WO2001060119A2 - Lighting body - Google Patents

Abstract

A lighting body comprising a rounded, spherical, polygonal or elongate lighting part and a connector part which can be joined thereto for insertion in lampholders or other lighting devices. The lighting part (3) consists of a printed circuit board with serially mounted light emitting diodes (LED) (8) connected thereto. The printed circuit board is provided with an outer cover. The cover has openings. The light-emitting surface of the LED (8) is inserted in or though said openings. A control unit for incoming current is disposed in the lighting body. Said control unit converts a high-voltage alternating current into a pulsating low-voltage direct current supply for the LED.

Description

illuminant

description

The invention relates to luminous elements that can be operated with commercially available electrical sockets.

For a long time there has been a need for energy-saving light fixtures for use in lamp holders in both private and public areas. In recent years, numerous forms of energy-saving lamps have been developed which are characterized by low energy consumption, but which are relatively bulky and very sensitive. DE-U-93 07 862 describes luminous elements for neon signs, consisting of a housing with a translucent cover and an intermediate floor with light-emitting diodes (LED) arranged thereon, as well as a control circuit and a current source for the

LED known. However, such lamps are to be used as an alternative to arrangements with sockets, since they are usually connected directly to the power supply. GB-A-20 98 714 shows an indicator light with 7 light-emitting diodes, which are arranged on a disk-shaped printed circuit board, a power supply and a screw socket. DE-U-94 14 688 shows a display light provided with a socket, which has the shape of an incandescent lamp and is equipped with numerous LEDs. A two-part lamp with a connection part with a socket and a light part with LED is from GB-A- 22 39 306 known. It is common to these standard publications that they do not represent alternatives to the use of conventional incandescent lamps or energy-saving lamps, but rather are aimed at specific fields of application. The object of the present invention is to provide a luminous element with light-emitting diodes which is distinguished by extremely low energy consumption, which can be used with conventional lamp holders and in particular has features which distinguish it as an alternative to incandescent lamps and energy-saving lamps in the public and private sectors.

This object is achieved with the features mentioned in the characterizing part of the independent claims. Developments and advantageous embodiments of the invention are included in the further claims.

According to the invention, there is a luminous element with a rounded, spherical, polygonal or elongated luminous part, as well as a connection part that can be connected to it for use in sockets for lamps or other lighting devices, the luminous part consisting of a printed circuit board with light-emitting diodes (LED) connected to it in series. there is, the circuit board is spanned by an outer cover, the cover has openings, the LED with its light-emitting side are inserted into or through these openings and wherein a control unit for the incoming current is present in the luminous element, which has a high-voltage Converts alternating current into a pulsating low-voltage direct current for supplying the LED, characterized in that the control unit has a flip-flop module (U1, U2) which has a clock signal for actuating a switching unit, such as a field effect transistor (Q1), relay, Transistor or the like Chen generated, the switching unit releases the current clocked on the light emitting diodes (X-LED). Preferably there are at least two rows of LEDs and the direct switching unit controls the rows independently of one another. A pre-resistor can be designed as a potentiometer, via which the voltage can be regulated. According to an advantageous embodiment of the invention, a pushbutton or slide control is guided through the connecting part to the outside in order to set the potentiometer.

According to the invention, a luminous element with a rounded, spherical, polygonal or elongated luminous part, as well as a connecting part connectable to it for insertion in sockets of lamps or other lighting devices, the luminous part being made of there is a printed circuit board with light-emitting diodes (LED) connected to it in series, the printed circuit board being spanned by an outer cover, the cover having openings, the LED (8) with its light-emitting side being inserted into or through these openings and wherein in the luminous element there is a control unit for the incoming current which converts a high-voltage alternating current into a pulsating low-voltage direct current for supplying the LED, characterized in that the cover through which the light-emitting diodes are inserted from a plurality of flat or rounded surfaces consists. According to one embodiment of the invention, the cover is injection-molded in one piece. This means that the printed circuit board with the light-emitting diodes is folded or divided and, after being introduced into the cover, is spread out so that the LEDs protrude through the holes. Alternatively, the cover consists of several parts joined by gluing or welding. The cover can have a polygonal cross section, be constructed in a pyramid-like manner and generally have sections which are parallel to one another and arranged at an angle to one another.

According to the invention, there is a luminous element with a rounded, spherical, polygonal or elongated luminous part, as well as a connection part that can be connected to it for use in sockets for lamps or other lighting devices, the luminous part consisting of a printed circuit board with light-emitting diodes (LED) connected to it in series. there is, the circuit board is spanned by an outer cover, the cover has openings, the LED with its light-emitting side are inserted into or through these openings, a control unit for the incoming current being present in the luminous element, which has a high-voltage Converts alternating current into a pulsating low-voltage direct current to supply the LED, whereby the

Luminous part and the connection part have a plug or screw connection for their connection to one another, characterized in that an electrical plug connection is present between the light part and the connection part.

According to the invention is a Leuchtköφer with a rounded, spherical, polygonal or elongated lighting part, and a connectable with this connector for insertion into sockets of lamps or other lighting devices, the lighting part from a Leiteφlatine with this connected, connected in series light-emitting diodes (LED), the Leiteφlatine is spanned by an outer cover, the cover having openings, the LED with its light-emitting side being inserted in or through these openings and in the Leuchtköφer a control unit for the incoming current is available, which converts a high-voltage alternating current into a pulsating low-voltage direct current for supplying the LED, characterized in that a method for producing the luminous body from the steps

Prefabricate the Leiteφlatine with the LEDs to an essentially rigid

Luminous portion; - prefabricating the control unit,

Injection molding the cover and the connector,

Insert the light part into the connector and insert the control unit into the

Connector,

Connect the light part with the control unit and the cover with the connecting part.

According to an advantageous embodiment of the invention, during the injection molding of the cover, the bores for the light-emitting diodes are formed by cylinders, which are essentially moved against the main demolding direction during the demolding. The cylinders can be arranged partly parallel and partly at an angle to one another. Groups of cylinders can be arranged on common brackets. The cover can be formed in two parts from half shells.

According to the invention is alternatively a Leuchtköφer with a rounded, spherical, polygonal or elongated luminous part, as well as a connecting part connectable with this for insertion into sockets of lamps or other lighting devices, the luminous part consisting of a lead circuit board with light-emitting diodes connected in series with it (LED), wherein the Leiteφlatine is spanned by an outer cover, the cover has openings, the LED with its light-emitting side are inserted into or through these openings and wherein a control unit for the incoming current is present in the light body, which has a high-voltage alternating current in converts a pulsating low-voltage direct current for supplying the LED, characterized in that a method for producing the luminous body from the steps of prefabricating the lead circuit board with the light-emitting diodes into an essentially rigid luminous part; - prefabricating the control unit,

Injection molding of essentially flat individual parts of the cover with parallel bores for the light-emitting diodes and injection molding of the connecting part, assembly of the individual parts to form the finished cover;

Inserting the light part into the connection part and inserting the control unit into the connection part,

Connect the light part to the control unit and the cover to the connection part.

According to another embodiment of the invention, a light body with a rounded, spherical or elongated light part, as well as a connecting part connected thereto for insertion in sockets of lamps or other lighting devices, characterized in that the light part consists of a lead plate connected to it, in series connected light emitting diodes (LED) is that the Leiteφlatine is spanned by an outer cover, that the cover has openings, and that the LED with its light-emitting side are inserted in or through these openings, and that in the Leuchtköφer a control unit for the incoming current is present, which converts a high-voltage alternating current into a low-voltage direct current to supply the LED. The luminous body preferably has the contour (envelope curve) of commercially available light bulbs. The light part and the connecting part advantageously have a plug or screw connection for their connection to one another, in order to be able to exchange individual parts if necessary. The control unit has an input consisting of a series resistor and a bridge rectifier, the pulsating direct current obtained here being connected to the series switched LED is placed on the Leiteφlatine, and with each LED a tens diode (DZ) is connected in parallel. By this latter measure, current peaks are cut off and a more uniform glow can be achieved. Surprisingly, it has been shown by these inventive measures that light bulbs produce similar illuminants with LED technology can be. This has the advantages that the energy consumption is particularly low. Such a light body, the luminosity of which corresponds to a 60W light bulb, consumes only 2.4 W. The light body according to the invention also has an approximately 100 times longer lifespan than a light bulb and, in contrast to it, is very robust, with vibrations or falling from lower heights cannot cause any damage.

The invention is described in more detail below by way of example with reference to drawings. Show:

Figure 1 is a schematic sectional drawing of a first embodiment of a filament.

2 shows a plug connection between the light part and the connecting part of a light body;

3 shows a schematic section through a second embodiment of a luminous element;

FIG. 4 shows a plan view of a first variant of a light body according to FIG. 3;

FIG. 5 shows a plan view of a second variant of a light body according to FIG. 3;

Fig. 6 is a circuit diagram of the control of the LED;

7 shows a section through a housing of a light body;

Fig. 8 shows a control unit circuit for the Leuchtköφer.

1 consists of a connecting part 3 with a conventional screw socket, and a light part 2 plugged onto this. The light part 2 is here designed with a substantially spherical cover, which has holes for numerous light emitting diodes 4 , In the connector is the control circuit (not shown) for the LED and the cover is terminated below by a Leiteφlatine (not shown) on which the LEDs are arranged. Leiteφlatine and control circuit are electrically connected. There is a plug connection between the lighting part 2 and the connecting part 3, which can also be designed with locking means (for example, fertilize through Norsprünge and Hinterschnei).

In Fig. 2 it is shown that the connection part 3 and the lighting part 2 can be closed on their mutually facing sides with intermediate floors 5, 8, wherein a plug connection 6, 7 is provided as an electrical connection. In this way, the connecting part 3 can be connected to different lighting parts (brightness, shape).

3 shows an embodiment of a light body 1 ', in which the light part 2' consists of a sequence of flat sections arranged at an obtuse angle to one another, each of which has parallel bores for LEDs aligned parallel to one another. Fig. 4 shows a variant of this, in which the light part 2 "is octagonal, while Fig. 5 shows a blunt pyramid shape of the light body 2" '.

6 shows an exemplary circuit diagram. The mains voltage present, the supply of which is usually provided via the lamp holder, is first rectified by means of a rectifier D1 and then brought to the desired operating voltage for the light-emitting diodes by at least one series resistor R2. A voltage divider supplies a flip-flop module (U1, U2) with voltage.

Through the flip-flop module, by changing the environmental circuit (resistors R3, R4, R5 and R6, as well as capacitors C3 and C4), different clock signals can be generated, which are available at the output of Ul to control a switch-through unit of a defective transistor Q1 are set, whereby connected LED 'S (X-LED) can be operated with a voltage of a predetermined frequency, which preferably does not correspond to the mains frequency, because on the one hand when operating LEDs with 50HZ (mains frequency), these flicker and on the other hand higher frequencies significantly improve the efficiency and the service life of the LED 'S. By changing the frequency of the voltage that is present between OUT and GND to operate the LED 'S, its lighting duration and thus the brightness and current consumption are naturally influenced, which makes it possible to make the illuminating body shine particularly brightly or to reduce energy consumption by reducing the luminous intensity to a sufficient value by frequency adjustment.

By executing at least one of the resistors R3 to R5 or the capacitors C3 and C4, as changeable resistors or capacitors, the frequency of the voltage on the LEDs can also be influenced directly during operation of the luminous element, which represents a further embodiment variant ,

Fig. 7 shows a section through the housing 12, 13 of a Leuchtköφers 11, without control unit and Leiteφlatine. The housing consists of a connection part 12 with a connection thread 15 and a lighting part 13. The connection thread 15 at the lower end is identical to that of a commercially available light bulb and is screwed into a commercially available lamp holder. The connection thread 15 is glued or inserted into a funnel-like upper part of the connection part. The two housing parts, connecting part 12 and lighting part 13 have a firmly seated plug connection 4 to one another. The luminous part 13 bulges in a dome shape over the connecting part and has numerous circular openings on its circumference, into which the LED 18 is inserted with its luminous side towards the outside of the luminous body. The control unit is in the fully assembled state in the region of the cavity 16 of the connection part 12. The printed circuit board, which is practically designed in the form of a disk, is arranged transversely in the connection region 14 or close above or below, the LEDs 18 having correspondingly long feet have to.

As shown in FIG. 8, the control unit has a connection for an AC voltage of 230 V, which is regulated down via series resistors R1 and R2. The alternating current is converted into a pulsating direct current via a rectifier GR and fed to the LED (LD) connected in series. Tens diodes are connected in parallel to the LEDs in order to cut off the current peaks and to produce a more uniform glow. The control unit consisting of connections, resistors Rl, R2, capacitor C and the rectifier GR is arranged in the connection part 12 of FIG. 1. The light-emitting diodes LD and the tens diodes (DZ) assigned to them are arranged on the Leiteφlatine, or connected to it with connecting feet.

Claims

Expectations 1. Leuchtköφer (1) with a rounded, spherical, many angular or elongated lighting part, and a connectable with this connection part (3) for insertion in sockets of lamps or other lighting devices, the lighting part (2) from a Leiteφlatine with this connected, connected in series light emitting diodes (LED) (4), the Leiteφlatine is spanned by an outer cover, the cover has openings, the LED (4) with its light-emitting side are inserted into or through these openings, and wherein in the Leuchtköφer there is a control unit for the incoming current which converts a high-voltage alternating current into a pulsating low-voltage direct current for supplying the LED, characterized in that the control unit has a flip-flop module (U1, U2) which has a clock signal to control a switching unit, such as a field effect transistor (Ql), relay, transistor or the like s generated, the switching unit releases the current clocked on the light emitting diodes (X-LED). 2. Leuchtköφer according to claim 1, characterized in that at least two rows of LEDs (4) are present and that the switching unit controls the rows independently. 3. Leuchtköφer according to claim 1 or 2, characterized in that the at least one resistor is designed as a potentiometer. 4. Leuchtköφer according to claim 3, characterized in that for adjusting the potentiometer, a key or slider is guided through the connector to the outside. 5. Leuchtköφer (1) with a rounded, spherical, polygonal or elongated lighting part, and a connectable with this connection part (3) for insertion in sockets of lamps or other lighting devices, the lighting part (2) from a Leiteφlatine connected with this , There are series-connected light emitting diodes (LED) (4), the circuit board being spanned by an outer cover, the cover having openings, the LED (4) with its light-emitting side being inserted into or through these openings, and a control unit for the incoming current is present in the light body, which converts a high-voltage alternating current into a pulsating low-voltage direct current for supplying the LED, characterized in that the cover through which the light-emitting diodes (4) are inserted from a plurality of planes or rounded surfaces. 6. Leuchtköφer according to claim 5, characterized in that the cover is injection-molded in one piece. 7. Leuchtköφer according to claim 5, characterized in that the cover consists of several parts joined by gluing or welding. 8. Leuchtköφer according to claim 6 or 7, characterized in that the cover has a polygonal cross section. 9. Leuchköφer according to claim 8, characterized in that the cover (2 '") is at least partially pyramidal. 10. Leuchtköφer according to claim 6 or 7, characterized in that the cover (2 ') has mutually parallel and mutually angled sections. 11. Leuchtköφer (1) with a rounded, spherical, polygonal or elongated light part, and a connectable with this connection part (3) for insertion in sockets of lamps or other lighting devices, the light part (2) from a Leiteφlatine with this connected , In series connected light emitting diodes (LED) (4), the Leiteφlatine is spanned by an outer cover, the cover has openings, the LED (4) with its light-emitting side being inserted in or through these openings, wherein in the Leuchtköφer a control unit for the incoming current is available, which converts a high-voltage alternating current into a pulsating low-voltage direct current for supplying the LED, the luminous part (2) and the connecting part (3) having a plug or screw connection for their connection to one another have, characterized, that there is an electrical plug connection between the light part and the connecting part. 12. Leuchtköφer (1) with a rounded, spherical, polygonal or elongated lighting part (2), and a connectable with this connector (3) for insertion in sockets of lamps or other lighting devices, the lighting part (2) from a Leiteφlatine with this connected, connected in series light emitting diodes (LED) (4), the Leiteφlatine is spanned by an outer cover, the cover having openings, the LED (4) with its light emitting side being inserted into or through these openings , and in which a control unit for the incoming current is present in the light body, which converts a high-voltage alternating current into a pulsating low-voltage direct current for supplying the LED, characterized in that a method for producing the luminous body from the steps Prefabricating the Leiteφlatine with the light-emitting diodes to an essentially rigid lighting part; - prefabricating the control unit, - injection molding of the cover and the connecting part, Inserting the light part into the connection part and inserting the control unit into the connection part, - The lighting part is connected to the control unit and the cover to the connecting part. 13. Leuchtköφer according to claim 12, characterized in that during the injection molding of the cover, the bores for the light-emitting diodes are formed by cylinders, which are moved substantially against the main demolding direction during demolding. 14. Leuchtköφer according to claim 13, characterized in that the cylinders are arranged partially parallel and partially at an angle to each other. 15. Leuchtköφer according to claim 13 or 14, characterized in that groups of cylinders are arranged on common brackets. 16. Leuchtköφer according to one of claims 12 to 15, characterized in that the cover is in two parts. 17. Leuchtköφer according to claim 16, characterized in that the cover consists of half-shells. 18. Leuchtköφer (1) with a rounded, spherical, polygonal or elongated lighting part, and a connectable with this connecting part for insertion in sockets of lamps or other lighting devices, the lighting part (2) from a Leiteφlatine with this connected in series Switched light emitting diodes (LED) (4), wherein the Leiteφlatine is spanned by an outer cover, the cover has openings, the LED (4) with its light-emitting side are inserted into or through these openings, and wherein in the Leuchtköφer a control unit for the incoming current is present, which converts a high-voltage alternating current into a pulsating low-voltage direct current for supplying the LED, characterized in that a method for producing the luminous body from the steps Prefabricating the Leiteφlatine with the light-emitting diodes to an essentially rigid lighting part; Prefabricating the control unit, Injection molding of essentially flat individual parts of the cover with parallel bores for the light-emitting diodes and injection molding of the connecting part, - joining the individual parts to form the finished cover; Inserting the luminous part into the connecting part and inserting the control unit into the connecting part, Connect the light part with the control unit and the cover with the connecting part. 19. Leuchtköφer with a rounded, spherical or elongated lighting part, and a connecting part connected thereto for insertion in sockets of lamps or other lighting devices, characterized in that the lighting part (13) from a Leiteφlatine with this connected in series switched light emitting diodes (LED) (18), wherein the Leiteφlatine is spanned by an outer cover, the cover has openings, and wherein the LED (18) are inserted with their light-emitting side in or through these openings, and in that Leuchtköφer a control unit for the incoming current is available, which converts a high-voltage alternating current into a low-voltage direct current to supply the LED. 20. Leuchtköφer according to claim 19, characterized in that it has the contour (envelope) of commercially available light bulbs. 21. Leuchtköφer according to claim 19 or 20, characterized in that the lighting part (13) and the connecting part (12) have a plug or screw connection (14) for their connection to one another. 22. Leuchtköφer according to one of the preceding claims 19-21, characterized in that the control unit has an input consisting of a series resistor and a bridge rectifier. 23. Leuchtköφer according to claim 22, characterized in that the pulsating direct current obtained is applied to the LED connected in series, and that a tens diode (DZ) is connected in parallel to each LED.