ES1067765U - Solar follower (Machine-translation by Google Translate, not legally binding) - Google Patents

Solar follower (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES1067765U
ES1067765U ES200800841U ES200800841U ES1067765U ES 1067765 U ES1067765 U ES 1067765U ES 200800841 U ES200800841 U ES 200800841U ES 200800841 U ES200800841 U ES 200800841U ES 1067765 U ES1067765 U ES 1067765U
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solar
solar tracker
assembly
section
constituted
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ES200800841U
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ES1067765Y (en
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Maria Eugenia Oronoz Sagarzazu
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Photovoltaic Devices (AREA)

Abstract

Solar tracker, which is formed from a support structure anchored on a foundation, and presented a solar panel of photovoltaic panels, with the ability to be oriented both azimuthally and in the zenith direction, is characterized by the support structure is constituted by a latticework with a lower section anchored in a concrete shoe, on which is coupled, tongue and groove, a section of latticework with the appropriate length to determine the height corresponding to said support structure, counting said upper section of lattice with means which allow the coupling, also by tongue and groove, of an assembly in which the means are established on the basis of which the 360º azimuthal rotation is carried out and the zenith inclination rotation of the solar tracker itself. (Machine-translation by Google Translate, not legally binding)

Description

Seguidor solar.Solar Tracker.

Objeto de la invenciónObject of the invention

La presente invención se refiere a un seguidor solar, que presenta unas características en base a las cuales se consiguen notables mejoras tanto de fiabilidad como de reducción de costos, ya sean éstos de fabricación, de instalación, mantenimiento y explotación.The present invention relates to a follower solar, which has characteristics based on which they achieve remarkable improvements in both reliability and reduction of costs, whether manufacturing, installation, maintenance and exploitation.

El objeto de la invención es modular el seguidor solar en base a dividir en partes el conjunto del mismo, facilitando con ello el transporte, montaje, mantenimiento y reparación.The object of the invention is to modulate the follower. solar based on dividing the whole of it into parts, thereby facilitating transport, assembly, maintenance and repair.

Antecedentes de la invenciónBackground of the invention

Son numerosos los tipos y formas de estructurar los seguidores solares, aunque con el denominador común de resultar siempre estructuras complejas, difíciles de transportar debido a su gran volumetría y peso, resultando difícil igualmente la reparación, mantenimiento e incluso sustitución de determinadas partes o componentes del seguidor.There are numerous types and ways of structuring solar trackers, although with the common denominator of being always complex structures, difficult to transport due to its great volumetry and weight, proving equally difficult repair, maintenance and even replacement of certain parts or components of the follower.

Por otra parte, los seguidores solares presentan de forma generalizada un panel captador como cuerpo monopieza, lo que en determinados tamaños supone una gran volumetría, que tiene dificultades tanto para el transporte como para su montaje.On the other hand, solar trackers present in general, a sensor panel as a single piece body, what which in certain sizes supposes a large volumetry, which has difficulties for both transport and assembly.

Descripción de la invenciónDescription of the invention

El seguidor solar que se preconiza, ha sido concebido para resolver la problemática anteriormente expuesta, estableciendo primeramente una división del captador solar, ya que en lugar de estar constituido por una única unidad o cuerpo monopieza como es tradicional, está dividido, al menos, en dos partes, lo que permite una mejor manipulación, mas fácil transporte y mayor comodidad a la hora de llevar a cabo el montaje.The solar tracker that is recommended, has been designed to solve the problem described above, establishing first a division of the solar collector, since instead of being constituted by a single unit or body car as is traditional, is divided into at least two parts, allowing better handling, easier transport and greater comfort when carrying out the assembly.

En cuanto a la estructura soporte del seguidor solar, la misma en lugar de estar constituida por las clásicas columnas, está formada por una celosía metálica dividida también en partes, con una parte inferior de anclaje a una zapata de hormigón y un tramo superior que puede tener la longitud que se desee dependiendo de la altura que vaya a tener el seguidor solar, acoplándose entre si ambas partes de forma machihembrada y afianzándose mediante tornillos pasantes por las mismas, contando superiormente con una estructura giratoria donde se establecen los medios de giro para el propio seguidor solar, y cuya estructura giratoria está formada inicialmente por dos cuerpos, uno acoplado a la parte superior de la estructura de la celosía, y otro como superior que se dispone superpuestamente al anterior, con la interposición de una corona de giro orientada y vinculada a sendos aros dispuestos enfrentadamente en las dos comentadas partes o cuerpos, de manera que sobre el superior se montan los medios de orientación cenital del seguidor solar, ya que el giro acimutal se establece mediante las comentadas tres partes o cuerpos, base inferior, corona de giro dentada y base superior, acopladas entre si, mientras que el giro o inclinación en sentido cenital se lleva a cabo mediante un eje al que están solidarizadas dos levas relacionadas con sendos tambores, a través de un cabestrante, que son accionados mediante un moto-reductor con freno, todo ello montado en el cuerpo superior de los que constituyen el conjunto de giro cenital, de manera que en base a esas dos levas y su relación con los tambores accionados por el moto-reductor, se consigue el giro del eje comentado y al que están solidarizadas las aludidas levas, estando ese eje de giro relacionado con sendos soportes laterales para los brazos a los que van fijados los propios paneles solares, es decir las dos unidades que constituyen el conjunto captador del seguidor solar.As for the support structure of the follower solar, the same instead of being constituted by the classic columns, is formed by a metal lattice also divided into parts, with an inferior part of anchorage to a concrete footing and an upper section that can be the desired length depending on the height of the solar tracker, engaging each other both tongue and groove and securing by means of screws through them, counting superiorly with a rotating structure where the turning means for the solar tracker itself, and whose structure rotating is initially formed by two bodies, one coupled to the top of the lattice structure, and another as superior that is superimposed to the previous one, with the interposition of a rotating crown oriented and linked to two hoops arranged facing each other in the two commented parts or bodies, so that the means of zenith orientation of the solar tracker, since the azimuthal gyrus is establishes by means of the commented three parts or bodies, base lower, toothed crown and upper base, coupled between yes, while the zenith or tilt in the zenith direction is carried carried out by means of an axis to which two cams are joined related to two drums, through a winch, which they are operated by a motor-reducer with brake, all mounted on the upper body of those that constitute the zenithal joint assembly, so that based on those two cams and its relationship with the drums powered by the motor-reducer, the rotation of the commented axis is achieved and to which the aforementioned cams are in solidarity, being that axis of turn related to two lateral supports for the arms to those that are fixed the solar panels themselves, that is to say the two units that constitute the follower sensor assembly solar.

Además, se ha previsto que el seguidor se complemente con un panelamiento de la estructura de celosía, así como un balconcillo de mantenimiento a base de una estructura metálica en la que un operario puede efectuar labores de mantenimiento sobre el cuadro de control eléctrico correspondiente, incluyendo una escalera interna de acceso, así como una puerta de acceso a través del panelamiento e incluso una escalera externa y que sirve de acceso a la parte superior del seguidor, para realizar labores de montaje y mantenimiento.In addition, the follower is expected to complement with a paneling of the lattice structure as well as a maintenance balcony based on a structure metal in which an operator can perform work of maintenance on the corresponding electrical control panel, including an internal access staircase, as well as a door access through paneling and even an external staircase and which serves as access to the top of the follower, to perform assembly and maintenance work.

Descripción de los dibujosDescription of the drawings

Para complementar la descripción que seguidamente se va a realizar y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that then it will be done and in order to help a better understanding of the features of the invention, according to a preferred example of practical realization thereof, is accompanied as an integral part of that description, a set of drawings in where illustrative and not limiting, it has been represented the next:

La figura 1.- Muestra una representación según una perspectiva general del seguidor solar realizado de acuerdo con el objeto de la invención, dejándose ver claramente la estructura soporte constituyendo una celosía anclada sobre una base de hormigón.Figure 1.- Shows a representation according to an overview of the solar tracker made according to the object of the invention, showing the structure clearly support constituting a lattice anchored on a base of concrete.

La figura 2.- Muestra una vista también en perspectiva del mismo seguidor solar, aunque con diferente angulación, y en donde se deja ver el panelamiento de la estructura de celosía, el balconcillo de mantenimiento, la puerta de acceso y la escalera de acceso a la parte superior.Figure 2.- Shows a view also in perspective of the same solar tracker, although with different angulation, and where you can see the paneling of the structure lattice, maintenance balcony, access door and the access ladder to the top.

La figura 3.- Muestra una vista en explosión de las partes correspondientes al tramo de celosía empotrable en la zapata o base de hormigón, al tramo de celosía intermedio constituyendo la estructura de soporte, y al conjunto giratorio superior.Figure 3.- Shows an exploded view of the parts corresponding to the section of recessed lattice in the concrete footing or base, to the intermediate lattice section constituting the support structure, and the rotating assembly higher.

La figura 4.- Muestra una vista también según una perspectiva en explosión de las tres partes o cuerpos que forman el conjunto giratorio acimutal del seguidor solar, y cuyas tres partes: son una base inferior acoplada por enchufe sobre el extremo superior de la estructura de celosía; una base superior superpuesta a la anterior, y una corona de giro dentada intercalada entre ambas.Figure 4.- Shows a view also according to an exploding perspective of the three parts or bodies that they form the azimuthal rotating assembly of the solar tracker, and whose three parts: they are a lower base coupled by plug on the upper end of the lattice structure; a top base superimposed on the previous one, and a crown of serrated rotation intercalated between both.

La figura 5.- Muestra dos vistas en perspectiva de sendas posiciones diferentes correspondientes a los medios que intervienen en el giro o inclinación cenital del seguidor solar.Figure 5.- Shows two perspective views of different positions corresponding to the means that they intervene in the turn or zenith inclination of the follower solar.

Realización preferente de la invenciónPreferred Embodiment of the Invention

Como se puede ver en las figuras referidas, el seguidor solar objeto de la invención se constituye mediante una estructura soporte formada por un tramo inferior (1) de celosía, a base de perfiles metálicos, que queda empotrado en una zapata de hormigón (2) y que superiormente presenta unas prolongaciones (3) con un orificio (4), de manera que sobre esas prolongaciones (3) se acopla un segundo tramo de celosía (5) de las mismas características pero de mayor o menor longitud dependiendo de la altura que se quiera dar al seguidor solar, de manera que los extremos inferiores de este tramo de celosía (5) se acoplan por enchufe sobre las prolongaciones superiores (3) del tramo de empotramiento (1) inferior, contando esos extremos inferiores de acoplamiento del tramo intermedio de celosía (5) con orificios (6) que quedarán enfrentados a los orificios (4) de los salientes (3) para mediante bulones o medios de anclaje apropiados llevar a cabo la unión entre si del tramo inferior empotrable (1) y el tramo intermedio o superior (5) de la estructura de celosía que constituye el soporte general del seguidor.As you can see in the referred figures, the solar tracker object of the invention is constituted by a support structure formed by a lower section (1) of lattice, to base of metal profiles, which is embedded in a shoe concrete (2) and that superiorly presents some extensions (3) with a hole (4), so that on these extensions (3) couple a second section of lattice (5) thereof characteristics but of greater or lesser length depending on the height that you want to give to the solar tracker, so that the lower ends of this lattice section (5) are coupled by plug over the upper extensions (3) of the section of lower embedment (1), counting those lower ends of coupling of the intermediate lattice section (5) with holes (6) that will face the holes (4) of the projections (3) for using appropriate bolts or anchoring means to carry out the joint between the recessed lower section (1) and the section intermediate or higher (5) of the lattice structure that constitutes the general support of the follower.

Ese tramo de celosía (5) cuenta superiormente con los mismos salientes (3) y orificios (4) que los previstos en la parte superior del tramo inferior (1), para permitir el acoplamiento de otro tramo o bien el acoplamiento del conjunto mediante el que se lleva a cabo el giro acimutal y cenital del seguidor solar, conjunto que se ha referenciado con (7) en la figura 3 y que comprende una parte para el giro acimutal y otra parte para el giro cenital, de manera que la parte para giro acimutal está constituida por dos cuerpos (8 y 9) y una corona intermedia (10) con un dentado externo (10'), de manera que el cuerpo (8), a través de sus prolongaciones (11), situadas inferiormente, se acopla por enchufe sobre las prolongaciones superiores (3) del tramo de celosía intermedio (5), contando ese cuerpo (8) con un anillo (12), mientras que el cuerpo (9) cuenta con otro anillo (13), de manera que entre esos anillos (12 y 13) queda montada la corona de giro (10) con su dentado periférico (10'), como se observa en la figura 4. En base a esta disposición, se lleva a cabo el giro acimutal, giro que corresponderá a 360°, contando el cuerpo superior (9) con una parte lateral (14) soldada a la misma para alojamiento del reductor de giro.That section of lattice (5) counts superiorly with the same projections (3) and holes (4) as provided in the upper part of the lower section (1), to allow coupling of another section or the coupling of the set by means of which the azimuthal and zenithal rotation of the solar tracker, set that has been referenced with (7) in the Figure 3 and comprising a part for the azimuth turn and another part for the zenith turn, so that the part for turn Azimuthal consists of two bodies (8 and 9) and a crown intermediate (10) with an external teeth (10 '), so that the body (8), through its extensions (11), located inferiorly, it is connected by plug on the extensions upper (3) of the intermediate lattice section (5), counting that body (8) with a ring (12), while the body (9) counts with another ring (13), so that between those rings (12 and 13) the rotating crown (10) with its peripheral teeth is mounted (10 '), as seen in Figure 4. Based on this provision, the azimuthal rotation is carried out, which corresponds to 360 °, counting the upper body (9) with a side part (14) welded to the same for housing of the gear reducer.

Por su parte, los medios que intervienen en el giro cenital o inclinación del seguidor solar, se basan en un soporte (15) fijado al cuerpo (9), sobre cuyo soporte va montado un moto-reductor (16) mediante el que se accionan dos tambores (17), que pueden ser frenados por ese moto-reductor (16) y a cuyos tambores (17) están relacionadas, a través de un cabestrante (18), una pareja de levas (19) solidarizadas a un eje (20), que a través de unos soportes laterales (21) permiten transmitir el giro en uno u otro sentido a tales soportes (21) vinculados a los brazos laterales (22), para giro de éstos y sobre los que van solidarizados los propios paneles solares (23) que, como se ve en las figuras 1 y 2, están divididos en dos partes, es decir que comprenden dos unidades.For its part, the media involved in the zenithal rotation or inclination of the solar tracker, are based on a support (15) fixed to the body (9), on whose support is mounted a motor reducer (16) by means of which two are operated drums (17), which can be stopped by that motor-reducer (16) and whose drums (17) are related, through a winch (18), a pair of cams (19) in solidarity with an axis (20), which through supports lateral (21) allow to transmit the turn in one way or another to such supports (21) linked to the side arms (22), for turn of these and on which the panels themselves are in solidarity solar (23) which, as seen in figures 1 and 2, are divided in two parts, that is to say that they comprise two units.

De esta manera y como ya se ha comentado, el seguidor solar puede realizar un giro acimutal de 360° en base al conjunto que forman los cuerpos (8, 9 y 10), accionándose mediante un moto-reductor que cuando gira en un sentido hace girar, por ejemplo, en sentido horario, el conjunto del seguidor solar, mientras que si el moto-reductor gira en sentido contrario, entonces el seguidor solar girará en sentido antihorario, de manera que tanto en uno como en otro caso puede girar 360°.In this way and as already mentioned, the solar tracker can perform a 360 ° azimuth turn based on the set that form the bodies (8, 9 and 10), acting by a motor-reducer that when it turns one way makes turn, for example, clockwise, the follower assembly solar, while if the motor-reducer rotates in opposite direction, then the solar tracker will turn in the direction counterclockwise, so that in both cases you can rotate 360 °

Por su parte, en base a los medios que forman tambores (17), moto-reductor (16) y las levas (19) con la vinculación a los tambores (17) a través del cabestrante (18), se puede llevar a cabo la inclinación o giro de los paneles solares (23) en sentido cenital, de manera que accionando el moto-reductor (16) que va asociado a un freno, en uno u otro sentido, se consigue que el eje (20) y por tanto el conjunto que forman los soportes (21) y brazos (22), giren de 0° a 45° respecto al eje horizontal.For its part, based on the means that form drums (17), moto-reducer (16) and cams (19) with the connection to the drums (17) through the winch (18), the inclination or rotation of the panels can be carried out solar (23) in zenith sense, so that by activating the moto-reducer (16) that is associated with a brake, in one way or another, it is achieved that the axis (20) and therefore the set that form the supports (21) and arms (22), turn from 0 ° to 45 ° with respect to the horizontal axis.

Por otro lado, es de destacar el hecho de que la estructura del soporte que forma el tramo de celosía inferior (1) y el tramo de celosía superior o intermedio (5), se complementa con un panelamiento (25) y con una puerta (26) a través de la cual se puede acceder al interior de la estructura y ascender, a través de una escalera interna, hasta un balconcillo (27) de mantenimiento, de manera que un operario situado en él puede llevar a cabo operaciones de mantenimiento del conjunto del seguidor solar, y desde cuyo balconcillo (27) ese operario puede acceder hasta la parte superior a través de una escalera (28), como se deja ver en la figura 2.On the other hand, it is noteworthy that the support structure that forms the lower lattice section (1) and the upper or intermediate lattice section (5) is complemented by a paneling (25) and with a door (26) through which you can access the interior of the structure and ascend, through an internal staircase, to a maintenance balcony (27), so that an operator located in it can carry out maintenance operations of the solar tracker assembly, and from whose balcony (27) that operator can access to the top through a ladder (28), as shown in Figure 2

Claims (6)

1. Seguidor solar, que constituyéndose a partir de una estructura soporte anclada sobre una cimentación, y presentado un panel solar de placas fotovoltaicas, con facultad de orientarse tanto en sentido acimutal como en sentido cenital, se caracteriza porque la estructura soporte está constituida por una celosía con un tramo inferior anclado en una zapata de hormigón, sobre el que se acopla, de forma machihembrada, un tramo de celosía superior con la longitud conveniente para determinar la altura correspondiente a dicha estructura soporte, contando superiormente dicho tramo superior de celosía con medios que permiten el acoplamiento, también por machihembrado, de un conjunto en el que están establecidos los medios en base a los cuales se realiza el giro acimutal de 360° y el giro de inclinación cenital del propio seguidor solar.1. Solar tracker, which being constituted from a support structure anchored on a foundation, and presented a solar panel of photovoltaic panels, with the power to orient both azimuthal and zenithal sense, is characterized in that the support structure is constituted by a latticework with a lower section anchored in a concrete footing, on which, in a tongue and groove, a section of upper lattice is coupled with the convenient length to determine the height corresponding to said support structure, said upper section of latticework being uppermost with means which allow the coupling, also by tongue and groove, of a set in which the means are established on the basis of which the azimuthal rotation of 360 ° and the zenith inclination of the solar tracker itself is performed. 2. Seguidor solar, según reivindicación 1ª, caracterizado porque el panel solar de las placas fotovoltaicas está formado por dos unidades independientes que, en combinación con la modularidad que determina la estructura de celosía correspondiente al soporte del conjunto, posibilita una simplificación, mejor transporte y montaje del conjunto del seguidor solar.2. Solar tracker, according to claim 1, characterized in that the solar panel of the photovoltaic panels is formed by two independent units which, in combination with the modularity that determines the lattice structure corresponding to the support of the assembly, allows a simplification, better transport and assembly of the solar tracker assembly. 3. Seguidor solar, según reivindicaciones anteriores, caracterizado porque la estructura de la celosía es metálica y los medios de acoplamiento de los tramos de la misma y del conjunto giratorio, lo constituyen salientes y alojamientos complementarios con orificios enfrentados para el paso de bulones de fijación entre partes.3. Solar tracker, according to previous claims, characterized in that the structure of the latticework is metallic and the coupling means of the sections thereof and of the rotating assembly are constituted by complementary projections and housings with facing holes for the passage of fixing bolts. between parties 4. Seguidor solar, según reivindicaciones anteriores, caracterizado porque los medios que realizan el giro acimutal de 360° están constituidos por tres cuerpos, uno inferior y acoplable por machihembrado sobre el extremo superior de la estructura de celosía, uno superior dispuesto de forma superpuesta al anteriormente referido, y uno intermedio entre ambos, constituido éste último por una corona con un dentado externo vinculado entre sendos anillos previstos en dichos dos cuerpos superpuestos, estableciendo la corona el medio de giro para el conjunto, llevándose a cabo el accionamiento mediante un moto-reductor.4. Solar tracker, according to previous claims, characterized in that the means that perform the azimuthal rotation of 360 ° are constituted by three bodies, one lower and dockable by tongue and groove on the upper end of the lattice structure, an upper one arranged superimposed on the referred to above, and an intermediate one between the two, the latter consisting of a crown with an external teeth connected between two rings provided in said two superimposed bodies, the crown establishing the means of rotation for the assembly, the drive being carried out by means of a motorcycle. reducer. 5. Seguidor solar, según reivindicaciones anteriores, caracterizado porque los medios de giro e inclinación de los paneles solares, lo constituyen una pareja de tambores accionados simultáneamente mediante un moto-reductor con freno, tambores que están relacionados con unas levas a través de un cabestrante, y cuyas levas están solidarizadas a un eje que en sus extremos se vincula a sendos soportes sobre los que montan los correspondientes brazos laterales de fijación de los paneles solares.5. Solar tracker, according to previous claims, characterized in that the means of rotation and inclination of the solar panels, constitute a pair of drums operated simultaneously by a motor-reducer with brake, drums that are related to cams through a winch , and whose cams are in solidarity with an axis that at its ends is linked to two supports on which the corresponding lateral fixing arms of the solar panels are mounted. 6. Seguidor solar, según reivindicaciones anteriores, caracterizado porque la estructura de celosía correspondiente al soporte del seguidor solar, se complementa con un panelamiento externo dotado de una puerta de acceso y una escalera interna que permite a un operario escalar hasta un balconcillo para mantenimiento, por encima del cual se ha previsto un tramo de escalera de acceso a los medios de giro tanto en el eje acimutal como en el eje cenital.6. Solar tracker, according to previous claims, characterized in that the lattice structure corresponding to the support of the solar tracker, is complemented by an external paneling equipped with an access door and an internal staircase that allows an operator to climb up to a balcony for maintenance, above which a section of access ladder to the turning means is provided both in the azimuthal axis and in the zenith axis.
ES200800841U 2008-04-22 2008-04-22 SOLAR TRACKER Expired - Fee Related ES1067765Y (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2607741A4 (en) * 2010-08-16 2017-11-15 Cheng Du Zhong Shun Science And Technology Developent Co., Ltd. Cam turntable, sun-tracking device equipped with same and control method for the device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2607741A4 (en) * 2010-08-16 2017-11-15 Cheng Du Zhong Shun Science And Technology Developent Co., Ltd. Cam turntable, sun-tracking device equipped with same and control method for the device

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