DE202016101515U1 - lighting system - Google Patents

Abstract

Light system with at least two lamp elements (10, 10 ', 10a) each having a tubular and at least partially transparent housing (11) in which at least one light emitting diode (15) is arranged, characterized in that at least two of the lamp elements (10, 10 ', 10a) via at least one tubular intermediate piece (20, 20', 20a-d) are interconnected.

Description

The invention relates to a lighting system with at least two lamp elements, each having a tubular and at least partially transparent housing in which at least one light-emitting diode is arranged.

Luminaire elements with a tubular housing in which light emitting diodes are arranged, for example, from the document WO 2013/057660 A2 known. These lamp elements form conventional fluorescent tubes and accordingly have arranged on both sides of the housing end caps, each with two contact pins in order to use and operate the lamp element in a socket for a conventional fluorescent tube.

In addition, for example, from the document DE 20 2014 004 851 U1 , Luminaire elements are known, which have a cable feedthrough in an attached to the tubular housing end cap, wherein a supply current is supplied by a cable inserted into the housing. These lighting elements can be installed and used directly on their destination without an additional version via appropriately trained brackets.

It can be provided to use an end cap with cable bushing at each end, so that a plurality of the lamp elements connected via cable sections can be arranged one behind the other and electrically connected to each other. However, the connection of several lamp elements by externally extending cable is associated with a relatively high installation cost.

It is therefore an object of the present invention to provide a lighting system of the type mentioned above with at least two such lighting elements, which can be installed in a simple manner.

This object is achieved by a lighting system with the features of the independent claim. Advantageous embodiments and further developments are specified in the dependent claims.

An inventive lighting system of the type mentioned is characterized in that at least two of the lamp elements are connected to each other via at least one also tubular intermediate piece.

The one or more intermediate pieces allow a mechanical connection of a number of lighting elements to a common lighting system. Due to the tubular configuration of the intermediate pieces, an electrical connection between the luminaire element and the luminaire element can be guided through the intermediate piece, without the electrical connection running externally. This simplifies installation and reduces insulation problems at cable inlets and outlets between the individual luminaire elements.

In an advantageous embodiment of the lighting system, the spacers may be formed straight or angled, so that the lamp elements are in a certain geometry to each other, which is adapted to the intended use. In particular, if intermediate pieces are present at different angles, so a modular system can be built equal even adapted to difficult geometries lighting system. A possible application, for example, an angled nacelle, such as a nacelle of a wind turbine.

In a further advantageous embodiment, in addition to intermediate pieces end pieces are provided which complete a lamp element or which have a cable gland, in order to lead out a power supply cable in a lamp element or lead out of a lamp element.

It can be used in addition to the raw-shaped intermediate pieces that connect two lamp elements together, also distributor pieces that have a connection to more than two lamp elements, for example, four or six lamp elements.

Further, both the intermediate pieces, as well as the end pieces, the distributor pieces or the lamp elements may have electrical or electronic components, for example, form a power supply to convert supplied voltages, in particular to convert down. The electrical or electronic components can also have a switching function in order to switch the lighting elements or the light-emitting diodes arranged therein on or off or to vary their brightness. For this purpose, control signals can be supplied. It can also be provided that sensors are provided in the intermediate pieces, the end pieces, the distributor pieces or the light-emitting elements, for example movement sensors which provide control signals for switching the light-emitting diodes.

In a further advantageous embodiment of the lighting system, the intermediate pieces, the end pieces and / or the distributor pieces are formed so that they can be plugged together with the lighting elements, for example by one into the tubular housing of the lighting elements inside have protruding neck on which the lamp element can preferably be pushed by clamping or latching. In an advantageous embodiment, a seal is provided which seals the intermediate piece or the end piece with respect to a lamp element. In this way, a desired insulation class, in particular the insulation class IP-65 for the lighting system can be realized. Preferably, the seal along a circumference of the protruding into a lamp element nozzle is arranged, for example, inserted in a circumferential groove. In this way, a seal can be made using a simple and inexpensive O-ring. A seal is particularly simple if the tubular housing of the luminaire elements has a circular cross-section. In principle, however, other cross sections, for example an oval or a rectangular cross section are possible.

For mounting the lighting system has this in a further advantageous embodiment, intermediate pieces, end pieces and / or manifolds on which arranged mounting elements, for example, are integrally formed. Such mounting elements may be, for example, feet with screw holes. Also, the use of latching hooks or clips as mounting elements is advantageous. The locking clips or latching hooks may for example be designed so that an assembly of a (protective) grid is possible, which is often used as a protection or separation element in machine houses or generally in plant construction.

In a further advantageous embodiment of the lighting system, at least one of the housings is rotatably mounted in the at least one intermediate piece, the end piece and / or the distributor piece. In this way, the corresponding housing can be rotated from the outside in order to set a radiation in a desired direction, if the lamp radially does not have a uniform radiation characteristic.

In a further advantageous embodiment of the lighting system, the LEDs of the lamp elements are arranged on boards, which are inserted into the transparent housing. Preference is given to a board holder, in particular made of plastic, is provided, which is arranged by clamping in the tubular housing and carries said board. When using a tubular housing of the lamp elements with a circular cross-section can be provided that the board is arranged rotatable about a longitudinal axis of the lamp element in the lamp element. In this way, the radiation can be directed in a desired direction with radially non-uniform radiation characteristic. Said board holder can advantageously be made in one piece from plastic in an injection molding process, wherein particularly advantageously the board is received in locking elements of the board holder.

The invention will be explained in more detail by means of embodiments with reference to figures. The figures show:

1 a first embodiment of a lighting system in an isometric view;

2 the lighting system of the 1 in an exploded isometric view;

3 - 5 in each case a further embodiment of a lighting system in an isometric view;

6 a further embodiment of a lighting system with a clamp in an isometric view and

7 the lighting system of the 6 mounted on a grid element.

In the 1 and 2 is a first embodiment of a light system with two light elements 10 shown. 1 gives the lighting system in an isometric view and 2 in an isometric exploded view again.

The two lamp elements each comprise a tubular housing 11 , which in the present case is a completely transparent pipe section with a circular cross-section. In every case 11 is a platinum carrier 12 introduced a circuit board 13 (Printed circuit board) with electronic components 14 and a number of light-emitting diodes (LEDs) 15 wearing.

The platinum carriers 12 are in the example shown plastic elements that the boards 13 record, in particular record detent. The platinum carriers are preferred 12 manufactured in one piece in an injection molding process. For holding the boards 13 is on the platinum carrier 12 a frame 121 Trained in the the board 13 can be clipped. On long sides of the frame 121 is present on each side in each case a clamping arm 122 arranged. The clamp arms 122 form sections of the inner contour of the housing 11 to. The clamp arms 122 are slightly springy and are after insertion of the platinum carrier 12 in the case 11 slightly biased, so they the board carrier 12 clamped in the housing 11 fix. With a circular cross-section of the housing 11 is the rotational position of the platinum carrier 12 around a longitudinal axis of the housing 11 not fixed, but can be set arbitrarily and as desired when installing the lighting system. The top the board 13 that the LEDs 15 can be aligned as needed.

In a development of the illustrated lighting elements 10 can be a double-sided board 13 which are also light emitting diodes on your bottom 15 contributes to allow a radiation in the opposite direction. It is also conceivable that LEDs 15 angled on the board 13 are arranged so that their main emission is not perpendicular to the board surface, but obliquely, possibly also parallel to the board surface and thus the LEDs 15 radiate to the side.

The application according to the luminaire system is characterized in that two or more lighting elements 10 through an intermediate piece 20 connected to each other. The intermediate piece 20 has an annular base portion 21 on, on both sides pipe socket 22 are formed. The pipe socket 22 have a diameter that is smaller than the inner diameter of the housing 11 so they are in the case 11 the lighting elements 10 can be introduced. At the pipe socket 22 is a groove all around 23 formed into an o-ring 24 is inserted, on the one hand a mechanically strong connection between the intermediate piece 20 and a plugged-on lighting element 10 conditionally and on the other hand the housing 11 sealed with the intermediate piece 20 combines. In this way, a desired insulation class, for example, the insulation class IP65 can be achieved for the lighting system.

At the the intermediate piece 20 opposite end of the respective lamp element 10 is the case 11 through a tail 30 completed. The tail 30 has one with the spacer 20 comparable structure, wherein of an annular base portion 31 a neck 32 with groove 33 and inlaid earring 34 However, only one way is provided. The base section 31 is by a molded or mounted cover 38 closed, taking in the lid 38 in the case shown in each case a cable bushing 39 is centrally located. Alternatively, a closed lid 38 at a tail 30 possible, if a cable feed into the lamp element 10 is not intended.

In operation, the illustrated lighting system through the cable gland 39 be supplied with a supply current via an inserted cable. It can on the board 13 arranged electronic components 14 a conversion of this supply voltage into one for the LEDs 15 be set suitable voltage or a suitable operating current. In particular, the electronic components 14 form a DC-DC converter. Alternatively, a supply with AC voltage is possible, wherein the electronic components 14 in the case of an AC to DC converter (power supply) form. Connection options for electrical cables can be found on both sides of the board 13 be provided so that a via a cable gland 39 supplied cable on one side of the board 13 can be connected and on the opposite side 13 another cable section to the board 13 of the adjacent luminaire element 10 through the intermediate piece 20 can be guided. Optionally, at the turn opposite end of the relevant board 13 be connected to another connecting cable, which then through the opposite cable gland 39 led to a next light system.

In addition to the setting of the emission direction of the luminaire elements 10 when installing the lighting system by aligning the board carrier 12 it can be provided that the tubular housing 11 itself rotatable in the intermediate piece 20 or the end pieces 30 are stored. The adjustment can be advantageously made after installation during operation of the lighting system.

In the 3 - 5 in each case a further embodiment of a lighting system is reproduced, each having a plurality of lighting elements 10 has, over different spacers 20 are interconnected and optionally have further elements.

In the embodiment of the 3 are four lighting units 10 used, which are identical to the lighting units 10 of the 1 and 2 are. In addition, an alternative embodiment of the lamp unit 10 used in 3 with the reference number 10a is marked. This differs from the lighting units 10 in the use of a longer piece of tubing, which is the tubular housing 11 forms.

The lighting unit 10a takes in her case 11 two of those already in the 1 and 2 shown board carrier 12 on. The juxtaposition of several structurally identical platinum carriers 12 with circuit boards 13 makes it possible to have different lengths of luminaire elements 10 . 10a to use without a variety of different boards 13 or platinum carriers 12 to have to hold. Of course, it is alternatively possible in longer lighting elements 10a also adapted longer boards 13 or platinum carrier 12 use.

The lighting elements 10 . 10a of the example of 3 are each over each other spacers 20 connected, the different angles between their sockets 22 can have. Left in the 3 is this from the example of 1 and 2 known grade intermediate piece 20 used. With the reference number 20a a spacer is used, in which the nozzle 22 perpendicular to each other. In the further course of the light system become intermediate pieces 20b and 20c used, each having smaller angles.

The differently angled tubular spacers 20 . 20a - 20c make it possible to perfectly adapt the lighting system to a surrounding geometry. This is particularly advantageous in narrow and angularly built machine houses or installations that can be perfectly illuminated with the lighting system according to the application.

4 shows a further embodiment of a lighting system in which a plurality of lighting elements 10 . 10a over different intermediate pieces 20b . 20d connected to each other. The intermediate piece 20d also provides an angle of 90 ° between lighting elements 10 . 10a that connects it to each other is unlike the intermediate piece 20a However, constructed in the manner of a curved pipe section, whereas the intermediate piece 20a has two mitred straight meeting pieces of pipe.

Next, the light system of the 4 an inserted switching unit 40 on, the controls 41 with which the different lighting elements 10 . 10a can be switched on or off. The switching unit 40 also includes nozzles on two end faces 42 to use with lighting elements 10 . 10a to be connected. As an alternative to a light element is on one side of the switching unit 40 a pipe 50 used, with respect to its diameter, the tubular housing 11 the lighting elements 10 . 10a corresponds and in this case serves as a cable guide. The pipe 50 ends in a manifold 60 , which is cube-shaped and corresponding to four sides nozzle for connecting lighting units 10 . 10a or the pipe 50 having. Through the distributor piece 60 becomes a not only linear arrangement of lighting elements 10 . 10a allows, but it can be built branched structures.

Another embodiment of a branched lighting system is in 5 shown. Here is a distributor 60a used, which has a hexagonal basic shape with corresponding six sockets.

The in the 1 - 5 illustrated lighting systems were uniform, each with spacers 20 or end pieces 30 provided that allow a Schraubbefestigung to a wall. In the 6 and 7 below, an embodiment is shown, in which an alternative mounting option is present.

6 shows in an isometric view the two lamp elements 10 comprehensive lighting system, the two lighting elements 10 over an intermediate piece 20 ' connected to each other and on the opposite side with two end pieces 30 ' Are completed. From the basic structure, the illustrated lighting system thus corresponds to the in 1 shown.

Unlike the system of 1 has the base section 21 of the intermediate piece 20 ' or the base section 31 of the tail 30 ' instead of the foot 35 with fastening holes on each a clamp attachment. This includes a central pillar 26 . 36 and two each side of the support 26 . 36 arranged latch hooks 27 . 37 ,

7 shows how the lighting system of 6 using the supports 26 . 36 or latching hook 27 . 37 on a grid element 1 can be determined. Such grid elements 1 For example, they are used as cable guides or as protective grids in plant construction. The pillars 26 . 36 are each provided with a groove-shaped incision, with which they on a grid of the grid element 1 be plugged. At the same time the catch hooks snap 27 . 37 with an undercut behind adjacent bars. The lighting system can in this way quickly and without tools on such a grid element 1 to be assembled.

LIST OF REFERENCE NUMBERS

10, 10a

lights element

11

casing

12

board support

121

frame

122

clamping arm

13

circuit board

14

module

15

LED (LED)

20, 20 ', 20a-d

connecting piece

21

base section

22

pipe socket

23

groove

24

O Rring

25

foot

26

support

27

latch hook

30, 30 '

tail

31

base section

32

pipe socket

33

groove

34

O-ring

35

foot

36

support

37

latch hook

38

cover

39

Grommet

40

switching unit

41

operating element

50

pipe

60, 60a

manifold

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2013/057660 A2 [0002]
• DE 202014004851 U1 [0003]

Claims (14)

Lighting system with at least two lighting elements ( 10 . 10 ' . 10a ) each a tubular and at least partially transparent housing ( 11 ), in which at least one light-emitting diode ( 15 ), characterized in that at least two of the lighting elements ( 10 . 10 ' . 10a ) via at least one tubular intermediate piece ( 20 . 20 ' . 20a -D) are interconnected. Lighting system according to claim 1, wherein the at least one intermediate piece ( 20 . 20 ' . 20a -D) is straight or angled, so that the two connected lamp elements ( 10 . 10 ' . 10a ) are in a predetermined geometry to each other. Lighting system according to claim 1 or 2, further comprising at least one end piece ( 30 ), with which one side of the tubular housing ( 11 ) of a luminous element ( 10 . 10 ' . 10a ) is completed. Lighting system according to claim 3, in which the end piece ( 30 . 30 ' ) a cable feedthrough ( 39 ) having. Lighting system according to one of claims 1 to 4, further comprising at least one distributor piece ( 60 . 60a ), which has more than two lighting elements ( 10 . 10 ' . 10a ) connects with each other. Lighting system according to one of claims 1 to 5, wherein the intermediate piece ( 20 . 20 ' . 20a -D), the tail ( 30 . 30 ' ) and / or the distributor piece ( 60 . 60a ) at least one in one of the lighting elements ( 10 . 10 ' . 10a ) projecting into neck ( 22 . 32 ) having. Lighting system according to claim 6, wherein the lighting element ( 10 . 10 ' . 10a ) clamping or latching with the neck ( 22 . 32 ) connected is. Lighting system according to claim 6 or 7, wherein a seal, in particular an O-ring ( 24 ), between the housing ( 11 ) of the luminaire element ( 10 . 10 ' . 10a ) and the neck ( 22 . 32 ) is arranged. Lighting system according to one of claims 1 to 8, wherein the at least one intermediate piece ( 20 . 20 ' . 20a -D), the tail ( 30 . 30 ' ) and / or the distributor piece ( 60 . 60a ) Mounting feet ( 25 . 35 ) exhibit. Lighting system according to one of claims 1 to 8, wherein the at least one intermediate piece ( 20 . 20 ' . 20a -D), the tail ( 30 . 30 ' ) and / or the distributor piece ( 60 . 60a ) Locking elements, in particular latching hooks ( 37 ), have to be mounted. Lighting system according to one of claims 1 to 10, wherein at least one of the housing ( 11 ) in the at least one intermediate piece ( 20 . 20 ' . 20a -D), the tail ( 30 . 30 ' ) and / or the distributor piece ( 60 . 60a ) is rotatably mounted. Lighting system according to one of Claims 1 to 11, in which the at least one light-emitting diode ( 15 ) on a board ( 13 ) arranged on a platinum carrier ( 12 ) in the housing ( 11 ) is inserted. Lighting system according to claim 12, wherein the board carrier ( 12 ) clamped in the housing ( 11 ) is arranged. Lighting system according to claim 12 or 13, wherein the board carrier ( 12 ) about a longitudinal axis of the housing ( 11 ) rotatably in the housing ( 11 ) is arranged.

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