CN1751206A - built-in light - Google Patents

Abstract

The invention relates to a built-in lamp comprising a carrier, a bulb fitting and a reflector, wherein the carrier is fixable on a mounting surface (11), in particular a ceiling of a room, wherein the reflector comprises at least one first reflector region (15) which is followed, in the direction of illumination, by a second reflector region (16) which is detachable from the first reflector region (15) so as to allow replacement of the bulb.

Description

built-in light

technical field

The present invention relates to a built-in lamp comprising a bracket, a bulb fitting and a reflector, wherein the bracket is fixable on a mounting surface, in particular the ceiling of a room.

Background technique

Such built-in lamps are known from the prior art in various forms, for example as downward-firing lamps or as upward-firing lamps. These built-in lamps usually have a bulb fitting whose longitudinal axis runs perpendicularly or obliquely to the direction of lighting, or substantially parallel to the mounting surface. Said orientation of the bulb fitting is often optional, especially when using compact fluorescent lamps, since the orientation reduces the installation height of the lamp.

However, an orientation of the bulb fitting vertically or obliquely to the lighting direction is disadvantageous because the bulb has to be inserted into the bulb fitting and ideally positioned relative to the reflector, which is difficult to insert due to tight space conditions ; and since the reflector would interfere with the insertion of the lamp in the optimum position, the bulb fitting would not be ideally positioned relative to the reflector.

According to the built-in lamps known from the prior art, this can be remedied by, for example, a bulb fitting and a part of the bulb protruding laterally from the reflector and, in many cases, at the A hole is provided on one side into which a light bulb can be inserted, with the side of the light bulb facing away from the fitting for subsequent insertion of the light bulb into an oppositely arranged light bulb fitting. As far as this embodiment is concerned, it is generally disadvantageous to have to provide a hole in the reflector, both in relation to cost and efficiency, and to reduce the efficiency of the reflector. in the opposite direction of the ideal lighting direction.

Contents of the invention

The object of the present invention is to further develop the built-in lamp of the type referred to at the outset in a simple manner so that even at low installation depths it is possible without difficulty if the longitudinal axis of the lamp fitting extends obliquely or perpendicularly to the direction of illumination. The bulb can be changed comfortably on the hood; at the same time, an optimal positioning of the bulb fitting relative to the reflector can be achieved.

According to the invention, this object is achieved by a reflector comprising at least one first reflector area which, in the direction of illumination, is followed by a second reflector area which can be accessed from The first reflector area is removed, allowing bulb replacement.

According to the invention, the reflector can be divided into at least one first reflector area and one second reflector area, and the second reflector area arranged in the direction of illumination can be detached from the first reflector area, so that the light bulb fitting and the light bulb Arranged in front of the first reflector area. Thus, at least part of the second reflector area may be arranged in front of the bulb, so that the bulb is located between the first reflector area and the second reflector area, so to speak. Since the second reflector area can be removed from the first reflector area, a person can freely approach and grasp the bulb held in the bulb fitting without being hindered by the second reflector area, and the bulb can be removed from the Bulb fitting removed. Since the second reflector region can be removed, it is likewise possible to insert the light bulb into the bulb fitting without difficulty and without being hindered by the second reflector region.

Finally, according to the invention, in the case of built-in lamps known from the prior art, the reflector area which was once an obstacle to changing the bulb can be simply removed from the built-in lamp or from the remaining reflector area for Replacement, this provides enough room to insert the lamp into or remove the lamp from the bulb fitting. According to the invention, this procedure can be carried out without problems, for example without damaging or soiling the reflector region, since a considerable working space or access space is available for changing the bulb after removal of the second reflector region.

The design of the built-in lamp according to the invention also allows an optimal relative position between the bulb and all reflector areas.

Preferably, the second reflector area is pivotable away from the first reflector area, or can be completely detached from the first reflector area. When the second reflector area is only pivoted away from the first reflector area, it is advantageous that the second reflector area does not have to be handled as a separate part when the bulb is replaced, since the second reflector The zone is hinged to the built-in light so it always stays on the built-in light. In contrast, since the second reflector area is completely separated from the built-in light, this can advantageously be achieved at lower economic costs.

The light bulb fitting and the first reflector area can preferably be arranged in a housing, on which the second reflector area is articulated and/or can be connected by means of removable screw connections, magnet connections, clip connections , pin connection or bayonet connection to fasten it to the housing.

As regards the casing, it is advantageous to make it opaque, for example, since in this case, for suspended ceilings, the inaccuracies in the finishing cannot be illuminated, if not intentionally, from behind place. It is also possible to make the housing dust-tight, in order to prevent contamination of the bulb and reflector, for example by the air-conditioning system.

The second reflector area may have a reflector opening which is arranged in the lighting direction and which, in a possible embodiment, is terminated by a translucent or transparent plate in an at least substantially dust-tight manner. ). In this way, frequent cleaning of the reflector areas and bulbs can be avoided, since the plates form a reliable protection against dust. In particular, if the reflector opening is not only terminated with a plate, but also if the entire housing is formed in an at least substantially dust-tight manner by a second reflector region removably fastened to the housing and/or by a fixed connection to it If the components are terminated, then good protection against dust can be achieved. In this case, dust can be reliably prevented from entering any housing area or reflector area.

The first and second reflector regions may be at least partially connected to each other. In this case, the two reflector regions can together assume the shape of a uniform reflector which is closed on its side opposite the reflector opening. In this example, the closed side of the reflector is formed by a first reflector region, which in particular is non-removably connected to the housing. When the first and second reflector regions are not only partially but at least almost completely connected to each other, it is advantageous if one of the two reflector regions has an opening towards the other reflector region and the bulb can Via this part, it protrudes laterally into the interior of the reflector. This portion simultaneously allows the removal of the second reflector area from the first reflector area without the light bulb interfering with this removal.

It is particularly preferred to form the first reflector region as an auxiliary reflector and the second reflector region as a direct light reflector. In this example, a light passing area can be formed between the auxiliary reflector and the direct light reflector, through which a part of the light can pass, and this part of the light is finally used to generate diffuse illumination. In contrast, a portion of the light that strikes the direct light reflector directly and immediately is used to produce direct illumination. The reflector openings of the direct light reflectors arranged in the illumination direction can delimit a direct light exit area which is at least partially surrounded by a diffuse light exit area. Preferably, a part of the light acting on the diffuse light exit area first passes through the light passing area formed between the auxiliary reflector and the direct light reflector.

In addition to the direct light exit area, a diffuse light exit area is also provided, thus making it possible to work in the direct light exit area according to the dark-light principle, which avoids glare effects, while the diffuse light The exit area also ensures non-glare scattered light from the diffuse light exit area according to the invention around the direct light exit area, thus always ensuring a visible marking of the light source, which enables the The lighting environment in the room feels soft.

The common light bulb, which can be installed in the light bulb fitting, can act on both the direct light exit area and the diffuse light exit area. In this case, it is not necessary to provide a separate bulb for the diffuse light exit area of the invention.

The specific shape of the auxiliary reflector can ensure that the part of the reflected light that hits the direct light exit area and the diffuse light exit area is separated in a pre-adjustable manner. The distribution of the part of the light that falls on the direct light exit area and the diffuse light exit area can thus be selected in a desired manner by the shape of the auxiliary reflector.

A particularly good diffused light illumination can result if the bulb which can be inserted into the bulb fitting acts only indirectly on the diffused light exit area via the auxiliary reflector.

The auxiliary reflector may be formed by at least one planar reflector surface extending parallel to the plane of the mounting surface. In addition, it is also possible in particular for the reflector surface to be curved or twisted rotationally symmetrically. The reflector surface can be made specular reflection or diffuse reflection. It is particularly advantageous if at least partial regions of the inner surface of the housing carrying the light bulb fitting are formed as auxiliary reflectors. When using such a cover which is open in the direction of illumination, the base of the cover can be formed in particular as a reflector surface which forms at least one region of the auxiliary reflector. The sidewalls of such enclosures can also be made specularly or diffusely reflective, so that these sidewalls can serve as secondary reflectors for other areas. When the base of the enclosure or the side walls of the enclosure form the auxiliary reflector, it is advantageous that no additional components are required to realize the auxiliary reflector. All that is necessary is to equip the inner side of the housing with the respective required reflective properties.

It is particularly advantageous if the housing carrying the light bulb fitting is substantially parallelepiped-shaped and the light bulb mountable in the light bulb fitting is elongated, the longitudinal axis of the light bulb fitting running along the parallelepiped-shaped housing in a plane extending parallel to the mounting surface. Diagonal extension of . Since the length of this diagonal is greater than the length of the sides of the housing, the arrangement provides a considerable space for inserting and removing the bulb, by means of which space the procedure can be carried out more simply.

Further preferred embodiments of the invention are described in the dependent claims.

Description of drawings

The present invention will be described below in conjunction with each embodiment and each accompanying drawing, wherein:

Figure 1 is a schematic cross-sectional view of a built-in lamp according to the present invention;

2 is a schematic cross-sectional view of a built-in lamp according to another embodiment of the present invention;

Fig. 3 is a plan view of a built-in lamp according to a third embodiment of the present invention.

Detailed ways

Fig. 1 is a schematic cross-sectional view of a built-in lamp according to the invention.

The shown built-in lamp has an approximately parallelepiped housing 10 which is open in the direction of illumination and has a peripheral frame 9 on its open side. The side of the frame 9 facing away from the lighting direction contacts a mounting surface 11 , which is formed, for example, by the underside of a suspended ceiling element 12 .

The direct light reflector 4 is connected to the inner side of the housing 10 , and the reflector has a circular first opening in the illumination direction, which coincides with the direct light exit area 1 . The direct light reflector 4 forms the second reflector region described above in the Summary of the Invention section. At the end far away from the direct light exit area 1, the direct light reflector 4 has another opening that is similarly approximately circular, and this opening is facing the base of the outer cover 10, and some of the light emitted by the bulb 6 can pass through this opening along with The direction opposite to the illumination direction, ie, the direction towards the base of the housing 10 , is emitted from the direct light reflector 4 . The shape of the direct light reflector 4 tapers along the direction of the base of the housing 10 , and in a possible embodiment, it has a cutout 14 at its end away from the direct light exit area 1 to provide space for the accessories of the bulb 6 .

The base of the housing 10 forms a region of the auxiliary reflector 7 . The other individual regions of the auxiliary reflector 7 are formed by the individual side walls of the housing 10 . The auxiliary reflector 7 forms the first reflector region described above in the Summary of the Invention section.

In a possible embodiment, the open side of the enclosure 10, ie the side facing the area to be irradiated, is terminated with a plate 13, wherein different areas of the plate 13 have different optical properties. In the area 1 where the direct light exits, the plate is made completely transparent, so that the light emitted by the bulb 6 can pass through this area unhindered. In contrast, in the diffuse light exit area 2, the plate 13 is made as a diffuser plate which disperses the light incident on it from the inside of the housing, thereby producing diffuse light. The diffuser plate area extends up to the outer edge of the frame 9 so that the frame 9 is covered by the diffused light area of the plate 13 .

In another lower-cost variant, it is also possible to design the plate 13 as an annular element with a plurality of holes, in particular a perforated metal plate, in which case the direct light exit area is preferably not terminated by a plate, Instead, make it open.

In FIG. 1, three rays of light from a bulb 6 are illustrated, all of which are directly incident from the bulb 6 on the transparent area of the plate 13, through which they pass unhindered because the plate 13 is transparent. In FIG. 1, another light ray, also for example only, is incident from the light source 6 on the inner specular reflection side of the direct light reflector 4, from where it is subsequently deflected and passes through the transparent area of the plate 13. . In FIG. 2 , it is only again illustrated that an additional ray of light from the light source 6 is incident at an acute angle on the auxiliary reflector 7 , from which this ray is likewise deflected and passes through the transparent area of the plate 13 .

In the case of the built-in light according to the invention, light of the type described, ie light passing through the transparent area of the plate 13 and passing through the direct light exit area 1, provides the required interior lighting.

However, some of the light emitted by the bulb 6 also enters the light passage area formed between the direct light reflector 4 and the base of the housing 10 , so this light can also enter the diffuse light exit area 2 after one or more reflections. FIG. 1 also shows an example of a light that enters the diffuse light exit area 2 after multiple reflections. This ray of light originates from the bulb 6 and is incident on the base of the housing 10 at a relatively acute angle, from where it is reflected onto the side walls of the housing 10 . Multiple reflections then take place between said side walls of the housing 10 and the outer specularly reflecting side of the direct light reflector 4 until this ray finally impinges on the area of the plate 13 which is made as a diffuser plate. This diffuser area ensures that the light is converted into diffuse light which exits the diffuse light exit area 2 and marks the direct light exit area 1 in the manner already explained, thus creating the described soft light environment in the interior . Therefore, the same applies to the two rays as shown in Figure 1, which after being reflected at the base of the housing or after being reflected at the base of the housing and simply reflected at the side walls of the housing only move to the diffuse light exit area 2.

The plate 13 can be removed from the housing 10 or the frame 9 together with the direct light reflector 4 fastened to it. For this purpose, the edge region of the plate 13 can have, for example, magnetic elements which cooperate with the frame 9 , for example ferromagnetic. The plate 13 can then be removed from the frame 9 simply by removing the former, overcoming the magnetic force acting between said magnetic element and the frame 9 . In addition, the plate 13 can be held pivotably at the frame 9, in particular the plate 13 can be fastened or locked by means of a clip connection.

The direct light reflector 4 fixedly connected to the plate 13 can also be moved out of the housing 10 by detaching the plate 13 from the frame 9 or pivoting the plate 13 away from the frame 9 . The bulb 6 , which is now no longer between the auxiliary reflector 7 and the direct light reflector 4 , is then freely accessible and can therefore be replaced without difficulty. After replacement, the plate 13 is again moved or pivoted together with the direct light reflector 4 towards the housing 10 and the plate 13 is magnetically connected or locked to the housing 10 .

Fig. 2 is a schematic cross-sectional view of a built-in lamp according to another embodiment of the present invention.

The built-in lamp shown in Fig. 2 also has approximately the outer cover 10 ' of cylinder, and outer cover 10 ' is open on the illumination direction, and it has peripheral frame 9 ', and light can't see through the open side of frame 9 '. The frame 9' in turn contacts the mounting surface 11' formed by the underside of the depending ceiling element 12'.

The base of the housing 10' remote from the housing opening is formed as a first reflector region 15 which in particular has specular reflection properties. Furthermore, a second reflector area 16 is provided on the inner side of the housing 10', similar to the direct light reflector area 4 shown in FIG. In this case, the opening 17 facing the first reflector region is smaller than the opening 18 arranged in the illumination direction. The shape of the second reflector area 16 thus tapers in the direction of the base of the housing 10 . At its edge facing the first reflector area 15, the second reflector area has a break 14' in order to provide space for the light bulb 6' or its accessories, so that the light bulb accessories or the light bulb 6' are arranged on both sides. between reflector areas 15,16.

The opening 17 of the second reflector region 16 facing the first reflector region 15 is arranged spaced apart from the first reflector region 15 shown in FIG. 2 . Furthermore, it is also possible to extend the second reflector region 16 upwards to the first reflector region 15 in order to achieve a direct connection of the two reflector regions 15 , 16 . The second reflector region 16 extending in this way is indicated by dashed lines in FIG. 2 .

In a possible embodiment, the second reflector area 16 is terminated in a dust-tight manner with a plate 13' which is located in the area of the opening 18 of the frame 9' arranged in the lighting direction and is fixedly connected to the frame 9' on the edge area. In this way, the frame 9' together with the plate 13' closes the entire inner space of the housing 10'. In addition, the opening 18 of the second reflector region 16 arranged in the illumination direction can also be made open.

The light-tight frame 9' has the effect that light can only emerge from the housing 10' through the opening 18.

In order to replace the bulb 6', the frame 9', together with the plate 13' fixed to it, can be removed from the housing 10' together with the second reflector area 16, so that the bulb 6' can be freely accessed, with the resulting The benefits are already explained in Figure 1.

Fig. 3 is a plan view of a built-in lamp according to the invention with a direct light exit area 1' and a diffuse light exit area 2' surrounding it (similar to Fig. 1). The outer edge of the direct light emission area 1' is bounded by the ring line 19, and the ring line 19 represents the inner boundary of the diffuse light emission area 2' simultaneously.

The direct light exit region 1' extends in the plane of the drawing, ie in the same plane as the opening of the direct light reflector, which is arranged in the illumination direction and also extends along the ring line 19. The direct light reflector extends into the plane of the drawing and reaches a rear reflector opening which is arranged in the opposite direction to the illumination direction and is not shown in FIG. 3 .

The bulb 6" is arranged inside the direct light reflector, and is designed as a compact elongated fluorescent lamp. In addition, the bulb 6" can also be arranged behind or above the direct light reflector.

An auxiliary reflector 7' is provided behind the direct light reflector, the direct light reflector extending into the plane of the drawing, and the auxiliary reflector 7' extending along a plane parallel to the plane of the drawing. The relative arrangement of the direct light reflector, bulb 6 and auxiliary reflector 7' is similar to that shown in Fig. 1 .

The inner side of the diffused light emission area 2' is bounded by the ring line 19, and its outer side is bounded by the square line 20, which in turn forms the inner boundary of the frame 9" of the shown built-in lamp. The frame 9" is far away from the direction of illumination. The side touches the installation surface (not shown), in particular the ceiling of the room, so that it, together with the built-in light held in the frame 9" covers the opening that appears on the installation surface, which is intended to accommodate the parallelepiped of the built-in light shaped cover.

The difference in material between the built-in lamp shown in Figure 3 and the built-in lamp shown in Figure 1 includes the fact that the bulb fitting holding the bulb 6" shown in Figure 3 is arranged in the housing so that the bulb 6" inserted into the bulb fitting ” extending diagonally along the enclosure. According to the display of Fig. 3, it is illustrated that an optimal and central position of the bulb 6" can thus be achieved in the area of the reflector. Furthermore, after the frame 9" has been removed from the housing together with the direct light reflector, there is a very large 6” of room for replacement bulbs, so the bulb 6” can be comfortably removed from the bulb fitting, or inserted into the bulb fitting.

Claims (15)

1, a kind of Built-in light comprises carriage, bulb accessory and reflector, and wherein this carriage can be fixed on and install on the surface (11,11 '), particularly on the room ceiling, it is characterized in that:

This reflector comprises at least one first reflector region (7,7 ', 15), on illumination direction, this back, zone is second reflector region (4,16), this second reflector region can be removed from first reflector region (7,7 '), thereby allows more to change the bulb.

2, Built-in light as claimed in claim 1 is characterized in that, second reflector region (4,16) can be rotated away from first reflector region (7,7 ', 15) by pivot, perhaps removes fully from first reflector region (7,7 ', 15).

3, as each described Built-in light in the above-mentioned claim, it is characterized in that, this bulb accessory and first reflector region (7,7 ', 15) are arranged at outer cover (10,10 ') in, particularly, this outer cover is lighttight and/or dustproof, and second reflector region (4,16) be hinged and be supported on this outer cover, perhaps can secure it on this outer cover by means of detachable screw connector, magnet connector, clip connector, latch connector or bayonet socket connector.

4, as each described Built-in light in the above-mentioned claim, it is characterized in that, second reflector region (4,16) has reflector opening (18), this opening is set on the illumination direction, and be made into uncoveredly, perhaps this opening adopts at least basically the dustproof mode by translucent or transparent plate (13,13 ') terminating.

5, as each described Built-in light in claim 3 or 4, it is characterized in that, outer cover (10,10 ') adopts dustproof mode at least basically by removably being fastened to second reflector region (4,16) on it and/or being fixedly connected to element (9 ') terminating on it.

6, as any described Built-in light in the above-mentioned claim, it is characterized in that first and second reflector regions (15,16) interconnect at least in part.

7, as any described Built-in light in the above-mentioned claim, it is characterized in that first reflector region (7,7 ') is made into auxiliary reflector, second reflector region (4) is made into the direct light reflector.

8, Built-in light as claimed in claim 7 is characterized in that, forms light by the zone between auxiliary reflector (7,7 ') and direct light reflector (4).

9, as each described Built-in light in claim 7 or 8, it is characterized in that the reflector opening (18) that is set at the direct light reflector (4) on the illumination direction limits direct light and penetrates zone (1,1 '), this zone is penetrated zone (2,2 ') to small part by diffused light and is surrounded.

10, Built-in light as claimed in claim 9 is characterized in that, direct light penetrates zone (1,1 ') and diffused light and penetrates the effect that regional (2,2 ') can be subjected to being installed in shared bulb in the bulb accessory (6,6 ").

As each described Built-in light in claim 9 or 10, it is characterized in that 11, diffused light penetrates zone (2,2 ') can only be subjected to being installed in bulb in the bulb accessory (6,6 ") indirectly by auxiliary reflector (7,7 ') effect.

12, as each described Built-in light in the claim 7 to 11, it is characterized in that, auxiliary reflector (7,7 ') formed by at least one plane or predetermined curved surface or crooked reflector surface to small part, this surface is guaranteed to shine direct light and is penetrated that part of reverberation that zone (1) and diffused light penetrate on regional (2) and separate according to predetermined way.

As each described Built-in light in the above-mentioned claim, it is characterized in that 13, according to the inner surface of the outer cover (10,11 ') of claim 3, it is made into auxiliary reflector (7,7 ') in the subregion at least.

14, as each described Built-in light in the above-mentioned claim, it is characterized in that, second reflector region (4,16) on the fringe region of first reflector region (7,7 ', 15), otch (14 is arranged, 14 '), this otch can pass through for being installed in bulb in the bulb accessory (6,6 ', 6 ").

15, as each described Built-in light in the above-mentioned claim, it is characterized in that, outer cover (10 according to claim 3,10 ') be substantially parallelepiped-shaped, can be installed in lamp in the bulb accessory (6 ") and be elongated shape, the longitudinal axis of this bulb accessory extends being parallel to the diagonal that upper edge, the plane parallelepiped-shaped outer cover (10,10 ') that extends on surface (11; 11 ') is installed.

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