WO2000070640A1 - Electric lamp - Google Patents
Electric lamp Download PDFInfo
- Publication number
- WO2000070640A1 WO2000070640A1 PCT/DE2000/000990 DE0000990W WO0070640A1 WO 2000070640 A1 WO2000070640 A1 WO 2000070640A1 DE 0000990 W DE0000990 W DE 0000990W WO 0070640 A1 WO0070640 A1 WO 0070640A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- contact plate
- plate
- lamp
- opening
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
Definitions
- the invention is based on an electric lamp according to the preamble of claim 1.
- the invention relates to lamps with both a screw base and a bayonet base.
- a usually round base plate contact plate is arranged centrally on the outer surface of the base plate and serves there as an external contact for connection to an electrical supply source.
- two elongated, usually oval or elliptical base plate contact plates are arranged as electrical external contacts on the outer surface of the base plate.
- the type of light source as such i.e. e.g. Filament or gas discharge does not matter.
- the invention consequently comprises both incandescent and discharge lamps which have bases with at least one base base contact plate.
- the task in this context is to produce reliable soldered connections with minimized solder consumption in the shortest possible time, ie with high-speed lamp production lines.
- the soldered connections are usually realized by dabbing on flux on the base contact plates and subsequent soldering, for example flame soldering.
- a soldering time typically a few tenths of a second, for example 500 ms, is available. In this short time, it is difficult to melt off the amount of solder previously required and to distribute it appropriately over the entire area of the contact plate.
- relatively high acceleration forces counteract the remaining of the liquid solder on the contact plate.
- a lamp with a base contact plate is disclosed.
- the base plate contact plate has several holes around a central opening - for carrying out and soldering a power supply to the contact plate. These are intended to reduce the flow of flux and solder to save material.
- the or each base base contact plate of the lamp has at least one opening.
- the material of the or each opening is bent into a tab such that the tab engages the base of the base.
- the or each opening and consequently also the or each tab preferably has an elongated shape.
- two or more openings are preferably arranged around the central opening for the power supply.
- the or each base base contact plate has an elongated shape defining a longitudinal axis.
- a longitudinal axis For example, oval, elliptical or at least elliptical-like shapes are typical.
- the two elongated openings are oriented essentially transversely to the longitudinal axis of the base plate contact plate.
- the tabs of the two elongated openings are bent essentially transversely to the longitudinal axis of the base plate contact plate. This has the advantage that the entire length of the elongate tabs protrude into the base base and consequently anchor the base base contact plate particularly well therein.
- the two tabs are bent such that they engage in the base bottom with respect to the longitudinal axis of the base base contact plate on opposite narrow sides of the elongated openings, in other words are arranged diagonally with respect to the contact plate. This reduces twisting or twisting of the contact plate, which is particularly important in the case of relatively thin base plate contact plates.
- an essentially circular base plate contact plate is arranged in the center of the base plate. At least two, preferably three, particularly preferably four elongated openings are arranged symmetrically around the opening arranged in the center of the base contact plate.
- the inventive design of the or each base-bottom contact plate makes it possible to use relatively thin contact plates.
- the thickness of a base plate contact plate is typically less than 0.5 mm, in particular less than 0.3 mm.
- FIG. 1 is a side view of an incandescent lamp according to the invention with a bayonet base
- FIG. 3a shows a top view of an elliptical base contact plate of the lamp from FIG. 1,
- FIG. 3b is a sectional view along the longitudinal axis of the contact plate from Figure 3a
- 3c is a sectional view of the contact plate from FIG. 3a along the line AA,
- FIG. 4a shows a plan view of an alternative base contact plate of the lamp from FIG. 1,
- FIG. 4b shows a sectional illustration along the longitudinal axis L of the contact plate from FIG. 4a.
- FIG. 1 shows a side view of an incandescent lamp 1 according to the invention with a bayonet base 2 in a schematic representation.
- the incandescent lamp 1 has a transparent, pear-shaped lamp bulb 3 made of glass, which is sealed in a gas-tight manner by melting the plate (not shown).
- a filament 4 is arranged in the interior of the lamp bulb 3.
- the incandescent filament 4 is connected to two power supply lines 5, 6, which are guided gas-tight to the outside through the melting of the plate (not shown).
- the plate melting of the lamp bulb 3 is in the bayonet base 2 arranged.
- the bayonet base 2 has a base sleeve 7 made of aluminum. and a base 8 made of glass.
- FIG. 2 shows a schematic plan view of the base 2 of the lamp 1 from FIG. 1 in the direction of the base base 8.
- two elliptical base plate contact plates 9, 10 with a thickness of 0.2 mm made of copper-zinc (CuZn) alloy are arranged. The small and large semi-axes are approx. 2.7 cm and 5 cm respectively.
- Each base plate contact plate 9, 10 has a central opening 11, 12.
- One of the two power leads 5, 6 is led through each opening 11, 12 to the outside, where it is connected to the associated base plate contact plate 9, 10 by means of solder 13 (not shown in FIG. 2 for reasons of clarity).
- FIGS. 3a-3c show a plan view, a longitudinal section and a section along the line AA of a 9 of the two base contact plates 9, 10 of the lamp from FIG. 1.
- Each base plate contact plate 9, 10 has two rectangular openings 14, 15 with the dimensions 0.5 mm by 28 mm.
- an opening 14, 15 or 16, 17 is arranged on the left and right of the central opening 11, 12 and in each case transversely to the large semi-axis.
- each opening 14, 15 (FIGS. 3a-3c) is bent into a tab 18, 19.
- Each tab 18, 19 is oriented substantially perpendicular to the base plate contact plate 9. Only the free ends 20, 21 of both tabs 18, 19 are each bent towards the underside of the contact plate 9 for reasons of stability. As a result, both the entire tab and the end of the tab itself are more stable.
- Each tab 18, 19 protrudes into the base 8 of the lamp 1 (not shown) and in this way anchors the base contact plate in the base 8.
- FIGS. 4a and 4b schematically show a top view and a longitudinal section of an alternative embodiment of an eye-shaped base base contact plate 22 for the lamp 1 shown in FIG. In contrast to the variant shown in FIGS.
- the two narrow sides 23a, 23b of each elongated opening 24 are not cut at right angles to the associated longitudinal sides 25, 26. Rather, the narrow sides 23a, 23b are cut essentially parallel to the respectively adjacent outer edges 27a and 27b of the contact plate 22. As a result, the two openings 24 are no longer rectangular but approximately trapezoidal.
- the material of each opening 24 is bent along its shorter longitudinal side 25 to form a tab 28, which is oriented perpendicular to the plane of the contact plate 22 and to its longitudinal axis L.
- the two tabs 28 formed in this way have the advantage, due to their trapezoidal shape, that they anchor themselves better in the base base 8 of the lamp 1, since in the finished lamp they are pressed back by the material of the base base 8 (not shown). Due to the cuts of the narrow sides 23a, 23b of the two openings 24 made parallel to the next adjacent outer edge 27a, 27b of the contact plate 22, a higher bending strength is achieved in comparison to a corresponding rectangular cut. Finally, the manageability of this base base contact plate 22 is also more favorable than in the exemplary embodiment shown in FIGS. 3a-3c. Since the two tabs 28 are bent along the long side 25 instead of along the narrow side, the tabs 28 are significantly shorter, but are also significantly wider. In any case, when these base plate contact plates 22 are handled, in contrast to the first-mentioned exemplary embodiment, there is no longer any mutual jamming when they are separated in a vibration conveyor.
Landscapes
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50007276T DE50007276D1 (en) | 1999-05-17 | 2000-04-01 | ELECTRIC LAMP |
EP00922463A EP1104580B1 (en) | 1999-05-17 | 2000-04-01 | Electric lamp |
AU42852/00A AU762875B2 (en) | 1999-05-17 | 2000-04-01 | Electric lamp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29908685.2 | 1999-05-17 | ||
DE29908685U DE29908685U1 (en) | 1999-05-17 | 1999-05-17 | Electric lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000070640A1 true WO2000070640A1 (en) | 2000-11-23 |
Family
ID=8073633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/000990 WO2000070640A1 (en) | 1999-05-17 | 2000-04-01 | Electric lamp |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1104580B1 (en) |
AU (1) | AU762875B2 (en) |
DE (2) | DE29908685U1 (en) |
ID (1) | ID27654A (en) |
WO (1) | WO2000070640A1 (en) |
ZA (1) | ZA200007484B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB444958A (en) * | 1934-09-22 | 1936-03-23 | Kazuji Shimada | An electric incandescent lamp |
GB1430972A (en) * | 1973-01-17 | 1976-04-07 | Gen E Ectric Co Ltd | Electric lamp caps |
EP0406948A1 (en) * | 1989-07-04 | 1991-01-09 | Koninklijke Philips Electronics N.V. | Electric lamp |
EP0488462A1 (en) * | 1990-11-30 | 1992-06-03 | Koninklijke Philips Electronics N.V. | Electric lamp |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2657364A1 (en) * | 1976-12-17 | 1978-06-29 | Siemens Ag | Electric incandescent lamp with anti-lock thread - has normal thread pattern interrupted by axial indentations formed by stamping before rolling of threads |
DE3400449A1 (en) * | 1984-01-09 | 1985-07-18 | Philips Patentverwaltung Gmbh, 2000 Hamburg | ELECTRIC LAMP WITH CRUSH FOOT STORED IN A SOCKET-BASED BASE |
-
1999
- 1999-05-17 DE DE29908685U patent/DE29908685U1/en not_active Expired - Lifetime
-
2000
- 2000-04-01 ID IDW20010107A patent/ID27654A/en unknown
- 2000-04-01 WO PCT/DE2000/000990 patent/WO2000070640A1/en active IP Right Grant
- 2000-04-01 EP EP00922463A patent/EP1104580B1/en not_active Expired - Lifetime
- 2000-04-01 DE DE50007276T patent/DE50007276D1/en not_active Expired - Fee Related
- 2000-04-01 AU AU42852/00A patent/AU762875B2/en not_active Ceased
- 2000-12-14 ZA ZA200007484A patent/ZA200007484B/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB444958A (en) * | 1934-09-22 | 1936-03-23 | Kazuji Shimada | An electric incandescent lamp |
GB1430972A (en) * | 1973-01-17 | 1976-04-07 | Gen E Ectric Co Ltd | Electric lamp caps |
EP0406948A1 (en) * | 1989-07-04 | 1991-01-09 | Koninklijke Philips Electronics N.V. | Electric lamp |
EP0488462A1 (en) * | 1990-11-30 | 1992-06-03 | Koninklijke Philips Electronics N.V. | Electric lamp |
Also Published As
Publication number | Publication date |
---|---|
EP1104580A1 (en) | 2001-06-06 |
EP1104580B1 (en) | 2004-08-04 |
ID27654A (en) | 2001-04-19 |
DE50007276D1 (en) | 2004-09-09 |
AU762875B2 (en) | 2003-07-10 |
AU4285200A (en) | 2000-12-05 |
DE29908685U1 (en) | 2000-09-21 |
ZA200007484B (en) | 2001-11-09 |
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