KR20210011252A - Lighting control apparatus cultivating plants - Google Patents

Abstract

The present invention relates to a light control device for plant cultivation having light efficiency improvement and air conditioning functions. The device is installed at a plant cultivation site. With the present invention, uniform and effective light transfer to a plant cultivation region is possible and air circulation, carbon dioxide fertilization, and temperature and humidity control can be effectively performed. The device includes: a light control main body formed of a light-transmitting material; a light guide unit formed above so that external light is condensed and guided into the main body; a light leakage prevention unit formed in the main body and preventing the light transferred to the inside from leaking to the outside; and a light scattering unit formed in the lower portion in contact with the light leakage prevention unit so that the light transferred into the main body is scattered.

Description

Light control device for plant cultivation with improved light efficiency and air conditioning function {LIGHTING CONTROL APPARATUS CULTIVATING PLANTS}

The present invention relates to a light control device for plant cultivation having a function of improving light efficiency and air conditioning, and more specifically, it is installed in a plant cultivation area to effectively transmit light evenly to the plant cultivation area, and circulation of air and fertilization of carbon dioxide Wow, it relates to a light control device for plant cultivation having an air conditioning function and light efficiency improvement that can effectively perform temperature and humidity control functions.

In general, agricultural products including vegetables were cultivated mainly in the open field, but they cannot be cultivated in winter and require a lot of land. In addition, as safety issues for agricultural products have recently emerged, various research activities have been conducted with interest in plant factories capable of producing pesticide-free and pollution-free agricultural products.

For example, as a technology related to a plant factory, a method of cultivating spinach using mineral quality in a closed plant factory system disclosed in Korean Patent Publication No. 10-1900643 has been proposed.

The above-described technology not only saves energy by identifying the optimum mineral quality for the growth of spinach in a closed plant factory system, but also promotes the growth of spinach, and applies it to a large-scale plant factory system to mass-produce high-quality spinach.

However, since the above-described conventional closed plant factory system uses artificial light, the leaf area index increases compared to the open field according to plant growth, and over-humidity occurs due to excessive humidity due to the denseness of the inside of the plant community, thus reducing growth and quality as well as disease and pest damage. There is a problem that causes it.

And, unlike the conventional cultivation system using natural light, the artificial light source supplies light in a Top-Down method, so sufficient light is provided in the lower part of the upper layer (below the plant canopy) where the leaves of plants grow lushly. There is a disadvantage that growth imbalance occurs because it does not reach.

Or, the conventional cultivation system has a disadvantage of causing a growth deterioration and a growth imbalance because the flow of air flow is not smooth due to the tightness of plants.

In addition, in the conventional cultivation system using artificial light, in order to solve the above problem, a method of arranging a reflector so that artificial light does not leak out of the cultivation space is utilized, but the heat generated from the light source is not discharged, so that the temperature inside the cultivation space is high. As it rises, there is still a limit that cannot prevent the decline in growth.

Korean Patent Registration No. 10-190064 "A method of cultivating spinach using mineral quality in a closed plant factory system" Korean Patent Registration No. 10-1234015 "Lighting device for multi-layered media" Korean Patent Registration No. 10-1246396 "Optical transmission system with condensing device" (Paper 0001) “Growth of dropwort plants and their accumulation of bioactive compounds after exposure to UV lamp or LED irradiation”, SCI, (J Sci Food Agric 2014; 94: 197-204)

The present invention has been proposed in light of the above contents, and provides a light control device for plant cultivation having an air conditioning function and light efficiency improvement so that light use efficiency can be improved by allowing light to be evenly and effectively transmitted to the plant cultivation area. There is this.

Another object of the present invention is the light control for plant cultivation having an air-conditioning function and improving light efficiency to improve the growth and quality of plants by effectively performing air circulation and carbon dioxide fertilization, temperature control and humidity control functions. To provide a device.

In order to achieve the above object, a light control device for plant cultivation having a function of improving light efficiency and air conditioning according to the present invention comprises: a light control body formed of a light-transmitting material; A light guide part formed on the upper part to condense external light and guide the light into the light control body; A light leakage prevention unit formed on the light control body to prevent the light transmitted to the inside from leaking to the outside; And a light scattering unit formed at a lower portion in contact with the light leakage preventing unit to scatter the light transmitted to the inside of the light control body.

The light control device for plant cultivation having an improved light efficiency and air conditioning function according to the present invention may include an internal light reflecting unit formed at the lower end of the light control body to reflect light transmitted to the outside.

The internal light reflecting part may be formed of an internal light reflecting protrusion or a convex mirror in which a reflective coating layer is formed on a curved surface in an arc shape.

In addition, the light control device for plant cultivation having improved light efficiency and air conditioning function according to the present invention may be configured to include a utility supply line formed inside the light control body to supply utility supplied from the outside to the plant cultivation site. .

The utility supply line includes a moving line part formed in the light control body in a vertical direction; An inlet part formed on the upper part of the light control body to communicate with the moving line part; And a discharge part formed under the light control body to communicate with the moving line part.

On the other hand, the light control device for plant cultivation having an improved light efficiency and air conditioning function according to the present invention is characterized in that it includes a light generator installed inside the light control body.

A UV light source unit installed below the light generating unit and supplying light for sterilization and plant growth control; And a light control unit for controlling driving of the UV light source unit.

The light control body may be formed of a rod-shaped member made of a light-transmitting material, and the light guide portion may be composed of a hemispherical condensing lens formed on an upper end of the light control body.

The light leakage prevention part is installed on the outer surface of the light control body to be spaced apart from the light guide part, and a scattering prevention surface formed on the inside to prevent the outflow of light transmitted to the inside of the light control body, and the light control body It may be composed of a planar member having an external light reflecting surface formed on the outside to reflect external light applied toward the outer surface to the plant growth area.

The light scattering unit may be installed on an outer surface of the light control body and formed of a diffusely reflective surface member formed of a diffusely reflective material, or a scratch portion formed on the outer surface of the light control body.

According to the light control device for plant cultivation having improved light efficiency and air conditioning function according to the present invention, light can be evenly transmitted to the lower part of the upper layer where the leaves of the plant grow lushly, thereby improving the light use efficiency and plant cultivation efficiency. . In addition, since it is possible to effectively supply light required for photosynthesis without excessive addition of an artificial light source, energy costs can be reduced, and there is an advantage in that it can eliminate the adverse effect of plant growth due to heat generated by the installation of an excessive artificial light source.

The light control device for plant cultivation having improved light efficiency and air conditioning function according to the present invention has an effect of improving the efficiency and quality of plant cultivation by stably performing carbon dioxide fertilization because a utility supply line is further provided. .

In addition, the utility supply line can supply cold air to the plant growth area, such as in summer, warmth in winter, and easily supply dry air for humidity control, so that it can effectively control temperature and humidity. There is an advantage.

In addition, the utility supply line can circulate air even when a separate utility is not supplied, so that the imbalance of temperature and humidity in the vertical direction in the plant growth area can be resolved, and ventilation can be secured, thereby improving growth characteristics and It can improve the quality of plants.

In addition, the light control device for plant cultivation having an improved light efficiency and air conditioning function according to the present invention can perform a sterilization effect and increase functional components in the plant growth area by using UV rays emitted through the light generating unit. The freshness retention time can be increased by applying light stress to existing plants.

1 is a schematic configuration diagram showing a light control device for plant cultivation having improved light efficiency and air conditioning functions according to a first embodiment of the present invention;
2 is a view for explaining the operation of the light control device for plant cultivation having improved light efficiency and air conditioning function according to the first embodiment of the present invention;
3 is an exploded perspective view showing in more detail the light control device for plant cultivation having improved light efficiency and air conditioning functions according to the first embodiment of the present invention;
4 is a schematic configuration diagram showing a light control device for plant cultivation having improved light efficiency and air conditioning functions according to a second embodiment of the present invention;
5 is an exploded perspective view showing in more detail the light control device for plant cultivation having an improved light efficiency and air conditioning function according to a second embodiment of the present invention;
6 is a schematic configuration diagram showing a light control device for plant cultivation having improved light efficiency and air conditioning functions according to a third embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6 of the accompanying drawings, but the same reference numerals are assigned to the same components in FIGS. 1 to 6 to be described.

On the other hand, in each drawing, a detailed description of a configuration that can be easily recognized by a person of ordinary skill in the art from a general technique, and actions and effects therefor, will be simplified or omitted. In addition, since the present invention is characterized by a light control device for plant cultivation having an improved light efficiency and an air conditioning function, the related parts will be shown and described, and the description of the remaining parts will be simplified or omitted.

1 is a schematic configuration diagram showing a light control device for plant cultivation having improved light efficiency and an air conditioning function according to a first embodiment of the present invention. FIG. 2 is a light efficiency improvement and air conditioning function according to the first embodiment of the present invention. 3 is an exploded perspective view showing in more detail the light control device for plant cultivation having an improved light efficiency and air conditioning function according to the first embodiment of the present invention. Part is an enlarged cross-section and surface of the indicated part.

1 to 3, the light control device for plant cultivation having improved light efficiency and air-conditioning function according to the first embodiment of the present invention enables the light to be effectively transmitted to the lower layer of the plant cultivation area, and the light control body (1) ), a light guide unit 2, a light leakage prevention unit 3, and a light scattering unit 4 are provided.

The light control body 1 is a component installed in a plant cultivation area to receive external light and evenly supply it to the plant cultivation area, and is formed of a light-transmitting material such as glass, polycarbonate, and acrylic.

Further, the light control body 1 is formed of a rod-shaped member having a substantially columnar shape, and may be formed of a polygonal rod-shaped member such as a triangle or a square, but in this embodiment, it is formed in a cylindrical shape.

The light guide unit 2 is a constituent element formed on the upper portion of the light control body 1 by condensing external light, and is composed of a hemispherical condensing lens formed on the upper end of the light control body 1.

In addition, in addition to the shape shown in FIG. 1, the light guide unit 2 may be configured in various ways without any particular limitation on its structure or shape as long as it is capable of condensing external light and guiding it into the interior of the light control body 1.

The light leakage prevention unit 3 is a component for preventing the light transmitted into the light control body 1 from leaking to the outside, and a light scattering unit connected by preventing the light moving inside the light control body from being scattered to the outside in a certain section. It performs the function leading to (4).

For example, the light leakage prevention unit 3 is installed on the outer surface of the light control body to be spaced apart from the light guide unit 2, from the point where the light is condensed by the light guide unit 1 to the start point of the light scattering unit 3 It is formed in height (length).

The light leakage preventing unit 3 may be selected without special limitation as long as it is a means for blocking light from being scattered to the outside, but in this embodiment, it is inside to prevent leakage of light transmitted to the inside of the light control body. It is composed of a surface member for preventing light leakage having an anti-scattering surface 31 formed and an external light reflection surface 32 formed on the outside to reflect external light applied to the light control body 1 to the plant growth area. Here, the surface member for preventing light leakage may be typically composed of a silver foil film.

In this way, when the light leakage prevention surface member is selected as the light leakage prevention part 3 and is attached to the outer surface of the light control body 1, the scattering prevention surface 31 blocks the outflow of light that moves inside, while the light scattering part 4 ), and when external light is irradiated, the external light reflection surface 32 reflects it to the plant growth area, thereby minimizing the occurrence of shade.

The light scattering unit 4 is configured to scatter light transmitted to the interior of the light control body 1 and supply it to the plant growth area, and is formed under the light leakage preventing unit 3.

Further, the light scattering unit 4 may be formed in various structures and shapes as long as it can scatter light transmitted from the upper layer and emit it to the outside. For example, the tube scattering part 4 may be installed on the outer surface of the light control body 1 and formed of a diffusely reflective surface member in the form of a transparent film formed of a diffusely reflective material, but in this embodiment, a scratch part formed on the outer surface of the light control body It consists of (42). Here, the scratch portion 42 is to form a scratch (scratch) by scraping the outer surface of the light control body using a sharp tool so that effective diffuse reflection is achieved.

On the other hand, the light control device for plant cultivation having an improved light efficiency and an air conditioning function according to the first embodiment of the present invention has internal light in order to more effectively emit light transmitted from the upper layer of the light control body 1 toward the plant growth area. The reflecting part 5 is comprised.

The internal light reflecting unit 5 is disposed at the lower end so as to face the light moving through the light control body 1 to reflect the light and emit it toward the light scattering unit 4.

In addition, the internal light reflecting part 5 may be formed of an internal light reflecting protrusion having a reflective coating layer formed on the curved surface and formed in an arc shape. In this case, the reflective coating layer may be formed by applying a reflective film or a paint having reflective properties.

In addition, the internal light reflecting part 5 can be configured by installing a convex mirror.

On the other hand, the internal light reflecting unit 5 can be configured in a way that is integrally embedded in the light control body 1, but as shown in Fig. 3, the light control body 1 It is constructed in a way that it is joined to the bottom of the. In this case, the internal light reflecting part 5 has a fastening part 52 formed with a fastening screw part formed on the internal light reflecting body 51.

The light control body 1 has a receiving groove 15 having a shape corresponding to the internal light reflecting part 5 at the bottom, and a fastening screw part (not shown) to which the fastening part is fastened is formed in the receiving groove 15 Has been.

In addition, the light control body 1 may be further configured with a fixing means (not shown) for maintaining a solid fixed state in a state installed in a cultivation facility. For example, the fixing means may be configured in a manner such as installing a fixing bracket under the light control body so that it can be fixed to a cultivation facility or a cultivation site.

Hereinafter, the operation of the light control device for plant cultivation having improved light efficiency and air conditioning function according to the first embodiment of the present invention will be briefly described.

Light control for plant cultivation by forming a light guide unit 2, a light leakage prevention unit 3, a light scattering unit 4, and an internal light reflection unit 5 in the light control body 1 as shown in Fig. 2 After the device is manufactured, it is installed on the official plate of the plant cultivation facility using the artificial light source (L) at predetermined intervals or inserted into the installation hole formed on the official plate.

In this state, when the light is irradiated to the light guide unit 2 by lighting of the artificial light source (L) composed of an LED module, etc., the artificial light is condensed by the action of a hemispherical condensing lens and then guided to the lower part of the light control body (1) Delivered.

In this way, the light directed downward is not scattered to the outside by the light leakage prevention unit 2 attached to the outer surface of the light control body 1 and is stably transmitted toward the light scattering unit 4. At this time, the external light reflecting surface 32 of the light leakage prevention unit 2 reflects the incident light from the light emitted from the artificial light source L without passing through the light control body and supplies it to the plant growth area. It performs the function of reducing the shade that can be formed by (1).

Thereafter, the light transmitted to the light scattering unit 4 by the action of the light leakage prevention unit 2 is used for photosynthesis while being emitted toward the plant growth area by the scattering effect of the scratch unit. In this case, the internal light reflecting unit 5 serves to emit downward incident light by refracting the light scattering unit 4 to the outside.

As described above, the light control device for plant cultivation having improved light efficiency and air conditioning functions according to the first embodiment of the present invention can transmit light to the lower part of the upper layer where the leaves of the plant grow lushly, so photosynthesis without the addition of an artificial light source. It can effectively supply the light required for Accordingly, it is possible to improve the efficiency of plant cultivation, reduce the number of artificial light sources installed, reduce energy costs, and prevent adverse effects on plant growth caused by heat that may occur due to excessive installation of artificial light sources. There is an advantage.

Hereinafter, another embodiment according to the present invention will be described, but detailed descriptions of components similar to the components shown in the above-described first embodiment will be omitted, and components having differences will be mainly described. Further, in the following other embodiments, as long as a structure that can be adopted among the elements shown in the first embodiment or the elements shown in different embodiments may be selectively applied, detailed descriptions or drawings will be omitted.

Figure 4 is a schematic configuration diagram showing a light control device for plant cultivation having improved light efficiency and air conditioning function according to the second embodiment of the present invention, Figure 5 is a light efficiency improvement and air conditioning function according to the second embodiment of the present invention It is an exploded perspective view showing in more detail the light control device for plant cultivation having.

4 and 5, the light control device for plant cultivation having an improved light efficiency and air conditioning function according to a second embodiment of the present invention includes a light control body 1, a light induction part 2, and a light leakage prevention part ( 3), a light scattering unit 4 and an internal light reflecting unit 5 are provided, but a utility supply line 6 is further provided to effectively perform air circulation, carbon dioxide fertilization and temperature control and humidity control functions. Has been.

The utility supply line 6 is a passage formed inside the light control body 1 to supply utilities (meaning carbon dioxide, hot air, cold air, etc.) supplied from the outside to plant cultivation. The moving line part 61 formed in the vertical direction, the inlet part 62 formed at the top to communicate with the moving line part 61, and the discharge part 63 formed at the bottom to communicate with the moving line part 61 ).

It is preferable that a connection nozzle (not shown) is installed in the inlet 62 so that a pipe or a hose is connected. The connection nozzle may be connected to a supply line (not shown) of air supplied from a blower or an air conditioner, or a supply line (not shown) for supplying carbon dioxide.

The discharge part 63 is formed of a plurality of discharge holes formed along the circumference of the light control body 1.

And, the light control body 1 is formed with a receiving groove 15 having a shape corresponding to the internal light reflecting portion 5 at the bottom, the depth of formation of the receiving groove 15 is the internal light reflecting portion 5 In the installed state, it is concave to provide a space (d). Here, the spaced space (d) communicates with the moving line part 61 and communicates with the discharge hole configured as the discharge part 63, thereby performing the function of a flow path for ejecting carbon dioxide or the like.

As described above, the light control device for plant cultivation having improved light efficiency and an air conditioning function according to the second embodiment of the present invention transmits light to the lower as well as the upper layer where the leaves of the plant grow thickly, as in the first embodiment. At the same time, since the utility supply line 6 is further provided, the efficiency of plant cultivation and the quality of the produced plants can be further improved.

For example, when carbon dioxide is required to be fertilized, when the carbon dioxide supply line is connected to the inlet part 62, the carbon dioxide moves and ejects through the moving line part 61 and the discharge part 63, and then moves from the bottom to the top in order. As carbon dioxide is supplied to the rear of the leaf, photosynthesis is maximized, and the growth characteristics of plants can be improved.

And, in the case of supplying cold air to the plant growth area for cooling in the summer, warming in the winter, or supplying dry or humid air for humidity control, the utility ( When the supply line (hot, cold, dry air) is connected, it moves and ejects through the moving line part 61 and the discharge part 63, and then moves from the bottom to the top, so that it is possible to effectively control temperature and humidity. .

In addition, the utility supply line 6 forms a path for circulation of air leading to the inlet part 62, the moving line part 61 and the discharge part 63 even when a separate utility is not supplied. Through the flow, it is possible to resolve the imbalance of temperature and humidity in the vertical direction in the plant growth area, and to secure ventilation, thereby improving the growth characteristics and improving the quality of plants.

6 is a schematic configuration diagram showing a light control device for plant cultivation having improved light efficiency and air conditioning function according to a third embodiment of the present invention.

6, a light control device for plant cultivation having an improved light efficiency and an air conditioning function according to a second embodiment of the present invention includes a light guide unit 2, a light leakage prevention unit 3, and a light control body 1, The light scattering unit 4, the internal light reflecting unit 5 and the utility supply line 6 are provided, and supplying power to the light generating unit 7 and the light generating unit installed inside the light control body 1 A power supply unit (not shown) is further configured.

The light generating unit 7 is provided with a UV light source unit 71 installed at the bottom to supply light for sterilization and plant growth control, and a light control unit 72 for controlling the driving of the UV light source unit 71 As a result, it is built in the internal light reflecting part 5.

The UV light source unit 71 is formed of a UV LED module having a diffusing lens. For example, the UV LED module may be composed of a UVA or UVB LED module that emits UVB light in a wavelength range of 280 nm to 320 nm or UVA light in a wavelength range of 320 nm to 400 nm to induce stress on plants.

The light control unit 72 is a configuration that performs a control function to enable the ON/OFF operation of the UV light source unit as well as lighting at a desired time. Power supplied to the UV light source unit according to a signal input through an input unit (not shown). A microcomputer (not shown) or a switching circuit (not shown) is provided to regulate the flow.

In addition, the input unit may include a time input unit (not shown) composed of an input button or a touch panel for inputting the lighting time of the UV light source unit, and an illumination sensor (not shown) capable of detecting contrast.

The power supply unit may be composed of a commercial power supply unit that supplies commercial power, a DC power supply unit that receives commercial power and adjusts it to have a specific voltage and current value, or a battery.

The light control device for plant cultivation having improved light efficiency and an air conditioning function according to the modification of the second embodiment of the present invention uses UV rays emitted through the light generator 71 to sterilize and function in the plant growth area. Ingredient increase can be performed, and the freshness retention time can be increased by applying light stress to the plants at the harvest time.

The synergistic effect of the above-described functional ingredients and freshness is achieved by irradiating UV rays for about 1 hour after the start of the light/dark period at the time of sunset and sunrise using the light generator 71 at the time of harvest of the plant to artificially reduce light stress to the plant. It can be done in a way that is approved In this way, when a plant is subjected to light stress, the plant undergoes secondary metabolism for survival and functional components are accumulated in the plant. In addition, the pores that perform photosynthesis are closed, thereby reducing the evaporation amount of moisture, thereby increasing the freshness maintenance time of the harvested plants.

The configuration and operation of the light control device for plant cultivation having improved light efficiency and air conditioning according to an embodiment of the present invention described above has been described, but this is only an example, and those of ordinary skill in the art It will be appreciated that some of the above-described embodiments may be substituted and modified without departing from the spirit.

Therefore, it should be understood that the scope of protection of the present invention extends to the invention and its equivalents described in the claims.

1: light control body
2: light induction part
3: Light leakage prevention part
4: light scattering part
5: internal light reflection part
6: Utility supply line
61: moving line part
62: inlet
63: discharge part
7: light generator
71: UV light source unit
72: light control unit

Claims (10)

In the light control device for plant cultivation,
A light control body formed of a light-transmitting material;
A light guide part formed on the upper part to condense external light and guide the light into the light control body;
A light leakage prevention unit formed on the light control body to prevent the light transmitted to the inside from leaking to the outside; And
A light control device for plant cultivation having a light efficiency improvement and air conditioning function, comprising: a light scattering unit formed at a lower portion in contact with the light leakage preventing unit to scatter light transmitted to the inside of the light control body.
The method of claim 1,
Light control device for plant cultivation having an air conditioning function and improving light efficiency, characterized in that it comprises an internal light reflecting unit formed at the lower end of the light control body to reflect the transmitted light to the outside.
The method of claim 2,
The light control device for plant cultivation having a function of improving light efficiency and air conditioning, characterized in that the inner light reflecting part is formed of an inner light reflecting protrusion or a convex mirror having a reflective coating layer formed on a curved surface in an arc shape.
The method of claim 1,
Light control device for plant cultivation having a function of improving light efficiency and air conditioning, characterized in that it comprises a utility supply line formed inside the light control body to supply utility supplied from the outside to the plant cultivation.
The method of claim 4,
The utility supply line,
A moving line part formed in the light control body in a vertical direction;
An inlet part formed on the upper part of the light control body to communicate with the moving line part; And
A light control device for plant cultivation having a function of improving light efficiency and air conditioning, comprising: a discharge unit formed under the light control body to communicate with the moving line unit.
The method of claim 1,
Light control device for plant cultivation having a function of improving light efficiency and air conditioning, characterized in that it comprises a light generator installed inside the light control body.
The method of claim 6,
A UV light source unit installed below the light generating unit and supplying light for sterilization and plant growth control; And
Light control device for plant cultivation having a light efficiency improvement and air conditioning function, characterized in that it comprises a light control unit for controlling the driving of the UV light source unit.
The method according to any one of claims 1 to 7,
The light control body is formed as a rod-shaped member of a light-transmitting material,
The light guide unit is a light control device for plant cultivation having a function of improving light efficiency and air conditioning, characterized in that it is composed of a hemispherical condensing lens formed on the upper end of the light control body.
The method of claim 8,
The light leakage prevention part is installed on the outer surface of the light control body to be spaced apart from the light guide part, and a scattering prevention surface formed on the inside to prevent the outflow of light transmitted to the inside of the light control body, and the light control body Light control device for plant cultivation having an air conditioning function and improved light efficiency, characterized in that it is composed of a planar member having an external light reflecting surface formed on the outside to reflect external light applied toward the outer surface to the plant growth area.
The method of claim 8,
The light scattering part is installed on the outer surface of the light control body and is formed of a diffusely reflective surface member formed of a diffusely reflective material, or a scratch part formed on the outer surface of the light control body. Device.

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