EP0469430A2 - Lampe électrique - Google Patents

Lampe électrique Download PDF

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Publication number
EP0469430A2
EP0469430A2 EP91112281A EP91112281A EP0469430A2 EP 0469430 A2 EP0469430 A2 EP 0469430A2 EP 91112281 A EP91112281 A EP 91112281A EP 91112281 A EP91112281 A EP 91112281A EP 0469430 A2 EP0469430 A2 EP 0469430A2
Authority
EP
European Patent Office
Prior art keywords
aprons
electric lamp
sleeve
lamp according
lamp holder
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.)
Withdrawn
Application number
EP91112281A
Other languages
German (de)
English (en)
Other versions
EP0469430A3 (en
Inventor
Walter Schönherr
Alfred Braun
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 EP0469430A2 publication Critical patent/EP0469430A2/fr
Publication of EP0469430A3 publication Critical patent/EP0469430A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01K1/44—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp directly applied to, or forming part of, the vessel
    • 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
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0005—Fastening of light sources or lamp holders of sources having contact pins, wires or blades, e.g. pinch sealed lamp

Definitions

  • the invention relates to an electric lamp according to the preamble of claim 1.
  • Such lamps are known from DE-GM 85 22 797. They are mainly used in automotive headlights. The lamps in the vehicle are exposed to vibrations, which can damage the filament suspension. It is therefore important to ensure that the lamp in the headlight is as vibration-proof as possible. In addition, these lamps have relatively high temperatures during operation on the plastic base, so that there is a risk that plastic material will evaporate from the base into the headlight and the quality of the reflector will be impaired.
  • the invention has for its object to provide an electric lamp that offers improved protection against damage to the filament suspension by vibrations and has low operating temperatures at the base, so that evaporation of plastic material is prevented.
  • the integration of the attenuators in the webs of the lamp holder results in reduced heat dissipation from the warm lamp to the base and an increase in the radiation area for the heat generated in the lamp.
  • the thermal conductivity of the lamp holder can be reduced further by means of recesses in the aprons, so that the operating temperature at the base is even lower.
  • the shielding plates which are molded onto the sleeve of the lamp holder and on the one hand protect the socket from direct radiation from the lamp and on the other hand improve the heat radiation of the lamp holder, have a lowering influence on the operating temperature of the lamp holder.
  • the lamp holder is preferably composed of two identical parts because this simplifies its production.
  • FIG 1 a two-filament halogen lamp with a lamp holder 1 made of stainless steel is shown according to a first embodiment.
  • the lamp bulb 2 of the incandescent lamp is inserted with its pinch foot 3 into the sleeve 4, which is a component of the lamp holder 1.
  • Three power leads 5 are led out of the pinch foot 3 of the lamp.
  • the lamp holder 1 is connected to a base part 6 made of plastic. Figure 1 shows this base part 6 only in part.
  • the lamp holder 1 is composed of two identical halves 1 a, 1 b, one of which is shown in FIGS. 2 and 3.
  • Each lamp support half 1 a, 1 consists of a sleeve part 4a, 4b, to which an apron 8a, 8b is molded via a web 7a, 7b.
  • the aprons 8a, 8b each have a recess 9 which extends over a large part of the surface of the aprons 8a, 8b.
  • the openings 10 in the aprons 8a, 8b serve to fasten them to the base part 6 by means of high-frequency welding.
  • the webs 7a, 7b each have an attenuator 11 a, 11 for mechanical vibrations, which is also made of a relatively poorly heat-conducting stainless steel.
  • the damping member 11a consists of two support elements 12a which are bent back with respect to the apron 8a or with respect to the sleeve 4, both of which are connected to one another by a central web element 13a.
  • these two carrier elements 12a have a U-shaped profile in a side view of the lamp carrier 1.
  • the legs of this U-profile are formed by the two support elements 12a det, while the central web element 13a represents the bottom of the U-shape.
  • the distance between the two carrier elements 12a is approximately 1.5 mm, while their length measures approximately half the height of the sleeve 4.
  • Two further web elements 14a connect the damping member 11 to the sleeve half 4a and to the skirt 8a.
  • the sheet thickness of apron 8a, attenuator 11 and web 7a is approximately 0.5 mm.
  • the width of the damping members 11 a, 11 b, the webs 7a, 7b and the aprons 8a, 8b corresponds approximately to the width of the presser foot 3.
  • the attenuator 11b is constructed.
  • Each cuff half 4a, 4b can essentially be understood as two adjoining side walls of a cuboid, on the edges of which a triple tongue 15a, 15b and a double tongue 16a, 16b are formed.
  • the tongue triple 15a is only indicated by dashed lines in FIG. 2, since it is covered in the side view by a wall of the sleeve half 4a.
  • the tongue doublet 16a of the sleeve half 4a engages in the spaces between the tongue triplet 15b of the sleeve half 4b (FIG. 4).
  • recesses 17 are provided in the cuff wall, into which projections formed on the squeezing foot 3 engage.
  • FIGS. 5 and 6 A second exemplary embodiment is shown in FIGS. 5 and 6. This differs from the first embodiment by a different design of the damping members 11a ', 11b'.
  • a flat shielding plate 18a ', 18b' is formed on each sleeve half 4a ', 4b', which protects the plastic base part 6 from direct radiation from the lamp and serves to improve the heat radiation.
  • Both shielding plates 18a ', 18b' have approximately the shape of a half ellipse. They are molded onto the upper edge of the sleeve 4 facing the lamp bulb 2 and form an angle of approximately 25 ° with the surface defined by this upper edge of the sleeve wall.
  • the damping members 11a ', 11b' in the second exemplary embodiment each consist of a support element which is bent back relative to the aprons 8a 'or 8b' and which runs essentially parallel to a side wall of the sleeve half 4a 'or 4b'.
  • the length of the carrier elements 11 a ', 11 b' corresponds approximately to the height of the sleeve halves 4a ', 4b'.
  • These carrier elements 11a ', 11b' are connected to the aprons 8a ', 8b' and the cuff halves 4a ', 4b' via web elements 14a ', 14b'.
  • the length of these web elements 14a ', 14b' is approximately 3.5 mm, while the sheet thickness of the skirts 8a ', 8b', the webs 7a ', 7b' and the damping members 11a ', 11b' measures 0.5 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (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)
EP19910112281 1990-08-02 1991-07-22 Electric lamp Withdrawn EP0469430A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9011351U 1990-08-02
DE9011351U DE9011351U1 (de) 1990-08-02 1990-08-02 Elektrische Lampe

Publications (2)

Publication Number Publication Date
EP0469430A2 true EP0469430A2 (fr) 1992-02-05
EP0469430A3 EP0469430A3 (en) 1992-09-23

Family

ID=6856172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910112281 Withdrawn EP0469430A3 (en) 1990-08-02 1991-07-22 Electric lamp

Country Status (6)

Country Link
US (1) US5153480A (fr)
EP (1) EP0469430A3 (fr)
JP (1) JPH0498261U (fr)
KR (1) KR970005076Y1 (fr)
CA (1) CA2048324A1 (fr)
DE (1) DE9011351U1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9011351U1 (de) * 1990-08-02 1990-10-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Elektrische Lampe
US5765941A (en) * 1993-07-16 1998-06-16 Central Tools, Inc. Fluorescent lamp and method of manufacturing same
EP0920091A3 (fr) * 1997-11-26 2000-03-08 Grote Industries, Inc. Méthode d'assemblage d'une lampe à incandescence pour véhicules
DE19860588C2 (de) * 1998-12-29 2001-03-01 Schnippering Hugo Gmbh Co Kg Lampenfassung aus Isolierstoff für H 7-Lampen
DE602004026316D1 (de) * 2003-08-15 2010-05-12 Philips Intellectual Property Fahrzeug-lampe mit vergrösserter thermischer stabilität
DE10345060A1 (de) * 2003-09-26 2005-04-14 Robert Bosch Gmbh Verbindungselement für eine elektrische Maschine
WO2006016314A1 (fr) * 2004-08-05 2006-02-16 Philips Intellectual Property & Standards Gmbh Lampe presentant un amortissement des vibrations ameliore
JP2006086020A (ja) * 2004-09-16 2006-03-30 Ushio Inc ベース付ランプ
DE102015208246A1 (de) * 2015-05-05 2016-11-10 Osram Gmbh Lampe

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825666A1 (de) * 1978-06-12 1979-12-20 Philips Patentverwaltung Elektrische gluehlampe oder entladungslampe
US4463278A (en) * 1982-05-21 1984-07-31 General Electric Company Lamp unit having accurately positioned filament
DE8522797U1 (de) * 1985-08-07 1985-10-31 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Kittlos gesockelte elektrische Lampe
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
US4743803A (en) * 1987-05-15 1988-05-10 General Electric Company General service tungsten-halogen incandescent lamp having improved filament shock resistance
US4740876A (en) * 1987-11-03 1988-04-26 Truck-Lite Co., Inc. Shock absorbing mount for lamp bulbs
DE8907108U1 (de) * 1989-06-09 1989-08-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Kittlos gesockelte elektrische Lampe
US5041955A (en) * 1989-11-20 1991-08-20 Gte Products Corporation Vibration resistant lamp base
DE9011351U1 (de) * 1990-08-02 1990-10-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Elektrische Lampe

Also Published As

Publication number Publication date
CA2048324A1 (fr) 1992-02-03
EP0469430A3 (en) 1992-09-23
KR920005318U (ko) 1992-03-26
DE9011351U1 (de) 1990-10-25
JPH0498261U (fr) 1992-08-25
US5153480A (en) 1992-10-06
KR970005076Y1 (ko) 1997-05-22

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