WO2001084044A2 - Base assembly for an electric lamp - Google Patents

Base assembly for an electric lamp Download PDF

Info

Publication number
WO2001084044A2
WO2001084044A2 PCT/US2001/009708 US0109708W WO0184044A2 WO 2001084044 A2 WO2001084044 A2 WO 2001084044A2 US 0109708 W US0109708 W US 0109708W WO 0184044 A2 WO0184044 A2 WO 0184044A2
Authority
WO
WIPO (PCT)
Prior art keywords
pin
sleeve
adapter
contact
base assembly
Prior art date
Application number
PCT/US2001/009708
Other languages
French (fr)
Other versions
WO2001084044A3 (en
Inventor
Edward Eugene Hammer
Alvin Ardell Bush
Erwin Gale Steinbrenner
Original Assignee
General Electric Company
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 Company filed Critical General Electric Company
Publication of WO2001084044A2 publication Critical patent/WO2001084044A2/en
Publication of WO2001084044A3 publication Critical patent/WO2001084044A3/en

Links

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
    • H01J5/62—Connection of wires protruding from the vessel to connectors carried by the separate part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
    • H01R33/0827—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/22—End caps, i.e. of insulating or conductive material for covering or maintaining connections between wires entering the cap from the same end
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr

Definitions

  • This invention relates to electric lamps in general and, more particularly, to a base assembly for a fluorescent lamp.
  • FIG. 1 is a side view of a base assembly according to the invention.
  • FIG. 2 is a perspective view of a recessed double-contact base adapter assembly.

Abstract

Reliable contact between fluorescent lamp leads and fluorescent lamp base contacts is achieved by passing the leads through a conductive hollow pin mounted in a base assembly, bending the leads back against the pin and press-fitting a conductive sleeve over the pin and bent lead.

Description

BASE ASSEMBLY FOR AN ELECTRIC LAMP
BACKGROUND OF THE INVENTION
5 This invention relates to electric lamps in general and, more particularly, to a base assembly for a fluorescent lamp.
A fluorescent lamp conventionally includes a tubular glass envelope having opposing ends fitted with base assemblies. The fluorescent lamp is supported by a pair of lamp holders or sockets into which the base assemblies 0 extend for connection to an electrical source. Generally, there are two different types of base assemblies: bi-pin base assemblies and recessed double-contact base assemblies.
A bi-pin base assembly typically includes a pair of outwardly-extending hollow pins staked to insulating disks. Electrode lead wires are secured inside 5 the pins by welding or crimping.
A recessed double-contact base assembly typically includes a plate having an elliptical opening formed therein. An outwardly-extending collar is joined to the plate and surrounds the opening. A pair of contacts are secured to the plate and extend into the collar. Electrode lead wires are secured to outer o ends of the contacts in the collar by welding or crimping.
In conventional bi-pin and recessed double-contact assemblies, it is not uncommon for the electrical connection between an electrode lead wire and a pin or terminal to be compromised due to a faulty weld or crimp. With new end of life ballast circuits being developed, however, it has become increasingly important 5 to provide secure electrical connections between the electrode lead wires and the bi-pins or coHtacts.
Based on the foregoing it would be desirable to provide a base assembly for an electrical lamp that provides secure electrical connections between electrode lead wires and pins or contacts. The present invention is directed to o such a base assembly. SUMMARY OF THE INVENTION
FIG. 1 is a side view of a base assembly according to the invention. FIG. 2 is a perspective view of a recessed double-contact base adapter assembly.
FIG. 3 is an interior plan view of the adapter according to the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
A base assembly for an electric lamp having at least one wire-like lead includes a support member having an interior and an exterior side, at least one hollow conducting pin having an interior and exterior end, and a conducting sleeve. The pin extends through and is supported by the member. The exterior end extends beyond the exterior side. The lead extends through the pin and out the exterior end and is bent back along the exterior end and the sleeve conductively retains the lead between the pin and the sleeve.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIG. 1 a lamp portion 10 includes a pair of wire-like leads 12 for conducting electricity from a source to the lamp. In the case of bi-pin fluorescent lamps, there are two leads 12 at each end of the lamp. The base assembly 14 is a conventional bi-pin base assembly except that the hollow conducting pins 16 are shorter and of a smaller diameter than those of a conventional bi-pin base assembly. The base assembly 14 includes a support member 17 that 'supports the pins 16. The leads 12 extend through the hollows of respective pins 16. and are bent back along the pins 16.
Conducting sleeves 18 are press-fitted over the pins 16 and the bent leads 12. The lead 12 is squeezed between the pin 16 and the sleeve 18. The sleeves 18 may be composed of brass, copper or other suitable conductor. The outside diameter of the sleeves 18 matches that of conventional bi-pin base assembly pins. The hollow interior of the sleeves 18 is sized to provide for squeezing conductive contact between the pins 16, the leads 12 and the sleeves 18. The length of the sleeves 18 is chosen to match that of a conventional bi-pin assembly. 5 The capture of the lead 12 between the pin 16 and the sleeve 18 provides a positive physical contact that in turn provides a reliable and secure electrical contact between the lead 12 and the sleeve 18.
In the preferred embodiment, the sleeves 18 are secured to the pins 16 by, for example, crimping, welding, or soldering. 0 Referring to FIGS. 2 and 3, another embodiment of the invention is used to provide a recessed double-contact base assembly for a fluorescent lamp. Two sleeves 18' are supported in an adapter 20. The adapter 20 has an exterior side having two conventional recessed double-contact base type contacts 22. The interior side of the adapter 20 has cavities 24 to receive the sleeves 18' in 5 electrical contact with the contacts 22. Similar to the previous embodiment, the sleeves 18' are press-fit over two pins 16 and bent leads 12 to provide a recessed double-contact fluorescent lamp base assembly. In this embodiment, the outside diameter of the sleeves 18' need not match the standard for bi-pin base assemblies because the sleeves 18' do not need to fit a standard bi-pin 0 socket. This then also allows additional freedom for sizing the pins 16 and the corresponding hollow interior of the sleeves 18'.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without 5 departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the o invention will include all embodiments falling within the scope of the appended claims.

Claims

WHAT IS CLAIMED:
1. A base assembly for an electric lamp having at least one wire-like lead, said assembly comprising: a support member having an interior and an exterior side; at least one hollow pin having an interior and exterior end, said pin extending through and being supported by said member, said exterior end extending beyond said exterior side; and a conducting sleeve, wherein said lead extends through said pin and out said exterior end and is bent back along said exterior, end, and said sleeve conductively retains said lead between said pin and said sleeve.
2. An assembly according to claim 1 , wherein said sleeve is crimped to said pin.
3. An assembly according to claim 1 , wherein said sleeve is soldered to said pin.
4. An assembly according to claim 1 , wherein said sleeve is welded to said pin.
5. An assembly according to claim 1 , wherein said assembly provides a bi-pin fluorescent lamp base assembly.
6. An assembly according to claim 1 , further comprising: an adapter, said adapter having an interior side and an exterior side; and at least one recessed double-contact style electric lamp contact, said contact being supported by said adapter in an operable position at said adapter exterior side and said conducting sleeve being supported by said adapter in an operable position at said adapter interior side, said sleeve and said contact being in electrical communication.
7. An assembly according to claim 5, wherein said adapter provides a recessed double-contact fluorescent lamp base assembly.
PCT/US2001/009708 2000-04-28 2001-03-27 Base assembly for an electric lamp WO2001084044A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56090600A 2000-04-28 2000-04-28
US09/560,906 2000-04-28

Publications (2)

Publication Number Publication Date
WO2001084044A2 true WO2001084044A2 (en) 2001-11-08
WO2001084044A3 WO2001084044A3 (en) 2002-02-21

Family

ID=24239849

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/009708 WO2001084044A2 (en) 2000-04-28 2001-03-27 Base assembly for an electric lamp

Country Status (1)

Country Link
WO (1) WO2001084044A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008049741A2 (en) * 2006-10-23 2008-05-02 Osram Gesellschaft mit beschränkter Haftung Electrical light source, in particular for use in a reflector
EP2224554A1 (en) * 2007-12-20 2010-09-01 Sharp Kabushiki Kaisha Electric discharge tube, illuminating device, display device, and television receiver
DE102015214757A1 (en) * 2015-08-03 2017-03-02 Osram Gmbh Socket for a light bulb, lighting means and method for producing a socket for a light bulb

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677118A (en) * 1951-10-31 1954-04-27 Gen Electric Electric lamp or similar device and method of manufacture
US4324998A (en) * 1980-04-02 1982-04-13 Westinghouse Electric Corp. Base and terminal-pin assembly for an electric lamp
US4854888A (en) * 1988-05-31 1989-08-08 Gte Products Corporation Lamp base
US5013962A (en) * 1989-12-26 1991-05-07 Gte Products Corporation Single pin lamp base and fluorescent lamp including same
FR2697671B1 (en) * 1992-11-03 1995-01-06 Aven Discharge lamp of the tubular envelope type with metal base, and connection lug for such a discharge lamp.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008049741A2 (en) * 2006-10-23 2008-05-02 Osram Gesellschaft mit beschränkter Haftung Electrical light source, in particular for use in a reflector
WO2008049741A3 (en) * 2006-10-23 2009-01-29 Osram Gmbh Electrical light source, in particular for use in a reflector
EP2224554A1 (en) * 2007-12-20 2010-09-01 Sharp Kabushiki Kaisha Electric discharge tube, illuminating device, display device, and television receiver
EP2224554A4 (en) * 2007-12-20 2012-11-28 Sharp Kk Electric discharge tube, illuminating device, display device, and television receiver
DE102015214757A1 (en) * 2015-08-03 2017-03-02 Osram Gmbh Socket for a light bulb, lighting means and method for producing a socket for a light bulb

Also Published As

Publication number Publication date
WO2001084044A3 (en) 2002-02-21

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