DE3838901A1 - Plastic enclosure and process for its production - Google Patents

Plastic enclosure and process for its production

Info

Publication number
DE3838901A1
DE3838901A1 DE19883838901 DE3838901A DE3838901A1 DE 3838901 A1 DE3838901 A1 DE 3838901A1 DE 19883838901 DE19883838901 DE 19883838901 DE 3838901 A DE3838901 A DE 3838901A DE 3838901 A1 DE3838901 A1 DE 3838901A1
Authority
DE
Germany
Prior art keywords
plastic
metal
housing
closing
metal liner
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
Application number
DE19883838901
Other languages
German (de)
Other versions
DE3838901C2 (en
Inventor
Hans Dipl Ing Tillenburg
Hubertus Dipl Ing Kropff
Norbert Jenniges
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TILLENBURG, JOHANNES, DIPL.-KFM. DIPL.-ING., 45359
Original Assignee
Pag Presswerk 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
Application filed by Pag Presswerk AG filed Critical Pag Presswerk AG
Priority to DE19883838901 priority Critical patent/DE3838901A1/en
Publication of DE3838901A1 publication Critical patent/DE3838901A1/en
Application granted granted Critical
Publication of DE3838901C2 publication Critical patent/DE3838901C2/de
Granted legal-status Critical Current

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
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14795—Porous or permeable material, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0011—Electromagnetic wave shielding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The invention relates to a plastic enclosure for the electronics industry, with high strength and good electromagnetic shielding. It comprises an open-cell metal gauze which is formed during the closing of the mould and is moulded with plastic by a casting or injection process known per se in such a way that it is penetrated and enclosed on all sides by the said plastic.

Description

Die Erfindung betrifft ein Kunststoffgehäuse für die Elektronikindustrie mit hoher Festigkeit und guter elektromagnetischer Abschirmung. Gehäuse für die Elektronikindustrie werden häufig aus Metall gefertigt und anschließend mit einer dekorgebenden Kunststoffschicht versehen. Bei einfachen Gehäuseformen ist dies sicher sinnvoll, aber bei komplizierterer Formgebung wird die leichtere Verformbarkeit von Kunststoff-Formmassen genutzt. Um eine elektromagnetische Abschirmung zu erhalten müssen die Gehäuse auf ihrer Oberfläche durch Galvanisieren, Flammenspritzen, Bedampfen oder eine Folienkaschierung mit einer Metallschicht versehen werden. Diese Schichten sind im allgemeinen recht dünn und haben daher nur eine vergleichbar geringe elektrische Leitfähigkeit. Die Gehäuse haben außerdem gegenüber den Metallgehäusen eine wesentlich geringere Festigkeit, so daß sie häufig zusätzlich verstärkt werden müssen. Außerdem ist die an der Oberfläche freiliegende Metallschicht empfindlich gegen Verletzungen und Ablösen.The invention relates to a plastic housing for the Electronics industry with high strength and good electromagnetic shielding. Housing for the Electronics industry are often made of metal and then with a decorative one Provide plastic layer. With simple This certainly makes sense for housing shapes, but for the more complicated shape becomes the easier one Deformability of plastic molding compounds used. Around to have electromagnetic shielding the housings on their surface by electroplating, Flame spraying, steaming or foil lamination be provided with a metal layer. These Layers are generally quite thin and have therefore only a comparably low electrical Conductivity. The housings also face each other the metal housings a much smaller one Strength, so that it is often additionally reinforced Need to become. It's also on the surface  exposed metal layer sensitive to Injuries and detachment.

Aufgabe der Erfindung ist es ein abschirmendes Kunststoffgehäuse mit verbesserter elektrischer Leitfähigkeit und Festigkeit zu entwickeln und ein Verfahren zu seiner Herstellung.The object of the invention is a shielding Plastic housing with improved electrical To develop conductivity and strength and a Process for its production.

Diese Aufgabe wird erfindungsgemäß durch ein Gehäuse gelöst, das aus einem Metallinlett 2 besteht, das allseitig von Kunststoff 1 umschlossen und durchdrungen ist.This object is achieved according to the invention by a housing which consists of a metal insert 2 which is surrounded and penetrated by plastic 1 on all sides.

Das Metallinlett muß durch seinen Aufbau in der Lage sein, dem Ausdehnungsverhalten des Kunststoffs zu folgen. Geeignet hierfür sind Lochbleche, Streckmetall und Metallgewebe, Die Dimensionierung richtet sich nach den gestellten Anforderungen bezüglich der Festigkeit, der Abschirmung und Leitfähigkeit des Gehäuses. Das Metallinlett kann mittig in dem Kunststoff eingebettet sein, bevorzugt ist es aber mehr zur Innenseite des Gehäuses verschoben.The metal inlay must be able to by its structure be the expansion behavior of the plastic consequences. Perforated sheets, expanded metal are suitable for this and metal mesh, the dimensioning is correct according to the requirements regarding the Strength, shielding and conductivity of the Housing. The metal inlay can be centered in the Plastic embedded, but it is preferred shifted more to the inside of the case.

Die Zeichnung zeigt den Schnitt durch die Ecke eines erfindungsgemäßen Gehäuses. Das Gehäuse aus Kunststoff 1 ist etwa mittig mit einem Metallinlett 2 aus Streckmetall versehen, das von dem Kunststoff 1 durchdrungen und allseitig umschlossen wird.The drawing shows the section through the corner of a housing according to the invention. The housing made of plastic 1 is provided approximately in the middle with a metal insert 2 made of expanded metal, which is penetrated by the plastic 1 and enclosed on all sides.

Das Gehäuse kann so hergestellt werden, daß zunächst das in einem gesonderten Vorgang dem Gehäuse entsprechend geformte Metallinlett in das formgebende Werkzeug eingelegt und nach dem Schließen des Werkzeugs durch ein Gieß-, Spritzgieß-, Spritzpreß-, Preß- oder Schäumverfahren mit Kunststoff eingeformt wird. Nach einer bevorzugten Ausführungsform wird das Metallinlett jedoch durch den Schließvorgang des Werkzeugs geformt, so daß das Gehäuse in einem einzigen Formgebungsprozeß hergestellt wird.The housing can be made so that initially the housing in a separate process appropriately shaped metal insert in the shaping  Tool inserted and after closing the Tool by a casting, injection molding, injection molding, Pressing or foaming process molded in with plastic becomes. According to a preferred embodiment, the Metal inlay, however, by the closing process of the Molded so that the housing in one single molding process is produced.

Claims (6)

1. Kunststoffgehäuse mit elektromagnetischer Abschirmung, dadurch gekennzeichnet, daß das Gehäuse aus einem Metallinlett (2) besteht, das allseitig von Kunststoff (1) umschlossen und durchdrungen ist.1. Plastic housing with electromagnetic shielding, characterized in that the housing consists of a metal liner ( 2 ) which is enclosed and penetrated on all sides by plastic ( 1 ). 2. Kunststoffgehäuse nach Anspruch 1, dadurch gekennzeichnet, daß das Metallinlett (2) ein Lochblech ist.2. Plastic housing according to claim 1, characterized in that the metal liner ( 2 ) is a perforated plate. 3. Kunststoffgehäuse nach Anspruch 1, dadurch gekennzeichnet, daß das Metallinlett (2) ein Streckmetall ist.3. Plastic housing according to claim 1, characterized in that the metal liner ( 2 ) is an expanded metal. 4. Kunststoffgehäuse nach Anspruch 1, dadurch gekennzeichnet, daß das Metallinlett (2) ein Metallgewebe ist.4. Plastic housing according to claim 1, characterized in that the metal liner ( 2 ) is a metal mesh. 5. Verfahren zur Herstellung eines Metallgehäuses nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Metallinlett (2) dem Gehäuse entsprechend geformt und nach dem Schließen des formgebenden Werkzeugs durch ein an sich bekanntes Spritz- oder Gießverfahren mit Kunststoff (1) eingeformt wird.5. A method for producing a metal housing according to one of claims 1 to 4, characterized in that the metal inlay ( 2 ) is shaped according to the housing and molded in after the closing of the shaping tool by a known injection or casting process with plastic ( 1 ) becomes. 6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß das Metallinlett (2) durch den Schließvorgang des Werkzeugs geformt wird.6. The method according to claim 5, characterized in that the metal liner ( 2 ) is formed by the closing process of the tool.
DE19883838901 1988-11-17 1988-11-17 Plastic enclosure and process for its production Granted DE3838901A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883838901 DE3838901A1 (en) 1988-11-17 1988-11-17 Plastic enclosure and process for its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883838901 DE3838901A1 (en) 1988-11-17 1988-11-17 Plastic enclosure and process for its production

Publications (2)

Publication Number Publication Date
DE3838901A1 true DE3838901A1 (en) 1990-05-23
DE3838901C2 DE3838901C2 (en) 1990-09-27

Family

ID=6367347

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883838901 Granted DE3838901A1 (en) 1988-11-17 1988-11-17 Plastic enclosure and process for its production

Country Status (1)

Country Link
DE (1) DE3838901A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037119A1 (en) * 1990-11-22 1992-05-27 Messerschmitt Boelkow Blohm ARRANGEMENT FOR SEALING A DISCONNECTING OR CONNECTING JOINT BETWEEN TWO COMPONENTS, ESSENTIAL PLASTIC
DE4215427A1 (en) * 1991-05-10 1993-01-21 Siebolt Hettinga Injection moulding of stiffened plastic component - comprises inserting member between two mould halves, injecting plastic around member, partly cooling and hardening
EP0633585A1 (en) * 1993-07-08 1995-01-11 Philips Patentverwaltung GmbH Housing for electric communication apparatus
DE19505762A1 (en) * 1994-02-21 1995-08-24 Fujitsu Ltd Moulded plastics component
US5473111A (en) * 1992-10-07 1995-12-05 Mitsubishi Denki Kabushiki Kaisha Shielded enclosure for housing electronic components and manufacturing method thereof
DE19512266A1 (en) * 1994-09-23 1996-03-28 Rainer Jacob Facility for protection against manipulation e.g. for motor vehicle electronic circuits
DE19540339A1 (en) * 1995-10-28 1997-04-30 Kloeckner Moeller Gmbh Outlet and device box of an energy distribution system
DE19600230A1 (en) * 1996-01-05 1997-07-17 Eichel Ruediger Albert Absorption wall for electromagnetic radiation or electro-smog e.g. for HV lines and RF transmitters for radio, TV or mobile phones
DE19930000A1 (en) * 1999-06-30 2001-01-04 Bayerische Motoren Werke Ag Fibre reinforced molding or prepreg for use in car bodywork, comprises thermoplastic matrix containing reinforcing textile layers woven from metal wire and other layers woven from non-metallic fibre
DE10064540A1 (en) * 2000-12-22 2002-07-04 Mauser Office Gmbh Holder for mobile telephone in office furniture has screen layer on inner side of cover panel to protect from electromagnetic fields
DE102012109447A1 (en) * 2012-10-04 2014-04-10 Elringklinger Ag Housing component i.e. cover, has shield provided at spatial profile of carrying wall before connection of carrying wall extending shield element that is formed on carrying wall, and shield element comprising screen segment
DE102018132886B3 (en) * 2018-12-19 2019-12-12 d&b audiotechnik Verwaltungs GmbH Method for producing a plastic-coated loudspeaker housing and plastic-coated loudspeaker housing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608938A1 (en) * 1986-03-18 1987-09-24 Julius Dipl Ing Giliard Composite material of synthetic resin, in particular glass fibre-reinforced synthetic resin, and metal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608938A1 (en) * 1986-03-18 1987-09-24 Julius Dipl Ing Giliard Composite material of synthetic resin, in particular glass fibre-reinforced synthetic resin, and metal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
G. Taubitz, "Kunststoffumspritzte Metallteile für Elektrotechnik und Elektronik", Elektroanzeiger 1985, Nr. 4, S. 50-54 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037119A1 (en) * 1990-11-22 1992-05-27 Messerschmitt Boelkow Blohm ARRANGEMENT FOR SEALING A DISCONNECTING OR CONNECTING JOINT BETWEEN TWO COMPONENTS, ESSENTIAL PLASTIC
DE4215427A1 (en) * 1991-05-10 1993-01-21 Siebolt Hettinga Injection moulding of stiffened plastic component - comprises inserting member between two mould halves, injecting plastic around member, partly cooling and hardening
US5473111A (en) * 1992-10-07 1995-12-05 Mitsubishi Denki Kabushiki Kaisha Shielded enclosure for housing electronic components and manufacturing method thereof
EP0633585A1 (en) * 1993-07-08 1995-01-11 Philips Patentverwaltung GmbH Housing for electric communication apparatus
US5792482A (en) * 1994-02-21 1998-08-11 Fujitsu Limited Apparatus for producing a plastic molded product
US5755915A (en) * 1994-02-21 1998-05-26 Fujitsu Limited Method for producing a shielding molded plastic part
DE19505762A1 (en) * 1994-02-21 1995-08-24 Fujitsu Ltd Moulded plastics component
DE19512266A1 (en) * 1994-09-23 1996-03-28 Rainer Jacob Facility for protection against manipulation e.g. for motor vehicle electronic circuits
DE19512266C2 (en) * 1994-09-23 1998-11-19 Rainer Jacob Anti-theft system for vehicles
DE19540339A1 (en) * 1995-10-28 1997-04-30 Kloeckner Moeller Gmbh Outlet and device box of an energy distribution system
DE19600230A1 (en) * 1996-01-05 1997-07-17 Eichel Ruediger Albert Absorption wall for electromagnetic radiation or electro-smog e.g. for HV lines and RF transmitters for radio, TV or mobile phones
DE19930000A1 (en) * 1999-06-30 2001-01-04 Bayerische Motoren Werke Ag Fibre reinforced molding or prepreg for use in car bodywork, comprises thermoplastic matrix containing reinforcing textile layers woven from metal wire and other layers woven from non-metallic fibre
DE10064540A1 (en) * 2000-12-22 2002-07-04 Mauser Office Gmbh Holder for mobile telephone in office furniture has screen layer on inner side of cover panel to protect from electromagnetic fields
DE102012109447A1 (en) * 2012-10-04 2014-04-10 Elringklinger Ag Housing component i.e. cover, has shield provided at spatial profile of carrying wall before connection of carrying wall extending shield element that is formed on carrying wall, and shield element comprising screen segment
DE102018132886B3 (en) * 2018-12-19 2019-12-12 d&b audiotechnik Verwaltungs GmbH Method for producing a plastic-coated loudspeaker housing and plastic-coated loudspeaker housing

Also Published As

Publication number Publication date
DE3838901C2 (en) 1990-09-27

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: TILLENBURG, JOHANNES, DIPL.-KFM. DIPL.-ING., 45359

8339 Ceased/non-payment of the annual fee