Attachment element for LED lighting device

Abstract

The present patent describes and illustrates an attachment element for electrically connecting an LED lighting device, the LED lighting device having a circuit board which is provided with a contact area for powering the LED, the attachment element having a substantially annular frame, the invention relates to an attachment element for an LED lamp, comprising a frame provided for covering a circuit board and mechanically holding the circuit board on an arrangement surface of a support, and comprising a contact assembly which is supported in the frame and is used for supplying power to the LED, the frame being divided into a first ring and a second ring, the first ring is provided for surrounding the circuit board and holding the circuit board in a parallel direction with respect to the arrangement surface of the carrier, and the second ring at least partially covers the circuit board and is provided for holding the circuit board in a vertical direction with respect to the surface of the carrier.

Description

Technical Field

[0001] The present invention relates to an attachment element for electrically connecting an LED lighting device, wherein the LED lighting device has a circuit board, which is provided with a contact area for supplying power to the LED, and the attachment element has a substantially annular frame, which is configured to cover the circuit board and mechanically hold the circuit board on a layout surface of a support, and the attachment element has a contact component, which is supported in the frame and is used to supply power to the LED. Background Art

[0002] An attachment element according to this category is disclosed in the German patent DE 10 2008 005 823 B4 of the applicant. This relates to an annular element that covers a circuit board and can hold the circuit board between the annular element and a support, in particular a cooling body. For this purpose, the annular element is fastened to the support by, for example, screwing a bolt. The annular element is laid flat on the circuit board with a portion of its surface facing the circuit board. The annular element carries the contact pieces in the contact chamber. These contacts have a clamping section into which the end of the attached conductor stripped of the insulation can be pushed. Therefore, the attached conductor is held in the clamping section and is electrically contacted. Then, each contact piece has a spring leg, which is used as a compression contact piece and is laid flat on the contact area on the circuit board. That is, the attachment element in the above patent document is not only used for electrical contact, but also for mechanically holding the circuit board on the support. The circuit board itself carries an LED. Therefore, the circuit board is a lighting device that is used in a lamp to replace a more familiar incandescent lamp or a similar traditional lighting device.

[0003] In practice, attachment elements according to this genera have proven to be very special and are used in particular in spotlights, provided these use LED lighting means.

[0004] During this period, LED technology has developed significantly. During this period, circuit boards with mounted LEDs are available in a variety of brightness and power, so the shape and mainly the size of the circuit boards and the LEDs arranged thereon vary greatly between manufacturers and in different power classes.

[0005] Therefore, a variety of attachment elements according to this category can be found on the market, which can each utilize a variety of specific LED circuit boards of a certain manufacturer and a certain power class. In principle, this is advantageous, because a suitable attachment element is available for each application purpose. However, this proposal does not meet the requirements of the lighting industry. There, subcomponents of luminaires are stored in a pre-assembled manner in order to be finally assembled when a certain luminaire type is purchased.

[0006] For example, a certain lamp type with different power intensities is provided, that is, the luminous intensity or color temperature of the lighting device is different. For this lamp type, on the one hand, a uniform housing part is stored. On the other hand, different variants of the actual lighting device, which usually consists of an LED lighting device mounted on a cooling body with matching dimensions, are stored. In this way, when ordering lamps, a modular system can be used, which enables simple final assembly of the inquired lamp.

[0007] However, the storage of a large number of lighting devices can be considered disadvantageous. Completely preassembled units consisting of LED lighting means, attachment elements and suitable cooling bodies account for a considerable proportion of real lamps. Depending on the variety of variants of the lamp type, a large amount of warehouse management is required. Summary of the invention

[0008] The object of the present invention is to provide a suitable attachment element which can be used more flexibly for different circuit board variants of an LED lighting device.

[0009] This object is achieved by an attachment element having the following characterizing features, according to which: -The frame is divided into a first ring and a second ring, a first ring is provided for enclosing the circuit board and for holding the circuit board in a parallel direction relative to the arrangement surface of the support, The second ring at least partially covers the circuit board and is provided for holding the circuit board in a vertical direction relative to the surface of the support.

[0010] The invention provides for the bisection of the attachment element into a first ring, which is responsible for the lateral retention of the circuit board on the support, and a second ring, which covers the circuit board, i.e. lies flat on it, in order to retain it in a vertical direction relative to the surface of the support, which firstly allows the degree of pre-assembly of the lighting device to be reduced. Assembly, i.e. the placement of the circuit board with the LEDs into the first ring and the subsequent fastening of the circuit board in the vertical direction, can take place at a later point in time. In this way, the partially assembled unit consisting of the first ring and the support can be completed at a later point in time with the aid of an LED circuit board, which can be selected in terms of its power and light color or similar properties. Given a uniform circuit board size, the correspondingly required LED circuit board can be added only shortly before the final assembly of the actual lamp.

[0011] Preferably, the present invention is configured: - said first ring has at least one retaining element, - the second ring has at least a coupling element, The retaining element and the coupling element interact with each other in order to fasten the second ring to the first ring.

[0012] In this way, the two rings can be arranged securely next to one another and can be joined to form a structural unit.

[0013] In particular, it is advantageous if one of the rings is provided for being fastened to a carrier by means of fastening means in order to mechanically anchor the circuit board.

[0014] That is, only one of the rings then needs to be fastened to the support in order to secure the entire structural unit, ie the complete attachment element, to the support.

[0015] Specifically, it is provided that only one of the rings, preferably the first ring, is provided for being fixed to a support by means of fastening means in order to mechanically anchor the circuit board, while the other ring, preferably the second ring, is fastened only to the first ring in order to mechanically anchor the circuit board.

[0016] According to the invention, the contact arrangement is formed by at least one supply contact which is provided for being arranged on a contact area of ​​a printed circuit board for supplying power and for this purpose is in particular designed as a pressure contact, preferably a spring leg.

[0017] However, it is also conceivable that the contact arrangement comprises at least one attachment contact which serves for solderless connection of an attachment conductor for supplying power to the LED and which in particular serves as a clamping contact for connecting an attachment conductor from which the insulation has been stripped.

[0018] In the two-piece attachment element proposed by the invention, it is possible that the attachment contact and the supply contact are formed from the same configuration and that only one of the two rings, ie either the first ring or the second ring, carries the contact assembly.

[0019] It is also possible to consider - the contact assembly consisting of the attachment contact and the supply contact is formed by two contact members that are independent of each other, one of the rings, in particular the first ring, carries an attachment contact, another ring, in particular a second ring, carries the supply contacts, When the rings are joined in the assembled, frame-forming state, the attachment contacts and the supply contacts are electrically connected to one another.

[0020] In this embodiment, the wiring that usually needs to be done manually and is therefore cost-intensive can be done before the final assembly of the luminaire. That is, the lighting device can therefore consist of the heat sink, the first ring and the attachment wiring that is done on the first ring, while the LED circuit board and the second ring are not inserted until the final assembly of the luminaire. Here, it is then provided that the first ring is placed on the second ring, and the attachment contacts and the supply contacts are also electrically connected to each other, wherein the supply contacts simultaneously establish an electrical connection with the contact areas of the LED circuit board.

[0021] The invention provides that the inner contour of the first ring has a stop surface which is provided for cooperating with an edge of the circuit board in order to hold the circuit board in a parallel direction relative to the arrangement surface of the support, wherein for this purpose the first ring in particular at least partially accommodates the outer contour of the circuit board.

[0022] The first ring configured in this way is suitable for holding a circuit board of a certain type or of a defined outer contour without play, at least in the horizontal direction, i.e. parallel to the arrangement surface of the support, and thus ensuring a defined orientation of the circuit board or the LEDs arranged thereon. It is conceivable that the inner contour of the first ring only partially accommodates the outer contour of the circuit board to be inserted. It is conceivable that other parts of the inner contour of the first ring are adapted to the outer contour of a circuit board configured in a different manner. In this way, a wide variety of circuit boards with LEDs arranged thereon can be held by the first ring.

[0023] According to a specific embodiment of the attachment element according to the invention, it is provided that the first ring and the second ring are mounted nested in one another, in particular coaxially nested in one another, wherein the first ring is an outer ring and surrounds the second ring which is designed as an inner ring.

[0024] Even though the rings supported in one another, in particular coaxially in one another, are only a preferred embodiment, this arrangement has several advantages. When the rings are supported in one another, firstly certain requirements, such as centering of the LED circuit board and centering of the second ring relative to the light emission direction of the LED, can be implemented particularly easily.

[0025] In addition, two components are obtained which allow for the accommodation of certain technical devices (for example contacts or other elements) which are essential for the function of the attachment element.

[0026] Firstly, it is provided that the inner ring carries at least one locking element, by means of which the inner ring is fastened in the outer ring.

[0027] By means of the locking elements, the inner ring can be anchored particularly easily in the outer ring.

[0028] It is then provided that the outer ring has at least one tensioning element, in particular a tensioning spring, which is provided for tensioning the inner ring in the direction of the LED printed circuit board located in the attachment element or in the direction of the mount.

[0029] By means of the tensioning element, the pressing force acting on the LED circuit board located in the attachment element can be applied to the support, in particular the heat sink, via the inner ring. This significantly contributes to optimizing the heat transfer from the circuit board to the heat sink.

[0030] Against this background, it is envisaged that the inner ring has at least one tensioning receiving element which interacts with the tensioning element of the outer ring and transmits the tensioning force to the inner ring.

[0031] In a specific embodiment, it is provided that the inner ring can be inserted into the outer ring in an insertion direction and can be fastened in the outer ring by rotation in the manner of a bayonet lock.

[0032] By means of the bayonet connection, a particularly secure form-fitting connection between the first and the second ring can be achieved, which enables the inner ring to be arranged securely in the outer ring even under strong mechanical loads, in particular vibrations.

[0033] Furthermore, in this solution it is provided that the tensioning receiving element engages with the tensioning element by rotation.

[0034] It is possible that the tensioning receiving element also acts as a locking element on the inner ring side. However, it is easily conceivable that the tensioning element and the tensioning receiving element interact with each other already before the rotation that causes the bayonet-like fixation. In this case, it is preferred that the tensioning receiving element on the side of the inner ring and the locking element on the side of the inner ring are two separate components.

[0035] In one embodiment, it is provided that the outer ring forms retaining elements, in particular latching projections, which interact with locking elements of the inner ring in order to retain the inner ring in the outer ring.

[0036] In particular, in this embodiment it is provided that the following characteristic feature can be incorporated: the retaining element and the tensioning element are formed by the same component.

[0037] The embodiment in which the retaining element and the tensioning element are formed by a common component enables a simple, component-reduced attachment element to be formed.

[0038] An alternative fixing of the inner ring in the outer ring can be achieved by inserting the inner ring into the outer ring in the insertion direction and being held in the outer ring by a latching connection.

[0039] In this embodiment, the inner ring is anchored in the outer ring only by inserting the inner ring into the outer ring in that the locking element of the inner ring hooks over at least one latching projection.

[0040] In particular, the invention provides that the first ring is designed as a universal component which can accommodate a plurality of different circuit boards, and the second ring is designed as an individual component which is used for a specific circuit board or a group of specific circuit boards with a common circuit board geometry or a common LED size.

[0041] In this way, an important disadvantage of the prior art, namely the need to keep in stock a plurality of different attachment elements which are each adapted to one or only a small number of different LED printed circuit boards, can be eliminated.

[0042] In particular, the inventive concept can be realized by providing an adapter frame which adapts the inner contour of the first ring to the outer contour of the circuit board in order to ensure that the circuit board is supported in the first ring in a substantially play-free manner.

[0043] In the case of such an attachment element, the first ring or the outer ring is designed as a universal component. The inner contour of the outer ring is adapted to large-sized LED circuit boards at most, while when using smaller LED circuit boards, a matching adapter frame is inserted into the outer ring.

[0044] It is also conceivable that the first ring or the outer ring has an inner contour which serves only to accommodate the adapter frame and, depending on the LED printed circuit board used, a matching adapter frame can be inserted into the first ring.

[0045] Furthermore, it is conceivable that the adapter frame is part of the second ring, so that the second ring accommodates the printed circuit board.

[0046] In this case, the advantage can firstly be that an adapter frame and, if in doubt, also an adaptation of the first ring used as a universal component can be omitted. Only the second ring or the inner ring is specific to the circuit board construction. Ideally, the circuit board is delivered with a specific inner ring. The LED circuit board can already be preassembled on the specific inner ring. In this way, only one assembly step is required in order to assemble the attachment element according to the invention and insert it into the luminaire. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Other advantages of the present invention and a better understanding of the present invention will be found in the following description of embodiments. The accompanying drawings show: Figure 1 : An exploded view showing a first embodiment of the present invention; Figure 2a :according to Figure 1 A perspective view of the upper side of the first ring / outer ring; Figure 2b : Figure 2a A top view of the first ring / outer ring; Figure 2c : Figure 2a a bottom view of the first ring / outer ring without attached contacts; Figure 3a :according to Figure 2a A schematic diagram with attached contacts; Figure 3b :Basis of the first ring / outer ring Figure 3a A sectional view along section line III B-III B in FIG. Figure 4 : A top view of the assembled first ring / outer ring without the cooling element; Figure 5a : A top perspective view of the first ring / outer ring with an inserted LED circuit board and without the cooling element; Figure 5b :according to Figure 5a A top view of the first ring / outer ring; Figure 6a :according to Figure 1 A top perspective view of the second ring / inner ring of the first embodiment; Figure 6b :according to Figure 6a A top view of the second ring / outer ring; Figure 6c : The basis of the second ring / outer ring Figure 6b The view arrow in VI is a side view of C; Figure 7a :according to Figure 1A perspective view of a first embodiment of the present invention in assembled form with the second ring / inner ring in a loose position; Figure 7b :according to Figure 7a A top view of a schematic diagram of without a cooling body; Figure 7c :according to Figure 7b A cross-sectional view along the section line VII C-VII C in FIG. 1 , including the cooling body; Figure 7d :according to Figure 7b A cross-sectional view along the section line VII D-VII D in FIG. 1 without a cooling body; Figure 8a :according to Figure 1 A first embodiment of the invention in assembled form with the inner ring in the locked position and without the cooling body; Figure 8b :according to Figure 1 A top view of a schematic diagram of; Figure 8c :according to Figure 8b A sectional view along section line VIII C-VIII C in FIG. Figure 8d :according to Figure 8b A sectional view along section line VIII D-VIII D in FIG. Figure 8e :according to Figure 8b A sectional view along section line VIII E-VIII E in FIG. Fig. 9 : A perspective exploded schematic diagram of a second embodiment of the present invention; Fig.10a :according to Fig. 9 A top perspective view of the first ring / inner ring of the second embodiment; Fig.10b :according to Fig.10c A top view of a schematic diagram of; Fig.10c : Bottom view of the first ring / inner ring of the second embodiment without contact pieces and without tensioning elements; Fig.11a :according to Fig.10c Schematic diagram of a contact piece with a tensioning element; Fig.11b :Basis of the first ring / outer ring Fig.11a A sectional view along the section line XI B-XI B in FIG. Fig.11c :Basis of the first ring / outer ring Fig.11a A sectional view of the section line XI C-XI C in FIG. Fig.12a : A top view of the assembled first ring / outer ring of the second embodiment of the present invention; Figure 12b :according to Fig.12a A schematic diagram of a device with an inserted adapter frame; Fig.13a : A schematic diagram of a second embodiment of the present invention, with an inserted LED circuit board, without a cooling body and without an inner ring; Fig.13b :according to Fig.13a A top view of a schematic diagram of; Fig.13c : An alternative schematic diagram of a second embodiment of the present invention with an inserted LED circuit board and an adapter frame, without a cooling body and without an inner ring; Fig.13d :according to Fig.13c A top view of a schematic diagram of; Fig.14a :according to Fig. 9 A top perspective view of the second ring / inner ring of the second embodiment of the present invention; Fig.14b :according to Fig.14a A top view of a schematic diagram of; Fig.14c : The basis of the second ring / inner ring Fig.14b A sectional view along section line XIV C-XIV C in FIG. Fig.15a Based on the perspective view from above Fig. 9 A second embodiment of the invention, which in the assembled state does not have a cooling body; Fig.15b :according to Fig.15a A top view of a schematic diagram of; Fig.15c :according to Fig.15b Sectional view along section line XV C-XV C. DETAILED DESCRIPTION

[0048] exist Figure 1 In FIGS. 8 to 8, the first embodiment of the present invention is generally provided with reference numeral 100. The second embodiment of the present invention is Figure 9 to 15 and is provided with reference numeral 200 as a whole. Embodiment 100 / 200 of the present invention has a series of identical components. If identical or identically acting components are used, these components are also known and differ only in that they are either assigned to the number range 100 or to the number range 200. Therefore, as long as identical or identically acting components are involved, the statements made for the first embodiment always also apply to the second embodiment 200.

[0049] according to Figure 1 , a first embodiment of the invention comprises an attachment element which is provided as a whole with reference numeral 110. The attachment element 110 consists essentially of a first ring 111 and a second ring 112. The first ring 111 is also referred to as an outer ring. The second ring 112 is referred to as an inner ring. However, this is mainly because, in this embodiment, the rings are arranged nested in one another and thus an outer layer is produced for the first ring 111 and an inner layer is produced for the second ring 112. However, the attachment element 110 / 210 according to the invention of the first embodiment 100 and of the second embodiment 200 is not limited to this specific - although advantageous - embodiment with an outer ring 111 and an inner ring 112.

[0050] Furthermore, the attachment element 110 has an attachment contact 113 and a tensioning element 114 which is designed as a tensioning spring 115 .

[0051] The attachment element 110 cooperates with a circuit board 116 on the one hand, which carries an LED 117 as an illuminant. On the other hand, the attachment element 110 cooperates with a support 118, which is configured as a heat sink 119. However, instead of the heat sink 119, the support 118 can also constitute any type of lamp component.

[0052] The attachment element 110 is fastened to the heat sink 119 by screwing the screw 120 . In this case, the attachment element 110 holds the LED printed circuit board 116 between the attachment element and the heat sink 119 .

[0053] Figure 2a The outer ring 111 is shown in a perspective view of the upper side of the outer ring. The outer ring 111 first has a base plate 121. The base plate 121 has a slot 122. The slot 122 defines an inner contour 123 of the outer ring 111, which is divided into a rectangular, in particular square, insertion contour 124 and an engagement contour 125. The engagement contour 125 transitions into the insertion contour 124.

[0054] In the present example, the insertion contour 124 is rectangular, in particular square, since this exemplary embodiment uses a correspondingly rectangular, in particular substantially square LED circuit board 116 in order to explain the function of the attachment element 110 in more detail. Different circuit board shapes lead to different insertion contours 124 .

[0055] The annular collars 126 lie flat on the bottom plate 121. These annular collars 126 surround the slits 122 and first have receiving holes 126a for screwing the bolts 120. Figure 1 It can be seen that the receiving opening 126 a also serves to receive a retaining section 127 of the tensioning spring 115 , wherein the retaining section 127 is penetrated by the screw bolt 120 in order to fix the tensioning spring 115 in the outer ring 111 .

[0056] A through-channel 128 for the tensioning spring arm 129 extends from the receiving opening 126a in the circumferential direction. A support mandrel 130 is arranged in the through-channel 128 and serves as a positioning aid for a correctly positioned arrangement when the tensioning spring 115 is mounted.

[0057] The annular clip 126 is embedded in two mutually opposite peripheral sections and thus forms wall hook receptacles 131. Each wall hook receptacle 131 has a centering surface 132 which is formed to descend obliquely in the direction of the center of the outer ring 111.

[0058] Figure 2b is based on Figure 2a The top view of the first ring 111 of FIG. 1 clearly shows that the annular collar 126 has a substantially circular inner contour. However, the circular inner wall sections 133 of the annular collar 126 extending around the center point M on a common radius are first penetrated by stop grooves 134 that are diametrically opposite to each other. These inner wall sections have end stop surfaces 135 formed by the inner peripheral wall of the annular collar 126.

[0059] In addition, the circular inner wall section 133 of the annular collar 126, which extends on a common radius around the center point M, is also penetrated by diametrically opposite receptacles 136, which are for tensioning bolts 137 of the second ring 112 or of the inner ring 112. The tensioning bolts 137 will be discussed later. These receptacles 136 are arranged offset in the circumferential direction with respect to the stop grooves 134.

[0060] exist Figure 2c In the view of the underside of the first ring 111 or the outer ring 111 in FIG. 1 , it can be seen that the first ring or the outer ring forms two attachment chambers 138. In this embodiment, the attachment chambers 138 are open in the direction of the heat sink 119 or the support 118, that is, opposite to the light emission direction L of the LED 117, so that the attachment contact 113 (see FIG. 1 ) can be inserted there. Figure 1 ). The attachment contact 113 is held in the attachment chamber 138, for example, by frictional closure or form closure, in particular by snap-in. The attachment chamber 138 is then accessible for contacting a supply contact (not shown) carried by the second ring 112 or the inner ring 112, in order to establish an electrical connection with the contact area 139 of the LED circuit board 116 when the first ring 111 and the second ring 112 are subsequently connected.

[0061] Figure 3a Show according to Figure 2c , i.e. a schematic diagram of the first ring 111 in a bottom view. However, in this schematic diagram, the attachment contact 113 is placed in the attachment chamber 138. It is conceivable that after the attachment contact 113 is assembled, the lower side of the outer ring 111 is provided with a closure cover (not shown) in order to protect the attachment contact 113 in particular from contact with the support 118 or the heat sink 119. In this way, it is ensured that no electrical connection can be established between the attachment contact 113 and the support 118. However, if the attachment contact 113 is sufficiently spaced apart from the support 118 and is supported in the attachment chamber 138 in a manner that prevents loss, such a closure cover is not required.

[0062] At this point it should be noted that the first embodiment 100 provides for a structural separation of the attachment contact 113 from the supply contact (not shown). Such a separation is determined by the specific embodiment of the first embodiment, but is not necessarily required for a successful implementation of the inventive concept. It can be easily considered that the attachment contact 113 and the supply contact (not shown) form a unified component, which is either carried by the first ring 111 or by the second ring 112.

[0063] Figure 3b Show according to Figure 3a The section line passes through the attachment contact 113, so that the structure of the attachment contact for attaching an attachment conductor (not shown) can be explained. The attachment contact 113 has a contact cage 140, the bottom of which is formed by a contact track 141. The contact track 141 is formed with a contact protrusion 142 (see Figure 3a ), which contact projection is used to electrically connect to a supply contact (not shown). The contact side wall 143 carries a contact cover 144, from which a clamping leg 145 protrudes. Here, the contact side wall 143 connects the contact track 141 and the contact cover 144. The clamping leg 145 is arranged on the side opposite to the contact projection 142. The clamping leg 145 is located in a contact input end 146, which is arranged downstream of the attachment channel 147 formed by the outer ring 111 in the conductor insertion direction X.

[0064] The attachment chamber 138 can then be seen in the sectional view, which is open towards the underside U of the first ring 111. The recessed portion of the annular collar 126, which is open towards the upper side O and serves to form the wall hook receptacle 131, can then be seen.

[0065] Figure 4 Now a top view of the assembled first ring 111 is shown. The screw bolts 120 pass through the corresponding retaining sections 127 of the tensioning springs 115, which are located in the receiving holes 126a. The screw bolts 120 engage in threaded receptacles (not shown) of the heat sink 119 and thus anchor the first ring 111 to the heat sink 119.

[0066] Figure 4 This represents by way of example a possible preassembly to be achieved. This assembly unit, which is not yet provided with an LED printed circuit board 116 , can be stored as a universal part for a certain type of luminaire so that it can be equipped with the LED printed circuit board to be used later when ordering in order to personalize the luminaire.

[0067] Figure 5a The assembled first ring 111 is shown in a perspective view of the upper side of the first ring. For the sake of clarity, the schematic representation of the heat sink 119 is omitted. Figure 5a In the embodiment of the present invention, in the context of assembling the luminaire, the LED printed circuit board 116 has been inserted into the outer ring 111. It is obvious here that the insertion contour 124 is adapted to the size of the printed circuit board 116. By means of the engagement contour 125, the LED printed circuit board 116 can be removed not only with the aid of a removal tool (not shown), but also without tools.

[0068] In the context of the first embodiment 100, the insertion contour 124 is adapted to the largest conceivable LED circuit board 116. Smaller LED circuit boards or LED circuit boards shaped in a different manner can be used by inserting an adapter frame (not shown) in the first embodiment 100 into the insertion contour 124, the inner contour of which in turn accommodates the outer contours of the different LED circuit boards 116. In this way, the outer ring 111 is designed as a universal component for a plurality of LED circuit boards 116. In contrast to this description, it is conceivable that the insertion contour 124 is not adapted to the LED circuit boards 116 at all, but is only designed to accommodate an adapter frame, which is then respectively assigned to one LED circuit board 116.

[0069] Figure 5b Again, the top view shows the Figure 5aThe situation described. It can be seen from this view that the LED circuit board 116 is held almost without play by the insertion contour 124 in a direction parallel to its support surface on the support 118. In this embodiment, a certain fit gap is provided in order to insert the LED circuit board 116 into the insertion contour 124. However, it is conceivable to achieve a frictional or positive lock by means of a locking element or a spring element, which is preferably configured to be integrally bonded to the first ring 111, in particular to the base plate 121 of the first ring.

[0070] Figure 6a The inner ring 112 , ie the second ring 112 , of the attachment element 110 of the first embodiment 100 of the invention is shown in a perspective view from above.

[0071] The inner ring 112 is formed by an annular wall 148, which surrounds a central LED recess 149. The annular wall 148 descends from its upper side O in the direction of its lower side U, so that the LED recess 149 is surrounded by a funnel-shaped embedded annular wall section 150. The funnel-shaped embedded annular wall section 150 prevents light shading of the light emitted by the LED 117.

[0072] The annular wall 148 is designed to be substantially circular in its outer circumference. It carries outwardly projecting actuating handles 151 which are arranged diametrically opposite one another and serve to anchor the inner ring 112 in the outer ring 111 by a locking movement.

[0073] The ring wall 148 is configured to have stop elements 152 that also protrude outward and are diametrically opposed to each other. Each stop element 152 has a stop surface 153 that is oriented parallel to the light emission direction L or perpendicular to the arrangement surface of the LED circuit board 116 on the support 118. Each stop surface 153 cooperates with the end stop surface 135 of the stop groove 134 of the outer ring 111 (see Figure 2b or Figure 4 ).

[0074] The annular wall 148 then carries two tensioning receiving elements 154 on its outer periphery, which are diametrically opposed to one another and protrude outward from the annular wall 148. Specifically, these tensioning receiving elements are designed as tensioning bolts 137. The tensioning receiving elements 154 or the tensioning bolts 137 cooperate with the tensioning spring 115 or the tensioning spring arms 129 of the tensioning spring to tension the inner ring 112 against the LED circuit board 116. That is, the tensioning force acts in the insertion direction E of the LED circuit board 116 into the outer ring 111 or against the light emission direction L.

[0075] Finally, in the first embodiment 100 of the invention, the inner ring 112 carries two mutually diametrically opposed locking elements 155 on its outer circumference and in turn in an outwardly projecting manner. In the present embodiment, the locking elements 155 serve as couplings in order to fix the inner ring 112 on the outer ring 111. Each locking element 155 is designed as a locking tab 156, which extends in the circumferential direction of the inner ring 112.

[0076] like Figure 6a As shown, the actuating handle 151 , the stop element 152 , the tensioning receiving element 154 and the locking element 155 are arranged offset relative to one another in the circumferential direction.

[0077] Figure 6b Again, the top view of the inner ring 112 shows the Figure 6a In this view it can be seen again very clearly that the aforementioned components are arranged in fact diametrically opposed to one another and are arranged offset relative to one another in the circumferential direction.

[0078] Figure 6c Show according to Figure 6b The inner ring 112 of the view arrow VI C in FIG. First of all, it is noticeable that the inner ring 112 has a collar protrusion 157 on its lower side, which protrudes opposite to the light emission direction L, that is, in the direction of the support 118. The collar protrusion 157 surrounds the LED 117 and lies flat on the LED circuit board 116. In a preferred embodiment, the collar protrusion is produced in an interference fit manner and can be deformed elastically or plastically. In this way, production tolerances and material tolerances between the individual components of the attachment element 110, the LED circuit board 116 and the support 118 can be compensated. As a result, the pressing force applied to the LED circuit board 116 by the inner ring 112 in the direction of the support 118 is ensured in any case. In this way, optimal heat transfer from the LED circuit board 116 to the support 118 or the heat sink 119 is ensured.

[0079] In order to transmit the pressing force to the LED circuit board 116 via the inner ring 112, the tensioning bolt 137 of the inner ring 112 and the tensioning spring 115 (see Figure 1 ) work together. To this end - as will be explained later - after the inner ring is inserted into the outer ring 111, the inner ring 112 is rotated in the locking direction R. As a result, Figure 6c The tensioning bolt 137 shown in FIG. 1 touches the tensioning spring 115, more precisely the tensioning spring arm 129. Each tensioning spring arm 129 is initially designed—starting from the holding section 127—in an inclined manner in the insertion direction E or in the direction of the support 118. The free end of the tensioning spring arm 129—as in particular at Figure 1As can be seen in FIG. 1 , the spring arm 129 is bent in the light emission direction L, ie, pointing away from the support 118 . Thus, each free end of the tensioning spring arm 129 forms an anchoring lug 158 .

[0080] Extending in the locking direction R, the tensioning bolt 137 is first provided with an abutment bevel 159 which extends in the direction of the upper side O of the inner ring 112. The tensioning bolt is adjoined downstream in the locking direction R by a support surface 160 which descends toward the lower side U and transitions into a support surface 161 which has a parallel, i.e. horizontal, orientation to the arrangement surface. In this way, the tensioning bolt 137 forms an anchoring projection 162, in particular by means of the abutment bevel 159 and the support surface 160 adjoining the abutment bevel.

[0081] Figure 7a Shown in assembled form Figure 1 100 is shown as an exploded schematic diagram in FIG. The heat sink 119 carries an outer ring 111, which is fixed to the heat sink 119 by screwing screws 120. The LED circuit board 116 is inserted into the outer ring 111. The inner ring 112 is placed on the LED circuit board 116 and accommodates the LED 117 in the LED recess 149 of the inner ring.

[0082] The actuating handle 151 is located in the wall hook receptacle 131, wherein the centering tab 163 (see Figure 6c ) cooperates with the centering surface 132 on the underside of the actuating handle 151. The tensioning bolt 137 is located in a receptacle 136 provided for this purpose. The stop element 152 is located in the stop groove 134, wherein the stop surface 153 and the end stop surface 135 are spaced apart from each other.

[0083] exist Figure 7a In the embodiment shown in FIG. 1 , the inner ring 112 is in its loose position, i.e. not yet anchored in the outer ring 111. In this position, the inner ring can be easily removed from the outer ring 111 in the direction of the light emission direction L. In order to anchor the inner ring 112 in the outer ring 111, a rotation in the locking direction R is now required, which will be discussed later.

[0084] Figure 7b In the top view, the Figure 7a Schematic diagram of FIG. 1 , wherein the heat sink 119 is not shown here for the sake of clarity.

[0085] Figure 7c The first embodiment 100 is based on Figure 7b Sectional view of section line VII C-VII C in FIG. Figure 7bDifferently, the heat sink 119 is shown in this cross-sectional view. From this schematic diagram, it can be seen how the outer ring 111 surrounds the LED circuit board 116 and how the LED circuit board 116 is covered by the second ring 112. In particular, Figure 7c It can be seen how the collar projection 157 surrounds the LED 117 and is located on the upper side of the circuit board 116, that is, on the side facing away from the heat sink 119. The LED circuit board 116 rests on the heat sink 119. This results in full-surface contact between the underside of the LED circuit board 116 and the contact surface of the heat sink 119, so that a good heat transfer from the circuit board 116 to the heat sink 119 is ensured. In addition, two attachment channels 147 can be seen in the outer ring 111, which extend into the attachment chambers 138 (not shown here) and are used to introduce attachment conductors (not shown) into the corresponding attachment contacts 113.

[0086] Figure 7d The first embodiment 100 and in particular the attachment element 110 therein are shown along Figure 7b . The interaction of the centering surface 132 of the outer ring 111 and the centering tab 163 of the actuating handle 151 is schematically shown there. The two surfaces are designed to be lowered in the direction of the center point M of the outer ring 111 and in the direction of the LED circuit board 116 or in the direction of the heat sink 119 (not shown), and slide against each other when the inner ring 112 is inserted into the outer ring 111. In this way, it is ensured that the inner ring 112 has already undergone a substantially centered, coaxial orientation when it is inserted into the outer ring 111.

[0087] and Figure 7a similar, Figure 8a 1 shows a schematic perspective view of an assembled first embodiment 100 of the present invention, wherein the heat sink 119 is not shown here for the sake of clarity. Figure 8a In contrast, the inner ring 112 has moved into its locked position in the locking direction R. The locking movement ends when the stop surface 153 of the stop element 152 of the inner ring 112 strikes the end stop surface 135 of the stop groove 134 of the outer ring 111. Figure 8a It can already be guessed how the tensioning bolt 137 reaches under the tensioning spring arm 129 of the tensioning spring 115 by the locking movement in the locking direction R. Only in this way can the mechanical fastening of the inner ring 112 in the outer ring 111 be achieved, so that no additional retaining elements on the side of the first ring 111 or no coupling elements on the side of the second ring 112 are required.

[0088] Figure 8b In the top view, the Figure 8a Here we also show again the schematic diagram of Figure 8a Describe the situation.

[0089] Figure 8c 1 is a sectional view of the first embodiment 100 according to the section line VIII C-VIII C in FIG. B. Here too, for the sake of clarity, the heat sink 119 is not shown. According to this figure, especially when looking to the left side of the figure, it can be seen that by rotating the inner ring 112 in the locking direction R, the actuating handle 151 is now arranged in the area of ​​the receptacle 136 for the tensioning bolt 137, and the tensioning bolt 137 has been rotated in the locking direction R, i.e. relative to the inner ring 112. Figure 8c The drawing plane moves further back.

[0090] Figure 8d The first embodiment is shown along Figure 8a . This schematic diagram shows how the tensioning bolt 137 is located below the tensioning spring arm 129 of the tensioning spring 115 in the locked position of the inner ring 112. During the locking process, the anchoring lug 158 performs an overtravel movement. In this overtravel movement, the anchoring lug 158 slides over the anchoring projection 162. In the locked position of the inner ring 112, the anchoring lug 158 lies flat on the supporting surface 161 of the tensioning bolt 137 and thus presses the inner ring 112 against the LED circuit board 116. In this way, a contact pressure between the LED circuit board 116 and the supporting surface of the support 118 or the heat sink 119 is ensured, which optimizes the heat transfer from the LED circuit board 116 to the heat sink 119.

[0091] Figure 8e The first embodiment 100 is based on Figure 8b Sectional view of section line VIII E-VIII E in FIG. Figures 8a to 8d As in the example, the heat sink is not shown here either for the sake of clarity.

[0092] First, from Figure 8e It can also be guessed that the tensioning bolt 137 has been moved below the tensioning spring arm 129 by rotating in the locking direction R. Here, the tensioning spring arm 129 is deflected upwards under the formation of a restoring stress and therefore now exerts a tensioning force on the inner ring 112 in the direction of the heat sink 119 (not shown) against the light emission direction L.

[0093] It has already been mentioned that the mechanical fixing of the inner ring 112 in the outer ring 111 is achieved only by pushing the tensioning bolt 137 down below the tensioning spring arm 129. However, in the first embodiment 100 shown here, the invention takes a different approach. As already mentioned above in the description of the inner ring 112, the inner ring 112 has a coupling element in the form of a locking tab 156.

[0094] The inner wall section 133 forms locking chambers 164 in a region arranged downstream of the receptacle 136 in the locking direction R. These locking chambers 164 are open in the direction of the center of the outer ring 111, or in other words, form an entry in the direction of the outer circumference of the outer ring 111. Just as the tensioning bolt 137 is moved under the tensioning spring arm 129 in a bayonet-type locking manner, when the inner ring 112 is moved in the locking direction R, the locking elements 155 of the inner ring 112 also sink into the locking chambers 164 in a bayonet-type locking manner.

[0095] In the first exemplary embodiment 100 of the invention shown here, the inner ring 112 is therefore fixed in the outer ring 111 in a form-fitting manner by the interaction of the locking elements 155 and the locking chambers 164 .

[0096] exist Figures 9 to 15c 2 shows a second embodiment 200 of the present invention. As already mentioned at the beginning, a number of components are identical or function identically to the corresponding components of the first embodiment 100. Accordingly, although the reference numerals are selected in the number range 200, the tens digit is identical between the first embodiment 100 and the second embodiment 200.

[0097] Fig. 9 First, an exploded schematic view of a second embodiment 200 is shown. The second embodiment 200 firstly also comprises an attachment element 210, which comprises a first ring / outer ring 211 and a second ring / inner ring 212. In addition, an attachment contact 213 and a tensioning element 214 are part of the attachment element 210 of the second embodiment 200. The first ring 211 also has a base plate 221, which, however, in this embodiment not only forms the inner contour 123, but also has a supplementary function. This will be discussed later.

[0098] The attachment element of the second embodiment 200, which is provided with reference numeral 210 as a whole, is also used to arrange the circuit board 216 with the LED 217 arranged thereon on a support 218, in particular a heat sink 219. In this embodiment 200 of the invention, the attachment element 210 is also fastened to the heat sink 219 by means of screwing screws 220. Fig. 9 The exploded schematic view of FIG. 21 shows an alternative LED circuit board 216 a with an alternative LED 217 a . An adapter frame 265 is provided for mounting the alternative LED circuit board in the attachment element 210 .

[0099] Fig.10a The outer ring 211 or the first ring 211 is shown in a perspective view of the upper side O of the outer ring or the first ring. The bottom plate 221 of the outer ring 211 is not shown.

[0100] The annular collar 226 of the outer ring 211 is also provided with a receiving hole 226a, through which a screw bolt 220 (not shown) passes, in order to fasten the outer ring 211 to the heat sink 219. The holding channel 266 formed by the annular collar 226 and the twist bolt 267 (see, for example, Fig. 9 ) which acts together with the twist pin, which is arranged on the bottom plate 221 and extends in the light emission direction L.

[0101] The annular collar 226 then forms positioning grooves 268 that are diametrically opposed to one another. These positioning grooves are formed as recesses in the otherwise substantially circular inner peripheral wall section 233 of the annular collar 226 in the direction of the outer periphery. The positioning grooves 268 are then open toward the upper side O of the annular collar 226, so that these positioning grooves can accommodate components against the light emission direction L.

[0102] The annular collar 226 is provided with receiving grooves 270 open toward the top at locations diametrically opposite to each other for arranging the tensioning elements 214, which are each configured as latching springs 269 in this second embodiment. These receiving grooves also form recessed recesses of the inner peripheral wall section 233 in the direction of the outer periphery. The fixing slots 271 are arranged downstream of the receiving grooves 270 in the direction of the outer periphery.

[0103] Fig.10b Again, the top view shows Fig.10a The outer ring 211. It can be seen from this schematic diagram in particular that the inner peripheral wall section 233 of the annular collar 226 is also substantially circular in shape.

[0104] Fig.10c The outer ring 211 is shown in a bottom view. It can be seen in particular from this schematic diagram that the outer ring 211 also forms an attachment chamber 238 on its underside. The attachment chamber 238 is open downward, that is, in the direction of the heat sink 219, because the bottom plate 221 is not mounted. In this way, the attachment contact 213 can be placed in each attachment chamber 238 when the bottom plate 221 is not mounted. In the illustrated embodiment 200, the attachment chamber 238 is arranged adjacent to the positioning groove 268 and is open toward the adjacent positioning groove 268.

[0105] Fig.10c It is also shown that the fixing slot 271 passes through the annular collar 226 downward.

[0106] Fig.11a Show according to Fig.10c , but here the attachment contact 213 is located in the attachment chamber 238 and the locking springs 269 are respectively placed in the receiving grooves 270.

[0107] Fig.11b It is the basis of the outer ring 211 Fig.11a 2. A sectional view of the section line XI B-XI B in FIG. According to this schematic diagram, it can be seen that the latch spring 269 first constructs a spring arm 272 with a latch cam 273. The spring arm 272 is connected to the retaining leg 275 via an intermediate piece 274. In summary, the latch spring 269 has a substantially U-shaped configuration in cross section.

[0108] The latching spring 269 is pushed into the fixing slot 271 by means of its retaining leg 275, wherein the spring arm 272 with the latching cam 273 is located in the receiving groove 270. In this embodiment, the retaining leg 275 has a slot 276, which hooks back into a projection 277 located in the fixing slot 271 in order to ensure a positive locking fixation of the latching spring 269 in the outer ring 211. Such a positive lock is not necessary. A friction lock is also conceivable.

[0109] Fig.11c The outer ring 211 is shown based on Fig.11a 2. A sectional view of the section line XI C-XI C in FIG. Here, the section line particularly passes through the attachment contact 213 in order to explain the structure of the attachment contact 213.

[0110] The attachment contact 213 is constructed substantially in the same manner as the attachment contact 113 of the first embodiment 100. Here, first, the attachment contact 213 is also formed by a contact cage 240, which forms a contact track 241 on its lower side. The contact track 241 is connected to a contact cover 244 via a contact side wall 243 extending upward. The contact cover 244 carries a clamping leg 245, which extends into a contact input 246 and forms a clamping position for connecting an attachment conductor to be pushed in. The contact input 246 can be reached via an attachment channel 247 not shown. The contact track 241 carries a contact projection 242 on its side facing away from the clamping leg 245, which extends until it reaches the positioning groove 268.

[0111] Now, Fig.12a The top view of the assembled and mounted outer ring 211 is shown, wherein the heat sink 219 is omitted for a better overview. The screw bolts 220 hold the outer ring 211 on the heat sink 219 (not shown). The bottom plate 221 is placed on the outer ring 211 from below, wherein the twist pins 267 penetrate into the holding channels 266 and are anchored there in a friction-locking manner.

[0112] The bottom plate 221 has a slot 222, the inner contour 223 of which forms a rectangular, substantially square insertion contour 224. The insertion contour 224 is interrupted by two mutually opposite engagement contours 225, wherein the insertion contour 224 also holds the circuit board 216 (not shown here) parallel to the arrangement surface of the circuit board on the heat sink 219, and the engagement contour 225 is used to remove the circuit board 216 from the outer ring 211 without tools or with the aid of suitable tools. It is worth mentioning that in this embodiment 200, the insertion contour 224 is provided with clamping cams 278. These clamping cams extend into the slot 222.

[0113] Fig.12a It is also shown that the latching cam 273 of the latching spring 269 projects into the annular space of the outer ring 211 and the contact protrusion 242 is located in the positioning groove 268 .

[0114] Figure 12b A top view of the assembled outer ring 211 is also shown, and first the outer ring 211 is shown with Fig.12a The adapter frame 265 is located in the cutout 222 of the base plate 221 , which accommodates the insertion contour 224 of the base plate 221 in terms of shape, but reduces it: the adapter frame 265 also carries clamping lugs 278 a , which function similarly to the clamping lugs 278 of the base plate 221 .

[0115] Fig.13a The mounted outer ring 211 is shown in a perspective top view. Fig.13b Shown in Fig.13a A top view of the outer ring 211 is shown in FIG. Fig.13a and 13b Shows that basically Fig.12a However, in both figures, an LED circuit board 216 is inserted, which carries an LED 217. A contact area 239 is arranged on the LED circuit board 216. The LED 217 is supplied with power via the contact area, which is provided via the attachment contact 213 and is guided to the LED 217 via a supply contact not shown.

[0116] In both figures it can be seen that the clamping lugs 278 hold the LED printed circuit board 216 in the insertion contour 224 without play and with a friction fit, wherein it can also be seen here that the LED printed circuit board 216 can be released from the base plate 221 via the engagement contour 225 .

[0117] exist Fig.13c and 13dIn the embodiment, the adapter frame 265 is first inserted into the insertion contour 224 of the base plate 221. The adapter frame 265 in turn holds the replacement circuit board 216a, which is obviously significantly smaller than the replacement circuit board. Fig.13a and 14b The circuit board 216 in the embodiment of FIG. Fig.13a and 13b When, from Fig.13c and 13d It becomes clear here that the alternative printed circuit board 216 a is also held in the same manner as the printed circuit board 216 , namely by means of a friction fit by means of clamping cams of the adapter frame 265 .

[0118] It should be noted here that, as described above, the adapter frame 265 or the principle of adapting circuit boards 216, 216a of different sizes can also be easily applied in the first embodiment 100. Similarly, it should be noted for the second embodiment 200 described here that the base plate 221 does not necessarily have to be adapted to the circuit board 216. The base plate 221 of the second embodiment 200 can be configured as a receiving contour for the adapter frame 265, wherein then only the adapter frame 265 corresponds to one or more LED circuit boards 216, 261a.

[0119] This rectangular, in particular square, insertion contour is also caused by the exemplary LED circuit board 216, 261a or 116 shown in the first embodiment 100. However, other circuit boards 216, 261a or 116 may require different insertion contours 224, 124. These insertion contours can be easily realized by the base plate 221, 121 or a suitable adapter frame 265.

[0120] Fig.14a The inner ring 212 or second ring 212 of the second embodiment 200 is shown. The inner ring 212 comprises an annular wall 248, which has a central LED recess 249. The preferably surrounding annular wall section 250 descends from the upper side O of the inner ring 212 toward the lower side U and is designed in a funnel-shaped manner in the direction of the center of the inner ring 212. In this way, shadowing of the light emitted by the LED 217 by the annular wall 248 is avoided.

[0121] The annular wall 248 carries two mutually oppositely opposite positioning pins 279 on its outer periphery. These positioning pins extend outwards, ie away from the center point M, and serve for the orientation of the correct positioning of the inner ring 212 in the outer ring 211.

[0122] In the second embodiment 200, the inner ring 212 has diametrically opposed latching projections 280 which are arranged on the outer circumference of the annular wall 248. These latching projections combine the functions of a tensioning element and a locking element in one component.

[0123] Fig.14b In the top view, the Fig.14a According to the accompanying drawing, it can be clearly seen that not only the locking projection 280 but also the positioning bolt 279 extends outward from the annular wall 248.

[0124] Fig.14c It is a sectional view of the inner ring 212 along the section line XIV C-XIV C. The figure shows in particular the latching projection 280, which is provided with a sliding surface 281 facing the lower side U and extending obliquely upward and outward, and a locking surface 282 extending in the opposite direction.

[0125] Fig.15a The second embodiment 200 is shown in assembled form, but for the sake of clarity the heat sink 219 is not shown. The inner ring 212 is inserted into the outer ring 211. The LED 217 is located in the LED recess 249 of the second ring 212. The positioning bolts 279 of the inner ring 212 are located in the positioning grooves 268 and thus ensure a correctly positioned arrangement of the inner ring 212 in the outer ring 211. In this regard, it is particularly important in the embodiment 200 that the latching projections 280 of the inner ring 212 are aligned with the latching springs 269 of the outer ring 211.

[0126] Fig.15b In the top view, the Fig.15a Therefore, for Fig.15a The interpretation also applies to Fig.15b .

[0127] Fig.15c The second embodiment 200 is based on Fig.15b According to this figure, the mechanical fastening of the inner ring 212 in the outer ring 211 can be explained as follows: In the insertion direction E, i.e., against the light emission direction L, thus in the direction of the LED circuit board 216 or in the direction of the heat sink 219 (not shown), the inner ring 212 is inserted into the outer ring 211. Here, the latching projection 280 presses the latching projection 273 of the latching spring 269, which in its rest position extends into the annular space of the outer ring 211. Here, the latching projection 273 performs an overtravel movement above the latching projection 280, which is caused by the restoring elasticity of the latching spring 269. In the final position of the inner ring 212 and the outer ring 211, the latching projection 273 hooks back on the latching projection 280 and thus prevents the inner ring 212 from loosening in the direction of the light emission direction L, i.e., in the vertical direction.

[0128] In addition, the beveled pairing between the latching projections 273 and the respectively associated latching protrusions 280 transfers the tensioning force acting in the insertion direction E from the latching spring 269 to the inner ring 212. In this way, the latching spring 269 serves as a tensioning element and the latching protrusions 280 serve as tensioning receiving elements in order to tension the inner ring 212 against the circuit board 216 and press the circuit board against the inner ring 212. Fig.15c The heat sink 219 is not shown in the figure. In this way, the best heat transfer from the LED circuit board 216 to the heat sink 219 is ensured.

[0129] It should also be noted that in the embodiments 100 and 200 of the present description, annular or substantially annular outer rings 111 and 211 and inner rings 112 and 212 are shown. However, the circular shape is by no means necessary for the implementation of the present invention. This also applies to the first embodiment 100, in which the inner ring 112 is rotated in the outer ring 111.

[0130] In the embodiments 100 and 200, the screw bolts 120 and 220 are also used to fasten the attachment elements 110 and 210. Of course, it is conceivable to use other fastening means to fix the respective attachment elements 110 and 210.

[0131] Reference numerals list 100 First Implementation Method 110 Attachment elements 111 First Ring / Outer Ring 112 Second Ring / Inner Ring 113 Attaching contacts 114 tensioning element 115 tension spring 116 Circuit Board 117 LED 118 Support 119 cooling body 120 Tighten the bolts 121 Bottom plate 122 Rift 123 Inner contour 124 Insert Outline 125 scarf profile 126 Ring clamp 126a Receiving hole 127 Keep section 128 Through Channel 129 Tension spring arm 130 Support mandrel 131 Wall hook storage part 132 Centering surface 133 Inner wall section 134 Stop groove 135 End stop surface 136 Receptacle for bolt 137 Tensioning bolt 138 Attachment Chamber 139 Contact Zone 140 Contact Cage 141 contact track 142 contact protrusion 143 Contact side wall 144 Contact cover 145 Clamping Legs 146 Contact input terminal 147 Attachment Channel 148 Ring Wall 149 LED groove 150 Ring wall section 151 Joystick 152 Stop element 153 Stop surface 154 tensioning receiving element 155 Locking element 156 Locking tab 157 collar protrusion 158 Anchor lug 159 Touching the Slope 160 Support surface 161 Support surface 162 Anchoring protrusion 163 Centering piece 164 Lock Chamber R Lock direction E Insert direction L Light emission direction M Midpoint U Lower side O Upper side X conductor insertion direction 200 Second Implementation Method 210 Attachment element 211 First Ring / Outer Ring 212 Second Ring / Inner Ring 213 Attaching contacts 214 tensioning element 216 Circuit Board 216a Replacement circuit board 217 LED 217a Replacement LED 218 Support 219 cooling body 220 Tightening bolts 221 Bottom plate 222 Rift 223 Inner contour 224 Insert Outline 225 scarf profile 226 Ring Clamp 226a Receiving hole 233 Inner peripheral wall section 238 Attachment Chamber 239 Contact Zone 240 Contact Cage 241 contact track 242 contact protrusion 243 Contact side wall 244 Contact cover 245 Clamping Legs 246 Contact input terminal 247 Attachment Channel 248 Ring Wall 249 LED groove 250 Ring wall section 265 Adapter Frame 266 Keep Channel 267 Twist-Bolt 268 Positioning slot 269 ​​Lock spring 270 Receiving slot 271 Fixed Gap 272 Spring Arm 273 Locking tab 274 Middleware 275 Keep Legs 276 Grooving 277 protrusion 278 Clamping tab 278a Clamping tab 279 Positioning bolt 280 Locking protrusion 281 Sliding surface 282 Locking surface

Claims

1. An attachment element (110, 210) for electrically connecting an LED lighting device, in, The LED lighting device comprises a circuit board (116, 216), wherein the circuit board is provided with a contact area (139, 239) for supplying power to the LED (117, 217). The attachment element has a substantially annular frame, which is configured to cover the circuit board (116, 216) and mechanically hold the circuit board on a placement surface of a support (118, 218). The attachment element has a contact assembly which is supported in the frame and is used to supply power to the LED (117, 217). It is characterized in that The frame is divided into a first ring (111, 211) and a second ring (112, 212), The first ring (111, 211) is configured to surround the circuit board (116, 216) and to hold the circuit board in a parallel direction relative to the arrangement surface of the support (118, 218). The second ring (112, 212) covers the circuit board (116, 216) at least in some areas and is configured to hold the circuit board (116, 216) in a vertical direction relative to a surface of the support (118, 218).

2. The attachment element (110, 210) according to claim 1, characterized in that The first ring (111, 211) has at least one retaining member, The second ring (112, 212) has at least a coupling member, The retaining element and the coupling element cooperate with each other to fasten the second ring (112, 212) to the first ring (111, 211).

3. The attachment element (110, 210) according to claim 1 or 2, characterized in that One of the rings (111 / 211, 112 / 212) is configured to be fixed to the support (118, 218) by means of a fastening device in order to mechanically anchor the circuit board (116, 216).

4. The attachment element (110, 210) according to claim 3, characterized in that Only one of the rings (111 / 211, 112 / 212), preferably the first ring (111, 211), is configured to be fixed to the support (118, 218) by means of a fastening device in order to mechanically anchor the circuit board (116, 216), while the other ring, preferably the second ring (112, 212), is only fastened to the first ring (111, 211) in order to mechanically anchor the circuit board (116, 216).

5. The attachment element (110, 210) according to any one of claims 1 to 3, characterized in that The contact arrangement is formed by at least one supply contact, which is provided for being arranged on a contact area (139, 239) of the printed circuit board (116, 216) for supplying power and for this purpose is in particular designed as a pressure contact, preferably a spring leg.

6. The attachment element (110, 210) according to any one of claims 1 to 3, characterized in that The contact assembly comprises at least one attachment contact (113, 213) for solderless connection of an attachment conductor for powering the LED (117, 217), and in particular serves as a clamping contact for connecting an attachment conductor with the insulation stripped.

7. The attachment element (110, 210) according to claims 5 and 6, characterized in that The contact assembly is carried by only one of the rings (111 / 211, 112 / 212).

8. The attachment element (110, 210) according to claims 5 and 6, characterized in that The contact assembly consisting of the attachment contact (113, 213) and the supply contact is formed by two contact members independent of each other. One of the rings (111 / 211, 112 / 212), in particular the first ring (111, 211), carries the attachment contact (113, 213), Another ring, in particular the second ring (112, 212), carries the supply contact, When the rings (111 / 211, 112 / 212) are joined in the assembled state forming the frame, the attachment contacts (113, 213) and the supply contacts are electrically connected to one another.

9. The attachment element (110, 210) according to any one of the preceding claims, characterized in that The inner contour (123, 223) of the first ring (111, 211) has a stop surface, which is configured to cooperate with an edge edge of the circuit board (116, 216) in order to hold the circuit board in a parallel direction relative to the arrangement surface of the support (118, 218), wherein, for this purpose, the first ring (111, 211) in particular at least partially accommodates the outer contour of the circuit board (116, 216).

10. The attachment element (110, 210) according to any one of the preceding claims, characterized in that The first ring (111, 211) and the second ring (112, 212) are supported in a nested manner, in particular coaxially in a nested manner, wherein the first ring (111, 211) is an outer ring and surrounds the second ring (112, 212) which is designed as an inner ring.

11. The attachment element (110) according to claim 10, characterized in that The inner ring (112) carries at least one locking element (156, 280), by means of which the inner ring (112, 212) is fastened within the outer ring (111, 211).

12. The attachment element (110, 210) according to claim 10 or 11, characterized in that The outer ring (111, 211) has at least one tensioning element (114, 115, 269), in particular a tensioning spring (115), which is configured to hold the inner ring (112, 212) in a tensioned manner in the direction of an LED circuit board (116, 216) located in the attachment element (110, 210) or in the direction of the support (118, 218).

13. The attachment element (110, 210) according to any one of claims 10 to 12, characterized in that The inner ring (112, 212) has at least one tensioning receiving element (154, 137, 280) which interacts with a tensioning element (114, 115, 269) of the outer ring (111, 211) and transmits the tensioning force to the inner ring (112, 212).

14. The attachment element (110) according to any one of claims 10 to 13, characterized in that The inner ring (112) can be inserted into the outer ring (111) in an insertion direction and can be fastened in the outer ring (111) by rotation in a bayonet-like locking manner.

15. The attachment element (110) according to claims 13 and 14, characterized in that The tensioning receiving element (154, 137) engages with the tensioning element (114, 115) by the rotation.

16. The attachment element (110, 210) according to any one of claims 11 to 13, characterized in that The tensioning receiving element (154, 137, 280) and the locking element (155, 137, 262) are formed by a common component.

17. The attachment element (210) according to any one of claims 10 to 13, characterized in that The outer ring (211) forms retaining elements, in particular latching projections (269), which interact with locking elements (280) of the inner ring (112) in order to retain the inner ring (112) in the outer ring (111).

18. The attachment element (210) according to claim 17, characterized in that The retaining element and the tensioning element (269) are formed by the same component.

19. The attachment element (210) according to claims 16 and 18, characterized in that The inner ring (212) is inserted into the outer ring (211) in an insertion direction (E) and is held in the outer ring (211) by a latching connection.

20. The attachment element (110, 210) according to any one of claims 1 to 19, characterized in that The first ring (111, 211) is constructed as a universal component, which can accommodate a plurality of different circuit boards (116, 216), while the second ring (112, 212) is constructed as an individual component, which is used for a specific circuit board or a group of specific circuit boards with a common circuit board geometry or a common LED size.

21. The attachment element (110, 210) according to claim 20, characterized in that An adapter frame is provided, which adapts the inner contour of the first ring (111, 211) to the outer contour of the circuit board (116, 216) in order to ensure that the circuit board (116, 216) is supported in the first ring (111, 211) in a substantially play-free manner.

22. The attachment element (210) according to claim 21, characterized in that The adapter frame is part of the second ring (212) such that the second ring (212) accommodates the circuit board (216).

23. The attachment element according to claim 1, characterized in that Only the first ring has a receiving hole (126a, 226a) for a fastening means (118, 218), Only the first ring (111 / 211) is configured to be fixed to the support (118, 218) by means of a fastening device in order to mechanically anchor the circuit board (116, 216) in a parallel direction relative to the arrangement surface of the support, The first ring (111, 211) has at least one retaining member, The second ring (112, 212) has at least a coupling member, The retaining element and the coupling element cooperate with each other to fasten the second ring (112, 212) to the first ring (111, 211) and mechanically anchor the circuit board (116, 216) in a vertical direction relative to the arrangement surface of the support (118, 218). The second ring (112, 212) can be fixed to the first ring (111, 211) independently of the fixing of the first ring (111, 211) to the support (118, 218).

Images