ES1285444U - LOCKING DEVICE FOR SOLAR TRACKER (Machine-translation by Google Translate, not legally binding) - Google Patents

LOCKING DEVICE FOR SOLAR TRACKER (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES1285444U
ES1285444U ES202132487U ES202132487U ES1285444U ES 1285444 U ES1285444 U ES 1285444U ES 202132487 U ES202132487 U ES 202132487U ES 202132487 U ES202132487 U ES 202132487U ES 1285444 U ES1285444 U ES 1285444U
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Spain
Prior art keywords
hydraulic cylinder
solar tracker
chambers
photovoltaic modules
axis
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Granted
Application number
ES202132487U
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Spanish (es)
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ES1285444Y (en
Inventor
Garcia Juan Manuel Gomez
Molinero Abraham Ruiz
Francisco Sanz Sergio San
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Trina Solar Spain SLU
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Trina Solar SL
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Priority to ES202132487U priority Critical patent/ES1285444Y/en
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Publication of ES1285444Y publication Critical patent/ES1285444Y/en
Priority to PCT/ES2022/070786 priority patent/WO2023111371A1/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00Arrangements for moving or orienting solar heat collector modules
    • F24S30/40Arrangements for moving or orienting solar heat collector modules for rotary movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00Arrangements for controlling solar heat collectors
    • F24S50/60Arrangements for controlling solar heat collectors responsive to wind
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • H02S20/30Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

Blocking device for a solar tracker, comprising at least one hydraulic cylinder (3) intended to be placed in the solar tracker provided with photovoltaic modules that are incorporated on an axis (1) provided with a rotation drive to orient the photovoltaic modules towards the sun with respect to a support pole (2) for the photovoltaic modules, characterized in that the hydraulic cylinder (3) has two independent chambers (4 and 5) intended to contain oil, between which a piston (6) is arranged at the that two respective rods (7 and 8) are joined, which extend respectively through the chambers (4 and 5), each of them coming out of one end of the hydraulic cylinder (3), while the chambers (4 and 5) are They are connected to each other by means of respective ducts (9 and 11) between which a solenoid valve (10) is incorporated that controls the passage of oil circulation between the aforementioned chambers (4) and (5) when the piston moves (6), where the device is configured to be arranged in the solar tracker in such a way that the end of one stem (7) is connected to the axis (1) of rotation and the end of the other stem (8) is freely movable, with the hydraulic cylinder (3) fixed to the post (2). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPCIÓNDESCRIPTION

DISPOSITIVO DE BLOQUEO PARA SEGUIDOR SOLARLOCKING DEVICE FOR SOLAR TRACKER

Sector de la técnicaTechnical sector

La presente invención está relacionada con los seguidores solares formados por paneles de módulos fotovoltaicos que van montados sobre un eje que es actuado por un accionamiento de giro para orientar dichos paneles siguiendo el movimiento del sol, proponiendo un dispositivo de bloqueo para mantener los paneles estáticos, contra la acción del viento u otras causas de incidencia cuando el accionamiento del eje de giro se encuentra desactivado.The present invention is related to solar trackers formed by panels of photovoltaic modules that are mounted on a shaft that is actuated by a rotary drive to orient said panels following the movement of the sun, proposing a blocking device to keep the panels static, against the action of the wind or other causes of incidence when the activation of the axis of rotation is deactivated.

Estado de la técnicaState of the art

Los seguidores solares comprenden, generalmente, unos paneles que incluyen módulos fotovoltaicos para captar la energía solar y transformarla en electricidad, yendo dichos paneles incorporados sobre un eje que dispone de un accionamiento de giro ya sea por acción de un módulo de giro o por actuador lineal para orientar los paneles siguiendo el movimiento del sol, con el fin de conseguir en todo momento la mayor eficiencia de captación de la energía solar.Solar trackers generally comprise panels that include photovoltaic modules to capture solar energy and transform it into electricity, said panels being incorporated on an axis that has a rotation drive either by the action of a rotation module or by a linear actuator. to orient the panels following the movement of the sun, in order to achieve the highest efficiency in capturing solar energy at all times.

En ese montaje el sistema de accionamiento del eje de giro se dispone, por ejemplo, en la zona central de la longitud del eje y en las zonas extremas se incorporan unos dispositivos de bloqueo para asegurar la inmovilidad de los paneles de módulos fotovoltaicos ante la acción del viento u otras causas incidentes, cuando el seguidor solar se para.In this assembly, the drive system for the axis of rotation is arranged, for example, in the central area of the length of the axis and in the extreme areas, locking devices are incorporated to ensure the immobility of the photovoltaic module panels before the action wind or other incident causes, when the solar tracker stops.

Para ese bloqueo del seguidor solar cuando está parado existen soluciones de dispositivos de bloqueo formados por cilindros hidráulicos, los cuales funcionan acompañando el movimiento de los paneles del seguidor solar cuando el accionamiento de orientación de dichos paneles está activado y cuando el accionamiento se para dichos cilindros hidráulicos establecen un bloqueo que impide el movimiento del eje de los paneles, asegurando así la inmovilidad de los paneles del seguidor solar en una posición totalmente estática.For this blocking of the solar tracker when it is stopped, there are blocking device solutions made up of hydraulic cylinders, which work by accompanying the movement of the solar tracker panels when the orientation drive of said panels is activated and when the drive stops said cylinders. hydraulics establish a lock that prevents the movement of the axis of the panels, thus ensuring the immobility of the solar tracker panels in a totally static position.

Sin embargo, los dispositivos de bloqueo que se utilizan convencionalmente en los seguidores solares presentan formaciones y montajes que los hacen muy complicados y que pueden requerir disposiciones funcionales complejas, como en el caso de cilindros hidráulicos de un solo vástago asociado a un pistón que se desplaza entre dos cámaras de aceite, en las cuales el volumen de aceite que se desaloja de una de las cámaras es diferente del que entra en la otra cámara, debido al volumen que ocupa el vástago que solo se extiende por el interior de una de las cámaras, debiendo ser compensada la diferencia del volumen que se tiene que llenar de aceite en una y otra cámara.However, locking devices conventionally used in solar trackers have formations and mountings that make them very complicated and may require complex functional arrangements, as in the case of hydraulic cylinders of a single rod associated with a piston that moves between two oil chambers, in which the volume of oil that is dislodged from one of the chambers is different from that which enters the other chamber, due to the volume occupied by the rod that is only extends inside one of the chambers, and the difference in volume to be filled with oil in both chambers must be compensated.

Objeto de la invenciónObject of the invention

De acuerdo con la presente invención se propone un dispositivo de bloqueo para los seguidores solares, el cual se ha desarrollado con unas características constructivas y funcionales que permiten salvar de una manera eficiente los inconvenientes de los dispositivos de bloqueo convencionales que se utilizan actualmente en los seguidores solares.In accordance with the present invention, a blocking device for solar trackers is proposed, which has been developed with constructive and functional characteristics that efficiently overcome the drawbacks of conventional blocking devices currently used in trackers. solar.

Este dispositivo de bloqueo objeto de la invención comprende al menos un cilindro hidráulico, preferentemente un cilindro en cada extremo del seguidor solar. Cada cilindro hidráulico incorpora dos vástagos, de manera que uno de los vástagos se sujeta por su extremo al eje de giro preferentemente acoplándose a una palanca, barra o elemento similar que a su vez está unida a dicho eje de giro. Mientras que el cuerpo del cilindro hidráulico se sujeta a un poste de la estructura de sustentación de los módulos fotovoltaicos, quedando libre el otro vástago del cilindro hidráulico.This blocking device object of the invention comprises at least one hydraulic cylinder, preferably a cylinder at each end of the solar tracker. Each hydraulic cylinder incorporates two rods, such that one of the rods is fastened at its end to the axis of rotation, preferably coupling to a lever, bar or similar element which in turn is attached to said axis of rotation. While the body of the hydraulic cylinder is attached to a post of the support structure of the photovoltaic modules, the other rod of the hydraulic cylinder is free.

En la formación del cilindro hidráulico que constituye el dispositivo de bloqueo los dos vástagos van unidos longitudinalmente entre sí por medio de un pistón intermedio, incluyéndose cada uno de los vástagos parcialmente en una cámara independiente de aceite, con conexión entre las cámaras respectivas de ambos vástagos por medio de respectivos conductos entre los que se dispone una electroválvula que controla el paso del aceite por dichos conductos en la circulación entre las cámaras de ambos vástagos.In the formation of the hydraulic cylinder that constitutes the blocking device, the two rods are joined longitudinally to each other by means of an intermediate piston, each of the rods being partially included in an independent oil chamber, with connection between the respective chambers of both rods. by means of respective ducts between which there is an electrovalve that controls the passage of oil through said ducts in the circulation between the chambers of both rods.

Con esa disposición, el movimiento del pistón que une a los vástagos del cilindro hidráulico está condicionado por la electroválvula, la cual se activa cuando el accionamiento del movimiento del seguidor solar se pone en funcionamiento al recibir alimentación eléctrica, de manera que al activarse la electroválvula permite el paso de aceite a través de los conductos de comunicación entre las dos cámaras del cilindro hidráulico, mientras que cuando el accionamiento del movimiento del seguidor solar se para, se corta la alimentación eléctrica de la electroválvula y ésta cierra el paso del aceite entre las cámaras del cilindro hidráulico. With this arrangement, the movement of the piston that joins the rods of the hydraulic cylinder is conditioned by the solenoid valve, which is activated when the drive for the movement of the solar tracker is activated when receiving power, so that when the solenoid valve is activated allows the passage of oil through the communication ducts between the two chambers of the hydraulic cylinder, while when the movement of the solar tracker stops, the electric power supply to the solenoid valve is cut off and it closes the passage of oil between the hydraulic cylinder chambers.

Por lo tanto, el sistema de bloqueo por medio del dispositivo preconizado acompaña al accionamiento del movimiento del seguidor solar cuando dicho accionamiento está activado, sirviendo como medio de bloqueo del movimiento cuando el accionamiento y la electroválvula dejan de recibir corriente eléctrica.Therefore, the blocking system by means of the recommended device accompanies the actuation of the solar tracker movement when said actuation is activated, serving as a means of blocking the movement when the actuation and the solenoid valve stop receiving electrical current.

En esta realización del dispositivo de bloqueo el cilindro hidráulico con dos vástagos tiene la ventaja de que el volumen contenedor de aceite es igual en las dos cámaras del cilindro hidráulico si los dos vástagos son del mismo diámetro, de manera que no hay diferencia de capacidad contenedora de aceite entre las dos cámaras, por lo que no hay que establecer compensaciones para igualar la capacidad de las dos cámaras como es necesario en el estado de la técnica en el que se necesita un depósito de aceite adicional para compensar la diferencia de contenido entre las cámaras. Asimismo, el control del paso de aceite entre ambas cámaras del cilindro hidráulico puede realizarse con precisión mediante una sola electroválvula, lo cual repercute en beneficio económico y mejora de espacio en el montaje del sistema de bloqueo de los seguidores solares con respecto al estado de la técnica en el que es necesario disponer de dos electroválvulas y el consecuente cableado adicional.In this embodiment of the blocking device, the hydraulic cylinder with two rods has the advantage that the oil container volume is equal in the two chambers of the hydraulic cylinder if the two rods are of the same diameter, so that there is no difference in container capacity. of oil between the two chambers, so there is no need to establish compensations to equalize the capacity of the two chambers as is necessary in the state of the art in which an additional oil tank is needed to compensate for the difference in content between the two chambers. cameras. Likewise, the control of the passage of oil between both chambers of the hydraulic cylinder can be carried out with precision by means of a single solenoid valve, which has an economic benefit and improves space in the assembly of the blocking system of the solar trackers with respect to the state of the technique in which it is necessary to have two solenoid valves and the consequent additional wiring.

Por todo ello, el dispositivo de bloqueo objeto de la invención resulta de características muy ventajosas para la aplicación a la que está destinado, adquiriendo vida propia y carácter preferente respecto de los dispositivos convencionales que se utilizan actualmente para la misma aplicación.For all these reasons, the blocking device that is the object of the invention has very advantageous characteristics for the application for which it is intended, acquiring a life of its own and preferential character with respect to the conventional devices that are currently used for the same application.

Descripción de las figurasDescription of the figures

La figura 1 muestra una perspectiva explosionada del montaje de aplicación de un dispositivo de bloqueo según la invención en un seguidor solar.Figure 1 shows an exploded perspective view of the application assembly of a blocking device according to the invention in a solar tracker.

La figura 2 es una perspectiva del cilindro hidráulico que constituye el dispositivo de bloqueo según la invención.Figure 2 is a perspective view of the hydraulic cylinder that constitutes the blocking device according to the invention.

La figura 3 es una vista de sección del cilindro hidráulico del dispositivo de bloqueo objeto de la invención.Figure 3 is a sectional view of the hydraulic cylinder of the locking device object of the invention.

La figura 4 es una vista frontal del cilindro hidráulico fijado en el seguidor solar. Figure 4 is a front view of the hydraulic cylinder fixed to the solar tracker.

La figura 5 es un diagrama de flujo del proceso de funcionamiento del cilindro hidráulico.Figure 5 is a flowchart of the operation process of the hydraulic cylinder.

Descripción detallada de la invenciónDetailed description of the invention

El objeto de la invención se refiere a un dispositivo de bloqueo destinado para mantener estático un seguidor solar cuando su accionamiento de giro está desactivado, disponiéndose dicho dispositivo de bloqueo en el seguidor solar compuesto por paneles de módulos fotovoltaicos incorporados sobre un eje (1) que dispone de un accionamiento de giro, por acción de un módulo de giro o por un actuador lineal, para orientar los paneles de módulos fotovoltaicos hacia el sol y un poste (2) de sustentación de los módulos fotovoltaicos.The object of the invention refers to a blocking device designed to keep a solar tracker static when its rotation drive is deactivated, said blocking device being arranged in the solar tracker composed of panels of photovoltaic modules incorporated on an axis (1) that It has a rotary drive, by the action of a rotary module or by a linear actuator, to orient the photovoltaic module panels towards the sun and a support pole (2) for the photovoltaic modules.

El dispositivo de bloqueo para ese fin, según la invención, comprende al menos un cilindro hidráulico (3) y preferentemente uno en cada extremo del seguidor solar, estando definidas en cada cilindro hidráulico (3) dos cámaras (4 y 5) independientes destinadas para contener aceite, estando dispuesto entre dichas cámaras (4 y 5) un pistón (6) que las separa, de manera que el desplazamiento de ese pistón (6) a lo largo del cilindro hidráulico (3) hace que el volumen de las mencionadas cámaras (4 y 5) varíe, aumentado en una y disminuyendo en la otra.The blocking device for this purpose, according to the invention, comprises at least one hydraulic cylinder (3) and preferably one at each end of the solar tracker, two independent chambers (4 and 5) being defined in each hydraulic cylinder (3) intended for contain oil, being arranged between said chambers (4 and 5) a piston (6) that separates them, so that the movement of said piston (6) along the hydraulic cylinder (3) makes the volume of the mentioned chambers (4 and 5) vary, increased in one and decreased in the other.

Al pistón (6) van unidos sendos vástagos (7) y (8) preferentemente de igual diámetro, los cuales se extienden respectivamente por las cámaras (4) y (5), saliendo cada uno de ellos por un extremo del cilindro hidráulico (3), mientras que las cámaras (4 y 5) quedan comunicadas entre sí por medio de respectivos conductos (9 y 11) que permiten el paso de aceite entre ellas, yendo incorporada entre dichos conductos (9 y 11) una electroválvula (10), la cual controla el paso de la circulación del aceite entre las dos cámaras (4 y 5).Two rods (7) and (8) preferably of the same diameter are attached to the piston (6), which extend respectively through the chambers (4) and (5), each of them coming out of one end of the hydraulic cylinder (3). ), while the chambers (4 and 5) are connected to each other by means of respective ducts (9 and 11) that allow the passage of oil between them, a solenoid valve (10) being incorporated between said ducts (9 and 11), which controls the passage of oil circulation between the two chambers (4 and 5).

Con esa realización el cilindro hidráulico (3) se dispone en el montaje de aplicación con la electroválvula (10) conectada eléctricamente con el accionamiento de giro del eje (1) del seguidor solar en el que se establece el montaje, de forma que cuando el accionamiento de giro del eje (1) se activa mediante una alimentación eléctrica, la electroválvula (10) recibe también alimentación eléctrica y se activa, con lo cual dicha electroválvula (10) abre el paso de circulación de aceite entre las cámaras (4 y 5) del cilindro hidráulico (3), de modo que dicho cilindro hidráulico (3) funciona acompañando el movimiento de giro del eje (1) del seguidor solar, mientras que cuando se desactiva el accionamiento de giro del eje (1) mediante la in terrupción de su a lim entación eléctrica, la e lectrová lvu la (10) deja de recib ir a lim entación e léctrica y se desactiva, cerrando el paso de c ircu lac ión de aceite entre las cám aras (4 y 5) del cilindro h idráu lico (3), el cual se com porta entonces com o b loqueador entre el e je (1) del segu ido r solar, m anteniendo los paneles de los m ódulos fo tovo lta icos en posición to ta lm ente está tica frente a la acción del v iento u otras fuerzas que puedan inc id ir cuando el segu ido r so la r está parado. D icho funcionam iento se m uestra en la figura 5 en la que se representa m ediante un d iagram a de flu jo del proceso de actuación del cilindro h idráu lico (3) en el que prim eram ente se com prueba si está activado, en cuyo caso se desactiva y se m ueve el acc ionam ien to de g iro del eje (1). En el s igu iente paso se com prueba si se ha a lcanzado el ángu lo del panel so la r requerido. En caso de ser correcta la angulación, se detiene el segu ido r y se activa el b loqueo del cilindro h idráu lico (3). En una últim a verificac ión se com prueba si se va a rea lizar un nuevo accionam ien to del e je (1), en caso negativo queda activado el b loqueo y en caso positivo se vo lvería al in icio del proceso.With this embodiment, the hydraulic cylinder (3) is arranged in the application assembly with the solenoid valve (10) electrically connected to the rotation drive of the axis (1) of the solar tracker in which the assembly is established, so that when the The turning drive of the shaft (1) is activated by an electrical supply, the solenoid valve (10) also receives electrical power and is activated, with which said solenoid valve (10) opens the oil circulation passage between the chambers (4 and 5). ) of the hydraulic cylinder (3), so that said hydraulic cylinder (3) works accompanying the turning movement of the shaft (1) of the solar tracker, while when the turning drive of the shaft (1) is deactivated by means of the interruption of its electrical supply, the solenoid valve (10) stops receiving electrical supply and is deactivated, closing the passage of oil circulation between the chambers (4 and 5) of the hydraulic cylinder (3), which then behaves as a blocker between the shaft (1) of the solar tracker, keeping the panels of the photovo ltaic modules in a completely static position against the action of the wind or other forces that may affect when the solar tracker is stopped. Said operation is shown in figure 5 in which it is represented by means of a flow diagram of the actuation process of the hydraulic cylinder (3) in which it is first checked if it is activated, in which case the axis rotary drive (1) is deactivated and moved. In the next step, it is checked whether the required solar panel angle has been reached. If the angle is correct, the follow-up stops and the hydraulic cylinder lock (3) is activated. In a last verification, it is checked if a new drive of the axis (1) is going to be carried out, if not, the lock is activated and if positive, it would return to the start of the process.

Para ello, el m ontaje del c ilindro h idráu lico (3) en el segu ido r so la r de ap licación se estab lece su je tando el cuerpo del cilindro h idráu lico (3) sobre el poste (2) de sustentación de los m ódulos fo tovo lta icos, y el vástago (7) queda sujeto por su extrem o acop lándose a una palanca, barra o e lem ento sim ilar, que a su vez está unida al eje (1) de giro, quedando libre de su jeción el otro vástago (8), de m odo que en el funcionam iento del c ilindro h idráu lico (3), al desplazarse el pistón (6), el caudal de aceite que se desalo ja de una de las cám aras (4 o 5) se corresponde exactam ente con el vo lum en que aum enta en la otra, lo cual perm ite con tro la r la circu lación del flu jo de aceite entre las dos cám aras (4 y 5) m ediante una única e lectrová lvu la (10) d ispuesta en el conducto (9) de circulación. To do this, the mounting of the hydraulic cylinder (3) on the application solar tracker is established by holding the body of the hydraulic cylinder (3) on the support post (2). of the photovoltaic modules, and the stem (7) is held at its end by coupling to a lever, bar or similar element, which in turn is attached to the axis (1) of rotation, remaining free fastening the other rod (8), so that in the operation of the hydraulic cylinder (3), when the piston (6) moves, the flow of oil that is dislodged from one of the chambers (4 or 5) corresponds exactly to the volume that increases in the other, which allows to control the circulation of the oil flow between the two chambers (4 and 5) by means of a single solenoid valve (10) arranged in the circulation duct (9).

Claims (3)

REIVINDICACIONES 1. - Dispositivo de bloqueo para un seguidor solar, comprendiendo al menos un cilindro hidráulico (3) destinado para disponerse en el seguidor solar provisto con módulos fotovoltaicos que se incorporan sobre un eje (1) provisto de un accionamiento de giro para orientar los módulos fotovoltaicos hacia el sol respecto a un poste (2) de sustentación de los módulos fotovoltaicos, caracterizado porque el cilindro hidráulico (3) posee dos cámaras (4 y 5) independientes destinadas para contener aceite, entre las cuales va dispuesto un pistón (6) al que están unidos sendos vástagos (7 y 8), los cuales se extienden respectivamente por las cámaras (4 y 5), saliendo cada uno de ellos por un extremo del cilindro hidráulico (3), mientras que las cámaras (4 y 5) se encuentran comunicadas entre sí por medio respectivos conductos (9 y 11) entre los que se incorpora una electroválvula (10) que controla el paso de circulación de aceite entre las mencionadas cámaras (4) y (5) cuando se desplaza el pistón (6), donde el dispositivo está configurado para ser dispuesto en el seguidor solar de manera que el extremo de un vástago (7) esté conectado al eje (1) de giro y el extremo del otro vástago (8) sea desplazable libremente, estando el cilindro hidráulico (3) fijado al poste (2).1. - Blocking device for a solar tracker, comprising at least one hydraulic cylinder (3) intended to be arranged in the solar tracker provided with photovoltaic modules that are incorporated on an axis (1) provided with a rotation drive to orient the modules photovoltaic modules towards the sun with respect to a support pole (2) for the photovoltaic modules, characterized in that the hydraulic cylinder (3) has two independent chambers (4 and 5) intended to contain oil, between which a piston (6) is arranged to which two rods (7 and 8) are attached, which extend respectively through the chambers (4 and 5), each of them coming out of one end of the hydraulic cylinder (3), while the chambers (4 and 5) They are connected to each other by means of respective ducts (9 and 11) between which a solenoid valve (10) is incorporated that controls the passage of oil circulation between the aforementioned chambers (4) and (5) when the piston moves (6), where the device is configured to be arranged in the solar tracker so that the end of a stem (7) is connected to the axis (1) of rotation and the end of the other stem (8) is freely movable, being the hydraulic cylinder (3) fixed to the post (2). 2. - Dispositivo de bloqueo para seguidor solar, de acuerdo con la primera reivindicación, caracterizado porque la electroválvula (10) va conectada eléctricamente con el accionamiento de giro del eje (1) del seguidor solar, activándose y desactivándose a la vez que dicho accionamiento de giro.2. - Blocking device for solar tracker, according to the first claim, characterized in that the solenoid valve (10) is electrically connected to the rotation drive of the shaft (1) of the solar tracker, activating and deactivating at the same time as said drive rotation. 3. - Dispositivo de bloqueo para un seguidor solar, de acuerdo con la primera reivindicación, caracterizado porque los dos vástagos (7 y 8) del cilindro hidráulico (3) son de igual diámetro. 3. - Blocking device for a solar tracker, according to the first claim, characterized in that the two rods (7 and 8) of the hydraulic cylinder (3) are of equal diameter.
ES202132487U 2021-12-17 2021-12-17 LOCKING DEVICE FOR SOLAR TRACKER Active ES1285444Y (en)

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PCT/ES2022/070786 WO2023111371A1 (en) 2021-12-17 2022-12-12 Locking device for a solar tracker

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114884442A (en) * 2022-05-05 2022-08-09 中广核新能源安徽有限公司 Inclination angle adjusting support suitable for various gradients

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20100296A1 (en) * 2010-10-07 2012-04-08 Lamo Srl LOCKING SYSTEM FOR PANELS MOUNTED ON TRACKERS
WO2016179302A1 (en) * 2015-05-04 2016-11-10 Sunpower Corporation Solar tracking apparatus
ES2854474B2 (en) * 2020-03-20 2022-06-21 Esasolar Energy System S L SOLAR TRACKER WITH LOCKING SYSTEM
CN113037200B (en) * 2021-03-26 2022-08-12 西安理工大学 Hydraulic locking wind-resistant control system for double one-way electromagnetic valves of single-shaft photovoltaic tracker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114884442A (en) * 2022-05-05 2022-08-09 中广核新能源安徽有限公司 Inclination angle adjusting support suitable for various gradients

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