EP0649187B1 - Article moulé avec contact électrique - Google Patents

Article moulé avec contact électrique Download PDF

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Publication number
EP0649187B1
EP0649187B1 EP94115755A EP94115755A EP0649187B1 EP 0649187 B1 EP0649187 B1 EP 0649187B1 EP 94115755 A EP94115755 A EP 94115755A EP 94115755 A EP94115755 A EP 94115755A EP 0649187 B1 EP0649187 B1 EP 0649187B1
Authority
EP
European Patent Office
Prior art keywords
molding
metal
prongs
metal covering
cornered
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.)
Expired - Lifetime
Application number
EP94115755A
Other languages
German (de)
English (en)
Other versions
EP0649187A1 (fr
Inventor
Bernhard Dr. Pfeiffer
Detlef Dr. Skaletz
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.)
Ticona GmbH
Original Assignee
Ticona GmbH
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 Ticona GmbH filed Critical Ticona GmbH
Publication of EP0649187A1 publication Critical patent/EP0649187A1/fr
Application granted granted Critical
Publication of EP0649187B1 publication Critical patent/EP0649187B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys

Definitions

  • the invention relates to a molded body made of a metal fiber reinforced Thermoplastic material that has at least one electrical contact. (e.g. grounding).
  • Thermoplastic materials that are filled with metal fibers are used, among other things, for heating elements (surface heating conductors), shielding housings and antistatic components.
  • the conductive metal fibers do not reach the surface directly.
  • the less conductive layer that forms on the surface and is depleted of metal fibers makes it difficult to attach electrical contacts. This problem does not occur on surfaces created by sawing.
  • the electrical contacts are therefore made by drilling the moldings and then pressing in metal bushings or metal pins or by screwing in self-tapping metal screws.
  • a molded body according to claim 1 has now been found. Drilling beforehand is not necessary.
  • the prongs preferably form isosceles triangles. If the bodies made of thermoplastic material are in the form of a plate, the metal coating should preferably be clipped at two opposite locations on the plate. The prongs are preferably arranged offset in the 2 opposite legs of the clip. If the shaped body is cylindrical, the metal coating can have the shape of a pipe clamp which encloses the circumference of the cylinder.
  • the moldings to be provided with contacts can be, for example, housing parts and other injection molded parts, such as handles, wheels or buttons. The electrical contacts make it possible to heat these parts electrically.
  • Figure 1 shows a one-piece clip (1) with prefabricated bending edges (2) and staggered triangular prongs (3) which drill through the less conductive (outer) layers into the interior of a plate (6) when the metal clip is pressed together.
  • the distance d corresponds to the thickness of the plate (6) to which the metal clip is to be applied.
  • Figure 2 shows the section through a plate-shaped body (6) of thickness d on the edge of which the metal clip (1) is fastened with the prongs 3 along the section line II-II of Figure 1.
  • Figure 3 shows a metal clip (4) in the form of a hose clamp with triangular prongs (3) and a tensioning device (5). When (5) is closed, the prongs 3 drill into the surface of a cylindrical molded body made of thermoplastic material (not shown).
  • the tines can be replaced very advantageously because of inexpensive metal shavings are sprinkled on the surface at the contact point, and like the prongs when closing the metal clamp or pipe clamp Penetrate the surface.
  • the metal chips are preferably made of brass or Stainless steel. Their dimensions should be so large that the non-conductive Surface of the molded body is penetrated. Preferably 1 to 3 mm large metal shavings sprinkled on the molded body and pressed. A Warming the surface makes it easier for the teeth to penetrate or chips.
  • the content of metal fibers in the thermoplastic material is preferably less than 20% by weight, in particular 5 to 10% by weight.
  • the molded body can be reinforced with glass fiber to increase the mechanical strength. Adding carbon black can slightly increase the electrical conductivity.
  • Steel fibers, in particular stainless steel fibers, are preferably used as metal fibers.
  • the metal fibers preferably have a length of 1 to 20 mm and a thickness of 5 to 15 ⁇ m.
  • the thermoplastic material is preferably selected from the group of amorphous thermoplastics, such as polycarbonate and acrylonitrile / butadiene / styrene copolymers, PC / ABS blends or partially crystalline thermoplastics such as polypropylene, polyamide 66, polybutylene terephthalate or polyphenylene sulfide.
  • amorphous thermoplastics such as polycarbonate and acrylonitrile / butadiene / styrene copolymers, PC / ABS blends or partially crystalline thermoplastics such as polypropylene, polyamide 66, polybutylene terephthalate or polyphenylene sulfide.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Switches With Compound Operations (AREA)
  • Moulding By Coating Moulds (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Claims (7)

  1. Article moulé en matériau thermoplastique renforcé par des fibres métalliques, doté d'au moins un contact électrique, caractérisé en ce que les contacts sont constitués d'un revêtement métallique, qui est lié à l'article moulé par l'intermédiaire de pointes de forme triangulaire (3), les pointes (3) pénétrant la couche moins conductrice sur la surface de l'article moulé.
  2. Article moulé suivant la revendication 1, caractérisé en ce que les pointes (3) présentent la forme de triangles isocèles.
  3. Article moulé suivant la revendication 1, caractérisé en ce que le revêtement métallique est lié à l'article moulé par l'intermédiaire d'alésures métalliques qui traversent la surface, au lieu de pointes de forme triangulaire (3).
  4. Article moulé suivant l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il présente la forme d'une plaque et en ce que le revêtement métallique est agrafé aux deux côtés de la plaque.
  5. Article moulé suivant la revendication 4, caractérisé en ce que les pointes de forme triangulaire (3) du revêtement métallique sont disposées de manière décalée sur les deux côtés de l'article moulé en forme de plaque (6).
  6. Article moulé suivant les revendications 1 à 3, caractérisé en ce que l'article moulé est de forme cylindrique et en ce que le revêtement métallique présente la forme d'un collier pour tuyaux.
  7. Article moulé suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que la traversée des pointes (3) ou des alésures métalliques est facilitée en chauffant la surface ou en les introduisant dans la surface encore chaude du fait du traitement.
EP94115755A 1993-10-13 1994-10-06 Article moulé avec contact électrique Expired - Lifetime EP0649187B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9315490U DE9315490U1 (de) 1993-10-13 1993-10-13 Formkörper mit elektrischem Kontakt
DE9315490U 1993-10-13

Publications (2)

Publication Number Publication Date
EP0649187A1 EP0649187A1 (fr) 1995-04-19
EP0649187B1 true EP0649187B1 (fr) 1999-01-07

Family

ID=6899275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94115755A Expired - Lifetime EP0649187B1 (fr) 1993-10-13 1994-10-06 Article moulé avec contact électrique

Country Status (4)

Country Link
US (1) US5692922A (fr)
EP (1) EP0649187B1 (fr)
JP (1) JPH07164574A (fr)
DE (2) DE9315490U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69619251T2 (de) * 1995-09-04 2002-10-02 Nakasu Denki K.K., Seki Teil und instrument um konduktivität bei einer elektrischen verbindung zu erreichen
US20150053737A1 (en) 2013-08-23 2015-02-26 Ethicon Endo-Surgery, Inc. End effector detection systems for surgical instruments

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665548A1 (de) * 1951-01-28 1971-03-25 Siemens Ag Klemmverbindung fuer den elektrischen Anschluss eines Kabelschirmes
US3305623A (en) * 1964-10-19 1967-02-21 Metex Corp Shielded window construction
US3504101A (en) * 1968-09-30 1970-03-31 Amp Inc Electric connector for aluminum foil
US3715705A (en) * 1971-03-29 1973-02-06 Thomas & Betts Corp Multicompartment connector
BE794320A (fr) * 1972-01-19 1973-07-19 Thomas & Betts Corp Moyens de contact a percage d'isolant et d'oxyde
US3818415A (en) * 1973-02-16 1974-06-18 Amp Inc Electrical connections to conductors having thin film insulation
GB1437721A (en) * 1973-06-21 1976-06-03 Cannon Electric Great Britain Electrical termination arrangements for flat cables
US3846577A (en) * 1973-07-10 1974-11-05 Thomas & Betts Corp Electrical splice
DE2911575C2 (de) * 1979-03-23 1982-11-04 Eternit Ag, 1000 Berlin Zugfeste Rohrkupplung
US4248493A (en) * 1979-05-25 1981-02-03 Thomas & Betts Corporation Self-locking clamp member
US4558915A (en) * 1980-02-21 1985-12-17 Thomas & Betts Corporation Electrical connector
US4412255A (en) * 1981-02-23 1983-10-25 Optical Coating Laboratory, Inc. Transparent electromagnetic shield and method of manufacturing
JPS5957866U (ja) * 1982-10-08 1984-04-16 松下電工株式会社 フラツトケ−ブルの接続部の構造
US4820170A (en) * 1984-12-20 1989-04-11 Amp Incorporated Layered elastomeric connector and process for its manufacture
FR2638026B1 (fr) * 1988-10-18 1990-12-21 Mecatraction Jonction d'un cable a une electrode de panneau lamine, notamment panneau chauffant, par cosse agrafee, cosse pour une telle jonction et barrette constituee d'une multiplicite de cosses liees
JPH0291360U (fr) * 1988-12-29 1990-07-19
US5174766A (en) * 1990-05-11 1992-12-29 Canon Kabushiki Kaisha Electrical connecting member and electric circuit member
US5140405A (en) * 1990-08-30 1992-08-18 Micron Technology, Inc. Semiconductor assembly utilizing elastomeric single axis conductive interconnect
US5101553A (en) * 1991-04-29 1992-04-07 Microelectronics And Computer Technology Corporation Method of making a metal-on-elastomer pressure contact connector
US5211567A (en) * 1991-07-02 1993-05-18 Cray Research, Inc. Metallized connector block

Also Published As

Publication number Publication date
US5692922A (en) 1997-12-02
JPH07164574A (ja) 1995-06-27
EP0649187A1 (fr) 1995-04-19
DE59407592D1 (de) 1999-02-18
DE9315490U1 (de) 1994-11-10

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