WO2000051403A1 - Led low energy lamp system mounted on a common screw cap and plug-in cap - Google Patents

Abstract

The inventive LED low energy lamp system is characterized in that it has at least two LED's which serve as a luminous element. In addition, the inventive LED low energy lamp system will replace widely-used lamps such as general-purpose lamps, fluorescent lamps, discharge lamps, indicator and signal lamps, vehicle lights, halogen lamps, studio and projection lamps due to the use of prior art common screw caps or plug-in caps and to the high economic efficiency, to the extremely long serviceable life of the LED's, to the aspect of being almost completely maintenance free, and to the generation of a non-glare directable light with a luminosity factor equivalent to that of the filament lamp. The LED low energy lamp system can be configured as a one-part system or as a two-part system, whereby the one-part system can be inseparably comprised of a common screw cap or plug-in cap, of a ballast and of a respectively used LED support body, and the two-part system can be comprised of an adapter having an integrated ballast, a common screw cap and plug-in cap, as well as LED support bodies which can be plugged in separately, whereby the ballast can be externally attached in both systems. High intensity LED's can also be used as LED's. The shape of the LED support body can correspond to commonly known lamps and can correspond to the shape of geometric bodies such as a cylinder, cube, sphere, parallelepiped, cone, truncated cone, pyramid, etc. The shape of the LED support body corresponds to the desired shape of the lamp. The electronic ballast can be made from known microelectronic components such as SMD components, and from microcomputers comprising very high scale integration technology.

Description

 LED low-energy lamp system on a common screw and plug base

description

1. Purpose

The invention relates to the construction of a lamp which can be used for all areas of application in lighting and signaling technology. According to the invention, a low-energy lamp and thus an extremely environmentally friendly lamp system are described, in which at least two light-emitting diodes (LED) are used as the light source, i.e. Due to their high cost-effectiveness and very long service life, glare-free and directional light and a light output equivalent to incandescent lamps, the socketed lamps should in future be able to replace the previously widespread lamps such as general service lamps, fluorescent lamps, discharge lamps, indicator and signal lamps, vehicle lamps, halogen lamps To replace studio and projection lamps.

The state of the art is that in today's age of modern electronics, most of the above still Conventional lamps can be used for various lighting and signaling purposes.

The aim of the invention is therefore to maintain the luminosity of the above-mentioned lamps, their susceptibility to interference, to significantly reduce the sensitivity to impact and shock by also taking preconditions for increasing the service life and high efficiency of such lamps. The aim of this invention is to develop a low-energy lamp system based on LEDs, which is almost completely maintenance-free and which makes the replacement cycles inexpensive.

The object of the invention is therefore to develop an LED low-energy lamp system with customary screw or plug-in bases which, while ensuring a long burning time, enables a glare-free light of sufficient luminosity without tending to show signs of overheating. At the same time, the construction is to be carried out in such a way that operation can take place in the smallest of spaces, even if multicolored light emission is guaranteed. The areas of application are universal in all lighting and signal technology.

Due to the specific base, this LED low-energy lamp system can be used in all sockets currently in use, e.g. important versions such as

E 14; E 27; GX 16d; S 14s; S 14d; E 40; B 15d; G2 10; R 75; G 4 / GY 6; 35 l / GY 6; 10 l / G 53 / GU 5; 3 / GU 4; GX 24d-1; GX 24d-2; GX 24-d3; E 10; BA 15d; BA 20s. 2. Construction

According to the invention, an environmentally friendly LED low-energy lamp system with a customary screw or plug-in base is technically implemented as a replacement for the lamps described in item 1, for the first time at least two LEDs being attached to a corresponding geometric support body, which can, however, be separated at any time directly by means of the common screw or plug-in bases are fastened in the corresponding sockets and their supply voltage and current are applied by a correspondingly designed ballast.

According to the invention, the novel LED low-energy lamp system consists either of a one-piece system in which the base, the ballast and the LED carrier body are inseparably connected to one another, or of an adapter with a ballast and the base and a separately attachable LED carrier body (two-part system ). Common screw or plug-in bases (item 1) are used as bases. A ballast is arranged above it, which supplies the LEDs with the necessary voltage and current. The ballast can also be arranged externally, i.e. before the version. In the one-piece system, a transformer with a working and a similar replacement winding is used for the ballast. In this case, a failure of the work winding by the electronic unit is recognized and the replacement winding is put into operation and a corresponding signal transmitter is activated. This takes into account the long service life of the LEDs in this system.

In the application, all circuits that are designed as basic circuits must be specially dimensioned. This depends in particular on which components the different manufacturers have typed and approved for their products in terms of both quality and cost. A variant with an integrated circuit enables additional brightness control of all connected LEDs, whereby the LEDs are generally controlled by a resistor network or a circuit. This also enables a staggering of LED groups over different networks or wiring of the circuits. In addition to the operating time, the relationship between luminous flux and temperature is of particular interest for the utility value of the LED low-energy lamp system.

The energy converted in the circuit arrangement of the ballast can hardly be prevented from it due to the direct vicinity of the ballast and the LED carrier body. This thermal side effect is not intended, but it cannot be dissipated into the contact socket without effective heat sinking on the components involved.

In the way of such objectives after effective heat sinking are the limits of reducing the base and connection geometry. In the technical implementation of the solution, a ballast with minimal dimensions and high efficiency is realized, which in addition to space and cost savings are in the foreground. The LED carrier body is arranged on the ballast or on the base (with external ballast). The shape of the LED carrier body (e.g. polyacrylic) corresponds on the one hand to the lamps listed in section 1 and on the other hand to geometrical basic bodies such as cylinders, cubes, spheres, cuboids, cones, truncated cones, pyramids.

The shape to be used is e.g. due to the LED's own exit angle of the light of the desired illumination. adapted to a specific room.

There are LEDs, but primarily high-performance LEDs with light intensities currently up to 15,000 millicandela -mcd- with a current consumption of max. 20 mA are used.

The LEDs used in the LED low-energy lamp system in the future correspond on the one hand to the place of use or purpose of the system, and on the other hand to the latest, technically implemented state of development of the LEDs in terms of both the luminosity, the color of the emerging light and the current consumption and thus associated heat development. The LEDs can be connected in series or in parallel on a carrier material or the carrier material has the desired shape of the lamp. Furthermore, the LEDs can be applied to a carrier material corresponding to the respective geometric carrier body on the surface of the carrier body and fastened (e.g. as a development and circular area in the case of a cylinder).

Due to the better handling, the LEDs are then cast with a resin.

It is also possible to design a lamp that corresponds to the structure described. The shape of the carrier body corresponds to the desired shape of the lamp.

Here, too, the LEDs are either applied individually to a carrier material and attached in series or parallel connection, or the carrier material has the desired shape of the luminaire. Furthermore, the carrier material can be fitted very densely with appropriately designed waver (eg n- and p-type GaAsP layers with a special gate) or complete LEDs and then cast with a suitable resin. As a result, a very high brightness is achieved in a relatively very small area. 3. Mode of action

A desired voltage and current is applied to the base of the respective LED low-energy lamp of the system. Thanks to the specially designed ballast, the required voltage and current are applied to operate the LEDs.

The LED carrier body is designed for the corresponding application and application area (point 2) of the LED low-energy lamp system (e.g. basic geometric shape, light intensity, exit angle of the light, cooling behavior, one- or two-part system).

For use below a higher ambient temperature, the protective space created by the spacing of the LEDs from a protective cap that is almost transparent to the loss of light, can be filled with a medium that enables unimpeded light emission and at the same time isolates or stores heat. Appropriately, an annular space can also be integrated in the LED carrier body or in the luminaire base body, which is filled with a medium that dissipates heat and stores it. This enables temperature compensation under extreme operating conditions, and the LED low-energy lamp system becomes less susceptible to faults under extreme conditions.

The use of ^LED's is to realize especially advantageous where a constant light changes to shorten the burning time, which is a conventional lamp (pt. 1) may result in the conventional light sources generally the case.

A circuit regulates the brightness of the LEDs by regulating the power supply and thus dimmability.

Claims

LED low energy lamp system patent claims 1. The LED low-energy lamp system is characterized in that it has at least two LEDs as the lighting element and which, owing to the use of the screw or plug-in base currently in use, as well as the high level of economy, the very long service life of the LEDs and the almost complete freedom from maintenance, the generation of a glare-free and directional light with a light output equivalent to that of the incandescent lamp will replace the widely used lamps such as general service lamps, fluorescent lamps, discharge lamps, indicator and signal lamps, vehicle lamps, halogen lamps, studio and projection lamps. 2. The LED low-energy lamp system according to claim 1 is characterized in that it is designed both as a one-piece and two-piece system, the one-piece system inseparable from a common screw or plug-in base, the ballast and the LED used in each case Carrier body and the two-part system consist of an adapter with integrated ballast and common screw or plug base as well as separately attachable LED carrier body, and the ballast can be attached externally. 3. The LED low-energy lamp system according to claims 1 and 2 is characterized in that high-power LEDs are used as LEDs. 4. The LED low-energy lamp system according to claims 1 to 3 is characterized in that the shape of the LED carrier body on the one hand the conventionally known lamps and on the other hand the geometric bodies such as Cylinder, cube, sphere, cuboid, cone, truncated cone, pyramid, etc. 5. The LED low-energy lamp system according to claims 1 to 4 is characterized in that it is designed as a lamp which corresponds to the structure of claim 4 explained. The shape of the LED carrier body corresponds to the desired shape of the lamp. 6. The LED low-energy lamp system according to claims 1 to 5 is characterized in that the electronic ballast is made from known microelectronic components such as SMD components, microcomputers with maximum integration technology. 7. The LED low-energy lamp system according to claims 1 to 6 is characterized in that the transformer used has a working and a similar replacement winding and an electronic monitoring unit with monitoring, switching and signaling function. 8. The LED low-energy lamp system according to claims 1 to 7 is characterized in that a brightness control of the LEDs via the control of the power supply is generated by means of a circuit and thus a dimmability is given. 9. The LED low-energy lamp system according to claims 1 to 8 is characterized in that the LEDs are connected in series or in parallel, and furthermore there is also the possibility of staggering individual LED groups via different resistance networks or wiring of the circuits. 10. The LED low-energy lamp system according to claims 1 to 9 is characterized in that the LEDs are cast in a special resin. 11. The LED low-energy lamp system according to claims 1 to 10 is characterized in that it has devices that mitigate temperature differences. 12. The LED low-energy lamp system according to claim 11 is characterized in that a cooling space is integrated in the LED carrier body or lamp body, which is filled with a heat-absorbing agent. 13. The LED low-energy lamp system according to claim 11 is characterized in that the cooling space filled with a heat-absorbing agent is designed as a circular annular space, is arranged in the immediate vicinity of the LEDs. 14. The LED low-energy lamp system according to claim 1 is characterized in that in the LED's the respective inner contours of one of these LED's covering almost loss-free translucent protective cap is arranged and spaced apart from this and between the LED's and protective cap resulting from the spacing Protection room, which is filled with a heat-insulating or absorbing translucent medium.