ES2618510T3

ES2618510T3 - LED lamp holder

Info

Publication number: ES2618510T3
Application number: ES13730318.6T
Authority: ES
Inventors: Marco Gaeta
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-22
Filing date: 2013-05-21
Publication date: 2017-06-21
Anticipated expiration: 2033-05-21
Also published as: PL2852790T3; ITMI20120886A1; WO2013175300A1; EP2852790B1; EP2852790A1

Abstract

Un portalámpara (100) adecuado para una fuente de luz LED (30) que comprende un disipador de calor (10) para dicha fuente de luz LED, un soporte (20) para dicha fuente de luz LED, una fuente de luz LED (30); y un conector (50) para la alimentación eléctrica de dicha fuente de luz LED, en el que dicho disipador de calor (10) constituye la estructura de soporte del portalámpara, está dotado de unas aletas de refrigeración (12) y tiene medios para una fijación directa a una lámpara, y medios para una fijación a dicho soporte (20); comprendiendo dicho soporte (20) unos medios de conexión eléctrica entre dicha fuente (30) y dicho conector (50), siendo dicha fuente (30), a su vez, insertable de forma deslizable en un asiento (22a) de dicho soporte (20), siendo dichos medios de fijación unas roscas (10a) formadas sobre la superficie externa formada por dichas aletas (12) de dicho disipador de calor para un acoplamiento roscado con un elemento de soporte de una lámpara, caracterizado por que el disipador de calor (10) está dotado de unos medios de fijación adicionales que comprenden orificios roscados (12b) hechos en las aletas (12a) de mayor espesor y que tienen los ejes extendiéndose a lo largo de una dirección radial de dicho disipador de calor (10), y el extremo (72) de los elementos alargados (70) se atornilla en dichos orificios roscados (12b), estando dichos elementos alargados (70), a su vez, conectados a los elementos de soporte de una lámpara.A lampholder (100) suitable for an LED light source (30) comprising a heat sink (10) for said LED light source, a support (20) for said LED light source, an LED light source (30 ); and a connector (50) for the power supply of said LED light source, in which said heat sink (10) constitutes the support structure of the lampholder, is provided with cooling fins (12) and has means for a direct fixing to a lamp, and means for fixing to said support (20); said support (20) comprising electrical connection means between said source (30) and said connector (50), said source (30), in turn, being slidably inserted in a seat (22a) of said support (20 ), said fixing means being threads (10a) formed on the external surface formed by said fins (12) of said heat sink for a threaded coupling with a support element of a lamp, characterized in that the heat sink ( 10) it is provided with additional fixing means comprising threaded holes (12b) made in the fins (12a) of greater thickness and having the axes extending along a radial direction of said heat sink (10), and the end (72) of the elongated elements (70) is screwed into said threaded holes (12b), said elongated elements (70) being, in turn, connected to the support elements of a lamp.

Description

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DESCRIPCIONDESCRIPTION

Portalampara de LED.LED lamp holder.

[0001] La presente invencion se refiere a un dispositivo de iluminacion LED, mas particularmente un portalampara para fuentes de luz con LED reemplazables integrales con un disipador de calor.[0001] The present invention relates to an LED lighting device, more particularly a lamp holder for integral replaceable LED light sources with a heat sink.

[0002] Se sabe bien que el uso de dispositivos de iluminacion que aprovechan un LED como fuente de luz ha aumentado considerablemente en los ultimos anos. La tendencia actual a utilizar esta tecnologia de iluminacion se debe a razones economicas y de rendimiento. A una mejor calidad de la luz producida por un LED en comparacion con las lamparas incandescentes o fluorescentes tradicionales, se le anade un consumo de energia considerablemente reducido. Sin embargo, las claras ventajas de la tecnologia LED se acompanan de unas dificultades de aplicacion innegables: solo por mencionar las mas importantes, deben tenerse en cuenta la complejidad y especificidad del circuito de control para la fuente LED, asi como el considerable calor producido por su funcionamiento.[0002] It is well known that the use of lighting devices that take advantage of an LED as a light source has increased considerably in recent years. The current tendency to use this lighting technology is due to economic and performance reasons. At a better quality of the light produced by an LED compared to traditional incandescent or fluorescent lamps, a considerably reduced energy consumption is added. However, the clear advantages of LED technology are accompanied by undeniable application difficulties: just to mention the most important ones, the complexity and specificity of the control circuit for the LED source must be taken into account, as well as the considerable heat produced by its operation

[0003] El documento WO 2010/146509 A1 desvela un conector para conectar un componente a un disipador de calor, que comprende un soporte para una fuente de luz, una fuente de luz LED, un conector para alimentar dicha fuente de luz, en el que el disipador de calor tiene medios para fijarlo a una lampara, donde la conexion se consigue mediante una junta de bayoneta y el disipador de calor no es una estructura portadora de carga del dispositivo, y el reemplazo de la fuente de luz LED requiere el desmontaje de la placa de circuitos impresos.[0003] WO 2010/146509 A1 discloses a connector for connecting a component to a heat sink, comprising a support for a light source, an LED light source, a connector for feeding said light source, in the that the heat sink has means to fix it to a lamp, where the connection is achieved by a bayonet joint and the heat sink is not a load carrying structure of the device, and replacement of the LED light source requires disassembly of the printed circuit board.

[0004] El documento WO 2010/108906 A1 desvela un dispositivo similar al documento que se ha analizado anteriormente, en el que el disipador de calor es de nuevo un elemento que no forma parte de la estructura de soporte del dispositivo y no esta dotado de medios para una fijacion directamente a una lampara sino que esta solamente integrado en un modulo LED.[0004] WO 2010/108906 A1 discloses a device similar to the document discussed above, in which the heat sink is again an element that is not part of the support structure of the device and is not provided with means for fixing directly to a lamp but is only integrated in an LED module.

[0005] El documento EP 2339230 A2 desvela un conjunto de iluminacion LED muy complejo que no es adecuado para soportar una lampara simple y no esta dotado de un disipador de calor utilizado como estructura de soporte del conjunto.[0005] EP 2339230 A2 discloses a very complex LED lighting assembly that is not suitable for supporting a single lamp and is not provided with a heat sink used as a support structure for the assembly.

[0006] El portalampara de LED de acuerdo con la presente invencion esta disenado con el fin de evitar los inconvenientes que se han mencionado anteriormente de adaptabilidad y generacion de calor, proporcionando un portalampara que en una realizacion preferida se hace integral con el disipador de calor, que a su vez puede estar conectado por un lado con la fuente de luz y, por otro lado, con cualquier lampara.[0006] The LED lamp holder according to the present invention is designed in order to avoid the aforementioned disadvantages of adaptability and heat generation, providing a lamp holder which in a preferred embodiment becomes integral with the heat sink , which in turn can be connected on the one hand with the light source and, on the other hand, with any lamp.

[0007] El portalampara de LED de la presente invencion, como se describira en detalle en lo sucesivo en el presente documento, se presta a reemplazar en las lamparas existentes, los portalamparas tradicionales, tales como los de lamparas incandescentes o bombillas o cualquier otro tipo conocido.[0007] The LED lampholder of the present invention, as will be described in detail hereinafter, lends itself to replacing in existing lamps, traditional lampholders, such as incandescent lamps or bulbs or any other type known.

[0008] Por lo tanto, el objeto principal de la presente invencion es proporcionar un portalampara para fuentes de luz LED, que se puede usar como alternativa o sustitucion para los portalamparas tradicionales, ya sea para lamparas nuevas o existentes.[0008] Therefore, the main object of the present invention is to provide a lampholder for LED light sources, which can be used as an alternative or replacement for traditional lampholders, whether for new or existing lamps.

[0009] Otro objeto de la presente invencion es proporcionar un portalampara para fuentes de luz LED, en el que puede ser posible reemplazar solamente la fuente de luz LED, ya sea en caso de fallo de la existente o en caso de instalar una nuevo fuente LED con diferentes caracteristicas de iluminacion.[0009] Another object of the present invention is to provide a lamp holder for LED light sources, in which it may be possible to replace only the LED light source, either in case of failure of the existing one or in case of installing a new source. LED with different lighting characteristics.

[0010] Finalmente, un objeto de la presente invencion es proporcionar un portalampara para fuentes de luz LED, en el que la disipacion de calor se consigue eficazmente mediante un dispositivo pasivo.[0010] Finally, an object of the present invention is to provide a lamp holder for LED light sources, in which heat dissipation is effectively achieved by a passive device.

[0011] Estas y otras caracteristicas del portalampara LED de la presente invencion seran evidentes leyendo la siguiente descripcion detallada de una realizacion preferida que se tomara junto con las hojas adjuntas de dibujos, en las que se identifican elementos iguales o similares con los mismos numeros de referencia, y en los que:[0011] These and other features of the LED lamp holder of the present invention will be apparent by reading the following detailed description of a preferred embodiment to be taken together with the attached sheets of drawings, in which identical or similar elements are identified with the same numbers of reference, and in which:

La Fig. 1 es una vista en perspectiva por piezas del portalampara de LED de acuerdo con la realizacion preferida de la presente invencion;Fig. 1 is a perspective view by parts of the LED lamp holder according to the preferred embodiment of the present invention;

la Fig. 2 es una segunda vista en perspectiva por piezas del portalampara de la Fig. 1;Fig. 2 is a second perspective view in parts of the lamp holder of Fig. 1;

la Fig. 3 es una vista en perspectiva por piezas de algunos componentes del portalampara de la Fig. 1;Fig. 3 is a perspective view by parts of some components of the lamp holder of Fig. 1;

la Fig. 4 es una segunda vista en perspectiva por piezas de los componentes de la Fig. 3;Fig. 4 is a second perspective view in parts of the components of Fig. 3;

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la Fig. 5 es una vista en perspectiva del disipador de calor del portalampara de las figuras anteriores;Fig. 5 is a perspective view of the heat sink of the lamp holder of the previous figures;

la Fig. 6 es una segunda vista en perspectiva del disipador de calor de la Fig. 5; yFig. 6 is a second perspective view of the heat sink of Fig. 5; Y

la Fig. 7 es el soporte de la fuente de luz LED que se utiliza en el portalampara de las figuras anteriores.Fig. 7 is the support of the LED light source that is used in the lamp holder of the previous figures.

[0012] Con referencia ahora a las Figuras 1 y 2, el portalampara 100 de la presente invencion comprende un disipador de calor cilindrico 10, un soporte 20 para una fuente de luz LED 30, una lente 40 aplicable a dicho soporte 20, y un conector 50 para alimentar la fuente LED. Ademas, en la Fig. 1 y 2, se muestran dos sistemas diferentes del montaje del portalampara a una lampara generica: un aro roscado 60, que es solamente parte de una lampara, y un grupo de tres elementos tubulares 70 adoptados para algunos tipos de lamparas, tal como una pantalla de lampara.[0012] With reference now to Figures 1 and 2, the lamp holder 100 of the present invention comprises a cylindrical heat sink 10, a support 20 for an LED light source 30, a lens 40 applicable to said support 20, and a 50 connector to power the LED source. In addition, in Fig. 1 and 2, two different systems of mounting the lamp holder to a generic lamp are shown: a threaded ring 60, which is only part of a lamp, and a group of three tubular elements 70 adopted for some types of lamps, such as a lamp shade.

[0013] El disipador de calor 10 es un cuerpo cilindrico de aluminio extruido, con el fin de obtener un conjunto de aletas 12 que se extienden radialmente hacia fuera desde su cavidad central u orificio pasante 14. En posiciones axialmente simetricas al eje longitudinal de dicha cavidad, las tres aletas 12a tienen un espesor mayor que las aletas restantes 12 y un orificio preferiblemente roscado 12b, en el que se atornilla un primer extremo 72 de dichos tubos de laton 70. El orificio pasante 14 tambien esta internamente roscado en ambos extremos 14a y 14b. Como se muestra en los dibujos, el disipador de calor 10 aproximadamente en su parte media tiene una brida 18 con la funcion de tope para los elementos de fijacion a una lampara (no mostrada) tal como el aro 60. Ademas, la brida divide la superficie externa del disipador de calor en una primera porcion 10a (orientada hacia el soporte 20 y la correspondiente fuente de luz) y una segunda porcion 10b. La porcion 10a esta ventajosamente roscada para permitir la conexion con el aro 60 (o elemento de conexion similar con un cuerpo de lampara) que esta internamente roscado.[0013] The heat sink 10 is an extruded aluminum cylindrical body, in order to obtain a set of fins 12 that extend radially outwardly from its central cavity or through hole 14. In axially symmetrical positions to the longitudinal axis of said cavity, the three fins 12a have a thickness greater than the remaining fins 12 and a preferably threaded hole 12b, in which a first end 72 of said brass tubes 70 is screwed. The through hole 14 is also internally threaded at both ends 14a and 14b. As shown in the drawings, the heat sink 10 approximately in its middle part has a flange 18 with the stop function for the fasteners to a lamp (not shown) such as the ring 60. In addition, the flange divides the external surface of the heat sink in a first portion 10a (oriented towards the support 20 and the corresponding light source) and a second portion 10b. The portion 10a is advantageously threaded to allow connection to the ring 60 (or similar connection element with a lamp body) that is internally threaded.

[0014] En las Figuras 2-4 y 7 se puede observar en diversos grados de detalle, el soporte 20 que comprende un disco 22, en cuya superficie superior 22a hay un asiento en el que la fuente de luz o el LED SMD de la placa 30 pueden insertarse de manera deslizante; en dicho asiento tambien se fijan contactos electricos hechos de placas de metal curvadas en C: el lado superior de la curvatura en C de cada placa esta en contacto con un terminal de la placa SMD, mientras que el lado inferior esta conectado a una clavija que, a traves de los orificios adecuados hechos en el asiento, pasa a traves del cuerpo del disco 22 y sale de la superficie inferior 22b del disco. A partir de dicha superficie circular inferior 22b del disco 20, se extienden dos superficies aproximadamente circulares 24 y se roscan externamente para acoplar la rosca 14a del disipador de calor 10. Mas particularmente, las superficies 24 estan dimensionadas para recibir y retener por friccion un conector 50, en el que se insertan las clavijas electricas que se han mencionado anteriormente. Finalmente, desde el conector 50 se extienden un par de cables de alimentacion 52 para atravesar la cavidad 14 del disipador de calor 10 y estan disponibles para la conexion de una fuente de alimentacion externa (no mostrada). Por lo tanto, de esta manera se define el circuito electrico del portalampara, que permite alimentar la fuente de luz LED como un portalampara tradicional para fuentes de luz incandescente o de bombilla.[0014] In Figures 2-4 and 7 the support 20 comprising a disk 22 can be seen in varying degrees of detail, on whose upper surface 22a there is a seat in which the light source or the SMD LED of the plate 30 can be inserted slidably; electrical contacts made of C-curved metal plates are also fixed in said seat: the upper side of the C-curvature of each plate is in contact with a terminal of the SMD plate, while the lower side is connected to a plug that , through the appropriate holes made in the seat, passes through the body of the disk 22 and leaves the bottom surface 22b of the disk. From said lower circular surface 22b of the disk 20, two approximately circular surfaces 24 extend and are externally threaded to engage the thread 14a of the heat sink 10. More particularly, the surfaces 24 are sized to receive and frictionally retain a connector 50, in which the electrical plugs mentioned above are inserted. Finally, a pair of power cables 52 extend from the connector 50 to pass through the cavity 14 of the heat sink 10 and are available for connection of an external power source (not shown). Therefore, in this way the electric circuit of the lamp holder is defined, which allows the LED light source to be fed as a traditional lamp holder for incandescent or bulb light sources.

[0015] Por ultimo, como se muestra en las figuras anteriores, una lente 40 consiste en un anillo 42 y un elemento 44 que puede ser transparente, opaco o tratado de cualquier manera para una difusion correcta de la luz emitida por el LED. El anillo 42 se hace integral con los salientes 46 diametralmente opuestos y conformados de tal modo que encajen a presion con el disco de soporte que se ha descrito anteriormente 20.[0015] Finally, as shown in the previous figures, a lens 40 consists of a ring 42 and an element 44 that can be transparent, opaque or treated in any way for a correct diffusion of the light emitted by the LED. The ring 42 is made integral with the protrusions 46 diametrically opposed and shaped in such a way that they snap together with the support disk described above 20.

[0016] A partir de la descripcion detallada del portalampara 100 de acuerdo con una realizacion preferida de la presente invencion, se ha de senalar que dicho portalampara alcanza totalmente los objetos indicados anteriormente de adaptabilidad a lamparas existentes, asi como a lamparas de concepcion novedosa, sin necesidad de ninguna modificacion del mismo. Incluso el problema del sobrecalentamiento del portalampara se resuelve adoptando el disipador de calor pasivo 10 con gran superficie de intercambio termico, evitando de este modo la adopcion de sistemas de ventilacion ruidosos que implican un consumo de energia adicional. Ademas de la adaptabilidad, se puede observar tambien una facilidad considerable de reemplazo de la fuente de luz, retirando la lente y simplemente deslizando la placa desde el asiento de soporte, siendo dicho reemplazo necesario no solo en caso de fallo, sino tambien en caso de otro LED con diferentes caracteristicas de iluminacion.[0016] From the detailed description of the lamp holder 100 according to a preferred embodiment of the present invention, it should be noted that said lamp holder fully achieves the aforementioned objects of adaptability to existing lamps, as well as to novelly designed lamps, without the need for any modification thereof. Even the problem of overheating the lampholder is solved by adopting the passive heat sink 10 with a large heat exchange surface, thus avoiding the adoption of noisy ventilation systems that imply additional energy consumption. In addition to adaptability, a considerable ease of replacement of the light source can also be observed, removing the lens and simply sliding the plate from the support seat, said replacement being necessary not only in case of failure, but also in case of Another LED with different lighting characteristics.

[0017] Finalmente, hay que senalar que las caracteristicas de construccion del portalampara 100 de acuerdo con la realizacion preferida de la presente invencion, se pueden modificar o cambiar en realizaciones alternativas. Por ejemplo, se pueden cambiar todos los sistemas de fijacion o sujecion de las piezas, mas particularmente se pueden adoptar otros sistemas de fijacion o de conexion en lugar de roscas. De una manera similar, las formas y dimensiones de las aletas de refrigeracion del disipador de calor se pueden cambiar, simplemente eligiendo diferentes troqueles de extrusion para el cuerpo de aluminio 10. Sin embargo, estas y otras variaciones a la realizacion preferida del portalampara de la presente invencion estan dentro del alcance de proteccion como se define en las reivindicaciones adjuntas.[0017] Finally, it should be noted that the construction characteristics of the lamp holder 100 according to the preferred embodiment of the present invention can be modified or changed in alternative embodiments. For example, all the fastening or fastening systems of the parts can be changed, more particularly other fastening or connection systems can be adopted instead of threads. Similarly, the shapes and dimensions of the cooling fins of the heat sink can be changed, simply by choosing different extrusion dies for the aluminum body 10. However, these and other variations to the preferred embodiment of the lamp holder of the present invention are within the scope of protection as defined in the appended claims.

Claims

1. A lamp holder (100) suitable for an LED light source (30) comprising a heat sink (10) for said LED light source, a support (20) for said LED light source, an LED light source (30); and a connector

5 (50) for the electrical supply of said LED light source, wherein said heat sink (10) constitutes the

lamp holder support structure, is equipped with cooling fins (12) and has means for direct fixing to a lamp, and means for fixing to said support (20); said support (20) comprising electrical connection means between said source (30) and said connector (50), said source (30), in turn, being slidably inserted in a seat (22a) of said support (20 ), said fixing means being about 10 threads (10a) formed on the external surface formed by said fins (12) of said heat sink for a threaded coupling with a support element of a lamp, characterized in that the heat sink (10) is provided with additional fixing means comprising threaded holes (12b) made in the fins (12a) of greater thickness and having the axes extending along a radial direction of said heat sink (10), and the end (72) of the elongated elements (70) is screwed into said threaded holes (12b), said elongated elements (70) being, in turn, connected to the support elements of a lamp.

2. The lamp holder according to claim 1, wherein said means for fixing to said support (20) are threaded holes (14a) and said support (20) of said light source (30) has surfaces (24 ) that protrude therefrom that are threaded for engagement with said means (14a).

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3. The lamp holder according to claim 1 or 2, wherein said support (20) of said light source (30) has a seat (22a) for said light source which in turn comprises electrical contacts for said light source between said light source and the electrical terminals, preferably in the form of pins.