EP3489580A1 - Luminaire - Google Patents

Abstract

The invention relates to a lamp (10) with a lamp body (12) and an at least partially translucent lamp housing (14) in which a lamp is arranged, the lamp housing (14) being pivotable with the lamp body, in particular by means of at least one flange (24) (12) is connected. The lamp (10) is characterized in that the connection between the lamp housing (14) and the lamp body (12) is made by means of a pressure cover (18), the pressure cover (18) being a circumferentially sealed first connection (I) to the lamp housing (14) and additionally has a second connection (II), which is circumferentially sealed and separate from the first connection (I), with the luminaire main body (12).

Description

The present invention relates to a luminaire, in particular a moisture-proof luminaire. The luminaire comprises a luminaire main body and an at least partially translucent bulb housing in which a light source is arranged. Here, the lamp housing, in particular by means of at least one flange, pivotally connected to the lamp body.

In the case of damp-proof luminaires, there is the challenge of permanently sealing the moisture-proof luminaire to moisture in the environment or even to spray and pressurized water. For this purpose, seals must be attached to transition points between the different parts of the luminaire.

If, in addition, the illuminant housing of the luminaire or the reflector is to be pivotable, an annular seal is usually provided which allows the pivotability. In the final assembly of the lamp at its place of use, this annular seal is used in conventional lights, for example, in a semicircular recess, then a cap with a semi-circular recess is also attached to the lamp body to attach the lamp housing to the lamp body. The seal is then held between the two semicircular recesses. Usually, an additional seal is provided in the closure cap, which is not circumferential but instead bears against the annular seal at two locations in order to seal the connection between the closure cap and the luminaire main body. At the positions where the two seals abut each other, it can easily come to leaks that can affect the function of the lamp.

It is therefore an object of the invention to provide a luminaire and in particular a moisture-proof luminaire, whose luminous means housing can be pivoted, but nevertheless a high and lasting security against the ingress of moisture is given.

This object is achieved by a luminaire according to claim 1 and in particular by the fact that the connection between the lamp housing and the lamp body is effected by means of a pressure cover, wherein the pressure lid a peripherally sealed first connection with the lamp housing and additionally separate from the first compound circumferentially sealed second Having connection with the lamp body.

Thus, according to the invention, two peripherally sealed connections are used. Such circumferentially sealed connections can be made with high process reliability. As a result, no non-circumferential seal, as in the conventional wet room lights, used. A position where a "seal on seal" comes together can therefore be avoided. The two circumferentially sealed connections according to the invention provide a permanently reliable seal against penetrating moisture. The reliability of the lamp according to the invention can therefore be significantly increased.

In addition, the lamp according to the invention allows a very simple installation. By the pressure lid namely a rotatable and at the same time tight connection with the lamp housing and also a permanently sealed connection with the lamp body can be created. This makes it possible to attach the pressure cover before final assembly to the lamp housing, which then only has to be made in the final assembly, the second connection to the lamp body.

Hereinafter, further aspects of the luminaire according to the invention will be explained.

The flange, which connects the lamp base body and the pressure cover, is preferably circular in cross-section, in order to ensure the pivotability of the lamp housing (relative to the pressure lid). The flange may in particular be a hollow cylinder and also designed as a pin.

The luminaire is preferably, as already mentioned, a moisture-proof luminaire. For example, the luminaire can meet protection class IP65, IP67, IP68 or higher.

The luminaire is preferably a linear luminaire, i. The extension of the luminaire in the longitudinal direction is significantly greater than in another spatial direction.

The luminaire base body as well as the luminaire housing are preferably tubular and elongated in each case. Both can be made of plastics, in particular of a thermoplastic or a thermosetting plastic.

Within the luminaire body, a control gear can be arranged. The operating device is, for example, a switching converter that converts a mains voltage into an operating voltage or an operating current for the lighting device. The light-emitting means may preferably be formed by one or more LEDs (light-emitting diodes). For example, the LEDs can be arranged on a printed circuit board or other suitable carrier.

Preferred embodiments of the invention are described in the description, the drawings and the dependent claims.

According to a first advantageous embodiment of the luminaire according to the invention, the first connection comprises an annular first seal, wherein the first seal is preferably arranged between the flange and the lamp housing or between the flange and the pressure cover. The flange can either be part of the pressure cover or the lamp housing. For example, if the flange is part of the pressure cap (and extends, for example, out of a wall of the pressure cap), the first seal may be between the flange and the bulb housing. Due to the ring-shaped first seal, it is possible to pivot the lamp housing, in particular around the flange.

According to a further advantageous embodiment, the second connection comprises a, preferably substantially rectangular, second seal which is arranged between the pressure cover and the luminaire main body. The second seal may include, in addition to the rectangular and other shapes that do not allow a rotation or pivoting, since such pivotability between the pressure cover and the lamp body is not desired.

According to a further advantageous embodiment, the first and the second seal are each carried out separately and spaced from each other. As already mentioned above, the separate and spaced design of the seals prevents the seals from coming together and thus a possible point of leakage. The second seal is preferably mounted in a position which has a smaller distance from the lamp body than the first seal. On the other hand, the first seal may be disposed at a position closer to the lamp housing than the position of the second seal. In particular, the first seal is at least partially disposed within the lamp housing. The first and the second seal are preferably circumferential, that is self-contained or without interruptions executed.

The first and second seals may be made of, for example, silicone, rubber, EPDM (ethylene-propylene-diene rubber), and / or NBR (acrylonitrile-butadiene rubber).

According to a further advantageous embodiment, the first connection and / or the second connection is a plug connection, which is preferably secured by a securing means. For example, the first connection can be created by inserting the flange into the lamp housing. Alternatively or additionally, then the second connection can be made by inserting the pressure lid on the lamp body. Through the connectors, the first and second connection can be made in a simple and therefore cost-effective manner. To secure the first connection, for example, a locking ring can be used, which is applied to the end of the flange. To secure the second connection, for example, a mounting bracket can be attached to the outside of the pressure cover and to the lamp main body.

According to a further advantageous embodiment, the luminaire base body has at least one end piece, wherein the second connection between the pressure cover and the end piece takes place. The tail is thus part of the lamp body and can for example form an end face of the lamp body. The pressure cover is thus also connected in the region of the front end with the lamp body.

In principle, the luminaire can be constructed at least substantially symmetrically and, e.g. comprise two end pieces at the front ends of the lamp body. In a corresponding manner, two pressure caps can be provided, which are plugged onto the two end pieces and secured by means of clamps on the end pieces. Between the end pieces and a main portion of the lamp body, a circumferentially sealed third connection may be provided with a third seal. The tail may also include a sealed opening for a power cord of the light.

According to a further advantageous embodiment, the lamp housing is open only on one side. For example, the lamp housing may be coupled to two flanges to provide a two-sided storage of the lamp housing and still allow rotation about the flanges. The two flanges can jointly define an axis of rotation for the lamp housing. However, only one of the flanges can be open or continuous. In the region of the other flange, the end of the lamp housing can be completed, for example by sealing or closing the flange itself. Since no moisture can penetrate in the region of the closed end of the lamp housing, the first seal can be saved there. Despite the material savings for the first seal better protection against moisture or pressurized water can be achieved by the closed end, as there are fewer seals in total in the lamp.

In other words, the lamp housing of the lamp can thus be connected by means of two flanges with two pressure caps, but only one flange is sealed by means of a first seal.

According to a further advantageous embodiment, an electrical power supply is guided only by a pressure lid. The electrical power supply is guided in particular by those pressure lid, which is connected by means of the first seal with the lamp housing. For example, the electrical connections or electrical cables for the lamps can then be guided through the open flange. This is possible in particular when using LEDs as a light source, since in this case a one-sided electrical connection of the light source is possible without problems.

According to a further advantageous embodiment, electrical connectors are arranged in the pressure lid and in the lamp main body, which automatically establish an electrical connection when producing the second connection between pressure lid and lamp body. In the pressure cover and the luminaire body so adapted (i.e., complementary) connector can be provided. In particular, the connector of the lamp body is arranged in the end piece. By providing the connector assembly of the lamp according to the invention can be further significantly simplified, since only the pressure cover must be plugged onto the tail to automatically cause an electrical connection of the lamp. For this purpose, the connectors can be installed in the pressure cover and the lamp body at fixed predetermined positions and in particular immobile. The positions are preferably selected so that the connectors automatically connect to each other when inserting the pressure lid in the main body of the lamp.

In accordance with a further advantageous embodiment, when the first connection is made, an opening of the pressure cover points in a direction which runs perpendicular to the extension direction of the illuminant housing. In contrast to earlier fluorescent lamp-based luminaires is ensured by the vertical orientation of the opening easy insertion of the pressure cap in the tail.

In a corresponding manner, a direction which is defined by the opening of the second seal can also run perpendicular to the direction of extension of the luminaire housing. On the other hand, a direction defined by the opening of the first seal may be parallel to the extension direction of the lamp housing.

A specific embodiment of the luminaire may be distinguished, for example, in that the luminaire base body comprises two end pieces which form opposite frontal ends of the luminaire main body, wherein each end piece is connected to a pressure cover, wherein the pressure covers each comprise a flange, wherein furthermore the luminaire housing on both flanges is pivotally mounted and extends between the pressure covers, wherein the lamp housing is designed to be sealed in the region of a first pressure cover and no first seal is present in the region of the first pressure cover, wherein the lamp housing in the region of a second pressure cover has an opening through which an electrical connection the lamp is guided, wherein in the region of the second pressure lid, a first seal is present and wherein only in the second pressure lid and in the lamp base body (in particular in the tail) electrical connector are arranged, which in the manufacture of the second connection between the second pressure lid and the lamp body (or. the tail) automatically establish an electrical connection to provide the light source with electrical energy.

In particular, a connection between the lamp base body and the lamp housing can be produced exclusively by means of one or two pressure lids.

According to a further advantageous embodiment, a locking device is provided, which pivoting of the lamp housing in discrete angular steps causes. The locking device can be arranged, for example, on the flange.

According to a further advantageous embodiment, fastening clips are attached to the luminaire base body, by means of which the luminaire base body can be held on a wall or a ceiling. For this purpose, the luminaire base body may have on its outer side at least one bulge, wherein the lamp can be held on the bulge by means of a Befestigungsklips. As a result, the mounting of the luminaire in its place of use can be greatly simplified, since initially only one or more fastening clips at the desired position of the luminaire, e.g. attached to a ceiling. After mounting the fixing clips, the light can be pressed into the fixing clips so that the fixing clips snap into place on the bulge and thus fix the lamp to the ceiling.

Another object of the invention is a method for mounting a lamp of the type described above. The method is characterized in that the lamp base is attached to a wall or a ceiling. In addition, a first pressure lid is connected by means of plug with the lamp body. In addition, a second pressure lid is connected by means of plug with the lamp body, wherein when plugging in the second pressure lid automatically an electrical connection, in particular by means of electrical connectors, between the lamp body and the lamp housing is made.

The luminaire according to the invention can thus be easily mounted at its destination by means of fewer work steps.

Incidentally, the statements made with respect to the luminaire according to the invention, in particular with regard to advantages and preferred embodiments, apply correspondingly to the method according to the invention.

Fig. 1

eine Leuchte in perspektivischer Ansicht;

Fig. 2

die Leuchte von Fig. 1 in einer Detailansicht;

Fig. 3

eine perspektivische Ansicht der Leuchte von Fig. 1 vor dem Herstellen der zweiten Verbindung;

Fig. 4

Detailansichten eines Druckdeckels; und

Fig. 5

Detailansichten des Druckdeckels mit hergestellter erster Verbindung.

Hereinafter, the invention will be described purely by way of example with reference to the drawings. Show it:

Fig. 1

a lamp in perspective view;

Fig. 2

the light of Fig. 1 in a detailed view;

Fig. 3

a perspective view of the light of Fig. 1 before making the second connection;

Fig. 4

Detailed views of a pressure lid; and

Fig. 5

Detail views of the pressure lid with manufactured first connection.

Fig. 1 shows a lamp 10 in the form of a linear luminaire for wet rooms. The luminaire 10 comprises a luminaire main body 12, which is formed from a non-translucent material. Furthermore, the luminaire 10 comprises a luminous means housing 14, which is formed from a light-transmissive material. In the light source housing 14, a plurality of LEDs are arranged as lighting means on an elongated circuit board (not shown). The LEDs are distributed substantially over the entire length of the lamp housing 14.

Fig. 2 shows a frontal end of the light of Fig. 1 in more detailed view. It can be seen that the lamp housing 14 comprises an attachment 16 at its front end. The attachment 16 of the lamp housing 14 is in Connection with a pressure cover 18. The pressure cover 18 in turn is connected to an end piece 20, which is part of the lamp base 12.

Between the article 16 and the pressure cover 18, a circumferentially sealed first connection I is present. Between the pressure cover 18 and the end piece 20, a circumferentially sealed second connection II is present. Both compounds will be explained in more detail below.

In Fig. 3 the second connection II is shown separately, so that the pressure cap 18 and the end piece 20 do not touch or are not inserted into each other. On the pressure cover 18, a second seal 22 is provided which has approximately a rectangular cross-section. The second seal 22 causes the peripheral sealing of the second connection II.

The FIGS. 4A and 4B show the pressure cap 18 in more detail. The pressure cover 18 includes a flange 24, which produces the first connection I with the attachment 16 of the lamp housing 14. To seal the first connection a first seal 26 is pushed onto the flange 24, which is annular. To secure the attachment 16 on the flange 24, a securing ring 28 can be attached to the flange 24.

On an outer side of the pressure cap 18 securing recesses 30 are provided, in which securing clips 32 (FIG. Fig. 2 ) can intervene to prevent unintentional release of the second compound II.

For better visibility of the first connection is in the Figs. 5A and 5B the interior of the bulb housing 14 is shown, wherein of the bulb housing 14 only the cap 16 can be seen. In the article 16, the flange 24 projects into it and is secured there with the retaining ring 28.

During the final assembly of the luminaire 10, only the luminaire base body 12 has to be mounted at the desired position at the final assembly location. The first connection I between the pressure cover 18 and the lamp housing 14 may have already been made prior to delivery to the final assembly location. At the final assembly then the second compound II must be done by attaching the two pressure cap 18 to the two end pieces 20. In this case, an electrical connection by means of connectors (not shown in the figures) can be produced automatically. The final assembly of the lamp 10 can thus be done with little effort.

LIST OF REFERENCE NUMBERS

10

lamp

12

Lights body

14

Lamp housing

16

essay

18

pressure cap

20

tail

22

second seal

24

flange

26

first seal

28

circlip

30

fuse cutouts

32

securing clip

I

first connection

II

second connection

Claims (14)

Light (10), in particular moisture-proof light, with
a luminaire main body (12),
an at least partially translucent lamp housing (14) in which a light source is arranged, wherein the lamp housing (14), in particular by means of at least one flange (24), is pivotally connected to the lamp main body (12),
characterized in that
the connection between the lamp housing (14) and the lamp main body (12) by means of a pressure cover (18), wherein the pressure lid (18) has a circumferentially sealed first connection (I) with the light source housing (14) and additionally one separate from the first connection circumferentially sealed second compound (II) with the lamp body (12). Luminaire (10) according to claim 1,
characterized in that
the first joint (I) comprises an annular first seal (26), wherein the first seal (26) is preferably disposed between the flange (24) and the bulb housing (14) or between the flange (24) and the pressure cap (18) , Luminaire (10) according to claim 1 or 2,
characterized in that
the second connection (II) comprises a, preferably substantially rectangular, second seal (22) which is arranged between the pressure cover (18) and the luminaire base body (12). Luminaire (10) according to claim 2 and 3,
characterized in that
the first and second seals (22) are each separately and spaced from one another. Luminaire (10) according to at least one of the preceding claims,
characterized in that
the first connection (I) and / or the second connection (II) is a plug connection which is preferably secured by a securing means (28, 32). Luminaire (10) according to at least one of the preceding claims,
characterized in that
the luminaire base body (12) has at least one end piece (20), the second connection (II) taking place between the pressure cap (18) and the end piece (20). Luminaire (10) according to at least one of the preceding claims,
characterized in that
the bulb housing (14) is open on one side only. Luminaire (10) according to at least one of the preceding claims,
characterized in that
only by a pressure lid (18) an electrical power supply is performed. Luminaire (10) according to at least one of the preceding claims,
characterized in that
in the pressure cover (18) and in the lamp base body (12) electrical connectors are arranged, which automatically establish an electrical connection when establishing the second connection between the pressure cover (18) and the lamp base (12). Luminaire (10) according to at least one of the preceding claims,
characterized in that
when manufactured first connection (I) shows an opening of the pressure cover (18) in a direction which is perpendicular to the extension direction of the lamp housing (14). Luminaire (10) according to at least one of the preceding claims,
characterized in that
the luminaire base body (12) comprises two end pieces (20) which form opposite frontal ends of the luminaire main body (12), each end piece (20) being connected to a pressure cover (18), the pressure covers (18) each having a flange (24). further comprising, wherein the bulb housing (14) is pivotally mounted on both flanges (24) and extends between the pressure caps (18), wherein the bulb housing (14) is sealed in the region of a first pressure cover (18) and in the region of the first Pressure lid (18) no first seal (26) is present, wherein the lamp housing (14) in the region of a second pressure cover (18) has an opening through which an electrical connection of the lamp is guided, wherein in the region of the second pressure cover (18) a first seal (26) is present and wherein only in the second pressure cover (18) and in the lamp base body (12) electrical connectors are arranged, which in establishing the second connection between the second pressure lid (18) and the lamp base (12) automatically establish an electrical connection to supply the lamp with electrical energy. Luminaire (10) according to at least one of the preceding claims,
characterized in that
a locking device is provided, which causes pivoting of the lamp housing (14) in discrete angular steps. Luminaire (10) according to at least one of the preceding claims,
characterized in that
on the lamp base (12) mounting clips are attached, by means of which the lamp body (12) can be held on a wall or a ceiling. Method for mounting a luminaire (10) according to at least one of the preceding claims,
characterized in that the luminaire base body (12) is fastened to a wall or a ceiling, - A first pressure lid (18) is connected by means of plug with the lamp body (12) and - A second pressure cover (18) is connected by means of plug with the lamp main body (12), wherein upon insertion of the second pressure cover (18) automatically made an electrical connection, in particular by means of electrical connectors, between the lamp main body (12) and the lamp housing (14) becomes.

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