TWI764527B - solar trellis - Google Patents

Abstract

A solar rack includes a rack, a solar unit, and a light penetration diffusing unit. The trellis defines a crop space suitable for growing a plurality of crops. The solar unit is erected on the top of the scaffold for receiving solar energy to generate electricity. The light penetrating diffusing unit and the solar unit are arranged at the top of the shelf in parallel, and the light penetrating diffusing unit is made of light-transmitting material, and allows the light to penetrate and diffuse into the crop space. By disposing the light penetration diffusing unit on the top of the scaffold, the area originally shaded by the solar energy units can also be illuminated by the light by diffusing the light by the light penetration diffusing unit. Therefore, the benefit of solar power generation can be taken into account. It is consistent with the quality of crop production, and also has the effect of low cost and easy promotion.

Description

solar trellis

The present invention relates to an agricultural power co-construction facility, in particular to a solar scaffold.

With the global emphasis on environmental protection, green energy has become one of Taiwan's energy development goals. However, due to the limited land area in Taiwan, the land demand for green energy development will inevitably conflict with agricultural development. Therefore, the development of co-construction facilities for agriculture and green energy (i.e., agricultural power co-construction facilities) that can share land is the basis for Taiwan's green energy development. one of the primary research goals.

In agricultural power co-construction facilities (such as solar photovoltaics), the shading rate and abnormal light penetration rate formed by the installation of solar panels will cause changes in the micro-meteorological environment such as illumination, temperature, humidity, wind speed and wind direction inside the facility. and variation, and further affect the soil and biological environment inside the facility, and ultimately affect the production quality of cultivated crops. When the agricultural power co-construction facility has the problem of high solar panel shading rate, and the high shading rate causes insufficient light, the agricultural power co-construction facility will produce abnormal physiological and metabolic functions of crops, inhibited growth rate, stunted growth, fruit size and quantity Restrictions and other issues, which in turn significantly reduce the quality of crop production.

In order to allow the crops to get sufficient sunlight, the current solution is to increase the height of the solar panels to increase the lateral light, or install movable solar panels. However, the former needs to increase the height of the scaffolding and the scaffolding must be raised The strength of the steel structure can only support the increased structure, and the latter must be equipped with a mobile track and an electric control module, both of which will greatly increase the cost.

Therefore, the purpose of the present invention is to provide a solar scaffold that can take into account the power generation benefit and the quality of crop production, and has a lower cost.

Therefore, the solar scaffold of the present invention is suitable for planting a plurality of crops, and includes a scaffold, a solar unit, and a light penetration diffusion unit.

The scaffolding defines a suitable crop space for the crops to be grown.

The solar unit is erected on the top of the scaffold for receiving solar energy to generate electricity.

The light penetrating diffusing unit and the solar unit are arranged at the top of the shelf in parallel, and the light penetrating diffusing unit is made of light-transmitting material, and allows the light to penetrate and diffuse into the crop space.

The effect of the present invention is: by disposing the light penetration diffusing unit at the top of the scaffold, the area originally shaded by the solar energy units can also be illuminated by sunlight by diffusing the light by the light penetration diffusing unit. , which can take into account the benefits of solar power generation and the quality of crop production, and also has the effects of low cost and easy promotion.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , an embodiment of the solar scaffold of the present invention is suitable for planting a plurality of crops 9 , and includes a scaffold 2 , a solar unit 3 , and a light penetration diffusing unit 4 . Wherein, this embodiment preferably further includes a watering unit 7 .

The scaffold 2 defines a crop space 23 suitable for the crops 9 to be planted, including a plurality of uprights 21 , and a space on top of the uprights 21 for the solar units 3 and the light penetration diffuser 4 to be arranged. Top frame portion 22 . The uprights 21 and the top frame portion 22 together define the crop space 23 . The uprights 21 can be implemented with cement poles or hot-dip galvanized C-shaped steel, and the top frame portion 22 can be implemented with hot-dip galvanized C-shaped steel.

The setting plane S of the top frame portion 22 can be set according to the angle of the light receiving plane L of the solar units 3. For example, taking Taiwan as an example, considering the latitude of Taiwan, the angle θ1 between the setting plane S and the horizontal plane P is preferably It is between 0 and 25 degrees, more preferably between 5 and 8 degrees, so that the effect of resisting strong winds during typhoon periods can be improved, and the setting plane S is preferably substantially facing the south, and the setting plane S is The horizontal angle between the normal line and due south is preferably between -5 and 5 degrees.

The solar unit 3 (Photovoltaic Module) is erected on the top of the scaffold 2, and the solar unit 3 includes a plurality of solar modules 31 for receiving solar energy to generate electricity. Since a person with ordinary knowledge in the technical field to which this case belongs can select an appropriate type of solar energy unit 3 for use according to actual needs, the details are not repeated here.

Among them, the solar units 3 preferably adjust the angle of the light-receiving plane L according to the installation location. For example, taking Taiwan as an example, considering the latitude of Taiwan, the angle θ2 between the light-receiving plane L and the horizontal plane P is preferably between It is between 0 and 25 degrees, preferably between 5 and 8 degrees. In this way, the effect of resisting strong winds during typhoon periods can be improved, and the light-receiving plane L is preferably substantially oriented to the south, and the method of the light-receiving plane L The horizontal angle between the line and due south is preferably between -5 and 5 degrees.

The light penetration diffusing unit 4 and the solar unit 3 are disposed on the top of the scaffold 2 in parallel. The light penetration diffusing unit 4 includes at least one light penetration diffusing module 41 . The light penetrating diffusing unit 4 is made of light-transmitting material, and allows the light to penetrate and diffuse into the crop space 23 .

The at least one light penetrating diffusion module 41 and the solar modules 31 are alternately arranged on the top of the scaffold 2 . For example, as shown in FIG. 3 , the light penetrating diffusion unit 4 includes a light penetrating diffusion module 41 , and the light penetrating diffusion unit 4 is located at the central position of the top of the shelf 2 (see FIG. 2 ), and between the solar modules 31 . Or as shown in FIG. 4 , the solar unit 3 includes a plurality of solar modules 31 and the light penetrating diffusion unit 4 includes a plurality of light penetrating diffusion modules 41 , the solar modules 31 and the light penetrating diffusion modules 41 The groups 41 are staggered along an arrangement direction X. Or as shown in FIG. 5 , the solar modules 31 and the light penetration diffusion modules 41 are staggered in a checkerboard shape. Those with ordinary knowledge in the technical field of the present invention can select the number of the solar modules 31 and the light penetration diffusion modules 41 according to actual needs. When a larger scaffold 2 needs to be erected due to the requirement of installing large-scale equipment, a larger number of the solar modules 31 and the light penetration diffusing modules 41 must be arranged in accordance with the size of the scaffold 2 .

The light-transmitting material is, for example, glass, PET (polyethylene terephthalate, ethylene terephthalate), PS (Polystyrene, polystyrene), PE (polyethylene, polyethylene), PP (Polypropylene, polypropylene), PC (Polycarbonate, polycarbonate), PVC (Polyvinyl Chloride, polyvinyl chloride), PMMA (polymethyl methacrylate, polymethyl methacrylate, also known as acrylic), MMA (methyl methacrylate, methyl methacrylate) among them one or a combination thereof.

Referring to FIG. 1 , the light penetrating diffusion unit 4 can make the light penetrating by frosting the surface, or forming embossing, or laser engraving, or a combination of any two of the foregoing, or a combination of the foregoing three. post-diffusion. The light penetration diffusing unit 4 is preferably implemented by a diffractive optical element (Diffraction Optical Element, abbreviated as DOE), which can take into account the light diffusing effect and have a lighter weight and volume. Wherein, the implementation of the light penetration diffusing unit 4 can be selected according to actual needs. For example, the use of frosted treatment is low in price and good in effect, hot pressing to form embossing, or laser engraving, or precision injection molding is relatively expensive but It has better directivity and can precisely control the scattering direction of light.

The light penetrates and then diffuses, and the top plane of the crops 9 is defined as a crop plane H. The light penetration and diffusion unit 4 allows the sunlight (the thick black arrow at the upper part in FIG. 1 ) to penetrate and diffuse, and the diffused The irradiation area of the light rays (dotted line head in FIG. 1 ) on the crop plane H is not less than the projected area of the crops 9 on the crop plane H. As shown in FIG. 1 , the crop plane H is generally a horizontal plane and approaches the horizontal section of the scaffold 2 at the height of the top of the crops 9 . In this way, the crops 9 under the solar unit 3 can still obtain sufficient sunlight.

Wherein, the ratio of the top surface area of the light penetration diffusing unit 4 to the solar units 3 is preferably between 1:1 and 1:2. In practical application, it can be adjusted according to the light diffusing effect of the light penetration diffusing unit 4 and the required irradiation area. In this way, both the power generation benefit of solar energy and the light energy required by the crops grown in the scaffold 2 can be taken into account.

Referring to FIG. 6 , the light penetration diffusion unit 4 preferably further includes at least one anti-reflection film 5 (Anti-reflection), and the number of the at least one anti-reflection film 5 is the same as that of the at least one light penetration diffusion module 41 and disposed on the top surface of the at least one light penetration diffusion module 41, the at least one anti-reflection film 5 is used for reducing reflection loss and increasing transmittance.

Wherein, the solar scaffolding preferably further includes a condensing unit 6 disposed above the light penetrating diffusing unit 4, the condensing unit 6 is made of light-transmitting material, and condensing light (the imaginary line in FIG. 6 and FIG. 7 ) arrow) and the light entering below penetrates the diffusion unit 4. The condensing unit 6 can be a convex lens structure as shown in FIG. 6 , or can be implemented with a semi-cylindrical shape, or a complex small convex lens structure as shown in FIG. 7 , or be made of diffractive optical elements. Those with general knowledge can choose according to actual needs, but not limited to this.

Referring to FIG. 1 , the watering unit 7 is arranged on the scaffold 2 for watering the crops 9 inside the scaffold 2 . The watering unit 7 can be set to supply water manually or automatically at regular intervals, and can The watering unit 7 is configured to be electrically connected to the solar energy units 3 , and uses the electrical energy generated by the solar energy units 3 to provide the watering unit 7 for use. Since those with ordinary knowledge in the art can infer the extended details according to the above description, no further description will be given.

Through the above description, the effect of this embodiment is as follows:

1. By arranging the solar unit 3 and the light penetration diffusing unit 4 in parallel on the top of the scaffold 2 , the incident sunlight can be diffused after passing through the light penetration diffusing unit 4 . In this way, even the area originally shaded by the solar units 3 can be irradiated by sunlight by diffusing the light through the light penetration diffusing unit 4 (as shown in FIG. 1 , the thick black arrows in the figure represent sunlight ), therefore, while taking into account the benefits of solar power generation, the crops 9 can also be irradiated by sufficient sunlight, thereby achieving stable production quality. In addition, compared with the conventional method of increasing the height of the shelf or setting the moving track, the present embodiment also has the effects of lower cost and convenient promotion.

2. By arranging the anti-reflection film 5, the reflection loss can be reduced and the transmittance can be increased, so the light energy entering the crop space 23 can be increased, and by arranging the light concentrating unit 6, it can also be improved to enter the crop space 23 light energy, so it can improve the production quality of these crops 9.

To sum up, the solar scaffold of the present invention can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the contents of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

2: Shelves

21: Column

22: Top shelf

23: Crop Space

3: Solar unit

31: Solar Modules

4: Light penetration diffuser unit

41: Light penetration diffuser module

5: Anti-reflection film

6: Condenser unit

7: Watering unit

9: Crops

L: light-receiving plane

S: set plane

P: horizontal plane

H: Crop plane

X: Arrangement direction

θ1: Set the angle between the plane and the horizontal plane

θ2: The angle between the light-receiving plane and the horizontal plane

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: 1 and 2 are schematic side views of an embodiment of a solar scaffold of the present invention; Figure 3, Figure 4, Figure 5 are schematic top views of various aspects of this embodiment; 6 is a schematic diagram of a light-concentrating unit disposed above a light-penetrating diffusion module of the embodiment; and FIG. 7 is a schematic diagram of another aspect of the light-concentrating unit of the embodiment disposed above the light-penetrating diffusion module.

2: Shelves

21: Column

22: Top shelf

23: Crop Space

3: Solar unit

31: Solar Modules

4: Light penetration diffuser unit

41: Light penetration diffuser module

7: Watering unit

9: Crops

H: Crop plane

Claims (9)

A solar scaffold, suitable for planting multiple crops, comprises: a scaffold, which defines a crop space suitable for the cultivation of these crops; a solar unit is erected on the top of the scaffold for receiving solar energy to generate electricity, the The light-receiving plane of the solar unit is substantially oriented to the south, and the horizontal angle between the normal line of the light-receiving plane and the due south is less than 5 degrees eastward; and a light-penetrating diffusion unit is arranged in the shed along a north-south direction with the solar unit. The top of the frame is inclined along the north-south direction, and the light-penetrating diffusion unit is made of light-permeable material, and the light penetrates and diffuses into the crop space. The solar rack according to claim 1, wherein the material of the light penetration diffusing unit is one of glass, PET, PS, PE, PP, PC, PVC, PMMA, MMA or a combination thereof. The solar scaffolding according to claim 1, wherein the surface of the light penetration diffusing unit is frosted, embossed, or laser engraved, or a combination of any two of the foregoing, or a combination of the foregoing three . The solar rack according to claim 1, wherein the light penetration diffusing unit is a diffractive optical element. The solar trellis according to claim 1, wherein the light penetrating diffusion unit comprises at least one light penetrating diffusion module, and at least one anti-reflection film disposed on the top surface of the at least one light penetrating diffusion module . The solar trellis according to claim 1, further comprising a light concentrating unit disposed above the light penetration diffusing unit, and the light concentrating unit is made of a light-transmitting material, The light that gathers light and enters the lower part penetrates the diffuser unit. The solar scaffolding according to claim 1, wherein the top plane of the crops is defined as a crop plane, the light penetrating and diffusing unit makes the light penetrate and then diffuse, and the diffused light is irradiated on the crop plane The area shall not be less than the projected area of the crops on the crop plane. The solar scaffolding according to claim 1, wherein the solar unit comprises a plurality of solar modules, the light penetration diffusion unit comprises a plurality of light penetration diffusion modules, the light penetration diffusion modules and the solar modules The groups are staggered at the top of the scaffold. The solar scaffold according to claim 1, wherein the angle between the light-receiving plane of the solar unit and the horizontal plane is between 5 and 8 degrees.

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