EP1963734B1 - Built-in illuminator as an interior and exterior light - Google Patents

Abstract

Disclosed is a built-in illuminator (10) which is used as an exterior and interior light and comprises an LED wafer (20) that is disposed in a housing (11) and can be inserted into an elongate hole (26) in a wall. In order to further develop said built-in illuminator (10) such that the same can be incorporated into thin-walled tubes (25) with a light diffusion surface lying flush in the external face, the housing (11) matches the shape of the elongate hole (26) in the wall (27) of the tube (25), the width of the housing (11) matching the width of the elongate hole (26) and the length thereof being greater than the length of the elongate hole (26). Furthermore, both ends of the housing (11) are provided with notches which are embodied as flanged ends (12) with a light diffusion point (15) that protrudes therebetween, the height of the protrusion matching the thickness of the wall (27) and the light diffusion surface (16) of the light diffusion point (15) lying flush inside the external face of the wall (27). The housing (11) is fitted with a hollow space into which the LED wafer (20) that encompasses electrical connection means is inserted. The housing (11) is also fitted with means for attaching the built-in illuminator (10) to the wall (27).

Description

Technical environment

The invention relates to a recessed luminaire as exterior and interior luminaire with a LED board arranged in a housing, which can be inserted into a slot - shaped section of a wall, in particular of a pipe. By means of light-emitting diodes (LED) can be converted into electrical energy with respect to incandescent significantly improved efficiency in light. This type of light generation is not only advantageous because of the efficiency, but also because of the low maintenance requirement, but have LEDs compared to incandescent lamps significantly increased life. As well as LED's which emit white light, LED's that emit colored light can also produce lighting effects, such as danger warning by red light or the attraction of attention by flashing light and much more. Thus, LEDs can be widely used as a means of energy-saving lighting. Many LED's in parallel cause a (relatively) high power consumption, so that advantageously several LEDs are connected in series to reduce the terminal voltage, but the power consumption is maintained at the level of an LED.

State of the art

In order to achieve elongated lighting, such LED boards are also used as LED strip modules, especially for stairs and transitions: here there is the problem that sufficient lighting, especially in the step area or outdoors is not present, and thus the risk of accidents very large is. The recessed light after EP 1 498 656 , in particular for tunnels, has a number of modularly assembled with LED's printed circuit boards and is inserted into a tubular protective housing so that its wall in constrictions the circuit board this holds. The recessed light after US Pat. No. 6,145,996 for gears. Corridors or steps in the theater are similarly held in the receptacle with their light exit surface rising above the surface of the wall of the receptacle. The insertable into tubes recessed luminaire after JP 070 305 474 is to be pushed axially into this. The recessed luminaire designed as a rod-shaped module with LED's DE 10 2005 041 333 is inserted into an opening or a recess of a tubular body and connected to it so that a removal is at least difficult, wherein the light exit surface is flush in the outer wall of the tubular body. The type of insertion limits the use of this recessed light in thin-walled pipes and does not allow economic assembly: further requires this type of introduction special means for holding the recessed light, which question a replaceability in question.

task

This results in the object of this invention underlying object to provide a recessed light as indoor and outdoor lamp with an LED board in a housing which is interchangeable installed even in thin-walled tubes flush with the outside light exit surface, so that in particular step areas on stairs and Transitions can be better illuminated.

solution

The task solution according to this invention is defined by the features contained in the characterizing part of the main claim: advantageous developments and preferred embodiments describe the dependent claims.

According to the invention, the recessed luminaire consists essentially of an elongated LED board, which is responsible for the light witness, from an elongated housing in which the LED board is inserted and means for connecting the LED board to an electrical supply. The number of LEDs can be designed flexibly: The board can also be equipped with LEDs, designed in different colors. The recessed luminaire is advantageously used in pipes. Their light exit side is flush with the surface of the tube. It does not matter if the tube is round, rectangular or square.

For example, if the pipe forms a handrail, the elongate lamp is located in the area of the handrail. Advantageously, the light exit surface is flush with the handrail. An advantage is that the handrail, despite the unit can be fully touched. The hand does not have to let go of the handrail to get past the recessed luminaire. The lamp becomes one with the handrail without getting over or disturbing the handrail. The LED's of the illuminant (in the recessed luminaire) illuminate the step area directly through the transparent cutout of the housing. It is thereby achieved that, in particular, the light of the luminous means radiates towards the step area, so that a safe rising and leaving in the dark is made possible.

The LED board is inserted into a housing whose width corresponds to the width of the oblong hole and whose length is greater than the length of the oblong hole. As a result, the recessed light can be inserted through the slot. The housing has a light outlet, which is followed on both sides by recessed flange ends, which initially slide when inserting under one end of the slot. After insertion, the housing is then brought into position so that both flanged ends lie on both sides of the cutout behind the wall.

Advantageously, the housing is made of plastic, it has a cavity for the LED board. In one embodiment, the housing is integrally molded. Alternatively, the housing is made of a resinous cast enclosing the circuit board. In this case, at least the light exit surface, but advantageously the entire housing is formed from a clear plastic. The LED board is encapsulated with a potting compound, preferably a transparent resin, so that the LED board is waterproof and corrosion-resistant fixed in the housing. On the housing brackets are formed, which allow different types of fasteners, and with which the built-in recessed light is held in the tube. In both embodiments molded receiving pockets for the LEDs may be provided.

In a first embodiment, the flange ends are provided with bushings, so that the housing used with screws. Rivets o. The like. Can be directly attached. If one of the wall with slot opposite wall exists, long screws can be set through the bushings, which are screwed against the inside of the opposite wall, press the flange of the housing inserted into the slot recessed light against the inside of the provided with the slot wall ,

In a second embodiment, in particular for use in pipes, the rear side of the housing is designed to receive springs, by means of which the flange ends press against the inner sides of the slot wall on the inside of the slot wall opposite wall elastically stretched supporting. As springs, two compression springs used in the passages of the flange ends can serve: alternatively, an arcuate pressure spring can be provided on the back of the LED board.

The LED boards as lighting can be plugged from unit to unit and connected so that it does not matter if one or more units are connected. In this case, LEDs of different colors can be used. The light itself can with motion detectors, switches, digital controls, timer u. v. m. be switched.

The LEDs are set on boards which have interconnects connected to the LEDs. In this case, the conductor track image is designed such that the LEDs are grouped together so that the terminal voltage corresponds to the supply voltage of the groups. In this case, different LED combinations - such as different colors emitting LEDs - may be provided on a board that allows different circuits. In order to connect the LED boards electrically, the connections are led out freely. Alternatively, direct plug-in connections - as known from the motor vehicle electrical system - are provided, which cooperate with plug connections of the supply lines, allowing the connection to the power supply.

Such a lamp as exterior or interior light is suitable for many applications. Examples of this are for the interior: furniture, cloakrooms. Wardrobes (light unit in the support tube for the hangers). Lighting in living areas, lighting in rehabilitation areas, desk lighting, counter lighting. Dining table lighting, picture lighting, worktop lighting (kitchen), u. v. m. and for outdoor use: Carport lighting: letterbox lighting. Lighting in entrance areas. Door u. Door handles. Canopies, cars (tuning and accessories). Caravan. Boatbuilding, parapet railing. Bicycle stand, bicycle bar. Steel construction. Mechanical Engineering u. v. m. The design and method of fixing these luminaires used in different different situations are the same.

Description of the drawings

Fig. 1:

Einbauleuchte (Ansicht - Isometrie-Darstellung):

Fig. 2:

Einbauleuchte nach Fig. 1 (Draufsicht).

Fig. 2a:

Einbauleuchte (Seitenansicht).

Fig. 2b:

Einbauleuchte (Stirnseitenansicht - Schnitt B-B, Fig. 2a);

Fig. 2c:

Einbauleuchte (Seitenansicht-Schnitt C-C. Fig. 2);

Fig. 3:

Einbauleuchte, eingebaut (Queransicht geschnitten):

Fig. 3a:

Stirnseitenansicht:

Fig. 4:

LED-Platine (Ansicht - Isometrie-Darstellung):

Fig. 5:

LED-Platine nach Fig. 4 (Seitenansicht).

Fig. 5a:

LED-Platine (Stirnseitenansicht)

Fig. 5b:

LED-Platine (Draufsicht);

Fig. 6:

Gehäuse (Ansicht - Seitenansicht),

Fig. 6a:

Gehäuse (Draufsicht).

Fig. 6b:

Gehäuse (Seitenansicht, Schnitt B-B),

Fig. 6c:

Gehäuse (Stirnseitenansicht, Schnitt C-C):

Fig. 7:

Gehäuse und LED-Platine zum Zusammenfügen:

Fig. 8:

Formgespritztes Gehäuse mit eingesetzter LED-Platine (Seitenansicht).

Fig. 8a:

Formgespritztes Gehäuse (Stirnseitenansicht, Schnitt B-B Fig. 6a):

Fig. 9:

Einbauleuchte am Rohr mit Schrauben befestigt,

Fig. 9a:

Einbauleuchte mit Klemmstift befestigt:

Fig. 10:

Einbauleuchte am Rohr mit Druckfeder befestigt.

Fig. 10a:

Einbauleuchte mit Bügelfeder befestigt.

The essence of the invention will become apparent in the FIGS. 1 to 10 illustrated embodiments illustrated in more detail; show:

Fig. 1:

Recessed luminaire (view - isometric view):

Fig. 2:

Downlight after Fig. 1 (Top view).

Fig. 2a:

Recessed light (side view).

Fig. 2b:

Recessed luminaire (front view - section BB, Fig. 2a );

Fig. 2c:

Recessed luminaire (side view section CC. Fig. 2 );

3:

Recessed luminaire, installed (cross-section cut):

Fig. 3a:

End view:

4:

LED board (view - isometric view):

Fig. 5:

LED board after Fig. 4 (Side view).

Fig. 5a:

LED board (front view)

Fig. 5b:

LED board (top view);

Fig. 6:

Housing (view - side view),

6a:

Housing (top view).

Fig. 6b:

Housing (side view, section BB),

Fig. 6c:

Housing (front view, section CC):

Fig. 7:

Housing and LED board to join:

Fig. 8:

Molded housing with inserted LED board (side view).

8a:

Molded housing (front view, section BB Fig. 6a ):

Fig. 9:

Recessed luminaire attached to the pipe with screws,

Fig. 9a:

Recessed luminaire fixed with clamping pin:

Fig. 10:

Recessed light mounted on tube with compression spring.

Fig. 10a:

Recessed light fixed with bow spring.

embodiments

The FIG. 1 shows in the perspective view of such a recessed luminaire 10, which has an elongate housing 11, which for insertion one of the shape of the elongated hole 26 (FIG. Fig.9, 10th ) of a wall 27 is formed accordingly. In this case, the width of the housing 11 corresponds to the width of the elongated hole 26, while its length is greater than the length of the elongated hole 26. This shape allows the recessed luminaire 10 can be inserted through the opening of the elongated hole 26. The notches provided on both sides engage behind the positioning of the recessed luminaire 10 used as its flange 12, the wall 27 of the tube 25 and thus allow their definition. For this purpose, the flange 12 are provided for receiving fasteners with bushings 13 and can thus be formed with these, for example as screws 17.1 and passed through holes 28 in the wall of the tube 25, are attached directly to this. After installation and positioning of the recessed luminaire 10 with its light exit 15 in the slot opening 26 of the light exit 15 is in the wall of the tube 25, wherein the light exit surface 16 is flush with the outside thereof.

The recessed light 10 is - as from the Figures 2 to recognize - from the housing 11, in the cavity of an LED board 20 is used with a number of LEDs 21. For this purpose, board holders 14 are provided in the two ends of the cavity. In order to achieve watertightness and also to protect the connection means against corrosion, the LED board 20 inserted into the cavity of the housing 11 is cast with resin in order to achieve watertightness required for outdoor use. The end faces 22 of the LED's 21 of the board 20 through which the light exits, are directed to the inside of the light exit 15 of the housing 11.

About provided on the board interconnects (not shown in detail), the LEDs 21 are connected to each other, as well as with the two, making the electrical connections to the outside enabling connector 23 with tabs 23.1 on the end faces 22 of the LED's 21 opposite side the LED board 20 are provided. The tabs 23.1 allow the connection of the supply line with appropriate (known from the automotive electrical system) connectors. It appears, of course, instead of the connectors also provide lead-out terminals, which then in a conventional manner to the power supply, for. be connected with plugs.

The recessed luminaire 10 can be advantageously created with a housing formed further, which - as in FIG. 8 shown as a housing 11 '- also molded or molded. In this case, the arranged on the LED board 20 LEDs 21 are in molded receiving pockets 11.1. whose end faces 22 are directed towards the inside of the light exit 15. The LED board 20 is sealed waterproof with resin 14.1. This recessed luminaire is also suitable for outdoor use as well as for underwater use.

The light emission is influenced by the type of potting. If the LEDs are completely encapsulated, resin is located between the end faces 22 of the LEDs and the inside of the light exit 15. The emerging light is widened to a nearly flat light distribution. Form the sockets of the LED's and / or their sides in cooperation with the receiving pockets 11.1 due to their fit of the insert base or surface seals, the end faces of the LED's are free of resin. If the end faces 22 of the LED's and the inner side of the light exit 15 are spaced apart, the original light exit angle of the LEDs - about 15 ° - is maintained, which causes a light distribution with highlighted light maxima of the individual LEDs.

As a fastening means for the provided with a slot 26 wall 27 of a tube 25 recessed luminaire 10 17.1 threaded pins 17.2 may be provided in addition to the directly acting screws arranged through the both sides of the elongated hole 26 holes 28 of the pipe wall and the passages 13 of the housing 11 against the the provided with the slot 26 wall of the tube 25 opposite Screwed pipe wall, abut against this and the recessed light 10 to the wall 27 with slot 26 so press that the flange 12 of the housing 11 engage behind this tube wall 27 and the light exit 15 in the slot 26 is such that the light exit surface 16 flush in the outside this pipe wall 27 is located. It is understood, of course, provide instead of the connectors also led out terminal ends, which are then connected in the usual way to the power supply lines.

As an alternative to screw fastening a spring attachment is provided. For this purpose, in one embodiment, compression springs 18 are inserted into the passages 13 of the housing 11 with their ends formed as plug ends 18.1. After positioning the recessed luminaire 10, the other free ends are in contact with the wall 29 opposite the wall 27 of the tube 25 provided with the oblong hole 26, and hold the recessed luminaire 10 in its installed position. In a second embodiment, a bow spring 19 is provided, the ends of which are inserted as plug ends 19.1 inserted into the bushings 13, after positioning the recessed light 10 at the provided with the slot 26 wall 27 opposite wall 29 of the tube 25 with elastic voltage fitting, the recessed light 10 holds in its installed position.

LIST OF REFERENCE NUMBERS

10

recessed light

11

casing

11 '

Housing molded or molded

11.1

Molded storage bag

12

flanging

13

execution

14

PCB holder

15

light output

16

Light-emitting surface

17.1

screw

17.2

Set screw

18

compression spring

18.1

plug-in end

19:

bow spring

19.1

plug-in end

20

LED board

21

LED

22

(LED) face

23

connector

23.1

tongue

24

25

pipe

26

Long hole

27

Wall with slot

28

drilling

29

Wall (opposite the wall 27)

Claims (8)

1. Built-in light for use as an external and internal light, having an LED circuit board (20) arranged in a housing (11), which can be inserted into an elongated hole (26) in a wall (27) with an additional opposite wall (29) of a tube, wherein the housing (11), corresponding to the shape of the elongated hole (26), has a width equal to the width of said hole and a length that is larger than the length thereof, and wherein between both the flanged ends (12), fitted with notches, of the housing (11) a projection with light outlet (15) and a light output surface (16) is constructed, the height of which corresponds to the thickness of the wall (27), such that the built-in light can be installed with the light output surface (16) lying flush in the outside of the wall (27), wherein the housing (11) comprises a cavity into which the LED circuit board (20), fitted with means for connecting to an electrical voltage supply, is inserted, and wherein the housing (11) comprises means for fixing the built-in light (10) on the wall (27), characterized in that as means for fixing the light (10) in the tube (10), threaded pins (17.2) are provided in the flanged ends (12), which are screwed into through holes (13) and, after positioning of the light (10), can be screwed through until they rest supportively against the wall (29) lying opposite the wall (27) fitted with the elongated hole (26) for the purpose of fixing said light.
2. Built-in light for use as an external and internal light, having an LED circuit board (20) arranged in a housing (11), which can be inserted into an elongated hole (26) in a wall (27) with an additional opposite wall (29), in particular of a tube, wherein the housing (11), corresponding to the shape of the elongated hole (26), has a width equal to the width of said hole and a length that is larger than the length thereof, and wherein between both the flanged ends (12), fitted with notches, of the housing (11) a projection with light outlet (15) and a light output surface (16) is constructed, the height of which corresponds to the thickness of the wall (27), such that the built-in light can installed with the light output surface (16) lying flush in the outside of the wall (27), wherein the housing (11) comprises a cavity into which the LED circuit board (20), fitted with means for connecting to an electrical voltage supply, is inserted, and wherein the housing (11) comprises means for fixing the built-in light (10) on the wall (27), characterized in that as means for fixing, at least one tensioned spring is provided that is supported on the wall (29) lying opposite the wall (27) fitted with the elongated hole (26).
3. The built-in light according to Claim 2, characterized in that as a tensioned spring, two pressure springs (18) arranged as a pair are provided, which are arranged for fixing purposes on the side of the housing (11) lying opposite the light outlet (15), and the one ends of which are inserted into through holes (13) in the flanged ends (12), and the other ends thereof, after positioning of the light (10), rest with elastic tension against the wall (29) lying opposite the wall (27) fitted with the elongated hole (26).
4. The built-in light according to Claim 2, characterized in that as a tensioned spring, a bow spring (19) is provided, which is arranged for fixing purposes on the side of the housing (11) lying opposite the light outlet (15), and the ends of which are inserted into the through holes (13) in the flanged ends (12), and the bow apex thereof, after positioning of the light (10), rests with elastic tension against the wall (29) lying opposite the wall (27) fitted with the elongated hole (26).
5. The built-in light according to Claims 1 to 4, characterized in that the LED circuit board (20) is fitted with a number of LEDs (21), which are connected in one or more group(s), wherein each group has at least one separate connection to the voltage supply.
6. The built-in light according to Claims 1 to 5, characterized in that the housing (11) is produced as a plastic part, preferably as a plastic injection-moulded part.
7. The built-in light according to Claim 5 or 6, characterized in that circuit board holders (14) are provided in the cavity of the housing (11), which retain and hold the inserted LED circuit board (20) in such a way that the front face (22) of each of the LEDs (21) faces the housing (11), and wherein at least for the light outlet (15) a clear plastic is provided, the cavity preferably being moulded with resin.
8. The built-in light according to Claim 5 or 6, characterized in that retaining pockets (11.1) are moulded into the cavity of the housing (11) facing the light outlet (15), which retain the LEDs (21) arranged on the LED circuit board (20), the front faces (22) of which are directed towards the inner side of the light outlet (15).

Images