DE102020101220A1 - lamp - Google Patents

Abstract

A lamp is proposed. The luminaire has: a luminaire body 1 with a rear wall (101) and at least one side wall (102), the side wall (102) having a guide groove (103), at least one LED rail (15A) with a plurality of LEDs for generating of light, wherein the LED rail (15A) has electrical contacts which can be detachably connected to a power supply, and wherein the one LED rail (15A) is inserted interchangeably in the guide groove (103), the luminaire body 1 being set up, absorb the operating heat of the LED rail (15A) and emit it to the environment, a diffuser (28) which is arranged on the LED rail (15A) and absorbs the light from the LED rail (15A) and emits it along a radiating surface.

Description

Field of invention

The invention relates to a lamp. Particularly in industrial areas, for example in film and theater technology, high demands are placed on lighting. It is particularly difficult to design a luminaire in such a way that uniform and, at the same time, efficient illumination is provided with as little space as possible.

Disclosure of the invention

The present invention is concerned, among other things, with increasing the service life of a luminaire with LEDs. In particular, the invention is concerned with extending the life of the LEDs and repairing the luminaire if the LEDs fail.

The object is achieved by a luminaire according to claim 1. The luminaire has: a luminaire body with a rear wall and at least one side wall, the side wall having a guide groove, at least one LED rail with a plurality of LEDs for generating light, the LED rail has electrical contacts that can be detachably connected to a power supply, and wherein the one LED rail is inserted replaceably in the guide groove, the luminaire body being set up to absorb the operating heat of the LED rail and emit it to the environment, a diffuser , which is arranged on the LED rail and absorbs the light from the LED rail and emits it along a radiating surface.

Further advantageous variations of the invention emerge from the dependent claims.

Figure list

• 1 eine Explosionsdarstellung einer Leuchte nach einer Ausführungsform,
• 2 einen Ausschnitt eines des Leuchtenkörpers nach 1,
• 3 einen Ausschnitt eines Leuchtenkörpers aus einer anderen Perspektive nach der Ausführungsform der 2, und
• 4 eine Darstellung eines Kugelgelenkes einer Leuchte nach einer Ausführungsform verbunden mit einer Haltevorrichtung.

Further advantages and features of preferred embodiments of the invention are explained below with reference to the accompanying drawings. The figures show in:

• 1 an exploded view of a lamp according to one embodiment,
• 2 a section of one of the lamp body according to 1 ,
• 3 a section of a lamp body from a different perspective according to the embodiment of FIG 2 , and
• 4th a representation of a ball joint of a lamp according to one embodiment connected to a holding device.

A lamp is proposed. The lamp has: a lamp body 1 with a back wall 101 and at least one side wall 102 , with the side wall 102 a guide groove 103 has at least one LED rail 15A with a multitude of LEDs to generate light, with the LED rail 15A Has electrical contacts which are releasably connectable to a power supply, and wherein the one LED rail 15A into the guide groove 103 is inserted interchangeably, the lamp body 1 is set up, the operating heat of the LED rail 15A take up and release to the environment, a scattering body 28 that is on the LED rail 15A is arranged and the light of the LED rail 15A absorbs and emits along a radiating surface.

In the case of luminaires with LEDs, normal operational loads cause the LEDs to fail after an average service life. Operation at high power and the resulting high temperatures at the LEDs have a negative effect on the service life. Particularly in the industrial use of luminaires with high requirements in terms of illumination and limited space, for example in the case of lighting in film studios, theaters or exhibition stands, a high light output with a pleasant and natural color temperature of the light emitted is necessary. The high load reduces the service life of the LEDs. LEDs are to be understood as meaning semiconductor-based LEDs and / or organic LEDs.

the 1 until 3 show the same embodiment of a lamp.

According to the invention, the luminaire has an LED rail 15A , 15B with a variety of LEDs to generate light. The lamp body 1 has a back wall 101 and at least one side wall 102 with a guide groove 103 on. The LED rail 15A is in the guide groove 103 of the luminaire body 1 interchangeably inserted. In the event of a failure of one or more LEDs on an LED rail 15A , 15B , the LED rail can 15A , 15B replaced and the luminaire can continue to be used. This enables the lamp to be repaired easily. In the case of luminaires from the prior art, the LEDs are often welded on, soldered or cast in synthetic resin. Although this ensures good heat conduction, it prevents the LEDs from being replaced. The LED rail is advantageous 15th of the present invention interchangeable and in particular detachable with the lamp body 1 connected. In other words, the LED rail 15th is not attached to the lamp body 1 welded, soldered, glued or the like. Furthermore, there is access to the guide groove 103 not welded, soldered or glued but is closed, for example, by a releasable fastening means.

3 shows an LED rail 15th partially in the guide groove 103 is inserted. The guide groove 103 holds the LED rail 15th on the side wall 103 so that a thermally conductive contact is created. According to one embodiment, the LED strip is 15th by shifting it parallel to the side wall into the guide groove 103 insertable.

To support the conduction of heat, a thermal paste can be placed between the side wall 102 and LED rail 15th be arranged. The guide groove 103 with the thermal paste provides a good thermal connection between the side wall 102 and LED rail 15th here that is solvable.

The LED rail 15th may have a circuit board on which the plurality of LEDs are arranged. The LED rail 15th is rigid so that it is from one edge of the side wall 102 by parallel displacement in the guide groove 103 is insertable. In other words, a parallel displacement is a displacement in a direction defined by the length of the rail. 3 shows an almost completely inserted LED rail 15th . The length of the LED rail 15th can for example be at least 80cm.

The width of the LED rail 15th can for example be in the range of 8 mm to 12 mm. The guide groove 103 accordingly has the same or a slightly larger extent. The thickness of the LED rail 15th ranges from 1 to 3 mm.

The guide groove 103 according to one embodiment, has a thickness of less than or equal to 3 mm. The LED rail 15th is only slightly less thick, so the LED rail 15th along the side wall 102 and forms a thermally conductive contact.

3 also shows that the led rail 15th may have releasable electrical contacts. In the 3 connecting terminals are shown that support the LED rail 15th releasably electrically contacted with cables. A detachable electrical contact enables the LED rail to be exchanged 15th without soldering.

the 1 until 3 also show the diffuser 28 that is on the LED rail 15A is arranged and the light of the LED rail 15A absorbs and emits along a radiating surface. The radiating surface 28 can be perpendicular to the LED rail 15A be arranged.

According to one embodiment, the lamp body has 1 at least two opposing side walls 102A , 102B each with a guide groove 103A , 103B and the luminaire also has a second LED rail 15B with a variety of LEDs to generate light. The second LED rail 15B is in the guide groove 103B the second side wall 102B interchangeable inserted and the luminaire body 1 is set up, the operating heat of the second LED rail 15B take up and release to the environment, the scattering body 28 with a first side on the first LED rail 15A is arranged and on a second side on the second LED rail 15B is arranged and the light of the two LED rails 15A , 15B absorbs and emits along a radiating surface. This embodiment is in 1 shown. The side walls 15A , 15B can essentially be mirror images of each other.

The luminaire can be an LED driver module 13th have that as a power source for the LED rail 15th is formed, the LED driver module 13th in one housing ( 10 ) on one outside of the rear wall 101 of the luminaire body 1 is arranged. The LED rail 15th can by cables that at one point the back wall 101 pierce and with the LED driver module 13th are electrically connected, are supplied with electricity.

1 shows the LED driver module 13th and the case 10 . According to different embodiments, the housing can have several combinable features. The case 10 is, for example, metallic and has a protective earth contact 21 . The case 10 can also use a 5V power supply unit 18 for a rear USB connection 20th exhibit. The LED driver module 13th can through a display 11 on the housing 10 operated from outside and / or the status of the LED driver module 13th can be read without the housing 10 to open. A power cord connector 5 can also be used to control the LED driver module 13th on the outside of the case 10 be arranged. The housing can have a heat sink for heat dissipation 6th exhibit. On the outside of the case 10 can electrical jacks 8th , 9 be arranged, the the LED driver module 13th can provide electricity. The case 10 can with a seal 14th opposite the luminaire body 1 be sealed. The case 10 can by releasable fastening means, in particular screws 12th with the lamp body 1 be connected.

The lamp body 1 is set up, the operating heat of the LED rail 15A to be picked up and given to the environment. The lamp body 1 is therefore thermally conductive with the LED rail 15A , 15B connected and dimensioned in such a way that it absorbs the operating heat of the LED rail 15A , 15B on the side wall 102 can pick up and deliver elsewhere. The side wall can do this 102 have a correspondingly sufficient thickness. According to one embodiment, the thickness is the side wall 102 near the guide groove 103 greater than the thickness in much of the back wall 101 , as in 2 shown.

The lamp body 1 can, according to one embodiment, cooling fins 104 for the passive release of heat to the environment. As in the embodiment of the 1 until 3 can use the cooling fins on the rear wall 101 on the side wall 102 be arranged. Alternatively or additionally, the cooling fins can also be placed directly on the side wall 102 be arranged.

The lamp body 1 may be molded in one piece, as in the embodiment of FIG 1 until 3 shown. The cooling fins can also do this 104 part of the one-piece lamp body 1 be. For example, the lamp body 1 be produced by a pressing process, in particular an extrusion process.

The lamp body 1 can consist of a metal. In particular, the metal can be aluminum or an aluminum alloy. A metallic luminaire body is robust and at the same time thermally conductive.

According to one embodiment, the lamp body has a length of at least 80 cm in one direction. The direction can be determined by the length of the side wall 102 be defined. For example, the lamp body 1 rectangular and has the dimensions 0.8 cm to 1.0 mx 0.3 to 0.4 cm.

According to one embodiment, the total mass of the lamp is between 8 kg and 12 kg and / or at least 10 kg.

The lamp body 1 can with a handle 4th for aligning the lamp and / or an eyelet 6th be connected for hanging the lamp, as in 1 shown. The handle 4th can with a detachable fastening means, in particular one or more screws 29 , be attached.

According to one embodiment, the lamp has a power of at least 75 W, in particular at least 100 W. In some embodiments, the lamp can have a power of 125 W.

According to one embodiment, the luminaire has at least one side part 2 on, with the side part 2 perpendicular to the side wall 102A , 102B of the luminaire body 1 is arranged, and wherein the side part 2 detachable with the luminaire body 1 connected is. The lamp can also have two side parts 2 have on opposite sides of the lamp.

The side part 2 is detachable with the side wall 102 connected. A detachable fastening means, in particular one or more screws, can be used for this purpose 17th , be provided. According to one embodiment, the side part covers 2 the guide groove 103 from. By removing the side panel 2 is the LED rail 15th can be removed from the guide groove. The connection between the side part can be advantageous 2 and lamp body 1 through a seal 3 are sealed.

According to one embodiment, the multiplicity of LEDs generate white light with a color temperature between 2700 Kelvin and 6500 Kelvin. In particular, the color temperature is controllable and can assume intermediate levels, for example, warm white light: 2,700 to 3,300 Kelvin, neutral white light: 3,300 to 5,300 Kelvin and daylight white light: 5,300 to 6500 Kelvin.

According to one embodiment, the multiplicity of LEDs contain at least two separately controllable LED colors. This allows the color temperature to be controllable. This can be done, for example, by an LED driver module ( 13th ) to be controlled.

According to one embodiment, the luminaire can also have a translucent end plate 27 having that with the side wall 102 is connected and separates an interior of the luminaire from an exterior of the luminaire. In the interior is the LED strip 15th arranged. The closing plate can be advantageous 27 opposite the side wall 102 be sealed with a seal and for example with a screw connection 23 / 24 to the lamp body 1 be pressed, as in 1 shown.

According to one embodiment, the interior of the luminaire has at least IP tightness 42 according to IP protection classes (IN EN 60529: 2014-09), in particular from IP 53 and especially from IP 54 , on.

Can be advantageous due to the stable lamp body 1 Extensions of the luminaire directly on the luminaire body 1 be attached. An additional stand, which is otherwise required near the luminaire and holds a cover, for example, is no longer necessary. According to a further development, the luminaire furthermore has one or more screens for delimiting a light cone that is generated around the radiating surface, the luminaire body 1 along the side wall 102 has one or more fastening points and wherein the one or more panels can be detached with a fastening means on the fastening point or points of the lamp body 1 are definable. This embodiment is not shown in the figures.

the 4th shows a detailed section of the 1 . According to one embodiment, the lamp has on an outside of the rear wall 101 of the luminaire body 1 a ball joint 1601 on, being the ball joint 1601 is designed so that it can carry the load of the lamp. To adjust the ball joint, the ball joint 1601 have a pressure lever and one or more disc springs that exert a pressing force on the ball of the ball joint 1601 determine. The ball joint can be fitted with a base plate on the rear wall 101 of the luminaire body 1 be attached.

As in 4th shown, the lamp can be a first part of a quick release device 1602 have that with the ball joint 1601 is connected for connection with a corresponding second part of a quick release device. For example, the first part is a quick release device 1602 a pin and the second part of a quick release device 1602 a sleeve and a clamping lever.

A set is also proposed, the set having a lamp as described above and a holding device. The holding device has a corresponding second part of a quick release device and a clamp 1603 for detachable attachment.

Claims (15)

Luminaire, having: - A lamp body (1) with a rear wall (101) and at least one side wall (102), the side wall (102) having a guide groove (103), - At least one LED rail (15A) with a plurality of LEDs for generating light, the LED rail (15A) having electrical contacts which can be detachably connected to a power supply, and wherein the one LED rail (15A) in the guide groove (103) is inserted interchangeably, the luminaire body (1) being set up to absorb the operating heat of the LED rail (15A) and to dissipate it to the environment, - A diffuser (28) which is arranged on the LED rail (15A) and which absorbs the light from the LED rail (15A) and emits it along a radiating surface. Luminaire according to one of the preceding claims, wherein the luminaire has an output of at least 75 W, in particular at least 100 W. Luminaire according to one of the preceding claims, wherein the luminaire body (1) has at least two opposing side walls (102A, 102B) each with a guide groove (103A, 103B) and the luminaire furthermore has a second LED rail (15B) with a plurality of LEDs for generating light, the second LED rail (15B) being interchangeably inserted into the guide groove (103B) of the second side wall (102B) and the luminaire body (1) being set up to absorb the operating heat of the second LED rail (15B) and to the environment, and wherein the diffuser (28) is arranged with a first side on the first LED rail (15A) and on a second side on the second LED rail (15B) and the light of the two LEDs - Receives rails (15A, 15B) and emits them along a radiating surface. Luminaire according to one of the preceding claims, wherein the luminaire has an LED driver module (13) which is designed as a power source for the LED rail and wherein the LED driver module (13) in a housing (10) on a Outside of the rear wall of the lamp body (1) is arranged. Luminaire according to one of the preceding claims, wherein the luminaire further comprises a light-permeable end plate (27) which is connected to the side wall (102) and separates an interior of the luminaire from an exterior of the luminaire. Luminaire according to one of the preceding claims, wherein the luminaire body (1) has cooling ribs (104) for the passive release of heat to the environment. Luminaire according to one of the preceding claims, wherein the luminaire body (1) is molded in one piece, in particular produced by an extrusion process. Light according to one of the preceding claims, wherein the light body (1) consists of a metal, in particular aluminum or an aluminum alloy. Luminaire according to one of the preceding claims, wherein the luminaire body (1) has a ball joint (1601) on an outside of the rear wall (1) and wherein the ball joint (1601) is designed in such a way that it bears the load of the luminaire. Shine after Claim 9 , wherein the lamp has a first part of a quick release device (1602) which is connected to the ball joint (1601) for connection to a corresponding second part of a quick release device. Luminaire according to one of the preceding claims, wherein the luminaire has at least one side part (2) and the side part (2) is arranged perpendicular to the side wall (102A, 102B) of the luminaire body (1), the side part (2) being detachable from the luminaire body ( 1) is connected. Luminaire according to one of the preceding claims, wherein the luminaire has an interior and the LED rail (15A, 15B) is arranged in the interior and wherein the interior of the luminaire has at least the tightness of IP 42 according to IP protection classes (IN EN 60529: 2014-09 ), in particular of IP 53 and especially of IP 54. Luminaire according to one of the preceding claims, wherein the luminaire body (1) has a length of at least 80 cm in one direction. Light according to one of the preceding claims, wherein the mass of the light is at least 10 kg. Luminaire according to one of the preceding claims, wherein the luminaire furthermore has one or more screens for delimiting a light cone that is generated around the radiating surface, and wherein the luminaire body (1) has one or more fastening points along the side wall (102) and wherein the one or several panels can be detachably fixed with a fastening means on the fastening point or points of the lamp body 1.

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