• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a torque-transmitting mechanism for activating and braking the rotary movement of solar energy collectors (6) for solar tracking systems, which comprises one or more connecting rods (1) for pushing and pulling which are connected at one end, by means of articulated joints (1.1), to an arm (2) that rotates together with the solar energy collectors (6) about a torsion shaft (4), and connected at the other end, by means of articulated joints (1.1), to a drive means (3).
    公开号:ES2738924A1
    申请号:ES201990086
    申请日:2017-06-20
    公开日:2020-01-27
    发明作者:Argaiz Javier Errea
    申请人:Dasein Ingenieros S L；
    IPC主号:
    专利说明:

    [0001]
    [0002]
    [0003]
    [0004] OBJECT OF THE INVENTION
    [0005]
    [0006] The object of the invention is a torque transmitter mechanism for solar tracker drive that produces or slows the rotation of one or more rows of solar energy collectors around a torsion axis. It is also the object of the present invention the solar tracker that uses said torque transmitting mechanism.
    [0007]
    [0008] BACKGROUND OF THE INVENTION
    [0009]
    [0010] A solar tracker is formed by a set of solar energy collectors assembled to a support structure that tracks the movement of the sun and guides the solar energy collectors so that they remain properly positioned with respect to the sun's rays.
    [0011]
    [0012] The single-axis solar trackers are those in which the energy collectors are configured to rotate around torsion axes generally oriented in the north-south direction. These followers traditionally comprise rows of structures consisting of fixed and mobile parts, and actuator mechanisms that drive the rotation movement of solar energy collectors around the torsion axes.
    [0013]
    [0014] Among the actuator mechanisms, the most commonly used are linear actuators, in which the different rows of the follower are connected by linear transmission transverse bars connected to an electric or hydraulic motor. These actuators have the disadvantage of being able to present mechanical problems of various kinds, such as buckling by extension of the linear actuator assembly.
    [0015] The alternative to linear actuators is made up of rotary actuators. The current state of the art of rotary actuators is limited to actuators in which the axis of their rotation means is located at the same level or alignment as the torsion axis of solar energy collectors.
    [0016]
    [0017] A drawback associated with the elevation or alignment to which said actuators must necessarily be located is that they are exposed to direct radiation from the sun or in areas close to solar energy collectors that reach high operating temperatures. This means that motors and other components that are part of rotary actuators often require additional maintenance.
    [0018]
    [0019] Another drawback of rotary actuators that are part of the state of the art is that they tend to protrude above the surface formed by solar energy collectors, which can cause shadows and decrease the performance of solar energy collectors.
    [0020]
    [0021] DESCRIPTION OF THE INVENTION
    [0022]
    [0023] The invention presented here proposes a torque transmitting mechanism for solar tracker drive comprising push and pull rods connected to a driving means located at a different height than the torsion axis of the solar energy collectors.
    [0024]
    [0025] The torque transmitting mechanism object of the present invention is characterized in that the axis of rotation of its driving means, the torsion axis of the solar energy collectors and the articulated joints of the push and pull rods that make up the transmission system of even, they constitute the vertices of one or more parallelograms or trapezoids of mechanical transmission.
    [0026]
    [0027] The invention allows the most sensitive mechanical elements that make up the torque transmitting mechanism can be located in favorable positions, protected from direct sunlight and away from the high operating temperatures of solar energy collectors.
    [0028] The torque transmitting mechanism object of this invention can be located below the solar energy collectors, without protruding above the surface formed by the solar energy collectors, and without projecting shadows that decrease the performance of the collectors.
    [0029]
    [0030] The torque transmitting mechanism object of this invention can share structural support with the supports of the solar tracker and have good accessibility for inspection and maintenance.
    [0031]
    [0032] The invention encompasses the solar tracker comprising a series of supports on which torsion shafts are configured on which the solar energy collectors are fixed, transmission means comprising articulated push arms and bars, and a torque transmitting mechanism. for the follower drive as described above.
    [0033]
    [0034] DESCRIPTION OF THE DRAWINGS
    [0035]
    [0036] To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented:
    [0037]
    [0038] Figure 1: Cross-sectional schematic view of a solar tracker according to an embodiment of the invention.
    [0039]
    [0040] Figure 2: Cross-sectional schematic view of the torque transmitting mechanism according to an embodiment of the invention in which the torque transmitting mechanism comprises two or more connecting rods directly articulated to a driving means. The figure shows the positions of flagging and rotation of the solar collectors.
    [0041] Figure 3: Schematic view of the parallelograms formed by the articulated joints of the push and pull rods, the axis of rotation of the driving means and the torsion axis of the solar energy collectors for the embodiment example of Figure 2.
    [0042]
    [0043] Figure 4: Cross-sectional schematic view of the torque transmitting mechanism according to an embodiment of the invention in which the torque transmitting mechanism comprises a single push and pull rod directly articulated to a driving means. The figure shows the positions of flagging and rotation of the solar collectors.
    [0044]
    [0045] Figure 5: Schematic view of the parallelogram formed by the articulated joints of the push and pull rod, the axis of rotation of the driving means and the torsion axis of the solar energy collectors for the embodiment example of Figure 4.
    [0046]
    [0047] Figure 6: Cross-sectional schematic view of the torque transmitting mechanism according to an embodiment of the invention in which the torque transmitting mechanism comprises two or more connecting rods articulated to one or more semi-arms that rotate in solidarity with a driving means. The figure shows the positions of flagging and rotation of the solar collectors.
    [0048]
    [0049] Figure 7: Schematic view of the parallelograms formed by the articulated joints of the push and pull rods, the axis of rotation of the driving means and the torsion axis of the solar energy collectors for the embodiment example of Figure 6.
    [0050]
    [0051] Figure 8: Cross-sectional schematic view of the torque transmitting mechanism according to an embodiment of the invention in which the torque transmitting mechanism comprises a single connecting rod articulated to a single half-arm that rotates in solidarity with a driving means. The figure shows the positions of flagging and rotation of the solar collectors.
    [0052] Figure 9: Schematic view of the parallelogram formed by the articulated joints of the push and pull rod, the axis of rotation of the driving means and the torsion axis of the solar energy collectors for the embodiment example of Figure 8.
    [0053]
    [0054] Figure 10: Transverse schematic view of the torque transmitter mechanism according to an embodiment of the invention in which the torque transmitter mechanism is configured in the form of a trapezoid. The figure shows the positions of flagging and rotation of the solar collectors.
    [0055]
    [0056] Figure 11: Schematic view of the trapeziums formed by the articulated joints of the push and pull rod, the axis of rotation of the driving means and the torsion axis of the solar energy collectors for the embodiment example of Figure 10.
    [0057]
    [0058] PREFERRED EMBODIMENT OF THE INVENTION
    [0059]
    [0060] In the exemplary embodiments shown in the drawings, the torque transmitting mechanism object of the invention is observed, which comprises one or more articulated push and pull rods (1) attached to a driving means (3).
    [0061]
    [0062] In each exemplary embodiment, it can be seen that the axis of rotation (3.1) of the driving means (3) is at a different height and alignment than the torsion axis (4) of the solar energy collectors (6).
    [0063]
    [0064] In each exemplary embodiment, it is appreciated that the articulated joints (1.1) of the ends of the push and pull rods (1), the axis of rotation (3.1) of the driving means (3), and the torsion axis (4) of the solar energy collectors (6), form the vertices of one or more parallelograms (5) or trapezoids (11) of mechanical torque transmission. This characteristic configuration is illustrated schematically in Figures 3, 5, 7, 9 and 11 for different variants of the invention.
    [0065] The driving means (3) in the embodiments of each of the different variants of the invention illustrated in the drawings, is comprised of an electric, electromechanical or hydraulic motor or servomotor connected to a driving wheel, which can be any variant solid or lightened discs, gears, pulleys or toothed crowns with the ability to rotate around an axis of rotation (3.1).
    [0066]
    [0067] The solar energy collectors (6) illustrated in the figures may comprise the different variants and configurations of photovoltaic panels, solar thermal collectors, parabolic cylinders or reflective mirrors commonly used in solar radiation collection systems.
    [0068]
    [0069] An example of embodiment of the solar tracker object of this invention can be seen in Figure 1. The solar tracker comprises a torque transmitting mechanism as described above and one or more rows of solar energy collectors (6) that rotate around torsion shafts (4) supported by a series of supports (9) that transmit their loads to the terrain (10). It is appreciated that the torque transmitting mechanism can be supported on one of the supports (9) that serve as a support for solar energy collectors (6).
    [0070]
    [0071] When the solar tracker is composed of several rows of solar energy collectors (6) the different rows can be connected by means of articulated arms (7) and push bars (8) to unify and thus reduce the number of torque transmission mechanisms present in the follower.
    [0072]
    [0073] The torque transmitting mechanism shown in Figure 1 is illustrated in more detail in Figure 2. This figure represents a variant of the invention formed by two or more push and pull rods (1) connected by articulated joints (1.1 ) to a driving means (3) and by means of other articulated joints (1.1) to an arm (2) that rotates in solidarity with a torsion axis (4). This variant of the invention has advantages of compensation of the mechanical tensile and thrust forces associated with the transmission of twist or brake torques of the solar energy collectors (6) since these are distributed between the different push and pull rods ( one).
    [0074] Figure 4 shows a variant of the invention formed by a single push and pull rod (1) connected by an articulated joint (1.1) to a driving means (3) and by another articulated joint (1.1) to an arm ( 2) that rotates in solidarity with a torsion shaft (4).
    [0075]
    [0076] Figure 6 shows a variant of the invention formed by two or more push and pull rods (1) connected by articulated joints (1.1) to one or more semi-arms (2.1) that rotate in solidarity with the driving means (3), and by means of other articulated joints (1.1) to an arm (2) that rotates jointly with a torsion axis (4). This variant of the invention has advantages of reducing the tensile and compressive stresses in the tension and push rods (1) for the transmission of equivalent pairs to the solar energy collectors (6). This variant of the invention also allows reducing the dimensions of the drive means (3) for equivalent torque transmissions.
    [0077]
    [0078] Figure 8 shows a variant of the invention formed by a single push and pull rod (1) connected by means of an articulated joint (1.1) to a half-arm (2.1) that rotates in solidarity with the driving means (3), and by another articulated joint to an arm (2) that rotates in solidarity with a torsion shaft (4).
    [0079]
    [0080] Figure 10 shows a variant of the invention similar to that of Figure 2, but in which the push and pull rods (1) and their respective joints (1.1) are trapezoidally configured with respect to the axis of rotation (3.1) of the drive means (3) and the torsion axis (4).
    [0081]
    [0082] A variant of the present invention designated as a polar solar tracker would be one in which the torsion axes (4) of the solar tracker maintain an inclination angle with the ground (10) between 0 and 30 degrees.
    权利要求:
    Claims (1)
    [0001]
    1.- Solar tracker, which includes:
    a series of supports (9) that serve as support for torsion shafts (4) on which solar energy collectors (6) are fixed forming rows,
    transmission means connecting the torsion shafts (4) comprising articulated arms (7) and push bars (8),
    an actuator mechanism for actuating or rotating brake of the solar energy collectors (6) comprising one or more push and pull rods (1) connected by one of its ends by means of articulated joints (1.1) to an arm (2) which rotates in solidarity with the solar energy collectors (6) around one of the torsion axes (4), and connected at its other end by means of articulated joints (1.1) to a rotation mechanism (3) in which the axis of rotation (3.1) of the rotation mechanism (3) is at a different height than the torsion axes (4) of the solar energy collection means (6), and in which the articulated joints (1.1) of the ends of the push and pull rods (1) together with the axis of rotation (3.1) of the rotation mechanism (3) and the torsion axis (4) of the solar energy collectors (6) constitute the vertices of one or more parallelograms ( 5) mechanical torque transmission,
    characterized in that a single actuator mechanism is capable of generating the rotational movement of all torsion axes (4) simultaneously.
    two. Solar tracker according to claim 1, wherein the actuator mechanism is characterized in that one or more push and pull rods (1) are connected by one of their ends by means of articulated joints (1.1) to one or more semi-arms (2.1) jointly joined to the rotation mechanism (3).
    Solar tracker according to any of the preceding claims, wherein the actuator mechanism is characterized in that the rotation (3) comprises a rotation axis (3.1), a driving wheel and a motor connected to the driving wheel.
    5. Solar tracker according to any of the preceding claims, wherein the torsion axes (4) are horizontal and parallel to the ground surface (10).
    6. - Solar tracker according to any of the preceding claims, wherein the torsion axes (4) have an inclination angle greater than 0 degrees with respect to the ground surface (10).
    one
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    引用文献:
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    US20110265784A1|2010-04-28|2011-11-03|Chang Kuei-Hsiang|Solar tracker|
    CN201994875U|2010-05-25|2011-09-28|张晋|Large power double rod hinge depression angle tracking three-dimensional solar energy lighting device|
    JP6156444B2|2015-06-26|2017-07-05|ダイキン工業株式会社|Solar power system|
    CN106385229B|2016-10-26|2018-06-01|中山市菲龙照明科技有限公司|It is a kind of can rotational angle automatically solar energy cell plate mounting bracket|EP3765136A4|2018-03-13|2021-12-29|Hamad Medical Corporation|Multi-function hypospadias catheter|
    CN112187156A|2020-10-27|2021-01-05|宁波市路棠电子科技有限公司|Solar charging equipment is tracked to high-efficient intelligence|
    法律状态:
    2020-01-27| BA2A| Patent application published|Ref document number: 2738924 Country of ref document: ES Kind code of ref document: A1 Effective date: 20200127 |
    2020-08-21| FA2A| Application withdrawn|Effective date: 20200817 |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/ES2017/070449|WO2018234591A1|2017-06-20|2017-06-20|Torque-transmitting mechanism for solar tracker activation|
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