WO2006136377A1

WO2006136377A1 - Assembly for an explosion-proof luminaire

Info

Publication number: WO2006136377A1
Application number: PCT/EP2006/005915
Authority: WO
Inventors: Friedheim Harnischmacher; Gerhard Schwarz
Original assignee: Cooper Crouse-Hinds Gmbh
Priority date: 2005-06-20
Filing date: 2006-06-20
Publication date: 2006-12-28
Also published as: CN101203711B; EP1902251B1; NO20076422L; DE202005009624U1; KR20080017054A; EP1902251A1; CN101203711A; BRPI0612510A2; ATE529696T1; KR101154798B1; ES2372092T3

Abstract

An assembly (1) for at least one in particular explosion-proof luminaire (2) has at least one lamp (3), a voltage supply device (4) and a connecting device (5), which can be electrically connected to one another and, via the connecting device (5), to an external voltage supply (6). In order to improve such an assembly to the extent that maintenance work or repair work can be carried out on a corresponding luminaire in the region at risk of explosion in a simple and safe manner even without any specialist knowledge, the lamp (3), the voltage supply device (4) and the connecting device (5) are designed as individual modules (7, 8, 9) which can be connected to one another by means of explosion-proof connecting elements (10, 11, 13).

Description

ASSEMBLY FOR EXPLOSION-PROTECTED LUMINAIRE

The invention relates to an assembly for at least one, in particular explosion-protected, luminaire comprising at least one lamp, a voltage supply device and a connecting device, which can be electrically connected to one another and to an external voltage supply via the connecting device.

Such an assembly is known from practice, which has a lamp, voltage supply device and connecting device in a housing, the connecting device comprising through-wiring routed outwards from the housing. The corresponding parts are electrically connected to one another in various ways within the housing, these electrical connections not being explosion-protected, since in the assembly known from practice, explosion protection is formed as a housing part via a specific sealing system and a locking mechanism between a basic housing and a protective trough.

If a component such as a lamp, voltage supply device or connection device is to be repaired or replaced for such an assembly for maintenance or repair, special prior knowledge is required so that only trained specialist personnel with special approval for electrical systems in potentially explosive areas may carry out maintenance or repairs.

Since only a small number of such specialist personnel may be available, the maintenance or repair can possibly only be delayed or carried out at longer intervals. In addition, despite the trained specialist personnel, there is an increased risk of such maintenance or repair.

The invention is therefore based on the object of improving an assembly of the type mentioned in such a way that even without special knowledge, maintenance or repair of a corresponding luminaire in the hazardous area can be carried out in a simple and safe manner.

This object is solved by the features of claim 1. According to the invention, the various parts of the assembly are designed as individual modules, such as a lamp module, voltage supply module and connection module, these individual modules being connectable to one another by means of explosion-proof connecting elements. This also applies to the corresponding connection between the connection module and the external power supply.

By using such individual modules, there are no special requirements for a housing comprising a basic housing and a protective trough with regard to explosion protection, so that, for example, the protective trough can be removed without the lamp being switched off and a single module can then be removed for maintenance or repair. This can also be done without switching off the voltage. Since the requirements for assembly or disassembly, for maintenance or repair of such a lamp are considerably simplified and can be carried out more reliably than the previously known lamp, specially trained specialist personnel are not required. Instead, the modules can be serviced or replaced on site without special measures.

In this context, in particular in the case of fluorescent lamps, it can be regarded as advantageous if the voltage supply module has an electronic ballast.

Depending on requirements, there is also the possibility that the individual modules are connected to each other before lamp installation, for which purpose the corresponding explosion-proof connecting elements are used. In this way, the assembly that has already been assembled into a luminaire can be handled as a whole and attached to the corresponding point during assembly and connected to the external power supply.

In other assemblies, it may be advantageous if the individual modules are connected to one another during lamp assembly.

The connecting elements can be designed in different ways, as long as they are explosion-proof. Connectors are an example of such connecting elements of the individual modules. Such connectors can be connected directly to the Corresponding individual modules can be arranged so that essentially the individual modules are plugged together and are therefore relatively stable, for example after their connection, for further handling.

In principle, there is the possibility of also providing certain connecting elements between certain individual modules. This can, for example, prevent individual modules from being connected to one another that are not suitable for certain areas in explosion protection, are only suitable for certain voltages, or the like. For this purpose, the corresponding connecting elements can be coded, for example, so that only those with suitable coding can be connected to one another.

If such requirements are not necessary, there is the possibility that all connecting elements of the individual modules are constructed in the same way. As a result, for example, a lamp module of one lamp can also be inserted into another lamp in a simple manner. This applies analogously to the other individual modules.

In order to simplify the assembly of the luminaire, at least one individual module can have fastening means for luminaire assembly on the mast, ceiling, wall or the like. Depending on the size of the lamp, there is also the option of providing the appropriate fastening means on one or more individual modules.

As a rule, the lamp module not only comprises the actual illuminant, but can also have a reflector device, for example. The illuminant with the associated reflector device is connected directly to the other individual modules, which simplifies assembly.

In one embodiment, the individual modules can each be connectable to another individual module, so that, for example, a lamp module is assembled with a voltage supply module and a connection module in order to form the corresponding luminaire.

It is also conceivable that two or more lamp modules with one voltage supply module and, for example, also two or more voltage supply modules modules can be connected to a connection module. This gives you a greater variation in the luminaire structure.

Certain luminaires may need to have a rechargeable battery pack, for example, in order to maintain a certain amount of emergency lighting by the luminaire in the event of a power failure. According to the invention, it can be regarded as favorable if the assembly also has an emergency supply module that can be connected to at least one of the other individual modules. This emergency supply module contains the rechargeable batteries.

There is the possibility that the individual modules can be connected directly to one another, for example by designing the parts of a corresponding plug connector so that they are integrated in the corresponding housings of the modules. In this way, the modules are essentially connected directly to one another. There is also the possibility that the plug part and / or socket part of such a connector are connected to the associated individual module via a flexible cable. As a result, the individual modules can be arranged at a greater distance from one another and there is more flexibility with regard to the relative arrangement of such individual modules.

In order to connect an individual module in principle between two other individual modules, at least one plug part and one socket part of different plug connectors can be assigned to such an individual module.

In order to obtain more options with the lamp module, it can be composed of different sub-modules. Examples of such sub-modules are a reflector module, a protective trough module and the like. These corresponding sub-modules can be assembled together with one or more lamps to form the corresponding lamp module. In order to dispense with special requirements for connecting the sub-modules in this context, they can be connected to one another by means of appropriate explosion-protected plug connectors. This applies in particular to the connector for connecting a lamp with a reflector and / or protective trough module. In order to be able to lead a corresponding cable out of a single module or sub-module for a connector, a part of the connector can be attached to the single or sub-module by means of an explosion-proof screw connection.

In the following, advantageous exemplary embodiments of the invention are explained in more detail with reference to the figures enclosed in the drawing.

Show it:

Figure 1 is a schematic representation in side view of an assembly according to the invention from lamp module, power supply module and connection module;

2a) to 2d) are perspective top views of various exemplary embodiments, in particular for lamp modules and the voltage supply and connection module connected therewith;

Figure 3 is a top perspective view of another embodiment of a

Assembly, and

Figure 4a) to 4c) three variants of a lamp module with sub-modules.

FIG. 1 shows a basic illustration of an assembly 1 for a light 2 from a number of individual modules. These individual modules are a lamp module 7 with the actual lamp 3, a voltage supply module 8 as a voltage supply device 4 and a connection module 9 as a connection device 5 to an external voltage supply 6, for example. The individual modules can all be handled separately and exchanged for maintenance or repair. To connect the individual modules, corresponding connecting devices, such as plug connectors 13, are arranged between them. Since the corresponding luminaire 2 is used in potentially explosive areas, these plug connectors 13 are used as explosion protection devices with appropriate ignition protection, such as flameproof encapsulation, increased safety or the like.

The individual modules are also designed so that they can be used in potentially explosive areas.

Through the use of such individual modules and the corresponding connection devices between them, there is the possibility that, in principle, “laypersons” can remove or replace such an individual module without a voltage cut-off. There is no need for this to be carried out by specially qualified specialist personnel. This means that a corresponding module can be exchanged during operation and without special previous knowledge.

The lamp module 7 shown in FIG. 1 already contains a reflector device 21, and fastening means 15 for mounting the lamp and thus the entire assembly 1 on, for example, a mast, a ceiling, a wall or the like are provided on this individual module and also on the voltage supply module 8.

The fastening means 15 can be provided on each individual module or only on one individual module, the arrangement of the fastening means depending on the weight of the entire assembly 1 and on the location and type of fastening.

Furthermore, there is the possibility that an emergency supply module 16 with in particular rechargeable batteries or accumulators is used as a further individual module or possibly also as part of another individual module. If the external power supply fails, this is used for emergency lighting using light 2.

Different exemplary embodiments, in particular for lamp modules 7, are shown in FIGS. 2a) to 2d).

In FIG. 2a) the lamp module 7 is designed with a fluorescent lamp as the illuminant. This is for connection to a further individual module, such as voltage supply module 8 or connection module 9 with a plug part 10 as a connection element. ment trained. This plug part 10 is connected to the lamp module 7 via a flexible cable 17.

Analog lamps are shown in Figures 2b) to 2d). In particular in FIGS. 2c) and 2d), a plurality of lamp modules 7 are connected to a corresponding voltage supply module 8 via an assigned plug part 10. The voltage supply module 8 has a corresponding socket part 11 as a connecting element of a plug connector 13.

In Figure 2d) four lamp modules 7 are connected to a voltage supply module 8.

A reflector device 21 is also arranged in FIG. 2c), to which the lamp modules 7 and also the voltage supply module 8 can optionally be attached.

Via the connection module 9, a corresponding plug connector 13 is used to connect to a lamp module 7 or a voltage supply module 8 and then from the connection module 9 to the external voltage source 6, see also FIG. 1.

To lead the corresponding cable 17 out of one of the individual modules 7, 8 or 9, an explosion-proof screw connection 20 is provided, see also the other figures.

Corresponding further cables 17 for connecting, for example, voltage supply module 8 according to FIG. 2c) or 2d) to connection module 9 are not shown for the sake of simplification. This applies analogously to the connection module 9 and its connection to the external voltage source 6.

In Figure 3, another embodiment is shown similar to Figure 2b). In particular, corresponding cables 17 of the connection module 9 are shown here, which can be used both for connection to further connection modules 9 or also directly to an external voltage supply 6. FIGS. 4a) to 4c) show various exemplary embodiments for a lamp module 7 which can be assembled from sub-modules. A sub-module is, for example, a reflector module 18, to which a corresponding illuminant is detachably connected. The corresponding plug connection between illuminant and reflector module 18 can also be designed to be explosion-proof.

The reflector module 18 can also contain parts of the lamp electronics, a cable 17 being led to the outside via a corresponding explosion-protected screw connection 20 for connection to the voltage supply module 8 or connection module 9.

In FIG. 4 b), the reflector module 18 is curved and corresponding plug contacts are led outward from the lamp module 7 via an explosion-proof screw connection 20. These are used to attach the lamp module to the reflector module 18.

In Figure 4, two lamp modules 7 are arranged parallel to each other and attached to the reflector module 18 in a corresponding manner. In addition, a protective trough module 19 can also be provided, which protects the corresponding lamp modules 7 or lamps. Corresponding routing of a cable to the outside again takes place via an explosion-proof screw connection 20, such cables not being shown in FIG. 4 for simplification.

Claims

Expectations

1. An assembly (1) for at least one, in particular explosion-proof, luminaire (2) comprising at least one lamp (3), a voltage supply device (4) and a connecting device (5), which are connected to one another and via the connecting device (5) to an external voltage supply (6 ) are electrically connectable, characterized in that the lamp (3), voltage supply device (4) and connecting device (5) are designed as individual modules (7, 8, 9) which can be connected to one another by means of explosion-proof connecting elements (10, 11, 13).

2. Module according to claim 1, characterized in that the voltage supply module (4, 8) has an electronic ballast (12) in particular.

3. Module according to claim 1 or 2, characterized in that the individual modules (7, 8, 9) are connected to each other before luminaire assembly.

4. Module according to one of the preceding claims, characterized in that the individual modules (7, 8, 9) can be connected to one another during the lamp assembly.

5. Module according to one of the preceding claims, characterized in that the connecting element (10, 11) of the individual modules (7, 8, 9) is designed as a plug connector (13).

6. Module according to one of the preceding claims, characterized in that the connecting elements (10, 11) of the individual modules (7, 8, 9) are constructed identically.

7. Module according to one of the preceding claims, characterized in that the lamp module (7) has a reflector device (14).

8. Assembly according to one of the preceding claims, characterized in that at least one individual module (7, 8, 9) has fastening means (15) for mounting lights on mast, ceiling, wall or the like.

9. Module according to one of the preceding claims, characterized in that two or more lamp modules (7) with a voltage supply module (8) can be connected.

10. Module according to one of the preceding claims, characterized in that two or more voltage supply modules (8) can be connected to a connection module (9).

11. Assembly according to one of the preceding claims, characterized in that the assembly (1) further comprises an emergency supply module (16) which can be connected to at least one of the other individual modules (7, 8, 9).

12. Module according to one of the preceding claims, characterized in that the explosion-protected connector (13) has a plug part (10) and a socket part (11), the plug part (10) and / or socket part (11) with the associated individual module (7 , 8, 9) are connected via a flexible cable (17).

13. Module according to one of the preceding claims, characterized in that a single module (7, 8, 9, 16) has at least one plug part (10) and a socket part (11) which are assigned to different plug connectors (13).

14. Module according to one of the preceding claims, characterized in that the lamp module (7) has a reflector module (18) and / or a protective trough module (19), each lamp (2) by means of in particular explosion-protected plug connectors with one of these modules (18, 19) is connectable.

15. Module according to one of the preceding claims, characterized in that a part (10, 11) of the connector (13) is fastened to the individual module (7, 8, 9, 16) by means of an explosion-proof screw connection (20).