CA2009431A1 - Emi reducing circuit card apparatus and related methods - Google Patents
Emi reducing circuit card apparatus and related methodsInfo
- Publication number
- CA2009431A1 CA2009431A1 CA2009431A CA2009431A CA2009431A1 CA 2009431 A1 CA2009431 A1 CA 2009431A1 CA 2009431 A CA2009431 A CA 2009431A CA 2009431 A CA2009431 A CA 2009431A CA 2009431 A1 CA2009431 A1 CA 2009431A1
- Authority
- CA
- Canada
- Prior art keywords
- bay
- opening
- strip
- card
- circuit card
- 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
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
- H05K9/0062—Structures of standardised dimensions, e.g. 19" rack, chassis for servers or telecommunications
Abstract
A circuit card comprises a printed wiring board, a plastic faceplate therefor, and a resilient electroconductive sheet metal strip extending the length of such plate and fastened to its rear side. The strip at its opposite ends provides spring contacts electrically coupled by the strip's middle part. The card is adapted to be inserted in a holding bay with a rectangular front opening of greater width thanheight and bordered at its top and bottom by designation strips for the cards to be put in such bay. Metallic structural means adjacent the opening provides an a.c. circuit path extending around the opening in a closed loop. When the card is inserted in the bay, the spring contacts engage with metal-surfaced regions on the designation strips to provide an electrical shunt across such loop and, thereby, to reduce electromagnetic interference radiating through such opening from the bay's interior.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US352,795 | 1989-05-16 | ||
US07/352,795 US4991062A (en) | 1989-05-16 | 1989-05-16 | EMI reducing circuit card apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2009431A1 true CA2009431A1 (en) | 1990-11-16 |
CA2009431C CA2009431C (en) | 1995-08-15 |
Family
ID=23386520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002009431A Expired - Fee Related CA2009431C (en) | 1989-05-16 | 1990-02-06 | Emi reducing circuit card apparatus and related methods |
Country Status (7)
Country | Link |
---|---|
US (1) | US4991062A (en) |
EP (1) | EP0398565B1 (en) |
JP (1) | JPH0311700A (en) |
AU (1) | AU612078B2 (en) |
CA (1) | CA2009431C (en) |
DE (1) | DE69012648T2 (en) |
ES (1) | ES2060036T3 (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2747113B2 (en) * | 1990-11-28 | 1998-05-06 | 北川工業株式会社 | Housing with built-in conductive wire |
US5118904A (en) * | 1991-02-04 | 1992-06-02 | At&T Bell Laboratories | Strip with contact regions for use with EMI reducing circuit card apparatus |
US5386346A (en) * | 1991-08-29 | 1995-01-31 | Hubbell Incorporated | Circuit card assembly with shielding assembly for reducing EMI emissions |
US5289347A (en) * | 1992-06-04 | 1994-02-22 | Digital Equipment Corporation | Enclosure for electronic modules |
US5313016A (en) * | 1992-10-19 | 1994-05-17 | Synoptics Communications, Inc. | Auto-insertable electromagnetic interference ground clip |
US5491613A (en) * | 1994-01-31 | 1996-02-13 | Hubbell Incorporated | Electrical circuit card with reduced EMI emission |
US5463532A (en) * | 1994-04-15 | 1995-10-31 | Hubbell Incorporated | Electrical circuit card with EMI shielding strip adapted to make contact with non-outwardly facing surface of card-receiving housing |
US5717533A (en) | 1995-01-13 | 1998-02-10 | Methode Electronics Inc. | Removable optoelectronic module |
US6220878B1 (en) | 1995-10-04 | 2001-04-24 | Methode Electronics, Inc. | Optoelectronic module with grounding means |
US6272010B1 (en) * | 1998-01-27 | 2001-08-07 | Dell Usa, L.P. | Peripheral device mounting apparatus |
US6064568A (en) * | 1998-01-27 | 2000-05-16 | Dell Usa, L.P. | Computer system with peripheral device carrier |
US6172880B1 (en) | 1998-07-31 | 2001-01-09 | Hubbell Incorporated | Faceplate for an electronic circuit card for reducing EMI emissions between circuit cards inserted in a circuit card housing |
US6629855B1 (en) * | 1999-07-01 | 2003-10-07 | Silicon Graphics, Inc. | Memory system including guides that receive memory modules |
US6452114B1 (en) | 1999-09-17 | 2002-09-17 | Hubbell Incorporated | Plug-in circuit board with reduced insertion force |
US6607308B2 (en) * | 2001-02-12 | 2003-08-19 | E20 Communications, Inc. | Fiber-optic modules with shielded housing/covers having mixed finger types |
US6659655B2 (en) | 2001-02-12 | 2003-12-09 | E20 Communications, Inc. | Fiber-optic modules with housing/shielding |
US6796715B2 (en) * | 2001-04-14 | 2004-09-28 | E20 Communications, Inc. | Fiber optic modules with pull-action de-latching mechanisms |
US6692159B2 (en) | 2001-04-14 | 2004-02-17 | E20 Communications, Inc. | De-latching mechanisms for fiber optic modules |
US6851867B2 (en) * | 2001-04-14 | 2005-02-08 | Jds Uniphase Corporation | Cam-follower release mechanism for fiber optic modules with side delatching mechanisms |
GB2381953B (en) * | 2001-11-08 | 2004-04-28 | Sun Microsystems Inc | Rack-mountable systems |
US6680850B2 (en) * | 2002-06-10 | 2004-01-20 | Sun Microsystems, Inc. | Electronics assembly |
US7118281B2 (en) * | 2002-08-09 | 2006-10-10 | Jds Uniphase Corporation | Retention and release mechanisms for fiber optic modules |
DE10306145A1 (en) * | 2003-02-14 | 2004-08-26 | Robert Bosch Gmbh | Direct start method for an internal combustion engine (ICE) injects fuel directly into the ICE's combustion chambers filled with air |
US20080011510A1 (en) * | 2006-07-12 | 2008-01-17 | General Electric Company | Hybrid faceplate having reduced EMI emissions |
US11596059B2 (en) | 2019-01-18 | 2023-02-28 | Samsung Sdi Co., Ltd. | Circuit carrier for a battery system and battery system |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3108788A1 (en) * | 1981-03-07 | 1982-09-16 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | RACK INSERT FOR DEVICE TECHNOLOGY DEVICES |
US4384165A (en) * | 1981-09-14 | 1983-05-17 | Motorola, Inc. | Radio frequency shield with force multiplier interconnection fingers for an electromagnetic gasket |
FR2571922B1 (en) * | 1984-10-17 | 1986-10-31 | Cit Alcatel | CHASSIS SEALED WITH ELECTROMAGNETIC DISTURBANCES AND ELECTROMAGNETIC JOINT |
DE3540262C2 (en) * | 1985-03-29 | 1994-01-05 | Licentia Gmbh | System for inserting and removing modules that can be inserted into subracks |
US4631641A (en) * | 1985-07-18 | 1986-12-23 | Northern Telecom Limited | Electronic apparatus with electro-magnetic interference screening |
JPS62150901A (en) * | 1985-12-24 | 1987-07-04 | Murata Mfg Co Ltd | Cover fitting structure for outer case of dielectric coaxial resonator |
US4780570A (en) * | 1987-03-30 | 1988-10-25 | Unisys Corporation | EMI/RFI shielding for electronic assemblies |
US4872212A (en) * | 1987-05-15 | 1989-10-03 | Eip Microwave, Inc. | Microwave main frame |
US4762966A (en) * | 1987-06-26 | 1988-08-09 | Rockwell International Corporation | Electromagnetic signal interference shielding gasket apparatus |
US4758928A (en) * | 1987-07-27 | 1988-07-19 | Motorola, Inc. | Mechanical interlock arrangement for preventing misinstallation of PC boards in an associated mainframe chassis |
US4821145A (en) * | 1987-11-17 | 1989-04-11 | International Business Machines Corporation | Pluggable assembly for printed circuit cards |
-
1989
- 1989-05-16 US US07/352,795 patent/US4991062A/en not_active Expired - Lifetime
-
1990
- 1990-02-06 CA CA002009431A patent/CA2009431C/en not_active Expired - Fee Related
- 1990-05-04 DE DE69012648T patent/DE69012648T2/en not_active Expired - Fee Related
- 1990-05-04 ES ES90304895T patent/ES2060036T3/en not_active Expired - Lifetime
- 1990-05-04 EP EP90304895A patent/EP0398565B1/en not_active Expired - Lifetime
- 1990-05-15 AU AU55062/90A patent/AU612078B2/en not_active Ceased
- 1990-05-16 JP JP2124312A patent/JPH0311700A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0398565B1 (en) | 1994-09-21 |
CA2009431C (en) | 1995-08-15 |
EP0398565A3 (en) | 1991-07-03 |
DE69012648D1 (en) | 1994-10-27 |
EP0398565A2 (en) | 1990-11-22 |
AU612078B2 (en) | 1991-06-27 |
DE69012648T2 (en) | 1995-03-02 |
US4991062A (en) | 1991-02-05 |
JPH0311700A (en) | 1991-01-18 |
AU5506290A (en) | 1990-11-29 |
ES2060036T3 (en) | 1994-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |