EP0607016A1 - Procédé et dispositif pour fournir un support de fil pour une lampe électrique - Google Patents

Procédé et dispositif pour fournir un support de fil pour une lampe électrique Download PDF

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Publication number
EP0607016A1
EP0607016A1 EP94300178A EP94300178A EP0607016A1 EP 0607016 A1 EP0607016 A1 EP 0607016A1 EP 94300178 A EP94300178 A EP 94300178A EP 94300178 A EP94300178 A EP 94300178A EP 0607016 A1 EP0607016 A1 EP 0607016A1
Authority
EP
European Patent Office
Prior art keywords
conductor wires
light source
lamp
support member
electric lamp
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
EP94300178A
Other languages
German (de)
English (en)
Other versions
EP0607016B1 (fr
Inventor
Laszlo Viktor Lieszkovsky
Frederic Francis Ahlgren
Ludwig N. Skilskyj
Ronald J. Surmick
John T. Pastir
Frank Edward Zalar
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of EP0607016A1 publication Critical patent/EP0607016A1/fr
Application granted granted Critical
Publication of EP0607016B1 publication Critical patent/EP0607016B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • 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

Definitions

  • This invention relates to a method and apparatus for providing wire support for an electric lamp and more particularly, for providing such a wire support arrangement which can utilize cost efficient components and can be easily manufactured by means of a high speed automated manufacturing process.
  • a specifically constructed spacer element is welded between two parallel oriented conductor leads which extend to the filament and provide power thereto.
  • This example further provides for a glass insulator and a heat shield/insulator configuration which bridge across the two parallel oriented conductor wires along various points thereof for purposes including spacing, support and shielding. Similar to the previously cited reference U.S. 4,039,885, this example further utilizes a spacer member which is specifically manufactured for the use set forth and accordingly, has a higher cost associated therewith than would a component that could serve the same purpose along with various other purposes thereby making such component cost efficient due to mass production availability.
  • a support and/or spacer arrangement for use with the conductor leads of an electric lamp could be provided that would be significantly reduced in cost relative to the dedicated element currently used for this purpose.
  • a spacer/support device could be utilized that had significant other applications that would allow that such device be produced in mass quantities, thereby reducing the unit cost per element, such a device would be significantly reduced in price relative to an element which is specifically designed for the one purpose as described in the above discussed patents.
  • a cost effective replacement for currently used spacer/support elements must be capable of implementation on a high speed automation manufacturing system in order to further enhance the cost saving potential of such an element.
  • the space/support device In such an environment, it is necessary that the space/support device not only maintain the spacing between the mount wires as in the situation of parallel disposed conductor wires as illustrated in the previously discussed two patents, but where the light generating arrangement includes an lamp envelope having significantly greater weight than an incandescent filament, it is also necessary that the spacer/support arrangement provide a greater amount of support and prevent twisting or other movement of the lamp envelope away from the axis on which it is originally mounted. This is particularly important where such a lamp envelope or arc tube as in the case of a discharge light source, is disposed in a reflector or parabolic lamp that requires that the light source maintain its proper positioning within the reflector portion of that lamp in order to insure that the optical characteristics of that reflector or parabolic lamp are accurate.
  • an electric lamp having an improved wire support arrangement having at least two conductor wires which function both to provide electrical power to the lamp and to support the light source within the lamp.
  • the support member arrangement of the present invention will extend between pairs of the conductors and provide a mechanical support so as to proven significant movement of the conductor wires relative to one another.
  • the support member is achieved by use of an electrically insulative device connected between the conductor wires leading to the light source.
  • this support member is provided for by means of a resistor blank which can be installed in an assembly line operation in the form of a spool of such elements.
  • the spool of resistor blanks is particularly cost efficient due to the fact that completed spools of resistors are used on a widespread basis in the electronics industry as for instance in the assembly of printed circuit boards which go into various electronic products.
  • the spool of resistor blanks offers a significant cost savings over those devices presently used in the lamp art for the purposes of support and energy conduction to the light source and further, lends itself to a high speed manufacturing operation similar to that used in the electronic product assembly market.
  • the present invention achieves advantages over the previous approaches to providing additional support to the light source, conductor wire configuration. This is particularly true by the use of resistor blanks which are even more cost effective that would be fully manufactured spools of resistor elements. This is so since the use of resistor blanks is more cost effective given that this use treats the blank resistor as an end product even before it has been subjected to the metal oxide film coating process which is typically used to set the resistive values of the completed spools of resistors.
  • Fig. 1 is an elevational view in section of an electric lamp having an improved mounting arrangement and constructed in accordance with the principles of the present invention.
  • Fig. 2 is an elevational view of a manufacturing assembly line capable of implementing the high speed manufacturing operation of the electric lamp as illustrated in fig. 1.
  • Fig. 3 is an elevational view of a station for supplying and welding the support members to the assembly line as illustrated in fig. 2.
  • the electric lamp 10 having an improved wire support arrangement and which is constructed in accordance with the principles of the present invention, includes a light source 12 having leads 14 extending outwardly therefrom.
  • L-shaped conductor wires 16, 18 are shown connected to the leads 14 and are effective for providing conduction of the energy to the light source 12 and for supporting the light source 12 within the electric lamp 10.
  • the light source 12 is an incandescent light source having a filament 20 disposed within a double ended quartz lamp envelope 22 and mounted between parallel base portions 16a and 18a of the L-shaped conductor wires 16, 18.
  • the filament 20 is constructed having a plurality of filament turns and as such, it is known that, should excessive forces be exerted on the electric lamp 10, the filament turns could be shorted between one another thereby causing a premature lamp failure.
  • the present invention is illustrated in conjunction with an incandescent light source 12 having a lamp envelope 22 disposed around a filament 20, it should be understood that the improved wire support arrangement of the present invention would be equally effective with other light sources constructed in various manners as well. It is intended that the present invention apply equally to discharge light sources having arc tubes as well as other types of incandescent light sources in which an lamp envelope is not utilized; that is, a bare filament is utilized.
  • the electric lamp 10 can be utilized in a reflector or PAR type of lamp as shown in the previously discussed U.S. Patent No. 5,019,743 which has been incorporated by reference.
  • the lamp envelope maintain its alignment with the longitudinal axis of the reflector or PAR lamp in order to insure that the optical characteristics of such lamp remain accurate.
  • additional support is needed to maintain the positioning and integrity of the light source than that which would be required for a light source employing merely an incandescent filament.
  • a support member 24 is connected between the conductor wires 16, 18 at a point spaced apart from where the leads 14 are connected to the conductor wires 16, 18.
  • the support member 24 must be made of an electrically insulative material so that a short circuit does not occur between the two conductor wires 16, 18.
  • the support member 24 is realized by use of a resistor blank which is constructed having a ceramic center portion and two lead wires 26 extending from end caps 28 disposed on either side of the ceramic center portion.
  • the resistor blank element serving as the support member 24 is one that is commonly utilized in the manufacture of various resistor components used in the production of electronic products.
  • the resistor core is put through a further manufacturing process to obtain the various resistive values that are needed for the electronic circuits on which the resistors are mounted.
  • this final manufacturing step is eliminated thereby making the cost of such element even less than the typical resistor used for electronic product assembly.
  • the resistor blanks are obtainable in large quantities at very reasonable costs and already configured to be used on an high speed automation system by virtue of being supplied on a spool arrangement 52 as illustrated in fig. 3.
  • conductor wires 16, 18 are illustrated as being L-shaped in configuration, it should be realized that the advantage of the present invention in terms of component cost advantage and adaptability to high speed automation, can also be realized for the parallel straight conductor wires typically used in lamps such as are described in the previously described U.S. Patent Nos. 3,819,970 and 4,039,885.
  • first conductor wire 16 is longer and constructed of a heavier gauge metal than the second conductor wire 18. Since it is known that the light source 12 having the lamp envelope 22 construction is heavier and therefore requires additional support over the light source utilizing merely an incandescent filament, the support member arrangement 24 must be effective to help isolate the light source 12 from the adverse affects of shock or vibration caused by the exertion of excessive forces on the lighting product, as can occur for instance in the case of an automotive sealed beam headlamp or in the mishandling of a PAR type of lamp.
  • the support member 24 of the present invention insures that the spacing between the respective back portions 16b, 18b of the conductor wires 16, 18 are maintained in a fixed relation so that the overall electric lamp 10 having the improved wire support arrangement can be easily installed in a reflector or other type of outer lamp, screw base arrangement by way of a high speed automated manufacturing operation.
  • the resistor blank that comprises support member 24 is selected so that the center portion 30 is large relative to the lengths of the core leads 26 thereby providing for a more rigid structure.
  • the manufacture of the electric lamp 10 shown in fig. 1, is accomplished by means of a high speed automated manufacturing process as illustrated representationally in fig. 2.
  • the manufacturing system 40 can include a conveyor belt portion 42 which proceeds past a number of stations 44 at which various lamp construction operations are performed.
  • stations 44 can perform the functions of inserting the filament 20 into the lamp envelope 22 and welding conductor wires 16, 18 to leads 14 of the light source 12.
  • Station 50 disposed along conveyor belt 42 performs the function of selectively advancing a single support member 24 into the loaded position for each light source 12, conductor wire 16, 18 configuration completed to that stage.
  • the station 50 can be further effective for performing the operation of welding support member 24 to the conductor wires 16, 18 in the orientation previously described.
  • a station 46 which can perform the function of inserting the electric lamp 10 having the improved wire support arrangement of the present invention into a reflector assembly of other outer bulb configuration having a screw base portion for allowing insertion of the completed lamp assembly into a light fixture (not shown).
  • the station 50 which supplies the support members 24 to the high speed automation system of fig. 2, includes a spool 52 having contained thereon, a large supply of the support members 24. Additionally, a welding function is also performed at station 50 by means of a welding device 54 which can form a part of station 50.

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP19940300178 1993-01-12 1994-01-11 Procédé et dispositif pour fournir un support de fil pour une lampe électrique Expired - Lifetime EP0607016B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US335893A 1993-01-12 1993-01-12
US3358 1998-01-06

Publications (2)

Publication Number Publication Date
EP0607016A1 true EP0607016A1 (fr) 1994-07-20
EP0607016B1 EP0607016B1 (fr) 1996-09-18

Family

ID=21705490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940300178 Expired - Lifetime EP0607016B1 (fr) 1993-01-12 1994-01-11 Procédé et dispositif pour fournir un support de fil pour une lampe électrique

Country Status (4)

Country Link
EP (1) EP0607016B1 (fr)
JP (1) JPH06243843A (fr)
CA (1) CA2103415A1 (fr)
DE (1) DE69400529D1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114069A (en) * 1960-10-14 1963-12-10 Sylvania Electric Prod Incandescent lamp with vibration damping support for filament
US3502931A (en) * 1968-04-10 1970-03-24 Gen Electric Electric incandescent lamp mount structure
GB2234628A (en) * 1989-07-31 1991-02-06 Koito Mfg Co Ltd Discharge lamp base construction.
EP0429256A2 (fr) * 1989-11-17 1991-05-29 General Electric Company Structure de montage améliorée pour lampe à double terminaison

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114069A (en) * 1960-10-14 1963-12-10 Sylvania Electric Prod Incandescent lamp with vibration damping support for filament
US3502931A (en) * 1968-04-10 1970-03-24 Gen Electric Electric incandescent lamp mount structure
GB2234628A (en) * 1989-07-31 1991-02-06 Koito Mfg Co Ltd Discharge lamp base construction.
EP0429256A2 (fr) * 1989-11-17 1991-05-29 General Electric Company Structure de montage améliorée pour lampe à double terminaison

Also Published As

Publication number Publication date
DE69400529D1 (de) 1996-10-24
EP0607016B1 (fr) 1996-09-18
CA2103415A1 (fr) 1994-07-13
JPH06243843A (ja) 1994-09-02

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