KR20220118715A - Lighting duct apparatus for cultivating plants - Google Patents

Abstract

The present invention relates to a light duct device for light transmission and airflow, and more specifically, to a light duct device for light transmission and airflow capable of: evenly delivering light to the entire growth area of plants; and effectively performing air circulation, thereby improving the growth characteristics and quality of plants and increasing production. The light duct device for light transmission and airflow, according to the present invention, comprises: a light introduction unit which refracts incident light; a light transmission unit through which light refracted and incident from the light introduction unit passes; a light reflection unit which reflects the light passing through the light transmission unit toward plants; and a binding means which binds the light introduction unit, the light transmission unit, and the light reflection unit.

Description

LIGHTING DUCT APPARATUS FOR CULTIVATING PLANTS

The present invention relates to an optical duct device for light transmission and air flow, and more particularly, it can transmit light evenly to the entire growth area of a plant and effectively perform air circulation to improve the growth characteristics and quality of plants It relates to an optical duct device for light transmission and air flow capable of increasing the production capacity.

In general, agricultural products are mainly grown in the open field, but since cultivation is impossible in winter, greenhouse cultivation is widely performed.

Greenhouse cultivation can be cultivated in the winter, but ventilation is low compared to the open ground, so when the leaf area index increases, over-humidity occurs due to densification inside the plant community, which causes over-humidity, which leads to deterioration of growth and quality, as well as pests. .

In addition, greenhouse cultivation has a disadvantage in that when the leaves of plants grow luxuriantly, light does not reach the top and bottom evenly, resulting in a growth imbalance.

For example, in a plant cultivation system such as a natural light-dependent greenhouse in which crops are grown by binding crops in a vertical direction to a wire (high-wire method) such as tomatoes, paprika, and cucumber, photosynthesis is not performed smoothly in the case of the lower layer of plants with a small amount of light. Growth is unstable and production is reduced.

In order to solve this problem, recently, an LED auxiliary light source device called 'interlighting' is installed as an artificial light source device in an area with a small incident light amount.

This LED auxiliary light source device can stabilize the growth of plants by increasing the amount of light, and can reduce the decrease in production. The disadvantage is that the cost is excessively increased.

In addition, the LED auxiliary light source device blocks the entry of light or creates a shade to act as a hindrance to the even growth of plants, and has a limitation in that it cannot contribute at all to the ventilation of the air.

Korea Patent No. 10-1234015 "Lighting device for multi-layered badges" Korean Patent Registration No. 10-1246396 "Optical transmission system with condensing device" Korean Patent No. 10-190064 "Cultivation method of spinach using light quality in a closed plant factory system"

The present invention has been proposed in view of the above, and it is possible to evenly transmit light to the entire growing area of a plant, effectively perform air circulation, improve the growth characteristics and quality of plants, and increase production. It is an object to provide an optical duct device for light transmission and air flow.

In order to achieve the above object, an optical duct device for light transmission and air flow according to the present invention is an optical duct device for light transmission and air flow, comprising: a light inlet for refracting incident light; a light transmission unit through which the incident light refracted from the light inlet unit passes; a light reflecting unit for reflecting the light passing through the light transmitting unit toward the plant; and binding means to which the light inlet part, the light transmission part, and the light reflection part are bound.

The light introduction unit may include a Fresnel lens unit that refracts the incident light toward the light transmission unit.

The light inlet may be formed in a cone or polygonal pyramid shape provided with an inclined surface on which light is incident, and a ventilation unit may be formed for movement of air.

The light transmission unit, a tubular body that is stretchable and has a hollow portion therein; an internal reflection layer formed on the inner surface of the cylindrical body; and an external reflective layer formed on the outer surface of the cylindrical body.

The light reflecting unit may be configured as a convex lens or a reflecting mirror disposed to face the light transmitting unit.

Preferably, the binding means includes a binding wire formed of a linear member, and the light inlet, the light transmitting part, and the light reflecting part are sequentially bound to the binding wire.

The binding wire is a first connecting portion having one end bound to a bracing installed in the transverse direction and the other end being bound to the light inlet portion, a second connecting portion disposed downwardly with the first connecting portion and bound to the upper end of the light transmitting portion, and It may be configured to include a third connection part that is disposed downwardly in succession with the second connection part and is coupled to a lower end of the light transmission part, and a fourth connection part that is sequentially disposed downward with the third connection part and is coupled to the light reflection part.

The optical duct device for light transmission and air flow according to the present invention includes a height adjusting means for adjusting the vertical height of the binding wire.

The height adjusting means may include a length adjustment line having one end bound to the brace and the other end being bound to at least one of the light inlet, the light transmitting unit, and the light reflecting unit.

The height adjustment means may include an adjustment wire driving means for adjusting the length by winding or unwinding the length adjustment wire.

The control line driving means may include a wheel part having a wheel on which the length adjustment line is wound; and a wheel drive motor for rotating the wheel.

According to the optical duct device for light transmission and air flow according to the present invention, the light incident to the upper layer is refracted and reflected by the light inlet, light transmission, and light reflector as it is irradiated to the lower layer of the plant lacking the amount of light. The light required for photosynthesis can be evenly delivered to all growth areas of the plant, and the air circulation can be effectively performed, so that the growth characteristics and quality of the plant can be improved, and the production can be increased.

1 is a schematic diagram for explaining an optical duct device for light transmission and air flow according to an embodiment of the present invention;
Figures 2a and 2b are schematic perspective views showing the shapes of the light inlet that can be applied in the optical duct device for light transmission and air flow according to an embodiment of the present invention;
3 is a schematic schematic diagram showing a movement path of light in an optical duct device for light transmission and air flow according to an embodiment of the present invention;
Figure 4 is an operation state diagram for explaining the light transmission unit and the height adjustment means of the optical duct device for light transmission and air flow according to an embodiment of the present invention;
5A to 5D are schematic usage state diagrams for explaining the operation of the optical duct device for light transmission and air flow according to an embodiment of the present invention, and FIGS. 5A and 5B are views between the cultivation beds where plants are grown It shows a form in which the light duct device is arranged in the passage, and FIGS. 5C and 5D show the form in which the light duct device is arranged inside the cultivation bed where plants are grown.
6 is a schematic diagram for explaining a modified example of the optical duct device for light transmission and air flow according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

On the other hand, in each drawing, a detailed description of a configuration that can be easily recognized by a person skilled in the art from the general technology, and an action and effect thereof will be simplified or omitted. In addition, since the present invention is characterized by an optical duct device for light transmission and air flow, the related parts will be mainly shown and described, and the description of the remaining parts will be simplified or omitted.

1 is a schematic diagram for explaining an optical duct device for light transmission and air flow according to an embodiment of the present invention, and shows the main components in a simplified manner to help understanding. Figures 2a and 2b are schematic perspective views showing the shapes of the light inlet that can be applied to the optical duct device for light transmission and air flow according to an embodiment of the present invention, Figure 3 is according to an embodiment of the present invention It is a schematic schematic diagram showing the movement path of light in an optical duct device for light transmission and air flow.

1 to 3, the optical duct device for light transmission and air flow according to an embodiment of the present invention is configured so that the light of the upper layer is irradiated to the lower layer so that it can be transmitted evenly to the growth area of the plant. As a characteristic feature, a light inlet unit (1), a light transmitting unit (2), a light reflecting unit (3) and a binding means (4) are provided.

The light inlet 1 is a component that refracts light incident on the upper layer of the greenhouse and guides it to the lower layer, and may be formed in various forms as long as it has a structure capable of irradiating downwardly by refracting the inclined incoming light.

The light inlet 1 may be formed in various shapes having an inclined surface 12 on which light is incident. For example, the light inlet 1 is preferably formed in the shape of a cone shown in FIG. 2A or a polygonal pyramid such as an octagonal pyramid or a quadrangular pyramid as shown in FIG. 2B . In addition, the light introduction unit 1 is provided with a Fresnel lens unit (not shown) for refracting the incident light toward the light transmitting unit 2 .

For example, the Fresnel lens unit includes a film in the form of a thin film sheet, and a general prism assembly formed on the film and formed in a plurality of sawtooth-shaped structures to refract light incident obliquely downward.

The film may be manufactured in a thin shape using a resin such as polymethylmethacrylate (PMMA) or polycarbonate (PC). In addition, the prism assembly may be attached to a film separately manufactured or may be integrally formed on the film itself.

In addition, if the Fresnel lens unit can refract the light incident on the inclined surface 12 into the hollow part of the cylindrical body constituting the light transmitting unit 2, it can be arranged in various forms. For example, according to the shape of the prism assembly, the Fresnel lens unit may be configured on the inclined surface 12 and the bottom surface of the light inlet 1, respectively, or may be configured only on the inclined surface.

Meanwhile, in the light inlet 1 , a plurality of ventilation holes 14 for air flow may be perforated on the inclined surface 12 as shown in FIG. 2B .

4 is an operation state diagram for explaining the light transmission unit and the height adjustment means of the optical duct device for light transmission and air flow according to an embodiment of the present invention.

1 to 4, the light transmission unit 2 is a component through which the light refracted and incident from the light inlet unit 1 passes. An internal reflective layer 22 formed on the inner surface of 21 and an external reflective layer 23 formed on the outer surface of the cylindrical body are provided. Here, the internal reflective layer 22 and the external reflective layer 23 may be configured in a form in which a reflective film is laminated or a paint having reflective properties is applied.

For example, the light transmitting unit 2 may be configured as a cylindrical body formed of a material such as a synthetic resin sheet or textile paper coated with a reflective layer on the inner and outer surfaces while having flexibility.

The light reflecting unit 3 is a component that reflects the light passing through the light transmitting unit 2, and may be configured without any particular limitation as long as it is a component that can easily reflect the incident light toward the plant.

For example, the light reflection unit 3 may be composed of a convex lens disposed to face the light transmission unit 2 or may be composed of a reflecting mirror.

In addition, the light reflection unit 3 is formed of a reflector having a substantially hemispherical shape, and scratches (not shown) may be formed on the surface so that diffuse reflection occurs in the process of reflecting light. In this case, the reflector is preferably formed in a form in which the interior of the hemispherical body is empty so as to minimize the weight.

The binding means (4) is a component for binding the light inlet (1), the light transmitting part (2), and the light reflecting part (3) by hanging at regular intervals, and is composed of a binding wire (4a) formed of a linear member. .

The binding wire 4a can be applied as a variety of linear members without any particular limitation as long as it can support the loads of the light inlet 1 , the light transmission 2 and the light reflection 3 . Preferably, the binding wire is formed of a transparent linear member such as a high-strength fishing line that can transmit light so as not to cause interference or shade the inflow of light. and the light reflection unit 3 are sequentially coupled. At this time, the light inlet part, the light transmitting part and the light reflecting part may have a binding hole formed so that the binding wire can be fastened, and a connecting ring line 16 as bound to the light inlet part 1 of FIG. 2A may be provided. can

And, the binding wire (4a) has one end bound to the bracing line 100 like a high-strength wire installed in the transverse direction, and the other end is bound to the light inlet part 1, the first connecting part 41, the first connecting part 41 and a second connection part 42 and a second connection part 42 that are arranged downwardly and are coupled to the upper end of the light transmission part 2 and a third connection part 43 that is arranged downwardly and is coupled to the lower end of the light transmission part, It consists of a third connection part 43 and a fourth connection part 44 which is arranged downwardly and is bound to the light reflection part 3 . Here, the first to fourth connecting portions 41, 42, 43, and 44 may be configured using a single binding wire, or may be configured by binding a separate binding wire for each section.

On the other hand, the first to fourth connecting parts 41, 42, 43, 44 for adjusting the positions of the light inlet unit 1, the light transmitting unit 2 and the light reflecting unit 3 and adjusting the length of the light transmitting unit 2 are performed. ) can be performed by adding or subtracting the length by hand, but in this embodiment, the height adjusting means 5 for adjusting the vertical height of the binding wire 4a is configured.

The height adjusting means 5 has a special limitation in structure or form if the position of the light inlet 1, the light transmitting unit 2 and the light reflecting unit 3 and the length of the light transmitting unit 2 can be adjusted. It can be variously configured without, but in the present embodiment, it may be composed of a length adjustment line 51 that is bound to at least one of the light inlet part, the light transmission part, and the light reflection part.

For example, the length adjustment line 51 is composed of a plurality of transparent linear members and one end is bound to the bracing line 100 , and the other end is bound to the lower end of the light reflecting unit 3 . As such, when the length adjustment line 51 as the height adjustment means 5 is bound to the light reflection unit 3, the length of the light inlet unit 1, the light transmission unit 2 and the light reflection unit is increased or decreased in a manner that increases or decreases. The position of (3) can be adjusted and the length of the light transmission unit (2) can be adjusted, so there is an advantage in that the irradiation position of the light directed to the plant can be appropriately adjusted.

Hereinafter, the operation of the optical duct device for light transmission and air flow according to an embodiment of the present invention will be briefly described.

5A to 5D are schematic usage state diagrams for explaining the operation of the optical duct device for light transmission and air flow according to an embodiment of the present invention, and FIGS. 5A and 5B are views between the cultivation beds where plants are grown It shows a form in which the light duct device is arranged in the passage, and FIGS. 5C and 5D show the form in which the light duct device is arranged inside the cultivation bed where plants are grown.

As shown in Fig. 5a, the optical duct device for light transmission and air flow according to an embodiment of the present invention is performed by planting and cultivating plants such as tomatoes in the medium 300 mounted on the cultivation stage 200. It can be installed in a way that binds to the brace 100 installed in the upper part of the greenhouse.

And, when the initial growth of plants or the amount of incoming light is sufficient, or when it is unnecessary to prevent interference during work, the length of the length adjustment line 51 is shortened as shown in FIGS. 5A and 5C to allow light inflow. The vertical length of the unit 1, the light transmitting unit 2, and the light reflecting unit 3 is minimized so that the light duct device is stored in the upper layer of the greenhouse.

In this state, when the amount of light does not flow into the lower layer of the plant due to the growth of the plant in this state or insufficient, the length of the length adjustment line 51 is lengthened as shown in FIGS. (2) and the light reflection unit (3) to be unfolded.

As such, when the light inlet unit 1, the light transmission unit 2, and the light reflection unit 3 are unfolded, the light incident on the upper layer of the greenhouse flows into the lower layer of the greenhouse through a sequential reflection process and then irradiates the plants. As a result, photosynthesis is activated to promote growth and increase production.

Referring to FIG. 3, when the movement process of light is described in more detail, when it flows into the inclined surface 12 of the light inlet 1, the inside of the hollow part of the cylindrical body composed of the light transmitting part 2 due to the refraction action of the Fresnel lens part. The reflected light is incident.

Among the light incident to the photoelectric part 2, the straight light goes straight to the lower light reflection part 3, and the light incident with an inclination angle is reflected by the internal reflection layer 22 formed on the inner surface of the cylindrical body 21. It is irradiated with the light reflection unit 3 while passing through.

In this way, the light introduced into the light reflection unit 3 is irradiated to the lower layer of the plant by the reflection action. can be provided effectively. At this time, the external reflective layer 23 also performs a function of irradiating light to the lower layer of the plant by reflection.

And, when the optical duct device for light transmission and air flow according to the present invention is wrinkled by manipulating the length adjustment line 51 as shown in FIG. 4 , the internal reflection layer 22 is wrinkled It is possible to improve the light irradiation efficiency by inducing diffuse reflection while the

In addition, since the light inlet unit 1, the light transmission unit 2, and the light reflection unit 3 communicate with each other, as described above, the air is moved in the process of guiding the light from the upper layer to the lower layer with insufficient light quantity. Because it plays the role of a passage, air circulation in the lower layer moves to the upper layer by convection and warm air in the upper layer moves to the lower layer, and the efficiency of heating can be improved through effective air movement. .

Hereinafter, a modified example according to the present invention will be described, but detailed descriptions of components similar to those of the above-described exemplary embodiment will be omitted, and components having differences will be mainly described. In addition, in the following modified examples, any structure that is employable among the components shown in one embodiment or components shown in different embodiments may be selectively applied, and detailed descriptions and drawings are omitted.

6 is a schematic diagram for explaining a modified example of the optical duct device for light transmission and air flow according to an embodiment of the present invention.

Referring to FIG. 6 , the optical duct device for light transmission and air flow according to a modified example of the present invention includes a light inlet 1 that refracts incident light, and a light that is refracted from the light inlet and passes through it. Transmitting unit 2, light reflecting unit 3 through which the light passing through the light transmitting unit is reflected, light inlet, binding means 4 to which the light transmitting unit and the light reflecting unit are bound, light inlet 1, light transmitting Provided with a height adjustment means (6) for adjusting the position of the part (2) and the light reflection part (3), the height adjustment means (6) is a length adjustment line (61) and winding the length adjustment line (61) It is composed of a control line driving means 62 for adjusting the length by loosening or loosening.

The adjustment line driving means 62 is composed of a wheel portion 62a having a wheel (not shown) on which the length adjustment line 61 is wound, and a wheel driving motor 62b for rotating the wheel.

And the control line driving means 62 is a wheel drive motor (62b) part is installed on the strut 100, it is possible to apply a winding module mainly applied to the wire indentation window regulator of the automobile. For example, the winding module can be applied to the one disclosed in Korea Utility Model Registration Utility Model Registration No. 20-0139810.

In addition, the optical duct device for light transmission and air flow according to a modification of the present invention is provided with an input means (not shown) for inputting an input signal for forward and reverse driving of the control line driving means 62 .

The input means can also be configured as a remote control device such as a switch or a remote control for inputting the forward/reverse driving signal and on/off input signal of the control wire driving means 62, but using a wireless communication by mounting a communication module on the control wire driving means Thus, it can be configured to be operated by a terminal such as a smartphone.

As described above, in the optical duct device for light transmission and air flow according to a modified example of the present invention, the vertical position adjustment of the light inlet unit 1, the light transmission unit 2 and the light reflection unit 3 can be manually adjusted. Since this is performed more conveniently by adjusting the length of the length adjustment line 61 by rotating the control line driving means 62 forward and reverse without depending on it, plants can be grown more conveniently.

Although the configuration and operation of the optical duct device for light transmission and air flow according to the embodiment of the present invention described above has been described, this is exemplary and those skilled in the art will not depart from the technical spirit of the present invention. It will be understood that substitutions and modifications may be made to some of the above-described embodiments without departing from the scope thereof.

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

1: light inlet
12: slope
2: light transmission unit
3: light reflection part
4: means of bonding
4a: binding wire
41: first connection part
42: second connection part
43: third connection part
44: fourth connection part
5,6: height adjustment means
51, 61: length adjustment line
62: control line drive means

Claims (11)

An optical duct device for light transmission and air flow, comprising:
a light inlet for refracting incident light;
a light transmission unit through which the incident light refracted from the light inlet unit passes;
a light reflecting unit for reflecting the light passing through the light transmitting unit toward the plant; and
The optical duct device for light transmission and air flow, comprising a; binding means to which the light inlet part, the light transmission part, and the light reflection part are bound.
According to claim 1,
The light inlet unit is an optical duct device for light transmission and air flow, characterized in that provided with a Fresnel lens unit for refracting the incident light in the direction of the light transmission unit.
3. The method of claim 2,
The light inlet portion is formed in the shape of a cone or polygonal pyramid provided with an inclined surface on which light is incident, and an optical duct device for light transmission and air flow, characterized in that a ventilation portion is formed for the movement of air.
According to claim 1,
The light transmission unit,
A tubular body that is stretchable and has a hollow inside;
an internal reflection layer formed on the inner surface of the cylindrical body; and
An optical duct device for light transmission and air flow comprising a; an external reflection layer formed on the outer surface of the cylindrical body.
According to claim 1,
The light reflecting unit is an optical duct device for light transmission and air flow, characterized in that it is composed of a convex lens or a reflecting mirror disposed to face the light transmitting unit.
6. The method according to any one of claims 1 to 5,
The binding means includes a binding wire formed of a linear member,
The optical duct device for light transmission and air flow, characterized in that the light inlet part, the light transmission part, and the light reflection part are sequentially bound to the binding wire.
7. The method of claim 6,
An optical duct device for light transmission and air flow, comprising a; height adjusting means for adjusting the vertical height of the binding wire.
8. The method of claim 7,
The binding wire is a first connecting portion having one end bound to a bracing installed in the transverse direction and the other end being bound to the light inlet portion, a second connecting portion disposed downwardly with the first connecting portion and bound to the upper end of the light transmitting portion, and Light characterized in that it comprises a third connection part arranged downwardly in succession with the second connection part to be bound to the lower end of the light transmission part, and a fourth connection part arranged downwardly in succession to the third connection part to be bound to the light reflection part. Optical duct device for transmission and air flow.
9. The method of claim 8,
The height adjusting means has one end bound to the bracing and the other end is light transmission, characterized in that it comprises a length adjustment line which is bound to at least one of the light inlet, the light transmitting unit, and the light reflecting unit. and an optical duct arrangement for air flow.
10. The method of claim 9,
The height adjusting means is an optical duct device for light transmission and air flow, characterized in that it comprises an adjustment wire driving means for adjusting the length by winding or unwinding the length adjustment wire.
11. The method of claim 10,
The control line driving means,
a wheel part having a built-in wheel on which the length adjustment line is wound; and
An optical duct device for light transmission and air flow comprising a; a wheel driving motor for rotating the wheel.

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