EP2539628B1 - Frameless downlight - Google Patents

Description

The invention relates to a downlight with a light source for generating a downwardly from the downlight light, a mounting ring for mounting the downlight on a ceiling element and a reflector for reflecting the light generated by the light source, the reflector held by a holding device on the mounting ring is.

By "downlight" is meant a luminaire which is intended for attachment to a ceiling and which is designed for a downward light emission. In particular, it may be a ceiling light, which is intended to be installed in a circular opening of a suspended ceiling element.

In such a downlight is known to fix the reflector to the mounting ring using a bayonet connection. To release this connection, it is provided that the reflector is pressed on an outwardly projecting flange upwards and then the bayonet connection is released with further application of pressure. Therefore, it is necessary that the reflector has a correspondingly large and stable designed flange as an attack surface. Accordingly, the flange appears as an annular structure when viewed from below the downlight. As a result, the design options of the downlight with respect to the external appearance are limited.

From the EP 1 043 542 A2 is a recessed luminaire with a base part and a reflector known. The base part is held by means of a support device at the edge of an installation opening. With its inner edges, the base part carries the reflector.

From the DE 40 16 531 A1 a light emitter is known with a lamp insert, which is held by a frame. A reflector part of the light emitter is supported while on the lamp insert from. From the EP 0 551 610 A1 is known a recessed spotlight whose reflector is similarly supported.

The invention has for its object to provide a downlight, which offers improved design options with respect to the external appearance.

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

According to the invention, a downlight is provided which has a light source for generating a light to be emitted downwardly from the downlight, and a mounting ring for supporting the downlight on a ceiling element and a reflector for reflecting the light generated by the light source, wherein the reflector by a holding device is held on the mounting ring. The holding device is designed such that the reflector is held only by resting on the mounting ring.

With this holding device it is possible that the reflector only has to be raised for release, but not pressed. The fact that no pressure on the reflector must be exercised, can be dispensed with a correspondingly wide flange, as is known from the prior art. For example, the reflector can be raised by being supported directly on an inwardly directed reflection surface without there being any significant risk of damage to this surface. Thus, the design options of the downlight are improved with respect to the external appearance.

According to the invention, the mounting ring on a support unit and the reflector is a support unit, wherein the support unit and the support unit are parts of the holding device and the reflector is held by resting the support unit on the support unit on the mounting ring. This allows a particularly simple design of the holding device.

According to the invention, the mounting ring on an insertion, which allows insertion of the support unit from below. As a result, a particularly simple mounting or mounting of the reflector on the mounting ring allow; in particular after a fixing of the mounting ring on the ceiling element.

Preferably, the support unit has a support surface for at least a portion of the support unit, wherein the holding device is designed such that the reflector can be held in several different positions relative to the mounting ring. This makes it possible to easily position the reflector in different positions relative to the mounting ring.

Preferably, the support surface has a low pitch, preferably less than 3 °. In this way, a simple height adjustment of the reflector relative to the mounting ring is given. It can therefore be compensated, for example, after installation of the downlight in the ceiling element manufacturing or installation-related inaccuracies with respect to an adjacent ceiling structure.

Preferably, the support unit at two end regions of the support surface each have an upwardly facing boundary structure. In this way, the risk of accidental release of the reflector by leaving the support surface is significantly reduced.

The support unit preferably has a plurality, for example three, support pins. This allows a secure, defined support of the reflector on the mounting ring.

Preferably, the support unit has a plurality, for example three, support elements, wherein each of the support elements is in each case designed to support one of the support pins.

Fig. 1

eine perspektivische Ansicht des Ausführungsbeispiels eines erfindungsgemäßen Downlights von schräg oben,

Fig. 2

eine perspektivische Schnittdarstellung des Downlights,

Fig. 3

den Einbauring des Downlights in separierter Form,

Fig. 4

den Reflektor des Downlights in separierter Form und

Fig. 5

eine perspektivische Ansicht von Reflektor und Einbauring ohne weitere Bauteile des Downlights.

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

Fig. 1

a perspective view of the embodiment of a downlight according to the invention obliquely from above,

Fig. 2

a perspective sectional view of the downlight,

Fig. 3

the mounting ring of the downlight in separated form,

Fig. 4

the reflector of the downlight in separated form and

Fig. 5

a perspective view of reflector and mounting ring without other components of the downlight.

Fig. 1 shows a perspective view of an embodiment of a downlight according to the invention obliquely from above, Fig. 2 a perspective sectional view of this downlight.

The downlight has a light source 2, which serves to generate a light to be emitted from the downlight down. The light source 2 may comprise an LED (light-emitting diode), for example formed from a plurality of LEDs.

The downlight is intended to be attached to a (not shown in the figures) ceiling element. For this purpose, the downlight has a mounting ring 4 or "mounting ring", which serves for holding or fixing the downlight on the ceiling element. In particular, the mounting ring 4 may have an outwardly facing structure 42 which is intended to be brought into abutment against a circular opening of the ceiling element from the inside. Furthermore, the mounting ring 4 may have a flange 41, which is intended to be connected from below, for example by a screw connection with the ceiling element. It can also be provided that the flange 41 is intended to be connected from above with an edge region of the circular opening, for example by a screw connection. The mounting ring 4 may for this purpose in particular have openings 43, which are provided for receiving corresponding connection means, so beispielsciese screws.

Furthermore, the downlight has a reflector 6 for reflecting the light generated by the light source 2. By "reflector" is thus a component of the downlight referred to, which serves - at least primarily - for the reflection of the light emitted from the light source or is formed.

The reflector 6 is held by a holding device, which is shown in more detail below, on the mounting ring 4. In Fig. 3 is the mounting ring 4 in separated form shown in Fig. 4 the reflector 6 and in Fig. 5 a perspective view of reflector 6 and mounting ring 4 without further components of the downlight.

The holding device is designed such that the reflector 6 is held only by resting on the mounting ring 4. In particular, therefore, no clamping or locking element is provided which would fix or hold the reflector 6 in the intended for the operation position relative to the mounting ring 4 or any other component of the downlight by jamming or latching. In this sense, the reflector 6 depends only on the mounting ring. 4

The reflector 4 is thus held in its intended for the operation of the downlight position exclusively characterized in that it rests on the mounting ring 4. In this way it is possible that the reflector 6 can be separated from the mounting ring 4, without pressure on the reflector 6 is applied.

In the embodiment shown, the reflector 6, an example in Fig. 4 designated, inwardly facing reflection surface 62, which is formed for reflection of the light originating from the light source 2 and an outwardly facing outer surface 63 on. The reflector 6 can be lifted to release the rest of the downlight by direct support on the reflective surface 62 from below, without causing any significant risk of damage to the reflector 6. In particular, therefore, the reflector 6 can be formed without a wide flange, as provided in the prior art for handling the release operation.

Accordingly, in the exemplary embodiment shown, the reflector 6 has only a minimally formed flange 61, which, for example, is made of Fig. 2 shows - only serves to form a clean appearing edge termination of the reflector 6. As an attack element for handling the reflector 6 during the release process, this flange 61 is unsuitable due to its minimal size.

The downlight can therefore be designed almost "frameless", which improves the design possibilities of the external appearance. example meadow can be provided that the flange 41 of the mounting ring 4 is covered by plaster after installation of the downlight.

The mounting ring 4 may in particular have a support unit 8 and the reflector 6 a support unit 10, wherein the support unit 8 and the support unit 10 form parts of the holding device and the reflector 6 is held by resting the support unit 10 on the support unit 8 on the mounting ring 4.

The support unit 10 may have several, for example, three support pins 101, 102, 103. For each of the support pins 101, 102, 103, a support element 81, 82 may be provided, wherein the support elements 81, 82 represent parts of the support unit 8. In the embodiment shown, three support pins 101, 102, 103 and three corresponding support elements are provided, wherein in Fig. 5 due to the perspective only two support elements 81, 82 can be seen.

Preferably, the support unit 8 has a support surface 85 for at least a portion of the support unit 10. For example, each of the support elements 81, 82 each have a support surface for one of the support pins 101, 102, 103. The support elements 81, 82 and the support pins 101, 102, 103 are preferably formed symmetrically, so that in the following, the holding device is described in more detail only with reference to the support pin 101 and the corresponding support surface 85.

The holding device is advantageously designed in this case such that the reflector 6 can be held in several different positions relative to the mounting ring 4. Like from the Figures 3 and 5 As can be seen, the support surface 85 may be, for example, circular section, so that the reflector 6 relative to the mounting ring 4 can be held in different positions, resulting in a rotation of the reflector 6 about a vertical axis. The support pin 101 can slide on the bearing surface 85 during this rotation of the reflector 6.

As with a closer look at the Fig. 3 becomes clear, it can be provided in particular that the support surface 85 has a low slope; the slope is in particular so small that the reflector 6 in a resting does not slip on the support unit 8, but due to its friction maintains its position relative to the mounting ring 4. Preferably, the slope over the entire support surface 85 of time is uniform or uniformly formed. For example, a pitch of less than 3 ° may be provided. By such a bearing surface 85 can be achieved that the reflector 6 can be made by appropriate rotation about the vertical axis slightly different heights relative to the mounting ring 4. As a result, for example, after installation of the downlight manufacturing or installation deviations from setpoints can be compensated.

How out Fig. 3 shows, the support unit 8 preferably at two end portions of the support surface 85 each have an upwardly facing limiting structure 851, 852 on. As a result, it is possible to prevent the reflector 6 from slipping down from the support surface 85 and thus being unintentionally separated from the mounting ring 4. Accordingly, the limiting structures 851, 852 are preferably designed such that they serve as stops for the support pin 101 during a sliding movement of the support pin 101 on the support surface 85.

Further advantageously, the mounting ring 4 an insertion groove 45, which allows insertion of the support unit 10 and the support pin 101. Analogously, in each case a correspondingly formed insertion groove can be provided for each of the support pins 101, 102, 103.

The insertion groove 45 can in particular directly to one of the two boundary structures - in Fig. 3 the delimiting structure 851 - be provided adjacent, this limiting structure 851 is limited in its height so that the reflector 6 with the support unit 10 and with its support pin 101 from below through the insertion groove 45, then lift over the limiting structure 851 and finally can be put on the support surface 85. The corresponding other limiting structure 852 can - as in Fig. 3 sketched - be higher, in particular so high that the reflector 6 can not be lifted above it.

Claims (6)

1. A downlight having:

   - a light source (2) for generating a light to be emitted downwards by the downlight;

   - a mounting ring (4) for retaining the downlight on a ceiling element;

   - a reflector (6) for reflecting the light generated by the light source (2),
   wherein the reflector (6) is retained on the mounting ring (4) by a retaining device,
   wherein the retaining device is constructed in such a way that the reflector (6) is retained merely by resting on the mounting ring (4),
   wherein the mounting ring (4) has a bearing unit (8), and the reflector (6) has a supporting unit (10), and wherein the bearing unit (8) and the supporting unit (10) are parts of the retaining device, and the reflector (6) is retained on the mounting ring (4) as a result of the fact that the supporting unit (10) rests on the bearing unit (8),
   characterised in that
   the mounting ring (4) has an introducing groove (45) which permits introduction of the supporting unit (10) from below.
2. A downlight according to claim 1,
   in which the bearing unit (8) has a bearing surface (85) for at least a portion of the supporting unit (10), and the retaining device is designed in such a way that the reflector (6) can be retained in a plurality of different positions relative to the mounting ring (4).
3. A downlight according to claim 2,
   in which the bearing surface (85) has a slight inclination, preferably of less than 3°.
4. A downlight according to claim 2 or 3,
   in which at two end regions of the bearing surface (85) the bearing unit (8) has an upwardly pointing limiting structure (851, 852) in each case.
5. A downlight according to one of claims 1 to 4,
   in which the supporting unit (10) has a plurality of, for example three, supporting lugs (101, 102, 103).
6. A downlight according to claim 5,
   in which the bearing unit (8) has a plurality of, for example three, bearing elements (81, 82), wherein each of the bearing elements (81, 82) is constructed for supporting one of the supporting lugs (101, 102, 103) in each case.

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