EP2378612B1 - Coating of a lead frame with a plastic material with high shrinkage rate - Google Patents

Coating of a lead frame with a plastic material with high shrinkage rate Download PDF

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Publication number
EP2378612B1
EP2378612B1 EP11003036.8A EP11003036A EP2378612B1 EP 2378612 B1 EP2378612 B1 EP 2378612B1 EP 11003036 A EP11003036 A EP 11003036A EP 2378612 B1 EP2378612 B1 EP 2378612B1
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EP
European Patent Office
Prior art keywords
plastic
housing
contact
disposed
line
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EP11003036.8A
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German (de)
French (fr)
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EP2378612A1 (en
Inventor
Jürgen Häfele
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Hirschmann Automotive GmbH
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Hirschmann Automotive GmbH
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Publication of EP2378612A1 publication Critical patent/EP2378612A1/en
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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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/18—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins

Definitions

  • the invention relates to a longitudinally watertight interface between a first room, in which harsh environmental conditions prevail, in particular with moisture, water or the like, and a second, largely dry room, according to the features of the respective preamble of the independent claims.
  • the invention relates to a longitudinally watertight interface between an oil pan and an engine compartment of a vehicle, in particular a passenger car.
  • connector housing to inject from a plastic, wherein the contact partners and / or the at least one stamped grid are encapsulated by the plastic.
  • the end of the electrical line or the plurality of electrical lines with the plastic of the connector housing is encapsulated in order to achieve longitudinal water-tightness in this way.
  • the invention is therefore based on the object to provide an improved longitudinally watertight interface and a method for the production thereof.
  • the housing is formed by a plastic with a high shrinkage rate. This has the advantage that the housing after its production (and possibly even during its production) very tight in the area where it comes to rest on the insulating jacket of the line, there to make an intimate connection, so the required longitudinal water tightness is achieved.
  • the housing is advantageously an injection molded part.
  • This makes it possible to produce the housing reproducibly in large numbers, quickly, easily, inexpensively and with the required accuracy, especially in mass production.
  • the elements of the interface which are to be surrounded by the housing, inserted into a correspondingly shaped tool shape (usually multi-part) and introduced the plastic with high shrinkage rate in the tool, in particular injected under pressure.
  • a correspondingly shaped tool shape usually multi-part
  • the plastic with high shrinkage rate in the tool, in particular injected under pressure.
  • those areas which are to be connected to the plastic of high shrinkage rate also come into contact with this injected plastic.
  • Areas that are not to be surrounded by this plastic, such as the contact partners are so inside the tool or outside of the tool to arrange that prevents them come into contact with the injected plastic.
  • a material pairing is used in which the plastic of the insulating jacket of the conduit is an ETFE plastic (ethylene-tetrafluoroethylene) and the plastic of the housing is a PBT plastic (polybutylene terephthalate).
  • ETFE plastic ethylene-tetrafluoroethylene
  • PBT plastic polybutylene terephthalate
  • the contact partner is disposed at the end of the electrical conductor, an embossment.
  • the end of the electrical conductor is connected to the contact partner at least electrically, but preferably mechanically and electrically.
  • the electrical connection is made for example by soldering, welding, gluing or the like.
  • a mechanical fixing takes place, for example, by crimping, in which the end of the electrical conductor is fixed by crimper blades of a crimp connection.
  • the electrical conductor in the contacting zone may also be considered here to solder the electrical conductor in the contacting zone to the contact partner after or prior to crimping or the like.
  • This prepared as described above contacting region is provided with an embossment, which is beispielswelse as a flat embossing, a stamping, in the form of grooves and / or webs or the like.
  • This region of the embossment is also surrounded by the plastic of high shrinkage rate, which forms the housing, so that due to this shaping, the available surface in the contacting region (Kontaktmaschineazone) is increased in order to improve the longitudinal water tightness due to this enlarged surface.
  • the housing is formed by a plastic with a high shrinkage rate in an injection molding process.
  • the injection molding process has the advantage that the housing can be produced reproducibly in a high-volume series production in a very simple, fast, cost-effective manner and with the required accuracy.
  • a variety of geometries of the housing is possible because depending on the geometry of the housing only other tools (forms) must be installed in an injection molding machine.
  • the use of the plastic with a high shrinkage rate here also has the advantage that achieved during the injection molding process and / or after the production of the finished housing the desired intimate connection with the insulating sheath made of plastic to achieve the desired longitudinal water tightness.
  • a particularly advantageous application of the longitudinally watertight interface according to the invention is seen in the application in vehicles. It is of particular advantage to see the application of the longitudinally watertight interface with the housing, which is formed by a plastic with high shrinkage rate, between an oil pan and an engine compartment of a vehicle.
  • the housing which is formed by a plastic with high shrinkage rate, between an oil pan and an engine compartment of a vehicle.
  • high temperatures oil temperature in operation of the vehicle about 90 degrees Celsius or possibly even higher
  • harsh environmental conditions such as moisture, debris and salt water in the engine compartment and above all, a high temperature difference between the oil pan and the engine compartment , in front.
  • the longitudinal watertight interface is formed by a connector that can be mated with a corresponding mating connector.
  • the connector (and also the mating connector) have contact partners, which are arranged at the end of a line. According to the requirements of the transmission of signals, voltages or the like with the connector in appropriate number either a line or there are a corresponding number of lines available.
  • the lines have an electrically conductive inner conductor, which is provided with external influences and protection against short circuits with an icing jacket.
  • a contact partner such as a plug, a socket or the like, is connected in a suitable manner.
  • the contact partner can also be configured alternatively in the form of a stamped grid, it being conceivable that electrical or electronic components are connected to one another with two or more stamped bars.
  • the connector in turn has a housing, wherein in the housing contact chambers for the contact partners or the at least one stamped grid is arranged.
  • Dae connector housing is formed by its outer contours such that it can be brought together on the one hand with the mating connector and on the other hand, it may be designed and adapted to be mounted in or on a component of the vehicle.
  • the connector has an integrated latch in the housing of the oil pan (Bedplate).
  • the tightness is achieved by molding the contact partner or the at least one stamped grid having an embossed area with a plastic having a high shrinkage rate.
  • a plastic having a high shrinkage rate it is possible to achieve a significantly improved longitudinal water-tightness in comparison to plastics with a low shrinkage rate, with the high-shrinkage plastic proposed here also advantageously having additional requirements for temperature, for the resistance to media and the like
  • a temperature range of minus 40 degrees Celsius to plus 130 degrees Celsius (or even beyond) for the plastic with a high shrinkage rate be represented.
  • the media resistance refers in particular to the resistance to aggressive media such as fuel, oil, oil mist, salt water, detergents and the like.
  • the plastic with high shrinkage rate should also satisfy a high vibration stress.
  • the outer jacket of the at least one electrical line consists of ETFE material (ethylene-tetrafluorethylene), the high-shrinkage plastic being a PBT plastic (polybutylene terephthalate).
  • ETFE material ethylene-tetrafluorethylene
  • PBT plastic polybutylene terephthalate

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

Die Erfindung betrifft eine längswasserdichte Schnittstelle zwischen einem ersten Raum, in dem raue Umgebungsbedingungen insbesondere mit Feuchtigkeit, Wasser oder dergleichen, herrschen und einem zweiten, weitestgehend trockenen Raum, gemäß den Merkmalen des jeweiligen Oberbegriffes der unabhängigen Patentansprüche. Insbesondere betrifft die Erfindung eine längswasserdichte Schnittstelle zwischen einer Ölwanne und einem Motorraum eines Fahrzeuges, insbesondere eines Personenkraftwagens.The invention relates to a longitudinally watertight interface between a first room, in which harsh environmental conditions prevail, in particular with moisture, water or the like, and a second, largely dry room, according to the features of the respective preamble of the independent claims. In particular, the invention relates to a longitudinally watertight interface between an oil pan and an engine compartment of a vehicle, in particular a passenger car.

Es ist bekannt, dass Steckverbindergehäuse aus einem Kunststoff zu spritzen, wobei die Kontaktpartner und / oder das zumindest eine Stanzgitter von dem Kunststoff umspritzt werden. Gleichzeitig wird auch das Ende der elektrischen Leitung beziehungsweise der mehreren elektrischen Leitungen mit dem Kunststoff des Steckverbindergehäuses umspritzt, um auf diese Weise Längswasserdichtheit zu erzielen.It is known that connector housing to inject from a plastic, wherein the contact partners and / or the at least one stamped grid are encapsulated by the plastic. At the same time, the end of the electrical line or the plurality of electrical lines with the plastic of the connector housing is encapsulated in order to achieve longitudinal water-tightness in this way.

Der Erfindung liegt daher die Aufgabe zu Grunde, eine verbesserte längswasserdichte Schnittstelle sowie ein Verfahren zu deren herstellung bereitzustellen.The invention is therefore based on the object to provide an improved longitudinally watertight interface and a method for the production thereof.

Diese Aufgabe Ist durch die Merkmale der unabhängigen Patentansprüche gelöst.This object is solved by the features of the independent claims.

Diese Aufgabe ist vorrichtungsgemäß dadurch gelöst, dass das Gehäuse von einem Kunststoff mit hoher Schwindungsrate gebildet ist. Dies hat den Vorteil, dass das Gehäuse nach seiner Herstellung (und ggf. auch schon während seiner Herstellung) sich sehr fest in dem Bereich, in dem es an dem Isoliermantel der Leitung zur Anlage kommt, dort anschmiegt, um eine innige Verbindung herzustellen, damit die erforderliche Längswasserdichtheit erzielt wird.This object is achieved according to the device in that the housing is formed by a plastic with a high shrinkage rate. This has the advantage that the housing after its production (and possibly even during its production) very tight in the area where it comes to rest on the insulating jacket of the line, there to make an intimate connection, so the required longitudinal water tightness is achieved.

In Weiterbildung der Erfindung Ist in vorteilhafter Weise das Gehäuse ein Spritzgussteil. Dadurch lässt sich das Gehäuse gerade bei einer Serienproduktion In hohen Stückzahlen schnell, einfach, kostengünstig und mit der erforderlichen Genauigkeit reproduzierbar herstellen. Dazu werden die Elemente der Schnittstelle, die von dem Gehäuse umgeben werden sollen, in eine entsprechend gestaltete Werkzeugform (meistens mehrteilig) eingelegt und der Kunststoff mit hoher Schwindungsrate in das Werkzeug eingeführt, insbesondere unter Druck eingespritzt. Dabei Ist selbstverständlicherweise darauf zu achten, dass diejenigen Bereiche, die mit dem Kunststoff hoher Schwindungsrate verbunden werden sollen, auch mit diesem eingespritzten Kunststoff in Verbindung kommen. Bereiche, die nicht von diesem Kunststoff umgeben werden sollen, wie zum Beispiel die Kontaktpartner, sind so innerhalb des Werkzeuges oder auch außerhalb des Werkzeuges anzuordnen, dass verhindert wird, dass sie mit dem eingespritzten Kunststoff in Verbindung kommen.In a further development of the invention, the housing is advantageously an injection molded part. This makes it possible to produce the housing reproducibly in large numbers, quickly, easily, inexpensively and with the required accuracy, especially in mass production. For this purpose, the elements of the interface, which are to be surrounded by the housing, inserted into a correspondingly shaped tool shape (usually multi-part) and introduced the plastic with high shrinkage rate in the tool, in particular injected under pressure. Of course, it must be ensured that those areas which are to be connected to the plastic of high shrinkage rate also come into contact with this injected plastic. Areas that are not to be surrounded by this plastic, such as the contact partners, are so inside the tool or outside of the tool to arrange that prevents them come into contact with the injected plastic.

Erfindungsgemäß wird eine Materialpaarung eingesetzt, bei der der Kunststoff des Isoliermantels der Leitung ein ETFE-Kunststoff (Ethylen-Tetrafluorethylen) und der Kunststoff des Gehäuses ein PBT-Kunststoff (Polybutylenterephthalat) ist. Diese Materialpaarung hat den besonderen Vorteil, dass sie die Langswasserdichtheit auch in großen Temperaturbereichen, insbesondere von minus 40 Grad Celsius bis plus 150 Grad Celsius sicherstellt, wie sie insbesondere bei der Anwendung in Fahrzeugen sichergestellt werden muss. Gleichzeitig hat diese Materialpaarung bzw. Jeder einzelne verwendete Kunststoff den Vorteil, dass er rauen Umgebungsbedingungen widersteht. Hierbei sind beispielsweise Feuchtigkeit, Vibrationen, mechanische Beanspruchungen wie Zug und Druck, sowie bei der Anwendung bei Fahrzeugen zum Beispiel Salzwasser und Ölnebel und vergleichbare Umgebungsbedingungen zu nennen.According to the invention, a material pairing is used in which the plastic of the insulating jacket of the conduit is an ETFE plastic (ethylene-tetrafluoroethylene) and the plastic of the housing is a PBT plastic (polybutylene terephthalate). This combination of materials has the particular advantage that it ensures the long-water-tightness even in large temperature ranges, in particular from minus 40 degrees Celsius to plus 150 degrees Celsius, as they must be ensured especially when used in vehicles. At the same time, this combination of materials or each individual plastic used has the advantage that it withstands harsh environmental conditions. Here, for example, moisture, vibration, mechanical stresses such as train and pressure, as well as when used on vehicles such as salt water and oil mist and comparable environmental conditions.

Zur Steigerung der gewünschten Längawasserdichthelt weist der Bereich, an dem der Kontaktpartner an dem Ende des elektrischen Leiters angeordnet ist, eine Prägung auf. Als Beispiel wird hier genannt, dass der elektrische Leiter der Leitung an deren Ende von dem leoliermantel befreit (freigelegt) wird, so dass dieser isolierte Bereich mit einer Kontaktierungezone des Kontaktpartners in Verbindung gebracht werden kann. Im Bereich der Kontaktierungszone wird das Ende des elektrischen Leiters mit dem Kontaktpartner zumindest elektrisch, vorzugsweise aber mechanisch und elektrisch, verbunden. Die elektrische Verbindung erfolgt beispielsweise durch Verlöten, Verschweißen, Verkleben oder dergleichen. Eine mechanische Festlegung erfolgt beispielsweise durch ein Verkrimpen, bei dem das Ende des elektrischen Leiters von Krimpflügeln einer Krimpverbindung festgelegt wird. Gegebenenfalls kann auch hier daran gedacht werden, nach oder vor erfolgter Verkrimpung den elektrischen Leiter in der Kontaktierungszone an dem Kontaktpartner anzulöten anzuschweißen oder dergleichen. Dieser derart wie vorstehend beschrieben vorbereitete Kontaktierungsbereich wird mit einer Prägung versehen, die beispielswelse als eine flache Prägung, eine Einstanzung, in Form von Nuten und/oder Stegen oder dergleichen ausgebildet Ist. Auch dieser Bereich der Prägung wird mit dem Kunststoff hoher Schwindungsrate, der das Gehäuse bildet, umgeben, so dass aufgrund dieser Formgebung die zur Verfügung stehende Oberfläche im Kontaktierungsbereich (Kontaktierungazone) vergrößert ist, um aufgrund dieser vergrößerten Oberfläche die Längswasserdichtheit zu verbessern.To increase the desired Längawasserdichthelt, the area where the contact partner is disposed at the end of the electrical conductor, an embossment. As an example, it is mentioned here that the electrical conductor of the line at the end of the leoliermantel freed (exposed), so that this isolated region can be associated with a Kontaktierungezone of the contact partner. In the region of the contacting zone, the end of the electrical conductor is connected to the contact partner at least electrically, but preferably mechanically and electrically. The electrical connection is made for example by soldering, welding, gluing or the like. A mechanical fixing takes place, for example, by crimping, in which the end of the electrical conductor is fixed by crimper blades of a crimp connection. Optionally, it may also be considered here to solder the electrical conductor in the contacting zone to the contact partner after or prior to crimping or the like. This prepared as described above contacting region is provided with an embossment, which is beispielswelse as a flat embossing, a stamping, in the form of grooves and / or webs or the like. This region of the embossment is also surrounded by the plastic of high shrinkage rate, which forms the housing, so that due to this shaping, the available surface in the contacting region (Kontaktierungazone) is increased in order to improve the longitudinal water tightness due to this enlarged surface.

Verfahrensgemäß Ist zur Herstellung einer längswasserdichten Schnittstelle vorgesehen, dass das Gehäuse von einem Kunststoff mit hoher Schwindungsrate in einem Spritzgussverfahren gebildet wird. Hierdurch ergeben sich die gleichen Vorteile, wie sie weitervorstehend schon geschildert worden sind. Das Spritzgussverfahren hat den Vorteil, dass das Gehäuse gerade bei einer Serienproduktion mit hohen Stückzahlen sehr einfach, schnell, kostengünstig und mit der erforderlichen Genauigkeit reproduzierbar hergestellt werden kann. Außerdem Ist eine Vielzahl von Geometrien des Gehäuses möglich, da je nach Geometrie des Gehäuses lediglich andere Werkzeuge (Formen) in einen Spritzgussautomaten eingebaut werden müssen. Die Verwendung des Kunststoffes mit hoher Schwindungsrate hat hier ebenso den Vorteil, dass der während des Spritzgussvorganges und/oder nach der Herstellung des fertigen Gehäuses die gewünschte innige Verbindung mit dem Isoliermantel aus Kunststoff zur Erzielung der gewünschten Längswasserdichtheit erzielt.According to the method, it is provided for producing a longitudinally watertight interface that the housing is formed by a plastic with a high shrinkage rate in an injection molding process. This results in the same advantages as they have already been described above. The injection molding process has the advantage that the housing can be produced reproducibly in a high-volume series production in a very simple, fast, cost-effective manner and with the required accuracy. In addition, a variety of geometries of the housing is possible because depending on the geometry of the housing only other tools (forms) must be installed in an injection molding machine. The use of the plastic with a high shrinkage rate here also has the advantage that achieved during the injection molding process and / or after the production of the finished housing the desired intimate connection with the insulating sheath made of plastic to achieve the desired longitudinal water tightness.

Eine besonders vorteilhafte Anwendung der erfindungsgemäßen längswasserdichten Schnittstelle wird in der Anwendung bei Fahrzeugen gesehen. Hierbei ist von besonderem Vorteil die Anwendung der längswasserdichten Schnittstelle mit dem Gehäuse, das von einem Kunststoff mit hoher Schwindungsrate gebildet ist, zwischen einer Ölwanne und einem Motorraum eines Fahrzeuges zu sehen. Bei dieser Anwendung liegen sowohl hohe Temperaturen (Öltemperatur in Betrieb des Fahrzeuges etwa 90 Grad Celsius oder ggf. auch darüber) sowie raue Umgebungsbedingungen (wie Feuchtigkeit, Schmutz- und Salzwasser Im Motorraum und vor allen Dingen auch eine hohe Temperaturdifferenz zwischen der Ölwanne und dem Motorraum, vor.A particularly advantageous application of the longitudinally watertight interface according to the invention is seen in the application in vehicles. It is of particular advantage to see the application of the longitudinally watertight interface with the housing, which is formed by a plastic with high shrinkage rate, between an oil pan and an engine compartment of a vehicle. In this application are both high temperatures (oil temperature in operation of the vehicle about 90 degrees Celsius or possibly even higher) and harsh environmental conditions (such as moisture, debris and salt water in the engine compartment and above all, a high temperature difference between the oil pan and the engine compartment , in front.

Eränzend wird die Erfindung noch wie folgt beschrieben.In addition, the invention will be described as follows.

Die längswasserdichte Schnittstelle wird durch einen Steckverbinder gebildet, der mit einem entsprechenden Gegensteckverbinder zusammengesteckt werden kann. Der Steckverbinder (und auch der Gegensteckverbinder) weisen Kontaktpartner auf, die am Ende einer Leitung angeordnet sind. Entsprechend der Erfordernisse der Übertragung von Signalen, Spannungen oder dergleichen mit dem Steckverbinder ist in entsprechender Anzahl entweder eine Leitung oder es sind in entsprechender Anzahl mehrere Leitungen vorhanden. Die Leitungen weisen einen elektrisch leitfähigen Innenleiter auf, der vor äußeren Einflüssen und zum Schutz vor Kurzschlüssen mit einem isollermantel versehen ist. Am Ende der elektrischen Leitung ist in geeigneter Welse ein Kontaktpartner, wie ein Stecker, eine Buchse oder dergleichen, angeschlossen. Der Kontaktpartner kann auch alternativ in Form eines Stanzgitters ausgestaltet sein, wobei es denkbar ist, dass mit zwei oder mehreren Stanzgittern elektrische oder elektronische Bauteile untereinander verbunden werden.The longitudinal watertight interface is formed by a connector that can be mated with a corresponding mating connector. The connector (and also the mating connector) have contact partners, which are arranged at the end of a line. According to the requirements of the transmission of signals, voltages or the like with the connector in appropriate number either a line or there are a corresponding number of lines available. The lines have an electrically conductive inner conductor, which is provided with external influences and protection against short circuits with an icing jacket. At the end of the electrical line, a contact partner, such as a plug, a socket or the like, is connected in a suitable manner. The contact partner can also be configured alternatively in the form of a stamped grid, it being conceivable that electrical or electronic components are connected to one another with two or more stamped bars.

Der Steckverbinder weist seinerseits ein Gehäuse auf, wobei in dem Gehäuse Kontaktkammern für die Kontaktpartner oder das zumindest eine Stanzgitter angeordnet ist.The connector in turn has a housing, wherein in the housing contact chambers for the contact partners or the at least one stamped grid is arranged.

Dae Steckverbindergehäuse ist von seinen äußeren Konturen derart ausgebildet, dass es einerseits mit dem Gegensteckverbinder zusammengebracht werden kann und andererseits kann es dazu ausgebildet und geeignet sein, in oder an einem Bauteil des Fahrzeuges befestigt zu werden. Insbesondere bei dem Anwendungsbeispiel Ölwanne / Motorraum weist der Steckverbinder eine Integrierte Verrastung im Gehäuse der Ölwanne (Bedplate) auf.Dae connector housing is formed by its outer contours such that it can be brought together on the one hand with the mating connector and on the other hand, it may be designed and adapted to be mounted in or on a component of the vehicle. In particular, in the application example oil pan / engine compartment, the connector has an integrated latch in the housing of the oil pan (Bedplate).

Erfindungsgemäß ist zur verbesserten Längswasserdichtheit vorgesehen, dass die Dichtigkeit durch Umspritzen des Kontaktpartners oder des zumindest einen Stanzgitters mit geprägtem Bereich mit einem Kunststoff mit hoher Schwindungsrate erreicht wird. Dadurch lässt sich gegenüber Kunststoffen mit geringer Schwindungsrate eine deutlich verbesserte Längswasserdichtheit erzielen, wobei der hier vorgeschlagene Kunststoff mit hoher Schwindungsrate In vorteilhafter Weise auch zusätzliche Anforderungen an die Temperatur, an die Medienbeständigkeit und dergleichen aufweistAccording to the invention, it is provided for improved longitudinal watertightness that the tightness is achieved by molding the contact partner or the at least one stamped grid having an embossed area with a plastic having a high shrinkage rate. As a result, it is possible to achieve a significantly improved longitudinal water-tightness in comparison to plastics with a low shrinkage rate, with the high-shrinkage plastic proposed here also advantageously having additional requirements for temperature, for the resistance to media and the like

Insbesondere für die Anwendung In Fahrzeugen soll ein Temperaturbereich von minus 40 Grad Celsius bis plus 130 Grad Celsius (oder auch darüber hinaus) für den Kunststoff mit hoher Schwindungsrate darstellbar sein. Die Medienbeständigkeit bezieht sich insbesondere auf die Resistenz gegen aggressive Medien wie Kraftstoff, Öl, Ölnebel, Salzwasser, Reinigungsmittel und dergleichen. Außerdem soll der Kunststoff mit hoher Schwindungsrate auch einer hohen Vibrationsbeanspruchung genügen.In particular, for the application In vehicles, a temperature range of minus 40 degrees Celsius to plus 130 degrees Celsius (or even beyond) for the plastic with a high shrinkage rate be represented. The media resistance refers in particular to the resistance to aggressive media such as fuel, oil, oil mist, salt water, detergents and the like. In addition, the plastic with high shrinkage rate should also satisfy a high vibration stress.

Erfindungsgemä besteht der Außenmantel der zumindest einen elektrischen Leitung aus ETFE-Material (Ethylen-Tetrafluxethylen), wobei der Kunststoff mit hoher Schwindungsrate ein PBT-Kunststoff (Polybutylenterephtalat) ist.According to the invention, the outer jacket of the at least one electrical line consists of ETFE material (ethylene-tetrafluorethylene), the high-shrinkage plastic being a PBT plastic (polybutylene terephthalate).

Claims (7)

  1. Longitudinally watertight interface, comprising a plug connector with contact partners disposed in a housing, wherein each contact partner is disposed on the end of an electrical conductor of a line that is enclosed by an insulating casing made of plastic, wherein the housing is formed from a plastic that comes into contact with the insulating sheath of the line,
    characterized in that
    the plastic of the insulating sheath of the line is an ETFE plastic, ethylene tetrafluoroethylene, and the plastic of the housing is a PBT plastic, polybutylene terephthalate.
  2. Longitudinally watertight interface according to Claim 1, characterized in that the contact partners are disposed in a contact support comprising contact chambers for each contact partner and the contact support is disposed in the housing.
  3. Longitudinally watertight interface according to any one of Claims 1 and 2, characterized in that the contact partners are at least partly directly enclosed by the housing.
  4. Longitudinally watertight interface according to any one of Claims 1, 2 and 3, characterized in that the housing is an injection moulded part.
  5. Longitudinally watertight interface according to any one of Claims 1, 2, 3 and 4, characterized in that the region on which the contact partner is disposed on the end of the electrical conductor comprises an embossing.
  6. Method for manufacturing a longitudinally watertight interface, comprising a plug connector with contact partners disposed in a housing, wherein each contact partner is disposed on the end of an electrical conductor of a line that is enclosed by an insulating casing that is made of plastic, wherein the housing is formed of a plastic by an injection moulding method and comes into contact with the insulating sheath of the line,
    characterized in that an ETFE plastic, ethylene tetrafluoroethylene, is used as the plastic of the insulating sheath of the line and a PBT plastic, polybutylene terephthalate, is used as the plastic of the housing.
  7. Use of a longitudinally watertight interface according to Claim 1 between a sump and an engine compartment of a vehicle, comprising a plug connector with contact partners disposed in a housing, wherein each contact partner is disposed on the end of an electrical conductor of a line that is enclosed by an insulating sheath made of plastic and the housing is formed from a plastic.
EP11003036.8A 2010-04-15 2011-04-11 Coating of a lead frame with a plastic material with high shrinkage rate Active EP2378612B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010015227 2010-04-15

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GB2184592A (en) * 1985-12-20 1987-06-24 Pirelli Cavi Spa Low voltage electric cable
US20050199414A1 (en) * 2004-03-10 2005-09-15 Kim Young J. Lightweight composite electrical conductors and cables incorporating same
US20050202242A1 (en) * 2003-12-09 2005-09-15 Favereau Daniel A. Hydrofluorocarbon polymer compositions for scrape abrasion resistant articles
US20090301752A1 (en) * 2006-12-08 2009-12-10 Asahi Glass Company, Limited Ethylene/tetrafluoroethylene copolymer and method for its production

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DE3440400A1 (en) * 1983-12-09 1985-06-20 Ford-Werke AG, 5000 Köln WATERPROOF ELECTRICAL CONNECTOR AND METHOD FOR THE PRODUCTION THEREOF
CN1314054C (en) * 2001-04-17 2007-05-02 贾德电线公司 Multi-layer insulation system for electrical conductors
DE102005002513B4 (en) * 2004-09-09 2007-09-13 Rema Lipprandt Gmbh & Co. Kg Method for producing a socket and a plug of a device plug-in device and a circuit board plug-in device, as well as socket and plug made according to such a method

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Publication number Priority date Publication date Assignee Title
GB2184592A (en) * 1985-12-20 1987-06-24 Pirelli Cavi Spa Low voltage electric cable
US20050202242A1 (en) * 2003-12-09 2005-09-15 Favereau Daniel A. Hydrofluorocarbon polymer compositions for scrape abrasion resistant articles
US20050199414A1 (en) * 2004-03-10 2005-09-15 Kim Young J. Lightweight composite electrical conductors and cables incorporating same
US20090301752A1 (en) * 2006-12-08 2009-12-10 Asahi Glass Company, Limited Ethylene/tetrafluoroethylene copolymer and method for its production

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ES2574928T3 (en) 2016-06-23
DE102011016685A1 (en) 2012-05-10

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