Luminaire body and luminaire

Abstract

The luminaire body (10) comprises a first side wall (12) and a second side wall (14), and an intermediate wall (16) connecting the first side wall and the second side wall, which comprises an imaginary central longitudinal axis (KL) of the body and a longitudinal first mounting arrangement for attaching first LED light sources (18). The intermediate wall further comprises at least one longitudinal second mounting arrangement for attaching second LED light sources (20) and at least one longitudinal third mounting arrangement for attaching third LED light sources. The first, second and third LED light sources comprise a circuit board and differ from each other in the dimensions of the circuit board and in the number and arrangement of the mounting holes in the circuit boards. The first, second and third mounting arrangements extend in the width direction of the body at different distances from the central axis of the body. The luminaire comprises a body and at least one first LED light source attached to the first mounting arrangement, at least one second LED light source attached to the second mounting arrangement, or at least one third LED light source attached to the third mounting arrangement.

Description

Field of the invention

[0001] The subject of the invention is a luminaire body comprising a first side wall and a second side wall, and an intermediate wall connecting the first side wall and the second side wall, wherein the intermediate wall comprises a longitudinal first mounting arrangement for attaching first LED light sources. The invention also relates to a luminaire comprising a body according to the invention.Prior art

[0002] Energy-efficient LED luminaires, which are used extensively for lighting buildings, typically comprise an elongated body made of a metal profile, which includes a base and side walls extending obliquely outwards from the edges of the base. The light sources used in such luminaires typically comprise a circuit board to which a plurality of LED elements are attached. The circuit boards of the light sources are attached to the base at mounting points designed for them, and the side walls delimit the light beam emitted by the LED elements to a desired area outside the luminaire. Below the light sources, there may be lenses or prisms attached to the base of the body for directing the light beams. The free edges of the side walls are often connected by a light-transmitting protective plate, typically a plastic plate. One known LED luminaire is disclosed in US 2015 / 0116990 A1.

[0003] A problem with known LED luminaires made of metal profiles is that their bodies have only one set of mounting elements, to which only certain types of LED light sources can be attached. However, there are several different types of LED light sources consisting of circuit boards and LED elements, which differ particularly in the location of the mounting elements. If it is desired to install a different type of LED light source in the luminaire, for example due to changed lighting needs of a building or room, it is often necessary to replace the entire luminaire, because the body does not allow the desired LED light source to be attached at all or at least not at the desired location on the base of the body.

[0004] Document IT PN20120061 A1 discloses a luminaire body, inside which there is an intermediate wall comprising three longitudinal grooves for attaching LED light sources. In this publication, all light sources attached to the grooves are structurally similar, i.e., the circuit board of the light sources and the location of the mounting holes in the circuit board are the same in all LED light sources.

[0005] The aim of the invention is to provide a luminaire body and a luminaire, with which it is possible to reduce the drawbacks associated with the prior art. The objectives of the invention are achieved by a luminaire body and a luminaire characterized by what is set forth in the independent claims. Some preferred embodiments of the invention are set forth in the dependent claims.Brief summary of the invention

[0006] The invention is related to a luminaire body, which has a length and a width, the width being less than the length, a first side wall and a second side wall, and an intermediate wall connecting the first side wall and the second side wall, wherein the intermediate wall comprises an imaginary central longitudinal axis of the body, a longitudinal first mounting arrangement for attaching first LED light sources, at least one longitudinal second mounting arrangement for attaching second LED light sources, which second LED light sources are different from the first LED light sources, wherein said at least one second mounting arrangement extends in the width direction of the body at a different distance from said central axis than the first mounting arrangement, and at least one longitudinal third mounting arrangement for attaching third LED light sources, which third LED light sources are different from the first and second LED light sources, wherein said at least one third mounting arrangement extends in the width direction of the body at a different distance from said central axis than the first mounting arrangement and the second mounting arrangement. The first LED light sources, the second LED light sources and the third LED light sources comprise a circuit board and differ from each other in the dimensions of the circuit board and in the number and arrangement of the mounting holes in the circuit boards, and the first mounting arrangement comprises at least one first recess, the second mounting arrangement comprises at least one second recess, and the third mounting arrangement comprises at least one third recess for receiving the mounting elements of the first, second and third LED light sources, wherein the first, second and third recesses have an opening, which opens sbstantially at the same level as the surface of the intermediate wall for attaching the first LED light sources, the second LED light sources or the third LED light sources, or an optical element at least partially covering the first or second LED light source, such as a lens or prism, to the intermediate wall.

[0007] In some embodiments of the luminaire body according to the invention, the first mounting arrangement comprises at least one longitudinal first mounting groove for receiving mounting screws of the first LED light sources, and the second mounting arrangement comprises at least one longitudinal second mounting groove for receiving mounting screws of the second LED light sources.

[0008] In some embodiments of the luminaire body according to the invention, the third mounting arrangement comprises at least one longitudinal third mounting groove for receiving mounting screws of the third LED light sources, or mounting elements of said optical element, such as mounting lugs.

[0009] In some embodiments of the luminaire body according to the invention, said first, second and / or third mounting arrangements are located symmetrically on different sides of said central axis.

[0010] In some embodiments of the luminaire body according to the invention, the first and second side walls comprise a first edge, which comprises a mounting slot for attaching a light-transmitting protective plate or cover.

[0011] In some embodiments of the luminaire body according to the invention, the body comprises a base wall connecting the first and second side walls such that the side walls, the intermediate wall and the base wall delimit a longitudinal cavity in the body for accommodating power supply means. Typically, the power supply means of the LED luminaire comprise at least connection wires, a control device and a connector strip.

[0012] In some embodiments of the luminaire body according to the invention, the body has a cross-section which is substantially constant along the entire length of the body. Preferably, the body is made of a composite profile, plastic profile, or metal profile, such as an aluminum profile.

[0013] The luminaire according to the invention comprises a body as described above and at least one first LED light source attached to the first mounting arrangement, at least one second LED light source attached to the second mounting arrangement, which second LED light source is different from the first LED light source, or at least one third LED light source attached to the third mounting arrangement, which third LED light source is different from the first and second LED light sources. Thus, different types of LED light sources, which comprise a circuit board and differ from each other in the dimensions of the circuit board and in the number and arrangement of the mounting holes in the circuit boards, can be attached to the same luminaire body. This enables the use of the same bodies in LED luminaires with different lighting capabilities. Typically, the LED light sources attached to the same luminaire body are similar to each other, but different types of LED light sources can also be attached simultaneously to the same body.

[0014] In some embodiments of the luminaire according to the invention, the first LED light source, the second LED light source, or the third light source is a Zhaga Book 7 compliant light source or a Zhaga Book 15 compliant light source. The LED light source may also be a LEDiL Lianna 2R or a LEDiL Daisy 28x1-7x1 optics compatible LED light source.

[0015] In some embodiments of the luminaire according to the invention, there is at least one optical element, such as a lens or prism, at least partially covering the first and / or second LED light source, which is attached to the third mounting arrangement.

[0016] In some embodiments of the luminaire according to the invention, there is a light-transmitting protective plate or cover extending from the first side wall to the second side wall.

[0017] An advantage of the invention is that it enables the attachment of LED light sources of different structures and dimensions to the same luminaire body without separate intermediate pieces or additional devices. The invention thus enables the upgrading of existing LED luminaires with LED light sources of different lighting capabilities.

[0018] A further advantage of the invention is that it enables the use of the same luminaire bodies in the manufacture of LED luminaires with different lighting capabilities, which increases the size of body production series and thus reduces the unit costs of luminaires.

[0019] Yet another advantage of the invention is that it enables the simultaneous installation of different LED light sources in the same luminaire body, which increases the possibilities for modifying the luminaires.Brief description of the drawings

[0020] The invention will be described in detail below. The description refers to the accompanying drawings, in which Figure 1a shows, by way of example, a LED luminaire according to the invention, viewed obliquely from below, Figure 1b shows, by way of example, the LED luminaire shown in Figure 1a in cross-section, and Figures 2a-2f show, by way of example, various embodiments of a luminaire according to the invention in cross-section. Detailed description of the invention

[0021] Figure 1a shows, by way of example, a LED luminaire according to the invention, viewed obliquely from below. The LED luminaire according to the invention comprises an elongated body 10, which comprises a first side wall 12 and a second side wall 14. Each end of the body is covered by an end plate 11, the outer edge of which is substantially the same as the cross-sectional shape of the body. The distance between the end plates determines the length of the body, which can be selected. The length of the body can be 400-2500 mm, preferably 574 mm, 1151 mm, 1440 mm or 2305 mm (+ / - 5 mm). The end plates are attached to the body with screws 13. The LED luminaire according to the invention is primarily designed to be attached or suspended to the ceiling structures of a building, in which case, in the operating position of the LED luminaire shown in Figure 1, the free edges of the side walls point obliquely downwards. The side walls delimit and direct the light produced by the LED light source to a desired area below the luminaire and prevent uncontrolled spreading of light to the sides of the luminaire. The opening defined by the free edges of the first and second side walls and the end plates is covered by a light-transmitting protective plate 36. The purpose of the protective plate is to protect the LED light source from external stresses, such as moisture, dust and impacts, and to form an illuminated surface delimiting the room space. The width of the light opening, i.e., the distance between the free edges of the side walls, can be selected. The width of the light opening can be 60-120 mm, preferably 92 mm.

[0022] Figure 1b shows, by way of example, the LED luminaire shown in Figure 1a in cross-section. The side walls 12, 14 of the body 10 are curved in cross-section and are connected to each other via the intermediate wall 16 and the base wall 38 such that the intermediate wall, base and side walls delimit a longitudinal cavity 40 in the body, in which power supply means, such as connection wires, control devices and connector strips, not shown in the figures, required for supplying power to the LED light sources, are placed. The free edges of the first and second side walls comprise mounting slots 34 facing each other, into which the edges of the light-transmitting protective plate 36 are placed. The body is made of a metal profile such that the first and second side walls, the intermediate wall and the base wall form an integral piece. The cross-sectional shape of the body is bubstantially constant along the entire length of the body. The cross-section of the body is preferably symmetrical such that the portions of the cross-section on different sides of the imaginary central longitudinal axis KL of the body are mirror images of each other. Preferably, the body is made of an extruded aluminum profile.

[0023] The LED light sources belonging to the LED luminaire are attached to the intermediate wall 16 of the body. Depending on the length of the body, a desired number of LED light sources can be arranged in a longitudinal row in the body. The intermediate wall comprises a first mounting groove 26, located on the central longitudinal axis KL, the opening of which opens to the surface of the intermediate wall facing the protective plate. The first mounting arrangement forms a first mounting arrangement for attaching first LED light sources 18. The LED light sources to be installed in the LED luminaire comprise a circuit board 19, to the surface of which light-emitting LED elements 21 are attached. The LED light sources are attached to the intermediate wall such that the LED elements remain on the surface of the circuit board facing the protective plate. The circuit board comprises a mounting hole or mounting holes, by means of which the LED light source is attached to the intermediate wall with mounting screws 32. The first LED light source shown in Figure 1b is a so-called Lianna LED card, in which the mounting holes are in a single row between two parallel rows of LED elements. Such LED light sources are attached to the first mounting groove with mounting screws 32.

[0024] On both sides of the first mounting groove, there is a second mounting groove 28, the opening of which opens to the surface of the intermediate wall facing the protective plate, at the same level as the opening of the first mounting groove. The second mounting grooves are at the same distance from the central axis KL on different sides of the central axis and form a second mounting arrangement for attaching second LED light sources, not shown in the figure. Like the first LED light sources, the second LED light sources comprise a circuit board to which LED elements are attached, but the first and second LED light sources differ from each other in the dimensions of the circuit board and especially in the number and arrangement of the mounting holes in the circuit board and / or in the power, number and arrangement of the LED elements attached to the circuit boards.

[0025] The intermediate wall further comprises two third mounting grooves 30, the openings of which open to the surface of the intermediate wall facing the protective plate at the same distance from the central axis KL on different sides of the central axis and farther from the central axis than the second mounting grooves 28. The third mounting grooves form a third mounting arrangement for attaching third LED light sources and / or an optical element, such as a lens or prism, at least partially covering the first or second LED light source (the optical element is not shown in the figure). The third LED light sources also differ from the first and second LED light sources in the dimensions of the circuit board and especially in the number and / or arrangement of the mounting holes in the circuit board, as well as in the power, number or arrangement of the LED elements attached to the circuit boards. The surface of the intermediate wall facing the protective plate is substantially flat, so that the openings of the first, second and third mounting grooves open substantially at the same level.

[0026] On the surface of the intermediate wall 16 facing the base wall 38 and on the outer surface of the base wall, there are two locking grooves 39 each, for receiving screws 13 used for attaching the end pieces 11. On the outer surface of the base wall, there are also longitudinal ribs protruding from the level of the base wall for stiffening the body.

[0027] Figures 2a-2f show, by way of example, various embodiments of a LED luminaire according to the invention in cross-section.

[0028] In the embodiment shown in Figure 2a, the first LED light source 18 is at least one Lianna LED card, which is attached with mounting screws 32 to the first mounting groove 26 of the intermediate wall 16. Below the LED light source, there is an optical Lianna lens 22, which comprises two mounting lugs 25, the tips of which have barbs. The tips of the mounting lugs are pushed into the third mounting grooves 30 such that the barbs are positioned behind the edge strip of the third mounting groove. The tension force acting on the mounting lugs in the installed lens forces the tips of the mounting lugs to press tightly against the edge strip of the mounting groove, whereby the lens locks in place on the intermediate wall. Depending on the length of the body, a desired number of first LED light sources and lenses at least partially covering them can be arranged in a longitudinal row in the body. The light-transmitting protective plate 36 attached to the first and second side walls 12, 14 is provided with microprisms 37.

[0029] In the embodiment shown in Figure 2b, at least one second LED light source 20 is attached to the second mounting grooves 28 of the intermediate wall 16 with mounting screws 32. The second LED light source can be a Zhaga Book 7 type L14W2, L28w2, L56W2, L112W2, L115W2, L140W2 or L145W2 LED light source. Depending on the length of the body, a desired number of second LED light sources can be arranged in a longitudinal row in the body.

[0030] In the embodiment shown in Figure 2c, a second LED light source 20, which is a Zhaga Book 7 W6 card, is attached to the intermediate wall 16. In addition, a so-called Florens lens 22 is attached to the intermediate wall. The protective plate 36 is provided with microprisms. Depending on the length of the body, a desired number of second LED light sources and lenses can be arranged in a longitudinal row in the body.

[0031] In the embodiment shown in Figure 2d, a third LED light source 42, which can be a Zhaga Book 7 L28W4 or L56W4 card, is attached to the intermediate wall 16. In addition, a Zhaga optics covering the Zhaga cards can be attached to the intermediate wall. Depending on the length of the body, a desired number of third LED light sources can be arranged in a longitudinal row in the body.

[0032] In the embodiment shown in Figure 2e, a second LED light source 20, which can be a Zhaga Book 7 L6W6 or L28w6 card, is attached to the intermediate wall 16. In this embodiment, the circuit board 19 of the second LED light source is so wide that its edges extend beyond the area defined by the third mounting grooves 30. In the invention, the surface of the intermediate wall 16 to which the LED light sources are attached is substantially flat except for the openings of the mounting grooves opening into it, so the large width of the circuit board does not hinder the attachment of the LED light source. Depending on the length of the body, a desired number of second LED light sources can be arranged in a longitudinal row in the body.

[0033] In the embodiment shown in Figure 2f, a first LED light source 18, which can be a Zhaga Book 7 W6 card, is attached to the intermediate wall 16. In this embodiment, a protruding light-transmitting protective cover 33 is suspended from the mounting slots 34 in the first and second side walls 12, 14. Depending on the length of the body, a desired number of LED light sources can be arranged in a longitudinal row in the body.

[0034] In addition to the above-mentioned LED light sources, the various embodiments of the LED luminaire according to the invention can use Zhaga Book 15 compliant 2x2-DA, 2x4 DA, 2x6-DA, 2x8-DA as well as 2x3+2-DA, 2x6+4-DA, 2x9+6-DA and 2x12+8-DA LED light sources.

[0035] Above some preferred embodiments of the luminaire body and luminaire according to the invention are described. The invention is not limited to the solutions described above, but the inventive concept can be applied in various ways within the scope of the claims.Reference numeral list:

[0036] 10body 11end plate 12first side wall 13screw 14second side wall 16intermediate wall 18first LED light source 19circuit board 20second LED light source 21LED element 22lens 25mounting lug 26first mounting groove 28second mounting groove 30third mounting groove 32mounting screw 33protective cover 34mounting slot 36protective plate 37microprism 38base wall 39locking groove 40cavity 42third LED light source KLcentral axis

Claims

1. A luminaire body (10), which body (10) has a length and a width, the width being less than the length, a first side wall (12) and a second side wall (14), and an intermediate wall (16) connecting the first side wall (12) and the second side wall (14), wherein the intermediate wall (16) comprises an imaginary central longitudinal axis (KL) of the body, a longitudinal first mounting arrangement for attaching first LED light sources (18), at least one longitudinal second mounting arrangement for attaching second LED light sources (20), which second LED light sources (20) are different from the first LED light sources (18), wherein said at least one second mounting arrangement extends in the width direction of the body (10) at a different distance from said central axis than the first mounting arrangement, and at least one longitudinal third mounting arrangement for attaching third LED light sources (42), which third LED light sources (42) are different from the first and second LED light sources (18, 20), wherein said at least one third mounting arrangement extends in the width direction of the body at a different distance from said central axis than the first mounting arrangement and the second mounting arrangement, characterized in that the first LED light sources (18), the second LED light sources (20) or the third LED light sources (42) comprise a circuit board and differ from each other in the dimensions of the circuit board and in the number and arrangement of the mounting holes in the circuit boards, and the first mounting arrangement comprises at least one first recess, the second mounting arrangement comprises at least one second recess, and the third mounting arrangement comprises at least one third recess for receiving the mounting elements of the first, second and third LED light sources (18, 20, 42), wherein the first, second and third recesses have an opening which opens substantially at the same level as the surface of the intermediate wall (16) for attaching the first LED light sources (18), the second LED light sources (20) or the third LED light sources (42), or an optical element at least partially covering the first or second LED light source (18, 20), such as a lens (22) or a prism, to the intermediate wall.

2. The luminaire body (10) according to claim 1, characterized in that the first mounting arrangement comprises at least one longitudinal first mounting groove (26) for receiving mounting screws (32) of the first LED light sources (18), and the second mounting arrangement comprises at least one longitudinal second mounting groove (28) for receiving mounting screws (32) of the second LED light sources (20).

3. The luminaire body (10) according to claim 1 or 2, characterized in that the third mounting arrangement comprises at least one longitudinal third mounting groove (30) for receiving mounting screws (32) of the third LED light sources (42) or mounting elements, such as mounting lugs (25), of said optical element.

4. The luminaire body (10) according to any one of claims 1-3, characterized in that said first, second and / or third mounting arrangements are located symmetrically on different sides of said central axis.

5. The luminaire body (10) according to any one of claims 1-4, characterized in that the first and second side walls (12, 14) comprise a first edge, which comprises a mounting slot (34) for attaching a light-transmitting protective plate (36) or protective cover (33).

6. The luminaire body (10) according to any one of claims 1-5, characterized in that the body (10) comprises a base wall (38) connecting the first and second side walls (12, 14) such that the side walls (12, 14), the intermediate wall (16) and the base wall (38) delimit a longitudinal cavity (40) in the body (10) for accommodating power supply means.

7. The luminaire body (10) according to any one of claims 1-6, characterized in that the body (10) has a cross-section which is substantially constant along the entire length of the body (10).

8. The luminaire body (10) according to any one of claims 1-7, characterized in that the body (10) is formed of a composite profile, plastic profile or metal profile, preferably an aluminum profile.

9. A luminaire, characterized in that it comprises a body (10) according to any one of claims 1-8 and at least one first LED light source (18) attached to the first mounting arrangement, at least one second LED light source (20) attached to the second mounting arrangement, which second LED light source (20) is different from the first LED light source (18), or at least one third LED light source (42) attached to the third mounting arrangement, which third LED light source is different from the first and second LED light sources (18, 20).

10. The luminaire according to claim 9, characterized in that the first LED light source (18), the second LED light source (20) or the third light source (42) is a Zhaga Book 7 compliant light source, a Zhaga Book 15 compliant light source, or a LEDiL Lianna 2R or a LEDiL Daisy 28x1-7x1 optics compatible LED light source.

11. The luminaire according to claim 9 or 10, characterized in that it comprises at least one optical element, such as a lens (22) or prism, at least partially covering the first or second LED light source (18, 20), which is attached to the third mounting arrangement.

12. The luminaire according to any one of claims 9-11, characterized in that it comprises a light-transmitting protective plate (36) or protective cover (33) extending from the first side wall (12) to the second side wall (14).

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