EP0251372B1 - Elektrische Glühlampe für Reihenschaltung - Google Patents

Elektrische Glühlampe für Reihenschaltung Download PDF

Info

Publication number
EP0251372B1
EP0251372B1 EP87201097A EP87201097A EP0251372B1 EP 0251372 B1 EP0251372 B1 EP 0251372B1 EP 87201097 A EP87201097 A EP 87201097A EP 87201097 A EP87201097 A EP 87201097A EP 0251372 B1 EP0251372 B1 EP 0251372B1
Authority
EP
European Patent Office
Prior art keywords
supply wires
wire
mass
power supply
incandescent 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.)
Expired - Lifetime
Application number
EP87201097A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0251372A2 (de
EP0251372A3 (en
Inventor
Wolf-Dieter Bauch
Rolf Gervelmeyer
Heinz Dr. Merker
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.)
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Patentverwaltung GmbH
Publication of EP0251372A2 publication Critical patent/EP0251372A2/de
Publication of EP0251372A3 publication Critical patent/EP0251372A3/de
Application granted granted Critical
Publication of EP0251372B1 publication Critical patent/EP0251372B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/62—One or more circuit elements structurally associated with the lamp
    • H01K1/70—One or more circuit elements structurally associated with the lamp with built-in short-circuiting device, e.g. for serially connected lamps

Definitions

  • the invention relates to an electric incandescent lamp for series connection with a translucent bulb, in which a filament is arranged between power supply wires that emerge through the wall of the bulb, in which bulb the power supply wires are electrically insulated from one another by a support member and the lamp is on Contains short-circuit element, which bridges the incandescent body and contains a glass mass in which metal powder is dispersed.
  • a lamp is known from GB-A-10 77 863.
  • the short-circuit element In the case of lamps of this type, the short-circuit element must be practically impermeable to current at the operating voltage, but the overvoltage which occurs when the incandescent body burns while the lamp is operating in series connection becomes conductive.
  • the short-circuit element consists of a sintered mixture of glass powder and iron powder, which is melted or sintered onto the power supply wires.
  • the mixture can be introduced into a hollow support member, itself formed as a support member or sintered on the outside of the lamp bulb.
  • This short-circuit element connecting the power supply wires initially acts as an insulator, but is said to break down when a high electrical voltage is applied and thus short-circuit the lamp when the incandescent body burns out.
  • GB-A-10 77 863 also mentions a short-circuit element for electric incandescent lamps for series connection, which consists of copper oxide powder and glass powder.
  • This organ is also non-conductive in the normal state and should only become conductive when an overvoltage is applied. It has been found in practice that this organ does not work reliably either.
  • incandescent lamp known from GB-A-839 160 with a short-circuit element made from a paste of copper powder, magnesium oxide and silicone resin, the proportion of magnesium oxide being 18 to 24% by weight of the copper proportion.
  • This organ is also non-conductive, but should become conductive when an overvoltage is applied.
  • the invention has for its object to provide an electric incandescent lamp of the type mentioned with a short-circuit element which responds reliably when the incandescent body burns through and bridges the lamp in an electrically conductive manner.
  • this lamp should also be easy to manufacture in mass production.
  • the electric incandescent lamp of the type mentioned at the outset according to the invention in that at least one of the power supply wires consists of nickel wire, copper wire or copper sheathed wire and the glass mass is a fused mass which is 50 to 70% by weight of glass and 30 to 50% by weight. % of copper powder dispersed therein and with the power supply wires is fused, wherein the aforementioned power supply wire has an oxide skin at its melting point in the glass mass, which breaks through when the incandescent body burns through.
  • the glass mass with copper powder dispersed in it is electrically conductive right from the start due to its high copper content.
  • the resistance to the direct passage of current is generated by the oxide skin located at the melting point on the power supply wire, the thickness and thus breakdown voltage of which can be controlled by the conditions during the melting.
  • This lamp has only one parameter that determines the breakdown voltage. All other known solutions, however, depend on several parameters and are therefore more vulnerable and more difficult to control from the outset.
  • both power supply wires consist of nickel wire, copper wire or copper sheath wire and have an oxide skin at their melting points.
  • the short-circuit element then comprises the already electrically conductive mass of fused glass and copper powder dispersed therein and the two initially non-conductive oxide skins.
  • the glass mass with copper powder of the incandescent lamp according to the invention dispersed therein can either be melted onto the support member holding the power supply wires, as the support member connecting the power supply wires in an electrically insulating manner, or can be fused to the bulb on the outside of the bulb.
  • a mixture of copper powder and glass powder can be pressed into a ring and sintered, after which the ring is attached to the support member provided with the power supply wires and melted until the ring material on the support member forms a connection between the power supply wires.
  • the short-circuit element can be produced on the outside of the piston.
  • the mass itself is to be designed as a support member for the power supply wires
  • a mixture of copper powder and glass powder can be pressed and sintered, whereupon the ring is placed on the power supply wires which are arranged at a distance from one another and then melted to form an electrically conductive support member.
  • a glass is advantageously chosen that does not soften at the operating temperature of the lamp, but is easy to process. Glasses with a melting point in the range of 500-600 ° C have proven to be advantageous.
  • the oxide skin on a power supply wire can be easily, e.g. when it melts into the glass mass.
  • the thickness of the oxide skin can be easily controlled by means of a protective gas jet directed at the melting point. A small number of attempts are sufficient to determine the conditions for obtaining a desired breakdown voltage.
  • both power supply wires can have an oxide skin at the melting point.
  • the lamps contain a short-circuit element 5, which bridges the incandescent body 2 and contains a glass mass 5 with metal powder dispersed therein.
  • the lamps are each provided with a screw base 7, which is connected to the power supply wires 3.
  • the glass mass 6 is a fused mass which contains 50 to 70% by weight of glass and 30 to 50% by weight of copper powder dispersed therein and which is fused to the power supply wires 3.
  • the power supply wires 3 have an oxide skin 8 at their melting points in the glass mass 6, which breaks through when the incandescent body 2 burns through.
  • the glass mass 6 is a layer in FIG. 1, which is located on the support member 4; 2, the glass mass 6 itself forms the support member 4.
  • the glass mass 6 with the copper powder dispersed therein is already electrically conductive at the beginning of the life of the lamps.
  • the mass has a resistance of about 1 ohm.
  • the power supply wires 3 are connected to one another in an electrically insulating manner, since the Mass 6 attacks the oxide skin 8 of the wires 3.
  • the mass 6 contains 60.4% by weight of glass, for example lead borosilicate glass with a melting point of about 550 ° C., and 39.6% by weight of copper powder, for example powder with a particle size between 8 and 60 ⁇ m with 90% by weight between 8 and 40 ⁇ m.
  • the short-circuit element in these lamps consists of the mass 6 and the oxide skins 8. Due to these oxide skins 8, there is an electrically non-conductive connection between the power supply wires 3 at the beginning of the life of the lamps, but when the incandescent body 2 burns out during operation of the lamps in series connection, the full voltage, which leads the row, on the short-circuit element 6, 8. The oxide skins 8 break through and the short-circuit element 6, 8 becomes electrically conductive.
  • the thickness of the oxide skins is chosen so that the breakdown voltage of the short-circuit element is between 50 and 200 V. In the exemplary embodiments described, the thickness of the oxide skins is 4 ⁇ m.
  • the lamp according to the invention has proven to be very reliable and easy to manufacture.
  • Composition 6 can be made by adding 58% by weight glass powder, 38% by weight copper powder and 4% by weight binder, e.g. Acrylic resin, mixed and pressed into rings.
  • the rings can be sintered for solidification, e.g. for 20 seconds at 625 - 635 ° C. During this and when the rings fuse with the power supply wires, the binder decomposes and the decomposition products escape.
  • the thickness of the oxide skins 8 is during the melting process by blowing with a protective gas, e.g. Nitrogen, can be influenced.

Landscapes

  • Resistance Heating (AREA)
  • Glass Compositions (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP87201097A 1986-06-18 1987-06-11 Elektrische Glühlampe für Reihenschaltung Expired - Lifetime EP0251372B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863620373 DE3620373A1 (de) 1986-06-18 1986-06-18 Elektrische gluehlampe fuer reihenschaltung und verfahren zu ihrer herstellung
DE3620373 1986-06-18

Publications (3)

Publication Number Publication Date
EP0251372A2 EP0251372A2 (de) 1988-01-07
EP0251372A3 EP0251372A3 (en) 1989-11-23
EP0251372B1 true EP0251372B1 (de) 1993-04-28

Family

ID=6303186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87201097A Expired - Lifetime EP0251372B1 (de) 1986-06-18 1987-06-11 Elektrische Glühlampe für Reihenschaltung

Country Status (5)

Country Link
US (1) US4808885A (ja)
EP (1) EP0251372B1 (ja)
JP (1) JPH0719586B2 (ja)
CA (1) CA1291204C (ja)
DE (2) DE3620373A1 (ja)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4334510A1 (de) * 1993-10-09 1994-02-24 Gluehlampenwerk Oberweisbach G Elektrische Glühlampe für Reihenschaltung
US6583536B1 (en) * 2000-02-15 2003-06-24 James W Gibboney, Jr. Multiple, sequential filament lamp
US7029145B2 (en) * 2001-03-19 2006-04-18 Integrated Power Components, Inc. Low voltage decorative light string including power supply
CA2441278C (en) * 2001-03-19 2009-12-29 Integrated Power Components, Inc. Decorative light string having shunt repair device
US6642660B1 (en) * 2002-07-12 2003-11-04 Whiter Shieh Filament shunt member for decorative lamp
US20050110427A1 (en) * 2003-11-24 2005-05-26 Frederick W. R. Decorative light strings
US20050152140A1 (en) * 2004-01-06 2005-07-14 Frederick W. R. Decorative sheeting with illuminated sources
US7253556B1 (en) 2006-12-08 2007-08-07 Tech Patent Licensing, Llc Light string socket with mechanical shunt
US7554266B1 (en) 2007-09-11 2009-06-30 Willis Electric Co., Ltd. Mechanical shunt for use in a socket in a string of lights
US7943211B2 (en) * 2007-12-06 2011-05-17 Willis Electric Co., Ltd. Three dimensional displays having deformable constructions
US7453194B1 (en) 2008-06-05 2008-11-18 Gibboney James W Mechanical shunt for use in the sockets of a string of lights
US20100289415A1 (en) * 2009-05-18 2010-11-18 Johnny Chen Energy efficient decorative lighting
US20110085327A1 (en) * 2009-10-14 2011-04-14 Johnny Chen Decorative light display with LEDs
US8568015B2 (en) 2010-09-23 2013-10-29 Willis Electric Co., Ltd. Decorative light string for artificial lighted tree
US8298633B1 (en) 2011-05-20 2012-10-30 Willis Electric Co., Ltd. Multi-positional, locking artificial tree trunk
US9157587B2 (en) 2011-11-14 2015-10-13 Willis Electric Co., Ltd. Conformal power adapter for lighted artificial tree
US8569960B2 (en) 2011-11-14 2013-10-29 Willis Electric Co., Ltd Conformal power adapter for lighted artificial tree
US8876321B2 (en) 2011-12-09 2014-11-04 Willis Electric Co., Ltd. Modular lighted artificial tree
US9179793B2 (en) 2012-05-08 2015-11-10 Willis Electric Co., Ltd. Modular tree with rotation-lock electrical connectors
US9572446B2 (en) 2012-05-08 2017-02-21 Willis Electric Co., Ltd. Modular tree with locking trunk and locking electrical connectors
US9044056B2 (en) 2012-05-08 2015-06-02 Willis Electric Co., Ltd. Modular tree with electrical connector
US10206530B2 (en) 2012-05-08 2019-02-19 Willis Electric Co., Ltd. Modular tree with locking trunk
US9439528B2 (en) 2013-03-13 2016-09-13 Willis Electric Co., Ltd. Modular tree with locking trunk and locking electrical connectors
US9671074B2 (en) 2013-03-13 2017-06-06 Willis Electric Co., Ltd. Modular tree with trunk connectors
US9894949B1 (en) 2013-11-27 2018-02-20 Willis Electric Co., Ltd. Lighted artificial tree with improved electrical connections
US8870404B1 (en) 2013-12-03 2014-10-28 Willis Electric Co., Ltd. Dual-voltage lighted artificial tree
US9883566B1 (en) 2014-05-01 2018-01-30 Willis Electric Co., Ltd. Control of modular lighted artificial trees
US10683974B1 (en) 2017-12-11 2020-06-16 Willis Electric Co., Ltd. Decorative lighting control

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE39886C (de) * E. H. JOHNSON in New-York City, V. St. A Neuerung an elektrischen Glühlampen
DE82315C (ja) *
AT82135B (de) * 1913-10-23 1920-12-27 John Venning Sicherungseinrichtung für elektrische Stromkreise.
US1681471A (en) * 1926-01-29 1928-08-21 Eckhardt Fritz Safety device for series-connected incandescent electric lamps
US1992844A (en) * 1931-07-23 1935-02-26 Gen Electric Cut-out for electric lamps
GB839160A (en) * 1957-05-18 1960-06-29 Lumalampan Ab Improvements in or relating to electric lamps
DE1489462A1 (de) * 1965-03-15 1969-04-24 Patra Patent Treuhand Elektrische Gluehlampe fuer Reihenschaltung mit einem die Stromzufuehrungsdraehte ueberbrueckenden Widerstandskoerper
FR1471502A (fr) * 1965-03-15 1967-03-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Lampe électrique à incandescence pour montage en série avec un corps de résistance reliant les fils métalliques d'amenée du courant
US3611010A (en) * 1969-09-15 1971-10-05 Westinghouse Electric Corp Series-type electric incandescent lamp with integral automatic cutout means
US4233543A (en) * 1977-12-09 1980-11-11 General Electric Company Internal shunt for series connected lamps
US4340841A (en) * 1980-05-22 1982-07-20 General Electric Company Internal shunt for series connected lamps

Also Published As

Publication number Publication date
CA1291204C (en) 1991-10-22
DE3785607D1 (de) 1993-06-03
EP0251372A2 (de) 1988-01-07
US4808885A (en) 1989-02-28
JPS632245A (ja) 1988-01-07
DE3620373A1 (de) 1987-12-23
JPH0719586B2 (ja) 1995-03-06
EP0251372A3 (en) 1989-11-23

Similar Documents

Publication Publication Date Title
EP0251372B1 (de) Elektrische Glühlampe für Reihenschaltung
DE2526037C3 (de) Überspannungsableiter
DE3716391A1 (de) Subminiatur-sicherung
DE1212220B (de) Halbleiteranordnung mit einem durch einen lamellenfoermigen Deckel verschlossenen Gehaeuse
DE2245717A1 (de) Elektrode mit einem poroesen sinterkoerper
DE3606364A1 (de) Elektrischer zuendbrueckentraeger zur anzuendung von anzuendsaetzen, verzoegerungssaetzen und pyrotechnischen mischungen sowie zur zuendung von primaerzuendstoffen und -saetzen und verfahren zu seiner herstellung
DE583836C (de) Verfahren zur Herstellung einer AEquipotentialkathode
DE2723380A1 (de) Glasierter gegenstand
DE2920042C2 (ja)
DE2750002C2 (ja)
DE3106763C2 (de) Verfahren zur Herstellung eines Überspannungsableiters mit bariumhaltiger Elektrodenbeschichtung
DE1539443C3 (de) Zeichenanzeigende Kathodenglimmlichtröhre
DE3043193A1 (de) Elektrische lampe
DE907808C (de) Stromdurchfuehrung durch Waende aus Glas oder Quarz
DE2354697C2 (de) Gasgefüllter Überspannungsableiter
DE19523338A1 (de) Überspannungsschutzelement vom Entladungstyp und Verfahren zu dessen Herstellung
DE2106511C3 (de) Gasentladungs-Überspannungsableiter
DE1639091C3 (de) Elektrische Glühlampe für Reihenschaltung
DE3234024A1 (de) Hochspannungsfeste schmelzsicherungsanordnung
DE3905315A1 (de) Elektrisch leitende glaszusammensetzung
DE1036138B (de) Funkenzuender
DE1640007B2 (de) Kontaktstueck fuer elektrische niederspannungs-wechselstromschalter
DE19852396A1 (de) Kontaktplatte für Sockel von elektrischen Lampen
DE3105195A1 (de) Ueberspannungsableiter
DE1564954A1 (de) Sockel fuer Halbleitervorrichtungen und Verfahren zu seiner Herstellung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed

Effective date: 19900517

17Q First examination report despatched

Effective date: 19920619

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL

REF Corresponds to:

Ref document number: 3785607

Country of ref document: DE

Date of ref document: 19930603

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930726

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940527

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940629

Year of fee payment: 8

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19940630

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940826

Year of fee payment: 8

ITPR It: changes in ownership of a european patent

Owner name: CAMBIO RAGIONE SOCIALE;PHILIPS ELECTRONICS N.V.

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19950523

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950611

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: PHILIPS ELECTRONICS N.V.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19960101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950611

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960229

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960301

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19960630

BERE Be: lapsed

Owner name: PHILIPS ELECTRONICS N.V.

Effective date: 19960630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050611