• 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:
    The invention relates to a luminaire assembly for a high-voltage-resistant LED luminaire (100), the luminaire assembly comprising at least one electrical operating device (310), one LED module (230) and at least one insulating element (400). The at least one insulating element (400) together with fastening elements (500) provides an electrical and thermal insulation barrier between the lamp assembly and an LED lamp housing (110). An air gap can be designed variably by selecting suitable insulation elements (400).
    公开号:AT16713U1
    申请号:TGM124/2017U
    申请日:2017-05-26
    公开日:2020-07-15
    发明作者:
    申请人:Tridonic Gmbh & Co Kg；
    IPC主号:
    专利说明:

    description
    LUMINAIRE ASSEMBLY FOR A HIGH VOLTAGE-RESISTANT LED LAMP
    TECHNICAL AREA
    The present invention relates to LED lights, and in particular for high voltage resistant LED lights for street lighting.
    BACKGROUND
    The use of electrical control gear for operating light emitting diodes (LED), LED lamps, and LED modules with integrated driver electronics in LED lights require a high standard in terms of electrical immunity. As technology advances, electrical control gear becomes more compact and often more susceptible to interference from asymmetrical surge voltages.
    Asymmetric surge voltages often lead to failures in the electronics of LED lights. These are brief overvoltages, which are usually strongly damped and can last for a few milliseconds or microseconds. For example, electrostatic discharge (ESD) can be caused by touching exposed components. Lightning strikes can cause asymmetrical surge voltages of up to 30 kV. Electrical operating devices or electronic ballasts (EVGs) for operating LED modules within LED lights are often affected.
    Known solutions are achieved by isolating the electronics or clamping asymmetrical surge voltages that occur. Clamping of asymmetrical surge voltages is however limited by protection class requirements, in particular by the requirements of protection class 2 (SK2).
    BRIEF DESCRIPTION OF THE INVENTION
    There is therefore a need for an improved structure of an LED lamp, which has a simplified and easy to interpret immunity to asymmetrical surge voltages.
    This object is achieved with the features of the independent claims. Further embodiments of the invention are described in the dependent claims.
    According to a first aspect, a luminaire assembly for a high-voltage-resistant LED luminaire comprises a mounting element which is designed to be connected to the luminaire housing of the LED luminaire and to be at the same potential as the luminaire housing. The high-voltage-resistant LED luminaire further comprises a system module, which comprises an electrical operating device and an LED module, and at least one insulating element which is arranged between the system module and the mounting element. The system assembly is spaced apart from the mounting element by a predetermined air gap.
    The lamp assembly according to the present invention enables a simplified construction of a high-voltage-resistant LED lamp, with improved immunity to asymmetrical interference voltages is achieved. An insulation barrier is implemented through the air gap. In particular, the fact that the insulation barrier is implemented by an air gap simplifies the complexity of the LED light. The distance between the system module and the luminaire housing, i.e. the insulation barrier or the length of the air gap can be variably defined by selecting suitable insulation elements, which means that the degree of interference immunity can be flexibly adapted to the relevant requirements of the LED light. This reduces necessary tool costs in production and
    This enables cost-effective and fast construction and production of a high-voltage-resistant LED luminaire.
    The air gap also realizes thermal insulation of the luminaire assembly with respect to the luminaire housing, which improves the life of the LEDs and the driver electronics, particularly under outdoor conditions, such as sunshine.
    Individual insulating elements can be columnar. For example, each insulating element of the at least one insulating element could be column-shaped and have a length along a longitudinal axis that is not less than 0.5 cm and optionally not less than 1.5 cm.
    The columnar design enables a compact design of the lamp assembly and improves the immunity to asymmetrical interference voltages.
    By dimensioning the insulating elements in the range 0.5 cm or larger or 1.5 cm or larger, on the one hand, sufficient insulation against interference voltages can be guaranteed. For example, an insulation barrier can be provided that is sufficient for typical interference voltages in an outdoor environment. It may be desirable that the length is not particularly much longer than the 0.5 cm or 1.5 cm, e.g. is in the range 0.5 cm - 5 cm, or optionally in the range 1.5 cm - 2 cm. This enables a compact design to be achieved.
    Two opposite fasteners can mechanically engage in one end face of a columnar insulating element, the two fastening elements being electrically insulated from one another by the insulating element.
    By engaging the fasteners each in an end face of an insulating element, the design of the lamp assembly can be designed to be compact and mechanically stable, in particular, the intervention of this kind simplifies adaptation to different voltage ranges of the immunity requirement.
    Each insulating element of the at least one insulating element can be free-standing and implement the air gap along its length.
    Since each insulating element is designed to be free-standing and implements the air gap along its length, the design of the lamp assembly can be designed to be compact and mechanically stable and can be adapted particularly easily to different voltage ranges of the immunity requirements.
    The mounting element can be plate-shaped and have a recess in which the system assembly is at least partially arranged.
    Characterized in that the holding element is plate-shaped and has a recess in which the system assembly is at least partially arranged, the light assembly can be easily attached to an LED light and also has a low installation height.
    The LED module and the mounting element can lie in one plane, which enables a flat design of the lamp assembly and a flat LED lamp on the top.
    A radial distance between the system assembly and a circumference of the recess can lie along the entire circumference of the system assembly in the range of 50% - 150% of the length of the columnar insulating element, and in particular optionally in the range of 80% - 120% of the length of the columnar insulating element. In other words, this can mean that the distance between the recess and the system assembly corresponds approximately to the length of the insulating element; immunity to interference can be achieved. The radial distance in the range of 50% - 150%, optionally 80% - 120%, the length of the columnar insulating element enables improved interference immunity to asymmetrical interference voltages, in particular a slight adjustment of the luminaire assembly
    Immunity requirements of the LED luminaire and thermal insulation of the luminaire assembly from the luminaire housing.
    The at least one insulating element can extend away from the mounting element on a first side, wherein the system assembly can be arranged at least partially on the first side, and wherein the LED module can be set up to provide ambient lighting on one of the first sides to provide opposite second side.
    Extending the insulating element away from the mounting element on a first side, the system assembly being at least partially arranged on the first side, and the LED module being set up to provide ambient lighting on a second side opposite the first side, increases mechanical strength and resistance to mechanical shock and vibration. In addition, a particularly integrated arrangement can be achieved.
    The system assembly may extend at least partially along the length of the at least one insulating element.
    This means that the system assembly e.g. can extend parallel or adjacent to the insulating element.
    The fact that the system assembly extends at least partially along the length of the at least one insulating element further increases the compactness of the design.
    The at least one insulating element can consist of a ceramic material, which increases the mechanical stability of the lamp assembly.
    The lamp assembly may further comprise an LED holding device to which the LED module is attached and an ECG holding device to which the electrical operating device is attached. The LED holding device can be spaced from the ECG holding device along the entire circumference of the LED holding device by a thermal air gap.
    The structure of the lamp assembly by an LED holding device and an ECG holding device, which are spaced apart by a thermal air gap, additionally offers double thermal decoupling. On the one hand from the luminaire housing, which is strongly heated by sunlight during the day, to the luminaire assembly and on the other hand to the electronics on the electronic ballast holding device to the LED holding device, which is heated by the LEDs.
    A length of the thermal air gap can optionally not be greater than 50% of the length of the air gap, further optionally not greater than 20% of the length of the air gap. Limiting the thermal air gap in this way increases the compactness of the luminaire assembly and at the same time enables an increased service life for the electronics and the LEDs.
    The LED holding device can comprise a heat sink with a plurality of cooling fins, on which an LED module is mounted, and which is connected to the holding element by lateral mounting elements which are arranged angularly and radially to the LED module.
    By mounting a heat sink with lateral mounting elements within the LED holding device, it is possible that the LEDs are better cooled while maintaining the electrical immunity and thereby have an increased efficiency and service life.
    The heat sink can be arranged between the ECG holding device and the LED module, which increases the compactness of the lamp assembly.
    A fastening element can engage both in the LED holding device, the electronic ballast holding device and an insulating element, thereby reducing the number of components required which are necessary, the LED holding device, the electronic ballast holding device and the insulating elements with one another mechanically to connect stably.
    [0034] According to a further aspect, a high-voltage-resistant LED light comprises at least one light assembly.
    For such a luminaire, effects can be achieved that are comparable to the effects that were described above for the luminaire assembly according to a further aspect.
    The high-voltage-resistant LED luminaire can further comprise a translucent luminaire cover, which is spaced apart from the system assembly by the air gap, as a result of which the LEDs are particularly protected by mechanical and chemical influences.
    The features and features set out above, which are described below, can be used not only in the corresponding explicitly stated combinations, but also in further combinations or in isolation, without departing from the scope of protection of the present invention.
    BRIEF DESCRIPTION OF THE FIGURES
    The present invention is explained in more detail below on the basis of preferred exemplary embodiments with reference to the figures.
    In the figures, the same reference numerals designate the same or similar elements. The figures are schematic representations of various embodiments of the invention. Elements shown in the figures are not necessarily drawn to scale. Rather, the various elements shown in the figures are reproduced in such a way that their function and general purpose can be understood by the person skilled in the art.
    Figure 1 shows a schematic representation of a lamp assembly according to an embodiment.
    Figure 2 shows a schematic plan view of the lamp assembly of Figure 1.
    Figure 3 shows a schematic cross-sectional view of an insulating element according to an embodiment.
    [0043] FIG. 4 shows a schematic cross-sectional view of a high-voltage-resistant LED light with the light assembly of FIG. 1 in accordance with an exemplary embodiment.
    DETAILED DESCRIPTION OF EMBODIMENTS
    The above-described properties, features and advantages of this invention and the manner in which they are achieved will become clearer and more clearly understandable in connection with the following description of the exemplary embodiments, which are explained in more detail in connection with the drawings.
    The present invention relates to a luminaire assembly 120 for a high-voltage-resistant LED luminaire 100, a system assembly 300 comprising at least one electrical operating device 310 and an LED module 320, with at least one insulating element 400 providing insulation between the system assembly 300 and the holding element 200 provides. This improves the immunity to interference from asymmetrical interference voltages. The clearance 410 of the lamp assembly 300 to the lamp housing 110, i.e. the insulation barrier can be variably defined by the selection of suitable insulation elements 400.
    Figure 1 shows a schematic representation of a lamp assembly 120 according to an embodiment.
    A luminaire assembly 120 consists of a mounting element 200, at least two insulating elements 400, at least four fastening elements 500, and a system assembly 300. The system assembly 300 comprises an electronic ballast holding device 610 and an LED
    Holding device 620. The electronic ballast holding device 610 is designed in the form of a plate, and an electronic operating device 310 is fastened on the electronic ballast holding device 610.
    The electronic operating device 310 can be connected to an AC supply line (not shown in FIG. 1) in order to provide a supply voltage and a supply current to a plurality of LED lamps 321. A surge protector consisting of varistors for voltage clamping, which is state of the art, is used against symmetrical surge voltages in the AC supply line.
    The electronic operating device 310 may comprise an AC / DC converter, which is configured to output a DC supply voltage to the LED lamps 321 based on the AC supply voltage.
    The electronic operating device 310 can be configured as an LED converter. The electronic operating device 310 can have a calibration rectifier for rectifying the AC supply voltage, for example the mains voltage. Operating device 310 may further include a power factor correction circuit. A power factor correction circuit provides an output voltage for downstream components of the operating device 310. A further voltage conversion and / or dimming functions can be achieved, for example, via a DC / DC converter, which can be configured as an LLC resonance converter, and / or an output driver. A control device can perform various control or regulating functions, for example for implementing dimming commands that are transmitted to the control device via a bus.
    The LED holding device 620 comprises a heat sink 621, which has a plurality of cooling fins and is connected to the insulating elements 400 with angular, lateral mounting elements 622. An LED module 320 with a plurality of LED lamps is arranged on the heat sink 621. The LED module 320 is thermally coupled to the heat sink 621.
    The mounting element 200 and the side mounting elements 622 are connected to two insulating elements 400 such that the insulating elements 400 contact the mounting element 200 and the side mounting elements 622 with their end faces. Two fastening elements 500 engage in each insulating element 400. The insulating elements 400 are column-shaped and have a length 401, with one fastening element 500 also engaging in one end face of an insulating element 400. The length 401 of the insulating elements implements the air gap 410 of the system assembly 300 to the mounting element 200. The mounting element 200 is therefore spaced apart from the system assembly 300 by the insulating elements 400. The system assembly 300 extends further along the longitudinal axis 420 of each insulating element 400, the mounting element 200 also being plate-shaped and the system assembly 300 being at least partially arranged in the cutout of the mounting element 200. In the exemplary embodiment in FIG. 1, the LED module 320 is located in one plane with the holding element 200 (in the example in FIG. 1, this plane is oriented perpendicular to the plane of the drawing).
    The lamp assembly 120 is constructed such that the system assembly 300 is spaced apart from the mounting element 200 by an air gap 410, which is represented by a dashed line. An air gap is the shortest distance between two conductive components. In this exemplary embodiment, the system assembly 300 is spaced from the mounting element 200 along the entire circumference of the system assembly 300 by at least the air gap 410. In this exemplary embodiment, the air gap 410 is implemented by the insulating elements 400, the air gap extending along the longitudinal axis of the insulating elements 400.
    The ECG holding device 610 is spaced from the LED holding device 620 by a thermal air gap 630. The thermal air gap 630 is implemented by the fastening elements 500, the fastening elements 500 together with the insulating elements 400 also implementing the air gap 410.
    Figure 2 shows a schematic plan view of the lamp assembly 120 of Figure 1.
    The mounting element 200 has round or square cutouts for attachment to a lamp housing 110 (not shown in FIG. 2). Fastening elements 500 engage in the holding element 200 and the lateral mounting elements 622. The system assembly 300 is arranged in an annular recess 210 in the holding element 200. 2, the LED module 320, comprising a large number of LED lamps 321, is fastened on a heat sink 621. The heat sink 621 is connected to the fastening elements 500 via the lateral mounting elements 622. The LED module 320 is arranged centrally in the annular recess 210 of the holding element 200.
    FIG. 3 shows a schematic cross-sectional view of an insulating element 400 according to an exemplary embodiment.
    The insulating element 400 is columnar and has a longitudinal axis 420 and two end faces 430. The insulating element has a length 401 along the longitudinal axis 420. Furthermore, the insulating element is designed such that fastening elements 500 engage mechanically in the end faces 430.
    FIG. 4 shows a schematic cross-sectional view of a high-voltage-resistant LED luminaire 100 with the luminaire assembly 120 from FIG. 1 in accordance with an exemplary embodiment.
    The LED lamp 100 comprises a lamp housing 110 and a lamp cover 130. The mounting element 200 is attached to plate-shaped ends of the lamp housing 110. The luminaire assembly 120 is arranged within the luminaire housing 110 such that the system assembly 300 is spaced apart from the luminaire housing 110 and the luminaire cover 130 by the air gap 410.
    By a suitable choice of materials and length of the insulating elements 400, the LED light can be designed such that it is protected against high asymmetrical surge voltages up to 30 kV. For example, such high surge voltages can occur when a lightning strike takes place in a street lamp.
    In summary, a luminaire assembly for an LED luminaire and a high-voltage-resistant LED luminaire are provided, which comprise at least one electrical operating device and one LED module, at least one insulating element forming an air gap between a system assembly, comprising the electrical operating device and the LED module. Module, and provides a support member.
    According to the invention, an improved, easily interpretable immunity to asymmetrical interference voltages and an improved thermal decoupling of the driver electronics in the electronic control gear from the thermally stressed LED heat sink and the thermally stressed lamp housing, especially in the outdoor area, are achieved. The clearance of the lamp assembly to the lamp housing, i.e. the insulation barrier can be variably defined by selecting suitable insulation elements.
    REFERENCE SIGN LIST
    100 LED light
    110 luminaire housing
    120 luminaire assembly
    130 lamp cover
    200 bracket element
    210 Cut-out in the mounting element 300 System assembly
    310 electrical control gear
    320 LED module
    321 LED lamps
    400 insulating element
    401 length of the insulating element
    410 air gap around mounting element 420 longitudinal axis of the insulating element 430 end faces
    500 fastener
    610 ECG holding device
    620 LED holder
    621 heat sink
    622 side mounting elements
    630 thermal air gap
    权利要求:
    Claims (10)
    [1]
    1. A lamp assembly for a high-voltage-resistant LED lamp (100), comprising: a mounting element (200), which is designed to be connected to a lamp housing (110) of the LED lamp (100) and to the same potential as the lamp housing to lie; a system module (300) which comprises an electrical operating device (310) and an LED module (320); at least one insulating element (400), which is arranged between the system assembly (300) and the mounting element (200); characterized in that the system assembly (300) is spaced from the mounting element (200) by an air gap (410).
    [2]
    2. Luminaire assembly according to claim 1, characterized in that each insulating element (400) of the at least one insulating element (400) is columnar and optionally has a length (401) along a longitudinal axis (420) that is not less than 0.5 cm, further optionally is not less than 1.5 cm.
    [3]
    3. Luminaire assembly according to claim 2, characterized in that for each insulating element (400) of the at least one insulating element (400) two opposite fastening elements (500) mechanically engage in one end face of the corresponding columnar insulating element (400), the two fastening elements (500 ) are electrically insulated from one another by the corresponding columnar insulating element (400).
    [4]
    4. Luminaire assembly according to one of the preceding claims, characterized in that each insulating element (400) of the at least one insulating element (400) is designed to be free-standing and implements the air gap (410) along its length.
    [5]
    5. Luminaire assembly according to one of the preceding claims, characterized in that a radial distance along the entire circumference of the system assembly (300) between the system assembly (300) and a circumference of the recess in the range of 50% 150% of the length of the at least one insulating element ( 400), optionally 80% - 120%.
    [6]
    6. Lamp assembly according to one of the preceding claims, characterized in that the at least one insulating element (400) extends away from the mounting element (200) on a first side, the system assembly (300) being arranged at least partially on the first side, and wherein the LED module (320) is set up to provide ambient lighting on a second side opposite the first side.
    [7]
    7. The lamp assembly according to one of the preceding claims, wherein the lamp assembly (120) further comprises: an LED holding device (620) to which the LED module (320) is attached; an ECG holding device (610) to which the electrical operating device (310) is attached; characterized in that the LED holding device (620) is spaced apart from the ECG holding device (610) along the entire circumference of the LED holding device by a thermal air gap (630).
    [8]
    8. Luminaire assembly according to claim 7, characterized in that the LED holding device (620) comprises a heat sink (621) with a plurality of cooling fins,
    on which the LED module (320) is mounted and which is connected to the mounting element (200) by side mounting elements (622), which are arranged angularly and radially to the LED module (320).
    [9]
    9. High-voltage-resistant LED light, which comprises at least one light assembly (120) according to one of the preceding claims.
    [10]
    10. High-voltage-resistant LED lamp according to claim 9, characterized in that the LED lamp (100) further comprises a translucent lamp cover (130), which is spaced by the air gap (410) from the system module (300).
    4 sheets of drawings
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    同族专利:
    公开号 | 公开日
    WO2018197350A1|2018-11-01|
    EP3615861B1|2020-12-30|
    EP3615861A1|2020-03-04|
    DE102017207181A1|2018-10-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20120002413A1|2010-07-02|2012-01-05|Tae-Min Kim|Streetlight|
    CN204005312U|2014-03-24|2014-12-10|东莞高仪电子科技有限公司|The high-voltage impulse protection circuit of LED lamp plate, LED lamp plate and LED light fixture|
    AT454590T|2001-10-30|2010-01-15|Centaurea Oy|EXPLOSION-PROOF LIGHT|
    DE102012101411B4|2012-02-22|2016-02-18|R.Stahl Schaltgeräte GmbH|Explosion-proof luminaire with cast-in optics|EP3922908A1|2020-06-11|2021-12-15|Signify Holding B.V.|Housing for luminaire|
    法律状态:
    2022-01-15| MM01| Lapse because of not paying annual fees|Effective date: 20210531 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017207181.8A|DE102017207181A1|2017-04-28|2017-04-28|Luminaire assembly for a high voltage resistant LED light|
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