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EP0728986A1 - Douille pour connecter une lampe à décharge à gaz - Google Patents

Douille pour connecter une lampe à décharge à gaz Download PDF

Info

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)
English (en)
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/fr
Ceased 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6625—Structural association with built-in electrical component with built-in single component with capacitive component
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/17—Discharge light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety 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)
EP95119114A 1995-02-22 1995-12-05 Douille pour connecter une lampe à décharge à gaz Ceased EP0728986A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29502977U DE29502977U1 (de) 1995-02-22 1995-02-22 Stecker zur Kontaktierung einer Gasentladungslampe
DE29502977U 1995-02-22

Publications (1)

Publication Number Publication Date
EP0728986A1 true EP0728986A1 (fr) 1996-08-28

Family

ID=8004325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119114A Ceased EP0728986A1 (fr) 1995-02-22 1995-12-05 Douille pour connecter une lampe à décharge à gaz

Country Status (4)

Country Link
US (1) US5677596A (fr)
EP (1) EP0728986A1 (fr)
JP (1) JPH08264245A (fr)
DE (1) DE29502977U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998027627A1 (fr) * 1996-12-16 1998-06-25 The Whitaker Corporation Dispositif permettant d'etablir un contact avec une piece pourvue d'une base, notamment une lampe a decharge gazeuse
CN103016778A (zh) * 2011-09-26 2013-04-03 中国科学院宁波材料技术与工程研究所 一种流量调节阀及其水气混合装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784260B1 (fr) * 1998-10-01 2000-12-22 Valeo Electronique Contacts sans soudure entre des pistes decoupees et un circuit imprime
US6297583B1 (en) 1998-10-08 2001-10-02 Federal-Mogul World Wide, Inc. Gas discharge lamp assembly with improved r.f. shielding
FR2795691B1 (fr) † 1999-07-02 2001-08-17 Valeo Vision Projecteur de vehicule automobile equipe d'une lampe a decharge et de moyens de blindage electromagnetique perfectionnes
WO2002079893A1 (fr) * 2001-03-28 2002-10-10 Arcelik A.S. Bouton pour appareil menager
JP4547837B2 (ja) * 2001-06-15 2010-09-22 東洋電装株式会社 電気素子
DE102004043107A1 (de) * 2004-09-07 2006-03-09 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231538A1 (de) * 1991-09-24 1993-04-01 Koito Mfg Co Ltd Autofrontlicht
DE4310307A1 (de) 1993-03-30 1994-10-06 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249825B (en) * 1990-10-15 1994-06-22 Koito Mfg Co Ltd Vehicular headlamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231538A1 (de) * 1991-09-24 1993-04-01 Koito Mfg Co Ltd Autofrontlicht
DE4310307A1 (de) 1993-03-30 1994-10-06 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998027627A1 (fr) * 1996-12-16 1998-06-25 The Whitaker Corporation Dispositif permettant d'etablir un contact avec une piece pourvue d'une base, notamment une lampe a decharge gazeuse
CN103016778A (zh) * 2011-09-26 2013-04-03 中国科学院宁波材料技术与工程研究所 一种流量调节阀及其水气混合装置
CN103016778B (zh) * 2011-09-26 2014-10-22 中国科学院宁波材料技术与工程研究所 一种流量调节阀及其水气混合装置

Also Published As

Publication number Publication date
JPH08264245A (ja) 1996-10-11
DE29502977U1 (de) 1996-06-20
US5677596A (en) 1997-10-14

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