TW201507605A - Light-emitting diode lighting module for plant factory and light-emitting diode lighting device for plant factory equipped with the same - Google Patents

Abstract

The present invention embodies a technology which adjusts, at low cost, a quantity of light, according to a wavelength range of light irradiated from a lighting device, to be suitable for a growth condition of a plant. To this end, the present invention lowers the production cost of a lighting device for a plant factory by adopting a low-priced LED blue chip instead of a costly LED red chip which has been conventionally adopted in a plant factory; and allows a quantity of light, corresponding to a target condition in a wavelength range that is suitable for the target condition of plant growth, to be irradiated from a lighting device, produced by means of combining red series, green series and yellow series phosphors with the LED blue chip. Further, the present invention suggests a technology which reduces eyestrain from a red light source, thereby improving working conditions, and at the same time, enhances the wavelength of light emitted from the lighting device, thereby being capable of relatively further increasing the growth efficiency of a plant.

Description

Light-emitting diode lighting module for plant factory and light-emitting diode lighting device for plant factory equipped with the same

The present invention relates to a light-emitting diode lighting module for a plant factory and a light-emitting diode lighting device for a plant factory equipped with the lighting module, which is to eliminate the commonly used high-priced light-emitting diode (LED) red wafer. The light-emitting diode blue wafer reduces the manufacturing cost of the lighting device for the plant factory, reduces the eye fatigue caused by the red light source, thereby improving the working environment, and improving the wavelength of the light emitted by the illumination device, thereby being able to relatively increase The technology of plant breeding efficiency. More specifically, the present invention relates to enabling light emitted from a light-emitting diode illumination module and a light-emitting diode illumination device equipped with the above-described light-emitting diode illumination module to be reflected in the blue series wavelength range (450 nm) for the first time. The peak, and in the red series wavelength range (660nm) also reflects the second peak, thus enabling the plant to fully promote the technology of breeding.

Generally, plants absorb nutrients from roots and produce energy through photosynthetic synthesis of leaves and are used for plant breeding.

Moreover, since the plant factory cultivates plants indoors, it is used for the photosynthetic synthesis of plants.

However, although there are many ways to embody artificial lighting, the wavelength range that embodies light suitable for plant breeding is a core technology for plant factories.

Although a three-wavelength fluorescent lamp has been used in the past, there is a problem that it is not suitable for plant breeding as compared with an excessively large power consumption and a short life.

For this reason, an illumination device using a light-emitting diode has been developed, and a red wafer is used in order to reflect the wavelength range of the red series which is important for plant growth. It is also possible to combine the wavelength range required for the emulation of a blue light-emitting diode or a white light-emitting diode on the red wafer.

However, red wafers are more expensive and consume more power than blue wafers, so they are not efficient for operating plant factories, but use red wafers to reflect the wavelength range of red wafers.

In order to solve the above-mentioned drawbacks, it is necessary to embody a technique in which red, green, and yellow phosphor powder are applied to a light-emitting diode blue wafer to reduce the manufacturing cost of a plant factory lighting device and to improve the wavelength of light emitted from the lighting device. Thereby, the breeding efficiency of the plant can be further improved.

Related technical literature

1. Plant factory light-emitting diode lighting device and manufacturing method thereof (Korean Patent Application No. 10-2010-0028266)

2. Pigment plant factory using a light-emitting diode light source and its device (Korean Patent Application No. 10-2003-0078989)

The present invention has been made in view of the above problems, and an object of the present invention is to provide a light-emitting diode lighting module for a plant factory and a light-emitting diode lighting device for a plant factory equipped with the lighting module, and the above-mentioned plant factory light-emitting diode The lighting module and the light-emitting diode lighting device for plant factories equipped with the lighting module use an inexpensive light-emitting diode blue chip to reduce the manufacturing cost of the plant factory lighting device and improve the wavelength of light emitted from the lighting device Thereby, the breeding efficiency of the plant can be further improved.

In order to achieve the above object, a light-emitting diode lighting module for a plant factory of the present invention is used as a light-emitting diode lighting module for a light-emitting diode lighting device for a plant factory, comprising: a blue wafer light source, by means of external The supplied power source drives and emits a blue series of light; and the red, green and yellow phosphor powder is composed of a yellow series, a green series and a red series of phosphor powder, and is applied to the outer surface of the blue wafer light source. The amount of light that is externally irradiated by the blue wafer light source described above exhibits a first maximum point having a maximum value in a region of 625 nm to 700 nm, and a second value having a smaller value than the first maximum point in a region of 430 nm to 470 nm At the maximum point, the value above the second maximum point is maintained in the region of 550 nm to 660 nm.

A light-emitting diode lighting device for a plant factory equipped with a light-emitting diode lighting module comprises: a light-emitting diode lighting module, wherein the light-emitting diode lighting module comprises a blue wafer light source and red green yellow fluorescent powder The blue wafer light source is driven by a power source supplied from the outside to emit a blue light, and the red, green, and yellow phosphor powder is combined by a phosphor powder such as a yellow series, a green series, and a red series, and coated. The outer surface of the blue wafer light source is such that the amount of light irradiated to the outside by the blue wafer light source exhibits a first maximum point having a maximum value in a region of 625 nm to 700 nm, and exhibits in a region of 430 nm to 470 nm. a second maximum point of a small value of the first maximum point, maintaining a value relatively larger than the second maximum point in a region of 550 nm to 660 nm; and a plurality of the above-described light emitting diode illumination modules are mounted on the circuit substrate to be routed by the circuit Implementing a patterning manner to control on/off of the above-mentioned light emitting diode lighting module, and applying an external power source to the above-mentioned light emitting diode lighting module; and a frame to The circuit board is fixed in such a manner that the bottom surface of the circuit board is placed.

Moreover, the invention also includes a decorative cover for the finalizing the circuit substrate and the light emitting diode lighting module, wherein the circuit substrate is detachably attached to the bottom edge of the frame and placed on the frame, the light emitting two The polar lighting module is mounted on the circuit board.

On the other hand, the plurality of light-emitting diode lighting modules mounted on the circuit board can be arranged in a line in a manner of being equally spaced.

The light-emitting diode lighting device for a plant factory of the present invention has the following advantages:

(1) Excluding a high-priced light-emitting diode red wafer that is usually used in a plant factory lighting device, and using a light-emitting diode blue chip to reduce the manufacturing cost of a plant factory lighting device, so that the light emitted together is in the blue series. Peaks are reflected in the wavelength range (450 nm) and peaks are also reflected in the red series wavelength range (660 nm), thereby promoting plant growth.

(2) Also, in the wavelength range as described above, the fatigue of the eyes caused by the red light source is reduced, thereby improving the working environment.

(3) A peak is reflected in the blue series wavelength range (450 nm) and the red series wavelength range (660 nm), and the blue wafer light source and the red green yellow phosphor powder applied to the outer surface of the blue wafer light source are embodied by one wafer. , making it easy to make.

The structure, features and other objects of the present invention will be further described in the following detailed description of the preferred embodiments of the present invention. It is not the only restriction on patent applications.

1 is a view showing an example of a light-emitting diode lighting device for a plant factory according to the present invention, and FIG. 2 is an enlarged view of a light-emitting diode lighting device and a light-emitting diode lighting module for extracting the plant factory of the present invention. .

Referring to FIG. 1 and FIG. 2, the light-emitting diode lighting module 100 for plant factory of the present invention is disposed in a light-emitting diode lighting device, and is composed of a blue wafer light source 10 and a red green yellow phosphor powder 20 (Red Green Yellow Phospher). .

The blue wafer light source 10 is driven by a power source supplied from the outside and emits a blue series of light. After the red, green, and yellow phosphor powder 20 is applied to the outer surface, the blue wafer light source 10 and the red, green, and yellow phosphor powder 20 are combined and the emitted light reflects white light that emphasizes the wavelength range of the red series.

The red, green and yellow phosphor powder 20 is composed of a yellow series, a green series and a red series of phosphor powder, and is applied to the outer surface of the blue wafer light source 10 such that the amount of light irradiated by the blue wafer light source 10 is from 625 nm to 700 nm. A first maximum point having a maximum value is present in the region, a second maximum point having a value smaller than the first maximum point is exhibited in a region of 430 nm to 470 nm, and a value above the second maximum point is maintained in a region of 550 nm to 660 nm.

At this time, it is preferable to apply the red, green, and yellow phosphor powder 20 to the outer surface of the blue wafer light source 10, and to adhere it in the form of a sticker.

The light-emitting diode lighting module 100 is mounted on the light-emitting diode lighting device for a plant factory of the present invention, and includes a circuit board 200, a frame 300, and a decorative cover 400.

The light-emitting diode lighting module 100 is composed of a blue wafer light source 10 and a yellow series, a green series, and a red series of phosphor powder. The blue wafer light source 10 is driven by a power source supplied from the outside, and emits a blue light. The light of the color series is applied to the outer surface of the blue wafer light source 10 such that the amount of light irradiated by the blue wafer light source 10 exhibits a first maximum point having a maximum value in a region of 625 nm to 700 nm, at 430 nm to 470 nm. A second maximum point having a value smaller than the first maximum point is present in the region, and a value relatively larger than the second maximum point is maintained in the region of 550 nm to 660 nm.

The plurality of light-emitting diode illumination modules 100 are mounted on the circuit board 200, and the light-emitting diode illumination module 100 is controlled to be turned on/off by patterning by circuit wiring, and is applied to the light-emitting diode illumination module 100. Apply an external power source.

The frame 300 fixes the circuit board 200 in a state in which the bottom surface of the circuit board 200 is placed, and supports the lighting device in a manner of being fixed to a support frame of a plant factory.

The decorative cover 400 is used for the finalizing of the circuit substrate 200 and the light-emitting diode illumination module 100. The circuit substrate 200 is detachably attached to the bottom edge of the frame 300 and placed on the frame 300. The light-emitting diode is disposed. The illumination module 100 is mounted on the circuit board 200. At this time, the decorative cover 400 may be selected from one of glass or synthetic resin materials, and preferably, a light synthetic resin material may be selected.

Here, the red, green, and yellow phosphor powder 20 can also be applied to the outer surface of the blue wafer light source 10 or attached as a sticker.

As shown in FIG. 1 , the plurality of light-emitting diode illumination modules 100 mounted on the circuit board 200 can be arranged in a line at equal intervals.

3 is a photograph of a state in which a light-emitting diode lighting device for a plant factory of the present invention is photographed, and FIG. 4 is a view showing a wavelength of light emitted from a light-emitting diode lighting device for a plant factory of the present invention. A chart of the range of target conditions. Here, the graph of FIG. 4 only briefly shows the target condition for a part of the specific wavelength range, and the continuous portion is omitted.

Referring to FIGS. 3 and 4, a red, green, and yellow phosphor powder 20 composed of phosphors of a yellow series, a green series, and a red series is applied to the outer surface of the blue wafer light source 10, at this time, irradiated by the blue wafer light source 10. The amount of light exhibits a first maximum point in which the intensity of light has a maximum value in a region of 625 nm to 700 nm, and a second maximum point having a value smaller than the first maximum point in a region of 430 nm to 470 nm. Also, a value relatively larger than the second maximum point is maintained in the region of 550 nm to 660 nm.

That is, the 3th region of the graph of FIG. 4 has a first maximum point, the 1st region has a second maximum point, and the 2 region maintains a relatively larger value than the second maximum point.

The effects of the present invention embodying the intensity and wavelength range of light as described above can be confirmed in the following sections of Figs. 14 to 19.

Fig. 5 is a photograph showing a state in which a conventional fluorescent lamp is installed in a plant factory, and Fig. 6 is a graph showing an analysis of the wavelength of light emitted from the ordinary fluorescent lamp as described above.

5 and 6, it can be seen that light irradiated from a conventional three-wavelength fluorescent lamp has a very weak light intensity in the wavelength range of 660 nm which is important for plant growth in the present invention.

7 is a photograph of a state in which a lighting device combining a red light emitting diode and a blue light emitting diode is disposed in a plant factory, and FIG. 8 is a view showing a combination of a red light emitting diode and a blue light emitting diode. A graph of the wavelength of light emitted by the illumination device.

Referring to FIGS. 7 and 8, the light irradiated from the illumination device exhibits a peak in a wavelength range of 450 nm as a blue series and a wavelength range of 660 nm as a red series, but maintains a wavelength range of 450 nm in a wavelength range of a region of 550 nm to 660 nm. The strength is relatively small and thus has disadvantages for plant growth.

FIG. 9 is a photograph of a state in which a lighting device combining a white light emitting diode and a red light emitting diode for general illumination is installed in a plant factory, and FIG. 10 is a view showing a white light emitting diode and a red light emitting light from a combination of general illumination. A graph of the wavelength of light emitted by a illuminating device of a diode.

Referring to FIGS. 9 and 10, even if light irradiated from the illumination device exhibits a peak in a wavelength range of 450 nm as a blue series and a wavelength range of 660 nm as a red series, if the wavelength is in the wavelength range of 550 nm to 660 nm, the wavelength is maintained at 450 nm. The relatively low strength in the range has conditions which are unfavorable for plant growth, which have been explained in the above-mentioned Figs. 7 and 8. The result of this can be confirmed in the section of the following FIGS. 14 to 19.

11 is a photograph of a state in which a white light-emitting diode illumination device emphasizing a red wavelength range is installed in a plant factory, and FIG. 12 is specific to a wavelength of light emitted from a white light-emitting diode illumination device that emphasizes a red wavelength range. A chart of target conditions for the wavelength range. Here, the graph of FIG. 12 only briefly shows the target condition for a part of a specific wavelength range, and the continuous portion is omitted.

Referring to FIGS. 11 and 12, the intensity of light irradiated from the illumination device exhibits a peak in a wavelength range of 450 nm as a blue series, and maintains a relatively large intensity in a wavelength range of the wavelength range of 550 nm to 660 nm, which is relatively large in a wavelength range of 450 nm, However, if the intensity does not show a peak in the 660 nm wavelength range as the red series, it can also have a very disadvantageous condition for plant growth.

That is, referring to Fig. 12, there is a second maximum point in the 1 region, and a value relatively larger than the second maximum point in the 2 region. However, even if the first maximum point is present in the 3 region of the graph, if the intensity does not exhibit a peak in the wavelength range of 660 nm, it can also have conditions that are very unfavorable for plant growth.

FIG. 13 is a photograph of a state in which a plurality of light-emitting diode lighting devices including the light-emitting diode lighting device of the present invention are installed in a plant factory for comparison experiments, and shows that in order to obtain FIGS. 14 to 19 as described below. The experimental results are set in various lighting devices of the plant factory.

In the experiments of Figs. 14 to 19, the plants of "Caesar red", "round lettuce", and "Caesar green" were observed according to the conditions of the following list 1, by means of fluorescent lamps, white light-emitting diodes + red light-emitting two The process of light growth by the polar body and the three modes of illumination of the embodiments of the present invention.

Here, the straightness height indicates the distance from the light-emitting diode illumination module 100 to the measurement site.

14 and FIG. 15 are comparisons of the breeding states in the case where the "Caesar red" plants are respectively irradiated with light from a fluorescent lamp, a combined white light emitting diode and a red light emitting diode, and the lighting device of the present invention. Chart.

As shown in FIG. 14 and FIG. 15, it can be seen that the "Caesar Red" which is bred by the illumination device using the white light-emitting diode + the red light-emitting diode of the red wafer with high power consumption and high cost is low in power consumption and adoption. The "Caesar Red" bred by the illumination device of the present invention (white light-emitting diode) of the low-cost blue wafer has almost the same level of growth rate.

16 and FIG. 17 are comparisons of the breeding states in the case where the "round lettuce" plants are irradiated with light from a fluorescent lamp, a combined white light emitting diode, and a red light emitting diode, respectively, and the lighting device of the present invention. Chart.

16 and FIG. 17, it can be seen that the power consumption is low as compared with the "round lettuce" which is bred by the illumination device of the white light-emitting diode + red light-emitting diode of the red wafer which consumes a large amount of power consumption and cost. The "round lettuce" which is bred by the illumination device of the present invention (white light-emitting diode) of the blue wafer of cost, on the other hand, exhibits an excellent growth rate.

18 and FIG. 19 are comparisons of the breeding states in the case where the "Caesar Green" plants are respectively irradiated with light from a fluorescent lamp, a combined white light emitting diode and a red light emitting diode, and the lighting device of the present invention. Chart.

18 and FIG. 19, it is understood that the power consumption is low by using "Caesar Green" which is bred by the illumination device of the white light-emitting diode + red light-emitting diode of the red wafer which consumes a large amount of power consumption and cost. The "Caesar Green" which is bred by the illumination device of the present invention (white light-emitting diode) of the low-cost blue wafer also exhibits an excellent growth rate.

In the above-mentioned FIGS. 14 to 19, the results of experiments on "Caesar Red", "Rice Lettuce", and "Caesar Green" confirmed that the present invention adopting a blue wafer having low power consumption and low cost (white) The illumination device of the light-emitting diode is generally superior to the illumination device of the white light-emitting diode + red light-emitting diode of the red wafer which consumes a large amount of power and cost, and exhibits an excellent plant growth rate.

On the other hand, it can be confirmed from FIGS. 14 to 19 that the lighting device using the fluorescent lamp consumes much more power than the lighting device combining the white light emitting diode and the red light emitting diode, and the lighting device of the present invention. On the contrary, the growth rate of each plant is unfavorable.

In summary, the present invention can achieve the above functions and purposes, so the present invention should meet the requirements of the patent application, and apply in accordance with the law.

10‧‧‧Blue Wafer Light Source
20‧‧‧Red, Green and Yellow Fluorescent Powder
100‧‧‧Lighting diode lighting module
200‧‧‧ circuit substrate
300‧‧‧Frame
400‧‧‧Decorative cover

Fig. 1 is a view showing an example of a light-emitting diode lighting device for a plant factory of the present invention. Fig. 2 is an enlarged view showing an extraction of a light-emitting diode lighting device and a light-emitting diode lighting module for a plant factory of the present invention. Fig. 3 is a photograph showing a state in which a light-emitting diode lighting device for a plant factory of the present invention is provided. Fig. 4 is a graph showing a target condition for presenting a wavelength range of light emitted from a light-emitting diode lighting device for a plant factory of the present invention in a specific wavelength range. FIG. 5 is a photograph of a state in which an ordinary fluorescent lamp is installed in a plant factory. Fig. 6 is a graph showing the wavelength of light emitted from a general fluorescent lamp. FIG. 7 is a photograph of a state in which a lighting device in which a red light emitting diode and a blue light emitting diode are combined is installed in a plant factory. FIG. 8 is a graph showing wavelengths of light emitted from an illumination device combining a red light emitting diode and a blue light emitting diode. FIG. FIG. 9 is a photograph of a state in which a lighting device that combines a white light-emitting diode for a general illumination and a red light-emitting diode is installed in a plant factory. FIG. 10 is a graph showing wavelengths of light emitted from an illumination device that combines a white light-emitting diode for ordinary illumination and a red light-emitting diode. FIG. 11 is a photograph of a state in which a white light-emitting diode illumination device that emphasizes a red wavelength range is installed in a plant factory. FIG. 12 is a graph showing a target condition for presenting a specific wavelength range of a wavelength of light emitted from a white light-emitting diode illumination device that emphasizes a red wavelength range. FIG. FIG. 13 is a photograph of a state in which a plurality of light-emitting diode lighting devices including the light-emitting diode lighting device of the present invention are installed in a plant factory for comparison experiments. Fig. 14 is a reference diagram of a lighting device for irradiating a "caesar red" plant from a fluorescent lamp, a combined white light emitting diode, and a red light emitting diode, respectively. Fig. 15 is a graph comparing the state of growth in the case of light of the illumination device of the present invention. Fig. 16 is a reference diagram of a lighting device for irradiating a "round lettuce" plant from a fluorescent lamp, a combined white light emitting diode, and a red light emitting diode, respectively. Fig. 17 is a graph comparing the state of growth in the case of light of the illumination device of the present invention. Fig. 18 is a reference diagram of a lighting device for irradiating a "caesar green" plant from a fluorescent lamp, a combined white light emitting diode, and a red light emitting diode, respectively. Fig. 19 is a graph comparing the state of growth in the case of light of the illumination device of the present invention.

Claims (4)

A light-emitting diode lighting module for a plant factory, which is provided in a light-emitting diode lighting device for a plant factory, comprising: a blue wafer light source (10), driven by a power source supplied from the outside, and emitting a blue series And red, green and yellow phosphor powder (20), which are composed of a yellow series, a green series and a red series of phosphor powder, and are applied to the outer surface of the blue wafer light source, so that the blue wafer light source is passed through The amount of externally illuminated light exhibits a first maximum point having a maximum value in a region of 625 nm to 700 nm, and a second maximum point having a value smaller than the first maximum point in a region of 430 nm to 470 nm, in a region of 550 nm to 660 nm The value above the second maximum point is maintained. A light-emitting diode lighting device for a plant factory, comprising a light-emitting diode lighting module, comprising: a light-emitting diode lighting module (100), wherein the light-emitting diode lighting module (100) comprises blue The wafer light source (10) and the red, green and yellow phosphor powder (20), the blue wafer light source (10) is driven by a power source supplied from the outside, and emits a blue series of light, and the red, green and yellow phosphor powder (20) is composed of a yellow series. The green series and the red series of phosphor powder are combined and applied to the outer surface of the blue wafer light source, so that the amount of light irradiated to the outside through the blue wafer light source exhibits a maximum value in a region of 625 nm to 700 nm. a first maximum point, exhibiting a second maximum point having a value smaller than the first maximum point in a region of 430 nm to 470 nm, and maintaining a value relatively larger than the second maximum point in a region of 550 nm to 660 nm; (200) mounting a plurality of the light-emitting diode lighting modules, wherein the circuit wiring is in a pattern form to control on/off of the light-emitting diode lighting module, and The photodiode illumination module applies an external power source; and the frame (300) fixes the circuit substrate in such a manner that the bottom surface of the circuit substrate is disposed. The light-emitting diode lighting device for a plant factory according to the second aspect of the invention, further comprising a decorative cover (400) for decorating the circuit substrate and the light-emitting diode lighting module, wherein the circuit substrate is The detachable surface is attached to the bottom edge of the frame and placed on the frame, and the light-emitting diode illumination module is mounted on the circuit board. The light-emitting diode lighting device for a plant factory according to the third aspect of the invention, wherein the plurality of light-emitting diode lighting modules mounted on the circuit board are arranged in a line at equal intervals.