WO1990007208A1 - Adaptateur pour lampe a decharge compacte - Google Patents

Adaptateur pour lampe a decharge compacte Download PDF

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Publication number
WO1990007208A1
WO1990007208A1 PCT/SE1989/000727 SE8900727W WO9007208A1 WO 1990007208 A1 WO1990007208 A1 WO 1990007208A1 SE 8900727 W SE8900727 W SE 8900727W WO 9007208 A1 WO9007208 A1 WO 9007208A1
Authority
WO
WIPO (PCT)
Prior art keywords
adapter
housing part
housing
lamp
circuit card
Prior art date
Application number
PCT/SE1989/000727
Other languages
English (en)
Inventor
Törje ILEMO
Original Assignee
Combinova Ab
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 Combinova Ab filed Critical Combinova Ab
Publication of WO1990007208A1 publication Critical patent/WO1990007208A1/fr

Links

Classifications

    • 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
    • H01R33/94—Holders formed as intermediate parts for linking a counter-part to a coupling part
    • H01R33/942—Holders formed as intermediate parts for linking a counter-part to a coupling part for tubular fluorescent lamps
    • 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
    • H01R33/0809—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp having contacts on one side only
    • 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
    • H01R33/945—Holders with built-in electrical component

Definitions

  • the invention relates to an adapter for connecting a compact discharge lamp to a household voltage via an electrical adapter circuit, the adapter being of the kind referred to in the first part of claim 1.
  • Such adapters with a two-part housing are previously known, e.g. from EP-A-179 473.
  • the assembly of the adapter, especially the electric circuit card and the associated components and terminals is greatly facilitated.
  • the circuit card can be secured by clamping between the two housing parts, thus avoiding separate fasteners for the circuit card.
  • the two housing parts are secured to each other by a snap locking coupling at the joint between the substantially cylindrical, outer wall portions of the two housing parts, the upper housing part having an internal flange with a circumferential ridge snapping into a cor ⁇ responding groove at the inside of the lower housing part.
  • a snap locking enables a very convenient and fast assembly of the two parts.
  • the locking is not quite safe, since unintentional or accidental forces may pull the housing halves apart from each other, the risk being increased in case the housing is heated, causing the plastic material to be softened ⁇ or upon aging of the material.
  • An object of the present invention is to improve an adapter as defined in the first part of claim 1, so that the two housing parts are held together effectively and safely in spite of a relatively simple and inexpensive structural design.
  • a further object is to provide a compact structure with relatively small dimensions.
  • Still another object is to provide a structure, which enables an easy and reliable mounting of one or more circuit cards .
  • Fig. 1 shows an exploded perspective view of a compact fluorescent lamp unit and the various parts of a first embodiment of an adapter provided with a conventional incadescent lamp base;
  • Fig. 2 is a central, longitudinal section through the adapter of fig. 1 ;
  • Fig. 3 is another central, longitudinal section, in a plane rotated 90° in relation to fig. 2, through the adapter of fig. 1, the right hand side of the section and the lamp base being omitted;
  • Fig. 4 shows a perspective, exploded view of a lamp fitting, a compact fluorescent lamp unit and various parts included in a second embodiment of an adapter to be mounted in the lamp itting;
  • Fig. 5 is a central, longitudinal section through the adapter of fig. 4 Cupon assembly).
  • Fig. 6 shows, in perspective view, a modified version of the embodiment shown in figs. 1-3.
  • a compact fluorescent lamp unit 1 (the upper portion of the lamp tubes being left out ) of a standardized type having a base portion 2 including a box-like holding extension 3 with a rectangular cross- -section and terminal pins 4.
  • An adapter 5 serves to mechanically hold the lamp unit 1 and connect its terminals 4 via an electronic circuit, which includes a high frequency generator and an output series choke or inductor, to an ordinary household a.c. supply voltage, in this case via a conventional incadescent lamp base.
  • the flourescent lamp unit 1 can be mounted in any regular lamp fitting with a holder for an incadescent lamp.
  • the adapter 5 comprises a lower housing part 6 with a conventional lamp base 7, an electric circuit card 8 with various electrical components 8a constituting the above- - entioned electronic circuit, and an upper housing part 9, including a centrally located holder portion 10 for receiving and holding the lamp unit 1.
  • the lamp unit 1 is resiliently held in place longitudinally by means of a U-shaped spring element 11.
  • the holder portion 10 provides a complementarily formed seat for the base portion 2 of the lamp unit 1 and projects downwards into the housing as a box with side walls lOa-d and a recessed bottom wall lOe having a central hole lOf.
  • the latter serves to receive an upward projection 12a of an inside portion 12 of the lower housing part 6.
  • the inside portion 12 (cf . figs 2 and 3) extends upwardly from the lower end of the lamp base portion centrally therein so as to reach the bottom wall lOe of the holder portion 10.
  • the upward projection 12a e.g. of thermoplastic material
  • the upward projection 12a is deformed as a rivet by the influence of heat and pressure and thereby securely holds the lower and upper housing parts together.
  • the ring-shaped circuit card 8 surrounds the side walls lOa-d of the holding portion 10 and is securely clamped between the two housing parts at its peripheral edge portion, the clamping force being obtained from the central fastener, i.e. the rivet 12a.
  • the central fastener i.e. the rivet 12a.
  • two spring contact ter ⁇ minals 13a, 13b are mounted in registry with upper holes 14a and 14b, respectively, for receiving and electrically feeding the pins 4 of the lamp unit 1.
  • the upper housing part 9 has an outer, downwardly projecting flange 9a, which forms a'n extension of the exterior part of the wall and which is situated radially outwardly of an annular, downwardly facing rim surface 9b abutting the upper side of the external edge portion of the circuit card 8.
  • the lower housing part 6 has an opposite, upwardly facing annular rim surface 6b and a radially outward recess 6a, which receives the flange 9a so as to guide and hold the two housing parts in correct mutual positions providing a flush exterior cylindrical surface.
  • the opposite rim surfaces 9b, 6b extend radially a distance corresponding to at least half of the wall thickness of the respective housing part.
  • the circuit card 8 is simply laid onto the rim surface 6b with a recess 8b fitting onto a projection 6c (fig. 1), whereupon the upper housing part 9 is positioned with its flange 9a received in the circumferen ial recess 6a of the lower housing part 6. Then, the central rivet projection 12a is deformed so as to clamp the circuit card 8 between the opposite rim surfaces 6b, 9b and hold the two housing parts together.
  • the structure of the adapter as described above and illustrated in figs. 1-3, in particular with the ring-shaped circuit card 8 located adjacent to the upper end of the housing and all the bulky electrical components 8a located in the toroidal space surrounding the holder protion 10, enables a very compact total structure.
  • the cylindrical upper portion 6x of the lower housing part 6 merges into a frustro- -conical portion 6y, the axial length (or height) of which is only about one half (or less) of the axial extension of the lowest cylindrical portion 6z provided with the incadescent lamp base 7. Therefore, the total axial length (or height) of the adapter is about the same (or less) as the largest width or diameter thereof (in the cylindrical portion 6x) .
  • the electrical feeding of the circuit on the card 8 is accomplished by means of non-illustrated wires connected respectively to the threaded shell 7a (via a hole 6h in the frustro-conical portion 6y of the lower housing part 6) of the lamp base 7 and the bottom terminal 7b thereof (cf. fig 2).
  • the holding portion 10 of the upper housing part 9 is specifically designed to hold a standardized lamp unit 1 as shown in fig. 1, i.e. with a base portion 2 having a rectangular, elongated cross-section.
  • the adapter 5' is to be used for a lamp unit 1' having a base portion 2' with a square cross-sec ion, such a lamp unit 1' being shown in fig. 4, the upper part of the housing is replaced by a similar housing part 9' (see fig. 6) provided with a coorespondingly shaped holder portion 10' .
  • the circuit card (not shown in fig. 6) has to be conformed to the different locations of the pins 4' of the lamp unit 1' .
  • FIG. 4 A different type of adapter 15, primarily intended to be mounted in a lamp fitting and to be permanently connected to the supply terminals of the fitting, is illustrated in figs. 4 and 5.
  • the lamp fitting is of the kind having a ceramic base structure B with a cylindrical flange 16 having an internal thread 17 for screwed attachment of a transparent globe G with an externally threaded foot portion 18.
  • a lamp holder (not shown) for an incadescent lamp centrally inside the base structure B.
  • the conventional lamp holder is replaced by the adapter 15, which is permanently connected to the supply voltage screw head terminals 19,20 by means of contact sleeves 21,22 projecting downwards from a base plate 23 of the adapter 15.
  • the contact sleeves 21,22 are mechanically and electrically connected to a respective one of two resilient tongue means 24,25, each holding and electrically connecting an upright circuit card 26 and 27, respectively, the two cards being provided with the necessary circuits and components 26a, 27a for electrically feeding the lamp unit 1'.
  • Each card is also provided with an upper contact spring 28 and 29, respectively, arranged so as to make direct contact with the respective terminal pin 4' of the lamp unit 1'.
  • the upper housing part 30, the top of which is provided with a holder portion 10' conformed to the base portion 2' of the lamp unit 1', is shaped as a cylindrical cup, the lower rim surface 31 of which fits onto the outermost edge portion 32 of the base plate or lower housing part 23.
  • the central sleeve portion 23d Upon mounting the upper housing part 30 onto the base plate 23, the central sleeve portion 23d will be located directly underneath the bottom 10'e of the holder portion 10', so that the two housing parts 23,30 can be effectively secured to each other by means of a central screw 35.
  • the housing When mounting the adapter in the lamp fitting base B, the housing is taken apart and the base plate 23 is positioned so as to thread the contact sleeves 21,22 over the terminal screw heads 19,20, the necessary seal being provided by means of an annular washer 33.
  • the base plate 23 is secured to the base structure B by screw fasteners 34. Then, the cup-shaped upper housing part 30 (with the circuit cards 26,27 held in upper holding lugs 36 and 38, respectively) is mounted while letting the circuit cards 26,27 be positioned into the respective tongue means 24,25.
  • the upper housing part 30 is thereafter secured in the position shown in fig. 5 by means of the central screw 35, which is screwed with its thread into the sleeve portion 23d of the base plate 23.
  • the adapter is ready for use, and the lamp unit 1' can be inserted.
  • the transparent globe G can be mounted in the normal way.
  • the screws 34 are concealed inside the cup-shaped upper housing part 30, and the central screw 32 is concealed by the spring element 11.
  • the latter spring element can be designed so as to be detachable by the use of special tools only. Possibly, the spring element can also be so constructed that the lamp unit 1' can be detached by the use of additional special tools only, thus providing a theft preventing feature.
  • the incadescent lamp base 7 (in the embodiment shown in figs. 1-3 and 6) may be replaced by some other type of lamp base, e.g. with bayonet holding means.

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

Adaptateur de connexion d'une lampe à décharge compacte (1) à une tension domestique par l'intermédiaire d'un circuit adaptateur électrique (8, 8a). Ledit adaptateur comprend un logement à deux parties, comprenant une partie supérieure de logement (9) dotée d'une partie (10) de maintien placée centralement, afin de recevoir et de maintenir la partie de base de ladite lampe à décharge. Cette partie de maintien est saillante vers le bas dans ledit logement. Une partie inférieure de logement (6) est dotée de bornes (7a, 7b), pouvant être raccordées à la tension domestique. Ledit circuit adaptateur électrique comporte, sur au moins une carte à circuits (8), des composants électriques (8a) fixés à cette dernière dans un espace sensiblement toroïdal situé à l'intérieur du logement. La partie inférieure de logement (6) comporte une partie intérieure (12) s'étendant jusqu'au bas (10e) de la partie de maintien (10) de ladite partie de logement supérieure (9), et fixée à cette dernière par un moyen (12a) de fixation central, de manière à maintenir ensemble les deux parties du logement.
PCT/SE1989/000727 1988-12-16 1989-12-13 Adaptateur pour lampe a decharge compacte WO1990007208A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8804558-8 1988-12-16
SE19888804558A SE8804558D0 (sv) 1988-12-16 1988-12-16 Adapter foer kompaktlysroer

Publications (1)

Publication Number Publication Date
WO1990007208A1 true WO1990007208A1 (fr) 1990-06-28

Family

ID=20374261

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1989/000727 WO1990007208A1 (fr) 1988-12-16 1989-12-13 Adaptateur pour lampe a decharge compacte

Country Status (3)

Country Link
AU (1) AU4755390A (fr)
SE (1) SE8804558D0 (fr)
WO (1) WO1990007208A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992004580A1 (fr) * 1990-09-05 1992-03-19 Applied Lumens, Ltd. Lampe fluorescente
FR2678115A1 (fr) * 1991-06-18 1992-12-24 Sofrela Culot adaptateur de tension notamment applicable a la signalisation lumineuse.
EP0895022A3 (fr) * 1997-08-01 2000-11-29 General Electric Company Culot pour lampe fluorescente compacte
EP1107395A2 (fr) * 1999-12-07 2001-06-13 BJB GmbH & Co. KG Douille de lampe
FR2957723A1 (fr) * 2010-03-16 2011-09-23 Design4 Systeme pour l'alimentation electrique d'un dispositif d'eclairage a diodes electroluminescentes, dispositif d'eclairage a diodes electroluminescentes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004769A1 (fr) * 1984-04-09 1985-10-24 Nigg Juerg Procede de raccordement liberable d'appareils d'eclairage electriques, adaptateur respectivement ballast et circuit avec un generateur haute frequence
EP0179473A2 (fr) * 1984-10-25 1986-04-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Adaptateur pour une lampe à décharge à basse pression à culot unique
EP0198423A2 (fr) * 1985-04-12 1986-10-22 GTE Products Corporation Douille de lampe à base tournante
US4683402A (en) * 1985-04-25 1987-07-28 Truman Aubrey Adaptors for fluorescent lamps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004769A1 (fr) * 1984-04-09 1985-10-24 Nigg Juerg Procede de raccordement liberable d'appareils d'eclairage electriques, adaptateur respectivement ballast et circuit avec un generateur haute frequence
EP0179473A2 (fr) * 1984-10-25 1986-04-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Adaptateur pour une lampe à décharge à basse pression à culot unique
EP0198423A2 (fr) * 1985-04-12 1986-10-22 GTE Products Corporation Douille de lampe à base tournante
US4683402A (en) * 1985-04-25 1987-07-28 Truman Aubrey Adaptors for fluorescent lamps

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992004580A1 (fr) * 1990-09-05 1992-03-19 Applied Lumens, Ltd. Lampe fluorescente
FR2678115A1 (fr) * 1991-06-18 1992-12-24 Sofrela Culot adaptateur de tension notamment applicable a la signalisation lumineuse.
EP0895022A3 (fr) * 1997-08-01 2000-11-29 General Electric Company Culot pour lampe fluorescente compacte
EP1107395A2 (fr) * 1999-12-07 2001-06-13 BJB GmbH & Co. KG Douille de lampe
EP1107395A3 (fr) * 1999-12-07 2002-05-15 BJB GmbH & Co. KG Douille de lampe
FR2957723A1 (fr) * 2010-03-16 2011-09-23 Design4 Systeme pour l'alimentation electrique d'un dispositif d'eclairage a diodes electroluminescentes, dispositif d'eclairage a diodes electroluminescentes

Also Published As

Publication number Publication date
SE8804558D0 (sv) 1988-12-16
AU4755390A (en) 1990-07-10

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