WO2007131882A2

WO2007131882A2 - Electric bulb

Info

Publication number: WO2007131882A2
Application number: PCT/EP2007/054275
Authority: WO
Inventors: Peter Niedermeier
Original assignee: Osram Gesellschaft mit beschränkter Haftung
Priority date: 2006-05-16
Filing date: 2007-05-03
Publication date: 2007-11-22
Also published as: DE202006007819U1; WO2007131882A3

Abstract

The invention relates to an electric bulb comprising at least one light source (2, 3, 4) and a base plate (1) on which the light source (2, 3, 4) is arranged. Said base plate (1) is arranged in such a way that it can be used for electrical contacting in a bulb holder for a festoon bulb.

Description

description

Electric lamp

Technical area

The present invention relates to an electric lamp with at least one light source.

State of the art

Electric lamps, which are designed as Soffittenlampen in incandescent design or as Soffittenlampen with a fitting with light emitting diodes (LED) are known. Such lighting elements in the form of Soffitten ^¬ lamps include in a known manner a luminous element and a first and a second connection element. The filament in these Soffittenlampen is cylindrical in the usual way, wherein at the opposite ends of this filament each An ^{¬ closing} element is attached, which are designed as connection caps. The connection ^{caps are} conically shaped in their end ^regions .

In festoon lamps, which are equipped with LEDs, the embodiments are generally such that these terminal caps or the end caps and partly also formed of glass filament are used to construct such a festoon lamp. The manufacture and production of such an electric lamp is therefore relatively expensive and therefore costly. Presentation of the invention

The present invention is therefore an object of the invention to provide an electric lamp, which can be made ^¬ a ^simple and low-effort and compatible with a festoon lamp can be used.

This object is achieved by an electric lamp having the features of claim 1.

An electric lamp according to the invention comprises at least one light source and a plate-like motherboard on which the light source is arranged. The motherboard is designed such that it can be used for electrical contacting in a lamp holder designed for a festoon lamp. By such ^{Ausgestal ¬} tion of an electric lamp, this can be easily and inexpensively manufactured and manufactured and used compatible with a festoon lamp. In particular, the arrangement of a specifically designed motherboard allows it as a base element attaching weite ^¬ rer parts and components of the electric lamp and also ensures the compatible use in lamp holder, which are also designed for conventional Soffittenlampen. Due to the individual Formge ^¬ the plate-like motherboard exercise can also be a reliable and secure establishment of the electric lamp are made possible in this lamp holder and a reliable electrical contact can be achieved.

Preferably, the plate-like motherboard at least ^¬ an end portion, which is designed for use in the lamp holder. Advantageously, the plate-like motherboard is designed such that two opposite end portions are formed so that they can be used in corresponding areas of application of the Lampenhal ^¬ ester. As a result, a symmetrical configuration of the plate-like motherboard can be achieved.

Preferably, the contemplated for use in the lamp holder regions, in particular, the two end portions lying opposite ^¬, the motherboard tapers ^¬ forms, in particular, spike-like designed. As a result, a shaping can be achieved which is similar to or even equal to the use of the electric lamp in the lamp holder of a conventional festoon lamp which has a cylindrical luminous element and connecting caps designed for electrical contacting at the opposite end regions of this luminous element ,

Preferably, the at least one light source is arranged on an upper side of the motherboard, wherein further components of the electric lamp can be attached to an underside of the motherboard. As a result, the motherboard can thus be provided on both opposite flat sides with other elements of the electric lamp, whereby a double-sided design can be realized. As a result, the electrical contacts can also be made contact-proof, since, analogously to the usual plated-through holes through the motherboard, it is also possible for the areas of the motherboard intended for use in the lamp holder to be made electrically contacting. Preferably, further electronic components and / or cooling elements can be attached to the underside of the plate-like motherboard. By such ^{Ausgestal ¬} tion, in which parts and components of the electric lamp can be arranged on several sides of the motherboard, a very compact and space-saving electric lamp can be designed.

In the motherboard electrical PLEASE CONTACT ^¬ are preferably formed stanchions with which the arrival at the top-level light source arranged on the underside of further elements, in particular electronic components, are contacted.

Preferably, the formed for use in the lamp holder portion is the mother board with flat edge areas formed, wherein the edge regions have a Metalli ^¬ tion, may be produced whereby an electrical contact of the electric lamp in the lamp holder. In addition to a positionally stable arrangement of the electric lamp in the lamp holder, thereby a reliable electrical contact can be achieved.

By the attachment of other electrical components, for example control and / or Regelungselekt ^¬ ronik, on the underside of the motherboard also sätzlicher to ^¬ mounting location can be provided.

Preferably, the electric lamp comprises at least one optical element, in particular a lens, which influences the beam direction of the light beams emitted by the light source with regard to their further propagation. As a result of the optical element, light bundling or light scattering, for example, can thereby be achieved the light rays emitted from the light source can be achieved.

The optical element can be arranged directly at the light source ^¬ or also be positioned spaced apart from it. Also reflector elements or mirrors ^¬ elements may be provided as optical elements.

Preferably, the electric lamp comprises a control and / or regulating unit for controlling and / or regulating at least the brightness and / or at least the color locus of the light source. The at least one light source is formed as preferential ^¬ as a light emitting diode. Power LEDs, in particular so-called ^Dragons® , can also be provided.

The light source can be designed to produce white light.

Preferably, the electric lamp has a plurality of light sources, in particular three light emitting diodes, wherein one light emitting diode for generating light signals of green light color, a second light emitting diode for generating light rays of the blue light color and a third Leuchtdi ^¬ ode for generating light beams of red light color, are formed.

The electric lamp can be manufactured in a simple production in an electronics production with already existing manufacturing device. In particular, when the light source is designed as a light-emitting diode, it is generally necessary to provide at least one series resistor, which can then also be equipped on the motherboard. For current limitation, a switching regulator can also be used. be used. With such a switching regulator, it is then also possible to realize an electric lamp with an LED assembly which is capable of functioning both with a power supply of approximately 24V and with an energy supply of approximately 12V.

Brief description of the drawings

In the following, embodiments of the vorlie ^¬ constricting invention will be explained in more detail with reference to the schematic drawings. Show it:

FIG. 1a is a plan view of a schematic representation of a motherboard of an electric lamp according to the invention;

Figure Ib is a side view of the motherboard according to Figure Ia;

Figure 2 is a plan view of a further embodiment of a portion of an electric ^¬ inventive lamp;

3a shows a plan view of a further embodiment ei ^¬ nes portion of an electric lamp according to the invention;

FIG. 3b shows a side view of the illustration according to FIG. 3a; and

Figure 4 is a side view of a further embodiment of a portion of the electric lamp according to the invention. Preferred embodiment of the invention

In Figure Ia, a plate-like motherboard 1 of an electric lamp is shown in a plan view. The motherboard 1 is elongated in the embodiment and has a first end portion 11 and a second end portion 12. Both opposite end portions 11 and 12 are tapered and pointed in the embodiment shown in Figure Ia. As a result, the plate-like base plate 1 has a basic structure which is at least similar to the shape of a conventional festoon lamp which has a tubular luminous body with conical terminal caps or end caps, whereby the present electric lamp can be achieved in a lamp holder is designed to accommodate a conventional festoon lamp, compatible with this Sof ^¬ fittenlampe can be used in this lamp holder.

In Figure Ib is a side view of the base board 1 is shown ge ^¬ Mäss Figure Ia, which has a planar top and a planar bottom Ia Ib. The Endberei ^¬ surface 11 and 12 each have flat edge regions IIa and IIb and 12a and 12b.

FIG. 2 shows a plan view of a motherboard 1 of an electric lamp I, in which three light sources are arranged on the upper side 1a. The three light sources are formed in the embodiment as light emitting diodes 2, 3 and 4 and spaced from one another in Rei ^¬ hey arranged. The first light emitting diode 2 is in the process He ^¬ generation green light signals light color trained. The second light-emitting diode 3 is designed to generate Lichtsig ^¬ cal blue light color, wherein the third light-emitting diode 4 is designed to generate light signals of red light color.

In Figure 3a, a further embodiment of an electric lamp 2 is shown, in which on the motherboard 1 and in particular on the upper side Ia in contrast to the illustration of Figure 2, three optical elements, which are formed as lenses 5, 6 and 7 are arranged. In the embodiment shown, these lenses 5, 6 and 7 are each assigned to one of the light-emitting diodes 2, 3 and 4.

As can be seen in the illustration according to FIG. 3 b, which shows a side view of the embodiment according to FIG. 3 a, the optical lenses 5, 6, 7 in the exemplary embodiment have a spherical shape and are arranged directly on the respective light-emitting diodes 2, 3 and 4 , Both the number of light emitting diodes 2, 3 and 4 and the number of optical lenses 5, 6 and 7 as well as their design and arrangement are merely exemplary and may vary in many ways.

In addition, it can be seen in the illustration according to Figure 3b, that the edge regions IIa and 12a as well as the edge regions IIb not shown, and are provided with egg ^¬ ner metal layer 12b. As a result, optimum electrical contacting of the end regions 11 and 12 in the lamp holder can be achieved. The end regions 11 and 12 may also at least partially on the upper side ^¬ Ia and / or Ib of the bottom of a metallic coating loading for electrical contacting comprise. In all the embodiments shown, the insertion of the electric lamp is carried out in a corresponding lamp holder, which is also designed for a conventional festoon lamp, such that the end portions 11 and 12 of the motherboard 1 are inserted into corresponding ^{Anschlußbe ¬} rich of the lamp holder. As a result, in addition to the electrical contact, the positionally stable mounting of the motherboard 1 and thus also of the electric lamp I or II can be achieved. In particular, the electrical contacting takes place via the metal-coated edge regions IIa, IIb and 12a and 12b.

FIG. 4 shows a side view of a further embodiment of an electric lamp III. In addition to the arrangement of a plurality of light-emitting diodes 2, 3 and 4 on the upper side 1a of the motherboard 1, a cooling element 8 is arranged on the lower side 1b.

Which may in the embodiments according to the illustrations of Figures 2, 3a, 3b and elements shown 4 also with- be combined with each other and may each also ^¬ additionally further electronic components on the upper ^¬ page Ia and / or the bottom Ib of the base board 1 to be arranged. In particular, at least one control and / or regulating unit can be arranged, which is designed in particular for controlling and / or regulating the brightness and / or the color location of the light-emitting diodes 2, 3 and 4. In the base board 1 is not turned Darge ^¬ can be formed electrical vias to be able to achieve an electrical contact with components on the top surface Ia with components on the bottom Ib. In addition to the parts and components of the electric lamp I, II and III shown can also be provided that, for example, all the light sources of this electric lamp are covered by a housing.

The design of the plate-like motherboard 1 is not to be regarded as conclusive by the schematically illustrated embodiments, but it can also be provided here various shapes. It is essential, however, that the motherboard is designed such that it can be used in a lamp holder, which is provided for conventional Soffittenlampen.

Claims

claims

1. Electric lamp with at least one light source

(2, 3, 4) and a plate-like motherboard (1), on which the light source (2, 3, 4) is arranged, wherein the motherboard (1) is formed such that it is designed for electrical contacting in a festoon for a lamp Lamp holder is used.

2. An electric lamp according to claim 1, characterized in that the plate-like base plate (1) has at least one end portion (11, 12) which is designed for use in the lamp holder.

3. An electric lamp according to claim 2, characterized in that the plate-like motherboard (1) has two opposite ^¬ lying end portions (11, 12), which are designed for use in the lamp holder.

4. Electric lamp according to one of the preceding claims, characterized in that the intended use in the lamp holder areas (11, 12) of the motherboard (1) tapers ^¬ forms, in particular point-shaped, are.

5. Electric lamp according to one of the preceding arrival claims, characterized in that the at least one light source (2, 3, 4) on a

Top (Ia) of the motherboard (1) is arranged and on a lower side (Ib) of the motherboard (1) further components (8) of the electric lamp (I, II, III) are attachable.

6. An electric lamp according to claim 5, characterized in that on the bottom (Ib) further electronic compo ^¬ elements and / or cooling elements (8) are attachable.

7. An electric lamp according to claim 5 or 6, characterized in that in the motherboard (1) at least one electrical contact is formed, with which the at the top (Ia) arranged light source (2, 3, 4) with at the bottom ( Ib) arranged elements is contactable.

8. An electric lamp according to one of the preceding claims, characterized in that the portion (11, 12) of the motherboard (1) designed for use in the lamp holder has a metallization at edge regions (Ha, IIb; 12a, 12b).

9. Electric lamp according to one of the preceding claims, characterized in that at least one optical element, in particular a lens (5, 6, 7), is formed, through which the beam direction of the light source (2, 3, 4) e- mediated light rays can be influenced.

10. Electric lamp according to one of the preceding claims, which is a control and / or regulating unit for controlling and / or regulating the brightness and / or the color locus of the light source (2, 3, 4).

11. Electric lamp according to one of the preceding claims, characterized in that the light source as a light emitting diode (2, 3, 4) is ^{ausgebil ¬} det.