DE102006040931A1 - Device for focusing the sunlight for a solar photovoltaic generator - Google Patents

Abstract

The The invention relates to a device for focusing the sunlight for one solar photovoltaic generator, which is constructed such that the degree of light integration of the solar light irradiated on the solar cells is improved and thus the highest Energy efficiency can be achieved, with the facility for Focusing the sunlight for a solar photovoltaic generator according to the present invention a storage item, that is fixed on the ground; a rotating body, the on the bearing piece rotatably mounted about the X-axis; Focusing modules that on the rotary body rotatably mounted around the Y-axis and focus the sunlight and then convert it to electrical power; and a first and second angle adjustment assembly for rotating the rotary body and the focusing modules to the orientation angle of the focusing modules dependent from the altitude change and automatically adjust the sun's daily motion.

Description

(TECHNICAL PART)

The The invention relates to a device for focusing the sunlight for one solar photovoltaic generator, which is specially constructed in this way is that the degree of light integration of the radiant on the solar cells Sunlight is improved, thus achieving the highest energy efficiency can be.

in the general is understood by the term "plants for the production of electricity by means of the sunlight "one Device in which the light energy of the sun by means of solar cells converted into electrical power. The solar cells, which lead out PN junction semiconductor pass the function through, free electrons when irradiated with sunlight to generate and therefore electricity to induce.

In the facilities for the solar photovoltaic generator uses a focusing device, which superimposes sunlight on the surface of the solar cells irradiated. The degree of light integration of the focusing device depends directly on the energy efficiency of electricity generation plants, and is in proportional proportion to the area the focusing lenses for overlay, which are attached to the front of the solar cells.

Around the amount of electricity production of Installations for generating electricity by means of sunlight to increase, it is inevitable, the solar cells and the focusing lenses to enlarge. But in the conventional Focusing lenses will be many limitations in terms of Cost or structure in the enlargement of the focusing lenses occur so that so far the desire existed that the energy efficiency due to the increase in the layout of the focusing device is improved.

In addition, joined also the problem on that the amount of electricity production because of the change the amount of light incidence from the location of the sun is irregular, because the sun is rising moved relative to the earth from east to west and the height of the sun while the movement is constantly changing, but Nevertheless, the orientation angle is fixed in the conventional focusing device is.

(OBJECT OF THE INVENTION)

task It is the object of the present invention to provide a means for focusing of sunlight for To provide a solar photovoltaic generator, by their simple Building the degree of light integration of sunlight reaches the highest can be. Another object of the present invention is It is a device for focusing the sunlight for a Provide solar photovoltaic generator in which the orientation angle depending on the focusing module from the location change the sun can be set automatically. Further task of It is the object of the present invention to provide a means for focusing of sunlight for to provide a solar photovoltaic generator in which the focusing modules dependent from the location change can turn the sun more stable.

(CONSTRUCTION OF THE INVENTION)

The Device for focusing the sunlight for a solar photovoltaic Generator according to the present In order to achieve such objects, the invention may be a bearing piece which is firmly established on the ground; a rotary body which is rotatable on the bearing piece mounted around the X-axis; at least one focusing module, that on the rotary body rotatably mounted around the Y-axis and focus the sunlight and then convert it into electrical power; and a first and second angle adjustment arrangement for rotating the rotary body and of the at least one focusing module to determine the orientation angle of the at least one focusing module depending on the altitude change and automatically adjust the Sun's daily motion.

To the execution According to the present invention, the rotary body has a rotary frame with a first axis of rotation, which on the bearing piece in the direction of the X-axis is attached, and the at least one focusing module has a second axis of rotation, on the rotary frame in the direction attached to the Y-axis and over a line is arranged passing the center of the first Rotary axis corresponds.

According to the embodiment of the present invention, the rotary body may have a first rotation axis attached to the bearing piece in the X-axis direction; a horizontal support frame which is mounted across the center of the first axis of rotation; and vertical support racks, which are mounted perpendicularly from the two side ends of the horizontal support frame and at which the at least one Fokussie tion module is rotatably mounted, have.

To the execution According to the present invention, the at least one focusing module a second axis of rotation, at the vertical support racks in the Y-axis direction and flush with the horizontal support frame is attached have.

To the execution According to the present invention, the at least one focusing module additionally have a module frame with a lower end and a upper end, wherein at the lower end composed of a plurality of solar cells Solar panel is attached, and at the top end the first and second focusing lens mounted on both sides of the light-transmitting part are provided, which at the front the solar cell plate is formed, and wherein the second axis of rotation can be mounted on the center of gravity of the module frame.

To the execution In accordance with the present invention, a first angle adjustment assembly comprises Engine and a lifting device, wherein the motor attached to the bearing piece is, and the lifting device is moved by the engine and with a End of the rotary body is fastened by means of the hinge; and also a second angle adjustment arrangement has a motor and a lifting device, wherein the engine attached to the rotary body is, and the lifting device is moved by the engine and with a End is attached to the focusing modules by means of the hinge.

The versions of the present invention for example, be varied, and you should not they do not so understand that the scope of the present invention because of the executions, which explained below be limited becomes. These designs are intended for that a person skilled in the art can more easily understand the present invention. Accordingly, the shapes of the components in the figures are exaggerated shown to the explanation to emphasize more clearly.

The advantageous embodiments of the present invention will be apparent from the attached 1 to 5 explained in more detail. Furthermore, the components that perform the same function, provided with the same reference numerals.

The The principal purpose of the present invention is to increase the degree of light integration to improve the sunlight irradiated on the solar cells and thus maximizing energy efficiency. To achieve this, is the device for focusing the sunlight for a solar photovoltaic generator according to the present invention characterized in that the orientation angle of the focusing modules dependent from the location change the sun is automatically adjusted, and that the operation is to Setting the orientation angle of the focusing modules stable he follows.

(SHORT PRESENTATION OF THE PICTURES)

1 Fig. 11 is a view of the focusing device according to the first embodiment of the present invention;

2 is a bottom view of 1 ;

3 is a sectional view through the line AA of 2 ;

4 Fig. 12 is a diagram indicating the illuminance measured on the focusing surface of the solar cells;

5 Fig. 13 is a view showing the focusing device according to the second embodiment of the present invention.

(Embodiments)

1 to 3 FIG. 4 illustrates a view, a front view and a side view of the sunlight focusing device according to the embodiments of the present invention. FIG.

With reference to the 1 to 3 indicates the sunlight focusing device ( 100 ) of the present invention, a bearing piece ( 110 ), a rotary body ( 120 ), two focusing modules ( 130 ) and a first and a second angle adjustment arrangement ( 140 . 150 ) on.

The bearing piece ( 110 ) consists of two main struts ( 112 ), which are firmly established on the ground, and some auxiliary struts, which are the main struts ( 112 ).

The rotary body ( 120 ) has a rotating frame ( 124 ) with a first axis of rotation ( 122 ) located above the main struts ( 112 ) is rotatably mounted in the direction of the X-axis. The rotating frame ( 124 ) has a horizontal support frame ( 125 ) transversely through the center of the first axis of rotation ( 122 ) and vertical support racks ( 126 ) mounted vertically and upwardly from the two side ends. As mentioned, the rotary body ( 120 ) with the first axis of rotation ( 122 ) in the center of the horizontal support frame ( 125 ), which the heavy point of the rotating body ( 120 ) corresponds, in the direction of the X-axis on the bearing piece ( 110 ), so that it can be ensured, the rotary body ( 120 ) on the bearing piece ( 110 ) in the not too unilaterally inclined state (ie in the horizontally balanced state) set up.

The focusing modules ( 130 ) are at the upper end of the rotary body ( 120 ) rotatably mounted about the Y-axis. The focusing modules ( 130 ) consist of the solar cell plate ( 132 ) composed of a plurality of solar cells, a light-transmissive part ( 134 ) at the front of the solar panel ( 132 ) is formed, and the first and second focusing lens ( 136 ), which on both sides of the light-transmitting part ( 134 ) and focus the sunlight and then to the front of the solar panel ( 132 ).

The solar cell plate ( 132 ) is at the lower end ( 137a ) of the module frame ( 137 ) is mounted such that the end face of the solar cells is exposed upward, and the light-transmitting part ( 134 ) and the first and second focusing lenses ( 136 ) at the upper end ( 137b ) of the module frame ( 137 ) are mounted. The light-transmitting part ( 134 ) is perpendicular above the solar cell plate ( 132 ) with the same area as that of the solar panel ( 132 ) is formed, and is designed as a free space or from the transparent glass or the translucent lens such that the sunken sunlight without diffraction and is irradiated to the surface of the solar cell.

The first and second focusing lenses ( 136 ) consist of a plurality of Fresnel lenses, and they each diffract sunlight and irradiate it onto the surface of the solar cells. Accordingly, the sunlight, which is perpendicular through the light-transmitting part ( 134 ) and the sunlight passing through the first and second focusing lenses ( 136 ) is diffracted, irradiated on the surface of the solar cells, and the degree of light integration of the incident light corresponds to two or three times the area of the solar cell plate.

That is, the light transmitting part ( 134 ) and the first and second focusing lenses ( 136 ) in such a way that the sum of the widths of the light-transmitting part ( 134 ) and the first and second focusing lenses ( 136 ) two to three times the width of the solar panel ( 132 ). As a result, the degree of light integration of the light entering the light-transmitting part ( 134 ) and the first and second focusing lenses ( 136 ) and on the solar cell plate ( 132 ) is irradiated twice or threefold areas of the solar cell plate ( 132 ), so that the highest energy efficiency can be achieved.

Such focusing modules ( 130 ) have the second axis of rotation ( 138 ) located on the vertical support racks ( 126 ) is rotatably mounted in the direction of the Y-axis. The second axis of rotation ( 138 ) is arranged past a line which is the center of the first axis of rotation ( 124 ), and on both sides of the module frame ( 137 ) of the focusing modules ( 130 ) and at the vertical support racks ( 126 ) rotatably mounted. As mentioned, the two focussing modules ( 130 ) on the rotary body ( 120 ) are rotatably mounted in the direction of the Y-axis, but the mounting positions of the focusing modules are symmetrical to each other with respect to the first axis of rotation (FIG. 124 ) arranged at the two upper ends, so that the weight is not inclined to one side and a stable center of gravity can be offered.

With reference to the 4 is the first angle adjustment arrangement ( 140 ) for rotating the rotary body ( 120 ) in the X-axis direction depending on the height change of the sun, and the first angle adjustment arrangement (FIG. 140 ) consists of a motor ( 142 ), a drive ( 141 ), one of the engine ( 142 ) ascending or descending lifting device ( 144 ), and a control arrangement ( 146 ), which is the engine ( 142 ) of the drive ( 141 ) controls. At the main struts ( 112 ) is a bracket ( 118 ) attached to the attachment of the engine, and on the bracket ( 118 ) is the engine ( 142 ) appropriate. The lifting device ( 144 ) is at one end to the horizontal support frame ( 125 ) of the rotary body ( 120 ) by means of the hinge, and with another end to the motor ( 142 ) connected.

With reference to the 5 is the second angle adjustment arrangement ( 150 ) for rotating the on the rotary body ( 120 ) focusing modules ( 130 ) in the X-axis direction depending on the daytime movement of the sun, and the second angle adjustment arrangement (FIG. 150 ) consists of a motor ( 152 ), a drive ( 151 ), one of the engine ( 152 ) ascending or descending lifting device ( 154 ), and a control arrangement ( 156 ), which is the engine ( 152 ) of the drive ( 151 ) controls. The control arrangement ( 156 ) can be constructed such that the location change, which is dependent on the daily motion of the sun, in the control arrangement ( 156 ) and the engine ( 152 ) is controlled automatically. However, the structure is also possible that the control arrangement ( 156 ) drives the motor along the solar movement by means of the sensor which detects the location of the sun. At the vertical support racks ( 126 ) is a bracket ( 126a ) attached to the attachment of the engine, and to the bracket ( 126a ) is the engine ( 152 ) appropriate. The lifting device ( 154 ) is at one end to the module frame ( 137 ) of the focusing modules ( 130 ) by means of the hinge, and with another end to the motor ( 152 ) connected.

In addition to the drive mode, which is shown in these embodiments and in which a motor is used, are on the drives ( 141 . 151 ) of the first and second angle adjustment arrangements ( 140 . 150 ) Also applicable to various types of drive, for example, a drive mode by means of a hydraulic cylinder.

Like in the 4 and 5 is shown, the orientation angle of the focusing modules ( 130 ) in the sunlight focusing device ( 100 ) according to the present invention by the first angle adjustment arrangement ( 140 ) and the second angle adjustment arrangement ( 140 . 150 ) are set automatically, so that the degree of light integration of the solar cells can always be maintained in the optimum state.

Meanwhile The present invention can be applied to the solar light focusing device for the production of electricity be varied in various ways by means of sunlight and include different variants. But you should understand this, that the present invention is not limited to those in the embodiments explained limited special form but all of them Variants, equivalences and supersedes within the spirit and scope of this present invention Invention defined by the appended claims.

(EFFECT OF THE INVENTION)

As explained above, has the sunlight focusing device according to the present invention the special effect that the degree of light integration of sunlight can be successfully improved by the simple construction, so that the production costs are saved and the energy efficiency is increased can. This invention also has the pronounced effect that the sunlight focusing means according to the present Invention the orientation angle of the focusing modules depending on the location change of Sun sets automatically, so that regardless of the location of the sun the degree of light integration of the solar cells is always maintained in the optimum state and thus increase the amount of electricity production can. The sunlight focusing device according to the present invention Invention has the significant effect that the focusing modules relative to the first axis of rotation of the rotary body at the two upper ends symmetrically to each other and are rotatably mounted, so that the Weight is not too unilaterally inclined and thus a stable center of gravity can be offered, and therefore the stable rotational movement of the focusing modules guaranteed can be.

110

stock items

120

rotating body

130

focusing modules

140

the first angle adjustment arrangement

150

the second angle adjustment arrangement

Claims (6)

Device for focusing the sunlight for a solar photovoltaic generator, characterized in that it is a storage piece, which is firmly placed on the ground; a rotary body which is rotatably mounted on the bearing piece about the X-axis; at least one focusing module rotatably mounted on the rotating body about the Y axis and focusing the sunlight and thereafter converting it to electric power; and first and second angle adjustment arrangements for rotating the rotating body and the at least one focusing module to automatically adjust the orientation angle of the at least one focusing module depending on the altitude change and the daytime movement of the sun. Device for focusing the sunlight for a solar photovoltaic generator, characterized that the rotary body a rotary frame having a first axis of rotation, which on the stock items in the direction of the X axis, and that at least a focusing module has a second axis of rotation, the attached to the rotary frame in the direction of the Y-axis and via a Line passing is arranged, which is the center of the first axis of rotation equivalent. A device for focusing the sunlight for a solar photovoltaic generator, characterized in that the rotary body has a first rotation axis attached to the bearing piece in the X-axis direction; a horizontal support frame which is mounted across the center of the first axis of rotation; and vertical support racks, which are mounted vertically from the two side ends of the horizontal support frame and to which the at least one focusing module is rotatably mounted has. Device for focusing the sunlight for a solar photovoltaic generator, characterized in that the at least one focusing module has a second axis of rotation, at the vertical support racks of the rotating body mounted in the direction of the Y axis and flush with the horizontal support frame is. Device for focusing the sunlight for a solar photovoltaic generator, characterized in that the at least one focusing module additionally a module frame having a lower end and a upper end, being at the lower end the solar cell plate composed of a plurality of solar cells is attached, and at the upper end of the first and second focusing lens are attached, on both sides of the light-transmitting part are provided, which is integrally formed on the front of the solar cell plate is, and wherein the second axis of rotation on the center of gravity of the module frame is attached. Device for focusing the sunlight for a solar photovoltaic generator, characterized that the first angle adjustment arrangement comprises a motor and a lifting device having the motor is mounted on the bearing piece, and the Lifting device is moved by the motor and with one end the rotary body is fastened by means of the hinge; and that too the second Angle adjustment assembly a motor and a lifting device , wherein the motor is mounted on the rotary body, and the Lifting device is moved by the motor and with one end the focusing modules is attached by means of the hinge.