DE20009633U1 - Universal LED lamp for indoor and outdoor lighting in mains operation - Google Patents

Description

PB 2120/GM 25 May 2000

Applicant: INSTA ELEKTRO GMBH & CO. KG 58511 Lüdenscheid

Universal LED lamp for indoor and outdoor lighting in mains operation

The invention relates to a universal LED lamp for indoor and outdoor lighting in mains operation.

For certain lighting tasks, especially for orientation lighting, LED lighting devices are increasingly being used due to their long service life. For example, a lamp with low power consumption is known from the published patent application DE 196 51 140 A1. The disadvantage here is that several colored semiconductor elements are needed to produce white light. Another disadvantage of the available LED lighting devices is that they require a diffuser to evenly illuminate surfaces. Another disadvantage is that standard sockets are provided, which take up a lot of space. Due to the mains operation, especially outdoors, lamp housings are usually required.

In a further development of the known device, the invention is based on the object of developing an inexpensive, universal lighting module which can be used as a lamp or luminaire for lighting purposes indoors and outdoors without additional operating devices such as transformers or switching power supplies.

Further details and advantages of the subject matter of the invention emerge from the following description and the accompanying drawings, in which preferred embodiments are shown with the necessary details. They show:

Fig. 1: in section a schematic representation of the inventive
object;

Fig. 2: perspective view of a lighting module with
Mounting springs,

Fig. 3: perspective view of a hexagonal embodiment with
Threaded bushings on the back of the lighting module;

Fig. 4: a schematic cross-sectional view of the inventive
object which has a basic shape as a cone;

Fig. 5: a plan view of the object according to the invention, in which the
Fasteners are listed as dovetail groove;

Fig. 6: a schematic cross-sectional view of the inventive

An object in which the LEDs are completely encapsulated, but a lens-like formation of the surface above the LED positions creates a desired optical effect.

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Fig. 7: a schematic cross-sectional view of the inventive
Object in which the module is integrated into a housing.

Figures 1 to 7 show a schematic of an embodiment according to the invention with details of this. The drawing shows an LED arrangement (1) on a circuit board (2) corresponding to the LED color and an integrated capacitor power supply (3) for mains operation of the LED. Electronic control is implemented via a conventional phase-cut or phase-cut dimming circuit (not shown). The casting compound of the lighting module (4) can be milky, colored or clear. So that the casting material does not cancel out the optical effect of tightly focused LED lenses, in addition to full casting for wide beam angles, it is also intended to allow the lenses of the LED to emerge from the casting compound for narrow beam angles. This largely avoids transmission losses. With full casting and with housings, it is also sensible to design the light-emitting surface in such a way that a special optical effect (Fig. 6) is created via a lens-like shape. The casting, the housing and the cable material are designed to be waterproof or water-protected for outdoor applications. In order to provide strain relief and kink protection, a second, more flexible casting compound can be applied around the connecting cable before casting. Fastening elements (6) are integrated into the lighting module so that the module can be held in place with screws or springs, for example. The lighting module can be designed in any shape, so that the module can be used as a lamp or as a light depending on the application and design. For manufacturing and installation reasons, the round design is preferred.

In order to achieve a clean finish in walls, ceilings, floors, etc., a peripheral edge (5) is provided on the light-emitting surface. This edge can also be used for installation in luminaire housings for sealing purposes or for installation situations.

The invention is not limited to the potted design described. Instead of the potting material, it can also be constructed from housing parts (Fig. 7).

Claims (7)

1. Lighting module ( 4 ) made of a casting compound or of housing parts for illuminating surfaces or rooms, in which light-emitting semiconductor elements (LED) are provided as light sources ( 1 ) on a circuit board ( 2 ), wherein the power supply and control of the LED is carried out via a capacitor power supply unit ( 3 ) which is directly connected to the 230 volt network. 2. Lighting module according to claim 1, characterized in that the LED lenses emerge from the potting compound. 3. Lighting module according to claim 1, characterized in that the lighting module ( 4 ) has a peripheral edge ( 5 ) for covering, sealing and fastening purposes. 4. Lighting module according to claim 1, characterized in that the module has fastening elements ( 6 ) which are integrated into the potting compound. 5. Lighting module according to claim 1, characterized in that the light-emitting surface above each lighting point is lens-shaped. 6. Lighting module according to claim 1, characterized in that the circuit board corresponds to the color of the emitted LED light. 7. Lighting module according to claim 1, characterized in that the potting around the connecting cable is made of a second, more flexible potting compound.