NO873163L - CARD CARD FOR TELETECHNICS. - Google Patents

CARD CARD FOR TELETECHNICS.

Info

Publication number
NO873163L
NO873163L NO873163A NO873163A NO873163L NO 873163 L NO873163 L NO 873163L NO 873163 A NO873163 A NO 873163A NO 873163 A NO873163 A NO 873163A NO 873163 L NO873163 L NO 873163L
Authority
NO
Norway
Prior art keywords
circuit board
components
pins
card
shielding
Prior art date
Application number
NO873163A
Other languages
Norwegian (no)
Other versions
NO873163D0 (en
Inventor
Heiner Thomfohrde
Original Assignee
Siemens Ag
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
Priority claimed from DE8620678U external-priority patent/DE8620678U1/de
Priority claimed from DE19868628884 external-priority patent/DE8628884U1/de
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of NO873163D0 publication Critical patent/NO873163D0/en
Publication of NO873163L publication Critical patent/NO873163L/en

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007Casings
    • H05K9/002Casings with localised screening
    • H05K9/0022Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0024Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
    • H05K9/0032Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Color Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Description

Oppfinnelsen angår et kretskort for teleteknikk med pluggbar skjerming for de derpå forekommende komponenter, idet denne består av en plateramme som omgir disse komponenter og er forsynt med et pluggdeksel, og som er loddet til kretskortet ved hjelp av loddestifter i jordingsstrømløpet. The invention relates to a circuit board for telecommunications with pluggable shielding for the components located thereon, as this consists of a plate frame which surrounds these components and is provided with a plug cover, and which is soldered to the circuit board by means of soldering pins in the earthing current path.

Ved slike kretskort har man hyppig det krav at også den With such circuit boards, there is often a requirement that the

andre side av kretskortet med strømløpene og eventuelt ytterligere komponenter skal forsynes med en skjerming. the other side of the circuit board with the current paths and possibly additional components must be provided with a shield.

Hensikten med oppfinnelsen er for dette formål å angi en enkel, praktisk utførbar løsning. For this purpose, the purpose of the invention is to provide a simple, practically feasible solution.

Ved en kretskortanordning av den innledningsvis nevnte art oppnås dette i henhold til oppfinnelsen ved at loddestiftene på den andre side av kretskortet er utført slik at de i et større antall rager noe ut og over kretskortplanet samt over de derpå forekommende komponenter, som såkalte SMD-komponenter, og at det på disse stifter er tilplugget en ytterligere skjermingsplate. In the case of a circuit board device of the type mentioned at the outset, this is achieved according to the invention by the soldering pins on the other side of the circuit board being designed so that a larger number of them protrude somewhat and above the circuit board plane as well as over the components occurring thereon, such as so-called SMD components , and that a further shielding plate is plugged onto these pins.

I det følgende skal oppfinnelsen samt dens fordeler forklares nærmere i tilknytning til det på tegningen fremstilte ut-førelseseksempel. Fig. 1 viser derved en kretskortanordning med enkeltskjerming av komponentene. In what follows, the invention and its advantages will be explained in more detail in connection with the embodiment shown in the drawing. Fig. 1 thereby shows a circuit board arrangement with individual shielding of the components.

Fig. 2 viser undersiden av kretskortet. Fig. 2 shows the underside of the circuit board.

Spesielt ved større kretskort for teleteknikk og radioteknikk er enkeltskjerminger for komponenter i henhold til fig. 1 anordnet på en side av den såkalte komponentside 7. Derved er normalt et skjermingshette utført som en ramme og forsynt med loddestifter, påloddet kretskortet. For å lette adgangen til komponentene er det anordnet pluggbare deksler eller hetter 6 som med en falset kant 4 plugges på disse rammer 5. Er en skjerming, som det ved slike montasjer hyppig kreves, også nødvendig på undersiden 8, normalt den såkalte strøm-løpside, så er der likeledes skjermingsplater nødvendig. Spesielt er dette tilfelle når det som for tiden hyppig er nødvendig at det også på denne side, hvor vanligvis strøm-ningslodningen foretas, f.eks. skal forekomme såkalte SMD-komponenter (surface-mounted-devices). Especially in the case of larger circuit boards for telecommunications and radio engineering, individual shields for components according to fig. 1 arranged on one side of the so-called component side 7. Thereby, a shielding cap is normally designed as a frame and provided with soldering pins, soldered onto the circuit board. In order to facilitate access to the components, pluggable covers or hoods 6 are arranged which, with a folded edge 4, are plugged onto these frames 5. Is shielding, which is frequently required in such assemblies, also necessary on the underside 8, normally the so-called flow side , then shielding plates are also required. In particular, this is the case when it is currently frequently necessary that also on this side, where current soldering is usually carried out, e.g. there must be so-called SMD components (surface-mounted-devices).

For å feste denne skjerming er loddestiftene 2 på skjermrammen 5 på montasjeoversiden i stort antall og i større høyde enn det som normalt er nødvendig, stukket gjennom kretskortet og loddet til jordingsstrømløpene. Ved det store antall og høyden på stiftene er det mulig på disse stiftrekker i tillegg å plugge skjermingsplatedeksler 3, som normalt likeledes er forsynt med falsede kanter 4 for bedre fiksering og sentrer-ing. Det er derved viktig at stifthøyden og høyden til disse falsede kanter 4 er dimensjonert slik at de mellom jordings-stiftene gjennomgående strømførende strømløp, som ikke er isolert, og tilkoblingene for SMD-komponentene ikke berøres. Det er på denne måte uten ekstra kostnad mulig å beskytte strømløpene på viringssiden 8 av komponentmontasjen samt de derpå forekommende komponeter mot inn- og utstråling av elektriske felt ved lett avtagbare skjermingsdeksler 3. In order to attach this shielding, the solder pins 2 on the shield frame 5 on the mounting top side in large numbers and at a greater height than is normally necessary, are inserted through the circuit board and soldered to the earthing currents. Due to the large number and height of the pins, it is also possible to plug shielding plate covers 3, which are normally also provided with folded edges 4 for better fixation and centering, on these pin pullers. It is therefore important that the pin height and the height of these folded edges 4 are dimensioned so that the current-carrying currents running between the grounding pins, which are not insulated, and the connections for the SMD components are not touched. In this way, it is possible, at no extra cost, to protect the current flows on the wiring side 8 of the component assembly as well as the components located there against the ingress and emission of electric fields by means of easily removable shielding covers 3.

Claims (2)

1. Kretskort for teleteknikk med pluggbar skjerming for de derpå forekommende komponenter, idet denne består av en plateramme som omgir disse komponenter, og som er forsynt med et pluggdeksel og loddet til kretskortet ved hjelp av loddestifter i jordingsstrømløpet,karakterisertved at loddestiftene (2) på den andre side av kretskortet (1) i større antall er utført noe utragende over kretskortplanet samt de derpå forekommende komponenter, slik som såkalte SMD-komponenter (9), og at det på disse stifter (2) er påplugget en ytterligere skjermingsplate (3).1. Circuit board for telecommunications with pluggable shielding for the components on it, as this consists of a plate frame that surrounds these components, and which is provided with a plug cover and soldered to the circuit board using soldering pins in the grounding current path, characterized in that the soldering pins (2) on the other side of the circuit board (1) in larger numbers is made somewhat protruding above the circuit board plane as well as the components occurring on it, such as so-called SMD components (9), and that an additional shielding plate (3) is plugged onto these pins (2) . 2. Kretskort i henhold til krav 1,karakterisert vedat høyden på stiftene er slik dimensjonert at den falsede rand (4) på skjermingsplaten (3) ikke berører de strømførende strømløp på kretskortet (1) eller de eventuelt derpå forekommende komponenter (9).2. Circuit board according to claim 1, characterized in that the height of the pins is dimensioned in such a way that the folded edge (4) on the shielding plate (3) does not touch the current-carrying currents on the circuit board (1) or the possibly occurring components (9).
NO873163A 1986-08-01 1987-07-28 CARD CARD FOR TELETECHNICS. NO873163L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8620678U DE8620678U1 (en) 1986-08-01 1986-08-01
DE19868628884 DE8628884U1 (en) 1986-10-29 1986-10-29

Publications (2)

Publication Number Publication Date
NO873163D0 NO873163D0 (en) 1987-07-28
NO873163L true NO873163L (en) 1988-02-02

Family

ID=25950997

Family Applications (1)

Application Number Title Priority Date Filing Date
NO873163A NO873163L (en) 1986-08-01 1987-07-28 CARD CARD FOR TELETECHNICS.

Country Status (4)

Country Link
EP (1) EP0262332A3 (en)
DK (1) DK385587A (en)
FI (1) FI873337A (en)
NO (1) NO873163L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000286A1 (en) * 1990-01-08 1991-07-11 Bosch Gmbh Robert SHIELDING CONTAINER FOR A AREA OF A PCB
JPH03212006A (en) * 1990-01-17 1991-09-17 Sony Corp Package for high frequency circuit
JP2516314Y2 (en) * 1990-10-15 1996-11-06 日本シイエムケイ株式会社 Electromagnetic wave shield printed wiring board
DE4115153A1 (en) * 1991-05-08 1992-11-12 Lo Kun Nan ASSEMBLED PCB WITH AN ALUMINUM SHIELDING HOUSING
FI109960B (en) * 1991-09-19 2002-10-31 Nokia Corp Electronic device
DE4236593A1 (en) * 1992-10-29 1994-05-05 Siemens Ag Backplane circuit board for a module frame
TW486238U (en) * 1996-08-18 2002-05-01 Helmut Kahl Shielding cap

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927256C3 (en) * 1969-05-29 1981-10-08 Blaupunkt-Werke Gmbh, 3200 Hildesheim Television receiver with a circuit arrangement for keyed gain control

Also Published As

Publication number Publication date
FI873337A (en) 1988-02-02
NO873163D0 (en) 1987-07-28
DK385587A (en) 1988-02-02
EP0262332A2 (en) 1988-04-06
DK385587D0 (en) 1987-07-23
FI873337A0 (en) 1987-07-31
EP0262332A3 (en) 1989-09-20

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