EP0331042A2 - Lampe électrique à culot attaché sans mastic - Google Patents

Lampe électrique à culot attaché sans mastic Download PDF

Info

Publication number
EP0331042A2
EP0331042A2 EP89103284A EP89103284A EP0331042A2 EP 0331042 A2 EP0331042 A2 EP 0331042A2 EP 89103284 A EP89103284 A EP 89103284A EP 89103284 A EP89103284 A EP 89103284A EP 0331042 A2 EP0331042 A2 EP 0331042A2
Authority
EP
European Patent Office
Prior art keywords
base
electric lamp
lamp according
tabs
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89103284A
Other languages
German (de)
English (en)
Other versions
EP0331042A3 (en
EP0331042B1 (fr
Inventor
Alfred Braun
Peter Helbig
Hermann Steiner
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0331042A2 publication Critical patent/EP0331042A2/fr
Publication of EP0331042A3 publication Critical patent/EP0331042A3/de
Application granted granted Critical
Publication of EP0331042B1 publication Critical patent/EP0331042B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H01J5/56—Shape of the separate part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap

Definitions

  • the invention is based on a lamp without a cement according to the preamble of claim 1.
  • EP-PA 85 201 643 proposes a base part made of synthetic material, which, however, is composed of two parts that have to be connected by means of ultrasound. One of these parts is designed as a hollow cylinder, while the second forms the bottom.
  • the hollow cylindrical part surrounds the cylindrical base sleeve and is mechanically connected to it by laterally attached, interlocking notches and projections.
  • the contact lugs are ultrasonically welded to the base part.
  • the object of the invention is a metal part-insulating part base in a generic lamp To provide, which is characterized by simple design and simple and secure connection options.
  • a heat-resistant plastic (duroplastic, thermoplastic) can advantageously be used as the insulating material for the base part because of the ease of processing and the low weight.
  • the cylindrical base sleeve has an inwardly bent edge at its end facing the base base.
  • the width of this edge is advantageously about 10% of the diameter of the base sleeve in order to provide a sufficient contact surface for the exact alignment of the base base. A a larger width would lead to space problems in relation to the power supply lines.
  • this edge is divided into individual circular ring sections, the spacing from one another advantageously being only slightly greater than the arc length of the fixing lugs of the base base.
  • the base sleeve can be placed on the plateau zone of the base base in such a way that the fixing lugs first protrude into the base sleeve in the space between the tabs.
  • a number of four tabs or fixing lugs is advantageous, since then as many fastening points as possible on the one hand, and on the other hand still sufficient contact surfaces.
  • the base sleeve is then turned against the base base, with the fixing lugs catching the tabs.
  • a particularly secure and permanent connection is achieved through a number of measures.
  • the thickness of the tabs is deliberately chosen to be greater than the distance between the plateau zone and the underside of the fixing lug, so that a non-positive connection is created when twisting, as it were by clamping the tab between the plateau zone and the underside of the fixing lugs.
  • each fixing lug is chamfered on the side.
  • part (or all) of the elevations on the plateau zone serve as a stop.
  • the height of the elevations is to be carefully selected so that the tabs can be twisted over the elevations without difficulty, on the other hand, the function as a stop remains ensured.
  • the base sleeve itself is equipped in the recessed area between the tabs with an inwardly bent edge zone, the width of which is, however, significantly smaller than that of the tabs and the inside diameter of which is selected such that the individual edge zone sections after rotation have each been attached to the outer arc length of the Circular ring sections tightly fit surveys.
  • the design of the base as a cylindrical solid body which is very easy to manufacture, is particularly advantageous in the case of relatively small headlight lamps (so-called H1 or H3 lamps) which have only one lamp.
  • headlight lamps so-called H1 or H3 lamps
  • the larger mass compared to a plinth floor with an inner cavity hardly plays a role here.
  • the full body makes it easier Formation of a collar, the plateau zone of which provides a wide contact surface for the base sleeve.
  • plastic thermoplastic
  • EP-PA 85 201 643 or the insertion of the metal parts into a press mold and subsequent pressing with thermosetting plastic base parts - as is usual with the larger H4 lamps is (DE-GM 82 01 536) - can advantageously be dispensed with. Rather, the "meat" of the full body can be used to achieve a purely mechanical connection. This reduces the long process times and also solves the space problems that would arise with small lamps with these known techniques.
  • the base base At its end remote from the piston, the base base has axial longitudinal slots which are adapted to the width of the contact lugs and which accommodate approximately one third of the length of the contact lugs. Over this length, the contact lugs are equipped with sawtooth-like projections on their narrow sides, so that the projections spread out on the narrow sides of the longitudinal slots.
  • a metal sleeve can be used as a holding element, similar to an embodiment shown in DE-GM 85 22 797. However, the metal sleeve described there was connected to a plastic base while it is being welded to the metal sleeve here.
  • a car headlight lamp which is referred to in technical terms as an H3 lamp. It has a cylindrical piston 1 made of tempered glass (or quartz glass), with a pump tip 2 molded onto it at one end. The other end of the piston 1 is closed in a vacuum-tight manner with a pinch seal 3.
  • a double-coiled tungsten filament 4 is held transversely to the lamp axis by means of two current leads 5, 6 made of molybdenum.
  • the power supply lines 5, 6 are melted directly into the pinch seal 3.
  • the piston which is filled with an inert gas and with a halogen additive, is at its pinch seal 3 from a holding element 7 made of metal (stainless steel) worn.
  • the holding element 7 is received in a metallic base sleeve 9 (stainless steel).
  • the socket sleeve 9 which is designed as a hollow cylinder, has four punctiform support cams 10 distributed on its inside over the circumference of a circle, to which the holding element 7 is fastened by means of laser welding.
  • the base sleeve 9 is formed at the end near the piston, an adjustment ring 11 which has two differently shaped notches to help with correct positioning.
  • the plane of the adjusting ring 11 runs transversely to the lamp axis.
  • a base base 12 made of plastic (Ultem) is arranged at the end of the base sleeve remote from the piston. It consists of a cylindrical solid body with approximately the same diameter (14 mm) as the base sleeve. Compared to this, the base diameter of an H4 lamp (which is equipped with two lamps) is considerably larger (20 mm). There is a similar size difference with the piston diameter. It is approx. 12.5 mm for the H3 lamp instead of approx. 17 mm for an H4 lamp.
  • Two contact lugs 13 (made of stainless steel or non-ferrous metal) are inserted into the end of the base 12 remote from the bulb parallel to the lamp axis.
  • Each contact lug 13 is electrically conductively connected to the end of a power supply led out of the pinch seal 3 via an eyelet 14 bent at right angles.
  • the semicircular eyelets 14 are fitted in a similarly shaped recesses 15 in a rectangular depression 16 at the end of the base base 12 for better protection against mechanical damage.
  • the individual parts of the holder for the glass bulb will be described in more detail below.
  • FIGS. 3a and b The structure of a shell half 8 of the holding element 7 is explained in more detail in FIGS. 3a and b. It has a rectangular base body 17 which bears on a broad side of the pinch seal and is fastened there by means of two rectangular openings 18 which cooperate with projecting pins on the pinch seal. On one side of the base body 17 three spaced tongues 20 are angled at an extension 19, while on the opposite side of the base body 17 initially has an extension 21, on the two tabs 22 are formed laterally so that they are identical to the tongues of a second Half of the shell can interlock.
  • the two shell halves are connected to form a sleeve completely surrounding the pinch seal, the tongues of one shell half being bent around the extension of the other shell half and at the same time the tabs being bent around the attachment of the tongues (see FIG. 1 ).
  • a web 23 is integrally formed on the piston-side end of the base body 17 and bent back outwards by 180 °.
  • the web 23 opens into a resilient apron 24, which is bulged in the shape of a cone and thus describes a circular section at its extended end, the radius of curvature of which corresponds to the inner radius the cylindrical base sleeve 9 is adapted.
  • This end is advantageously divided into two tabs 25 with a stiffened edge.
  • the finished holding element 7 thus offers a total of four circular sections in the form of the stiffened edges of the tabs 25, on which the support cams 10 of the base sleeve 9 are welded.
  • the structure of the base sleeve 9 shows Figure 4a and b.
  • Base sleeve 9 is formed on its distal end an inwardly angled edge zone 27, which is thus aligned transversely to the lamp axis.
  • This edge zone 27 is very narrow, its inner diameter is only slightly smaller (by 3%) than the inner diameter (dashed) of the base sleeve 9.
  • four tabs 28 are formed symmetrically on the edge zone 27, which, as circular ring sections with a radial width of approx.
  • the edge zone extends the edge zone inwards.
  • the inner diameter of the underlying circular ring is approximately 80% of the outer diameter of the base sleeve 9.
  • the ratio between the arc length of the tabs and the arc length of the free edge zone between them is approximately 3: 1.
  • the tabs 28, which have the same thickness as the wall of the base sleeve ( 0.5 mm) are used to fasten the base base 12.
  • the base base 12 as shown in FIGS. 5a-d, has an annular circumferential and extending in the axial direction on the end of the cylindrical solid body 29 facing the base sleeve 9 Collar 30 on.
  • the outside diameter of the Collar 30 is reduced to approximately 80% of the diameter of the solid body 29 and is selected such that it is generously adapted to the inner diameter of the tabs 28 on the base sleeve 9.
  • the collar 30 is divided into eight free-standing sections 31, 32 (FIG. 5c), with short sections 31 and long sections 32 alternating.
  • the four short collar sections 31, which in comparison to the remaining four sections 32 have an arc length shortened by one third, are equipped with a fixing nose 33 projecting outward in a ramp-like manner, the ramp height being formed on the lower edge of the fixing nose.
  • the distance of the lower edge of the fixing lug 33 from the region of the piston-side end of the solid body, which is referred to as the plateau zone 34, and which lies outside the annular collar 30, is 0.45 mm and is thus significantly smaller than the thickness of the tabs 28 on the base sleeve 9 nevertheless to facilitate locking of the tabs 28 between the plateau zone 34 and the lower edge of the fixing lugs 33, the lower edges are chamfered on one side, this bevel 35 extending to a height which exceeds the thickness of the tabs 28.
  • an elevation 36 in the form of a circular ring section is positioned in front of a long collar section 32 in the middle between two short sections 31 on the plateau zone 34.
  • the height of the elevation 36 is 0.2 mm. Its radial width is chosen so that it is closely matched to the inner diameter of the edge zone 27 of the base sleeve and thus enables an adjustment of the base sleeve.
  • the length (or arc length) of the short collar sections 31 and the elevations 36 and the individual Sections of the edge zone 27 are matched to one another so that when the base sleeve 9 is placed on the base base 12, the fixing lugs 33 (whose length is 2.7 mm) can be inserted into the portions of the edge zone 27 and, after the rotation has taken place, the elevations 36 completely into the Free space between the tabs 28 and adapted to the inner edge of the edge zone regions 27 come to rest.
  • the arc length of the edge zone regions 27 must therefore slightly exceed the arc length of the short collar sections 31 and the elevations 36.
  • the solid body 29 also has two funnel-shaped axial bores 37 in order to pass the current leads 5, 6 coming from the lamp bulb 1. Part of the length of the bores 36 can also be designed as a common recess 38.
  • the holes 37 open at the end of the base base remote from the piston in each case in a recess 15 which is semicircular.
  • both depressions 15 are introduced together in a rectangular shaped depression 16 and separated there by a web 39.
  • axial slots 40 extend into the solid body 29, the width and thickness of which correspond to the width and thickness of the contact tabs and whose depth corresponds to approximately one third of the total length of the contact tabs 13.
  • the contact lugs 13 are mechanically fastened in the slots 40 via sawtooth-like projections 41, which are attached to the narrow sides of the contact lugs for about a third of the length (cf. FIGS. 6a, 6b). These projections 41 spread out in the slots. Those cut out from the flesh of the contact lugs 13 Soldering or welding eyes 14 are also located in this section of the contact tabs 13.
  • the production process for this lamp is shown below.
  • the holding element is first mounted on the unsocketed lamp by placing the two shell halves on the pinch seal and interlacing them.
  • the contact lugs are inserted into the base of the base and then the base sleeve is put on and locked by rotation.
  • the lamp and base are now put together loosely, with the power supply loosely inserted into the holes in the base of the base.
  • the position of the luminous element is now precisely adjusted, a three-dimensional change in position being achieved on the one hand by the depth of penetration of the holding element in the base sleeve, on the other hand by the rotation of the holding element in the base sleeve and finally, thirdly, by an inclination of the holding element relative to the base sleeve.
  • the support cams on the base sleeve and the resilient properties of the four apron tabs of the holding element are particularly useful here.
  • the final fixation is carried out by spot welding between the apron flap and the support cam, which is carried out with the aid of a laser.
  • the ends of the power supply lines protruding from the welding lugs are cut off and the contact between the eyelet and the power supply line is established by TIG welding.
  • the invention described here is particularly good for relatively small car headlights lamps with only one filament and a two-part metal-plastic base, as it is also applicable to other lamps (with and without halide filling). In particular, it is also suitable for larger car headlight lamps with two light bodies and / or for lamps with a two-part plastic base.
  • the lamp can be particularly advantageously designed as a sealing base lamp.
  • An inner encapsulation which is introduced into the recess 38, or an external encapsulation, which fills the cavity formed by the depressions 15 and the depression 16, can optionally be used here.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
EP89103284A 1988-03-03 1989-02-24 Lampe électrique à culot attaché sans mastic Expired - Lifetime EP0331042B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3806978A DE3806978A1 (de) 1988-03-03 1988-03-03 Kittlos gesockelte elektrische lampe
DE3806978 1988-03-03

Publications (3)

Publication Number Publication Date
EP0331042A2 true EP0331042A2 (fr) 1989-09-06
EP0331042A3 EP0331042A3 (en) 1990-12-19
EP0331042B1 EP0331042B1 (fr) 1994-04-27

Family

ID=6348784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103284A Expired - Lifetime EP0331042B1 (fr) 1988-03-03 1989-02-24 Lampe électrique à culot attaché sans mastic

Country Status (5)

Country Link
US (1) US4950942A (fr)
EP (1) EP0331042B1 (fr)
JP (1) JPH07109760B2 (fr)
KR (1) KR970003357B1 (fr)
DE (3) DE3806978A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384240A2 (fr) * 1989-02-24 1990-08-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique à fixation du culot sans adhésif
EP0401637A2 (fr) * 1989-06-09 1990-12-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
EP0786791A1 (fr) * 1996-01-25 1997-07-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
EP0991096A1 (fr) * 1998-09-30 2000-04-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
WO2009107064A2 (fr) * 2008-02-28 2009-09-03 Philips Intellectual Property & Standards Gmbh Porte-ampoule pour lampe d'automobile

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115381A (en) * 1989-12-21 1992-05-19 U.S. Philips Corporation Motor vehicle headlamp and reflector body for same
DE9012292U1 (de) * 1990-08-27 1990-10-31 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Kittlos gesockelte elektrische Lampe
US5239226A (en) * 1990-12-14 1993-08-24 General Electric Company Replaceable lamp assembly for automotive headlamps
US5211472A (en) * 1991-01-25 1993-05-18 U.S. Philips Corporation Electric lamp and dismantling tool for same
US5160200A (en) * 1991-03-06 1992-11-03 R & D Molded Products, Inc. Wedge-base LED bulb housing
EP0774158B1 (fr) * 1995-05-03 2000-02-09 Koninklijke Philips Electronics N.V. Lampe electrique a coiffe
US6641422B2 (en) 2000-12-06 2003-11-04 Honeywell International Inc. High intensity discharge lamp and a method of interconnecting a high intensity discharge lamp
AU2003220413A1 (en) * 2002-03-21 2003-10-08 Federal-Mogul Corporation High temperature lamp
US6976770B2 (en) * 2002-10-14 2005-12-20 Guide Corporation Hermetically sealed lamp housing and method of making
CN101167152A (zh) * 2003-08-01 2008-04-23 皇家飞利浦电子股份有限公司 灯和制造灯的方法
US7387424B2 (en) * 2004-01-30 2008-06-17 Hewlett-Packard Development Company, L.P. Replaceable lamp header for positioning a lamp within a reflector assembly
JP2006086020A (ja) * 2004-09-16 2006-03-30 Ushio Inc ベース付ランプ
DE102005009610B4 (de) * 2005-02-28 2017-03-16 Osram Gmbh Außenkolbenanordnung mit einem Befestigungselement mit Ringnut und mit einem Außenkolben mit drei nockenartigen Erhebungen und entsprechende Entladungslampe
DE102005028506A1 (de) * 2005-06-17 2006-12-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampenring, Lampe und Sockelmaschine
US7666048B1 (en) * 2008-08-01 2010-02-23 Tech Patent Licensing, Llc Method for securing a miniature bulb in a holder
US9651214B2 (en) 2015-04-02 2017-05-16 Tslc Corporation Light emitting diode (LED) bulb and lighting system having high and low beams
US10256217B2 (en) 2017-05-29 2019-04-09 Tslc Corp. Light emitting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179524A1 (fr) * 1984-10-12 1986-04-30 Koninklijke Philips Electronics N.V. Lampe électrique à culot
EP0212414A2 (fr) * 1985-08-07 1987-03-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique à fixation du culot sans adhésif
US4769574A (en) * 1986-08-04 1988-09-06 Koito Seisakusho Co., Ltd. Incandescent lamp with a metal coupling to a plastic lamp base for automotive headlamp and like lighting applications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100448A (en) * 1977-05-02 1978-07-11 General Electric Company Lamp and socket assembly
DE8201536U1 (de) * 1982-01-22 1983-06-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Halogengluehlampe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179524A1 (fr) * 1984-10-12 1986-04-30 Koninklijke Philips Electronics N.V. Lampe électrique à culot
EP0212414A2 (fr) * 1985-08-07 1987-03-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique à fixation du culot sans adhésif
US4769574A (en) * 1986-08-04 1988-09-06 Koito Seisakusho Co., Ltd. Incandescent lamp with a metal coupling to a plastic lamp base for automotive headlamp and like lighting applications

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384240A2 (fr) * 1989-02-24 1990-08-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique à fixation du culot sans adhésif
EP0384240A3 (fr) * 1989-02-24 1991-05-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique à fixation du culot sans adhésif
EP0401637A2 (fr) * 1989-06-09 1990-12-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
EP0401637A3 (fr) * 1989-06-09 1991-05-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
EP0786791A1 (fr) * 1996-01-25 1997-07-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
US6031323A (en) * 1996-01-25 2000-02-29 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Electric lamp with mechanical connection
EP0991096A1 (fr) * 1998-09-30 2000-04-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
US6259192B1 (en) 1998-09-30 2001-07-10 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Electric lamp
WO2009107064A2 (fr) * 2008-02-28 2009-09-03 Philips Intellectual Property & Standards Gmbh Porte-ampoule pour lampe d'automobile
WO2009107064A3 (fr) * 2008-02-28 2009-12-03 Philips Intellectual Property & Standards Gmbh Porte-ampoule pour lampe d'automobile

Also Published As

Publication number Publication date
JPH07109760B2 (ja) 1995-11-22
DE58907536D1 (de) 1994-06-01
DE8915377U1 (de) 1990-05-31
DE3806978A1 (de) 1989-09-14
EP0331042A3 (en) 1990-12-19
EP0331042B1 (fr) 1994-04-27
KR970003357B1 (ko) 1997-03-17
KR890015339A (ko) 1989-10-30
US4950942A (en) 1990-08-21
JPH01255155A (ja) 1989-10-12

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