WO2010089435A1

WO2010089435A1 - Solar follower

Info

Publication number: WO2010089435A1
Application number: PCT/ES2010/000054
Authority: WO
Inventors: Héctor Alberto PÉREZ PUEYO
Original assignee: Perez Pueyo Hector Alberto
Priority date: 2009-02-04
Filing date: 2010-02-03
Publication date: 2010-08-12
Also published as: ES1069603Y; ES1069603U

Abstract

Solar follower on which are mounted energy capture plates and that comprises a generally triangular prismatic shape frame (2), which incorporates an axle (3) bearing a plurality of arms (4), the axle (3) being rotary, by means of a series of runners, and whose frame (2) is arranged on a supporting structure, defined by a first tubular body (5) whose closed external base has a central circular protrusion (6) and whose lateral surface has a perimetral shoulder (7) seating a first runner on which is arranged a second tubular body (8) whose external base is fitted with a radial extension in the form of a circular crown (9) fitted to the outline of the central circular protrusion (6) of the first tubular body (5), resting on the first runner of the frame (2).

Description

SOLAR TRACKER

DESCRIPTION

OBJECT OF THE INVENTION

The following Utility Model, as expressed in the statement of the present specification, refers to a solar tracker, being of the type of solar trackers that mount the corresponding energy collection plates used in the field of solar energy, of so that the essential characteristics of the solar tracker object of the invention are based on its support base, on the axis of rotation of the support arms of the solar energy collection plates and on the hinged support arms of the aforementioned plates.

Thus, by means of the base structure of support it is possible to obtain a distribution of forces extending its useful life and avoiding breakage of some components.

Likewise, by having hinged support arms for hinged solar energy collection plates, it is possible to assemble the plates at the factory and facilitate their transport by being able to hinge the arms leaving their internal section, with respect to their axis of rotation, horizontal position and its outer section in vertical position.

FIELDS OF APPLICATION

This report describes a solar tracker, which is of special application for installation in the assembly of "solar gardens", which are constituted as an enclosure or space in which a plurality of solar trackers have been installed.

BACKGROUND OF THE INVENTION

As renewable energy is known in recent times, it has had a great boom which has led to them having undergone an important development. Entering to consider solar energy, based on the use of solar radiation, the different uses include solar thermal energy and photovoltaic solar energy, so that the means used for this are based on the so-called "solar trackers" that are provided with a plurality of solar radiation collection plates.

In this way, in order to obtain optimum performance, solar trackers are installed in enclosures or enclosed spaces creating the so-called

"solar gardens" that allow, by grouping a large number of solar trackers simplify the infrastructure and services necessary for normal operation.

On the other hand, different models of solar trackers are known in the market, so that among them we can mention those that are formed by a support mast of the assembly structure of the components thereof, whose structure is associated with a crown gear rotating that engages in a fixed toothed crown integral with the mast.

Thus, all the stresses produced are transmitted to the gear of said toothed crowns which causes wear, and even breakage, of the teeth, which is a serious inconvenience.

In addition, as a result of the significant boom that solar energy has acquired, there are numerous documents related to it, and, as an example, we can cite the documents: ES 2253099; ES 2283233; ES 1063906; ES 1064278 and ES 1065162.

In the patent document ES 2253099 a "solar tracker" is described, consisting of a column or mast that ends in a castor to which the support frame of the photovoltaic panels arranged in separate rows at different levels and two slopes is rotatably fixed. .

In patent document ES 2283233 a "solar tracker" is described, consisting of a column and two telescopic extendable arms articulated to the side of the same, also having a cardan ball joint, a plate-holder frame and a panel of photovoltaic panels. In document ES 1063906 a "two-axis solar tracker on a rolling platform" is described, which is constituted by a platform with motorized wheels that circulate on a circular crown-shaped pavement, achieving the rotation of the solar tracker on a vertical axis. . In document ES 1064278 a "single-pole solar tracker" is described, consisting of a pole on which a rotating upper support is mounted from which a plurality of divergent arms are born at the ends of which are mounted articulated crossbars.

In document ES 1065162 a "photovoltaic solar tracker" is described, consisting of a trapezoidal configuration frame to which a structure defined by a series of first ribs is fixed to which some second ribs are fixed, orthogonal to those, and arranged in the same sense as a plurality of mounting brackets of photovoltaic panels. On the other hand, the aforementioned frame has skates that slide on a circular rim of "T" section.

We can also cite documents US 6,465,766; US 2005/0284467; US 2005/0279953; WO 2005/116534 and EP 1860386.

DESCRIPTION OF THE INVENTION A solar tracker is described herein, it refers to a solar tracker, being of the type of solar trackers that mount the corresponding energy collection plates used in the field of solar energy, so that the follower solar is constituted by a frame, generally triangular prismatic, which incorporates a carrier axis of a plurality of arms, the rotating axis being, through a series of second impellers, and whose frame is arranged on a support structure, defined by a first tubular body with its closed external base provided with a circular central projection and provided, on its lateral surface, with a perimeter seat projection of a first impeller on which a second tubular body with its external base provided with a radial extension in the form of an adjusted circular crown next to the circular central projection of the first tubular body, settling on the first impeller the frame.

The series of second impellers, through which the carrier axis of the plurality of arms on which the energy collection plates are mounted, rotates, are on one side integral to the frame structure and on the other hand they are integral with the own shaft

The first impeller is seated and fixed, on one of its sides, on the perimeter projection of the lateral surface of the first tubular body, and on the other hand it is fixed to the second tubular body and the frame, the side being seated on the fixed projection and the side integral to the second tubular body and the rotating frame.

On the other hand, a section of a first toothed circular crown is attached to the circular central projection of the outer base of the first tubular body in which a screw transmitting the movement of a first motor mounted on the frame engages. Likewise, a section of a second toothed circular crown that engages in an auger screw transmitting the movement of a second motor mounted on the frame is fixed to the carrier axis of the support arms of the energy collection plates.

The support arms of the energy capture plates and integral with the shaft have, on both sides of the shaft, a hinged end section, being aligned by means of a pair of plates.

In this way, it is allowed that in the factory itself all the energy collection plates be mounted and at the time of its transport it can be hinged by the arms remaining with their ends in an upright position occupying a smaller space.

To complement the description that is going to be carried out below, and in order to help a better understanding of the characteristics of the invention, this descriptive report is accompanied by a set of drawings, whose figures are illustrative and not limiting , the most characteristic details of the invention are represented. BRIEF DESCRIPTION OF THE DESIGNS

Figure 1. It shows a perspective view of the basic structure of a solar tracker, being able to observe the drive motor of a rotating frame and the drive motor of the shaft to which the mounting arms of the energy capture plates are integral.

Figure 2. It shows a schematic, frontal view of the basic structure of a solar tracker, being able to observe the assembly of the frame on the support structure and the axis to which the mounting arms of the energy collection panels are fixed. Figure 3. It shows a schematic view in side elevation of the frame and the axis to which the mounting arms of the energy collection panels are fixed.

Figure 4. Shows a schematic view of the support structure of the solar tracker, being able to observe how the frame is mounted on an impeller to which a second external tubular body is attached to a first fixed tubular body, so that both tubular bodies by their upper base a circular crown-shaped section is attached.

Figure 5. Shows a schematic plan view of the circular crown section integral to the fixed frame support structure on which an endless drive motor attached to said frame acts.

PREFERRED EMBODIMENT OF THE INVENTION

To the list of the aforementioned figures and according to the numbering adopted we can observe how the solar tracker 1 is constituted by a frame 2, generally triangular prismatic, whose frame 2 is arranged on a support structure and on whose frame 2 it mounts , through some impellers, an axis

3 to which a plurality of arms have joined 4.

The mounting support structure of the frame 2 is defined by a first tubular body 5 which by one of its base is fixed to the ground and by its other external base is closed forming a circular central projection 6, so that the first tubular body 5 it has, on its lateral surface and radial perimetral position, a projection 7 on which a first impeller and a second body are arranged tubular 8 supported on the first impeller and closed by its external base, in the form of a circular crown 9, to the circular central projection 6 of the external base of the first tubular body 5.

This first impeller, on one side 10, is fixed to the projection 7 fixed to the first tubular body 5 and on the other hand 11 is fixed to the second tubular body 8.

In addition, as the extension in the form of a circular crown 9 of the external base of the second tubular body 8 remains in proximity to the contour of the circular central projection 6 of the first fixed tubular body 5 the horizontal stresses will be supported by them, allowing to obtain an adequate distribution of efforts, since, the vertical forces are supported by the first impeller on the support of the frame, increasing its useful life when its components suffer less fatigue.

On the other hand, a first circular toothed crown section 12 is attached to the circular central projection 6 of the outer base of the first tubular body 5, in which a motion transmission worm 13 engages from a first motor 14 mounted on the frame 2 .

Likewise, on the part 11 of the first impeller it supports the frame 2, so that when the first motor 14 is driven, the rotation of the auger 13, engaged in the first fixed gear 12, causes the rotational displacement of the frame 2 with the second tubular body 8 and part 11 of the first impeller, while section 10 of the first impeller remains fixed together with the first tubular body 5 and the projection 7 integral with it.

By means of this structure in which the second tubular body 8 rests on the first impeller and its external base is closed on the circular central projection 6 of the first tubular body 5, a perfect guidance and distribution of forces is produced. The axis 3 is mounted with respect to a series of second impellers that are fixed on one of its sides 15 to the upper structure of the frame 2 and on the other hand 16 are fixed to the axis 3 which mounts the plurality of arms 4 on which the profiles that will host the energy collection plates will be arranged. In addition, the frame 2 mounts a second motor 17 also provided with a screw for transmitting the movement to a section of a second serrated circular crown 18 integral with the axis 3. Thus, by means of the first motor 14, the displacement of the energy collection plates with respect to a vertical plane will be obtained, while through the second motor 17 the displacement will be obtained with respect to a horizontal plane, orienting the energy collection plates of the most suitable way. The arms 4 integral with the axis 3 have, on both sides of the axis 3, a rotating section allowing, as shown in Figure 3 of the designs, that on both sides the end section of the arms 4 can remain in an upright position. This execution has an important advantage for transport, since it allows the energy collection plates to be assembled at the factory and the follower fully assembled to be installed with great simplicity and speed.

When the solar tracker is to be installed, it will normally be arranged on a base 19 and the arms 4 will be aligned by means of pairs of plates. 20.

Claims

I ^a .- Solar tracker, being of the type of solar trackers that mount the corresponding energy collection plates used in the field of solar energy, characterized in that the solar tracker (1) is constituted by a frame (2), so general triangular prismatic, which incorporates a shaft (3) carrying a plurality of arms (4), the axis (3) being rotatable, through a series of impellers, and whose frame (2) is arranged on a structure of support, defined by a first tubular body (5) with its closed external base provided with a circular central projection (6) and provided on its side surface with a perimeter projection (7) of a first impeller seat on which a first second tubular body (8) with its external base provided with a radial extension in the form of a circular crown (9) adjusted to the contour of the central projection (6)

<circular of the first tubular body (5), the frame (2) settling on the first impeller. 2 .- Solar tracker according to claim Ia, wherein the series of second impellers, through which rotates the shaft (3) carrying the plurality of arms (4) on which the plates pickup are mounted energy, they are on the one hand integral to the structure of the frame (2) and on the other hand they are integral with the axis (3). 3 .- Solar tracker according ^to claim I, wherein the first impeller is seated and fixed by one side (10) on the projection (7) perimeter of the side surface of the first tubular body (5), and on the other hand (11) it is fixed to the second tubular body (8) and to the frame (2), the side (10) being seated on the fixed shoulder (7) and the side (11) integral with the second tubular body (8) ) and the swivel frame (2).

4 .- Solar tracker according to claim Ia, wherein the central projection (6) circular outer base of the first tubular body (5) a section of a first ring gear circle (12) which engages it sets a worm screw (13) transmitter of the movement of a first motor (14) mounted on the frame (2). 5 .- Solar tracker according ^to claim I, characterized in that the shaft (3) a section of a second annulus gear (18) engaging a screw is fixed endless transmitter of the movement of a second motor (17) mounted on the frame (2). -

6 .- Solar tracker according ^to claim I, characterized in that the arms (4) integral with the shaft (3) have, on both sides of the axis (3), a hinged end section, being aligned by a pair of flat bars (twenty).