EP0155672A2 - Lampe à décharge ayant un culot d'un côté - Google Patents

Lampe à décharge ayant un culot d'un côté Download PDF

Info

Publication number
EP0155672A2
EP0155672A2 EP85103176A EP85103176A EP0155672A2 EP 0155672 A2 EP0155672 A2 EP 0155672A2 EP 85103176 A EP85103176 A EP 85103176A EP 85103176 A EP85103176 A EP 85103176A EP 0155672 A2 EP0155672 A2 EP 0155672A2
Authority
EP
European Patent Office
Prior art keywords
base
discharge lamp
discharge vessel
lamp according
cap
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
EP85103176A
Other languages
German (de)
English (en)
Other versions
EP0155672A3 (en
EP0155672B1 (fr
Inventor
Helmut Dipl.-Ing. Grahmann (Fh)
Horst Dipl.-Ing. Wittmann (Fh)
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 EP0155672A2 publication Critical patent/EP0155672A2/fr
Publication of EP0155672A3 publication Critical patent/EP0155672A3/de
Application granted granted Critical
Publication of EP0155672B1 publication Critical patent/EP0155672B1/fr
Expired 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
    • H01J5/58—Means for fastening the separate part to the vessel, e.g. by cement
    • H01J5/60—Means for fastening the separate part to the vessel, e.g. by cement for fastening by mechanical means
    • 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 relates to a discharge lamp with a base on one side and a discharge vessel, the part of which ends in a base and is fastened there has one or more seals in the form of a pinch, and the base contains a base part and a base cap.
  • the base is fastened to the end of the discharge vessel by filling part of the cavity located in the base cap with a temperature-hardening base cement.
  • the firm, non-detachable connection is therefore only created after a certain temperature has acted on these parts to be connected and thus also on the base cement over a certain period of time.
  • This process is not only costly in the manufacture of the lamps because of the base machine which is required for this purpose and which is constantly to be heated, but is also time-consuming.
  • the use of bases which are made entirely of plastic is also severely restricted, since on the one hand the base cement requires a certain minimum temperature for curing, but on the other hand the plastic material can only withstand a certain maximum temperature without being deformed.
  • the object of the invention is to design the base of a discharge lamp with a base on one side in such a way that the time-consuming and costly handling of the base cement is no longer necessary.
  • the discharge lamp with a base on one side with the features mentioned in the preamble of the main claim is characterized in that elements are arranged within the base which are positively and non-positively connected to the part of the discharge vessel ending in the base and hold this in the base without cement.
  • the squeezing of the discharge vessel is provided on both sides and at least over part of its width with one or more depressions.
  • the bruises can also be provided on both sides and at least on part of their width with one or more elevations.
  • the elements arranged within the base are designed as resilient struts which snap into the depressions in the pinch of the discharge vessel or which rest against the pinches behind the elevations. The struts are inclined downwards towards the lower part of the base in the manner of barbs.
  • the bevel enables particularly easy insertion of the pinch at the end of a discharge vessel.
  • the struts open slightly and engage with their opposite ends in the depressions made in the pinch or behind the elevations.
  • pulling out the discharge vessel without destroying at least one of these parts is no longer possible due to the inclined position of the struts, since these automatically close more and more as the tensile force increases.
  • an elastic clamping part is squeezed inside the base, which tightly surrounds the end of the discharge vessel when pressed and additionally holds it.
  • the struts are preferably molded onto a separate clamp part which is inserted into the base.
  • the clamp part rests on the base part, while the clamp part in turn rests on the clamp part.
  • the base cap that closes the base at the top lies with pressure on the clamping part and is connected to the base part.
  • the clamping part which is subjected to pressure, acts as a holder for the discharge vessel and the clamping part.
  • the clip part is connected to the base cap by means of a snap-in connection, which in turn is then connected to the base part.
  • the lamp For the assembly of the lamp there is the advantage that it is only possible to work with prefabricated plastic parts. After assembling the individual parts, the lamp is ready immediately, since the long times for heating, hardening and cooling of the base area are no longer necessary when plinthing with plaster. In addition, heating energy is saved during plinthing compared to the conventional plinth method.
  • the lamp with the new design is thus manufactured faster and cheaper.
  • the peel strength of the base With regard to the peel strength of the base, the stability of the discharge vessel within the base, the same values are achieved as for a conventional base. Electrical safety is significantly increased through the use of plastic parts.
  • the basic concept of the new base construction can also be used for multi-ended discharge vessels. Furthermore, a comparable base in a modified form is also possible with different base types. The integration of a starter and, if necessary, a ballast is also possible when using correspondingly large base housings.
  • the base construction shown in FIGS. 1 a and 2 in different views shows a U-shaped discharge vessel 1 with the two ends melted in the form of a pinch 2.
  • the bruises 2 are each provided with a groove 3 on the edge and on both sides.
  • the melting tip of a pump tube is designated by 4.
  • the ends of the discharge vessel 1 open into a base which has a base part 5 corresponding to a socket and a base cap 6.
  • a clamp part 7 (for example Pocan) is arranged between these two parts and is provided with struts 8 on both sides facing the bruises 2 of the discharge vessel 1. These struts 8 point obliquely downwards in the direction of the base part 5 and are engaged in the grooves 3 of each pinch 2.
  • An elastic clamping part 9 (for example siloprene) is squeezed between the clamp part 7 and the base cap 6, which tightly surrounds the ends of the discharge vessel 1 in the form of an eight and is pressed against it.
  • the base part 5 is further below each end of the discharge vessel 1 with one Provide height stop 12, whereby its position is precisely determined.
  • FIG. 1b the same parts are provided with the same numbering.
  • the only difference from FIG. 1 a is that the pinch 2 of the discharge vessel 1 is provided with elevations 3 'at its end and on both sides.
  • the resilient struts 8 are directly behind the elevations 3 'and the diluted pinch 2. This achieves the same advantageous clamping effect as in the exemplary embodiment in FIG. 1a.
  • FIG. 1 An example of the type of connection between the base part 5 and the base cap 6 is shown in FIG.
  • a groove 10 is incorporated into the base part 5.
  • the base cap 6 has a nose 11 at the corresponding point, which snaps into the fillet 10.
  • Both parts are made of plastic (e.g. Pocan) by injection molding.
  • the electrical connection pins 13 (FIG. 2) of the base are fastened to the base part (5).
  • Space for a starter (not shown) is provided within the cavity 14.
  • the cams 15 (FIG. 1) serve for fastening the base lamp in a socket.

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP85103176A 1984-03-23 1985-03-19 Lampe à décharge ayant un culot d'un côté Expired EP0155672B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843410841 DE3410841A1 (de) 1984-03-23 1984-03-23 Einseitig gesockelte entladungslampe
DE3410841 1984-03-23

Publications (3)

Publication Number Publication Date
EP0155672A2 true EP0155672A2 (fr) 1985-09-25
EP0155672A3 EP0155672A3 (en) 1986-12-03
EP0155672B1 EP0155672B1 (fr) 1989-06-07

Family

ID=6231477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103176A Expired EP0155672B1 (fr) 1984-03-23 1985-03-19 Lampe à décharge ayant un culot d'un côté

Country Status (3)

Country Link
US (1) US4672263A (fr)
EP (1) EP0155672B1 (fr)
DE (2) DE3410841A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5039904A (en) * 1989-09-28 1991-08-13 General Electric Company Mount for miniature arc lamp
EP0618609A1 (fr) * 1993-03-31 1994-10-05 Koninklijke Philips Electronics N.V. Lampe électrique
WO2009043799A1 (fr) * 2007-09-27 2009-04-09 Osram Gesellschaft mit beschränkter Haftung Lampe à décharge comprenant un boîtier et un récipient de décharge

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8603127A (nl) * 1986-12-09 1988-07-01 Philips Nv Lagedrukkwikdampontladingslamp.
DE3918172A1 (de) * 1989-06-03 1990-12-13 Vendel Karl Heinz Entladungslampe mit stossabsorber
GB2253951A (en) * 1991-03-19 1992-09-23 Chen Ming Hsiung Light bulb and holder assembly
DE4340995A1 (de) * 1993-12-02 1995-06-08 Heraeus Noblelight Gmbh Bestrahlungslampe
US7014340B2 (en) * 2003-03-21 2006-03-21 Welch Allyn, Inc. Illumination assembly having fluid-tight seal
DE102006014294A1 (de) * 2006-03-28 2007-10-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Lampe
IN2012DE02309A (fr) * 2012-07-25 2015-10-16 Flowil Int Lighting

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB236618A (en) * 1924-04-03 1925-07-03 Percie Vaughan Castell Evans An improved method of fixing the caps of thermionic valves, electric lamp bulbs and the like
GB2018510A (en) * 1978-04-04 1979-10-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Securing bases to electric lamp bubls
GB2029093A (en) * 1978-08-21 1980-03-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Attachment of caps to press- sealed lamps
GB2120842A (en) * 1982-05-21 1983-12-07 Gen Electric Lamp unit having accurately positioned filament

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL185114C (nl) * 1980-06-04 1990-01-16 Philips Nv Lagedrukkwikdampontladingslamp.
DE3112821A1 (de) * 1981-03-31 1982-10-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Elektrische lampe mit einer als quetschung ausgebildeten gefaesseinschmelzung sowie vorrichtung und verfahren zur herstellung
JPS63764A (ja) * 1986-06-20 1988-01-05 Canon Inc 文書処理装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB236618A (en) * 1924-04-03 1925-07-03 Percie Vaughan Castell Evans An improved method of fixing the caps of thermionic valves, electric lamp bulbs and the like
GB2018510A (en) * 1978-04-04 1979-10-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Securing bases to electric lamp bubls
GB2029093A (en) * 1978-08-21 1980-03-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Attachment of caps to press- sealed lamps
GB2120842A (en) * 1982-05-21 1983-12-07 Gen Electric Lamp unit having accurately positioned filament

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5039904A (en) * 1989-09-28 1991-08-13 General Electric Company Mount for miniature arc lamp
EP0618609A1 (fr) * 1993-03-31 1994-10-05 Koninklijke Philips Electronics N.V. Lampe électrique
WO2009043799A1 (fr) * 2007-09-27 2009-04-09 Osram Gesellschaft mit beschränkter Haftung Lampe à décharge comprenant un boîtier et un récipient de décharge

Also Published As

Publication number Publication date
DE3410841A1 (de) 1985-09-26
EP0155672A3 (en) 1986-12-03
EP0155672B1 (fr) 1989-06-07
US4672263A (en) 1987-06-09
DE3570947D1 (en) 1989-07-13

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