcro fastener unit |
WO2007110653A3 (en) * | 2006-03-28 | 2008-01-10 | Forensic Science Service Ltd | Improvements in and relating to isolation |
WO2007110653A2 (en) * | 2006-03-28 | 2007-10-04 | Forensic Science Service Limited | Improvements in and relating to isolation |
GB2450044A (en) * | 2006-03-28 | 2008-12-10 | Forensic Science Service Ltd | Improvements in and relating to isolation |
FR2961346A1 (en) * | 2010-06-15 | 2011-12-16 | Peugeot Citroen Automobiles Sa | Electronic component i.e. electronic board, for use during assembling on structure of motor vehicle at workshops, has precuts formed between openings and sachet edge to form rupture bonds to release sachet from fixation or connection zone |
US20120285737A1 (en) * | 2011-05-13 | 2012-11-15 | E.C. Ryan International, Ltd. | Portable Electromagnetic Interference Shield |
US8878080B2 (en) * | 2011-05-13 | 2014-11-04 | E.C. Ryan International, Inc. | Portable electromagnetic interference shield |
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Legal Events
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OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |