EP3132187A1

EP3132187A1 - Lighting module having annular circuit board

Info

Publication number: EP3132187A1
Application number: EP15712863.8A
Authority: EP
Inventors: Fabian Reingruber; Rainer Hosp; Enzo PERES; Adrian Scholl
Original assignee: Osram GmbH
Current assignee: Osram GmbH
Priority date: 2014-03-28
Filing date: 2015-03-23
Publication date: 2017-02-22
Anticipated expiration: 2035-03-23
Also published as: DE102014205891A1; EP3132187B1; WO2015144645A1

Abstract

The lighting module (1) comprises an annular circuit board (2) on which a plurality of semiconductor light sources (8a, 8b) and electronic components (9, 10) are arranged, the semiconductor light sources (8a, 8b) being arranged on an outer portion (11) of the circuit board (2) and the electronic components (9, 10) being arranged on an inner portion (12) of the circuit board (2). A luminaire (L2) comprises at least one lighting module (1).

Description

description

The invention relates to a lighting module, comprising an annular printed circuit board on which a plurality

Semiconductor light sources and electronic components

are arranged. The invention also relates to a luminaire with such a lighting module. The invention is particularly applicable to LED lighting modules.

The company Siteco sells under the trade name "Lunis R® LED" a light module of the kind in question. However, this light module is expensive to manufacture.

Another light emitting module having an annular circuit board on which a plurality of semiconductor light sources and

Electronic components are marketed by the company Osram under the trade name "PrevaLED" Here are the semiconductor light sources in a central area

arranged and annularly surrounded by the electronic components.

It is the object of the present invention to overcome the disadvantages of the prior art at least partially and in particular a particularly easy to produce and

To provide long-life light module of the type with a large light emitting surface. This object is achieved according to the characteristics of the independent

Claims solved. Preferred embodiments are

in particular the dependent claims.

The object is achieved by a lighting module, comprising an annular printed circuit board on which several

Semiconductor light sources and electronic components

are arranged, wherein the semiconductor light sources at an outer portion of the circuit board and the electronic Components are arranged on an inner portion of the circuit board.

The arrangement of the semiconductor light sources on the outer partial area makes it possible to provide a large-area radiation area. In addition, such an arrangement density of the semiconductor light sources can be reduced, which leads to a lower thermal load of the semiconductor light sources. This in turn allows for improved longevity. The

Arrangement can be explained by the spatial separation of

In addition, semiconductor light sources and electronic components in the inner and outer sub-area particularly easy to manufacture. The light module can, in particular because it is electronic

"Exterior" or "inside" (and shapes formed therefrom such as "outer area", "outboard", etc.) as positional information in the context of this application relate in particular to a centroid of the area Light module and / or the

Circuit board, which preferably has a substantially smaller extent in a spatial direction than in two spatial directions perpendicular thereto (so-called planar configuration), i. Outer or outer points or regions are farther from the centroid than inner or inner points or regions.

The fact that the printed circuit board is annular may in particular include that the printed circuit board has a central recess which at least for the most part (eg at least 80% of the circumference, in particular at least 90% of the circumference, in particular 95% of the circumference) of the printed circuit board is surrounded. The recess may in particular for performing at least one electrical supply line or a

Power supply, e.g. a mains supply, e.g. in a wall mounting. This development has the advantage that the semiconductor light sources, the electronic

Components and the electrical leads essentially can lie in one plane, which makes it possible to provide very flat luminaires. It must be the

Centroid of the central recess does not necessarily coincide with the centroid of the conductor bar, i. it is sufficient if this is virtually enclosed by a ring of electronic components and semiconductor light sources. The size of the recess is measured according to their function and the requirements of the light module and the circumstances in the production of the same, in particular from the point of view of a simple and / or

material-saving production.

The circuit board may be a circulating around the recess

be closed circuit board. This allows a simple production and a mechanically stable design. But she also likes a continuous slot or similar. which facilitates their deformability.

The circuit board is in particular at least substantially annular or has a ring-like basic shape to the effect that locally limited projections or recesses may occur at their edges.

The ring shape may be circular, but is not limited thereto. Thus, in plan view, it likes an oval, angular (for example, rectangular, hexagonal or even different

polygonzugartig), freeform etc. have inner and / or outer edge. The basic shape of the inner and outer margins may be the same or different.

That the electronic components on the inner

Part of the circuit board are arranged like

in particular, that all electronic components are arranged on the inner portion of the circuit board. Alternatively, all electronic components may be arranged on at least one ohmic resistance and / or at least one diode on the inner portion of the circuit board. In particular, the electronic components can be distributed with approximately the same density over the inner partial region, ie in particular the number of components on a given surface is approximately the same for the majority of the partial surfaces, in particular for all partial surfaces of the inner partial region. A partial surface can do this

in particular correspond to a surface which corresponds to a quarter preferably one-eighth, more preferably one-tenth of the area of the inner portion. However, the partial area can also correspond to an area which is 20 times, preferably 10 times the area of an electronic

Component, in particular of the largest electronic

Component or the smallest electronic component or an average sized electronic component corresponds. As a result, on the one hand the thermal load is distributed by the electronic components over a larger area. On the other hand, but also the way from the electronic components to the individual

Semiconductor sources over a concentrated

Arrangement of the electronic components can be shortened.

The semiconductor light sources may be or have light-emitting diodes. If several LEDs are present, they can be lit in the same color or in different colors. A color may be monochrome (e.g., red, green, blue, etc.) or multichrome (e.g., white). The light emitted by the at least one light-emitting diode can also be an infrared light (IR LED) or an ultraviolet light (UV LED). Several light emitting diodes can produce a mixed light; e.g. a white mixed light. The at least one light-emitting diode may contain at least one wavelength-converting phosphor

(Conversion LED). The phosphor may alternatively or additionally be arranged away from the light-emitting diode

("Remote Phosphor"). The at least one light-emitting diode can be in the form of at least one individually housed light-emitting diode or in the form of at least one LED chip. Several LED chips can be mounted on a common substrate ("submount"). The at least one light-emitting diode can with at least be equipped with its own and / or common optics for beam guidance, eg at least one Fresnel lens,

Collimator, and so on. Instead of or in addition to inorganic light emitting diodes, e.g. based on InGaN or AlInGaP, organic LEDs (OLEDs, for example polymer OLEDs) can generally also be used. Alternatively, the at least one semiconductor light source may be e.g. have at least one diode laser.

The electronic components may serve a

electrical supply signal in a for operating the

Semiconductor light sources suitable electrical signal

("driver components")

Components can also have other functions

carry out. The electronic components may include capacitors, resistors, coils, switches, potentiometers, electronic switches (such as transistors, etc.) and / or integrated

Semiconductor devices or ICs such as microcontroller, ASICs, FPGAs, etc. include.

The inner portion and / or the outer portion is in particular an annular portion. It may have the same basic shape as the printed circuit board, e.g. a

circular shape.

The circuit board may be a metal core board, which allows a particularly effective heat spreading. But it may also have a base material of FR4 or ceramic, etc. It is a development that the circuit board only on one of its flat sides (hereinafter without limitation of

Generality referred to as "front") with the

Semiconductor light sources is equipped. It is still a development that the circuit board is equipped only at its front with the semiconductor light sources and the electronic components. The other

Flat side (hereinafter without limitation of generality The rear side can then serve as a support surface, eg for attachment to a heat sink, The back side may also be exposed and, due to its large area, can itself serve as a cooling surface for the semiconductor light sources and the

serve electronic components.

It is an embodiment that the semiconductor light sources have a predetermined radial distance from the electronic components. This spatial separation prevents shading of light by the electronic

Components. So does a shadowing of the LEDs

radiated light can be prevented, which emit the LEDs typically at a beam angle of about 120 °. Also, it allows a very simple way a support of a cover between them.

It is still an embodiment that the

Semiconductor light sources are arranged on the circuit board annular with a single or groups in the circumferential direction, in particular in equidistant spacing. This allows a particularly uniform light emission in the circumferential direction. The single arrangement may include that the semiconductor light sources individually already that of the

Light module produce radiated Nutzlicht, e.g. white

Light. The group-wise arrangement may include that each of a plurality of semiconductor light sources are arranged close to each other as a group and at least two of them

Semiconductor light sources light of different colors

radiate. First the mixture of the light of the

Semiconductor light sources of the group yields the useful light.

For example, white light of a first LED of the group may be mixed with red light of a second LED of the group to produce a warm white useful light when mixed. Also, for example, at least one red LED, at least one green LED, and at least one blue LED may be associated with a group. Yet another example is the use of at least one green-and-white glowing LED and at least one amber ("amber"), red or orange luminous LED, for example in the form of the so-called "Brilliant Mix" from the company Osram. It is also an embodiment that a plurality of latching elements are arranged on the circuit board, in particular on its front side. This allows a simple and secure positive attachment of additional components, such as a cover. The locking elements may be used, for example, in a respective hole in the circuit board and be fixed in shape, material and / or non-positively, for example by soldering, gluing, jamming, etc. Die

Locking elements may be made of plastic or metal, e.g. made of aluminium .

The locking elements may have an inner channel which lies along its longitudinal extent. The channel allows a passage of, for example, a fastener, e.g. a screw, through the circuit board, for example, for attaching additional modules to a back of the

PCB. The inner channel may be smooth or e.g. be equipped with a thread. The locking element likes

in particular be tubular or sleeve-shaped. At least one latching area may be present on its outer circumferential surface, e.g. an undercut or a

Locking projection.

It is another embodiment that at least the

Semiconductor light sources and the electronic components of a cover are arched, which is at least partially transparent. The cover allows, inter alia, protection against mechanical and / or

chemical stress or insect penetration. Furthermore, it serves for electrical contact protection, so that in the attached state predetermined safety distances are maintained at a supply voltage (in particular mains voltage) lying components. In this way, grounded on both sides of the circuit board and / or ungrounded metal parts are attached. The cover is preferably made of an electrically insulating material. At least partially translucent may in this context in particular mean that part of the

Cover is not translucent, while another part is translucent.

Also, the cover can serve the privacy, e.g. to prevent access to the electronic

Components. In addition, the cover for easy attachment of other components, such as

On parts to be used. The translucent

Areas serve in particular for the extraction of light generated by the semiconductor sources.

It is a development that the cover is a one-piece cover. The cover may e.g. out

Plastic exist. When using regions of different composition, e.g. from

translucent and non-translucent and / or transparent and opaque areas, the cover, for example, by a multi-component injection molding

be prepared. However, the cover may also consist entirely of translucent material.

It is a development that the cover is a multi-part cover. This may include that

Cover by attaching at least two

Separate parts is produced on the circuit board, or that the cover before its attachment to the circuit board of at least two previously separately manufactured parts

has been composed, e.g. material, force and / or positive. Of these, at least one part may be translucent and at least one other part opaque. Also, at least one part may be transparent and at least one other part may be opaque. The translucent part may e.g. The semiconductor light sources overhang

opaque part eg the electronic components. In particular, the cover may be formed flat, that is, the height of the cover is in particular less than one fifth, preferably less than one tenth, more preferably less than one twentieth of a main extension of the annular circuit board, in particular the largest

Edge length of a rectangular-ring-shaped printed circuit board or a diameter of a circular printed circuit board. In particular, the height is the distance of the highest point of the cover from the front of the annular

To look at the printed circuit board.

The translucent areas of the cover like

basically transparent or opaque or translucent

be educated. Also basically both

transparent as well as opaque areas be present.

It is yet another embodiment that the cover is locked with the locking elements. Thus, the cover by means of a simple Andrückvorgangs safely on the

PCB are attached. Alternatively, the cover may have latching elements, e.g. Snap hook, which can be brought to attach the cover with an edge of the circuit board in engagement. However, the cover may also be otherwise connected to the circuit board, e.g. by hot caulking, ultrasonic welding, laser welding,

Screw on, turn on, etc.

It is also an embodiment that in the cover and in the circuit board at least one group of mutually aligned holes (possibly also longitudinal holes) is present. This allows an introduction of

Fasteners, e.g. Screw, through the circuit board and the cover through, for example, directly to

Attachment to a wall or ceiling. Thus, a particularly flat design is possible and it can account for parts costs for additional assembly components. Through the holes like but also on the back of the circuit board Mounting adapters are attached to the circuit board, eg for hanging mounting.

In particular, the channel equipped with the locking element may be inserted into the hole in the circuit board.

It is also an embodiment that on the cover at least one mounting area in particular

positive fastening at least one external unit or component (hereinafter without limitation of

Generality as "essay unit" or "additional module"

designated) is present. The cover allows a particularly wide range of possibilities to attach the at least one attachment unit.

It is in particular an embodiment that the cover has an upstanding, in particular annular region, which vaulted the electronic components. This provides a large volume to accommodate the

electronic components, in particular if they are not small in height, e.g. Capacitors. To shade the light emitted by the LEDs

Avoid, the high area may be bevelled outwards. The highest annular region can separate the electronic components from the semiconductor light sources, i. In particular, an at least approximately closed space is provided in which the

electronic components are arranged, but does not contain semiconductor light sources. This allows the

electronic components are shielded from the light of the semiconductor light sources. For this purpose, the upstanding, in particular annular area, which vaulted over the electronic components, preferably formed opaque. It is still an embodiment that on the outside

Side wall of the cover, in particular its upstanding portion, at least one mounting portion is present. This allows, inter alia, an attachment of a Overhead unit with a wide base. The arrangement on the outer side wall allows, for example, a fastening means of a clamping connection, a rotary connection or a locking connection, for example by a plug and / or

Rotary movement or a linear plug-in connection. An attachable unit which can be fastened there may, for example, have one

translucent cover and / or an optical element ("additional optics"), for example a reflector, If the at least one attachment region extends to an upper side of the upstanding region, a simple form-fitting attachment of the inset unit is made possible, for example by means of a plug / For example, in the form of a bayonet closure, a longitudinal slot may attach to the upper side of the raised area, at the end thereof to the outer

Sidewall at least at right angles attaches a transverse slot. Alternatively, the attachment area may be configured for simple linear locking, e.g. in the form of a snap device.

It is also an embodiment that on the inner

Side wall of the cover, in particular its upstanding portion, at least one mounting portion is present. This also allows attachment of a

Essay unit. If the at least one

Attachment area extends to an upper side of the upstanding area, here is a simple

positive attachment of the attachment unit by means of a plug / turn operation allows, for example in the form of a bayonet closure. This may be on the top of the

upstanding portion attach a longitudinal slot at the end of the outer side wall at least at right angles attaches a transverse slot. However, here too a positive fastening of the attachment unit by a simple linear latching movement may be provided, e.g. in form of a

Snap device. In particular, by means of the at least one fastening region provided on the inner side wall, it is possible to attach attachment units in the form of a cover plate or an electrically operated additional module. The electrically operated additional module may for example have at least one sensor, for example comprising a brightness sensor, a motion detector, a smoke detector, etc. This

Additional module may be supplied via the printed circuit board, the electrical connection for the printed circuit board or via a separate electrical connection.

It is a development that at least one additional circuit or function (or corresponding electronic components) on the inner portion of the circuit board

is present, e.g. a radio receiver and / or radio transmitter, a motion detector, a light sensor, etc.

It is still an embodiment that at least one channel is arranged on an inner side wall of the cover. Thus, in particular at least one electrical

Supply line, which runs through the central recess, are easily guided under the cover to the circuit board. The at least one channel enables compliance with safety distances and a particularly easy-to-install connection.

It is yet another embodiment that the cover has at least one beam-forming transmitted-light region. This allows effective beam shaping without

additional optics. A beam-forming area may

For example, be a lens-like area. One

Beamforming region may be associated with a plurality of semiconductor light sources or groups of semiconductor light sources, in particular all semiconductor light sources or groups of semiconductor light sources. A beam-shaping region may also be assigned in each case to a single semiconductor light source or in each case to a single group of semiconductor light sources. It is also an embodiment that at the

Semiconductor light sources and electronic components facing away from the circuit board, a mounting adapter is arranged. This may be configured, for example, for fastening the light module to a wall or a ceiling. He also likes to use the light module as

Suspension lamp be formed. It is also a continuing education that in the cover

Pushbuttons are integrated, in particular above the inner portion. Thus, elements mounted on the printed circuit board can be actuated, for example electrical switching elements (for example an on / off switch, a dimmer) and / or cable clamps. The pushbutton may be formed, for example, as a partially cut-out tab.

The cover may further comprise at least one hole or recess, for example for performing

Controls or to access controls such as

Potentiometers.

At least one strain relief for at least one electrical lead, e. G., May be present on the circuit board and / or on the cover. an electrical cable.

The object is also achieved by a luminaire which has at least one luminous module as described above. In a particularly simple embodiment, the

Luminaire only from the light module with the fitted

PCB and the cover.

It is an additional or alternative development that the luminaire has the luminous module and in addition a diffuser which covers at least the outer partial area provided or equipped with the semiconductor light sources. This allows a particularly homogeneous light emission to reach. The diffuser may be attached to the cover, in particular by means of a plugging movement, a rotary movement or a plug / turn movement. It is a development that the diffuser one

having reflective area and / or connected to a reflector to light for a particularly advantageous

Redirect light emission. The reflector likes with the

Diffuser be locked, e.g. be snapped, e.g. via catch or snap hook. The diffuser and the reflector may be annular. With the attachment of the diffuser, the reflector, for example, over the

Semiconductor light sources of the light module can be placed. By means of the reflector can then that of the

Light sources generated semiconductor light sources are radiated far outward, so that a laterally protruding over the circuit board diffuser is almost homogeneously illuminated.

So that the semiconductor light sources do not protrude too much, the diffuser is preferably of a relatively large size

Distance to these executed.

To prevent the reflector from being visible

Shadow edge, this shadow edge is preferably placed in an edge or step of the diffuser.

It is still a development that the light the

Luminous module and in addition to the inner portion and / or the central recess overlapping or

overhanging cover (hereinafter referred to as cover or cover without restriction to the general public). The cover may eg be circular shaped. The cover may eg be opaque, so that it is possible to prevent an insight on the components of the inner portion and on the central recess and possibly thereby guided electrical leads. The cover may like to consist of an opaque material, such as colored plastic. But the cover also likes be made transparent or opaque, taking under the

Cover a particular round insert plate or

Inserting disc can be inserted. This insert plate may be defined by an end user and possibly also replaced, so that the center of the lamp

For example, in color or materiality (fabric, wallpaper, etc.) can be personalized. Also, a small portion of the light generated by the semiconductor light sources may be directed into the luminaire center, so that it does not remain dark.

The cover can with the diffuser or with the

Cover over e.g. a plug-in mechanism (including a snap), a rotating mechanism or a

Plug / turn mechanism connected. The cover may be designed to mount further elements, e.g. of pointers, e.g. made of light-conducting material.

The surface of the cover may be partially satin, especially at an outer area that covers the diffuser, especially if the cover is made of a transparent material. For example, one lying behind the satined surface

Mounting mechanism (e.g., a latch or

Snap mechanism) are concealed and yet light is passed through the diffuser in the center of the cover.

The surface of the cover may additionally or

Alternatively, be partially painted or partially vaporized so that a portion of the light is passed radially inward.

The diffuser may protrude upwards or forwards such that the diffuser surface has at least one outer annular region of the

Cover disc surmounted in height. To unclean reflections on the particular transparent cover

prevent this can be slightly curved. Diffuser and cover may also be present as a single part, which is partially satinated in its outer region and transparent in the middle or completely opaque. It is also a development that is attached to the back of the circuit board of the mounting adapter,

especially as a wall construction. This allows on the one hand the feeding of a feed line which is laid on the wall, and offers e.g. In addition, the necessary for such lines strain relief. In the wall construction, the wall structure is first fixed for easy installation. Thereafter, e.g. the supply line laid and screwed to the strain relief. Subsequently, the light module to the

Attachment points are connected to the wall structure, rather than bolted directly to the wall.

It is a further development that an annular plate ("back plate") projecting laterally over the printed circuit board is attached to the rear side of the printed circuit board, which may lead to more effective heat dissipation and cooling, in particular if it is made of metal, eg of a metal sheet In addition or alternatively, the

Back plate of a support or connection of a front side, in particular on the cover of the light module, attached additional module or attachment unit serve. In particular, in this case, the back plate may also consist of plastic. This additional module may also laterally over the

Protruding the printed circuit board. This additional module and the

Back plate may be connected to each other at their congruent outer edges.

The rear plate may have a curvature at its outer edge, which advantageously a lateral

Prevents light leakage and the diffuser leads circumferentially during assembly. The curvature may be formed, for example, as a forward-facing embossing in the rear panel. Light reflected at the vault is directed in particular forward on the diffuser and likes a light there produce bright luminous ring of light. By varying the shape, in particular the course, the curvature, the shape of the light ring can be changed, for example in a spiral, a beam pattern, etc.

An ungrounded rear plate of electrically conductive is advantageously recessed around the central recess of the circuit board or has a predetermined

Distance from the recess to maintain safety distances. Basically, the back plate likes a central

Have recess which is smaller than, equal to or larger than the recess of the circuit board. The recesses of the circuit board and the back plate may be arranged concentrically or in alignment with each other.

The luminaire described above enables a large flat luminaire structure based on the light module. Through the light pipe into the center of the luminaire a personalizable field may be illuminated. The small number of parts results in a cost-effective overall concept.

The above-described characteristics, features and advantages of this invention as well as the manner in which they are achieved will become clearer and more clearly understood

In connection with the following schematic description of exemplary embodiments that are associated with the

Drawings are explained in more detail. It can to

Clarity identical or equivalent elements must be provided with the same reference numerals.

Fig.l shows in a view obliquely from above one

equipped annular circuit board of a lighting module according to a first

Embodiment;

2 shows in a view obliquely from above one

differently equipped annular printed circuit board of the lighting module according to the first

Embodiment; 3 shows in a view obliquely from above the

Luminous module according to the first embodiment with the circuit board of Figure 2 with a cover; FIG. 4 shows in a view obliquely from above

Cover of the light module according to the first

Embodiment;

5 shows in a plan view obliquely from above

Cover of the light module according to the first

Embodiment;

6 shows the lighting module according to the first

Embodiment as a sectional view in

Side view;

7 shows a sectional view in a view obliquely from above of a section of the lighting module according to the first embodiment in the region of a

Fastening element;

8 shows a sectional view in a view obliquely from above of a section of the light module according to the first embodiment in the region of a pushbutton of the cover;

9 shows in a view obliquely from above another possible cover of the lighting module according to the first embodiment;

Fig.10 shows in a view obliquely from above yet another possible cover of the lighting module according to the first embodiment;

11 shows a sectional view in a view obliquely from above of the light module according to the first

Embodiment with a rear mounted mounting adapter;

Fig.12 shows the mounting adapter in a view obliquely from above;

Fig. 13 shows in a view obliquely from above

Light module according to a second

Embodiment;

Fig. 14 shows the lighting module according to the second

Embodiment in a view obliquely from below; Fig.15 shows in a view obliquely from above one

Sectional view of a provided with several additional parts lighting module;

Fig.16 shows in a view obliquely from above one

Sectional view of one with another

Additional part provided lighting module;

Fig.17 shows that provided with another attachment

Lighting module from Fig.16 fragmentary in one

View from diagonally below;

Fig.18 shows in a view obliquely from below one

Front cover for the arrangement of FIG.

16 and 17;

Fig.19 shows in a view obliquely from above

Additional part for the front cover of Fig.18;

Fig.20 shows in a view obliquely from below the

front cover of Figure 18 with the attached thereto additional part of Figure 19;

Fig.21 shows in a view obliquely from above the

Lighting module with the additional part of Figures 16 and 17, which is connected to the front cover with the attached thereto additional part;

Fig.22 shows the arrangement of Fig.21 fragmentary as

Sectional view in a view obliquely from above;

Fig. 23 shows in a view obliquely from above one

Cover plate;

Fig.24 shows in a view obliquely from above the

Arrangement of Fig.21 with the cover of Fig.23

Fig. 25 shows the arrangement of Fig. 24 as

Sectional view in a view obliquely from above; and

26 shows a section of the arrangement as a sectional representation in a view obliquely from above

Figure 24. Fig.l shows in a view obliquely from above a populated annular circuit board 2, 2a of a light module 1 (see Figure 3). The circuit board 2, 2a has a closed annular basic shape with a central recess 3 for performing at least one electrical supply line or the like.

(not shown). While an outer side edge 4 is almost exactly circular, in the inner edge 5 a plurality of locally limited recesses 6, 7 are introduced, which are e.g. a fastening and / or alignment or positioning of the printed circuit board 2 serve. The circuit board 2 may be, for example, a metal core board, a ceramic board or an FR4 board.

While an invisible back side R of the printed circuit board 2 is not populated, the front side V shown is equipped with a plurality of semiconductor light sources in the form of LEDs 8 and with a plurality of non-light-emitting electronic components 9, 10. The LEDs 8 are e.g. white light emitting LED chips. They are arranged in a circumferential direction of the circuit board 2 equidistantly annular. The electronic

Devices 9, 10 (e.g., capacitors, resistors, coils, switches, potentiometers, integrated semiconductor devices, or ICs such as microcontrollers, ASICs, FPGAs, etc.) form at least part of a driver for the LEDs 8. They also have other functions

provide, e.g. that of a radio transmitter and / or

Radio receiver, a motion detector, etc.

The LEDs 8 are arranged on an annular outer portion 11 of the printed circuit board 2 and the electronic components 9, 10 on an annular inner portion 12 of the printed circuit board 2. The LEDs 8 are inwardly to the

electronic components 9, 10 and radially outwardly to the outer edge 4. The electronic components 9, 10 are spaced from the inner edge 5. The arrangement of the LEDs 8 on the outer portion 11 can provide a large-area radiation. In addition, can be so reduce an array density of the LEDs 8, resulting in a lower thermal load.

This printed circuit board 2 has the advantage that the LEDs 8, the electronic components 9, 10 and the electrical

Supply lines are essentially in one plane, which allows a very flat design.

On the front side V of the printed circuit board 2, a plurality of fastening elements in the form of latching sleeves 13 are also arranged. The latching sleeves 13 are in the inner portion 12 in

Circumferentially arranged evenly distributed.

2 shows in a view obliquely from above one

different equipped annular circuit board 2, 2b of the light module 1. In contrast to the circuit board 2a of Fig.l are now respective groups of two LEDs 8a, 8b

annularly arranged on the outer portion 12 of the circuit board 2. The LEDs 8a, 8b of a group are close

arranged together to support effective light mixing. The groups of LEDs 8a, 8b are

annularly arranged with a groupwise equidistant distance in the circumferential direction on the circuit board 2. For example, the LEDs 8a and 8b may emit white light, red light, or green-white or amber light.

In addition, not the snap sleeves 13 are shown, but the present in the circuit board 2 holes 14, in which the snap-on sleeves 13 are used.

3 shows in a view obliquely from above the light module 1 with purely exemplary of the circuit board 2b of Figure 2 with an attached to the circuit board 2 annular cover 15. The one-piece cover 15 covers the entire front side V of the circuit board 2, and thus also the LEDs 8a, 8b and the electronic components 9, 10. The Cover 15 here is made of transparent plastic and may be present as an injection molded part.

4 shows the cover 15 in a view obliquely from above. 5 shows the cover 15 in a plan view obliquely from above. Fig.6 shows the lighting module 1 as

Sectional view in side view.

The cover 15 has a central recess 16, which in plan view approximately the shape of the recess 3 of

PCB 2 corresponds. An outer side edge 17 of the cover 15 is folded in a fold down or back and so circumferentially tight over the outer edge 4 of the circuit board 2 can be pulled over. Locally flattened portions 17a of the

Side edges 17 serve for correct angular alignment of the cover at correspondingly flattened areas of the outer edge 4 of the printed circuit board 2.

The cover 15 has a comparatively narrow and flat annular bulge 18, which overhangs the LEDs 8 and 8a, 8b. The cover 15 also has a bulge in the form of a comparatively wide and

upstanding annular portion 19, which vaulted the electronic components 9, 10. The upstanding portion 19 is thus significantly higher than the bulge 18. The upstanding portion 19 provides a large volume

Housing the electronic components 9, 10 ready, especially if they are not low in height, e.g. Capacitors. Between the upstanding portion 19 and the bulge 18, the cover 15 rests on the circuit board 2.

In order to avoid shading of the light emitted by the LEDs, the high area may have a slope 20 towards the outside or in the direction of the bulge 18.

The cover 15 is locked for attachment to the circuit board 2 with the latching sleeves 13. She points to the Top of the raised portion 19 introduced

cup-shaped recesses 21, in the side walls a plurality of load hooks or locking tabs 22 are integrated. The recesses 21 extend in the direction of the printed circuit board 2. The locking tabs 22 latch into the snap-on sleeves 13. A bottom of the recesses 21 is open and thus constitutes a hole.

On an outer side wall 24 of the upstanding portion 19 a plurality of mounting portions in the form of receptacles 25 are present. The receptacles 25 are distributed in the circumferential direction, in particular distributed equidistantly, arranged and extend to an upper side 26 of the upstanding portion 19. They have a reaching up to the top 26

Insertion section 25a and one of them transversely outgoing

Transverse section 25b. So can a corresponding

Insert insert first into the insertion section 25a and then screw it into the transverse section 25b, e.g. similar to a plug / turn movement of a bayonet connection.

Similar receptacles 25 are also present in the region of an inner side wall 27 of the upstanding region 19.

In the top 26 of the upstanding portion 19 also push button 28 are integrated, which are integrated here as elastically deflectable tabs in the cover 15. These may e.g. at a deflection in the direction of the circuit board 2 arranged there electrical or electronic buttons or

Press switch or like (eg as shown here) a cable clamp or similar. to solve. For the cable connection, a plurality of channels 29 leading inwards through the cover 15 are provided on the inner side wall 27 in the area of the push-buttons 28. Thus, in particular at least one electrical supply line, which runs through the central recess 3 and 16, are easily guided under the cover 15 to the printed circuit board 2. The at least one channel 29 allows compliance with safety distances and a particularly easy to install connection due to its leadership. On the circuit board 2 and / or on the cover 15 may be at least one strain relief for at least one electrical lead, such as an electrical cable, are.

The cover 15 may also have recesses 37, in the bottom of which a longitudinal hole 38 is located. A longitudinal hole 38 is located in alignment above a längsschlit-like recess 6 in the circuit board 2. The longitudinal hole 38 and the recess 6 allow a implementation of a

Fastener, e.g. a screw, for example, for fixing the light module 1 to a mounting adapter or directly to a wall or ceiling. Due to the elongated shape, the light module 1 can be variably positioned by a lateral displacement.

7 shows, as a sectional view in a view obliquely from above, a detail of the lighting module 1 in the region of a latching sleeve 13 shown cut away, which is inserted into the hole 14 in the printed circuit board 2. The e.g. made of metal latching sleeve 13 has a continuous channel 30 through which a screw S is guided here. A head of the screw S rests on the locking sleeve 13. On an outer circumferential surface of the latching sleeve 13 is a circumferential latching projection 31, which is formed by means of an introduced into the outer circumferential surface of the annular groove 32. The other side of the annular groove 32 serves as a stop against the printed circuit board 2. The locking tabs 22 of the recess 21 of the cover 15 engage behind the locking projection 31 and engage in the annular groove 32, so that the cover 15 held on the circuit board 2 via the locking sleeve 13 becomes. The

For example, screw S may be an attachment of the

Light module 1 on its back R serve, for example, directly to a wall or ceiling, or for attachment rearward additional modules or accessories. 8 shows as a sectional view in a view obliquely from above a section of the lighting module 1 in the region of the pushbutton 28. The pushbutton 28 is formed by cuts in the upper side 26 of the upstanding portion 19 and has a

Operating area 33 for pressing by a user. The operating area is connected to an elastically deformable beam or bending area 34, which is the elastic

Restoring force with pressed-in operating area 33

provides. From a lower side of the operating area 33, a plunger area 35 projects in the direction of the printed circuit board 2. Below the plunger area 35, a printed circuit board 2 protrudes

Clamping element 36 (e.g., a terminal block) is attached. If the plunger area 35 presses on the clamping element 36, associated clamping contacts are opened.

A supply of electrical leads to the

Clamping contacts of the clamping element 36 via existing on the inner side wall 27 channels 29, which lead through the cover 15. Thus, in particular at least one electrical supply line, which runs through the central recess 3 and 16, are easily guided into the cover 15 into the clamping element 36. The at least one channel 29 extends to the clamping element 36 and allows a

Compliance with safety distances and a particularly easy-to-install connection.

9 shows a view from obliquely above another possible cover 39 of the light module 1. The cover 39 is similar to the cover 15 constructed, but now has no circumferential curvature 18, but annularly arranged individual optical regions 40. These only cover a single LED 8 or

contiguous groups of LEDs 8a, 8b. The optical

Areas 40 allow for a better match to the LEDs 8 and 8a and 8b, respectively. The optical areas 40 like For example, be jet-forming, for example by using as

Diffuser areas or as a lens-like areas are formed. Fig.10 shows in a view obliquely from above yet another possible cover 41 of the light module 1. Instead of the curvature 18, a further, larger curvature 42 is now provided, which serves as a diffuser. This makes it possible to achieve a particularly homogeneous light emission.

The above lighting modules 1, 1 and 15, 1 and 39, 1 and 41 or 61 may already be used as lights themselves.

11 shows, as a sectional view in a view obliquely from above, the lighting module 1 according to the first

Embodiment with a rear-mounted

Mounting adapter 43. This combination 1, 43 may already be used as a (first) lamp LI. 12 shows the mounting adapter 43 in a view obliquely from above.

The mounting adapter 43 may, for example, for fastening the light module 1 to a wall or a ceiling

be designed. Also he likes to use the

Light module 1 be designed as a pendant light.

The mounting adapter 43 has a closed

Ring shape on with an oblique side wall 44 and a central recess 45 in its bottom 46. This can also be regarded as a bottom-open shell shape. From an inner edge 47 of the bottom 46, a dividing wall 48 slopes upwards, at least approximately, especially precisely, to a height of an outer edge 49 of the side wall 44. In the dividing wall 48, there are two inner recesses 50 for a passage of at least one electrical supply line

provided, as well as at a same circumferential angle two outer recesses 51 in the side wall 44, possibly for de same purpose. In front of the inner recesses 50, respectively, mounting regions 52 projecting into the recess 45 are present, which can serve as a strain relief for the electrical supply, for example.

In addition, two vertically continuous channels 54 are present in the bottom 46, which leads to the longitudinal slot-like recesses 6 in the circuit board 2 and to the longitudinal holes 38 of

Cover 15 are arranged in alignment, so that a

Transverse displacement of the components 1, 43 and the lamp LI is made possible against the mounting adapter 43.

In addition, laterally guided longitudinal holes 53 are introduced

(Question: what is their purpose?).

The side wall 44 is connected to the partition wall 48, for example, for increasing stability by radially extending transverse ribs 55.

13 in a view obliquely from above or front one

Cover 62 of a lighting module 61 according to a second

Embodiment. 14 shows the lighting module 61 in a view obliquely from below or behind with the cover 62 and a printed circuit board 63 fastened thereto.

The cover 62 in turn has a circular basic shape, wherein now an inner recess 64 is a rectangular

Basic shape, while an outer edge 65 is formed at least substantially circular. At the outer edge 65 are distributed three inward detent or

Snap areas 66 are present, which can hold the printed circuit board 63 by a wrap around its outer edge 66. Additionally or optionally, depressions 21 in the cover 62 as well as latching sleeves 13 on the printed circuit board 21 can also be provided as described above for latching.

On the front side of the cover 62 shown in FIG. 13, there is the bulge 18, which overhangs the LEDs that are annular at the outer portion of the printed circuit board 63 are arranged. Also, here is an inner upstanding annular portion 67 is provided, which overarches on an inner portion of the circuit board 63 located electronic components. The upstanding portion 67 has a plurality in the region of its outer side wall 68

Attachment areas in the form of locking receptacles 69. The detent recesses 69 are here designed as simple undercuts or detent recesses, in order, for example. to be brought into engagement with latching hooks. The locking hooks can be inserted by means of a simple insertion movement in the locking receptacles 69.

The cover 62 also has a push button 28 for releasing a cable clamp or the like. on to electrical leads

Insert or re-release, which are guided by a plurality of channels 29.

The cover may further include at least one hole or recess 70, for example for accessing controls such as potentiometers located on the circuit board 63.

At an underside of the cover 62 within a

Recess 71 of the printed circuit board 63 is a region 72 for strain relief of at least one electrical supply line.

Fig.15 shows in a view obliquely from above one

Sectional view of one with two essay units or

Additional modules 72 and 73 provided lighting module 1. This combination 1, 72, 73 may be used as a (second) light L2. The first additional module 72 is formed as a translucent or opaque annular diffuser cover, which covers the bulge 18 and homogenizes the light emitted by the LEDs 8 and 8a and 8b. The first additional module 72 may for example be attached to the receptacles 25 of the outer side wall 24 of the upstanding portion 19. The second additional module 73 may be an opaque cover plate which covers the upstanding region 19 and provides an insight into the electronic components 9, 10 largely denied. The second additional module 73 may be attached to the receptacles 25 of the inner side wall 27 of the upstanding portion 19. Alternatively, instead of the two additional modules 72 and 73, a single, combined additional module can be used, which is manufactured in one piece and combines the functions of both additional modules 72 and 73. Such an additional module may be produced in two-component injection molding, for example with a translucent or opaque region and a

opaque area.

Fig.16 shows in a view obliquely from above one

Sectional view of one with another additional part in the form of a metallic back plate (hereinafter also referred to as

This combination 1, 74 may be used as a (third) luminaire L3 Fig. 17 shows the luminaire L3 in sections in a view obliquely from below.

The annular rear plate 74 is arranged on the rear side R of the printed circuit board 2. It covers the printed circuit board 2 and protrudes laterally beyond. The rear plate 74 improves the cooling of the LEDs 8 or 8 a, 8 b and the electronic components 9, 10.

The rear plate 74 has a central recess 75 which corresponds approximately to the recess 3 of the printed circuit board 2 and thus leaves the connection space free. The rear plate 74 optionally has holes provided with a thread 76, by means of which it is screwed by means of the guided through the locking sleeves 13 screws S with the circuit board 2 and the cover 15.

The rear plate 74 has at its inner edge 77 in the region of the channels 29 of the cover 15 recesses 78 to

maintain electrical safety distances.

The lamp L3 can be fastened by means of screws S2 guided through the longitudinal holes 38 and the respective recess 6, eg on a wall or ceiling or on a

Mounting adapter (e.g., 43) or similar.

Fig.18 shows in a view obliquely from below another additional part in the form of a diffuser cover 79 for the light L3 and the combination 1, 74th Die

Diffuser cover 79 is formed annularly with a central recess 80. At an inner edge 81 surrounding the central recess 80, a multi-interrupted, circumferential wall ("mounting wall") goes down or behind.

82). The mounting wall 82 has a plurality, in cross-section L-shaped inwardly projecting into the recess 80

Fastening elements 83 and several with their noses outwardly projecting snap or latch hooks 84. An outer edge 85 is turned down or back, e.g. to

Type of a fold to engage around an outer edge 86 of the back plate 74.

Fig.19 shows in a view obliquely from above an additional part in the form of a reflector ring 80 for the front side

Cover 79. The reflector ring 80 has a curved, flared shape with a larger edge 88 and a smaller edge 89 in cross-section. An outside 87 of the

Reflector ring 80 is reflective.

Fig.20 shows in a view obliquely from below the

Front diffuser cover 79 with the attached attachment 80. For this purpose, the reflector ring 80 rests with its larger edge 88 on the diffuser cover 79 and on its annular wall 90 and is at its smaller

Edge 89 of the latch hook 84 engaged behind latching. Thus, by means of a simple opening movement, a secure positive fit of the ring reflector 20 on the cover 79 can be achieved.

The fasteners 83 are used to attach the so assembled parts 79, 80 to the receptacles 25 of

Cover 15 on the outer side wall 24 of the upstanding Area 19 by means of a plug / turn movement, as shown in Fig.21. After attaching the parts 79, 80 to the cover 15. This combination L3, 79, 80 and 1, 74, 79, 80 may also be considered as a (fourth) L4 light.

Fig.22 shows the lamp L4 fragmentary as

Sectional view in an oblique view from above. The reflector ring 80 vaulted the bulge 80 and thus also the LEDs 8 or 8 a, 8 b, in such a way that it is spaced from the cover 15 to the front thereof

Diffuser cover 79 has. As a result, the light emitted from the LEDs 8 or 8a, 8b is partially applied to the light

the back plate 74 is formed at least in a light-deflectable area of the front of its reflective, in particular diffuse reflective designed, for example, by a white coating, e.g. made of titanium oxide. That on the

Rear plate 74 reflected light is broad-angle and uniform in its intensity and / or color distribution discharged through the translucent diffuser cover 79 to the outside. Thus, the annular wall 90 can be practically homogeneously illuminated and even let such light through. So that the LEDs 8 or 8a, 8b do not protrude too strongly in terms of lighting, the diffuser cover 79 is designed with a relatively large distance to the LEDs.

The rear plate 74 has a bulge 91 in the region of the outer edge 85, which prevents lateral light leakage and diffuser cover 79 during assembly

circulating leads. The bulge 91 is formed as a forward facing (in the direction of the diffuser cover 79) embossing in the rear panel 74. Light reflected at the curvature 91 is, in particular, directed forwardly onto the diffuser cover 79 and may there generate a slightly brighter light ring. By a variation of the shape,

In particular of the course, the vault 91 may be the shape of the Light ring to be changed, for example, in a spiral, a

Ray patterns, etc.

In order to prevent the reflector ring 80 from casting a visible shadow edge (passing through a straight line from the LEDs 8 or 8a, 8b to the larger edge 88 of the reflector ring 80), this shadow edge is brought into a step 92 in the wall 89 of FIG Diffuser cover 79 placed. The luminaire L4 allows a large flat construction based on the light module. 1

On the lamp L4, a circular cover plate 93 can be further attached, which is shown in Fig.23. The

Cover 93 may consist of opaque material or be so strongly opaque or translucent that a viewer behind the cover 93 arranged parts and / or structures of the lamp L5 can not perceive pictorial, but at best as schemes. The strong opaque

Cover 93 has the advantage that it has a

Light pipe allowed.

However, the cover 93 may be e.g. also transparent

be executed, wherein on an underside of the cover 93, an insert plate (o. Fig.) Can be inserted. Also, a small part of the light generated by the LEDs 8 or 8a, 8b may be directed in the direction of a center of the cover plate 93 and thus also of a luminaire center so particularly effectively, so that it does not remain dark. The cover plate 93, in particular insert plate, may e.g. in terms of her

Color, possibly lettering or even materiality (fabric, wallpaper, etc.) to be personalized.

The cover plate 93 may be formed for mounting further elements, e.g. of pointers, e.g. out

photoconductive material. To reflect on a particular transparent

To prevent cover 93, this may be slightly curved. The cover plate 93 has on its the printed circuit board 2 and the cover 15 facing the rear side a plurality of L-shaped fastening elements 94 for engagement in the receptacles 25 in the region of the inner side wall 27 of the upstanding portion 19 or on the diffuser cover 79. The cover plate 93 may in particular be mounted after the diffuser cover 79 and partially cover it.

Fig.24 shows in a view obliquely from above the arrangement of Fig.21 with the cover 93 of Fig.23. Such an arrangement L4, 93 can also be regarded as a luminaire L5. 25 shows the light L5 as a sectional view in a view obliquely from above.

26 shows a sectional view in a view obliquely from above of a section of the arrangement of Fig.24. The cover plate 93 covers the diffuser cover 79 above the printed circuit board 2. The cover 93 has in particular an outer edge region 95, which covers an inner edge region of the diffuser cover 79, which extends from the step 92 to the mounting wall 82. In particular, this outer edge region 95 may be treated opaque in order to prevent an insight into the inner edge region of the diffuser cover 79. The

Cover 93 may be satin-finished or partly satinated at its outer edge region 95 for this purpose, for example. A

Surface of the outer edge portion 95 of the cover 93 may additionally or alternatively be partially painted or partially vaporized, so that a portion of the light is forwarded radially inwards (towards the middle of the luminaire).

The diffuser cover 79 may protrude upward or forward so that the diffuser surface is at least one outer

Overhung ring area of the cover in height. Although the invention has been further illustrated and described in detail by the illustrated embodiments, the invention is not so limited and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.

Generally, "on", "an", etc. may be taken to mean a singular or a plurality, in particular in the sense of "at least one" or "one or more" etc., unless this is explicitly excluded, e.g. by the expression "exactly one", etc.

Also, a number may include exactly the specified number as well as a usual tolerance range, as long as this is not explicitly excluded.

_c

Reference sign

1 light module

2 circuit board

2a circuit board

2b circuit board

3 recess

4 outer edge

5 inner edge

6 return

7 return

8 LEDs

8a LED

8b LED

9 electronic component

10 electronic component

11 outer portion

12 inner part area

13 locking sleeve

14 holes

15 cover

16 recess

17 outer margin

17a subarea

18 bulge

19 high-level area

20 slants

21 deepening

22 locking tab

24 outer side wall

25 recording

25a insertion section

25b cross section

26 top

27 inner sidewall

28 pushbuttons

29 channel

30 channel _r

36

31 rest stop

32 ring groove

33 operating area

34 bending area

35 ram area

36 clamping element

37 deepening

38 longitudinal hole

39 cover

40 optical range

41 cover

42 vaulting

43 mounting adapter

44 side wall

45 central recess

46 floor

47 inner edge

48 partition

49 outer edge

50 inner recess

51 outer recess

52 mounting area

53 longitudinal hole

54 channel

55 cross rib

61 light module

62 cover

63 circuit board

64 inner recess

65 outer edge

66 rest area

67 upstanding area

68 outer side wall

69 rest

70 recess

71 recess

72 additional module

73 additional module _3?

74 rear panel

75 recess

76 holes

77 inner edge

78 return

79 Diffuser cover

80 recess

81 inner edge

82 mounting wall

83 fastener

84 snap hooks

85 outer edge

87 outside

88 larger margin

89 smaller edge

90 wall

91 vaulting

92 step

93 cover disc

94 fastener

95 outer edge area

LI first light

L2 second light

L3 third light

L4 fourth light

L5 fifth light

Rear side

S screw

S2 screw

V front side

Claims

claims

1. light module (1; 61), comprising

an annular printed circuit board (2, 2a, 2, 2b)

which a plurality of semiconductor light sources (8; 8a, 8b) and electronic components (9, 10) are arranged,

in which

- The semiconductor light sources (8; 8a, 8b) on a

outer portion (11) of the printed circuit board (2, 2a, 2, 2b) and the electronic components (9, 10) on an inner portion (12) of the printed circuit board (2) are arranged.

2. lighting module (1) according to claim 1, wherein the

Semiconductor light sources (8; 8a, 8b) have a predetermined radial distance from the electronic components (9, 10).

3. lighting module (1) according to any one of the preceding claims, wherein the semiconductor light sources (8; 8a, 8b) on the circuit board (2, 2a, 2, 2b) annularly with a single or groupwise equidistant distance in

Circumferential direction are arranged.

4. lighting module (1) according to any one of the preceding claims, wherein on the circuit board (2, 2a, 2, 2b) more

Locking elements (13) are arranged.

5. lighting module (1) according to any one of the preceding claims, wherein at least the semiconductor light sources (8; 8a, 8b) and the electronic components (9, 10) of a cover (15; 39; 41) are arched, which at least partially transparent is.

6. lighting module (1) according to claims 4 and 5, wherein the cover (15; 39; 41) with the latching elements (13) is latched.

7. lighting module (1) according to any one of claims 5 or 6, wherein in the cover (15) and in the circuit board (2, 2a, 2, 2b) at least one group of mutually aligned holes (6, 38) is present.

8. lighting module (1) according to one of claims 5 to 7, wherein on the cover (15; 39; 41) at least one

Attachment area (25) in particular

positive fastening of an attachment unit (73,

79) is present.

9. lighting module (1) according to claim 8, wherein the cover

(15; 39; 41) has a raised, annular area which overhangs the electronic components (9, 10).

10. lighting module (1) according to any one of claims 8 or 9, wherein on an outer side wall (24) and / or inner

Sidewall (27) of the cover (15; 39; 41), in particular of the upstanding, annular region (19) of

Cover (15; 39; 41), at least one

Attachment area (27) is present.

11. Light module (1) according to one of claims 5 to 10, wherein at least one channel (29) on an inner side wall (27) of the cover (15; 39; 41) is arranged.

12. lighting module (1) according to any one of claims 5 to 11, wherein the cover (39; 41) at least one beam-forming

Has transmitted light area.

13. Light module (1) according to one of the preceding claims, wherein on the semiconductor light sources (8; 8a, 8b) and the electronic components (9, 10) facing away

Side of the printed circuit board (2, 2a, 2, 2b)

Fixing adapter (43) is arranged. Luminaire (1, 1.15, 1.39, 1, 41, 61, L1-L5), comprising at least one light-emitting module (1) according to one of the preceding claims.