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EP0728986A1 - Socket for connecting a gas discharge lamp - Google Patents

Socket for connecting a gas discharge lamp Download PDF

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Publication number
EP0728986A1
EP0728986A1 EP95119114A EP95119114A EP0728986A1 EP 0728986 A1 EP0728986 A1 EP 0728986A1 EP 95119114 A EP95119114 A EP 95119114A EP 95119114 A EP95119114 A EP 95119114A EP 0728986 A1 EP0728986 A1 EP 0728986A1
Authority
EP
European Patent Office
Prior art keywords
housing
circuit board
plug
printed circuit
gas discharge
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.)
Ceased
Application number
EP95119114A
Other languages
German (de)
French (fr)
Inventor
Thomas Techniker Fabry
Peter Dipl.-Ing. Kusserow
Thomas Dipl.-Ing.(Fh) Loeffler
Alexander Meister Mueller
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0728986A1 publication Critical patent/EP0728986A1/en
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/6608Structural association with built-in electrical component with built-in single component
    • H01R13/6625Structural association with built-in electrical component with built-in single component with capacitive component
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/17Discharge light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19Attachment of light sources or lamp holders
    • F21S41/192Details of lamp holders, terminals or connectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00Safety devices structurally associated with lighting devices

Definitions

  • the invention is based on a plug for contacting a gas discharge lamp according to the preamble of claim 1.
  • Such a connector is known from DE 43 10 307 A1.
  • This plug contains at least one electrical interference suppression element, by means of which the electromagnetic radiation generated by the gas discharge lamp during its operation is prevented from spreading along the connecting lines connected to the plug.
  • the plug has a housing made of electrically insulating material, in which the interference suppression element is arranged and which is filled with a potting compound made of electrically insulating material.
  • the at least one interference suppression element and the casting compound have different thermal expansion coefficients.
  • the interference suppressor and the potting compound heat up during operation of the gas discharge lamp, which is associated with a volume expansion, which, however, with the housing completely filled with the potting compound, leads to the interference suppressor being loaded by pressure, which is due to the latter Function and service life have a negative impact.
  • the interference suppression element is rigidly connected to the housing via the sealing compound, so that vibrations are transmitted directly to the interference suppression element, which likewise has a negative effect on the service life of the interference suppression element.
  • the connector according to the invention with the features of claim 1 has the advantage that the at least one interference suppression element and the sealing compound can expand when heated to the elastically deformable mass, and thus the interference suppression element is not subjected to as much pressure.
  • the at least one interference suppression element is decoupled from the housing and the sealing compound of the plug by the elastically deformable mass, so that vibrations of the plug are not transmitted directly to the interference suppression element.
  • the at least one interference suppression element of the connector according to the invention has increased functional reliability and a longer service life.
  • FIG. 1 shows a headlight for vehicles in a vertical longitudinal section with a gas discharge lamp and a plug for contacting the gas discharge lamp
  • FIG. 2 shows a base of the gas discharge lamp in a partial longitudinal section in an enlarged view
  • 3 shows the connector according to a first embodiment in an enlarged illustration in a longitudinal section, along line III-III in FIG. 4
  • FIG. 4 shows a view of the connector in the direction of arrow IV in FIG. 3
  • FIG. 5 shows the connector in a partial section along line VV in FIG. 3
  • Figure 6 shows the connector according to a second embodiment in a longitudinal section.
  • a headlamp for vehicles, in particular motor vehicles, shown in FIG. 1 has a housing 10 in which a reflector 12 is adjustably arranged.
  • the housing 10 has at its front end a light exit opening 14 which is closed with a cover disk 16.
  • a plug 24 is connected to it, which is connected via two connecting lines in the form of cables 25 to an electrical ballast device 23 for operating the gas discharge lamp 22.
  • the ballast 23 can be arranged within the headlight housing 10.
  • the gas discharge lamp 22 has a base 26 which is made of electrically insulating material such as ceramic or plastic.
  • the base 26 has a circular cylindrical section 28 pointing away from the reflector 12, in which a recess 30 is formed starting from its end face and tapers conically towards the reflector 12.
  • a plug connection 32 for one of the electrodes of the gas discharge lamp 22 extends through the base 26 approximately centrally in the recess 30 and is designed, for example, as a circular plug pin.
  • Two pins 35 protrude radially diametrically opposite one another from the jacket of section 28 of base 26 of gas discharge lamp 22.
  • the plug 24 is shown in Figures 3 to 5 according to a first embodiment and has a housing which consists of two housing parts 36,37.
  • the housing parts 36, 37 consist of electrically insulating material, preferably plastic.
  • a first housing part 36 is cup-shaped and the opening of the cup-shaped housing part 36 can be closed by the second housing part 37, so that an interior space essentially defined by the housing parts 36, 37 is formed.
  • the housing part 37 has means for fastening the plug 24 to the base 26 of the gas discharge lamp 22.
  • At least one electrical interference suppression element in the form of a capacitor 38 and / or a coil 40 is arranged in the interior of the plug 24 delimited by the housing parts 36, 37, by means of which the electromagnetic interference radiation generated by the gas discharge lamp 22 during its operation propagates along the connecting lines 25 is prevented.
  • a coil 40 is preferably connected in series with each of the two connecting lines 25, and a capacitor 38 is connected in parallel with the connecting lines 25 both before the two coils 40 and after the two coils 40.
  • the interference suppression elements 38, 40 are arranged on a printed circuit board 42 and are connected to one another in an electrically conductive manner via conductor tracks arranged thereon.
  • the connecting lines 25 are soldered to the circuit board 42.
  • a first contact element 44 in the form of a plug-in sleeve protrudes from the printed circuit board 42 one of the connecting lines 25 is connected with the interposition of the interference suppression elements 38, 40.
  • a second contact element 46 also protrudes from the printed circuit board 42 and is connected to the other connecting line with the interference suppressors 38, 40 interposed.
  • the second contact element 46 is U-shaped in cross section through the plug 24 according to FIG. 5.
  • the interference suppression elements 38, 40 and the contact elements 44 and 46 are all arranged on the same side of the printed circuit board 42 and, together with the printed circuit board 42, form a preassembled structural unit which is inserted into the pot-shaped housing part 36.
  • the assembly is inserted into the housing part 36 so that the free side of the printed circuit board 42 faces the bottom of the housing part 36 and the interference suppression elements 38, 40 and the contact elements 44, 46 are arranged on the open side of the housing part 36.
  • the cables 25 protrude approximately perpendicular to the circuit board 42 from the housing part 36 and are accommodated in guides 48 formed on the inside of the lateral wall of the housing part 36.
  • the housing part 37 has a substantially flat inside and an outwardly projecting circular cylindrical section 50 which has an opening 52 arranged coaxially therein.
  • a recess 54 is formed within the section 50, starting from the end face thereof, in which a collar 56 is arranged coaxially surrounding the opening 52.
  • a third contact element is arranged, from which two pairs of mutually assigned male connectors 58 protrude on the inside of housing part 37 and from which, over part of the inner circumference of section 50, three arms which can be resiliently deformed radially to the longitudinal axis 51 of section 50 59 protrude.
  • the third contact element is from the outside of the housing part 37 forth with its knife strips 58 until they pass through on the inside.
  • the housing part 37 also has circumferential strips 60 which are formed in one piece with the section 50 and have U-shaped cutouts 61 pointing away from the section 50.
  • the housing part 37 is open between the strips 60 and the section 50.
  • the structural unit consisting of the printed circuit board 42, the interference suppression elements 38, 40 and the contact elements 44, 46 is produced.
  • This assembly is inserted into the housing part 36.
  • a drop 62 of a mass of a permanently elastic plastic, preferably silicone, is applied to at least a part of its circumference on its side facing upward in the opening of the housing part 36.
  • the housing part 37 is assembled by placing it on the housing part 36 with its essentially flat inside facing the printed circuit board 42, so that it closes the opening thereof.
  • the cables 25 pass through the U-shaped recesses 61 of the housing part 37.
  • the plug-in sleeve 44 of the printed circuit board 42 passes through the opening 52 of the cylindrical section 50 of the housing part 37 and is then arranged inside the collar 56.
  • One leg of the second contact element 46 of the printed circuit board 42 enters between two mutually associated male connectors 58, with the same being resiliently spread apart, so that the arms 59 are electrically conductively connected to the second contact element 46.
  • the housing part 37 lies on the edge of the opening of the housing part 36.
  • the silicone drop 62 comes into contact with the inside of the housing part 37 and is pressed flat.
  • the interior of the plug 24 is electrically sealed with a sealing compound insulating material, preferably plastic, poured out.
  • the casting compound subsequently solidifies, so that the housing parts 36, 37 and the casting compound form a firm bond.
  • the silicone compound 62 prevents the interference suppressor 38 or 40 on which it is arranged from being surrounded on its entire circumference by the casting compound or the housing parts 36, 37.
  • the interference suppression element 38 or 40 is heated, it can expand with the silicone mass 62 being compressed elastically.
  • the interference suppression element 38 or 40 which is partially surrounded by the silicone compound 62, is not rigidly connected to the plug 24, but is decoupled from it by the silicone compound 62.
  • the end region of the cylindrical section 50 of the housing part 37 has, as a means for fastening the plug 24 to the base 26 of the gas discharge lamp 22, starting from its front end, two diametrically opposed slots 64 which initially run obliquely to the longitudinal axis 51 of the section 50 and approximately in their end region run perpendicular to the longitudinal axis 51.
  • a pin 35 of the base 26 of the lamp 22 enters a slot 64 and the plug 24 is locked on the base 26 by turning the pin 35 in the direction perpendicular to the longitudinal axis 51 reach the end region of the slots 64.
  • the slots 64 can also be provided in their end region with a notch 65, into which the respective pin 35 engages.
  • the plug connection 32 When assembling the plug 24, the plug connection 32 enters the first contact element 44 of the plug in the form of the plug-in sleeve with a resilient widening thereof.
  • the arms 59 come under prestress into contact with the conductor ring 34, so that the two connecting lines 25 are each connected to an electrode of the gas discharge lamp 22.
  • the collar 56 can be of one be surrounded elastic sealing element 57, which enters the recess 30 of the lamp base 26.
  • the printed circuit board 42 can also be omitted in a second exemplary embodiment of the plug 124 shown in FIG. 6, in which case the interference suppression elements 138, 140 are arranged directly in a housing part 137 and are held via their electrical connections during the assembly of the plug 124.
  • the housing of the plug 124 can be formed in one piece and consists only of the housing part 137.
  • the contact element 144 in the form of the plug-in sleeve and the contact element with the outwardly projecting arms 159 are held in the housing part 137.
  • the plug sleeve 144 and the arms 159 protrude on the inside of the housing part 137 and there are soldered to these electrical lines 170 for connection to the interference suppression elements 138, 140.
  • the ends of the cables 25 likewise protrude through the housing part 137 on the inside thereof and are soldered there to the interference suppression elements 138, 140 via electrical lines.
  • a permanent elastic mass 162, preferably silicone, is applied between at least part of the circumference of at least one of the interference suppression elements 138, 140 and the housing part 137 adjoining this, as in the first exemplary embodiment.
  • the housing part 137 is finally filled with a potting compound made of electrically insulating material, preferably plastic.
  • the housing part 137 is otherwise designed like the housing part 37 in the first exemplary embodiment.
  • the cables 25 run to the reflector 12 after exiting the housing 36, 37 or 137 of the plug 24 or 124.
  • a deflection device 80 can be arranged on the plug 24 or 124, through which the cable 25 are deflected so that they run away from the reflector 12 after exiting the housing 36, 37 or 137.
  • the deflection device 80 can be connected to the housing 36 or 37 or 137 of the plug 24 or 124 or be formed in one piece with it.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Connecting Device With Holders (AREA)

Abstract

Plug used for gas discharge lamp includes at least one electrical interference suppressor (38, 40) to prevent propagation of electromagnetic interference from the lamp to connecting cables (25). The suppressor is located within a housing (36, 37) which is filled at least partly with an electrically insulating casting material. A mass of elastic material (62) is provided between at least part of the periphery of the suppressor(s) and the adjacent housing and/or adjacent casting material. Elastic material is pref. a permanently elastic plastic, partic. silicone. Suppressor or suppressors may be mounted on a printed circuit board (42).

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Stecker zur Kontaktierung einer Gasentladungslampe nach der Gattung des Anspruchs 1.The invention is based on a plug for contacting a gas discharge lamp according to the preamble of claim 1.

Ein solcher Stecker ist durch die DE 43 10 307 A1 bekannt. Dieser Stecker enthält wenigstens ein elektrisches Entstörelement, durch das eine Ausbreitung der von der Gasentladungslampe während deren Betrieb erzeugten elektromagnetischen Strahlung entlang der mit dem Stecker verbundenen Anschlußleitungen verhindert wird. Der Stecker weist dabei ein Gehäuse aus elektrisch isolierendem Material auf, in dem das Entstörelement angeordnet ist und das mit einer Vergußmasse aus elektrisch isolierendem Material ausgefüllt ist. Das wenigstens eine Entstörelement und die Vergußmasse weisen dabei unterschiedliche thermische Ausdehnungskoeffizienten auf. Das Entstörelement und die Vergußmasse erwärmen sich während des Betriebs der Gasentladungslampe, womit eine Volumenausdehnung verbunden ist, was jedoch bei vollständig mit der Vergußmasse gefülltem Gehäuse dazu führt, daß das Entstörelement durch Druck belastet wird, was sich auf dessen Funktion und Lebensdauer negativ auswirkt. Außerdem ist das Entstörelement über die Vergußmasse starr mit dem Gehäuse verbunden, so daß Erschütterungen direkt auf das Entstörelement übertragen werden, was sich ebenfalls negativ auf die Lebensdauer des Entstörelements auswirkt.Such a connector is known from DE 43 10 307 A1. This plug contains at least one electrical interference suppression element, by means of which the electromagnetic radiation generated by the gas discharge lamp during its operation is prevented from spreading along the connecting lines connected to the plug. The plug has a housing made of electrically insulating material, in which the interference suppression element is arranged and which is filled with a potting compound made of electrically insulating material. The at least one interference suppression element and the casting compound have different thermal expansion coefficients. The interference suppressor and the potting compound heat up during operation of the gas discharge lamp, which is associated with a volume expansion, which, however, with the housing completely filled with the potting compound, leads to the interference suppressor being loaded by pressure, which is due to the latter Function and service life have a negative impact. In addition, the interference suppression element is rigidly connected to the housing via the sealing compound, so that vibrations are transmitted directly to the interference suppression element, which likewise has a negative effect on the service life of the interference suppression element.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Stecker mit den Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß sich das wenigstens eine Entstörelement und die Vergußmasse bei Erwärmung zu der elastisch verformbaren Masse hin ausdehnen können und somit das Entstörelement nicht so stark auf Druck beansprucht wird. Außerdem ist das wenigstens eine Entstörelement durch die elastisch verformbare Masse vom Gehäuse und der Vergußmasse des Steckers entkoppelt, so daß Erschütterungen des Steckers nicht direkt auf das Entstörelement übertragen werden. Insgesamt weist das wenigstens eine Entstörelement des erfindungsgemäßen Steckers eine erhöhte Funktionssicherheit und eine längere Lebensdauer auf.The connector according to the invention with the features of claim 1 has the advantage that the at least one interference suppression element and the sealing compound can expand when heated to the elastically deformable mass, and thus the interference suppression element is not subjected to as much pressure. In addition, the at least one interference suppression element is decoupled from the housing and the sealing compound of the plug by the elastically deformable mass, so that vibrations of the plug are not transmitted directly to the interference suppression element. Overall, the at least one interference suppression element of the connector according to the invention has increased functional reliability and a longer service life.

In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen des erfindungsgemäßen Steckers angegeben. Durch die Ausbildung gemäß den Ansprüchen 4 bis 6 ist ein einfacher Zusammenbau des Steckers ermöglicht.Advantageous refinements and developments of the plug according to the invention are specified in the dependent claims. The configuration according to claims 4 to 6 enables simple assembly of the plug.

Zeichnungdrawing

Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibunug näher erläutert. Es zeigen Figur 1 einen Scheinwerfer für Fahrzeuge in einem vertikalen Längsschnitt mit einer Gasentladungslampe und einem Stecker zur Kontaktierung der Gasentladungslampe, Figur 2 einen Sockel der Gasentladunglampe in einem teilweisen Längsschnitt in vergrößerter Darstellung, Figur 3 den Stecker gemäß einem ersten Ausführungsbeispiel in vergrößerter Darstellung in einem Längsschnitt, entlang Linie III-III in Figur 4, Figur 4 eine Ansicht des Steckers in Pfeilrichtung IV in Figur 3, Figur 5 den Stecker in einem Teilschnitt entlang Linie V-V in Figur 3 und Figur 6 den Stecker gemäß einem zweiten Ausführungsbeispiel in einem Längsschnitt.Two embodiments of the invention are shown in the drawing and explained in more detail in the following description. 1 shows a headlight for vehicles in a vertical longitudinal section with a gas discharge lamp and a plug for contacting the gas discharge lamp, FIG. 2 shows a base of the gas discharge lamp in a partial longitudinal section in an enlarged view, 3 shows the connector according to a first embodiment in an enlarged illustration in a longitudinal section, along line III-III in FIG. 4, FIG. 4 shows a view of the connector in the direction of arrow IV in FIG. 3, FIG. 5 shows the connector in a partial section along line VV in FIG. 3 and Figure 6 shows the connector according to a second embodiment in a longitudinal section.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Ein in Figur 1 dargestellter Scheinwerfer für Fahrzeuge, insbesondere Kraftfahrzeuge, weist ein Gehäuse 10 auf, in dem ein Reflektor 12 verstellbar angeordnet ist. Das Gehäuse 10 weist an seinem vorderen Ende eine Lichtaustrittsöffnung 14 auf, die mit einer Abdeckscheibe 16 verschlossen ist. In den Reflektor 12 ist in eine Öffnung 18 in dessen Scheitel über einen Lampenträger 20 eine Gasentladungslampe 22 eingesetzt, die in nicht dargestellter Weise im Lampenträger 20 gehalten ist. Zur Kontaktierung der Gasentladungslampe 22 ist mit dieser ein Stecker 24 verbunden, der über zwei Anschlußleitungen in Form von Kabeln 25 mit einer elektrischen Vorschalteinrichtung 23 zum Betrieb der Gasentladungslampe 22 verbunden ist. Die Vorschalteinrichtung 23 kann innerhalb des Scheinwerfergehäuses 10 angeordnet sein.A headlamp for vehicles, in particular motor vehicles, shown in FIG. 1 has a housing 10 in which a reflector 12 is adjustably arranged. The housing 10 has at its front end a light exit opening 14 which is closed with a cover disk 16. A gas discharge lamp 22, which is held in the lamp holder 20 in a manner not shown, is inserted into the reflector 12 in an opening 18 in the apex thereof via a lamp holder 20. To make contact with the gas discharge lamp 22, a plug 24 is connected to it, which is connected via two connecting lines in the form of cables 25 to an electrical ballast device 23 for operating the gas discharge lamp 22. The ballast 23 can be arranged within the headlight housing 10.

Die Gasentladungslampe 22 weist wie in Figur 2 dargestellt einen Sockel 26 auf, der aus elektrisch isolierendem Material wie Keramik oder Kunststoff besteht. Der Sockel 26 weist einen kreiszylinderförmigen, vom Reflektor 12 wegweisenden Abschnitt 28 auf, in dem von seiner Stirnseite ausgehend eine Vertiefung 30 ausgebildet ist, die sich zum Reflektor 12 hin konisch verjüngt. Etwa zentral in der Vertiefung 30 ragt durch den Sockel 26 ein Steckanschluß 32 für eine der Elektroden der Gasentladungslampe 22 hindurch, der beispielsweise als ein Rundsteckstift ausgebildet ist. Am Außenumfang des Sockelabschnitts 28 ist ein in sich geschlossener metallischer Leiterring 34 angeordnet, der mit der anderen Elektrode der Gasentladungslampe 22 verbunden ist. Aus dem Mantel des Abschnitts 28 des Sockels 26 der Gasentladungslampe 22 ragen radial einander diametral gegenüberliegend zwei Stifte 35 heraus.As shown in FIG. 2, the gas discharge lamp 22 has a base 26 which is made of electrically insulating material such as ceramic or plastic. The base 26 has a circular cylindrical section 28 pointing away from the reflector 12, in which a recess 30 is formed starting from its end face and tapers conically towards the reflector 12. A plug connection 32 for one of the electrodes of the gas discharge lamp 22 extends through the base 26 approximately centrally in the recess 30 and is designed, for example, as a circular plug pin. On the outer circumference of the base section 28 there is a self-contained metallic conductor ring 34 which is connected to the other electrode of the gas discharge lamp 22. Two pins 35 protrude radially diametrically opposite one another from the jacket of section 28 of base 26 of gas discharge lamp 22.

Der Stecker 24 ist in den Figuren 3 bis 5 gemäß einem ersten Ausführungsbeispiel dargestellt und weist ein Gehäuse auf, das aus zwei Gehäuseteilen 36,37 besteht. Die Gehäuseteile 36,37 bestehen aus elektrisch isolierendem Material, vorzugsweise Kunststoff. Wie in Figur 3 dargestellt ist dabei ein erstes Gehäuseteil 36 topfförmig ausgebildet und durch das zweite Gehäuseteil 37 ist die Öffnung des topfförmigen Gehäuseteils 36 verschließbar, so daß ein im wesentlichen durch die Gehäuseteile 36,37 begrenzter Innenraum gebildet ist. Das Gehäuseteil 37 weist Mittel zur Befestigung des Steckers 24 am Sockel 26 der Gasentladungslampe 22 auf.The plug 24 is shown in Figures 3 to 5 according to a first embodiment and has a housing which consists of two housing parts 36,37. The housing parts 36, 37 consist of electrically insulating material, preferably plastic. As shown in FIG. 3, a first housing part 36 is cup-shaped and the opening of the cup-shaped housing part 36 can be closed by the second housing part 37, so that an interior space essentially defined by the housing parts 36, 37 is formed. The housing part 37 has means for fastening the plug 24 to the base 26 of the gas discharge lamp 22.

In dem durch die Gehäuseteile 36,37 begrenzten Innenraum des Steckers 24 ist wenigstens ein elektrisches Entstörelement in Form eines Kondensators 38 und/oder einer Spule 40 angeordnet, durch das eine Ausbreitung der von der Gasentladungslampe 22 während ihres Betriebs erzeugten elektromagnetischen Störstrahlung entlang der Anschschlußleitungen 25 verhindert wird. Vorzugsweise ist mit jeder der beiden Anschlußleitungen 25 jeweils eine Spule 40 in Reihe geschaltet und sowohl vor den beiden Spulen 40 als auch nach den beiden Spulen 40 jeweils ein Kondensator 38 parallel zu den Anschlußleitungen 25 geschaltet. Die Entstörelemente 38,40 sind auf einer Leiterplatte 42 angeordnet und über auf dieser angeordnete Leiterbahnen miteinander elektrisch leitend verbunden. Die Anschlußleitungen 25 sind auf der Leiterplatte 42 angelötet. Von der Leiterplatte 42 steht ein erstes Kontaktelement 44 in Form einer Steckhülse ab, die mit einer der Anschlußleitungen 25 unter Zwischenschaltung der Entstörelemente 38,40 verbunden ist. Von der Leiterplatte 42 steht außerdem ein zweites Kontaktelement 46 ab, das unter Zwischenschaltung der Entstörelemente 38,40 mit der anderen Anschlußleitung verbunden ist. Das zweite Kontaktelement 46 ist in einem Querschnitt durch den Stecker 24 gemäß Figur 5 betrachtet u-förmig ausgebildet.At least one electrical interference suppression element in the form of a capacitor 38 and / or a coil 40 is arranged in the interior of the plug 24 delimited by the housing parts 36, 37, by means of which the electromagnetic interference radiation generated by the gas discharge lamp 22 during its operation propagates along the connecting lines 25 is prevented. A coil 40 is preferably connected in series with each of the two connecting lines 25, and a capacitor 38 is connected in parallel with the connecting lines 25 both before the two coils 40 and after the two coils 40. The interference suppression elements 38, 40 are arranged on a printed circuit board 42 and are connected to one another in an electrically conductive manner via conductor tracks arranged thereon. The connecting lines 25 are soldered to the circuit board 42. A first contact element 44 in the form of a plug-in sleeve protrudes from the printed circuit board 42 one of the connecting lines 25 is connected with the interposition of the interference suppression elements 38, 40. A second contact element 46 also protrudes from the printed circuit board 42 and is connected to the other connecting line with the interference suppressors 38, 40 interposed. The second contact element 46 is U-shaped in cross section through the plug 24 according to FIG. 5.

Die Entstörelemente 38,40 sowie die Kontaktelemente 44 und 46 sind alle auf derselben Seite der Leiterplatte 42 angeordnet und bilden mit der Leiterplatte 42 eine vormontierte Baueinheit, die in das topfförmige Gehäuseteil 36 eingesetzt wird. Die Baueinheit wird so in das Gehäuseteil 36 eingesetzt, daß die Leiterplatte 42 mit ihrer freien Seite zum Boden des Gehäuseteils 36 weist und die Entstörelemente 38,40 sowie die Kontaktelemente 44,46 auf der offenen Seite des Gehäuseteils 36 angeordnet sind. Die Kabel 25 ragen dabei etwa senkrecht zur Leiterplatte 42 aus dem Gehäuseteil 36 heraus und sind in an der Innenseite der seitlichen Wandung des Gehäuseteils 36 ausgebildeten Führungen 48 aufgenommen.The interference suppression elements 38, 40 and the contact elements 44 and 46 are all arranged on the same side of the printed circuit board 42 and, together with the printed circuit board 42, form a preassembled structural unit which is inserted into the pot-shaped housing part 36. The assembly is inserted into the housing part 36 so that the free side of the printed circuit board 42 faces the bottom of the housing part 36 and the interference suppression elements 38, 40 and the contact elements 44, 46 are arranged on the open side of the housing part 36. The cables 25 protrude approximately perpendicular to the circuit board 42 from the housing part 36 and are accommodated in guides 48 formed on the inside of the lateral wall of the housing part 36.

Das Gehäuseteil 37 weist eine im wesentlichen ebene Innenseite und einen nach außen abstehenden kreiszylinderförmigen Abschnitt 50 auf, der eine koaxial in diesem angeordnete Öffnung 52 aufweist. Innerhalb des Abschnitts 50 ist ausgehend von dessen Stirnseite eine Vertiefung 54 gebildet, in der die Öffnung 52 koaxial umgebend ein Kragen 56 angeordnet ist. Im Abschnitt 50 des Gehäuseteils 37 ist ein drittes Kontaktelement angeordnet, von dem auf der Innenseite des Gehäuseteils 37 zwei Paare von einander zugeordneten Messerleisten 58 hervorstehen und von dem über einen Teil des Innenumfangs des Abschnitts 50 drei radial zur Längsachse 51 des Abschnitts 50 federnd verformbare Arme 59 hervorstehen. Das dritte Kontaktelement wird von der Außenseite des Gehäuseteils 37 her mit seinen Messerleisten 58 eingesetzt, bis diese auf der Innenseite hindurchtreten. Das Gehäuseteil 37 weist außerdem mit dem Abschnitt 50 einstückig ausgebildete umlaufende Leisten 60 auf, die vom Abschnitt 50 wegweisende u-förmige Aussparungen 61 aufweisen. Zwischen den Leisten 60 und dem Abschnitt 50 ist das Gehäuseteil 37 offen ausgebildet.The housing part 37 has a substantially flat inside and an outwardly projecting circular cylindrical section 50 which has an opening 52 arranged coaxially therein. A recess 54 is formed within the section 50, starting from the end face thereof, in which a collar 56 is arranged coaxially surrounding the opening 52. In section 50 of housing part 37, a third contact element is arranged, from which two pairs of mutually assigned male connectors 58 protrude on the inside of housing part 37 and from which, over part of the inner circumference of section 50, three arms which can be resiliently deformed radially to the longitudinal axis 51 of section 50 59 protrude. The third contact element is from the outside of the housing part 37 forth with its knife strips 58 until they pass through on the inside. The housing part 37 also has circumferential strips 60 which are formed in one piece with the section 50 and have U-shaped cutouts 61 pointing away from the section 50. The housing part 37 is open between the strips 60 and the section 50.

Nachfolgend wird der Zusammenbau des Steckers 24 erläutert. Zunächst wird wie schon vorstehend beschrieben die Baueinheit bestehend aus der Leiterplatte 42, den Entstörelementen 38,40 und den Kontaktelementen 44,46 hergestellt. Diese Baueinheit wird in das Gehäuseteil 36 eingesetzt. Bei wenigstens einem der Enstörelemente 38,40 wird auf dessen in der Öffnung des Gehäuseteils 36 nach oben weisender Seite auf wenigstens einem Teil von dessen Umfang ein Tropfen 62 einer Masse eines dauerhaft elastischen Kunststoffs, vorzugsweise Silikon, aufgebracht. Anschließend wird das Gehäuseteil 37 montiert, indem dieses mit seiner im wesentlichen ebenen Innenseite zur Leiterplatte 42 weisend auf das Gehäuseteil 36 aufgesetzt wird, so daß es dessen Öffnung veschließt. Dabei treten die Kabel 25 durch die u-förmigen Aussparungen 61 des Gehäuseteils 37 hindurch. Die Steckhülse 44 der Leiterplatte 42 tritt durch die Öffnung 52 des zylinderförmigen Abschnitts 50 des Gehäuseteils 37 hindurch und ist dann innerhalb des Kragens 56 angeordnet. Zwischen jeweils zwei einander zugeordneten Messerleisten 58 tritt unter federnder Auseinanderspreizung derselben jeweils ein Schenkel des zweiten Kontaktelements 46 der Leiterplatte 42 ein, so daß die Arme 59 elektrisch leitend mit dem zweiten Kontaktelement 46 verbunden sind. In seiner Endlage liegt das Gehäuseteil 37 auf dem Rand der Öffnung des Gehäuseteils 36 auf. Der Silikontropfen 62 gelangt in Kontakt mit der Innenseite des Gehäuseteils 37 und wird flach gedrückt. Schließlich wird der Innenraum des Steckers 24 mit einer Vergußmasse aus elektrisch isolierendem Material, vorzugsweise Kunststoff, ausgegossen. Die Vergußmasse erstarrt nachfolgend, so daß die Gehäuseteile 36,37 und die Vergußmasse einen festen Verbund bilden. Die Silikonmasse 62 verhindert, daß das Entstörelement 38 bzw. 40 an dem diese angeordnet ist, an seinem gesamten Umfang von der Vergußmasse bzw. den Gehäuseteilen 36,37 umgeben ist. Bei einer Erwärmung des Entstörelements 38 bzw. 40 kann sich dieses unter elastischer Zusammendrückung der Silikonmasse 62 ausdehnen. Außerdem ist das von der Silikonmasse 62 teilweise umgebene Entstörelement 38 bzw. 40 nicht starr mit dem Stecker 24 verbunden, sondern durch die Silikonmasse 62 von diesem entkoppelt.The assembly of the plug 24 is explained below. First, as already described above, the structural unit consisting of the printed circuit board 42, the interference suppression elements 38, 40 and the contact elements 44, 46 is produced. This assembly is inserted into the housing part 36. In at least one of the interference-suppression elements 38, 40, a drop 62 of a mass of a permanently elastic plastic, preferably silicone, is applied to at least a part of its circumference on its side facing upward in the opening of the housing part 36. Subsequently, the housing part 37 is assembled by placing it on the housing part 36 with its essentially flat inside facing the printed circuit board 42, so that it closes the opening thereof. The cables 25 pass through the U-shaped recesses 61 of the housing part 37. The plug-in sleeve 44 of the printed circuit board 42 passes through the opening 52 of the cylindrical section 50 of the housing part 37 and is then arranged inside the collar 56. One leg of the second contact element 46 of the printed circuit board 42 enters between two mutually associated male connectors 58, with the same being resiliently spread apart, so that the arms 59 are electrically conductively connected to the second contact element 46. In its end position, the housing part 37 lies on the edge of the opening of the housing part 36. The silicone drop 62 comes into contact with the inside of the housing part 37 and is pressed flat. Finally, the interior of the plug 24 is electrically sealed with a sealing compound insulating material, preferably plastic, poured out. The casting compound subsequently solidifies, so that the housing parts 36, 37 and the casting compound form a firm bond. The silicone compound 62 prevents the interference suppressor 38 or 40 on which it is arranged from being surrounded on its entire circumference by the casting compound or the housing parts 36, 37. When the interference suppression element 38 or 40 is heated, it can expand with the silicone mass 62 being compressed elastically. In addition, the interference suppression element 38 or 40, which is partially surrounded by the silicone compound 62, is not rigidly connected to the plug 24, but is decoupled from it by the silicone compound 62.

Der Endbereich des zylinderförmigen Abschnitts 50 des Gehäuseteils 37 weist als Mittel zur Befestigung des Steckers 24 am Sockel 26 der Gasentladungslampe 22 ausgehend von dessen Stirnende zwei einander diametral gegenüberliegende Schlitze 64 auf, die zunächst schräg zur Längsachse 51 des Abschnitts 50 verlaufen und in ihrem Endbereich etwa senkrecht zur Längsachse 51 verlaufen. Bei der Montage des Steckers 24 auf der Gasentladungslampe 22 tritt jeweils ein Stift 35 des Sockels 26 der Lampe 22 in einen Schlitz 64 ein und durch Drehen des Steckers 24 wird dieser auf dem Sockel 26 verriegelt, indem die Stifte 35 in den senkrecht zur Längsachse 51 verlaufenden Endbereich der Schlitze 64 gelangen. Die Schlitze 64 können in ihrem Endbereich außerdem mit jeweils einer Rastsenke 65 versehen sein, in die der jeweilige Stift 35 einrastet. Bei der Montage des Steckers 24 tritt der Steckanschluß 32 in das erste Kontaktelement 44 des Steckers in Form der Steckhülse unter federnder Aufweitung derselben in diese ein. Außerdem gelangen die Arme 59 unter Vorspannung in Anlage an dem Leiterring 34, so daß die beiden Anschlußleitungen 25 mit jeweils einer Elektrode der Gasentladungslampe 22 verbunden sind. Der Kragen 56 kann von einem elastischen Dichtelement 57 umgeben sein, das in die Vertiefung 30 des Lampensockels 26 eintritt.The end region of the cylindrical section 50 of the housing part 37 has, as a means for fastening the plug 24 to the base 26 of the gas discharge lamp 22, starting from its front end, two diametrically opposed slots 64 which initially run obliquely to the longitudinal axis 51 of the section 50 and approximately in their end region run perpendicular to the longitudinal axis 51. When the plug 24 is mounted on the gas discharge lamp 22, a pin 35 of the base 26 of the lamp 22 enters a slot 64 and the plug 24 is locked on the base 26 by turning the pin 35 in the direction perpendicular to the longitudinal axis 51 reach the end region of the slots 64. The slots 64 can also be provided in their end region with a notch 65, into which the respective pin 35 engages. When assembling the plug 24, the plug connection 32 enters the first contact element 44 of the plug in the form of the plug-in sleeve with a resilient widening thereof. In addition, the arms 59 come under prestress into contact with the conductor ring 34, so that the two connecting lines 25 are each connected to an electrode of the gas discharge lamp 22. The collar 56 can be of one be surrounded elastic sealing element 57, which enters the recess 30 of the lamp base 26.

Abweichend zum vorstehend beschriebenen ersten Ausführungsbeispiel kann bei einem in Figur 6 dargestellten zweiten Ausführungsbeispiel des Steckers 124 die Leiterplatte 42 auch entfallen, wobei dann die Entstörelemente 138,140 direkt in einem Gehäuseteil 137 angeordnet sind und über ihre elektrischen Verbindungen während des Zusammenbaus des Steckers 124 gehalten werden. Das Gehäuse des Steckers 124 kann dabei einteilig ausgebildet sein und besteht nur aus dem Gehäuseteil 137. Beim dargestellten zweiten Ausführungsbeispiel sind das Kontaktelement 144 in Form der Steckhülse und das Kontaktelement mit den nach außen ragenden Armen 159 im Gehäuseteil 137 gehalten. Die Steckhülse 144 und die Arme 159 ragen auf der Innenseite des Gehäuseteils 137 heraus und dort sind an diese elektrische Leitungen 170 zur Verbindung mit den Entstörelementen 138,140 angelötet. Die Kabel 25 ragen mit ihren Enden ebenfalls durch das Gehäuseteil 137 auf dessen Innenseite hindurch und sind dort über elektrische Leitungen mit den Entstörelementen 138,140 verlötet. Zwischen wenigstens einem Teil des Umfangs von wenigstens einem der Entstörelemente 138,140 und dem an dieses angrenzenden Gehäuseteil 137 ist wie beim ersten Ausführungsbeispiel eine dauerhaft elastische Masse 162, vorzugsweise Silikon, aufgebracht. Das Gehäuseteil 137 wird abschließend mit einer Vergußmasse aus elektrisch isolierendem Material, vorzugsweise Kunststoff, ausgefüllt. Das Gehäuseteil 137 ist ansonsten wie das Gehäuseteil 37 beim ersten Ausführungsbeispiel ausgebildet.In a departure from the first exemplary embodiment described above, the printed circuit board 42 can also be omitted in a second exemplary embodiment of the plug 124 shown in FIG. 6, in which case the interference suppression elements 138, 140 are arranged directly in a housing part 137 and are held via their electrical connections during the assembly of the plug 124. The housing of the plug 124 can be formed in one piece and consists only of the housing part 137. In the second exemplary embodiment shown, the contact element 144 in the form of the plug-in sleeve and the contact element with the outwardly projecting arms 159 are held in the housing part 137. The plug sleeve 144 and the arms 159 protrude on the inside of the housing part 137 and there are soldered to these electrical lines 170 for connection to the interference suppression elements 138, 140. The ends of the cables 25 likewise protrude through the housing part 137 on the inside thereof and are soldered there to the interference suppression elements 138, 140 via electrical lines. A permanent elastic mass 162, preferably silicone, is applied between at least part of the circumference of at least one of the interference suppression elements 138, 140 and the housing part 137 adjoining this, as in the first exemplary embodiment. The housing part 137 is finally filled with a potting compound made of electrically insulating material, preferably plastic. The housing part 137 is otherwise designed like the housing part 37 in the first exemplary embodiment.

Die Kabel 25 verlaufen wie in Figur 1 dargestellt nach dem Austritt aus dem Gehäuse 36,37 bzw. 137 des Steckers 24 bzw. 124 zum Reflektor 12 hin. Es kann eine Umlenkeinrichtung 80 am Stecker 24 bzw. 124 angeordnet werden, durch die die Kabel 25 so umgelenkt werden, daß sie nach dem Austritt aus dem Gehäuse 36,37 bzw. 137 vom Reflektor 12 weg verlaufen. Die Umlenkeinrichtung 80 kann mit dem Gehäuse 36 oder 37 bzw. 137 des Steckers 24 bzw. 124 verbunden sein oder einstückig mit diesem ausgebildet sein.As shown in FIG. 1, the cables 25 run to the reflector 12 after exiting the housing 36, 37 or 137 of the plug 24 or 124. A deflection device 80 can be arranged on the plug 24 or 124, through which the cable 25 are deflected so that they run away from the reflector 12 after exiting the housing 36, 37 or 137. The deflection device 80 can be connected to the housing 36 or 37 or 137 of the plug 24 or 124 or be formed in one piece with it.

Claims (6)

Stecker zur Kontaktierung einer Gasentladungslampe, der wenigstens ein elektrisches Entstörelement (38,40;138,140) enthält, durch das eine Ausbreitung von durch die Gasentladungslampe (22) während ihres Betriebs erzeugter elektromagnetischer Störstrahlung entlang mit dem Stecker (24;124) verbundener Anschlußleitungen (25) verhindert wird, wobei der Stecker (24;124) ein Gehäuse (36,37;137) aus elektrisch isolierendem Material aufweist, in dem das wenigstens eine Entstörelement (38,40;138,140) angeordnet ist und das zumindest teilweise mit einer Vergußmasse aus einem elektrisch isolierenden Material ausgefüllt ist, dadurch gekennzeichnet, daß zwischen wenigstens einem Teil des Umfangs des wenigstens einen Entstörelements (38,40;138,140) und dem an dieses angrenzenden Gehäuse (36,37;137) und/oder der an dieses angrenzenden Vergußmasse eine Masse (62;162) aus einem dauerhaft elastischen Material angeordnet ist.Plug for contacting a gas discharge lamp, which contains at least one electrical interference suppression element (38, 40; 138, 140), by means of which a spread of electromagnetic interference radiation generated by the gas discharge lamp (22) during its operation along connecting lines (25) connected to the plug (24; 124) ) is prevented, the plug (24; 124) having a housing (36, 37; 137) made of electrically insulating material, in which the at least one interference suppression element (38, 40; 138, 140) is arranged and which is at least partially made of a potting compound an electrically insulating material, characterized in that between at least part of the circumference of the at least one interference suppression element (38, 40; 138, 140) and the housing (36, 37; 137) adjoining it and / or the potting compound adjoining it Mass (62; 162) made of a permanently elastic material. Stecker nach Anspruch 1, dadurch gekennzeichnet, daß die Masse (62;162) aus einem dauerhaft elastischen Kunststoff, vorzugsweise Silikon besteht.Plug according to claim 1, characterized in that the mass (62; 162) consists of a permanently elastic plastic, preferably silicone. Stecker nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß mehrere Entstörelemente (38,40) vorgesehen sind, die auf einer Leiterplatte (42) angeordnet sind.Plug according to claim 1 or 2, characterized in that a plurality of interference suppression elements (38, 40) are provided which are arranged on a printed circuit board (42). Stecker nach Anspruch 3, dadurch gekennzeichnet, daß die Leiterplatte (42) mit den Entstörelementen (38,40) eine vormontierbare Baueinheit bildet, die in das Gehäuse (36,37) einsetzbar ist, wobei im Gehäuse (37) wenigstens ein elektrisches Kontaktelement (58) zur Kontaktierung der Gasentladungslampe (22) gehalten ist, mit dem wenigstens ein an der Leiterplatte (42) angeordnetes Kontaktelement (46) beim Einsetzen der Leiterplatte (42) in das Gehäuse (36,37) in Verbindung gelangt.Plug according to Claim 3, characterized in that the printed circuit board (42) with the interference suppression elements (38, 40) forms a preassembled structural unit which can be inserted into the housing (36, 37), at least one electrical contact element (37) in the housing (37) 58) for contacting the gas discharge lamp (22), with which at least one contact element (46) arranged on the printed circuit board (42) comes into contact when the printed circuit board (42) is inserted into the housing (36, 37). Stecker nach Anspruch 4, dadurch gekennzeichnet, daß an der Leiterplatte (42) ein weiteres Kontaktelement (44) angeordnet ist, das durch eine Öffnung (52) im Gehäuse (37) nach außen ragt und direkt zur Kontaktierung der Gasentladungslampe (22) dient.Plug according to claim 4, characterized in that a further contact element (44) is arranged on the printed circuit board (42), which protrudes outwards through an opening (52) in the housing (37) and is used directly for contacting the gas discharge lamp (22). Stecker nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß das Gehäuse zweiteilig ausgebildet ist, daß die Leiterplatte (42) in ein erstes Gehäuseteil (36) einsetzbar ist, in dem das Kontaktelement (58) gehalten ist, an dem die Leiterplatte (42) mit ihrem Kontaktelement (46) in Verbindung gelangt und daß ein zweites Gehäuseteil (37) mit dem ersten Gehäuseteil (36) zur Abdeckung der Leiterplatte (42) verbindbar ist und gegebenenfalls die Öffnung (52) zum Durchtritt des weiteren Kontaktelements (44) der Leiterplatte (42) aufweist.Plug according to claim 4 or 5, characterized in that the housing is formed in two parts, that the circuit board (42) can be inserted into a first housing part (36) in which the contact element (58) is held, on which the circuit board (42) comes into contact with its contact element (46) and that a second housing part (37) can be connected to the first housing part (36) for covering the printed circuit board (42) and, if appropriate, the opening (52) for the passage of the further contact element (44) of the printed circuit board (42).
EP95119114A 1995-02-22 1995-12-05 Socket for connecting a gas discharge lamp Ceased EP0728986A1 (en)

Applications Claiming Priority (2)

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DE29502977U DE29502977U1 (en) 1995-02-22 1995-02-22 Plug for contacting a gas discharge lamp
DE29502977U 1995-02-22

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EP0728986A1 true EP0728986A1 (en) 1996-08-28

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EP95119114A Ceased EP0728986A1 (en) 1995-02-22 1995-12-05 Socket for connecting a gas discharge lamp

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JP (1) JPH08264245A (en)
DE (1) DE29502977U1 (en)

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WO1998027627A1 (en) * 1996-12-16 1998-06-25 The Whitaker Corporation Apparatus for making contact with a part having a base, in particular a gas discharge lamp
CN103016778A (en) * 2011-09-26 2013-04-03 中国科学院宁波材料技术与工程研究所 Flow regulating valve and water-gas mixing device thereof

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FR2784260B1 (en) * 1998-10-01 2000-12-22 Valeo Electronique WELDLESS CONTACTS BETWEEN CUT TRACKS AND A PRINTED CIRCUIT
US6297583B1 (en) 1998-10-08 2001-10-02 Federal-Mogul World Wide, Inc. Gas discharge lamp assembly with improved r.f. shielding
FR2795691B1 (en) 1999-07-02 2001-08-17 Valeo Vision MOTOR VEHICLE PROJECTOR EQUIPPED WITH A DISCHARGE LAMP AND IMPROVED ELECTROMAGNETIC SHIELDING MEANS
WO2002079893A1 (en) * 2001-03-28 2002-10-10 Arcelik A.S. Domestic appliance knob
JP4547837B2 (en) * 2001-06-15 2010-09-22 東洋電装株式会社 Electrical element
DE102004043107A1 (en) * 2004-09-07 2006-03-09 Hella Kgaa Hueck & Co. Headlight for motor vehicle, has electrically conducting contact ring that directly lies at rear side of reflector, such that electromagnetic waves, emitted in preset frequency range of lighting device and gas discharge lamp, are shielded

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DE4231538A1 (en) * 1991-09-24 1993-04-01 Koito Mfg Co Ltd AUTO FRONT LIGHT
DE4310307A1 (en) 1993-03-30 1994-10-06 Bosch Gmbh Robert Headlights for vehicles

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DE4231538A1 (en) * 1991-09-24 1993-04-01 Koito Mfg Co Ltd AUTO FRONT LIGHT
DE4310307A1 (en) 1993-03-30 1994-10-06 Bosch Gmbh Robert Headlights for vehicles

Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO1998027627A1 (en) * 1996-12-16 1998-06-25 The Whitaker Corporation Apparatus for making contact with a part having a base, in particular a gas discharge lamp
CN103016778A (en) * 2011-09-26 2013-04-03 中国科学院宁波材料技术与工程研究所 Flow regulating valve and water-gas mixing device thereof
CN103016778B (en) * 2011-09-26 2014-10-22 中国科学院宁波材料技术与工程研究所 Flow regulating valve and water-gas mixing device thereof

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JPH08264245A (en) 1996-10-11
DE29502977U1 (en) 1996-06-20
US5677596A (en) 1997-10-14

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