KR101981376B1 - Led module - Google Patents

Abstract

An LED module is used for insertion into a luminaire, the LED module having a plurality of LEDs and having a terminal which can be inserted into a socket of the luminaire to replace a conventional luminaire. The LED module is in particular characterized by having at least two terminals, each of which can be inserted into a socket of a luminaire for the luminaire.

Description

LED module {LED MODULE}

The present invention relates to a light-emitting diode module for insertion into a luminaire, the LED module comprising a plurality of LEDs and to be inserted into sockets of the luminaire to replace conventional lighting means. It has terminals that can

LED modules of this kind are known, for example from DE 299 00 320 U1, wherein LED lamps with an outer geometry consisting essentially of fluorescent light bulbs are disclosed. The LED lamp has an electrical terminal on each of its end sides in the longitudinal direction, which terminals can be inserted into custom plug-in sockets for fluorescent bulbs. A plurality of LEDs are provided in rows on the printed circuit board, and the printed circuit board further has reverse voltage protection in the form of diodes to prevent current from flowing in the wrong direction through the LEDs. Since the electrical supply for the fluorescent bulb is fundamentally distinguished from that for the LEDs, a cable set is additionally provided, with which a ballast provided for the fluorescent bulb can be connected and thus the bulb has the built-in voltage of the device. It can be directly connected to the circle, which means a direct current source.

Explosion-proof luminaires using LEDs as light sources are known from DE 10 2004 044 166 B4, where a plurality of LEDs are fixedly mounted on a lighting means carrier strip and a plurality of lighting means carrier strips mounted in parallel on the lighting means carrier. However, this device is not suitable for the operation of fluorescent light bulbs.

It is an object of the present invention to provide an LED module that is inserted into a luminaire to replace conventional lighting means.

As a result, it is an object of the present invention to provide an LED module which is inserted into a luminaire to replace the conventional lighting means, by which the light output can be improved.

This can be obtained as a result of an LED module having at least two terminals, whereby the two terminals can also be inserted into two other sockets of the luminaire for the luminaire. Preferably, one of the two terminals can be inserted into one socket of the luminaire for the luminaire, while the other of the two terminals is also inserted into another socket of the luminaire for the additional luminaire. It can be inserted, so that the LED module can replace two separate lighting means. As a result the LED module has at least two terminals, each of which can also be inserted into at least two distinct sockets of the luminaire as a replacement for at least two separate lighting means. Since the LED module does not replace only one lighting means, it is possible to use the space of the at least two replaced lighting means and the interspace provided between the conventional lighting means as space for the LED module. In the pluralities of conventional luminaires, a plurality of conventional luminaires are provided, whereby interspaces are theoretically arranged between the luminaires to allow heat to dissipate from the individual luminaires. However, the LEDs are small point light sources and for this reason they must be provided in plural. Since the LEDs in the framework of the LED module are also provided in the area between the replaced conventional lighting means, it is possible to obtain improved lighting output as a result of the guidance of the present invention.

If such an LED module replaces a luminaire, such as a fluorescent lamp, the LED module for replacing this luminaire is supported by rotating about the sockets between the release position and the locking position. do. That is, the LED module is inserted between or into the sockets using contacting and twisted between the release and locking position by means of twisting the LED module or at least its contacting, ie its terminals. Is twisted. In the release position the LED module can be removed from or inserted into the base body. In the locked position the LED module is localized on the base body.

In the LED module for replacing the two lighting means, in particular it is generally arranged in parallel with each other in the base body, mainly without twisting the LED module. But instead, it is possible to twist the sockets or holders in the base body to release or install the LED module in this way. Thus, corresponding sockets of the luminaire may optionally have an insertion channel which serves to insert the terminals or contacts of the LED module. In this case a latching or locking mechanism can be assigned to the respective sockets and in particular the insertion channel. As previously described, twisting the socket may occur in addition to the latching or locking mechanism or, optionally, to install or remove the LED module via the insertion channel.

In this connection, in the same way it can be envisioned that the LED module has a locking mechanism assigned to its terminals or contacts, after which the terminals are inserted into a socket or into a holder on the base body and then used. The module can then be installed on the base body.

In total, the insertion of the LED module into the base body for electrical connection and in particular the mounting of the terminals to the holders can be carried out in a simple manner, whereby the LED module can be simultaneously installed in the base body by means of such insertion. Can be.

Since there is no need to insert a plurality of LED modules and instead a plurality of conventional lighting means are replaced by one LED module, assembly to insert such one LED module into the luminaire is further simplified. This can accelerate the replacement of conventional lighting means by LED modules as well as the replacement of LED modules in luminaires.

In the context of the guidance of the present invention, conventional lighting means are mainly fluorescent lamps, but moreover incandescent bulbs, halogen bulbs and fluorescent tubes. The term "terminal" means the mounting socket of an incandescent bulb or two male contacts on one side of the totality of a terminal, for example a fluorescent lamp.

The terminals can preferably be inserted into sockets for a fluorescent bulb. For this purpose, the terminals are formed in a manner that conforms to have one terminal on one side of the fluorescent bulb, ie mainly two male contacts are separated from each other. LED modules are mainly used as a replacement for universal fluorescent light bulbs with 18W to 58W output.

In a preferred embodiment, at least two terminals are provided on one side of the LED module and in each case at least two corresponding terminals are provided on the opposite side of the LED module. Corresponding terminals are provided primarily at the corresponding positions of the particular opposite side of the LED module. This means that the corresponding terminals are arranged to be symmetrical in one of the centred symmetry planes parallel to the opposite sides.

The LED module mainly has a length greater than its own height and width, so that the terminals are provided at the distal sides in the longitudinal direction. A plurality of parallel fluorescent lamps, mainly two parallel fluorescent lamps, can be replaced by the LED module as a result. The LED module is furthermore preferably at least twice as wide as its own height.

In a preferred embodiment the terminals are used to install the LED module in the luminaire. The terminals not only enable the electrical supply as a result, but also localize and hold the LED module in position in the lamp.

In order for the LED module to be additionally or exclusively installed in the luminaire, additional mounting means are optionally or additionally provided on the LED module and / or in the corresponding luminaire.

In an embodiment, only some of the terminals are designed to flow current. Since the LED module replaces a plurality of lighting means, this is not essential depending on the energy supply of each lighting means. As a result, power is supplied through only one terminal. Optionally, one terminal can also be regarded as a positive pole of direct current voltage and the other terminal as a negative pole of direct current voltage.

In an embodiment each terminal has two male contacts that are inserted into a socket of a corresponding luminaire. This enables conventional fluorescent lamps to be replaced by LED modules.

The terminals are preferably arranged at two opposite sides in the longitudinal direction of the LED module, each also at the same level and the same distance to the center in the transverse direction of the LED module.

In an embodiment the terminals can be twisted relative to the LED module so that the terminals are installed in the sockets of the luminaire. This means that after the LED module is inserted into the luminaire, the twistable terminals are twisted automatically or by human action, resulting in the installation of the LED module.

In order to prevent the incorrect insertion of the LED module in a simple way, or to allow the bidirectional arrangement of the LED module within the luminaire, a rectifier mechanism with an assigned safety circuit is particularly suitable for the LED module. It is assigned to at least one terminal. Thanks to the rectifier mechanism, it is possible to ensure bidirectional insertion due to rectification, making it impossible to insert the LED module incorrectly.

In this connection, the protection circuit can prevent, for example, excessively high voltage and the like.

The rectifier mechanism and the protection circuit can preferably be encapsulated.

In order to be able to simply assign corresponding terminals or male contacts to the LED module as well, pin housings may be provided at the ends of the LED module to provide the terminals and in particular male contacts.

In one embodiment, the LED module with terminals is designed to be inserted in all four sockets to replace two fluorescent bulbs arranged in parallel and socketed on two sides in this manner. The arrangement of two parallel fluorescent bulbs is common in many luminaires, and as a result this kind of LED module is useful in many ways. Moreover, this type of LED module is simple to insert, since four terminals must be inserted simultaneously into the corresponding sockets, which simplifies assembly.

The LED module is preferably characterized in that it can be inserted into the luminaire with the correct orientation. This is possible, for example, by the correct orientation indicated by arrows or markings. However, on the other hand, for example, projection elements are provided in the form of projections to prevent the LED module from being inserted incorrectly.

The LED module may include an electronic pre-circuit to supply electricity to the LEDs. Conventional lighting means are commonly driven by an ordinary alternating voltage, either directly provided by a power supply grid, for example an incandescent bulb, or provided by a ballast, for example a fluorescent bulb. However, supplying electricity to the LEDs requires a relatively direct voltage. An electronic pre-circuit that regulates the electrical supply provided to drive the LEDs can be provided to the LED module as a result. The LED module can in turn be inserted directly into the luminaire which in turn supplies the voltage which is not suitable for the LED elements. In particular, the electronic pre-circuit converts the supply voltage of the electronic ballast for the fluorescent bulb into a suitable direct current supply for the LED module.

The electronic pre-circuit can preferably be designed to provide the supply voltage with the correct polarity of the LEDs regardless of the orientation in which the LED module is inserted into the luminaire. This is particularly necessary in applications where the supply voltage has already been converted to a direct voltage and the electronic pre-circuit in the LED module additionally only needs to adjust or safeguard current flow in the correct direction of the LEDs. In particular, this can be obtained by providing a diode.

According to the invention and the foregoing description the invention further relates to a luminaire having an LED module, whereby the luminaire and / or the LED module is explosion proof. In particular, the explosion-proof LED module can be obtained by means of proper encapsulation of the light emitting diodes and any electronic pre-circuit that can be provided, so that ignition spark does not occur and can also wrap the LED module. It is possible not to reach an ignition temperature sufficient to ignite the explosive gas. The luminaire may alternatively or additionally also be explosion-proof on its own. In particular, this is possible if the luminaire has a cover and a base body, which are used to enclose the LED module and in this way the explosion gas does not penetrate into the LED module and furthermore the electrical terminals of the electrical supply and the luminaire are likewise explosion-proof. Can be.

In particular, the luminaire and / or the LED module may be formed of an anti-ignition type such as Ex-e, Ex-d or Ex-m.

In one embodiment, the lamp comprises a base body for a typical lighting means, including a socket into which the LED module is inserted, and a cover which is positioned over the base body and covers the LED module, transparent or translucent. Include. The cover preferably allows light to be distributed in interaction with the reflector of the base body or LED module. The cover further provides a way to replace the LED module using another LED module or typical lighting means such as, for example, fluorescent lamps.

The plurality of LEDs are preferably arranged in rows in the longitudinal direction of the LED module. Thus, at least two rows of LEDs may be provided in the longitudinal direction of the LED module, thus in particular a row of two or more LEDs such that the width of the LED module increases, such as rows of three or more, five or ten or more LEDs. Can be provided.

The plurality of LEDs may be arranged in a longitudinal direction on a printed circuit board in the LED module. This makes providing a plurality of LEDs simpler and simpler to activate.

Preferably, the LEDs in the LED module emit light to at least a certain range in the direction of the reflector which reflects and scatters the light of the LEDs, so that the illumination field of the lamp is formed uniformly. The reflector may be part of a luminaire or part of an LED module.

The inventive task definition has, on the one hand, sockets for conventional lighting means, for example fluorescent lamps or incandescent bulbs, and on the other hand at least one for an LED module inserted to replace the conventional lighting means. It can also be solved by providing a luminaire having a socket of.

In particular, sockets for conventional lighting means may have ballasts which do not have ballasts or are different from the pre-circuit provided for driving the LED modules.

In another embodiment, the LED module can have an electronic pre-circuit so that the sockets of the conventional lighting means and the socket of the LED module can be driven with the same electrical supply.

In particular, after the replacement of the conventional lighting means, the sockets for the plurality of conventional lighting means and the at least one LED module in such a way that the LED module is arranged in at least a part of each replaced conventional lighting means area. The socket is arranged.

In order to securely support the LED module in the luminaire, the sockets of the corresponding luminaire may have a locking mechanism for locking the terminals or male contacts inserted into the socket.

As will be described below, preferred embodiments of the present invention are described in more detail using the figures shown in the accompanying drawings.

The light output can be improved using the present invention.

1 is a schematic isometric view of a lighting device with two fluorescent lamps and a cover removed according to the state of the art.
2 is a schematic three-dimensional view of a lighting device having an LED module with the cover removed in accordance with the present invention.
3 is a schematic stereoscopic view of an LED module according to the invention provided in a luminaire and a luminaire and compared to a conventional fluorescent lamp.
4 is a schematic diagram of an LED module with a rectifier mechanism.

1 is a conventional, explosion-proof lighting device 1 and has a base body 2, the base body 2 being provided with a transparent or translucent cover during operation, the cover not shown. It is. The base body 2 has electrical supply terminals 3, 4 to which corresponding supply lines can be connected. The base body 2 is supplied with a preliminary electronic controller, which provides at least a supply voltage suitable for the operation of the fluorescent lamp 5, which is not separately indicated.

The two fluorescent lamps 5 are arranged in parallel in the longitudinal direction L of the base body 2. In order to install and localize the fluorescent lamp 5, downwardly protruding mounting flanges 6, 7 are provided in the region of the two longitudinal ends of the base body 2. Each of the mounting flanges 6, 7 is provided with two sockets, each of which is arranged centrally in the longitudinal direction of the lighting device 1. The term socket is thus not only related to the projecting element for supporting the ends of the fluorescent lamp 5, but rather the terminals 8 (see FIG. 3) of the fluorescent lamp 5 are inserted. It is likewise relevant to recessed areas which may be.

The lighting device 1 has a length in the longitudinal direction L which is greater than the height in the height direction H and the width in the latative direction B. FIG.

2 shows an explosion-proof luminaire 1 having a base body 2, which is provided with an LED module 9 instead of a fluorescent lamp 5, which is uncovered and structurally identical. The LED module 9 has a length approximately corresponding to the length of the fluorescent lamp, in particular the terminals 10, 13 and 11, 12 having the same space as the terminals of the fluorescent lamp 8. The LED module 9 preferably has a height slightly higher than the diameter of the fluorescent lamp 5, and at least the terminals 10, 11 of the mounting flanges 6, 7 of the base body 2 at one end of the LED module. Have a width such that it is inserted into the sockets for the terminals of the fluorescent lamp.

The plurality of LEDs 14 is arranged in the longitudinal direction on the printed circuit board 15 in the LED module 9. In an embodiment of the invention, only the LEDs on the printed circuit board are shown in FIG. 2, whereby additional LEDs are arranged in the transverse direction B symmetrically with them on the opposite side. Furthermore, additional LED rows may be arranged between the columns of the two LEDs described above.

The LEDs 14 are preferably supplied with a direct current voltage produced by an electronic pre-circuit provided to the LED module 9. In this way, the LED module 9 can be inserted into the base body of the conventional lighting device 1, which provides a supply voltage for the fluorescent lamp using an electronic ballast.

The reflector 16, which aims the light downward in the direction of the opening of the base body 2, and also scatters the light generated in a punctiform manner by the LEDs 14. Alternatively, the LEDs 14 are mainly surrounded by the plurality of reflectors 16 above and to the side. In this way, light distribution similar to that made by the conventional fluorescent lamp 5 can be achieved by the LED module 9.

3 again shows a lighting device 1 with a base body 2, in which a cover 17 is arranged on the base body 2. When this cover 17 is removed from the base body 2, the LED module 9 or fluorescent lamp 5 shown can be inserted into the base body 2, after which the cover 17 is closed again. The kind of lighting means of the luminaire 1 can thus be changed at any time, and there is no need to change the base body 2 of the lighting device. This is particularly advantageous for the use of explosion-proof luminaires 1, since replacing the ballasts in the base body 2 can be expensive and complex in the case of luminaires 1 which can be used in industry. This may be due to the need for recertification or a new safety acceptance test. The LED module 9 may furthermore be fashioned to be suitable for replacing the fluorescent lamp 5 in the luminaire 1 existing in the prior art. The luminaire 1 already installed in the industrial area can thus be upgraded to have LEDs instead of fluorescent lamps as the lighting means.

Additionally, when redesigning the base body 2, mounting mechanisms may be provided that install the LED module 9 to the terminals 10, 11, 12, 13 at the base body 2. . Furthermore, a preliminary control device can be provided to redesign the base body 2 suitable for the configuration of both the fluorescent lamp and the LEDs, so that any additional preliminary electronic controller can be provided in the LED module 9. Not provided.

Terminals 10, 11 are provided at the end side 18 in the longitudinal direction of the LED module 9 and terminals 12, 13 are provided at the opposite end side 19 in the longitudinal direction. Each of the terminals 10, 11, 12, 13 has two male contacts 20, 20 as shown in the terminal 10, which are the male contacts 21, 21 of the fluorescent lamp 5. It has a structure and a space substantially coincident with. The male contacts 20, 20 of the LED module are used to a certain extent for the power supply of the LEDs, and other male contacts can also be provided only for mounting the LED module 9.

Referring also to FIG. 2, FIG. 4 shows a schematic view of an LED module 9 in which two essential printed circuit boards with LEDs 14 are arranged in parallel next to each other. A positive pole is at one end of each printed circuit board and a negative pole is at the other end. Pin housings 22, 23 that already support the corresponding terminals 10, 11, 12, 13 or related male contacts are arranged at the distal sides of the LED module. Rectifier mechanisms 24, 25 are disposed between the terminals on at least one end of the LED module 9 and the respective printed circuit boards. These preferably contain a protective circuit.

With reference to FIG. 2, due to the rectifier mechanism, it is possible or possible to insert the LED module into the corresponding sockets of the luminaire without damaging the LEDs due to incorrect polarities. That is, thanks to the rectifier mechanisms 24 and 25, each of the corresponding anodes of each printed circuit board with the LEDs receives a positive voltage and the corresponding cathode receives a negative voltage.

The present invention consequently provides an LED module that can completely replace a conventional fluorescent bulb solution without having to change the wiring or mechanical system of the corresponding luminaire. See for example sockets and holders. The electrical or electronic pre-circuit of the luminaire is thus used to activate the corresponding LEDs. By means of an additional mechanism of the LED module, it is also possible for the module to be twisted 180 ° and inserted into the luminaire and to operate in that state. That is, there is an electrical and mechanical direction-independent drive.

In general, the LED module replaces two fluorescent bulbs.

For example, a plurality of printed circuit boards with LEDs are arranged in sequence, such as a corresponding additional parallel arrangement, for example two printed circuit boards with LEDs in each case are sequentially followed in one LED module. Can be arranged in parallel. This also applies similarly for two or more printed circuit boards.

Claims (20)

As an LED module 9 for insertion into a luminaire 1, the LED module 9 comprises a plurality of LEDs 14 and for replacing at least one conventional lighting means 5. Have terminals 10, 11, 12, 13 which can be inserted into the socket of 1),
The LED module 9 has at least two terminals 10, 11, 12, 13, in each case one of the two terminals 10, 11, 12, 13 for the lighting means 5. Is inserted into the socket of a luminaire (1),
The other of the two terminals 10, 11, 12, 13 allows the LED module 9 to be separated into two separate (so as to be inserted simultaneously into the other sockets of the lighting device 1 for additional lighting means 5. separate lighting means (5), and
The luminaire 1 and the LED module 9 are formed in an explosion-protected manner,
The LED module 9 comprises an electronic pre-circuit for supplying electricity to the LEDs 14,
Terminals 10, 11 are provided at the end side 18 in the longitudinal direction of the LED module 9 and terminals 12, 13 are provided at the opposite end side 19 in the longitudinal direction, respectively. 10, 11, 12, 13 have two male contacts 20, 20 having a structure and space matching the male contacts of the fluorescent lamp, and the male contacts 20, 20 of the LED module 9 ) Is used only for the power supply of the LEDs, and other male contacts are provided only for mounting the LED module (9). The method of claim 1,
The terminals,
LED module 9, inserted into sockets for fluorescent bulbs. The method according to claim 1 or 2,
At least two terminals 10, 11 are provided on one side of the LED module 9, and in each case at least two corresponding terminals 12, 13 are provided on the opposite side of the LED module 9, LED module (9). The method according to claim 1 or 2,
The LED module 9 has a length greater than the height and width, and the terminals 10, 11, 12, 13 are provided at the distal sides 18, 19 in the longitudinal direction. ). The method according to claim 1 or 2,
The terminals 10, 11, 12, 13 are
LED module, used for installing the LED module 9 to the luminaire 1. The method according to claim 1 or 2,
LED module 9, in which only some of the terminals 10, 11, 12, 13 are made current-carrying. The method according to claim 1 or 2,
Each of the terminals 10, 11, 12, 13,
LED module 9, in which two male contacts are formed which can be inserted into corresponding sockets of the luminaire 1. The method according to claim 1 or 2,
The terminals 10, 11, 12, 13 are
Arranged on two opposing end sides 18, 19 in the longitudinal direction of the LED module 9, each of the same height, and at the same distance from the center in the lateral direction of the LED module 9. , LED module (9). The method according to claim 1 or 2,
The terminals 10, 11, 12, 13 are
LED module 9, which has been twisted against LED module 9 so that the terminals 10, 11, 12, 13 can be installed in the sockets of the luminaire. The method according to claim 1 or 2,
LED module 9 having the terminals,
LED module 9, designed to be inserted into all four sockets in order to replace two fluorescent bulbs 9 arranged in parallel and socketed to two sides in this way. The method according to claim 1 or 2,
LED module 9,
LED module (9), characterized in that it is inserted into the luminaire in the correct orientation. delete The method of claim 1,
Electronic pre-circuit,
LED module 9, designed to provide a supply voltage with the correct polarity for the LEDs 14, regardless of the orientation in which the LED module 9 is inserted into the luminaire. The method according to claim 1 or 2,
LED module 9, wherein a rectifier mechanism 24, 25 with a protection circuit is assigned to at least one terminal 10, 11, 12, 13. The method according to claim 1 or 2,
Pin housings 22, 23 having the terminals 10, 11, 12, 13 and male contacts 20 are arranged at the ends of the LED modules 9. , LED module (9). delete A luminaire with an LED module (9) made according to claim 15,
Each socket is
Luminaire 1 with a locking mechanism for locking male contacts to lock terminals 10, 11, 12, 13 inserted in the socket. A luminaire with an LED module (9) made according to claim 15,
LED module 9 for replacing the lighting means,
A luminaire (1) configured to be able to be rotated relative to the sockets between a release and a locking position. A luminaire with an LED module (9) made according to claim 15,
LED module 9,
Luminaire 1 with a locking mechanism assigned to each of the terminals 10, 11, 12, 13. A luminaire with an LED module (9) made according to claim 15,
An insertion channel used for sliding in the terminals of the LED modules, and a luminaire 1 in which a latching or locking mechanism is assigned to each socket or each holder.

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