• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a lighting device comprising a plate-shaped support (8) on which at least one light-emitting diode is arranged and which has electrical contacts for the power supply of the at least one light-emitting diode, releasably secured to the plate-shaped support (8), the heat sink (1) with the plate-shaped support (8) in surface contactable surface, and connecting means (6) for releasably securing the plate-shaped support (8) on the cooling body (1), the connecting means (6) consist of an electrically conductive material and act in the attached to the cooling body (1) state of plate-shaped carrier (8) with the electrical contacts (9) together to connect the at least one light emitting diode to the power supply.
    公开号:AT513328A1
    申请号:T969/2012
    申请日:2012-09-04
    公开日:2014-03-15
    发明作者:
    申请人:Esto Lighting Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a lighting device comprising a plate-shaped support on which at least one light-emitting diode is arranged and which has electrical contacts for the power supply of the at least one light emitting diode, a releasably secured to the plate-shaped carrier heat sink, wherein the heat sink with the plate-shaped carrier in planar contact having engagable surface, and connecting means for releasably securing the plate-shaped support to the heat sink.
    Such a lighting device is e.g. known from DE 202011004439 Ul. As stated therein, modern lighting devices and lamps are increasingly utilizing the favorable radiation characteristics and relatively low electrical power consumption of light emitting diodes. In order to meet the existing requirements with regard to the luminaire design and the achievable light intensity, however, as a rule no individual light-emitting diodes are sufficient, since they normally can only provide the desired illumination intensity in grouped form. Thus, for example, two, three, four or more LEDs can be combined on a common carrier plate or board and installed in a lamp housing, so that the light-emitting front surfaces of the LEDs are arranged parallel to each other and simultaneously form a common radiating surface of the radiator.
    Since modern and high-intensity light-emitting diodes are no longer to be regarded as cold light sources, but rather produce a considerable power loss in the form of radiated heat loss, sufficient heat dissipation must be ensured, otherwise the service life will be reduced. · · · · · · · ············································ .. 2.:. the light-emitting diodes suffers. To dissipate this heat loss effectively, the carrier plates or boards are suitable, which can be configured either as a heat sink or brought into conductive connection with such a heat sink. However, accessibility and interchangeability of the lighting elements must be ensured, which usually requires a separate structure of the board and the heat sink.
    With regard to the interchangeability of the light-emitting elements, in particular the connection of the current-carrying cable is a problem. The connection of the current-carrying cable usually takes place by soldering it directly to the upper side or the lower side of the plate-shaped carrier or the circuit board. Thereafter, the board is fastened by means of a screw connection to a heat sink. In case of a defect of the board, the entire unit would have to be removed from board, heat sink including the installation cable and replaced if necessary. This exchange is very complex and can be made very difficult by the user himself. Therefore, there is a need for replaceable circuit boards.
    The invention therefore aims to facilitate the replacement of the lighting elements and in particular to make it feasible for users without specialist knowledge in a simple manner. In particular, the invention aims to provide a construction with which only the plate-shaped carrier or the board can be changed without the heat sink also has to be removed or replaced at the same time. 3/16 •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• · · .. · .. · · .. · ..s.:.
    To achieve this object, the invention essentially provides that the connecting means consist of an electrically conductive material and cooperate in the heat sink attached to the state of the plate-shaped carrier with the electrical contacts to connect the at least one light emitting diode to the power supply. The connecting means are thus designed to simultaneously produce the mechanical connection of the plate-shaped carrier with the heat sink and the electrical connection of the plate-shaped carrier to the power supply. The difference to the conventional technique is therefore that the current-carrying cable does not have to be soldered to the plate-shaped carrier.
    Rather, a simple replacement of the plate-shaped support by the user is ensured by fixing the plate-shaped carrier by means of releasable connection means.
    Preferably, the plate-shaped carrier is designed as a board, wherein the electrical contacts are formed as formed on the board contact surfaces. In addition to the at least one light-emitting diode, the printed circuit board can carry further electronic components, in particular those for the control electronics. The contact surface may in particular be formed as part of a conductor track on the circuit board.
    In order to allow easy interchangeability of the plate-shaped carrier or the circuit board, the electrical conductors of the power supply, such. the current-carrying cables are connected to the heat sink, to at least one contact element accommodated in an electrically insulated receptacle of the heat sink, or to parts of the heat sink which are electrically insulated from one another, namely 4/16 # ··· ·· ···· ·· · ··· · It is preferable to have it on the back side of the heat sink, ie.,................. on the side facing away from the plate-shaped carrier of the heat sink. With such a design can, in an exchange of the plate-shaped support together with light emitting diode, the heat sink remain in its installed state and the electrical connection cables of the power supply also remain untouched. The electrical connection of the board to the power supply is then preferably such that the connecting means in the heat-sink mounted state of the plate-shaped support an electrical connection between the arranged on the plate-shaped carrier electrical contacts and on the side facing away from the plate-shaped carrier side of the heat sink connected electrical conductors of the power supply hersteilen. It is not essential that the connecting means enforce the heat sink to reach the rear side. Rather, it is sufficient that the connecting means in the position in which they connect the plate-shaped carrier with the heat sink mechanically and in planar contact with each other, contact a component which is electrically connected to the electrical conductors of the power supply, in particular at the back of the heat sink.
    Preferably, the connecting means comprise at least two screws which pass through recesses of the plate-shaped carrier and, in the screwed-in state, respectively contact a component which is electrically connected to the electrical conductor of the power supply.
    It is preferably provided that the component, which is electrically connected to the electrical conductor of the power supply, is connected to the power supply 5/16. · · · · · I · · · · · · 5.:. an axial opening of the heat sink is added.
    In a structurally particularly simple manner may preferably be provided that an external thread of the screws cooperates with an internal thread of a rotatably received in the heat sink component. As a result, when the screws are screwed into the internal thread of the component accommodated in the heat sink, an electrical contact is automatically produced, so that it is possible to dispense with separate components serving for electrical contact.
    In particular, the rotationally fixed received in the heat sink member is formed by a socket of electrically conductive metal, which is electrically connected to the electrical conductor for the power supply of the light emitting diode. In this case, the socket is preferably accommodated in the heat sink with the interposition of a surrounding insulating sleeve.
    In order to prevent inadvertent direct electrical contact between the bushing and the plate-shaped carrier, it is preferably provided that the bushing is received in the heat sink so that it is set back relative to the surface of the heat sink which can be brought into surface contact with the plate-shaped carrier.
    The recesses are preferably formed on the circumference of the plate-shaped carrier, so that the remaining for the heat dissipation to the heat sink portion of the plate-shaped support can be maximized. 6/16 •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
    • · · • · · · ·
    The invention will be explained in more detail with reference to an embodiment schematically illustrated in the drawing. 1 shows a cross section of the illumination device according to the invention, and FIG. 2 shows a plan view of the circuit board shown in FIG.
    Fig. 1 shows a heat sink 1 is shown in which two insulating sleeves 2 are secured against rotation, in particular screwed, glued or pressed. Furthermore, two metal bushes 4 are shown, to each of which a current-carrying cable 3 is connected, in particular by soldering or crimping. The connection of the current-carrying cable 3 takes place here on the side facing away from the board 8. The current-carrying cable 3 can be connected to a power source, not shown, and provide the power supply of the LED available. The metal bushes 4, together with the current-carrying cables 3 are positioned against rotation in the insulating sleeves 2, in particular screwed in, glued or pressed.
    At the top of the heat sink 1, a circuit board 8 is arranged, which carries at least one light-emitting diode, not shown. In order to enable an intensive heat exchange between the heat sink 1 and the circuit board 8, the heat sink 1 has a surface which can be brought into surface contact with the circuit board 8. The attachment of the board 8 on the heat sink 1 by means of two screws 6, which pass through a respective recess 11 of the board 8 and are screwed with its external thread in a formed in the socket 4 internal thread. In order to avoid a short circuit insulating sleeves 5 are attached to the screws 6 and an insulating layer 7 on the board 8. 7/16 ················································································· · · /
    The board 8 has electrical contact surfaces 9, which surround the recesses 11 and which can be contacted by the screw head of the screws 6 either directly or with the interposition of a metal plate 10 each.
    The electrical contact from the power source to the board 8 is thus effected via the current-carrying cables 3, the metal bushings 4, the screws 6 and the metal disks 10 to the contact surfaces 9 of the board 8.
    The applied to the board 8 LED is fastened by means of screws 6 on the heat sink 1. At the same time, the screws 6 also make the electrical connection to the power source. If necessary, the user simply changes the defective LED board 8 as follows: 1. Loosening the screws 6 2. Removing the defective board 8 from the heat sink 1 3. Placing a replacement board 8 on the heat sink 1 4. Fastening the screws 6 8 / 16
    权利要求:
    Claims (11)
    [1]
    Claims 1. A lighting device comprising a plate-shaped support on which at least one light-emitting diode is arranged and which has electrical contacts for the power supply of the at least one light-emitting diode, a heat sink releasably secured to the plate-shaped support, the heat sink having a surface which can be brought into planar contact with the plate-shaped support, and connection means for releasably securing the plate-shaped carrier on the heat sink, characterized in that the connecting means (6) consist of an electrically conductive material and in the heat sink (1) fixed state of the plate-shaped carrier (8) with the electrical contacts (9) cooperating to the at least one light emitting diode to connect to the power supply.
    [2]
    2. Lighting device according to claim 1, characterized in that the plate-shaped carrier (8) is designed as a circuit board and that the electrical contacts (9) as on the board (8) formed contact surfaces are formed.
    [3]
    3. Lighting device according to claim 1 or 2, characterized in that the connecting means (6) in the heat sink (1) fixed state of the plate-shaped carrier (8) has an electrical connection between the plate-shaped carrier (8) arranged electrical contacts (9) and on the side facing away from the plate-shaped carrier (8) side of the heat sink (1) connected electrical conductors of the power supply. 9/16 ········································································. · · · -
    [4]
    4. Lighting device according to claim 1, 2 or 3, characterized in that the connecting means (6) comprise at least two screws, the recesses (11) of the plate-shaped carrier (8) and enforce in the screwed state each one with the electrical conductor of the power supply electrically Contact connected component (4).
    [5]
    5. Lighting device according to claim 4, characterized in that the electrically connected to the electrical conductor of the power supply component (4) is accommodated in an axial opening of the heat sink (1).
    [6]
    6. Lighting device according to claim 4 or 5, characterized in that an external thread of the screws (6) in each case with an internal thread of a rotationally fixed in the heat sink (1) recorded component (4) cooperates.
    [7]
    7. Lighting device according to claim 6, characterized in that the rotationally fixed in the heat sink (1) recorded component (4) is formed by a socket of electrically conductive metal, which is electrically connected to the electrical conductor for the power supply of the light emitting diode.
    [8]
    8. Lighting device according to claim 7, characterized in that the bush (4) with the interposition of a surrounding insulating sleeve (5) in the heat sink (1) is added.
    [9]
    9. Lighting device according to claim 7 or 8, characterized in that the bushing (4) is accommodated in the heat sink (1) in such a way that it is opposite to that of FIG. ··· ··

    The surface of the heat sink (1), which can be brought into contact with the plate-shaped support (8), is set back in surface contact with the plate-shaped support (8).
    [10]
    10. Lighting device according to one of claims 4 to 9, characterized in that the recesses (11) are formed on the circumference of the plate-shaped carrier (8). Vienna, 4 September 2012 Applicants by:

    [11]
    11/16
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    同族专利:
    公开号 | 公开日
    AT513328B1|2015-01-15|
    WO2014036579A1|2014-03-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2003068129A|2001-08-24|2003-03-07|Matsushita Electric Works Ltd|Luminaire|
    DE102010030702A1|2010-04-07|2011-10-13|Osram Gesellschaft mit beschränkter Haftung|Semiconductor lamp|
    WO2012020013A1|2010-08-10|2012-02-16|Osram Ag|Printed circuit board having at least one semiconductor light source, support for the printed circuit board, system comprising the printed circuit board and the support, and method for mounting the printed circuit board on the support|
    US7549772B2|2006-03-31|2009-06-23|Pyroswift Holding Co., Limited|LED lamp conducting structure with plate-type heat pipe|
    JP4582087B2|2006-12-18|2010-11-17|市光工業株式会社|Light emitting diode fixing structure|
    US7815341B2|2007-02-14|2010-10-19|Permlight Products, Inc.|Strip illumination device|
    US7445352B2|2007-03-30|2008-11-04|Yuan Lin|Underwater light|
    US8358081B2|2009-08-21|2013-01-22|Teledyne Technologies Incorporated|Lamp assembly|
    CN201909192U|2010-09-26|2011-07-27|邓建伟|Improved LED module|
    DE202011004439U1|2011-03-25|2011-06-09|LI-EX GmbH, 93152|lighting device|GB2561382B|2017-04-13|2019-03-20|Michael Parslow Neil|Luminaire with replaceable light emitting diode light board for external use|
    US10203096B2|2017-06-28|2019-02-12|Conservation Technology of Illinois LLC|Powering and fastening a light emitting diode or chip-on-board component to a heatsink|
    法律状态:
    2018-05-15| MM01| Lapse because of not paying annual fees|Effective date: 20170904 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA969/2012A|AT513328B1|2012-09-04|2012-09-04|lighting device|ATA969/2012A| AT513328B1|2012-09-04|2012-09-04|lighting device|
    PCT/AT2013/000144| WO2014036579A1|2012-09-04|2013-09-04|Lighting device|
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