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WO2021019115A1 - Safety brake device for photovoltaic installations - Google Patents

Safety brake device for photovoltaic installations Download PDF

Info

Publication number
WO2021019115A1
WO2021019115A1 PCT/ES2020/070473 ES2020070473W WO2021019115A1 WO 2021019115 A1 WO2021019115 A1 WO 2021019115A1 ES 2020070473 W ES2020070473 W ES 2020070473W WO 2021019115 A1 WO2021019115 A1 WO 2021019115A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake device
panel
chain
safety brake
movement
Prior art date
Application number
PCT/ES2020/070473
Other languages
Spanish (es)
French (fr)
Inventor
Juan José CASTELLANO DÍAZ
Original Assignee
Brown Advance, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ES201931320U external-priority patent/ES1236214Y/en
Priority claimed from ES201931798U external-priority patent/ES1241464Y/en
Application filed by Brown Advance, S.A. filed Critical Brown Advance, S.A.
Publication of WO2021019115A1 publication Critical patent/WO2021019115A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/50—Arrangement of stationary mountings or supports for solar heat collector modules comprising elongate non-rigid elements, e.g. straps, wires or ropes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/80—Accommodating differential expansion of solar collector elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar 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
    • Y02E10/40—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

Definitions

  • the invention refers to a safety brake device for photovoltaic installations that provides, for the function for which it is intended, advantages and characteristics, which are described in detail below.
  • the object of the present invention lies, specifically, in a device that, applicable for its incorporation in installations of mobile solar panels, in particular those that are oriented automatically by means of a solar tracker, is configured as a security system to prevent the rotation of the solar tracker when its movement is accelerated more than expected by the action of the wind, thus preventing the solar tracker from entering into resonance due to the wind at the ends of the panel, limiting the effectiveness of the system.
  • the field of application of the present invention is framed within the sector of the industry dedicated to the manufacture of apparatuses and accessory devices for photovoltaic installations.
  • the solution described in the utility model U201830695 whose owner is the applicant of the present invention, can be used, consisting of a security bolt based on blocking pieces of the horizontal bar that transmits the movement rotating to the plates.
  • a security bolt based on blocking pieces of the horizontal bar that transmits the movement rotating to the plates.
  • a system of dampers attached between the pole and the ends of the solar panel is also known.
  • the shock absorbers do not withstand the high forces of the wind and, in addition, they only have a certain route.
  • the aim of the present invention is, therefore, to provide an alternative solution to the described problem of turning the external plates and without the drawbacks of the currently known solutions.
  • the safety brake device for photovoltaic installations that the invention proposes is configured as the ideal solution to the aforementioned objective, the characterizing details that make it possible and distinguish it conveniently included in the final claims that accompany this description.
  • what the invention proposes is an applicable device for incorporation in mobile solar panel installations, preferably those that are automatically oriented by means of a solar tracker, which constitutes a security system to prevent inappropriate rotation. of the external photovoltaic panels of a panel at a speed higher than that programmed to prevent vibrations or unwanted resonances caused in them by the action of the wind.
  • the safety system is activated by the electronic control of the tracker when due to high wind speeds, the tracker is brought to its 0 Q or safety position. At that moment the brake is activated to limit the movement of the panels due to the effect of the wind. Once the wind speed has dropped below the limits set by the follower manufacturer, the brake is deactivated to allow free movement of the follower.
  • the device of the invention which is designed to be incorporated into the end panels of photovoltaic installations, is essentially configured from at least one cable or a chain fixed at one or both ends. , to a plate at the ends of the panel and linked to a movement mechanism provided with at least one axis of rotation controlled by a locking system, which allows the controlled movement of said cable or chain as well as its locking in a concrete position.
  • the device comprises a system of cables or tapes that start from a controlled winding mechanism, which is preferably fixed on the pillar or support post of said panels, towards each one of the ends of the final panel of the installation.
  • the winding mechanism has a shaft that allows the controlled movement of the cables or tapes so that it remains below a certain speed, the programmed speed that rotates the panels to correctly orient themselves to the sun, but prevents sudden movements, above said speed. programmed speed, caused by gusts of wind, blocking their movement as do the seat belts of motor vehicles.
  • the device comprises a single controlled winding mechanism with a single axis to which two cables or ribbons are wound in the opposite direction that go to the respective opposite ends of the panel.
  • the mechanism incorporates two rotation locking elements (one for each side) that they prevent the shaft from rotating at a sudden speed.
  • the device comprises two independent controlled winding mechanisms, each with an independent axis, for each of the two cables or tapes.
  • the safety brake device is fixed to the panel post by tightening, preferably by screwing in a flange available for this purpose, without having to make holes to weaken the post.
  • the installation process is simple.
  • the ends of the cables or ribbons are attached to the plates at the respective opposite ends of the panel and the winding mechanism is attached to the center post at the appropriate height so that the cables or ribbons are in tension.
  • the device comprises a chain, the ends of which are fixed at the ends of the panel, and, as a movement mechanism, a central pinion, located on the post of the panel structure, through which the chain passes and which is linked to a locking system located on its axis and provided with Two motors driven through the electronic control of the tracker.
  • the brake blocks the movement of the pinion mechanism, limiting the movement of the chain. and therefore avoiding the turn of the follower.
  • the brake is released and this allows the free rotation of the sprocket and therefore allows the movement of the chain which, in turn, allows the rotation follower.
  • the security system will be programmed to deactivate the brake and allow the panels to rotate to correctly orient themselves to the sun when the wind speed is below the established limit, and to activate the brake when the wind speed exceeds the established limit thus preventing sudden movements of the panels caused by strong gusts of wind.
  • the pinion locking system is a double ratchet with two gears oriented in opposite directions and two pawls that, placed in a symmetrical position to engage the teeth of each of said gears, are associated with respective motors that move them through a rod that pushes each of the triggers to place them or not in the locked position, so that one allows or blocks the movement of the pinion and, therefore, of the chain, in one direction and the another does it in the opposite direction.
  • Another advantage of the device is that this configuration allows the same device to be adjusted to different photovoltaic installations, even when they have different widths of the solar panels.
  • Figures number 1 and 2. They show respective views, in perspective and in side elevation respectively, of an example of a photovoltaic panel in which an example of the device object of the invention has been incorporated in its variant of embodiment by cable, appreciating the disposition of the same and its main parts;
  • Figure number 3. Shows a front elevation view of an example of the variant device object of the invention by means of cable shown in figures 1 and 2, in this case in its option with a single winding mechanism for the two tapes that It comprises, which has been represented in its position of use coupled to the pillar of the panel;
  • Figure number 4 shows a perspective view of the example of the device of the invention shown in figure 3, in this case represented without coupling to the pillar of the panel;
  • Figures number 5 and 6. They show respective views, in side elevation and perspective respectively, of another example of the variant of the device of the invention by means of cable, in this case in its option of double winding mechanism for each of the two tapes comprising;
  • Figure number 7. Shows a schematic side elevation view of an example of a
  • the device (1) in question is applicable to be incorporated into a panel structure (2) of a photovoltaic installation of the type made up of a set of solar panels (3) supported on a pole.
  • (4) of support has solar tracking movement printed to said solar panels (3) by a motor (not shown), preferably a solar tracker with electronic control, through a turning bar (50), and comprises at least one filiform element, in the form of a cable (6) or ribbon or chain (5) fixed, at least, by one end to one end of the plate (3) of the ends of the panel (2) and linked to a mechanism (7) for moving said cable (6) or chain (5), said mechanism (7) being provided with, at the less, an axis (8) of controlled rotation with a locking system, which allows the controlled movement of the cable (6) or the chain (5) and the blocking of said cable (6) or chain (5) in a specific position .
  • a first variant of the device (1) comprising two cables (6) or tapes that, at one end, are linked to at least one controlled winding mechanism (7) located in a midpoint of the panel (2), preferably fixed to the support post (4) of the same, and that at the opposite end are attached to the respective opposite ends of the plates (3) of the ends of the panel (2), said mechanism (7) being provided with, at least, one axis (8) of controlled rotation with locking system, which allows the controlled movement of the cables (6) or tapes so that they are wound and unwound thereto when it is it produces below a certain speed, specifically the one programmed for solar tracking, but which is blocked when the movement is above said speed or occurs abruptly.
  • Figures 3 and 4 show how, in an embodiment of this first variant, the device (1) comprises a single controlled winding mechanism (7) with a single controlled rotation axis (8) with a locking system to the that are wound, in the opposite direction, the two cables (6) or tapes that go to the respective opposite ends of the panel (2), in which, before the movement of the plates (3) moved by the bar (5 ) to carry out the solar tracking movement, while one of the two cables (6) or tapes is wound, the other cable (6) or tape is unwound.
  • the shaft (8) of the mechanism (7) incorporates two rotation blocking elements, one for each direction of rotation, which prevent the shaft (8) from rotating at a sudden speed.
  • the device (1) comprises two independent controlled winding mechanisms (7), each one with a rotation axis (8) controlled with independent locking system, for each of the two cables (6) or tapes.
  • the mechanism or mechanisms (7) of the device (1) is fixed to the post (4) of the panel (2) by tightening, preferably, by screwing a flange (9) with which it has for this purpose.
  • said block system (8) of the pinion (7) is made up of a double ratchet system with two gears (80), integrally joined to the pinion (7) and oriented in opposite directions, and two triggers (81) that, placed in a symmetrical position to fit the teeth of each of said gears (80), are associated with respective motors (90) that move them through a rod (82) with linear displacement that pushes them to place them or not in the locked position on the gears (80), in such a way that one allows or blocks the movement of the pinion (7), and, therefore, of the chain ( 5), in one sense and the other does it in the opposite sense.
  • the pinion (7) and the locking system (8) with the motors (90) are integrated in a casing (10) which, as already indicated, is preferably fixed at a point on the post (4 ) central support structure of the solar panel (2).
  • the device (1) includes the existence of an additional sprocket (1 1) that acts as a guide and tensioner for the chain (5), which is incorporated in a support (12) provided for this purpose. and that is formed from an arm (121) that, at a first end, is fixed to the base (101) of the casing (10) in which the pinion (7) and the locking system (8) are integrated, and at the opposite end, where it is wider, it has a shaft (122) on which said additional toothed wheel (1 1) rotates.
  • an additional sprocket (1 1) that acts as a guide and tensioner for the chain (5), which is incorporated in a support (12) provided for this purpose. and that is formed from an arm (121) that, at a first end, is fixed to the base (101) of the casing (10) in which the pinion (7) and the locking system (8) are integrated, and at the opposite end, where it is wider, it has a shaft (122) on which said additional toothed wheel (1 1) rotates.
  • said casing (10) comprises a base (101) consisting of a plate or disk with lateral extensions (102) so that it can be fixed by screwing around the post (4), a Equally flat lid (103) which, in turn, is screwed with spacers (104) at a certain distance from the base (101) to accommodate the pinion (7), leaving open side spaces for the passage of the chain (5) , and a cover (105) that covers the locking system (8) and the motors (90), which, as can be seen in figure 8 and figure 10, are located externally to said cover (103 ).

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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)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

A safety brake device for photovoltaic installations, particularly applicable to be incorporated in an array of panels (2) of the type formed by solar panels (3) which, held by a supporting post (4), are able to move by means of an electronically-controlled solar tracker or otherwise, and comprising at least one cable (6), belt or chain (5) attached, at least by one extremity, to one extremity of the panel (3) at the extremities of the array (2) and linked to a mechanism (7) for moving the cable (6) or chain (5); where said mechanism (7) is equipped with at least one shaft (8) for controlled rotation with a locking system, which enables the controlled movement of the cable (6) or chain (5) and the locking of said cable (6) or chain (5) in a particular position.

Description

DISPOSITIVO DE FRENO DE SEGURIDAD PARA INSTALACIONES SAFETY BRAKING DEVICE FOR INSTALLATIONS
FOTOVOLTAICAS PHOTOVOLTAIC
MEMORIA DESCRIPTIVA DESCRIPTIVE MEMORY
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La invención, tal como expresa el enunciado de la presente memoria descriptiva, se refiere a un dispositivo de freno de seguridad para instalaciones fotovoltaicas que aporta, a la función a que se destina, ventajas y características, que se describen en detalle más adelante. The invention, as expressed in the wording of the present specification, refers to a safety brake device for photovoltaic installations that provides, for the function for which it is intended, advantages and characteristics, which are described in detail below.
El objeto de la presente invención recae, concretamente, en un dispositivo que, aplicable para su incorporación en instalaciones de paneles solares móviles, en particular aquellos que se orientan automáticamente mediante seguidor solar, se configura como sistema de seguridad para impedir el giro del seguidor solar cuando su movimiento es acelerado más de lo esperado por la acción del viento, impidiendo así que el seguidor solar entre en resonancia por consecuencia del viento en los extremos del panel, limitando la efectividad del sistema. The object of the present invention lies, specifically, in a device that, applicable for its incorporation in installations of mobile solar panels, in particular those that are oriented automatically by means of a solar tracker, is configured as a security system to prevent the rotation of the solar tracker when its movement is accelerated more than expected by the action of the wind, thus preventing the solar tracker from entering into resonance due to the wind at the ends of the panel, limiting the effectiveness of the system.
CAMPO DE APLICACIÓN DE LA INVENCIÓN FIELD OF APPLICATION OF THE INVENTION
El campo de aplicación de la presente invención se enmarca dentro del sector de la industria dedicada a la fabricación de aparatos y dispositivos accesorios para instalaciones fotovoltaicas. The field of application of the present invention is framed within the sector of the industry dedicated to the manufacture of apparatuses and accessory devices for photovoltaic installations.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
Como es sabido, muchas de las instalaciones fotovoltaicas que conforman campos o granjas solares de extensión considerable, los paneles solares suelen estar incorporados a estructuras motorizadas que proporcionan el movimiento conjunto de dichos paneles por grupos para dotarlos de seguimiento solar, es decir, hacer que se vayan inclinando en función de la posición del sol con objeto de ofrecer una posición óptima de captación, lo más perpendicular posible a la incidencia de los rayos del sol. As is known, many of the photovoltaic installations that make up solar fields or farms of considerable extension, solar panels are usually incorporated into motorized structures that provide the joint movement of said panels in groups to provide them with solar tracking, that is, make them tilt depending on the position of the sun with In order to offer an optimal capture position, as perpendicular as possible to the incidence of the sun's rays.
Uno de los problemas de este tipo de instalaciones es que el viento, en ciertas circunstancias, provoca que las placas de los extremos, que son las que están más alejadas del motor que hace girar el eje al que van unidas todas las placas, entren en resonancia y se muevan (giren) a velocidades superiores que pueden provocar su rotura. Sería deseable, pues, poder bloquear dicho giro para evitar que tales placas entren en resonancia (que cada vez giren a mayor velocidad) y se rompan. One of the problems with this type of installation is that the wind, in certain circumstances, causes the end plates, which are the ones that are furthest from the motor that rotates the shaft to which all the plates are attached, to enter into resonance and move (rotate) at higher speeds that can cause them to break. It would be desirable, therefore, to be able to block said rotation to prevent such plates from entering into resonance (each time rotating at higher speed) and breaking.
Para evitar dicho giro se puede utilizar la solución que se describe en el modelo de utilidad U201830695, cuyo titular es el propio solicitante de la presente invención, consistente en un cerrojo de seguridad basado en unas piezas de bloqueo de la barra horizontal que transmite el movimiento giratorio a las placas. Sin embargo, aunque es una buena solución, es de difícil implementación al tener que coincidir perfectamente dos piezas, ya que, con el tiempo las partes de mueven ligeramente y las piezas no encajan. To avoid said twist, the solution described in the utility model U201830695, whose owner is the applicant of the present invention, can be used, consisting of a security bolt based on blocking pieces of the horizontal bar that transmits the movement rotating to the plates. However, although it is a good solution, it is difficult to implement as two pieces have to coincide perfectly, since, over time, the parts move slightly and the pieces do not fit together.
También se conoce un sistema de amortiguadores unidos entre el poste y los extremos de la placa solar. Sin embargo los amortiguadores no resisten las altas fuerzas del viento y, además, solo tienen un recorrido determinado. El objetivo de la presente invención es, pues, proporcionar una solución alternativa, a la problemática descrita del giro de las placas externas y sin los inconvenientes de las soluciones actualmente conocidas. A system of dampers attached between the pole and the ends of the solar panel is also known. However, the shock absorbers do not withstand the high forces of the wind and, in addition, they only have a certain route. The aim of the present invention is, therefore, to provide an alternative solution to the described problem of turning the external plates and without the drawbacks of the currently known solutions.
Por otra parte, y como referencia al estado actual de la técnica cabe señalar que, al menos por parte del solicitante, se desconoce la existencia de ningún otro dispositivo de freno de seguridad para instalaciones fotovoltaicas, ni ninguna otra invención de aplicación similar, que presente unas características técnicas, estructurales y constitutivas iguales o semejantes a las que presenta el que aquí se reivindica. On the other hand, and as a reference to the current state of the art, it should be noted that, at least by the applicant, the existence of any other safety brake device for photovoltaic installations, or any other invention of similar application, that presents technical, structural and constitutive characteristics equal or similar to those presented by the one claimed herein.
EXPLICACIÓN DE LA INVENCIÓN EXPLANATION OF THE INVENTION
El dispositivo de freno de seguridad para instalaciones fotovoltaicas que la invención propone se configura como la solución idónea al objetivo anteriormente señalado, estando los detalles caracterizadores que lo hacen posible y lo distinguen convenientemente recogidos en las reivindicaciones finales que acompañan la presente descripción. The safety brake device for photovoltaic installations that the invention proposes is configured as the ideal solution to the aforementioned objective, the characterizing details that make it possible and distinguish it conveniently included in the final claims that accompany this description.
Más concretamente, lo que la invención propone, como se ha apuntado anteriormente, es un dispositivo aplicable para su incorporación en instalaciones de paneles solares móviles, preferentemente aquellos que se orientan automáticamente mediante seguidor solar, que constituye un sistema de seguridad para impedir el giro inapropiado de las placas fotovoltaicas externas de un panel a una velocidad superior a la programada para impedir vibraciones o resonancias indeseadas provocadas en ellas por la acción del viento. Preferentemente, el sistema de seguridad es accionado por el control electrónico del seguidor cuando debido a altas velocidades de viento, el seguidor es llevado a su posición de 0Q ó seguridad. En ese momento se activa el freno para limitar el movimiento de los paneles por efecto del viento. Una vez la velocidad del viento ha bajado de los límites establecidos por el fabricante del seguidor, el freno es desactivado para permitir el libre movimiento del seguidor.More specifically, what the invention proposes, as noted above, is an applicable device for incorporation in mobile solar panel installations, preferably those that are automatically oriented by means of a solar tracker, which constitutes a security system to prevent inappropriate rotation. of the external photovoltaic panels of a panel at a speed higher than that programmed to prevent vibrations or unwanted resonances caused in them by the action of the wind. Preferably, the safety system is activated by the electronic control of the tracker when due to high wind speeds, the tracker is brought to its 0 Q or safety position. At that moment the brake is activated to limit the movement of the panels due to the effect of the wind. Once the wind speed has dropped below the limits set by the follower manufacturer, the brake is deactivated to allow free movement of the follower.
Para ello, el dispositivo de la invención, que está ideado para ir incorporado en los paneles extremos de las instalaciones fotovoltaicas, se configura, esencialmente, a partir de, al menos, un cable o una cadena fijado/a, por uno o ambos extremos, a una placa de los extremos del panel y vinculado/a a un mecanismo de movimiento provisto de, al menos, un eje de giro controlado mediante sistema de bloqueo, el cual permite el movimiento controlado de dicho cable o cadena así como su bloqueo en una posición concreta. To do this, the device of the invention, which is designed to be incorporated into the end panels of photovoltaic installations, is essentially configured from at least one cable or a chain fixed at one or both ends. , to a plate at the ends of the panel and linked to a movement mechanism provided with at least one axis of rotation controlled by a locking system, which allows the controlled movement of said cable or chain as well as its locking in a concrete position.
A partir de ello, en una primera variante de realización mediante cable, el dispositivo comprende un sistema de cables o cintas que parten de un mecanismo de enrollado controlado, que preferentemente está fijado en el pilar o poste de sustentación de dichos paneles, hacia cada uno de los extremos del panel final de la instalación. El mecanismo de enrollado cuenta con un eje que permite el movimiento controlado de los cables o cintas para que quede por debajo de una cierta velocidad, la programada que hace girar los paneles para orientarse correctamente al sol, pero impide movimientos bruscos, por encima de dicha velocidad programada, provocados por rachas de viento, bloqueando su movimiento tal como lo hacen los cinturones de seguridad de los vehículos automóviles. From this, in a first variant of embodiment by cable, the device comprises a system of cables or tapes that start from a controlled winding mechanism, which is preferably fixed on the pillar or support post of said panels, towards each one of the ends of the final panel of the installation. The winding mechanism has a shaft that allows the controlled movement of the cables or tapes so that it remains below a certain speed, the programmed speed that rotates the panels to correctly orient themselves to the sun, but prevents sudden movements, above said speed. programmed speed, caused by gusts of wind, blocking their movement as do the seat belts of motor vehicles.
En una opción de realización de dicha variante, el dispositivo comprende un único mecanismo de enrollado controlado con un único eje al que se enrollan en dirección contraria dos cables o cintas que van a parar a los respectivos extremos opuestos del panel. Cuando el panel gira una de las dos cintas se enrolla y la otra se desenrolla. En este caso el mecanismo incorpora dos elementos de bloqueo del giro (uno para cada lado) que impiden el giro del eje a una velocidad brusca. In an option of embodiment of said variant, the device comprises a single controlled winding mechanism with a single axis to which two cables or ribbons are wound in the opposite direction that go to the respective opposite ends of the panel. When the panel rotates, one of the two tapes is wound and the other is unwound. In this case, the mechanism incorporates two rotation locking elements (one for each side) that they prevent the shaft from rotating at a sudden speed.
Y, en otra opción de realización de la antedicha variante, el dispositivo comprende dos mecanismos de enrollado controlado independientes, cada uno con un eje independiente, para cada uno de los dos cables o cintas. And, in another embodiment of the aforementioned variant, the device comprises two independent controlled winding mechanisms, each with an independent axis, for each of the two cables or tapes.
En ambos casos, el dispositivo de freno de seguridad se fija al poste del panel por apriete, preferentemente, mediante atornillado de una brida con la que cuenta para tal fin, sin tener que hacer agujeros que debiliten el poste. In both cases, the safety brake device is fixed to the panel post by tightening, preferably by screwing in a flange available for this purpose, without having to make holes to weaken the post.
El proceso de instalación es sencillo. Se unen los extremos de los cables o cintas a las placas de los respectivos extremos opuestos del panel y se fija el mecanismo de enrollado al poste central a la altura adecuada para que los cables o cintas estén en tensión. The installation process is simple. The ends of the cables or ribbons are attached to the plates at the respective opposite ends of the panel and the winding mechanism is attached to the center post at the appropriate height so that the cables or ribbons are in tension.
Por otra parte, en una segunda variante de realización de la invención mediante cadena, en que igualmente está ideado para ir incorporado en los paneles extremos de las instalaciones fotovoltaicas donde la incidencia del viento suele ser mayor, el dispositivo comprende una cadena, cuyos extremos se fijan en los extremos del panel, y, como mecanismo de movimiento, un piñón central, situado en el poste de la estructural del panel, por el que pasa la cadena y que está vinculado a un sistema de bloqueo situado en su eje y provisto con sendos motores accionados a través del control electrónico del seguidor. On the other hand, in a second variant of embodiment of the invention by means of a chain, in which it is also designed to be incorporated in the end panels of photovoltaic installations where the incidence of the wind is usually greater, the device comprises a chain, the ends of which are fixed at the ends of the panel, and, as a movement mechanism, a central pinion, located on the post of the panel structure, through which the chain passes and which is linked to a locking system located on its axis and provided with Two motors driven through the electronic control of the tracker.
De este modo, cuando el control electrónico del seguidor alimenta los motores que accionan el sistema de bloqueo, el freno bloquea el movimiento del mecanismo de piñón limitando el movimiento de la cadena y por lo tanto evitando el giro del seguidor. Y, cuando el control electrónico del seguidor alimenta los motores del sistema de bloqueo en sentido opuesto, se libera el freno y éste permite el libre giro del piñón y por lo tanto permite el desplazamiento de la cadena que, a su vez, permite el giro del seguidor. In this way, when the electronic control of the follower powers the motors that actuate the locking system, the brake blocks the movement of the pinion mechanism, limiting the movement of the chain. and therefore avoiding the turn of the follower. And, when the electronic control of the follower feeds the motors of the locking system in the opposite direction, the brake is released and this allows the free rotation of the sprocket and therefore allows the movement of the chain which, in turn, allows the rotation follower.
En una opción de realización preferida de dicha variante, el sistema de seguridad estará programado para que desactive el freno y permita girar los paneles para orientarse correctamente al sol cuando la velocidad del viento esté por debajo del límite establecido, y para que active el freno cuando la velocidad del viento supere el límite establecido impidiendo así movimientos bruscos de los paneles provocados por rachas de viento fuertes. In a preferred embodiment of said variant, the security system will be programmed to deactivate the brake and allow the panels to rotate to correctly orient themselves to the sun when the wind speed is below the established limit, and to activate the brake when the wind speed exceeds the established limit thus preventing sudden movements of the panels caused by strong gusts of wind.
Y en una opción de realización preferida, el sistema de bloqueo del piñón es un doble trinquete con dos engranajes orientados en sentidos opuestos y dos gatillos que, colocados en posición simétrica para encajar en los dientes de cada uno de dichos engranajes, están asociados a respectivos motores que los mueven a través de un vástago que empuja cada uno de los gatillos para situarlos o no en posición de trabado, de manera que uno permite o bloquea el desplazamiento del piñón y, por tanto, de la cadena, en un sentido y el otro lo hace en el sentido opuesto. And in a preferred embodiment option, the pinion locking system is a double ratchet with two gears oriented in opposite directions and two pawls that, placed in a symmetrical position to engage the teeth of each of said gears, are associated with respective motors that move them through a rod that pushes each of the triggers to place them or not in the locked position, so that one allows or blocks the movement of the pinion and, therefore, of the chain, in one direction and the another does it in the opposite direction.
Otra de las ventajas del dispositivo es que esta configuración permite ajustar el mismo dispositivo a diferentes instalaciones fotovoltaicas, aún cuando tengan diferentes anchos de las placas solares. Another advantage of the device is that this configuration allows the same device to be adjusted to different photovoltaic installations, even when they have different widths of the solar panels.
DESCRIPCIÓN DE LOS DIBUJOS 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, unos planos en 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, it is Accompanying this specification, as an integral part thereof, some drawings in which the following has been represented, for illustrative and non-limiting purposes:
Las figuras número 1 y 2.- Muestran sendas vistas, en perspectiva y en alzado lateral respectivamente, de un ejemplo de panel fotovoltaico en el que se ha incorporado un ejemplo del dispositivo objeto de la invención en su variante de realización mediante cable, apreciándose la disposición del mismo y sus partes principales; la figura número 3.- Muestra una vista en alzado frontal de un ejemplo de de la variante dispositivo objeto de la invención mediante cable mostrado en las figuras 1 y 2, en este caso en su opción con mecanismo de enrollado único para las dos cintas que comprende, el cual se ha representado en su posición de uso acoplado al pilar del panel; la figura número 4 Muestra una vista en perspectiva del ejemplo del dispositivo de la invención mostrado en la figura 3, en este caso representado sin acoplar al pilar del panel; las figuras número 5 y 6.- Muestran sendas vistas, en alzado lateral y perspectiva respectivamente, de otro ejemplo de la variante del dispositivo de la invención mediante cable, en este caso en su opción de doble mecanismo de enrollado para cada una de las dos cintas que comprende; la figura número 7.- Muestra una vista esquemática en alzado lateral de un ejemplo de panel fotovoltaico en el que se ha incorporado un ejemplo del dispositivo objeto de la invención, en este caso en su variante con cadena, apreciándose la disposición del mismo y sus partes principales; la figura número 8.- Muestra una vista en perspectiva de la zona del poste del panel en que se incorpora la carcasa con el piñón por el que pasa la cadena y el mecanismo de bloqueo del dispositivo de freno, según el ejemplo de la variante del mismo mostrado en la figura 7; y las figuras número 9 y 10.- Muestran sendas vistas ampliadas y en perspectiva del piñón por el que pasa la cadena y del mecanismo de bloqueo del ejemplo del dispositivo de freno mostrado en las figuras 7 y 8, estando representado en posición de bloqueo y de desbloqueo respectivamente. Figures number 1 and 2.- They show respective views, in perspective and in side elevation respectively, of an example of a photovoltaic panel in which an example of the device object of the invention has been incorporated in its variant of embodiment by cable, appreciating the disposition of the same and its main parts; Figure number 3.- Shows a front elevation view of an example of the variant device object of the invention by means of cable shown in figures 1 and 2, in this case in its option with a single winding mechanism for the two tapes that It comprises, which has been represented in its position of use coupled to the pillar of the panel; Figure number 4 shows a perspective view of the example of the device of the invention shown in figure 3, in this case represented without coupling to the pillar of the panel; Figures number 5 and 6.- They show respective views, in side elevation and perspective respectively, of another example of the variant of the device of the invention by means of cable, in this case in its option of double winding mechanism for each of the two tapes comprising; Figure number 7.- Shows a schematic side elevation view of an example of a photovoltaic panel in which an example of the device that is the object of the invention has been incorporated, in this case in its variant with a chain, appreciating its arrangement and its main parts; Figure number 8.- Shows a perspective view of the area of the panel post in which the casing is incorporated with the pinion through which the chain passes and the locking mechanism of the brake device, according to the example of the variant of the same shown in figure 7; and Figures 9 and 10.- They show respective enlarged and perspective views of the pinion through which the chain passes and of the locking mechanism of the example of the brake device shown in Figures 7 and 8, being represented in the locked position and of unlocking respectively.
REALIZACIÓN PREFERENTE DE LA INVENCIÓN PREFERRED EMBODIMENT OF THE INVENTION
A la vista de las mencionadas figuras, y de acuerdo con la numeración adoptada, se puede observar en ellas varios ejemplos de realización no limitativa del dispositivo de freno de seguridad para instalaciones fotovoltaicas preconizado, el cual comprende lo que se indica y describe en detalle a continuación. In view of the aforementioned figures, and in accordance with the numbering adopted, several examples of non-limiting embodiment of the recommended safety brake device for photovoltaic installations can be observed, which comprises what is indicated and described in detail below. continuation.
Así, tal como se observa en dichas figuras, el dispositivo (1 ) en cuestión es aplicable para ir incorporado en una estructura de paneles (2) de una instalación fotovoltaica del tipo conformado por un conjunto de placas solares (3) sostenidas sobre un poste (4) de sustentación, cuenta con movimiento de seguimiento solar imprimido a dichas placas solares (3) por un motor (no representado), preferentemente de un seguidor solar con control electrónico, a través de una barra (50) de giro, y comprende, al menos, un elemento filiforme, en forma de cable (6) o cinta o de cadena (5) fijado, al menos, por un extremo a un extremo de la placa (3) de los extremos del panel (2) y vinculado a un mecanismo (7) de movimiento de dicho cable (6) o cadena (5), estando dicho mecanismo (7) provisto de, al menos, un eje (8) de giro controlado con sistema de bloqueo, el cual permite el movimiento controlado del cable (6) o la cadena (5) y el bloqueo de dicho cable (6) o cadena (5) en una posición concreta. Atendiendo a las figuras 1 a 6, se observa una primera variante del dispositivo (1 ) que comprende dos cables (6) o cintas que, por un extremo se encuentran vinculados a, al menos, un mecanismo (7) de enrollado controlado situado en un punto medio del panel (2), preferentemente fijado al poste (4) de sustentación del mismo, y que por el extremo opuesto se encuentran sujetos a los respectivos extremos opuestos de las placas (3) de los extremos del panel (2), estando dicho mecanismo (7) provisto de, al menos, un eje (8) de giro controlado con sistema de bloqueo, el cual permite el movimiento controlado de los cables (6) o cintas para que se enrollen y desenrollen al mismo cuando este se produce por debajo de una cierta velocidad, en concreto la programada para el seguimiento solar, pero que se bloquea cuanto el movimiento está por encima de dicha velocidad o se produce de manera brusca. Thus, as seen in said figures, the device (1) in question is applicable to be incorporated into a panel structure (2) of a photovoltaic installation of the type made up of a set of solar panels (3) supported on a pole. (4) of support, has solar tracking movement printed to said solar panels (3) by a motor (not shown), preferably a solar tracker with electronic control, through a turning bar (50), and comprises at least one filiform element, in the form of a cable (6) or ribbon or chain (5) fixed, at least, by one end to one end of the plate (3) of the ends of the panel (2) and linked to a mechanism (7) for moving said cable (6) or chain (5), said mechanism (7) being provided with, at the less, an axis (8) of controlled rotation with a locking system, which allows the controlled movement of the cable (6) or the chain (5) and the blocking of said cable (6) or chain (5) in a specific position . Taking into account Figures 1 to 6, a first variant of the device (1) is observed, comprising two cables (6) or tapes that, at one end, are linked to at least one controlled winding mechanism (7) located in a midpoint of the panel (2), preferably fixed to the support post (4) of the same, and that at the opposite end are attached to the respective opposite ends of the plates (3) of the ends of the panel (2), said mechanism (7) being provided with, at least, one axis (8) of controlled rotation with locking system, which allows the controlled movement of the cables (6) or tapes so that they are wound and unwound thereto when it is it produces below a certain speed, specifically the one programmed for solar tracking, but which is blocked when the movement is above said speed or occurs abruptly.
En las figuras 3 y 4 se observa cómo, en una opción de realización de esta primera variante, el dispositivo (1 ) comprende un único mecanismo (7) de enrollado controlado con un único eje (8) de giro controlado con sistema de bloqueo al que se enrollan, en dirección contraria, los dos cables (6) o cintas que van a parar a los respectivos extremos opuestos del panel (2), en el cual, ante el movimiento de las placas (3) movidas por la barra (5) para efectuar el movimiento de seguimiento solar, mientras que uno de los dos cables (6) o cintas se enrolla el otro cable (6) o cinta se desenrolla. En este caso el eje (8) del mecanismo (7) incorpora dos elementos de bloqueo del giro, uno para cada sentido de giro, que impiden el giro del eje (8) a una velocidad brusca. Por su parte, en las figuras 5 y 6 se observa cómo, en otra opción de realización de la variante anterior, el dispositivo (1 ) comprende dos mecanismos (7) de enrollado controlado independientes, cada uno con un eje (8) de giro controlado con sistema de bloqueo independiente, para cada uno de los dos cables (6) o cintas. Figures 3 and 4 show how, in an embodiment of this first variant, the device (1) comprises a single controlled winding mechanism (7) with a single controlled rotation axis (8) with a locking system to the that are wound, in the opposite direction, the two cables (6) or tapes that go to the respective opposite ends of the panel (2), in which, before the movement of the plates (3) moved by the bar (5 ) to carry out the solar tracking movement, while one of the two cables (6) or tapes is wound, the other cable (6) or tape is unwound. In this case the shaft (8) of the mechanism (7) incorporates two rotation blocking elements, one for each direction of rotation, which prevent the shaft (8) from rotating at a sudden speed. On the other hand, in Figures 5 and 6 it is observed how, in another embodiment of the previous variant, the device (1) comprises two independent controlled winding mechanisms (7), each one with a rotation axis (8) controlled with independent locking system, for each of the two cables (6) or tapes.
En cualquier caso, el mecanismo o mecanismos (7) del dispositivo (1 ) se fija al poste (4) del panel (2) por apriete, preferentemente, mediante atornillado de una brida (9) con la que cuenta para tal fin. In any case, the mechanism or mechanisms (7) of the device (1) is fixed to the post (4) of the panel (2) by tightening, preferably, by screwing a flange (9) with which it has for this purpose.
Y, atendiendo a las figuras 7 a 10, se observa cómo, en una segunda variante de realización del dispositivo (1 ), aplicable cuando el movimiento de los paneles (2) se efectúa mediante seguidor solar con control electrónico, éste comprende una cadena (5) que, fijada por sus extremos en respectivos anclajes (60) situados en extremos opuestos del panel (2), pasa a través de un mecanismo de movimiento consistente en piñón (7) central, preferentemente situado en el poste (4) de la estructura del panel (2), que está vinculado por su eje a un sistema de bloqueo (8) con motores (90) accionados a través del control electrónico del seguidor, de tal modo que dicho sistema de bloqueo (8) impide o no el movimiento del piñón (7), y, por consiguiente, de la cadena (5) y con ello el giro del panel (2), en función del accionamiento de los motores (90) que efectúa el control electrónico del seguidor en base a lo que se haya programado. And, taking into account Figures 7 to 10, it is observed how, in a second variant of embodiment of the device (1), applicable when the movement of the panels (2) is carried out by means of a solar tracker with electronic control, it comprises a chain ( 5) which, fixed at its ends in respective anchors (60) located at opposite ends of the panel (2), passes through a movement mechanism consisting of a central pinion (7), preferably located on the post (4) of the The structure of the panel (2), which is linked by its axis to a locking system (8) with motors (90) driven through the electronic control of the tracker, in such a way that said locking system (8) prevents or does not movement of the pinion (7), and, consequently, of the chain (5) and with it the rotation of the panel (2), depending on the drive of the motors (90) that performs the electronic control of the tracker based on the that has been programmed.
Como se aprecia en las figuras 9 y 10, dicho sistema de bloque (8) del piñón (7) lo constituye un doble sistema de trinquete con dos engranajes (80), unidos solidariamente al piñón (7) y orientados en sentidos opuestos, y dos gatillos (81 ) que, colocados en posición simétrica para encajar en los dientes de cada uno de dichos engranajes (80), están asociados a unos respectivos motores (90) que los mueven a través de un vástago (82) de desplazamiento lineal que los empuja para situarlos o no en posición de trabado en los engranajes (80), de tal manera que uno permite o bloquea el desplazamiento del piñón (7), y, por tanto, de la cadena (5), en un sentido y el otro lo hace en el sentido opuesto. As can be seen in Figures 9 and 10, said block system (8) of the pinion (7) is made up of a double ratchet system with two gears (80), integrally joined to the pinion (7) and oriented in opposite directions, and two triggers (81) that, placed in a symmetrical position to fit the teeth of each of said gears (80), are associated with respective motors (90) that move them through a rod (82) with linear displacement that pushes them to place them or not in the locked position on the gears (80), in such a way that one allows or blocks the movement of the pinion (7), and, therefore, of the chain ( 5), in one sense and the other does it in the opposite sense.
En la realización preferida, el piñón (7) y el sistema de bloqueo (8) con los motores (90) están integrados en una carcasa (10) que, como ya se ha señalado, preferentemente está fijada en un punto del poste (4) central de soporte de la estructura del panel (2) solar. In the preferred embodiment, the pinion (7) and the locking system (8) with the motors (90) are integrated in a casing (10) which, as already indicated, is preferably fixed at a point on the post (4 ) central support structure of the solar panel (2).
Además, de modo preferido, el dispositivo (1 ) comprende la existencia de una rueda dentada adicional (1 1 ) que actúa de guía y tensor para la cadena (5), la cual se encuentra incorporada en un soporte (12) previsto al efecto y que está conformado a partir de un brazo (121 ) que, por un primer extremo se fija a la base (101 ) de la carcasa (10) en que se integran el piñón (7) y el sistema de bloqueo (8), y por el extremo opuesto, donde es más ancho, dispone de un eje (122) en que gira la citada rueda dentada adicional (1 1 ). Furthermore, preferably, the device (1) includes the existence of an additional sprocket (1 1) that acts as a guide and tensioner for the chain (5), which is incorporated in a support (12) provided for this purpose. and that is formed from an arm (121) that, at a first end, is fixed to the base (101) of the casing (10) in which the pinion (7) and the locking system (8) are integrated, and at the opposite end, where it is wider, it has a shaft (122) on which said additional toothed wheel (1 1) rotates.
Por último, cabe destacar que, en la realización preferida, dicha carcasa (10) comprende una base (101 ) consistente en una pletina o disco con prolongaciones laterales (102) para que se pueda fijar mediante atornillado alrededor del poste (4), una tapa (103) igualmente plana que, a su vez, se atornilla con unos separadores (104) a cierta distancia de la base (101 ) para dar cabida al piñón (7) dejando espacios laterales abiertos para el paso de la cadena (5), y una cubierta (105) que cubre el sistema de bloqueo (8) y los motores (90), los cuales, tal como se aprecia en la figura 8 y en la figura 10, se encuentran situados externamente a la mencionada tapa (103). 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. Finally, it should be noted that, in the preferred embodiment, said casing (10) comprises a base (101) consisting of a plate or disk with lateral extensions (102) so that it can be fixed by screwing around the post (4), a Equally flat lid (103) which, in turn, is screwed with spacers (104) at a certain distance from the base (101) to accommodate the pinion (7), leaving open side spaces for the passage of the chain (5) , and a cover (105) that covers the locking system (8) and the motors (90), which, as can be seen in figure 8 and figure 10, are located externally to said cover (103 ). Having sufficiently described 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 expert in the field understands its scope and the advantages that derive from it.

Claims

1 Dispositivo de freno de seguridad para instalaciones fotovoltaicas, en particular aplicable para ir incorporado en una estructura de paneles (2) del tipo conformado por placas solares (3) que, sostenidas sobre un poste (4) de sustentación, cuentan con movimiento, a través o no de un seguidor solar con control electrónico, está caracterizado por comprender, al menos, un cable (6) o cinta o una cadena (5) fijada, al menos, por un extremo a un extremo de la placa (3) de los extremos del panel (2) y vinculada a un mecanismo (7) de movimiento del cable (6) o la cadena (5); en que dicho mecanismo (7) está provisto de, al menos, un eje (8) de giro controlado con sistema de bloqueo, el cual permite el movimiento controlado del cable (6) o la cadena (5) y el bloqueo de dicho cable (6) o cadena (5) en una posición concreta. 1 Safety brake device for photovoltaic installations, particularly applicable to be incorporated into a panel structure (2) of the type made up of solar panels (3) that, supported on a support post (4), have movement, at through or not an electronically controlled solar tracker, it is characterized by comprising at least one cable (6) or tape or a chain (5) fixed, at least, at one end to one end of the plate (3) of the ends of the panel (2) and linked to a mechanism (7) for moving the cable (6) or the chain (5); in which said mechanism (7) is provided with at least one axis (8) of controlled rotation with a locking system, which allows the controlled movement of the cable (6) or the chain (5) and the blocking of said cable (6) or chain (5) in a specific position.
2.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según la reivindicación 1 , caracterizado por comprender, al menos, un cable (6) o cinta que, por un extremo se encuentra vinculado a, al menos, un mecanismo (7) de enrollado controlado situado en un punto medio del panel (2), y que por el extremo opuesto se encuentra sujeto a un extremo de la placa (3) de los extremos del panel (2); y donde dicho mecanismo (7) está provisto de, al menos, un eje (8) de giro controlado con sistema de bloqueo, el cual permite el movimiento controlado del cable (6) o cinta para que se enrolle y desenrolle al mismo cuando el movimiento se produce por debajo de una cierta velocidad, en concreto la programada para el seguimiento solar, pero que se bloquea cuanto el movimiento está por encima de dicha velocidad o se produce de manera brusca. 2.- Safety brake device for photovoltaic installations, according to claim 1, characterized in that it comprises at least one cable (6) or tape that, at one end, is linked to at least one mechanism (7) of controlled winding located at a midpoint of the panel (2), and which at the opposite end is attached to one end of the plate (3) of the ends of the panel (2); and where said mechanism (7) is provided with, at least, one axis (8) of controlled rotation with a locking system, which allows the controlled movement of the cable (6) or tape so that it is wound and unwound to it when the Movement occurs below a certain speed, specifically that programmed for solar tracking, but it is blocked when the movement is above said speed or occurs abruptly.
3.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según la reivindicación 2, caracterizado por comprender dos cables (6) o cintas enrollados a un único mecanismo (7) de enrollado controlado con un único eje (8) de giro controlado con sistema de bloqueo al que se enrollan, en dirección contraria, los dos cables (6) o cintas que van a parar a los respectivos extremos opuestos del panel (2), en el cual, ante el movimiento de las placas (3) para efectuar el movimiento de seguimiento solar, mientras que uno de los dos cables (6) o cintas se enrolla el otro cable (6) o cinta se desenrolla y el eje (8) del mecanismo (7) incorpora dos elementos de bloqueo del giro, uno para cada sentido de giro, que impiden el giro del eje (8) a una velocidad brusca. 3.- Safety brake device for photovoltaic installations, according to claim 2, characterized by comprising two cables (6) or tapes wound to a single controlled winding mechanism (7) with a single controlled rotation axis (8) with a locking system to which the two cables (6) or tapes that go to the respective opposite ends of the panel (2), in which, before the movement of the plates (3) to carry out the solar tracking movement, while one of the two cables (6) or tapes winds the other cable (6) or The tape is unwound and the shaft (8) of the mechanism (7) incorporates two rotation blocking elements, one for each direction of rotation, which prevent the shaft (8) from rotating at a sudden speed.
4 Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según la reivindicación 2, caracterizado por comprender comprender dos cables (6) o cintas enrollados a dos mecanismos (7) de enrollado controlado independientes, cada uno con un eje (8) de giro controlado con sistema de bloqueo independiente, para cada uno de los dos cables (6) o cintas. 4 Safety brake device for photovoltaic installations, according to claim 2, characterized in that it comprises two cables (6) or tapes wound to two independent controlled winding mechanisms (7), each with an axis (8) of controlled rotation with Independent locking system, for each of the two cables (6) or tapes.
5.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según cualquiera de las reivindicaciones 2 a 4, caracterizado porque el mecanismo o mecanismos (7) de enrollado controlado se fijan al poste (4) del panel (2). 5. Safety brake device for photovoltaic installations, according to any of claims 2 to 4, characterized in that the controlled winding mechanism or mechanisms (7) are fixed to the post (4) of the panel (2).
6.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según la reivindicación 5, caracterizado porque el mecanismo o mecanismos (7) de enrollado controlado se fijan al poste (4) del panel (2) por apriete mediante atornillado de una brida (9) con la que cuenta para tal fin. 6.- Safety brake device for photovoltaic installations, according to claim 5, characterized in that the controlled winding mechanism or mechanisms (7) are fixed to the post (4) of the panel (2) by tightening by screwing a flange (9 ) with which it has for this purpose.
7.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según la reivindicación 1 , caracterizado porque, cuando cuenta con movimiento a través de un seguidor solar con control electrónico, comprende una cadena (5) que, fijada por sus extremos en respectivos anclajes (60) situados en extremos opuestos del panel (2), pasa a través de un mecanismo de piñón (7) central vinculado a un sistema de bloqueo (8) con unos motores (90) accionados a través del control electrónico del seguidor, de tal modo que dicho sistema de bloqueo (8) impide o no el movimiento del piñón (7), y por tanto de la cadena (5) y con ello el giro del panel (2), en función del accionamiento de los motores (90) que efectúa el control electrónico del seguidor en base a lo que se haya programado. 7.- Safety brake device for photovoltaic installations, according to claim 1, characterized in that, when it has Movement through a solar tracker with electronic control, it comprises a chain (5) that, fixed by its ends in respective anchors (60) located at opposite ends of the panel (2), passes through a pinion mechanism (7) central unit linked to a locking system (8) with motors (90) driven through the electronic control of the tracker, in such a way that said locking system (8) prevents or not the movement of the pinion (7), and therefore of the chain (5) and with it the rotation of the panel (2), depending on the drive of the motors (90) that carries out the electronic control of the tracker based on what has been programmed.
8.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según la reivindicación 7, caracterizado porque el sistema de bloqueo (8) del piñón (7) lo constituye un doble sistema de trinquete con dos engranajes (80), unidos solidariamente al piñón (7) y orientados en sentidos opuestos, y dos gatillos (81 ) que, colocados en posición simétrica para encajar en los dientes de cada uno de dichos engranajes (80), están asociados a los respectivos motores (90) que los mueven para situarlos o no en posición de trabado en los engranajes (80), de tal manera que uno permite o bloquea el desplazamiento del piñón (7), y por consiguiente, de la cadena (5), en un sentido y el otro lo hace en el sentido opuesto. 8. Safety brake device for photovoltaic installations, according to claim 7, characterized in that the locking system (8) of the pinion (7) is constituted by a double ratchet system with two gears (80), integrally joined to the pinion ( 7) and oriented in opposite directions, and two triggers (81) that, placed in a symmetrical position to engage the teeth of each of said gears (80), are associated with the respective motors (90) that move them to position them or not in the locked position on the gears (80), in such a way that one allows or blocks the movement of the pinion (7), and consequently, of the chain (5), in one direction and the other in the direction opposite.
9.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según la reivindicación 8, caracterizado porque los gatillos (81 ) están asociados a los motores (90) a través de un vástago (82) de desplazamiento lineal que los empuja para situarlos o no en posición de trabado en los engranajes (80). 9.- Safety brake device for photovoltaic installations, according to claim 8, characterized in that the triggers (81) are associated with the motors (90) through a linear displacement rod (82) that pushes them to position them or not in the locked position on the gears (80).
10.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según cualquiera de las reivindicaciones 7 u 8, caracterizado porque el piñón (7) y el sistema de bloqueo (8) con los motores (90) están incorporados en el poste (4) central de soporte de la estructura del panel (2) solar. 10.- Safety brake device for photovoltaic installations, according to any of claims 7 or 8, characterized in that the pinion (7) and the locking system (8) with the motors (90) are incorporated in the central support post (4) of the solar panel (2) structure.
11.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según cualquiera de las reivindicaciones 7, 8 ó 10, caracterizado porque el piñón (7) y el mecanismo de bloqueo (8) con los motores (9) están integrados en una carcasa (10). 11.- Safety brake device for photovoltaic installations, according to any of claims 7, 8 or 10, characterized in that the pinion (7) and the locking mechanism (8) with the motors (9) are integrated in a housing ( 10).
12.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según cualquiera de las reivindicaciones 7 a 1 1 , caracterizado porque además comprende la existencia de una rueda dentada adicional (11 ) que actúa de guía y tensor para la cadena (5). 12. Safety brake device for photovoltaic installations, according to any of claims 7 to 1 1, characterized in that it also comprises the existence of an additional sprocket (11) that acts as a guide and tensioner for the chain (5).
13.- Dispositivo de freno de seguridad para instalaciones fotovoltaicas, según la reivindicación 12, caracterizado porque la rueda dentada adicional (1 1 ) que actúa de guía y tensor para la cadena (5) se encuentra incorporada en un soporte (12) previsto al efecto y que está conformado a partir de un brazo (121 ) que, por un primer extremo está fijado a la base (101 ) de la carcasa (10) en que se integran el piñón (7) y el sistema de bloqueo (8), y por el extremo opuesto, donde es más ancho, ya dispuesto un eje (122) en el que gira dicha rueda dentada adicional (1 1 ). 13.- Safety brake device for photovoltaic installations, according to claim 12, characterized in that the additional sprocket (1 1) that acts as a guide and tensioner for the chain (5) is incorporated in a support (12) provided to the effect and that is formed from an arm (121) that, at a first end is fixed to the base (101) of the casing (10) in which the pinion (7) and the locking system (8) are integrated , and at the opposite end, where it is wider, an axis (122) is already arranged on which said additional toothed wheel (1 1) rotates.
PCT/ES2020/070473 2019-07-31 2020-07-21 Safety brake device for photovoltaic installations WO2021019115A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ES201931320U ES1236214Y (en) 2019-07-31 2019-07-31 SAFETY BRAKE DEVICE FOR PHOTOVOLTAIC INSTALLATIONS
ESU201931320 2019-07-31
ES201931798U ES1241464Y (en) 2019-11-04 2019-11-04 SAFETY BRAKING DEVICE FOR PHOTOVOLTAIC INSTALLATIONS OF MOBILE PANELS BY SOLAR TRACKER
ESU201931798 2019-11-04

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WO2021019115A1 true WO2021019115A1 (en) 2021-02-04

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010016060A2 (en) * 2008-08-04 2010-02-11 Eyal Dror Structural support and tracking system
ES2354175T3 (en) * 2007-05-10 2011-03-10 PVSTROM SOLAR INVESTMENTS GMBH & CO.KG CARRIER SYSTEM FOR A SOLAR INSTALLATION WITH FOLLOW-UP DEVICE AND ASSEMBLY KIT.
US20120174962A1 (en) * 2011-01-06 2012-07-12 Google Inc. Controlling Movement of a Solar Energy Member
ES2453501T3 (en) * 2011-07-08 2014-04-08 Topper Sun Energy Technology Co., Ltd. Solar generator apparatus with cable controlled tracking
US20170163208A1 (en) * 2015-12-07 2017-06-08 Solarcity Corporation Ratcheting stow mechanism for solar tracking photovoltaic panel mounting system
ES2650288T3 (en) * 2014-08-15 2018-01-17 Ophthalmosystem Gmbh Sun tracking device for solar modules with false elastic or flexible joints

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2354175T3 (en) * 2007-05-10 2011-03-10 PVSTROM SOLAR INVESTMENTS GMBH & CO.KG CARRIER SYSTEM FOR A SOLAR INSTALLATION WITH FOLLOW-UP DEVICE AND ASSEMBLY KIT.
WO2010016060A2 (en) * 2008-08-04 2010-02-11 Eyal Dror Structural support and tracking system
US20120174962A1 (en) * 2011-01-06 2012-07-12 Google Inc. Controlling Movement of a Solar Energy Member
ES2453501T3 (en) * 2011-07-08 2014-04-08 Topper Sun Energy Technology Co., Ltd. Solar generator apparatus with cable controlled tracking
ES2650288T3 (en) * 2014-08-15 2018-01-17 Ophthalmosystem Gmbh Sun tracking device for solar modules with false elastic or flexible joints
US20170163208A1 (en) * 2015-12-07 2017-06-08 Solarcity Corporation Ratcheting stow mechanism for solar tracking photovoltaic panel mounting system

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