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IT1244945B - Schermo elettromagnetico per circuito elettrico. - Google Patents

Schermo elettromagnetico per circuito elettrico.

Info

Publication number
IT1244945B
IT1244945B ITRM910179A ITRM910179A IT1244945B IT 1244945 B IT1244945 B IT 1244945B IT RM910179 A ITRM910179 A IT RM910179A IT RM910179 A ITRM910179 A IT RM910179A IT 1244945 B IT1244945 B IT 1244945B
Authority
IT
Italy
Prior art keywords
circuit
shield
electric circuit
electromagnetic screen
circuit board
Prior art date
Application number
ITRM910179A
Other languages
English (en)
Inventor
Jeffery Frank Kurgan
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of ITRM910179A0 publication Critical patent/ITRM910179A0/it
Publication of ITRM910179A1 publication Critical patent/ITRM910179A1/it
Application granted granted Critical
Publication of IT1244945B publication Critical patent/IT1244945B/it

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
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
    • H05K9/0032—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids
    • H05K9/0035—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids with retainers mounted beforehand on the PCB, e.g. clips
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/35—Box or housing mounted on substrate or PCB

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Liquid Crystal (AREA)
  • Casings For Electric Apparatus (AREA)
  • Insulated Conductors (AREA)

Abstract

Oggetto dell'invenzione è uno schermo elettromagnetico (10) per assorbire l'energia elettromagnetica generata da un circuito (32) disposto su un pannello circuitale (34). Lo schermo (10) è costituito da un materiale termicamente conduttore per fornire inoltre capacità di dissipazione del calore. Organi a fermagli (16) fissati in modo rilasciabile su una flangia (14, 15) che sporge da una superficie di schermatura (12) formata dallo schermo (10) sono allineati con il piano di base (36) di un pannello circuitale (34). Mantenedo lo schermo (10) in relazione di contrapposizione al pannello circuitale (34), gli organi a fermaglio (16) vengono fatti mantenere la superficie di schermatura (12) in contatto elettrico con il circuito (32).
ITRM910179A 1990-03-30 1991-03-19 Schermo elettromagnetico per circuito elettrico. IT1244945B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/502,365 US5053924A (en) 1990-03-30 1990-03-30 Electromagnetic shield for electrical circuit

Publications (3)

Publication Number Publication Date
ITRM910179A0 ITRM910179A0 (it) 1991-03-19
ITRM910179A1 ITRM910179A1 (it) 1992-09-19
IT1244945B true IT1244945B (it) 1994-09-13

Family

ID=23997482

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM910179A IT1244945B (it) 1990-03-30 1991-03-19 Schermo elettromagnetico per circuito elettrico.

Country Status (14)

Country Link
US (1) US5053924A (it)
JP (1) JP2596217B2 (it)
CN (1) CN1050495C (it)
AU (1) AU631984B2 (it)
BR (1) BR9105657A (it)
CA (1) CA2048649C (it)
DE (1) DE4190697C1 (it)
FR (1) FR2660516B1 (it)
GB (1) GB2249671B (it)
HU (1) HU210445B (it)
IT (1) IT1244945B (it)
MX (1) MX169539B (it)
PL (1) PL166497B1 (it)
WO (1) WO1991015939A1 (it)

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DE29612557U1 (de) * 1996-07-19 1996-09-12 Nokia Mobile Phones Ltd., Salo Abschirmeinrichtung gegen elektromagnetische Strahlung
SE507255C2 (sv) * 1996-08-22 1998-05-04 Ericsson Telefon Ab L M Skärmskydd
DE59700650D1 (de) * 1996-08-23 1999-12-09 Asea Brown Boveri Gehäuse mit einer Belüftungsvorrichtung für ein elektronisches Gerät
EP1111981A1 (de) 1997-03-05 2001-06-27 Bernd Tiburtius Verfahren zur Herstellung eines Abschirmgehäuses
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US6583987B2 (en) * 1999-02-26 2003-06-24 Intel Corporation Electromagnetic interference and heatsinking
US6219239B1 (en) * 1999-05-26 2001-04-17 Hewlett-Packard Company EMI reduction device and assembly
US6278615B1 (en) * 1999-06-30 2001-08-21 International Business Machines Corporation Heatsink grounding spring and shield apparatus
JP3333761B2 (ja) * 1999-09-10 2002-10-15 株式会社ソニー・コンピュータエンタテインメント シールドを備える電子機器、および、シールド部材
US6243265B1 (en) * 1999-10-06 2001-06-05 Intel Corporation Processor EMI shielding
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JP2002094689A (ja) * 2000-06-07 2002-03-29 Sony Computer Entertainment Inc プログラム実行システム、プログラム実行装置、中継装置、および記録媒体
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EP1207734A1 (en) * 2000-11-20 2002-05-22 LK Engineering A/S Method of manufacturing items with bend projections
US7005573B2 (en) 2003-02-13 2006-02-28 Parker-Hannifin Corporation Composite EMI shield
US7326862B2 (en) * 2003-02-13 2008-02-05 Parker-Hannifin Corporation Combination metal and plastic EMI shield
US7310067B1 (en) * 2006-05-23 2007-12-18 Research In Motion Limited Mobile wireless communications device with reduced interfering RF energy into RF metal shield secured on circuit board
US20080002384A1 (en) * 2006-06-30 2008-01-03 Motorola, Inc. Apparatus for providing radio frequency shielding and heat dissipation for electronic components
JP4844883B2 (ja) * 2006-07-20 2011-12-28 日本電気株式会社 電子機器及びプリント基板のｇｎｄ接続方法
US20090002949A1 (en) * 2007-06-29 2009-01-01 Lucent Technologies Inc. Heat transfer for electronic component via an electromagnetic interference (emi) shield having shield deformation
JP2013038243A (ja) * 2011-08-09 2013-02-21 Kyocera Corp シールド構造体及び携帯端末
US9332680B2 (en) * 2013-03-15 2016-05-03 Autoliv Asp, Inc. Electrical gasket and electronic module having electrical gasket
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Also Published As

Publication number Publication date
MX169539B (es) 1993-07-09
PL293012A1 (en) 1992-06-15
GB9122862D0 (en) 1991-12-11
AU7545391A (en) 1991-10-30
DE4190697C1 (de) 1995-09-28
US5053924A (en) 1991-10-01
JPH05501030A (ja) 1993-02-25
GB2249671B (en) 1994-01-05
CN1050495C (zh) 2000-03-15
JP2596217B2 (ja) 1997-04-02
ITRM910179A1 (it) 1992-09-19
FR2660516B1 (fr) 1994-04-29
AU631984B2 (en) 1992-12-10
WO1991015939A1 (en) 1991-10-17
CN1055456A (zh) 1991-10-16
CA2048649A1 (en) 1991-10-01
HU210445B (en) 1995-04-28
ITRM910179A0 (it) 1991-03-19
GB2249671A (en) 1992-05-13
BR9105657A (pt) 1992-05-19
HUT62133A (en) 1993-03-29
FR2660516A1 (fr) 1991-10-04
HU913689D0 (en) 1992-03-30
CA2048649C (en) 1996-04-16
PL166497B1 (pl) 1995-05-31

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950216