DE202014104801U1 - Elongated LED light - Google Patents

Abstract

Luminaire comprising - a profile-like support member (1) extending along a longitudinal axis (L), - an LED light source (2), - a holding element (3) for mounting the lamp on a, in particular in the form of a support rail formed light carrier, wherein in a cross section normal to the longitudinal axis (L) viewed through the carrier element (1), a first compartment (I) and a second compartment (II) are formed and the LED light source (2) in the first compartment (I) is arranged and the holding element (3) in the second compartment (II), characterized in that the carrier element (1) is formed from a bent component, such that viewed in the cross section the first compartment (I) and the second compartment (II) are completely separated from each other by a separating region (11) of the carrier element (1).

Description

The invention relates to an elongated LED light (LED: light-emitting diode), also referred to herein as "LED bar light".

The Applicant sells under the name TECTON a trunking system with a mounting rail and a corresponding LED bar light, which is intended to be fixed from below to the mounting rail. In the mounting rail electrical conductors run to power the lamp.

The lamp has an elongated, profile-like support element. By means of a, arranged on the support element, so-called rotary knob, the lamp can be mechanically connected by locking with the support rail; In addition, can be produced by the rotary knob when making the mechanical connection and an electrical contact with the conductor tracks in the mounting rail, so that in this way a power supply of the lamp is guaranteed.

Since in comparison to a luminaire with a fluorescent lamp as the light source with a corresponding LED lamp of the rotary knob from the bottom is not accessible, the LED light is designed such that the rotary knob has a lateral actuating arm which passes through an opening in the support element and can be operated from the outside.

It has now been found that in principle there is the possibility that over the opening through which the actuating arm of the rotary knob protrudes, a certain unwanted light emission occurs. This is because part of the light emitted by the LEDs can be reflected and thrown back up within a light emitting area and then exit through the opening through which the operating arm protrudes; this is generally undesirable, in particular it is usually perceived as unpleasant.

In order to prevent a corresponding light emission through the opening of the support element, the use of separate covering elements would be conceivable that cover the opening accordingly. However, this is associated with increased assembly costs; Moreover, there is basically the risk of incorrect installation of the cover elements.

The invention has for its object to provide a corresponding improved luminaire; In particular, the luminaire should allow easy manufacture and have a reduced probability of light leakage through the opening of the actuating arm.

This object is achieved according to the invention with the object mentioned in the independent claim. Particular embodiments of the invention are indicated in the dependent claims.

According to the invention, a luminaire is provided, which has a profile-like carrier element which extends along a longitudinal axis, an LED light source, and a holding element for holding the luminaire on a, in particular in the form of a support rail formed light carrier. In this case, viewed in a cross section normal to the longitudinal axis through the carrier element, a first compartment and a second compartment are formed, wherein the LED light source is arranged in the first compartment and the holding element in the second compartment. In this case, the carrier element is formed from a bent component, such that, viewed in the cross section, the first compartment and the second compartment are completely separated from one another by a separating region of the carrier element.

Because the carrier element is formed from a bent component, it can be produced in a particularly simple and cost-effective manner. Nevertheless, the formation of the two compartments makes it possible to ensure that no light from the first compartment, in which the LED light source is located, penetrates into the second compartment and leaves the luminaire in an undesired manner.

Preferably, a fold is formed by the carrier element for complete separation of the two compartments. In this way, advantageously, a corresponding passage of light from the first to the second compartment can be prevented with particular reliability. If the fold comprises a 180 ° bend, it can be designed with particularly advantageous use of space.

Preferably, in the cross-section, the second compartment, at least in a first approximation, has a U-shape with a first U-leg, a second U-leg and a connecting leg connecting the two U-legs, wherein the fold is one through the first U Hamstring set level interspersed. In this way, a passage of light from the first compartment into the area of the first U-leg can be particularly suitably prevented, in particular if the fold is formed between the separation area and the first U-leg. This is particularly advantageous if in the first U-leg, a passage opening for an actuating arm or the like of the holding element is formed.

Preferably, the connecting leg is at least predominantly formed by the separation region. As a result, in particular a small-scale design is possible.

Preferably, the first U-leg has a recess, in particular a through opening, wherein the retaining element is arranged passing through the recess. In this way it is possible to achieve that the holding element can be operated particularly suitably from an outside area of the luminaire.

Preferably, viewed in the cross section, the first compartment, at least in a first approximation, a further U-shape with a further first U-leg, another second U-leg and one, the two other U-legs connecting connecting leg, the latter at least predominantly the separation area is formed. As a result, a particularly suitable use of space is made possible in particular for the design of the lamp.

Preferably, as viewed in the cross section, the separating region of the carrier element is formed by a preferably rectilinear leg which consists only of one layer of the component. As a result, in particular the carrier element can be made particularly material-saving. In particular, the LED light source and / or the holding element are arranged in a space-saving manner and preferably held on the separating region. In this case, the LED light source is preferably arranged on a first side of the separating region and the holding element is arranged on a second side of the separating region lying opposite the first side.

Preferably, the carrier element consists of a sheet metal part. This is manufacturing technology advantageous.

The invention is explained in more detail below with reference to an embodiment and with reference to the drawings. Show it:

1 a perspective sketch of an embodiment of a lamp according to the invention,

2 a perspective sketch of a support element of the lamp,

3 a cross-sectional sketch of the support element,

4 a cross-sectional diagram of the carrier element with an LED light source and an optical element and

5 a perspective sketch of a holding element of the lamp.

1 shows a perspective sketch in the manner of an exploded view of an embodiment of a lamp according to the application. The luminaire comprises a profile-like carrier element 1 which extends along a longitudinal axis L. In particular, the longitudinal axis L here runs parallel to that through the profile shape of the carrier element 1 fixed axis. Furthermore, the lamp comprises an LED light source 2 , The LED light source 2 serves to generate a light that is emitted by the lamp.

As in 5 indicated, the lamp further comprises a holding element 3 , For example in the form of a lever, in particular in the form of a rotary knob. The holding element 3 is designed to hold the lamp to a light carrier. The light carrier may, for example, be a mounting rail, in particular a mounting rail of a lighting system. Accordingly, the light carrier may also be elongated, being oriented parallel to the light when the light on it as intended by the holding element 3 is arranged. The luminaire can accordingly be a continuous line luminaire.

In 3 is a cross section of the carrier element 1 normal to the longitudinal axis L sketched. In this cross-section are considered by the carrier element 1 a first compartment I and a second compartment II educated. In 4 a corresponding cross section is sketched, which continues to be the LED light source 2 shows. The LED light source 2 is in the first compartment I arranged. How out 5 hinted, is the holding element 3 in the second compartment II arranged.

As in 4 indicated by way of example, the luminaire can have a light exit area 5 through which the from the LED light source 2 generated light enters an outdoor area of the luminaire. In particular, the light exit area 5 through a light emission opening of the first compartment I be formed. In the example shown is between the LED light source 2 and the light exit area 5 an optical element 4 for influencing the of the LED light source 2 emitted light.

The carrier element 1 is manufacturing technology advantageously formed from a bent component, in particular a bent sheet metal part. In the carrier element 1 Thus, it may be a sheet metal profile part, wherein the given by the profile shape axis is parallel to the longitudinal axis L.

How out 3 is apparent, the component is bent such that viewed in the cross section, the first compartment I and the second compartment II through a separation area 11 the carrier element 1 are completely separated from each other. In this way, you can reduce the likelihood that light from the LED light source 2 from the first compartment I in the second compartment II penetrates and in addition - undesirable - leaves the light.

How out 3 as an example, is by the support element 1 preferably for complete separation of the two compartments I . II a fold 12 educated. In particular, the fold includes 12 a 180 ° bend. In the example shown is the fold 12 formed by a bend with a, parallel to the longitudinal axis L extending bending line. The 180 ° bend is designed such that the two, adjacent to the bending line portions of the support element 1 contact surface. This is a particularly space-saving, suitable separation of the two compartments I . II allows.

How farther 3 as an example, preferably has the second compartment in the cross section II at least to a first approximation, a U-shape with a first U-leg 14 , a second U-leg 15 and one, the two U-thighs 14 . 15 connecting connecting leg on; In this case, furthermore, the design is preferably such that the fold 12 one, through the first U-leg 14 fixed level E interspersed. In the example shown, this plane E runs parallel to the longitudinal axis L. In particular, the first U-leg 14 and the second U-leg 15 be provided for the connection of the lamp with the light carrier to be attached to the light carrier.

Advantageously, the connecting leg of said U-shape of the second compartment II at least predominantly through the separation area 11 the carrier element 1 be formed. The wrinkle 12 is preferably between the separation area 11 and the first U-leg 14 educated. Further preferably, the design is such that the bend line of the fold 12 on a first side of the plane E and a middle region of the separation area 11 on the opposite side of the second level E.

As an example in the 2 and 5 sketched, points the first U-thigh 14 preferably a recess 141 , in particular a through opening, wherein the retaining element 3 the recess 141 is arranged through. In the example shown, the retaining element 3 formed by a rotary knob having an actuating arm, wherein the actuating arm, the recess 141 interspersed, so that a suitable operation from outside the lamp ago is possible.

In this case, the design is, for example, such that, by an actuation of the actuating arm, the rotary knob moves back and forth between a mounting position and an operating position, in particular, can be rotated. In the mounting position, the lamp can be attached to the light carrier, so for example the mounting rail. Once the lamp is positioned as intended with respect to the light carrier, the actuating arm can be actuated so that the rotary knob is rotated from the mounting position to the operating position. In the operating position, the lamp is provided as for an operation of the lamp, connected to the light carrier, that is arranged mechanically held on the light carrier.

Preferably, the retaining element 3 Furthermore, designed so that it not only serves for the mechanical mounting of the lamp to the light carrier, but also allows an electrical connection between the light carrier and the lamp, said electrical connection is made when the holding element 3 in the operating position, but not when the retaining element 3 located in the mounting position. Accordingly, the holding element 3 For this purpose, in particular electrical contact areas, which are configured, for example, to contact corresponding electrical conductors, which are arranged in the light carrier or the support rail for the power supply of the lamp.

Through the fold 12 leaves the recess 141 so to speak, from the side of the first compartment I cover, so that a corresponding passage of light is prevented at this point.

Further preferably, as viewed in the cross section, the first compartment I at least in a first approximation, another U-shape with another first U-leg 16 , another second U-leg 17 and one, the two other U-legs 16 . 17 connecting connecting leg, wherein the latter at least predominantly through the separation region 11 is formed. The light exit area 5 can in particular between the other first U-leg 16 and the other second U-leg 17 be formed.

In the example shown, the separation area 11 designed plan so that it is determined by him another level E ', preferably to the first mentioned, so by the first U-leg 14 fixed plane E is oriented vertically. For example, it can be provided that the luminaire is aligned for operation in relation to the vertical, that the separation area 11 or the further plane E 'is horizontally oriented.

Accordingly, here extend the first U-leg 14 and the second U-leg 15 the U-shape of the second compartment II starting from the separation area 11 or the further plane E 'in a first direction - also referred to as "up" here - and the other first U-leg 16 and the other second U-leg 17 the U-shape of the first compartment I in the opposite direction - here also referred to as "down".

In the example shown, the design of the carrier element 1 such that the distance δ1 between the first U-leg 14 and the second U-leg 15 is slightly smaller than the distance δ2 the other first U-leg 16 and the other second U-leg 17 , For example, it may be provided that the relationship 3/4 δ2 <δ1 <δ2 applies.

Preferably, viewed in the cross section of the separation area 11 the carrier element 1 is formed by a preferably straight leg, which consists only of a layer of the component.

As in the example shown, the case is preferably the LED light source 2 and / or the retaining element 3 at the separation area 11 held arranged. In particular, the LED light source 2 on a first page of the separation area 11 - Here so below - arranged and the holding element 3 on a first side opposite the second side of the separation area 11 - here above - arranged.

At the separation area 11 can be a bearing element 115 be formed, for example in the form of a curved punched, which serves for pivotal mounting of the retaining element 3 serves.

The LED light source 2 includes, for example, a circuit board 21 with LEDs arranged thereon 22 at the separation area 11 - For example, immediately - is arranged.

Preferably, the carrier element 1 continue another fold 13 on, with respect to a, parallel to the longitudinal axis L extending, in 3 indicated, median plane M of the lamp analogous to the first-mentioned fold 12 is designed. Preferably, furthermore, the second U-leg 15 correspondingly symmetrical to the first U-leg 14 educated; particularly preferred is the carrier element 1 designed symmetrically with respect to the median plane M.

The lamp allows in particular a cost-effective production; the carrier element 1 can be advantageously produced by bending, for example, roll bending. An unwanted passage of the LED light source 2 radiated light into the second compartment II in which the retaining element 3 is arranged, can be practically prevented. In particular, it is not necessary here that subsequently separate elements must be inserted or mounted.

Claims (12)

Luminaire comprising - a profile-like carrier element ( 1 ) extending along a longitudinal axis (L), - an LED light source ( 2 ), - a holding element ( 3 ) for mounting the lamp on a, in particular in the form of a support rail formed light carrier, wherein viewed in a cross section normal to the longitudinal axis (L) by the support element ( 1 ) a first compartment ( I ) and a second compartment ( II ) and the LED light source ( 2 ) in the first compartment ( I ) is arranged and the retaining element ( 3 ) in the second compartment ( II ), characterized in that the carrier element ( 1 ) is formed from a bent component, such that in the cross-section the first compartment ( I ) and the second compartment ( II ) through a separation area ( 11 ) of the carrier element ( 1 ) are completely separated from each other. Luminaire according to claim 1, in which by the support element ( 1 ) for the complete separation of the two compartments ( I . II ) a fold ( 12 ) is formed. Luminaire according to Claim 2, in which the fold ( 12 ) comprises a 180 ° bend. Luminaire according to Claim 2 or 3, in which, viewed in the cross-section, the second compartment ( II ) at least to a first approximation a U-shape with a first U-leg ( 14 ), a second U-leg ( 15 ) and one, the two U-legs ( 14 . 15 ) connecting connecting leg, wherein the fold ( 12 ) one, through the first U-leg ( 14 ) defined level (E). Luminaire according to claim 4, wherein the connecting leg at least predominantly through the separation area ( 11 ) is formed. Luminaire according to claim 4 or 5, wherein the fold ( 12 ) between the separation area ( 11 ) and the first U-leg ( 14 ) is formed. Luminaire according to one of claims 4 to 6, wherein the first U-leg ( 14 ) a recess ( 141 ), in particular a passage opening having, wherein the retaining element ( 3 ) the recess ( 141 ) is arranged through. Luminaire according to one of claims 4 to 7, in which viewed in the cross section, the first compartment ( I ) at least in a first approximation another U-shape with a further first U-leg ( 16 ), another second U-leg ( 15 ) and one, the two other U-legs ( 16 . 17 ) connecting connecting leg, wherein the latter at least predominantly by the separation region ( 11 ) is formed. Luminaire according to one of the preceding claims, in which viewed in the cross section of the separation area ( 11 ) of the carrier element ( 1 ) is formed by a preferably rectilinear leg, which consists only of a layer of the component. Luminaire according to Claim 9, in which the LED light source ( 2 ) and / or the retaining element ( 3 ) at the separation area ( 11 ) are arranged. Luminaire according to Claim 10, in which the LED light source ( 2 ) on a first side of the separation area ( 11 ) is arranged and the retaining element ( 3 ) on a first side opposite the second side of the separation area ( 11 ) is arranged. Luminaire according to one of the preceding claims, in which the carrier element ( 1 ) consists of a sheet metal part.

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