ES1076073U

ES1076073U - Luminaire with integrated dissipator (Machine-translation by Google Translate, not legally binding)

Info

Publication number: ES1076073U
Application number: ES201131220U
Authority: ES
Inventors: Jorge Benseny Mas
Original assignee: Benseny S A; BENSENY SA
Current assignee: Benseny S A; BENSENY SA
Priority date: 2011-11-25
Filing date: 2011-11-25
Publication date: 2012-02-02
Anticipated expiration: 2021-11-25
Also published as: ES1076073Y

Abstract

Luminaire with integrated heatsink, particularly an elongated configuration luminaire, comprising one or more printed circuit boards (5) with leds (6) as a light source, housed in a housing (2) to which a diffuser is attached (11), characterized in that said casing (2) is an extruded aluminum profile whose configuration has, in its front part, longitudinal elevations (3) in their respective major sides that determine a central hole (4) where the plate or plates (5) are housed with leds (6), and in its rear part, in the area opposite said central hole (4), a plurality of longitudinal fins (7) that emanate from it parallel to each other forming a heat sink on the back of the housing (2) forming part thereof; because between said fins (7), a u-shaped profile (9) is fitted which serves as a fastening element for the housing (2) for fastening the luminaire (1); and in that the luminaire (1) is completed by means of lateral covers (15) that cover and laterally close the conformation profile of the casing (2). (Machine-translation by Google Translate, not legally binding)

Description

Luminaria con disipador integrado. Luminaire with integrated heatsink.

OBJECT OF THE INVENTION

La invención, tal como expresa el enunciado de la presente memoria descriptiva, se refiere a una luminaria con disipador integrado, la cual aporta a la función a que se destina una serie de ventajas e innovadoras características que se describirán en detalle más adelante y que suponen una destacable novedad dentro de su campo de aplicación. The invention, as expressed in the statement of the present specification, refers to a luminaire with integrated heatsink, which contributes to the function to which a series of advantages and innovative features are intended, which will be described in detail below and which suppose a remarkable novelty within its field of application.

Más en particular, el objeto de la invención se centra en una luminaria del tipo que incorpora tecnología LED como fuente de luz, cuya configuración y diseño estructural, en el que de forma innovadora se contempla la existencia de un disipador de calor con una geometría particular integrado en la propia carcasa de la luminaria, se han desarrollado con la finalidad de alcanzar una eficiencia óptima de la misma, tanto en el aspecto de la eficiencia energética y lumínica como de durabilidad de sus componentes, especialmente de los LEDs empleados, ya que, gracias a dicho disipador consigue limitar la temperatura de trabajo de los mismos y, por tanto, prolongar su vida útil, consiguiendo además reducir los costes de montaje y fabricación, al estar dicho disipador integrado en la propia carcasa formando parte de la pieza que la constituye, evitando su montaje posterior. More particularly, the object of the invention focuses on a luminaire of the type that incorporates LED technology as a light source, whose configuration and structural design, in which the existence of a heat sink with a particular geometry is contemplated in an innovative way. integrated into the luminaire's own housing, they have been developed in order to achieve optimum efficiency, both in terms of energy and light efficiency and durability of its components, especially the LEDs used, since, thanks to said heatsink, it manages to limit their working temperature and, therefore, prolong its useful life, also reducing assembly and manufacturing costs, since said heatsink is integrated in the housing itself as part of the part that constitutes it , avoiding its subsequent assembly.

FIELD OF APPLICATION OF THE INVENTION

El campo de aplicación de la presente invención se enmarca dentro del sector técnico de la industria dedicada a la fabricación de luminarias, centrándose particularmente en el ámbito de las luminarias que incorporan LEDs como fuente de luz. The scope of the present invention is part of the technical sector of the industry dedicated to the manufacture of luminaires, focusing particularly on the field of luminaires that incorporate LEDs as a light source.

BACKGROUND OF THE INVENTION

En la actualidad, y como referencia al estado de la técnica, cabe mencionar que, si bien existen en el mercado múltiples tipos y modelos de luminarias que incorporan LEDs como fuente de luz, por parte del solicitante, se desconoce la existencia de ninguna que presente unas características técnicas, estructurales y constitutivas semejantes a las que presenta la luminaria con disipador integrado que aquí se preconiza, y cuyos detalles caracterizadores se encuentran convenientemente recogidos en las reivindicaciones finales que acompañan a la presente memoria descriptiva de la misma. At present, and as a reference to the state of the art, it is worth mentioning that, although there are multiple types and models of luminaires on the market that incorporate LEDs as a light source, by the applicant, the existence of none that presents is unknown. technical, structural and constitutive characteristics similar to those presented by the luminaire with integrated heatsink that are recommended here, and whose characterizing details are conveniently included in the final claims that accompany the present specification thereof.

En tal sentido, conviene señalar que los diodos LED emiten energía radiante y calor; calor que, en general, representa el 80% de la potencia total e incide de manera negativa sobre las características eléctricas y ópticas de los mismos, haciendo que se reduzca la vida útil de los mismos. Los propios fabricantes garantizan un cierto número de horas de servicio de los diodos LED, con una mínima degradación de la emisión lumínica, solo hasta una cierta temperatura, a partir de la superación de la cual, dicha degradación aumenta exponencialmente y las horas de servicio, por tanto, se ven reducidas notablemente. In this regard, it should be noted that LEDs emit radiant energy and heat; heat that, in general, represents 80% of the total power and has a negative impact on their electrical and optical characteristics, reducing their useful life. The manufacturers themselves guarantee a certain number of hours of service of the LEDs, with a minimum degradation of the light emission, only up to a certain temperature, from the overcoming of which, said degradation increases exponentially and the hours of service, therefore, they are significantly reduced.

Esto conduce a la necesidad de proporcionar una buena disipación de la citada energía calorífica que desprenden los LEDs, siendo este el objetivo esencial de la presente invención. This leads to the need to provide a good dissipation of said heat energy emitted by the LEDs, this being the essential objective of the present invention.

Cabe mencionar, no obstante, que se conocen algunas luminarias, especialmente luminarias de gran potencia, aplicables para iluminación de instalaciones o espacios de grandes dimensiones, que para reducir las altas temperaturas que alcanzan añaden un disipador de calor a la estructura de las mismas. Sin embargo dicho disipador suele consistir en una pieza añadida a la carcasa de la luminaria, lo cual complica el montaje de la misma y encarece su fabricación. Además el tipo de disipador que se añade suele consistir en un disipador de geometría convencional, y que por tanto no está especialmente diseñado para la función a que se aplica y, en consecuencia su eficiencia no es óptima. It should be mentioned, however, that some luminaires are known, especially high-power luminaires, applicable for lighting installations or large spaces, which to reduce the high temperatures they reach add a heat sink to their structure. However, said heatsink usually consists of a piece added to the luminaire housing, which complicates its assembly and makes it more expensive to manufacture. In addition, the type of heatsink that is added usually consists of a conventional geometry heatsink, and therefore is not specially designed for the function to which it is applied and, consequently, its efficiency is not optimal.

EXPLANATION OF THE INVENTION

Así, la luminaria con disipador integrado que la presente invención propone se configura como una destacable novedad dentro de su campo de aplicación, ya que, a tenor de su implementación y de forma taxativa se alcanza satisfactoriamente el objetivo anteriormente señalado de alcanzar una eficiencia óptima de la misma, tanto energética y lumínica como de duración de los componentes LED empleados, siendo ello posible gracias a la configuración y geometría del citado disipador que incorpora y que consigue limitar la temperatura de trabajo de dichos componentes, presentando además la ventaja de que dicho disipador constituye una pieza integrada en la propia carcasa de la luminaria, con lo que se facilita su montaje y se reducen costes de fabricación. Thus, the luminaire with integrated heatsink that the present invention proposes is configured as a remarkable novelty within its field of application, since, according to its implementation and in a restrictive way, the aforementioned objective of achieving an optimum efficiency of the same, both energy and light and duration of the LED components used, being possible thanks to the configuration and geometry of said heatsink that incorporates and that manages to limit the working temperature of said components, also presenting the advantage that said heatsink It is an integrated part in the luminaire's own housing, which facilitates its assembly and reduces manufacturing costs.

Para todo ello, y de forma concreta, lo que la invención propone es una luminaria con tecnología LED que consta de una carcasa conformada por un perfil de aluminio extrusionado en cuya parte posterior (entendiendo ésta por la que es opuesta a la parte que proyecta la luz) y formando parte de la misma pieza o perfil, integra un disipador de elevada eficiencia que permite limitar la temperatura de trabajo de los componentes LED, permitiendo garantizar una larga vida de los mismos. For all this, and concretely, what the invention proposes is a luminaire with LED technology that consists of a housing formed by an extruded aluminum profile in whose back part (understanding this by which it is opposite to the part that projects the light) and being part of the same part or profile, it integrates a high efficiency heatsink that allows to limit the working temperature of the LED components, allowing to guarantee a long life of the same.

Es importante destacar que la citada eficiencia del disipador integrado en la carcasa, que tiene una configuración alargada, viene dada por el hecho de que las aletas longitudinales que lo conforman presentan una configuración curvo convexa, de manera que la altura de las mismas es mayor en las centrales que en las laterales. Pero además, dichas aletas laterales dimanan de la base posterior de la carcasa en sentido divergente, consiguiendo con ello que la disipación del calor sea más efectiva. It is important to note that the said efficiency of the heatsink integrated in the housing, which has an elongated configuration, is given by the fact that the longitudinal fins that conform it have a convex curved configuration, so that their height is greater in the central ones that in the lateral ones. But in addition, said lateral fins emanate from the rear base of the housing in a divergent direction, thereby making heat dissipation more effective.

Por último, con respecto a la carcasa, cabe señalar que ésta está fabricada preferentemente en aleación 6063 de aluminio (Al Mg Si 0,5), cuyas características mecánicas proporcionan mayor facilidad de extrusión para su fabricación, además de dotarla de un aspecto de superficie correcto y un buen coloreado al anodizarse. Finally, with respect to the housing, it should be noted that it is preferably made of 6063 aluminum alloy (Al Mg Si 0.5), whose mechanical characteristics provide greater ease of extrusion for its manufacture, in addition to providing it with a surface appearance correct and a good colored when anodizing.

Siguiendo con otras características de la luminaria preconizada, cabe destacar que la carcasa presenta, en su parte anterior (la que corresponde a la zona de proyección de luz), un hueco de soporte para las placas de circuito impreso LED que quedan invisibles y estancas, así como un raíl central para insertar las tuercas de fijación de las placas de dicho circuito impreso. Continuing with other features of the recommended luminaire, it should be noted that the housing has, in its front part (the one that corresponds to the area of light projection), a support hole for the LED printed circuit boards that remain invisible and waterproof, as well as a central rail to insert the fixing nuts of the plates of said printed circuit.

Superiormente, la carcasa incorpora un difusor de luz opal que dispersa la luz uniformemente y filtra los rayos molestos o peligrosos para la vista que pueden generar los LEDs. Este difusor se acopla al perfil conformante de la carcasa mediante presión y se une a este mediante sendas piezas de goma que hacen de junta estanca para garantizar la estanqueidad del conjunto contra polvo y humedad, incluso contra un chorro directo de agua, ya que está construido para cumplir la normativa de protección IP64. Superiorly, the housing incorporates an opal light diffuser that disperses the light evenly and filters the annoying or dangerous rays that the LEDs can generate. This diffuser is coupled to the forming profile of the housing by pressure and is attached to it by means of rubber parts that act as a watertight seal to guarantee the tightness of the assembly against dust and moisture, even against a direct stream of water, since it is built to comply with IP64 protection regulations.

Lateralmente, a la carcasa se incorporan sendas tapas fijadas a la misma mediante tornillos y que, a la vez, sirven también para fijar lateralmente el difusor, habiéndose previsto entre ellas y el perfil igualmente juntas de goma que garantizan la estanqueidad del conjunto. Laterally, to the housing are incorporated two covers fixed to it by screws and, at the same time, also serve to fix the diffuser laterally, having provided between them and the profile also rubber gaskets that guarantee the tightness of the assembly.

Visto lo que antecede, se constata que la descrita luminaria con disipador integrado representa una estructura innovadora de características estructurales y constitutivas desconocidas hasta ahora para el fin a que se destina, razones que unidas a su utilidad práctica, la dotan de fundamento suficiente para obtener el privilegio de exclusividad que se solicita. Given the above, it is found that the described luminaire with integrated heatsink represents an innovative structure of structural and constitutive characteristics unknown until now for the purpose to which it is intended, reasons that together with its practical utility, provide it with sufficient foundation to obtain the exclusivity privilege requested.

DESCRIPTION OF THE DRAWINGS

Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características de la invención, se acompaña a la presente memoria descriptiva, como parte integrante de la misma, de un juego de planos, en los que con carácter ilustrativo y no limitativo se ha representado lo siguiente: To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, this descriptive report is attached, as an integral part thereof, of a set of drawings, in which with character Illustrative and not limiting, the following has been represented:

La figura número 1.- Muestra una vista en perspectiva del perfil constituyente de la carcasa con que cuenta la luminaria objeto de la invención, apreciándose en ella su configuración estructural y las aletas de su parte posterior que conforman el disipador integrado en ella. Figure number 1.- It shows a perspective view of the constituent profile of the housing that the luminaire object of the invention has, showing in it its structural configuration and the fins of its rear part that make up the heatsink integrated therein.

La figura número 2.- Muestra una vista en sección, según un corte transversal del perfil que conforma la carcasa así como del difusor que cubre su parte anterior y del soporte posterior que acopla para su fijación. Figure number 2.- It shows a sectional view, according to a cross-section of the profile that forms the housing as well as the diffuser that covers its front part and the rear support that attaches for its fixation.

La figura número 3.- Muestra una vista en perspectiva de la luminaria, representada con el difusor y el perfil de fijación desmontados, apreciándose la configuración general de la misma. Figure number 3.- Shows a perspective view of the luminaire, represented with the diffuser and the fixing profile removed, showing its general configuration.

PREFERRED EMBODIMENT OF THE INVENTION

A la vista de las mencionadas figuras, y de acuerdo con la numeración adoptada, se puede apreciar en ellas un ejemplo de realización de la luminaria objeto de la invención, la cual comprende las partes y elementos que se indican y describen en detalle a continuación. In view of the aforementioned figures, and according to the numbering adopted, an example of embodiment of the luminaire object of the invention can be seen, which comprises the parts and elements indicated and described in detail below.

Así, tal como se observa en dichas figuras, la luminaria (1) en cuestión, consistente en una luminaria de tipo empotrable de configuración rectangular alargada, se configura a partir de una carcasa (2) conformada por un perfil de aluminio extrusionado cuya configuración presenta, en su parte anterior, sendas elevaciones longitudinales (3) en sus respectivos lados mayores que determinan un hueco central (4) destinado a alojar la placa o placas (5) de circuito impreso con diodos LED (6) que incorpora la luminaria como fuente de luz, y en su parte posterior, dicha configuración de dicho perfil presenta, en la zona opuesta a la correspondiente a dicho hueco central (4), una pluralidad de aletas (7) longitudinales que dimanan del mismo y paralelas entre sí conformando un disipador de calor en la parte posterior de la carcasa (2) formando parte de la misma. Thus, as observed in said figures, the luminaire (1) in question, consisting of a recessed rectangular type luminaire, is configured from a housing (2) formed by an extruded aluminum profile whose configuration has , in its previous part, two longitudinal elevations (3) in their respective major sides that determine a central hole (4) destined to house the printed circuit board or plates (5) with LED diodes (6) that incorporates the luminaire as a source of light, and in its rear part, said configuration of said profile presents, in the area opposite to that corresponding to said central hollow (4), a plurality of longitudinal fins (7) that flow from it and parallel to each other forming a dissipator of heat on the back of the housing (2) forming part of it.

Es importante destacar que dichas aletas (7) que conforman el citado disipador, presentan, en conjunto, una configuración curvo convexa, de manera que la altura de las aletas centrales es algo mayor que la altura de las aletas (7) situadas en los extremos. Además, dichas aletas (7), especialmente las laterales situadas en los extremos, dimanan de la base posterior de la carcasa (2) en sentido divergente, de forma que la distancia entre ellas es menor en la zona de la base que en su arista distal. It is important to note that said fins (7) that make up the said heatsink, together, have a convex curved configuration, so that the height of the central fins is somewhat greater than the height of the fins (7) located at the ends . In addition, said fins (7), especially the lateral ones located at the ends, emanate from the rear base of the housing (2) in a divergent direction, so that the distance between them is smaller in the area of the base than in its edge distal

Conviene destacar, asimismo, que entre dichas aletas (7), se han previsto dos aletas más cortas (7a) con un regruesamiento (8) en su extremo, al que se acopla el regruesamiento complementario (8’) previsto en las aristas de las ramas laterales de un perfil en U (9) diseñado a tal efecto para encajar entre las aletas (7) del disipador y servir de elemento de fijación de la carcasa (2) para la sujeción de la luminaria (1), permitiendo que se acople a ella sin necesidad de utilizar tornillos. It should also be noted that between said fins (7), two shorter fins (7a) with a thickening (8) are provided at their end, to which the complementary thickening (8 ') provided in the edges of the lateral branches of a U-profile (9) designed for this purpose to fit between the fins (7) of the heatsink and serve as a housing fixing element (2) for the attachment of the luminaire (1), allowing it to be coupled to her without using screws.

Volviendo a la parte anterior de la carcasa (2), conviene destacar la existencia de un raíl (10) previsto en el hueco central (4) de dicha parte anterior del perfil conformante de la carcasa, destinado para insertar las tuercas de fijación de las placas (5) de circuito impreso con los diodos LED. Returning to the front part of the housing (2), it is worth noting the existence of a rail (10) provided in the central recess (4) of said anterior part of the housing's forming profile, intended to insert the fixing nuts of the printed circuit boards (5) with LED diodes.

Superiormente, la carcasa (2) incorpora un difusor (11) de luz que se acopla sobre el hueco central (4) mediante presión de los bordes laterales acanalados (12) que presenta sobre sendas protuberancias (13) longitudinales previstas a tal efecto en el perfil de la carcasa a ambos lados de dicho hueco central (4), habiéndose previsto en ellas sendas tiras de goma (14) que hacen de junta estanca para garantizar la estanqueidad de dicho acople. Superiorly, the housing (2) incorporates a light diffuser (11) that is coupled over the central hollow (4) by pressing the ribbed side edges (12) which presents on longitudinal protuberances (13) provided for this purpose in the profile of the housing on both sides of said central hollow (4), having provided therein rubber strips (14) that act as a seal to ensure the tightness of said coupling.

La luminaria (1) se completa mediante sendas tapas laterales (15) que cubren y cierran lateralmente el perfil conformante de la carcasa (2), fijándose a ella mediante tornillos insertados en orificios (16) previstos en ellas que roscan en correspondientes salientes (17) en forma de sector cilíndrico previstos a tal efecto en el perfil de la carcasa (2) y en el perfil en U (9) para la fijación de la luminaria. The luminaire (1) is completed by means of side covers (15) that cover and close laterally the forming profile of the housing (2), being fixed to it by means of screws inserted in holes (16) provided in them that thread in corresponding projections (17 ) in the form of a cylindrical sector provided for this purpose in the housing profile (2) and in the U-profile (9) for fixing the luminaire.

Dichas tapas laterales (15) presentan una configuración acorde a la estructura del perfil de la carcasa (2) para ajustarse al mismo y al perfil en U (9) de fijación, así como junto con el difusor (11), ya que sirven también para fijar lateralmente el mismo, habiéndose previsto entre ellas y dicho perfil igualmente juntas de goma (no representadas) que garantizan la estanqueidad del conjunto. Said side covers (15) have a configuration according to the structure of the housing profile (2) to fit the same and the U-shaped profile (9), as well as together with the diffuser (11), since they also serve to fix the same laterally, having provided between them and said profile equally rubber gaskets (not shown) that guarantee the tightness of the assembly.

Por último, señalar que, al menos una de dichas tapas laterales (15) cuenta con una perforación Finally, note that at least one of said side covers (15) has a perforation

(18) para la salida del cableado de conexión. (18) for the connection wiring output.

Descrita suficientemente la naturaleza de la presente invención, así como la manera de ponerla en práctica, no se considera necesario hacer más extensa su explicación para que cualquier experto en la materia comprenda su alcance y las ventajas que de ella se derivan, haciéndose constar que, dentro de su esencialidad, podrá ser llevada a la práctica en otras formas de realización que difieran en detalle de la indicada a título de ejemplo, y a las cuales alcanzará igualmente la protección que se recaba siempre que no se altere, cambie o modifique su principio fundamental. Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to make its explanation more extensive so that any person skilled in the art understands its scope and the advantages that derive from it, stating that, within its essentiality, it may be carried out in other embodiments that differ in detail from that indicated by way of example, and to which it will also achieve the protection that is sought provided that it does not alter, change or modify its fundamental principle .

Claims

1.- LIGHTING WITH INTEGRATED SINK, particularly an elongated configuration luminaire, comprising one or more printed circuit boards (5) with LED diodes (6) as a light source, housed in a housing (2) to which a diffuser (11), characterized by the fact that said housing (2) is an extruded aluminum profile whose configuration has, in its front part, longitudinal elevations

(3) on their respective major sides that determine a central hole (4) where the plate or plates (5) with LED diodes (6) are housed, and on its back, in the area opposite to said central hole (4) , a plurality of longitudinal fins (7) emanating therefrom parallel to each other forming a heat sink in the back of the housing (2) forming part thereof; because between said fins (7), a U-profile (9) that serves as a housing fixing element (2) for fastening the luminaire (1) is coupled; and because the luminaire (1) is completed by means of two side covers (15) that cover and close laterally the conforming profile of the housing (2).

2.- LIGHTING WITH INTEGRATED HEAT, according to claim 1, characterized in that the fins (7) that make up the heatsink (2), together have a convex curved configuration, so that the height of the central fins is greater than the height of the fins (7) located at the ends.

3.- LIGHTING WITH INTEGRATED HEAT, according to claim 2, characterized in that the fins (7) located at the ends, emanate from the rear base of the housing (2) in a divergent direction, so that the distance between them is smaller in the area of the base that in its distal edge.

4.- LIGHTING WITH INTEGRATED HEAT, according to any of claims 1-3, characterized in that between the fins (7) that make up the heatsink, two shorter fins (7a) with a thickening (8) are provided at their end, to which a complementary thickening (8 ') provided in the edges of the lateral branches of the U-profile (9) is used, which serves as a housing fixing element (2).

5.- LIGHTING WITH INTEGRATED HEAT SINK, according to any of claims 1-4, characterized in that the existence of a rail (10) is provided in the central hollow (4) of the front part of the carcass forming profile (2). .

6.- LIGHTING WITH INTEGRATED HEAT SINK, according to any of claims 1-5, characterized in that the light diffuser (11) is coupled over the central hollow (4) of the housing (2) by pressing the ribbed side edges (12 ) presenting on longitudinal protuberances (13) provided on both sides of said central hollow (4), having provided therein rubber strips (14) that act as a seal.

7.- LUMINARY WITH INTEGRATED HEAT SINK, according to any of claims 1-6, characterized in that the side covers (15) are fixed to the housing (2) by means of screws inserted in holes (16) provided therein that thread into projections (17 ) in the form of a cylindrical sector provided for this purpose in the housing profile (2).

8.- LIGHTING WITH INTEGRATED SINK, according to any of claims 1-7, characterized in that the side covers (15) have a configuration according to the structure of the housing profile (2) to fit it together with the U-profile (9) for fixing and the diffuser (11), said rubber joints being provided between them and said profile that guarantee the tightness of the assembly.

9.- LIGHTING WITH INTEGRATED HEAT, according to any of claims 1-8, characterized in that, at least one of the side covers (15) has a hole (18) for the output of the connection wiring.