moisture-proof luminaire

Abstract

Damp-proof luminaire (1), • exhibiting - a lighting section with at least one light source (6) and a surrounding elongated luminaire housing (20, 50) with end faces, characterized in that the luminaire housing is connected at its end faces to at least one end face, wherein the end face is designed to keep the luminaire housing in shape and to fix it.

Description

[0001] The invention relates to a moisture-proof luminaire, in particular with LEDs as the light source.

[0002] Such luminaires are known in themselves. They essentially consist of a control gear and light sources that are controlled and thus operated by this control gear. These luminaires are usually installed as a single unit.

[0003] The housings of such luminaires are essentially two-part and generally consist of two housing halves. The control gear and the light source are housed together in these housing halves. That is, the housing halves form a single internal space for all the components of the luminaire.

[0004] The tools used to manufacture the housing halves of moisture-proof luminaires are generally large, expensive, and not easily modifiable, meaning they are not flexible in length. Furthermore, they exhibit significant warping after demolding.

[0005] The object of the invention is therefore to counteract the disadvantages and in particular to provide a lamp in which assembly is made easier and access to its internal components is simplified.

[0006] The invention is primarily intended to allow the sealing element to be moved "further into the luminaire," meaning the sealing groove is located inside the cross-sectional profile via a recess. The visible exterior surfaces (side surfaces) should allow for a simple design and not be characterized by a visible sealing element.

[0007] Furthermore, the production of large moisture-proof luminaires should be made possible without investment in large injection molding tools.

[0008] The aim is to provide a platform that enables the production of moisture-proof luminaires in different lengths.

[0009] This problem is solved by the subject matter of the independent claims. Advantageous further developments are specified in the dependent claims.

[0010] According to the invention, a moisture-proof luminaire is provided, • exhibiting - a luminous section with at least one light source (6) and an elongated luminaire housing (20, 50) enclosing this housing with end faces, wherein the luminaire housing is connected at its end faces to at least one end face, the end face being designed to keep the luminaire housing in shape and to fix it.

[0011] A sealing groove can be arranged within the cross-section of the luminaire housing.

[0012] The luminaire housing may have fastening elements designed to enable the fastening of luminaire components, in particular a control gear for the light source, a carrier board for the light source and / or optics for the light source.

[0013] The fastening elements can be designed as an integrated part of the luminaire housing and preferably as a back-mounted element.

[0014] Optionally, a luminaire is provided that has a lighting section. The lighting section is equipped with at least one light source and a luminaire housing that encloses it. That is, the luminaire housing contains the light source(s). Additionally, the luminaire housing can be equipped with a control gear and a control gear housing that encloses the control gear. The luminaire housing is arranged so that it can enclose the lighting section and the control gear in a way that is at least moisture-tight with respect to the luminaire. Preferably, the light source and the control gear of the luminaire are arranged separately from each other and can therefore be accessed from different locations. In particular, the dimensions of the luminaire housing can be optimized for the light source(s).

[0015] The prior art and the invention will be explained in more detail below with reference to the accompanying drawings. These show: Fig. 1 and Fig. 2 views of a so-called moisture-proof luminaire according to the state of the art; Fig. 3. A front view of the moisture-proof luminaire according to the state of the art; Fig. 4 a sectional view of the moisture-proof luminaire according to the state of the art; Fig. 5, Fig. 6 and Fig. 7 views of a moisture-proof luminaire according to the invention;

[0016] In the Fig. 1 and Fig. Figure 2 shows two perspective views of a moisture-proof luminaire, generally designated with reference numeral 1, according to the state of the art. This luminaire is specifically designed for use in areas where, among other things, elevated humidity may be present. Luminaire 1 is therefore designed in such a way as to prevent the ingress of dust and / or moisture into its interior. The sealing measures described in more detail below are intended to ensure that luminaire 1 meets the requirements of protection class IP65, ideally class IP66.

[0017] The essential components of the luminaire 1 are the two elongated luminaire housings, which consist of a so-called luminaire diffuser 50 and a cover 20. Additionally, a further component, described in more detail below, can be included. Fig. 1 and Fig. Two concealed mounting brackets are provided, which are arranged in the space enclosed by the luminaire housing 50 and the cover 20 and carry the components responsible for light generation. The luminaire housing is thus formed by the components to be joined together: the luminaire housing 50 and the cover 20. These enclose an elongated receiving space for the other components of the luminaire 1.

[0018] It is planned that the cover 20 and the luminaire housing 50 will be made of the same material. This represents a significant difference compared to previously known solutions, as the differing requirements previously necessitated making the luminaire housing from one material and the cover responsible for light emission from a different material. Materials used for the luminaire housing were typically chosen to seal the interior of the luminaire against external influences. The cover, in turn, was made of a material that met the optical requirements regarding light emission.

[0019] In the present case, the luminaire housing 50 and the cover 20 are made entirely of the same material, whereby, for example, according to a first preferred embodiment, polycarbonate (PC) may be used for both components. This plastic material can be either opaque or opal, with an opaque material preferably being selected for the housing 50, while the cover 20 is opal. That is to say, the cover 20 in this case has at least slightly light-diffusing properties, which leads to a homogeneous, uniform light emission.

[0020] According to another variant, both the luminaire housing 50 and the cover 20 can be made of polymethyl methacrylate (PMMA). This is a material that can be made crystal clear. This choice of material means that light can escape not only through the cover 20, but also through the luminaire housing 50, which is also translucent. This can be used to illuminate the housing of the luminaire 1 overall, or to achieve indirect light emission via the luminaire housing 50.

[0021] In both versions, as already mentioned, the luminaire housing 50 and the cover 20 are made of the same materials. This offers the advantage that both housing components 20 and 50 expand and contract in the same way in response to temperature fluctuations. This prevents temperature fluctuations from negatively affecting the sealing measures described in more detail below. This further improves the sealing of the luminaire 1 against external influences.

[0022] It can be provided that, apart from the sealing material described below, the sealing of the luminaire's interior against external influences is achieved solely by the two housing components (basin 50 and cover 20), and that both housing components 20 and 50 are designed in such a way that they can be joined together without additional aids. Ideally, the cover 20 and the luminaire base 50 consist entirely of a single material (such as polycarbonate or polymethyl methacrylate) without the use of additional, more flexible materials in the connection area, as is the case with many known solutions. This simplifies the manufacturing of both housing parts 20 and 50, as they can be easily produced using injection molding, as described below.On the other hand, the omission of additional connection and sealing measures requires a special interaction of both housing components 20, 50 in the connection area in order to achieve the desired connection and seal.

[0023] The inside of the dome-shaped cover 20 can be provided with light-refracting structures over essentially its entire surface, in the illustrated embodiment with longitudinally extending ribs 24. The cover 20 can have a curved base 21.

[0024] The Fig. 3 and Fig. Figure 4 shows a cross-section of a moisture-proof luminaire 1 according to the prior art, as it may also be present in the moisture-proof luminaire according to the invention.

[0025] The moisture-proof luminaire has light sources 6, for example one or more LED boards, and opposite this positioning are further components responsible for supplying power to the LED boards. These may include a control gear 140 and connection terminals 142, 143, which are then connected via cables (not shown) to the power supply lines leading into the interior of the luminaire or from the control gear 140 to the LED boards.

[0026] The Fig. 5, Fig. 6 and Fig. Figure 7 shows embodiments of the invention. Further parts of the damp-proof luminaire, not shown, can be constructed as in the example based on the Fig. The state of the art described in points 1 to 4 must be present.

[0027] The Fig. 5, Fig. 6 and Fig.Figure 7 shows a luminaire cover 20 as part of the luminaire housing in a perspective view. The luminaire cover 20 has an elongated shape and smooth outer surfaces. This significantly facilitates cleaning of the surfaces of the luminaire 1 that are primarily responsible for light emission. It also reduces the risk of dirt particles accumulating on the surface of the luminaire 1.

[0028] The elongated luminaire housing 20 has end faces 30. At these end faces, the luminaire housing 20 is connected to at least one end face 80, preferably via a retaining tab 70 which can engage in a sealing groove 90. The end face 80 is designed to hold and fix the luminaire housing 20 in shape.

[0029] A sealing groove 90 is arranged within the cross-section of the luminaire housing.

[0030] The luminaire housing 20 may have fastening elements designed to enable the fastening of luminaire components, in particular a control gear 140 for the light source, a carrier board for the light source and / or optics for the light source.

[0031] The fastening elements can be designed as an integrated component of the luminaire housings 20, 50 and preferably be designed as a back-loading element.

[0032] The extruded part of the tub is held in shape and fixed by the injection-molded end pieces. These end pieces stiffen the component. The length of the light fixture is flexible; different light fixture sizes can be manufactured on the same machine because the back supports can be easily produced as profiles (i.e., the profiles do not need to be designed for demolding).

Claims

[1] Damp-proof luminaire (1), • exhibiting - a lighting section with at least one light source (6) and an elongated luminaire housing (20, 50) enclosing this housing with end faces, characterized by that the luminaire housing is connected at its end faces to at least one end piece, the end piece being designed to hold and fix the luminaire housing in shape. [2] Moisture-proof luminaire (1) according to claim 1, characterized by that a sealing groove is arranged within the luminaire cross-section of the luminaire housing. [3] Moisture-proof luminaire (1) according to claim 1 or 2, characterized by that the luminaire housing has fastening elements designed to enable the fastening of luminaire components, in particular a control gear for the light source, a carrier board for the light source and / or optics for the light source. [4] Moisture-proof luminaire (1) according to claim 1, 2 or 3, characterized by that the fastening elements are designed as an integrated part of the luminaire housings and are preferably designed as a back-loading element.

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