EP3001857A1

EP3001857A1 - Lighting device and mounting method for a lighting device

Info

Publication number: EP3001857A1
Application number: EP14726105.1A
Authority: EP
Inventors: Andreas Ritzenhoff; Lutz ENGEL; Jörg RACHE; Oliver Arnold
Original assignee: Seidel GmbH and Co KG
Current assignee: Seidel GmbH and Co KG
Priority date: 2013-05-15
Filing date: 2014-05-13
Publication date: 2016-04-06
Anticipated expiration: 2034-05-13
Also published as: ES2727253T3; WO2014184210A1; WO2014184213A1; EP3001855A1; EP3001857B1; EP3001856A1; US20160123542A1; EP3001854A1; EP3001855B1; WO2014184212A1; DE102014101403A1; WO2014184215A1; CN105229369A; WO2014184207A1; WO2014184214A1

Abstract

The invention relates to a lighting device comprising at least one semiconductor lighting means (30) and a housing (10) in which the at least one semiconductor lighting means (30) is accommodated. A base body (20), which supports the semiconductor lighting means (30), is arranged in the housing and comprises a cavity in which a connection module (40) is arranged. Said lighting device is characterised in that openings (224) are arranged laterally in the base body (20), by means of which the connection module (40) can be fixed during the mounting step. The invention also relates to a method for mounting a lighting device.

Description

Lighting device and method of mounting a lighting device

The invention relates to a lighting device with at least one semiconductor lamp and a housing in which the semiconductor lamp is accommodated, wherein in the housing a base body is arranged, which carries the semiconductor lamp and wherein the base body has a cavity in the a connection module is arranged. The invention further relates to a method for mounting a lighting device. Luminous devices with semiconductor lamps are characterized by a high specific luminosity and thus low energy consumption and by a long life. In operation, the semiconductor bulbs must be cooled, since both the lifetime and the effectiveness achieved decreases with the temperature of the lamps. With the increasing light output of the semiconductor lamps and thus also increasing electrical power consumption, the need for effective cooling of the semiconductor lamps is also increasing. In addition to the heat sink and semiconductor light-emitting means, a driver module for the semiconductor light-emitting means, also referred to as a connection module, is frequently arranged in the housing of the lighting device and provides a current suitable for controlling the semiconductor light-emitting means. Furthermore, an optical element, for example a reflector and / or a lens arrangement, is optionally provided to achieve a desired spatial radiation characteristic. In particular, in the case of so-called retrofit lighting devices, which in their

Form and with regard to the electrical connection known configurations of lighting devices, such as incandescent or fluorescent tubes are adapted, the lighting device and corresponding to the housing with respect to the form and appearance must comply with narrow specifications. In previously known semiconductor light-emitting devices, this could only be achieved with a relatively complex structure that can be mechanically assembled. The manufacturing process of such known light-emitting devices is correspondingly complicated, which is reflected on the one hand in the price and on the other hand in an inadequate quality.

Usually, the semiconductor lamp of the lighting device on a carrier board on which one or more light emitting diodes (LEDs - light emitting diodes) are mounted. The carrier board carries and contacts the LEDs. It also serves to dissipate the heat emitted by the LEDs to a heat sink. In a compact and thermally favorable construction of the lighting device, the semiconductor illuminant is mounted on a base body having a cavity in which the connecting device is arranged. Frequently, a plug is used which extends through an opening in the base body and electrically connects the semiconductor lamp with the lying inside the base body connection module. In this case, in particular in the case of automated assembly, the problem arises of connecting the plug through the opening to the connection module.

It is therefore an object of the present invention to provide a lighting device of the type mentioned, in which an electrical contact of the semiconductor light-emitting means can be made simple and automated. It is another object to provide a suitable assembly method for establishing the connection.

This object is achieved by a lighting device and a method having the respective features of the independent claims. Advantageous embodiments are specified in the dependent claims.

According to the invention, a lighting device of the type mentioned above is characterized in that openings are arranged laterally in the base body, through which the connection module can be fixed during an assembly process. In this way, the connection module can be suitably positioned to put the plug for connection can. The lateral access does not hinder the application of the plug from above.

In a preferred embodiment of the lighting device, the openings are arranged in an upper region of the base body, whereby the connection module can be well positioned, even if it is already fixed with play in the lower area.

With regard to the production process and a space-saving construction of the base body is preferably designed in two parts, wherein it is composed for example of a lower shell and an upper shell. The two shells form the cavity in which a connection module for the power supply of the semiconductor lamp is arranged. In such a two-part design of the base body, the openings used in the assembly are preferably positioned in the upper shell Particularly advantageous is the upper shell with the openings in a deep-drawing process urgeformt. It is then formed in only one manufacturing step, the upper shell and formed the openings. For example, upper and lower shells can be deep-drawn from aluminum.

In a further advantageous embodiment of the lighting device, the base body is fixed detent or clamped in the housing. More preferably, the housing comprises a housing base and a translucent, e.g. translucent or transparent housing upper part, wherein the

Upper housing part is locked to the lower housing part. Particularly preferred is the locking of the upper housing part with the

Lower housing part of the base body defined in the housing. These embodiments also serve to simplify an automated composition of the lighting device. Further preferably, guide webs are formed inside the housing lower part, which define the connection module in its lower region.

The lighting device described can be particularly well designed as a retrofit lighting device, in which, for example, a look and a connection diagram of a classic light bulb are imitated.

An inventive method for mounting a lighting device with at least one semiconductor lamp and a housing in which the at least one semiconductor lamp is accommodated, wherein in the housing a base body is arranged, which carries the semiconductor lamp, and which has a cavity in a terminal module is arranged, has the following steps. There are two arms of a mounting auxiliary tool introduced through lateral openings of the base body in the cavity. With the help of the arms, the connection module located in the cavity is positioned and fixed for further assembly steps. Such a further assembly step is, for example, plugging in a plug for electrical contacting of the connection module by means of a further breakthrough in the base body. This results in the advantages already described in connection with the luminous device.

Embodiments of the lighting device according to the invention will be explained in more detail by means of figures. The exemplary embodiments illustrate Ren further advantageous embodiments of the lighting device or of components of the lighting device. The figures show:

1 to 3 each show an embodiment of a lighting device in the retrofit style in schematic exploded views; and

Fig. 4 to 15 details of various embodiments of

Lighting devices in each case in schematic sectional representations or schematic perspective

Views.

In FIGS. 1 to 3, three different embodiments of a lighting device according to the application are each shown in a perspective exploded view. Identical or equivalent elements are identified in these and the following figures by the same reference numerals.

In all three illustrated embodiments, the lighting device is designed as a retrofit lighting device, that is, with respect to the electrical connection and the shape of known bulbs, in this case light bulbs with screw thread (E14 or E27), oriented. It should be noted that the features shown in this application can also be implemented in lighting devices with different shape and / or other connection sockets or connection options, including lighting devices that are not designed as retrofit lights. In part, the featured features are also used in other electronics applications that have no bulbs.

The lighting device has a housing 10, which has a lower housing part 1 1 and an upper housing part 12 mounted thereon, and a relative to the upper housing part 12 on the lower housing part 1 1 attached socket 13, which serves to hold the lighting device in a socket and the electrical contact. It is a latching or snap-in connection of the housing lower part 1 1 and the housing upper part 12 is provided. For this purpose, the parts in the connection area are configured correspondingly interlocking.

Preferably, a detent is provided, which can transmit a torque, so that the two housing parts 1 1, 12 are fixed against rotation to each other. Except for the contacting surfaces on the base 13, the individual parts of the housing 10 are made of plastic, preferably in an injection molding drive. At least the upper housing part 12 is held translucent or transparent in order to emit the light emitted by the lighting device. The upper housing part 12 may advantageously be produced in a Spritblasverfahren.

In the housing 10, a base body 20 is used, which is in each case constructed in two parts in the cases shown here and has a lower shell 21 and an upper shell 22 connected thereto. The base body 20 has a diverse function. It serves, for example, to hold a semiconductor light-emitting means 30, hereinafter called light-emitting means 30, which is fastened to the upper shell 22.

Further, the base body 20 is made of a good heat-conductive material, preferably a metal such as aluminum, and thus serves the heat dissipation of the light bulb 30 produced heat. Both the lower shell 21 and the upper shell 22 are preferably produced in a deep-drawing process, which allows a cost-effective production with minimum wall thicknesses. The lower shell 21 and the upper shell 22 are connected to one another in a mechanically loadable manner, as a result of which there is good heat conduction from the upper shell 22 to the lower shell 21, so that the lower shell 21 can also absorb heat from the illuminant 30 and pass it on or release it. Both elements, lower shell 21 and upper shell 22, are constructed substantially rotationally symmetrical, wherein the connection of the two elements takes place together by a Fügepassung, possibly supported by locking means in the connection region, for example, formed in the connecting region circumferential bead or notch.

The base body 20 is composed essentially in the shape of a capsule, with a connection module 40 being accommodated in its inner cavity. The connection module 40 is used to implement the supplied via the base 13 alternating current of the house-light network, so for example in the voltage range of 1 10 volts to 230 volts, in a suitable for supplying the light source 30 DC. According to the application base body 20 and the lower housing part 1 1 are locked together, wherein the latching is formed so that thermal expansion of the base body 20, in particular the lower shell 21 of the base body 20, no inadmissible and materialzerstörende- or tiring stress on the lower housing part 1 1 exerts. This is a good thermal contact between the lower shell 21 and the lower housing part 1 1, so that heat generated within the lighting device, among other things, on the lower housing part 1 1 is discharged. The latching of the base body 20 with the lower housing part 1 1 is shown in more detail in connection with Figures 5 to 7. Further, in the direction of the base 13, an opening is provided in the lower shell 21, through which connection cables 41 of the connection module 40 are led to the base 13. In the upper shell 22, an opening is also introduced, through which an electrical connection from the lighting means 30 to the connection module 40 takes place. This can be done, for example, via a plug 42 which is preassembled, for example soldered, on the semiconductor light-emitting means 30.

As the embodiments of FIGS. 1 to 3 show, the lighting means 30 may have a planar carrier board 31, on which a plurality of Leuchtele- elements, here light emitting diodes 32 (LEDs - light emitting diodes) are arranged. Such a designed illuminant 30 radiates substantially perpendicular to the surface of the carrier board 31, ie in the direction of the axis of symmetry (screw axis) of the lighting device. In order to achieve a radiation also perpendicular to the axis of symmetry, an optical element 50 is provided in the embodiments of FIGS. 1 and 3, which is arranged in the emission direction behind the light source 30 and influences the emission characteristic of the lighting device. The optical element 50 is mounted on the upper shell 22 in the embodiments shown. The optical element 50 is preferably also a metal element produced in a deep-drawing process, which due to the attachment to the upper shell 22 or directly to the carrier board 31 can also absorb and release heat. Alternatively, the optical element 50 may also be made of plastic, wherein transparent and / or reflective components can be used.

In the embodiment of FIG. 1, the optical element 50 reflective surfaces 51 which are configured rotationally symmetrical funnel-shaped. The reflective surfaces 51 divert a majority of the radiation emitted by the light emitting diodes 32 radially outward. Centrally, the optical element 50 is open, so that a further part of the radiation emerges axially. In the embodiment of FIG. 3, the optical element 50 comprises a lens 52, which is arranged axially in front of the light-emitting diodes 32. Here, the lens 52 is a diverging lens which transmits the radiation emitted by the light-emitting diodes 32. expansion beam and thus widens the Abstrahlcharaktehstik in the radial direction. Because of its flat design, the lens 52 can be advantageously designed as a Fresnel lens. It is also possible to use optical elements 50 which have both reflective surfaces 51 and lenses 52.

The components of the lighting device are designed with regard to a possible automation of the manufacturing process, in particular the process of assembling the lighting device. This includes, for example, that parts are easily accessible and orientable. Furthermore, connections between the parts are preferably snap-fit and / or latching and / or joining connections, which can be particularly preferably assembled in a common joining or latching direction, particularly preferably along the axis of symmetry of the lighting device that is shown in FIGS Sockets 13 is also the direction in which the lighting device is screwed into a socket. In the context of the application, this direction is also referred to as the axial direction.

The three lighting devices shown in FIGS. 1 to 3 differ in the exact shape of their components, the external dimensions and the light output. Nevertheless, they all have a comparable basic structure. This makes it possible to produce a plurality of different lighting devices on the same production lines automatically, without the need for a model change profound changes to the production line or the manufacturing process. It creates a kind of modular system of design solutions that can be quickly responded to market requirements and small changes in the components, such as new bulbs. New developments can be flexibly and quickly integrated into new products.

Further details of the lighting devices, which are relevant, inter alia, for automatable production, are described in the following advantageous embodiments of the lighting device. In FIGS. 1 to 3, an advantageous attachment possibility for the lighting means 30 is indicated on the upper shell 22, which is shown in more detail in FIG. According to the application, the illuminant 30 is mounted on the base body 20 by means of a screw connection. 4, an embodiment of a lighting device is shown in various representations and different mounting conditions. The attachment option for the illuminant 30 on the upper shell 22 indicated there can be used, for example, for the luminous devices of FIGS. 1 to 3.

In Fig. 4a, the upper shell 22 used is first shown. The upper shell 22 has an integrally molded sleeve 221 on its upper side, on which the illuminant 30 is mounted. The sleeve 221 represents a pipe section which is open on both sides and which is fixedly connected to the upper shell 22 at the lower end. As previously mentioned, the top shell 22 is preferably made of aluminum from a deep drawing process. Particularly preferably, the sleeve 221 is already formed in this deep-drawing process. The sleeve 223 is thus in the primary molding process, with which the upper shell 22 is brought into its basic form formed. In this way, the sleeve 221 is not only formed integrally with the upper shell 22, but also in a manufacturing step.

In a next assembly step, force is then applied to the sleeve 221 from above with a stamp, whereby the surroundings of the sleeve 221 on the upper side of the upper shell 22 are dented. Seen from the side, the sleeve 221 then projects less high above the surface of the upper shell 22, as can be seen in FIG. 4b. In Fig. 4b, the assembly of the illuminant 30 with the aid of the indented sleeve 221 is shown. For the installation of the illuminant 30, the lighting device may already be partially pre-assembled. Specifically, for example, the lower housing part 1 1 already on the base 13 up or be used, from the base body 20, the lower shell 21 can be inserted into the lower housing part 1 1 and locked with this. For this purpose, a locking bead 21 1 can be formed circumferentially on the lower housing part 1 1, which engages under latching projections of the housing lower part 1 1. In addition, the connection module 40 may already be inserted into the lower shell 21, wherein the connecting wires 41 are possibly already connected to the base 13, for example, soldered or plugged into corresponding plug contacts are.

After placing the upper shell 22 on the lower shell 21, the illuminant 30 is placed on top of the upper shell 22, wherein the sleeve 221 at least partially by a designated breakthrough of Trägerplatii- ne 31 (not provided with reference numeral in FIG. 4) penetrates. By further, in the figure also not provided with reference numerals openings in the carrier board 31, the lamp 30 is contacted by means of the plug 42 to the connection module 40. This step will be explained in more detail below in connection with FIG.

In a next processing step, a self-tapping screw 222 is then screwed into the indented sleeve 221. The screw preferably has a fine thread, wherein the length of the sleeve 221 allows a good fit of the screw 222. By previously pressing the sleeve 221 has around the sleeve around a dent in the upper shell 22 is formed, which has a resilient effect and ensures a permanently elastic attachment of the bulb 30. Even with thermal expansion of the components involved, a uniformly high contact pressure of the light means 30 is given to the upper shell 22, which leads to a good thermal contact. In addition, via the sleeve 221 and the screw 222, at least one-pole electrical contacting of the luminous means 30 can take place.

FIGS. 4c and 4d again show the assembled unit of upper shell 22 and luminous means 30 in a side view and a perspective view, respectively.

FIG. 5 shows an advantageous method of assembling the plug 42. The plug 42 serves to electrically contact the lighting means 30 with the connection module 40, which is inserted into the cavity of the base body. The connection module 40 is guided in its lower region by guide webs 1 14, which are formed on the inside of the housing lower part 1 1 and protrude through corresponding openings in the lower shell 21 in the interior of the base body 20. However, this guide is not so free of play that the upper edge of the connection module 40 is positioned exactly below the opening in the upper shell 22, through which the contact part of the plug 42 is guided.

According to the application, two apertures 224 are arranged laterally in the upper shell 22 (compare FIGS. 4a, b and 5a), through which arms 1, 2 of a mounting auxiliary tool are inserted in the assembly process. This mounting state is shown in Fig. 5, wherein Fig. 5a shows a side sectional view, Fig. 5b shows a perspective view and Fig. 5c shows a horizontal section. As can be seen in particular in the sectional view of Fig. 5c, the arms 1, 2 of the auxiliary tool at its front, inserted into the interior of the base body 20 end V-shaped cut. With these V-shaped cuts, a printed circuit board of the connection module 40 is gripped and centered. The upper end of the connection module 40 is thereby pushed into a correct position, in which the plug 42 can be placed easily.

The further assembly process is illustrated with reference to FIGS. 6a and 6b. Fig. 6a shows first the final mounted device. In Fig. 6a is well the above-mentioned indentation (reference numeral 223) in the upper shell 22 can be seen.

Compared to the state shown in Fig. 5c, the optical element 50 is placed, said optical element 50 is formed so that it latches in the upper region of the upper shell 22 at its outer periphery. For this purpose, the upper shell 22 in this area a circumferential

Constriction on. Furthermore, the translucent housing upper part 12 is placed on the lower housing part 1 1 and locked with this.

Fig. 6b shows the area in which the lower shell 21 of the base body 20 and the upper housing part 12 are latched in the lower housing part 1 1, in more detail. Fig. 7a and 7b show in addition to the lower housing part 1 1 with inserted lower shell 21 separately in a sectional view, in Fig. 7 b, in turn, the Verrastungsbereich is shown enlarged. Fig. 7c shows that

Upper housing part 12 in a perspective view separately.

As shown particularly in FIGS. 6b and 7b, is for locking the

Upper housing part 12 with the lower housing part 1 1 in the upper region of the lower housing part 1 1 a locking recess 1 1 1 introduced, the upper edge forms an inwardly facing undercut locking projection. The detent recess 1 1 1 may be circumferentially or at least partially formed circumferentially. In the locking recess 1 1 1 also a corrugation 1 12 is incorporated.

At the top, a widespread edge on the lower housing part 1 1 is formed by the latching projection. The upper housing part 12 has a complementary bearing edge 121, with which it rests on the upper housing part 12. Internally encircling a downwardly pointing tongue is formed on the support edge 121 with a likewise circumferentially or at least partially circumferentially outwardly facing latching lug 122. When plugging the

Upper housing part 12 engages the locking lug 122 in an undercut of the latching projection 1 1 1. Inn present case, the locking lug 122 is formed circumferentially and it is additionally provided with a plurality of again projecting ribs 123. As can be seen in Fig. 7c, the ribs 123 are distributed along the circumference. When the detent 122 is engaged in the detent recess 1 1 1, engage the ribs 123 in the corrugation 1 13, whereby the upper housing part 12 is rotatably connected to the lower housing part 1 1. This is particularly important in a socket 13 with screw thread to the lighting device easy to screw in and out. Even with light fixtures with a bayonet base a rotationally fixed connection must be given.

In its lower region, the upper shell 22 is also slightly angled radially outward. The tongue on which the locking lugs 122 are formed, may be dimensioned so that it lies with its lower end on this bend and thus the upper shell 22 directly and indirectly, the lower shell 21, on which the upper shell 22 rests circumferentially, in the

Housing base 1 1 determines. Alternatively, there may be a small distance between the tongue of the housing top 12 and the base body 20. In this case, the tongue of the upper housing part 12 does not fix the base body 20 directly in the lower housing part 1 1, but provides an additional safeguard in the event that the actual fastening of the basic body 20 is released. Thus, substantially all internal components of the lighting device by the one locking connection between the upper housing part 12 and the

Housing lower part 1 1 defined in the lighting device or at least additionally secured lent.

Details of the attachment of the lower shell 21 of the base body 20 to the lower housing part 1 1 can be seen in Figs. 6b and 7b. Below the detent recess 1 1 1 on the inside of the lower housing part 1 1 a latching projection 1 13 is formed. This can be circumferential, or consist of several distributed segments. The latching projection 1 13 is undercut, so that the locking bead 21 1 of the lower shell 21 is latched under the latching projection 1 13. In the area below the Rastwulst 21 1, the lower shell 21 fits snugly in the lower housing part 1 1, so that the lateral surfaces both superimposed as large as possible. Thus, a good heat transfer from the lower shell 21 to the lower housing part 1 1 is achieved. This is preferably formed thin-walled, so that a heat transfer to the outside of the lower housing part 1 1 takes place where heat is released by convection and / or radiant heat. Although the lower housing part 1 1 is made of plastic, so a non-negligible part of the heat generated by the lighting device can be removed.

Due to the different thermal expansion, however, the metallic lower shell 21 expands when heated relative to the lower housing part 1 1. So that this does not lead to unacceptable stresses in the materials, the locking bead 21 1 and the undercut portion of the locking projection 1 13 are formed so that the locking bead 21 1 can escape in the locked position upwards. For this purpose, for example, both the locking bead 21 1 and the undercut of the locking projection 1 13 rounded. There are no contact surfaces between the lower shell 21 and the lower housing part 1 1, the surface normal is in the direction of thermal expansion. Upon expansion of the lower shell 21 relative to the lower housing part 1 1, the lower shell 21 can escape in the latching position upwards, without being released from the latching.

In the lower part of the lower housing part 1 1, the two previously mentioned opposite U-shaped guide webs 1 14 are arranged through

Openings 212 of the lower shell 21 protrude into the interior of the base body 20. In the guide webs 1 14, the connection module 40, for example, with a printed circuit board (PCB - printed circuit board) are inserted. FIGS. 8 and 9 show a side view and a top view of the connection module 40. The connection wires 40 are fixed to the connection module 40, for example by a solder connection. According to the application, the connecting wires 41 are designed as rigid wires, wherein the diameter of the connecting wires 41 may possibly be larger than is necessary for the electrical conductivity. The rigid execution of the leads 41 has the advantage that the leads 41 in the automated assembly of the connection module 40 can be easily guided through openings in the lower shell 21 and the lower housing part 1 1 and thus stand ready for a Kontaktie- tion with the base 13. As shown in FIG. 8, the terminal wires 41 can be guided in different planes so as to be sufficiently spaced apart from each other even if the terminal points of the lead wires 41 on the terminal module 40 are closely adjacent. The connecting wires 41 may be formed as insulated or non-insulated wires. The bending stiffness or flexural strength allows in an automated Mon- Days also aligning, fixing, bending and / or cutting these leads 41st

10 shows an advantageous electrical connection between a plurality of printed circuit boards. In the present case, these are a printed circuit board of the connection module 40 and the printed circuit board 31 of the lighting means 30. It is noted that this type of connection of two printed circuit boards which are at an angle to one another can also be used in other fields of application. The electrical connection illustrated in FIG. 10 represents an alternative to the plug 42 shown in the preceding embodiments.

In the present case, a breakthrough is present in the carrier board 31, in which the printed circuit board (board) of the connection module 40 with at least one

tab-shaped part is inserted. The tracks of both boards are then soldered together after joining, on the one hand to establish the mechanical and on the other the electrical connection. In this case, on one of the boards, for example on the carrier board 31, a solder supply already be applied, which is melted by means of suitable soldering, for example, heating by laser, ultrasound, induction or another soldering to produce the connection. The method described can be carried out with two planar printed circuit boards as shown here, but also with three-dimensionally designed printed circuit boards (compare also FIG. Fig. 1 1 shows a sectional view of a dome 60, which is provided with openings 61 in a variety of geometries. This dome 60 can be placed on the upper shell 22 by a suitable method, for example, again by joining and / or locking, and surrounds the illuminant 30. The dome 60 leads to an effective light distribution, which reflects the shape of the apertures 61. In addition or as an alternative to the illustrated dome 60, mirrored metal parts can also be arranged around the lighting means 30, which lead to a correspondingly effective light distribution. Various embodiments of an optical element 50 designed here as a reflector (see FIGS. 1 and 3), which serves to distribute the light of the light emitted by the illuminant 30, are shown in FIGS. In the embodiments of FIGS. 13 and 14 is also indicated how such an optical element 50 with appropriately designed legs 53 on Luminous means 30 and, if appropriate, additionally can be fixed to the upper shell 22. It is possible (see Fig. 14), the legs 53 also act as mounting brackets, via which a fixing of the illuminant 30 takes place on the base body 20. In this sense, the optical element 50 additional borrowed and / or alternatively for fixing the light source 30 on the upper shell 22 in the manner of the mounting bracket 222 shown in FIGS. 1 to 4 are used. The flattened area at the lower end of the leg 53 may be formed upon insertion of the optical element 50 by a deformation process during assembly. By connecting the optical element 50 to the illuminant 30, an effective heat dissipation is also achieved to the optical element 50, which can deliver the heat absorbed as radiant heat and next to the base body 20 is an effective element for cooling the illuminant 30. Advantageously, inner and outer reflective surfaces 51 of the optical

Elements 50 formed rounded so that the optical element 50 shows no sharp edges in the shadow. The optical element 50 is formed as a rotationally symmetrical body having an open area inside. The light which penetrates through the inner open region and the light which is guided laterally past the optical element 50 are superimposed in the far region to form a uniformly illuminated light field.

Fig. 15 shows in a perspective view of a three-dimensionally formed light source 30. The carrier board 31 (PCB - printed cage board) of the illuminant 30 is not flat (two-dimensional) formed, but has a three-dimensional structure. In this case, LEDs 32 are arranged on surfaces which point in different directions. In this way, a uniformly radiating characteristic is already achieved by the luminous means 30 itself, so that an additional optical element for light distribution can be dispensed with.

In this embodiment, the support plate 31 of the luminous means 30 is manufactured in a planar form, wherein the support plate 31 has a substantially circular base region 312 with arms 313 projecting radially outward. LEDs 32 are arranged both in the base region 312, as well as on the protruding arms 313. In the base region 312 of the opening 31 1 for mounting the bulb 30 is visible and the further breakthrough, through which the plug is plugged into the contact. The projecting arms 313 are subsequently demounted by deformation. In this case, a relatively large bending radius may be provided in order not to damage the layer structure (aluminum carrier, insulating layer, conductor track). The deformation can be done either before mounting the LEDs 32 or after their assembly.

LIST OF REFERENCE NUMBERS

1, 2 arm of a mounting auxiliary tool 10 housing

1 1 housing base

1 1 1 locking recess

1 12 ribbing

1 13 locking projection

1 14 guide bar

12 housing top

121 Auflagerand

122 locking bead

123 ribs

13 sockets

20 base bodies

21 lower shell

21 1 detent bead

212 breakthrough

22 upper shell

221 sleeve

222 screw

223 Dentation

224 breakthrough

30 semiconductor bulbs

31 carrier board

31 1 breakthrough

3 2 basic area

313 arm

32 light emitting diode (LED)

40 connection module

41 connecting wire

42 plug

50 optical element

51 reflective surface Lens leg

cathedral

breakthrough

Claims

claims

1 . Lighting device with at least one semiconductor lamp (30) and a housing (10), in which the at least one semiconductor lamp (30) is accommodated, wherein in the housing a base body (20) is arranged, the semiconductor lamp (30) carries, and having a cavity in which a connection module (40) is arranged, characterized in that laterally in the base body (20) openings (224) are arranged, through which the connection module (40) is fixable during a mounting operation.

2. Lighting device according to claim 1, wherein the openings (224) in an upper region of the base body (20) are arranged.

3. A lighting device according to claim 1 or 2, wherein the base body (20) from a lower shell (21) and an upper shell (22) is composed, wherein the openings (224) in the upper shell (22) are arranged.

4. Lighting device according to claim 3, wherein the upper shell (22) with the openings (224) is urgeformt in a deep drawing process.

5. Lighting device according to claim 3 or 4, wherein the lower shell (1 1) and / or the upper shell (12) are deep-drawn from aluminum.

6. Lighting device according to one of claims 1 to 5, wherein the housing (10) has a housing lower part (1 1) and a translucent

Housing upper part (12), wherein the upper housing part (12) with the lower housing part (1 1) is locked.

7. Lighting device according to claim 6, wherein by the latching of the upper housing part (12) with the lower housing part (1 1) of the base body (20) in the housing (10) is fixed.

8. Lighting device according to claim 6 or 7, wherein the inside of

Housing base (1 1) guide webs (1 14) are formed, which define the connection module in its lower part.

9. Lighting device according to one of claims 1 to 8, which is designed as a retrofit lighting device.

10. A method for mounting a lighting device with at least one semiconductor lamp (30) and a housing (10) in which the at least one semiconductor lamp (30) is accommodated, wherein in the housing a base body (20) is arranged, which is the Semiconductor lamp (30) carries, and having a cavity in which a connection module (40) is arranged, comprising the following steps:

- Inserting two arms (1, 2) of a mounting auxiliary tool by lateral openings (224) of the base body (20) in the cavity thereof;

- Positioning and fixing the located in the cavity connection module (40).

1 1. The method of claim 10, further comprising the further step:

- Plugging a plug (42) for electrical contacting of the connection module (40) by a further breakthrough in the base body (20).